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 import security
  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 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) 2008_R2 Native.",
 209                 default="2008_R2"),
 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 ldap_backend_forced_uri is not None:
 403                 self.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                 self.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                 self.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         if domain_sid is not None:
 411             domain_sid = security.dom_sid(domain_sid)
 412
 413         session = system_session()
 414         try:
 415             result = provision(self.logger,
 416                   session, smbconf=smbconf, targetdir=targetdir,
 417                   samdb_fill=samdb_fill, realm=realm, domain=domain,
 418                   domainguid=domain_guid, domainsid=domain_sid,
 419                   hostname=host_name,
 420                   hostip=host_ip, hostip6=host_ip6,
 421                   sitename=site, ntdsguid=ntds_guid,
 422                   invocationid=invocationid, adminpass=adminpass,
 423                   krbtgtpass=krbtgtpass, machinepass=machinepass,
 424                   dns_backend=dns_backend, dns_forwarder=dns_forwarder,
 425                   dnspass=dnspass, root=root, nobody=nobody,
 426                   users=users,
 427                   serverrole=server_role, dom_for_fun_level=dom_for_fun_level,
 428                   backend_type=ldap_backend_type,
 429                   ldapadminpass=ldapadminpass, ol_mmr_urls=ol_mmr_urls, slapd_path=slapd_path,
 430                   useeadb=eadb, next_rid=next_rid, lp=lp, use_ntvfs=use_ntvfs,
 431                   use_rfc2307=use_rfc2307, skip_sysvolacl=False,
 432                   ldap_backend_extra_port=ldap_backend_extra_port,
 433                   ldap_backend_forced_uri=ldap_backend_forced_uri,
 434                   nosync=ldap_backend_nosync, ldap_dryrun_mode=ldap_dryrun_mode)
 435
 436         except ProvisioningError, e:
 437             raise CommandError("Provision failed", e)
 438
 439         result.report_logger(self.logger)
 440
 441     def _get_nameserver_ip(self):
 442         """Grab the nameserver IP address from /etc/resolv.conf."""
 443         from os import path
 444         RESOLV_CONF="/etc/resolv.conf"
 445
 446         if not path.isfile(RESOLV_CONF):
 447             self.logger.warning("Failed to locate %s" % RESOLV_CONF)
 448             return None
 449
 450         handle = None
 451         try:
 452             handle = open(RESOLV_CONF, 'r')
 453             for line in handle:
 454                 if not line.startswith('nameserver'):
 455                     continue
 456                 # we want the last non-space continuous string of the line
 457                 return line.strip().split()[-1]
 458         finally:
 459             if handle is not None:
 460                 handle.close()
 461
 462         self.logger.warning("No nameserver found in %s" % RESOLV_CONF)
 463
 464
 465 class cmd_domain_dcpromo(Command):
 466     """Promote an existing domain member or NT4 PDC to an AD DC."""
 467
 468     synopsis = "%prog <dnsdomain> [DC|RODC] [options]"
 469
 470     takes_optiongroups = {
 471         "sambaopts": options.SambaOptions,
 472         "versionopts": options.VersionOptions,
 473         "credopts": options.CredentialsOptions,
 474     }
 475
 476     takes_options = [
 477         Option("--server", help="DC to join", type=str),
 478         Option("--site", help="site to join", type=str),
 479         Option("--targetdir", help="where to store provision", type=str),
 480         Option("--domain-critical-only",
 481                help="only replicate critical domain objects",
 482                action="store_true"),
 483         Option("--machinepass", type=str, metavar="PASSWORD",
 484                help="choose machine password (otherwise random)"),
 485         Option("--use-ntvfs", help="Use NTVFS for the fileserver (default = no)",
 486                action="store_true"),
 487         Option("--dns-backend", type="choice", metavar="NAMESERVER-BACKEND",
 488                choices=["SAMBA_INTERNAL", "BIND9_DLZ", "NONE"],
 489                help="The DNS server backend. SAMBA_INTERNAL is the builtin name server (default), "
 490                    "BIND9_DLZ uses samba4 AD to store zone information, "
 491                    "NONE skips the DNS setup entirely (this DC will not be a DNS server)",
 492                default="SAMBA_INTERNAL"),
 493         Option("--quiet", help="Be quiet", action="store_true"),
 494         Option("--verbose", help="Be verbose", action="store_true")
 495         ]
 496
 497     takes_args = ["domain", "role?"]
 498
 499     def run(self, domain, role=None, sambaopts=None, credopts=None,
 500             versionopts=None, server=None, site=None, targetdir=None,
 501             domain_critical_only=False, parent_domain=None, machinepass=None,
 502             use_ntvfs=False, dns_backend=None,
 503             quiet=False, verbose=False):
 504         lp = sambaopts.get_loadparm()
 505         creds = credopts.get_credentials(lp)
 506         net = Net(creds, lp, server=credopts.ipaddress)
 507
 508         if site is None:
 509             site = "Default-First-Site-Name"
 510
 511         logger = self.get_logger()
 512         if verbose:
 513             logger.setLevel(logging.DEBUG)
 514         elif quiet:
 515             logger.setLevel(logging.WARNING)
 516         else:
 517             logger.setLevel(logging.INFO)
 518
 519         netbios_name = lp.get("netbios name")
 520
 521         if not role is None:
 522             role = role.upper()
 523
 524         if role == "DC":
 525             join_DC(logger=logger, server=server, creds=creds, lp=lp, domain=domain,
 526                     site=site, netbios_name=netbios_name, targetdir=targetdir,
 527                     domain_critical_only=domain_critical_only,
 528                     machinepass=machinepass, use_ntvfs=use_ntvfs,
 529                     dns_backend=dns_backend,
 530                     promote_existing=True)
 531         elif role == "RODC":
 532             join_RODC(logger=logger, server=server, creds=creds, lp=lp, domain=domain,
 533                       site=site, netbios_name=netbios_name, targetdir=targetdir,
 534                       domain_critical_only=domain_critical_only,
 535                       machinepass=machinepass, use_ntvfs=use_ntvfs, dns_backend=dns_backend,
 536                       promote_existing=True)
 537         else:
 538             raise CommandError("Invalid role '%s' (possible values: DC, RODC)" % role)
 539
 540
 541 class cmd_domain_join(Command):
 542     """Join domain as either member or backup domain controller."""
 543
 544     synopsis = "%prog <dnsdomain> [DC|RODC|MEMBER|SUBDOMAIN] [options]"
 545
 546     takes_optiongroups = {
 547         "sambaopts": options.SambaOptions,
 548         "versionopts": options.VersionOptions,
 549         "credopts": options.CredentialsOptions,
 550     }
 551
 552     takes_options = [
 553         Option("--server", help="DC to join", type=str),
 554         Option("--site", help="site to join", type=str),
 555         Option("--targetdir", help="where to store provision", type=str),
 556         Option("--parent-domain", help="parent domain to create subdomain under", type=str),
 557         Option("--domain-critical-only",
 558                help="only replicate critical domain objects",
 559                action="store_true"),
 560         Option("--machinepass", type=str, metavar="PASSWORD",
 561                help="choose machine password (otherwise random)"),
 562         Option("--adminpass", type="string", metavar="PASSWORD",
 563                help="choose adminstrator password when joining as a subdomain (otherwise random)"),
 564         Option("--use-ntvfs", help="Use NTVFS for the fileserver (default = no)",
 565                action="store_true"),
 566         Option("--dns-backend", type="choice", metavar="NAMESERVER-BACKEND",
 567                choices=["SAMBA_INTERNAL", "BIND9_DLZ", "NONE"],
 568                help="The DNS server backend. SAMBA_INTERNAL is the builtin name server (default), "
 569                    "BIND9_DLZ uses samba4 AD to store zone information, "
 570                    "NONE skips the DNS setup entirely (this DC will not be a DNS server)",
 571                default="SAMBA_INTERNAL"),
 572         Option("--quiet", help="Be quiet", action="store_true"),
 573         Option("--verbose", help="Be verbose", action="store_true")
 574        ]
 575
 576     takes_args = ["domain", "role?"]
 577
 578     def run(self, domain, role=None, sambaopts=None, credopts=None,
 579             versionopts=None, server=None, site=None, targetdir=None,
 580             domain_critical_only=False, parent_domain=None, machinepass=None,
 581             use_ntvfs=False, dns_backend=None, adminpass=None,
 582             quiet=False, verbose=False):
 583         lp = sambaopts.get_loadparm()
 584         creds = credopts.get_credentials(lp)
 585         net = Net(creds, lp, server=credopts.ipaddress)
 586
 587         if site is None:
 588             site = "Default-First-Site-Name"
 589
 590         logger = self.get_logger()
 591         if verbose:
 592             logger.setLevel(logging.DEBUG)
 593         elif quiet:
 594             logger.setLevel(logging.WARNING)
 595         else:
 596             logger.setLevel(logging.INFO)
 597
 598         netbios_name = lp.get("netbios name")
 599
 600         if not role is None:
 601             role = role.upper()
 602
 603         if role is None or role == "MEMBER":
 604             (join_password, sid, domain_name) = net.join_member(
 605                 domain, netbios_name, LIBNET_JOIN_AUTOMATIC,
 606                 machinepass=machinepass)
 607
 608             self.errf.write("Joined domain %s (%s)\n" % (domain_name, sid))
 609         elif role == "DC":
 610             join_DC(logger=logger, server=server, creds=creds, lp=lp, domain=domain,
 611                     site=site, netbios_name=netbios_name, targetdir=targetdir,
 612                     domain_critical_only=domain_critical_only,
 613                     machinepass=machinepass, use_ntvfs=use_ntvfs, dns_backend=dns_backend)
 614         elif role == "RODC":
 615             join_RODC(logger=logger, server=server, creds=creds, lp=lp, domain=domain,
 616                       site=site, netbios_name=netbios_name, targetdir=targetdir,
 617                       domain_critical_only=domain_critical_only,
 618                       machinepass=machinepass, use_ntvfs=use_ntvfs,
 619                       dns_backend=dns_backend)
 620         elif role == "SUBDOMAIN":
 621             if not adminpass:
 622                 logger.info("Administrator password will be set randomly!")
 623
 624             netbios_domain = lp.get("workgroup")
 625             if parent_domain is None:
 626                 parent_domain = ".".join(domain.split(".")[1:])
 627             join_subdomain(logger=logger, server=server, creds=creds, lp=lp, dnsdomain=domain,
 628                            parent_domain=parent_domain, site=site,
 629                            netbios_name=netbios_name, netbios_domain=netbios_domain,
 630                            targetdir=targetdir, machinepass=machinepass,
 631                            use_ntvfs=use_ntvfs, dns_backend=dns_backend,
 632                            adminpass=adminpass)
 633         else:
 634             raise CommandError("Invalid role '%s' (possible values: MEMBER, DC, RODC, SUBDOMAIN)" % role)
 635
 636
 637 class cmd_domain_demote(Command):
 638     """Demote ourselves from the role of Domain Controller."""
 639
 640     synopsis = "%prog [options]"
 641
 642     takes_options = [
 643         Option("--server", help="DC to force replication before demote", type=str),
 644         Option("--targetdir", help="where provision is stored", type=str),
 645         ]
 646
 647     takes_optiongroups = {
 648         "sambaopts": options.SambaOptions,
 649         "credopts": options.CredentialsOptions,
 650         "versionopts": options.VersionOptions,
 651         }
 652
 653     def run(self, sambaopts=None, credopts=None,
 654             versionopts=None, server=None, targetdir=None):
 655         lp = sambaopts.get_loadparm()
 656         creds = credopts.get_credentials(lp)
 657         net = Net(creds, lp, server=credopts.ipaddress)
 658
 659         netbios_name = lp.get("netbios name")
 660         samdb = SamDB(session_info=system_session(), credentials=creds, lp=lp)
 661         if not server:
 662             res = samdb.search(expression='(&(objectClass=computer)(serverReferenceBL=*))', attrs=["dnsHostName", "name"])
 663             if (len(res) == 0):
 664                 raise CommandError("Unable to search for servers")
 665
 666             if (len(res) == 1):
 667                 raise CommandError("You are the latest server in the domain")
 668
 669             server = None
 670             for e in res:
 671                 if str(e["name"]).lower() != netbios_name.lower():
 672                     server = e["dnsHostName"]
 673                     break
 674
 675         ntds_guid = samdb.get_ntds_GUID()
 676         msg = samdb.search(base=str(samdb.get_config_basedn()),
 677             scope=ldb.SCOPE_SUBTREE, expression="(objectGUID=%s)" % ntds_guid,
 678             attrs=['options'])
 679         if len(msg) == 0 or "options" not in msg[0]:
 680             raise CommandError("Failed to find options on %s" % ntds_guid)
 681
 682         ntds_dn = msg[0].dn
 683         dsa_options = int(str(msg[0]['options']))
 684
 685         res = samdb.search(expression="(fSMORoleOwner=%s)" % str(ntds_dn),
 686                             controls=["search_options:1:2"])
 687
 688         if len(res) != 0:
 689             raise CommandError("Current DC is still the owner of %d role(s), use the role command to transfer roles to another DC" % len(res))
 690
 691         self.errf.write("Using %s as partner server for the demotion\n" %
 692                         server)
 693         (drsuapiBind, drsuapi_handle, supportedExtensions) = drsuapi_connect(server, lp, creds)
 694
 695         self.errf.write("Deactivating inbound replication\n")
 696
 697         nmsg = ldb.Message()
 698         nmsg.dn = msg[0].dn
 699
 700         dsa_options |= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 701         nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 702         samdb.modify(nmsg)
 703
 704         if not (dsa_options & DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL) and not samdb.am_rodc():
 705
 706             self.errf.write("Asking partner server %s to synchronize from us\n"
 707                             % server)
 708             for part in (samdb.get_schema_basedn(),
 709                             samdb.get_config_basedn(),
 710                             samdb.get_root_basedn()):
 711                 try:
 712                     sendDsReplicaSync(drsuapiBind, drsuapi_handle, ntds_guid, str(part), drsuapi.DRSUAPI_DRS_WRIT_REP)
 713                 except drsException, e:
 714                     self.errf.write(
 715                         "Error while demoting, "
 716                         "re-enabling inbound replication\n")
 717                     dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 718                     nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 719                     samdb.modify(nmsg)
 720                     raise CommandError("Error while sending a DsReplicaSync for partion %s" % str(part), e)
 721         try:
 722             remote_samdb = SamDB(url="ldap://%s" % server,
 723                                 session_info=system_session(),
 724                                 credentials=creds, lp=lp)
 725
 726             self.errf.write("Changing userControl and container\n")
 727             res = remote_samdb.search(base=str(remote_samdb.get_root_basedn()),
 728                                 expression="(&(objectClass=user)(sAMAccountName=%s$))" %
 729                                             netbios_name.upper(),
 730                                 attrs=["userAccountControl"])
 731             dc_dn = res[0].dn
 732             uac = int(str(res[0]["userAccountControl"]))
 733
 734         except Exception, e:
 735             self.errf.write(
 736                 "Error while demoting, re-enabling inbound replication\n")
 737             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 738             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 739             samdb.modify(nmsg)
 740             raise CommandError("Error while changing account control", e)
 741
 742         if (len(res) != 1):
 743             self.errf.write(
 744                 "Error while demoting, re-enabling inbound replication")
 745             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 746             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 747             samdb.modify(nmsg)
 748             raise CommandError("Unable to find object with samaccountName = %s$"
 749                                " in the remote dc" % netbios_name.upper())
 750
 751         olduac = uac
 752
 753         uac ^= (UF_SERVER_TRUST_ACCOUNT|UF_TRUSTED_FOR_DELEGATION)
 754         uac |= UF_WORKSTATION_TRUST_ACCOUNT
 755
 756         msg = ldb.Message()
 757         msg.dn = dc_dn
 758
 759         msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 760                                                         ldb.FLAG_MOD_REPLACE,
 761                                                         "userAccountControl")
 762         try:
 763             remote_samdb.modify(msg)
 764         except Exception, e:
 765             self.errf.write(
 766                 "Error while demoting, re-enabling inbound replication")
 767             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 768             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 769             samdb.modify(nmsg)
 770
 771             raise CommandError("Error while changing account control", e)
 772
 773         parent = msg.dn.parent()
 774         rdn = str(res[0].dn)
 775         rdn = string.replace(rdn, ",%s" % str(parent), "")
 776         # Let's move to the Computer container
 777         i = 0
 778         newrdn = rdn
 779
 780         computer_dn = ldb.Dn(remote_samdb, "CN=Computers,%s" % str(remote_samdb.get_root_basedn()))
 781         res = remote_samdb.search(base=computer_dn, expression=rdn, scope=ldb.SCOPE_ONELEVEL)
 782
 783         if (len(res) != 0):
 784             res = remote_samdb.search(base=computer_dn, expression="%s-%d" % (rdn, i),
 785                                         scope=ldb.SCOPE_ONELEVEL)
 786             while(len(res) != 0 and i < 100):
 787                 i = i + 1
 788                 res = remote_samdb.search(base=computer_dn, expression="%s-%d" % (rdn, i),
 789                                             scope=ldb.SCOPE_ONELEVEL)
 790
 791             if i == 100:
 792                 self.errf.write(
 793                     "Error while demoting, re-enabling inbound replication\n")
 794                 dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 795                 nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 796                 samdb.modify(nmsg)
 797
 798                 msg = ldb.Message()
 799                 msg.dn = dc_dn
 800
 801                 msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 802                                                         ldb.FLAG_MOD_REPLACE,
 803                                                         "userAccountControl")
 804
 805                 remote_samdb.modify(msg)
 806
 807                 raise CommandError("Unable to find a slot for renaming %s,"
 808                                     " all names from %s-1 to %s-%d seemed used" %
 809                                     (str(dc_dn), rdn, rdn, i - 9))
 810
 811             newrdn = "%s-%d" % (rdn, i)
 812
 813         try:
 814             newdn = ldb.Dn(remote_samdb, "%s,%s" % (newrdn, str(computer_dn)))
 815             remote_samdb.rename(dc_dn, newdn)
 816         except Exception, e:
 817             self.errf.write(
 818                 "Error while demoting, re-enabling inbound replication\n")
 819             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 820             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 821             samdb.modify(nmsg)
 822
 823             msg = ldb.Message()
 824             msg.dn = dc_dn
 825
 826             msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 827                                                     ldb.FLAG_MOD_REPLACE,
 828                                                     "userAccountControl")
 829
 830             remote_samdb.modify(msg)
 831             raise CommandError("Error while renaming %s to %s" % (str(dc_dn), str(newdn)), e)
 832
 833
 834         server_dsa_dn = samdb.get_serverName()
 835         domain = remote_samdb.get_root_basedn()
 836
 837         try:
 838             sendRemoveDsServer(drsuapiBind, drsuapi_handle, server_dsa_dn, domain)
 839         except drsException, e:
 840             self.errf.write(
 841                 "Error while demoting, re-enabling inbound replication\n")
 842             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 843             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 844             samdb.modify(nmsg)
 845
 846             msg = ldb.Message()
 847             msg.dn = newdn
 848
 849             msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 850                                                     ldb.FLAG_MOD_REPLACE,
 851                                                     "userAccountControl")
 852             print str(dc_dn)
 853             remote_samdb.modify(msg)
 854             remote_samdb.rename(newdn, dc_dn)
 855             raise CommandError("Error while sending a removeDsServer", e)
 856
 857         for s in ("CN=Enterprise,CN=Microsoft System Volumes,CN=System,CN=Configuration",
 858                   "CN=%s,CN=Microsoft System Volumes,CN=System,CN=Configuration" % lp.get("realm"),
 859                   "CN=Domain System Volumes (SYSVOL share),CN=File Replication Service,CN=System"):
 860             try:
 861                 remote_samdb.delete(ldb.Dn(remote_samdb,
 862                                     "%s,%s,%s" % (str(rdn), s, str(remote_samdb.get_root_basedn()))))
 863             except ldb.LdbError, l:
 864                 pass
 865
 866         for s in ("CN=Enterprise,CN=NTFRS Subscriptions",
 867                   "CN=%s, CN=NTFRS Subscriptions" % lp.get("realm"),
 868                   "CN=Domain system Volumes (SYSVOL Share), CN=NTFRS Subscriptions",
 869                   "CN=NTFRS Subscriptions"):
 870             try:
 871                 remote_samdb.delete(ldb.Dn(remote_samdb,
 872                                     "%s,%s" % (s, str(newdn))))
 873             except ldb.LdbError, l:
 874                 pass
 875
 876         self.errf.write("Demote successful\n")
 877
 878
 879 class cmd_domain_level(Command):
 880     """Raise domain and forest function levels."""
 881
 882     synopsis = "%prog (show|raise <options>) [options]"
 883
 884     takes_optiongroups = {
 885         "sambaopts": options.SambaOptions,
 886         "credopts": options.CredentialsOptions,
 887         "versionopts": options.VersionOptions,
 888         }
 889
 890     takes_options = [
 891         Option("-H", "--URL", help="LDB URL for database or target server", type=str,
 892                metavar="URL", dest="H"),
 893         Option("--quiet", help="Be quiet", action="store_true"),
 894         Option("--forest-level", type="choice", choices=["2003", "2008", "2008_R2"],
 895             help="The forest function level (2003 | 2008 | 2008_R2)"),
 896         Option("--domain-level", type="choice", choices=["2003", "2008", "2008_R2"],
 897             help="The domain function level (2003 | 2008 | 2008_R2)")
 898             ]
 899
 900     takes_args = ["subcommand"]
 901
 902     def run(self, subcommand, H=None, forest_level=None, domain_level=None,
 903             quiet=False, credopts=None, sambaopts=None, versionopts=None):
 904         lp = sambaopts.get_loadparm()
 905         creds = credopts.get_credentials(lp, fallback_machine=True)
 906
 907         samdb = SamDB(url=H, session_info=system_session(),
 908             credentials=creds, lp=lp)
 909
 910         domain_dn = samdb.domain_dn()
 911
 912         res_forest = samdb.search("CN=Partitions,%s" % samdb.get_config_basedn(),
 913           scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
 914         assert len(res_forest) == 1
 915
 916         res_domain = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
 917           attrs=["msDS-Behavior-Version", "nTMixedDomain"])
 918         assert len(res_domain) == 1
 919
 920         res_dc_s = samdb.search("CN=Sites,%s" % samdb.get_config_basedn(),
 921           scope=ldb.SCOPE_SUBTREE, expression="(objectClass=nTDSDSA)",
 922           attrs=["msDS-Behavior-Version"])
 923         assert len(res_dc_s) >= 1
 924
 925         try:
 926             level_forest = int(res_forest[0]["msDS-Behavior-Version"][0])
 927             level_domain = int(res_domain[0]["msDS-Behavior-Version"][0])
 928             level_domain_mixed = int(res_domain[0]["nTMixedDomain"][0])
 929
 930             min_level_dc = int(res_dc_s[0]["msDS-Behavior-Version"][0]) # Init value
 931             for msg in res_dc_s:
 932                 if int(msg["msDS-Behavior-Version"][0]) < min_level_dc:
 933                     min_level_dc = int(msg["msDS-Behavior-Version"][0])
 934
 935             if level_forest < 0 or level_domain < 0:
 936                 raise CommandError("Domain and/or forest function level(s) is/are invalid. Correct them or reprovision!")
 937             if min_level_dc < 0:
 938                 raise CommandError("Lowest function level of a DC is invalid. Correct this or reprovision!")
 939             if level_forest > level_domain:
 940                 raise CommandError("Forest function level is higher than the domain level(s). Correct this or reprovision!")
 941             if level_domain > min_level_dc:
 942                 raise CommandError("Domain function level is higher than the lowest function level of a DC. Correct this or reprovision!")
 943
 944         except KeyError:
 945             raise CommandError("Could not retrieve the actual domain, forest level and/or lowest DC function level!")
 946
 947         if subcommand == "show":
 948             self.message("Domain and forest function level for domain '%s'" % domain_dn)
 949             if level_forest == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 950                 self.message("\nATTENTION: You run SAMBA 4 on a forest function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
 951             if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 952                 self.message("\nATTENTION: You run SAMBA 4 on a domain function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
 953             if min_level_dc == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 954                 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)!")
 955
 956             self.message("")
 957
 958             if level_forest == DS_DOMAIN_FUNCTION_2000:
 959                 outstr = "2000"
 960             elif level_forest == DS_DOMAIN_FUNCTION_2003_MIXED:
 961                 outstr = "2003 with mixed domains/interim (NT4 DC support)"
 962             elif level_forest == DS_DOMAIN_FUNCTION_2003:
 963                 outstr = "2003"
 964             elif level_forest == DS_DOMAIN_FUNCTION_2008:
 965                 outstr = "2008"
 966             elif level_forest == DS_DOMAIN_FUNCTION_2008_R2:
 967                 outstr = "2008 R2"
 968             else:
 969                 outstr = "higher than 2008 R2"
 970             self.message("Forest function level: (Windows) " + outstr)
 971
 972             if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 973                 outstr = "2000 mixed (NT4 DC support)"
 974             elif level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed == 0:
 975                 outstr = "2000"
 976             elif level_domain == DS_DOMAIN_FUNCTION_2003_MIXED:
 977                 outstr = "2003 with mixed domains/interim (NT4 DC support)"
 978             elif level_domain == DS_DOMAIN_FUNCTION_2003:
 979                 outstr = "2003"
 980             elif level_domain == DS_DOMAIN_FUNCTION_2008:
 981                 outstr = "2008"
 982             elif level_domain == DS_DOMAIN_FUNCTION_2008_R2:
 983                 outstr = "2008 R2"
 984             else:
 985                 outstr = "higher than 2008 R2"
 986             self.message("Domain function level: (Windows) " + outstr)
 987
 988             if min_level_dc == DS_DOMAIN_FUNCTION_2000:
 989                 outstr = "2000"
 990             elif min_level_dc == DS_DOMAIN_FUNCTION_2003:
 991                 outstr = "2003"
 992             elif min_level_dc == DS_DOMAIN_FUNCTION_2008:
 993                 outstr = "2008"
 994             elif min_level_dc == DS_DOMAIN_FUNCTION_2008_R2:
 995                 outstr = "2008 R2"
 996             else:
 997                 outstr = "higher than 2008 R2"
 998             self.message("Lowest function level of a DC: (Windows) " + outstr)
 999
1000         elif subcommand == "raise":
1001             msgs = []
1002
1003             if domain_level is not None:
1004                 if domain_level == "2003":
1005                     new_level_domain = DS_DOMAIN_FUNCTION_2003
1006                 elif domain_level == "2008":
1007                     new_level_domain = DS_DOMAIN_FUNCTION_2008
1008                 elif domain_level == "2008_R2":
1009                     new_level_domain = DS_DOMAIN_FUNCTION_2008_R2
1010
1011                 if new_level_domain <= level_domain and level_domain_mixed == 0:
1012                     raise CommandError("Domain function level can't be smaller than or equal to the actual one!")
1013
1014                 if new_level_domain > min_level_dc:
1015                     raise CommandError("Domain function level can't be higher than the lowest function level of a DC!")
1016
1017                 # Deactivate mixed/interim domain support
1018                 if level_domain_mixed != 0:
1019                     # Directly on the base DN
1020                     m = ldb.Message()
1021                     m.dn = ldb.Dn(samdb, domain_dn)
1022                     m["nTMixedDomain"] = ldb.MessageElement("0",
1023                       ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
1024                     samdb.modify(m)
1025                     # Under partitions
1026                     m = ldb.Message()
1027                     m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup") + ",CN=Partitions,%s" % samdb.get_config_basedn())
1028                     m["nTMixedDomain"] = ldb.MessageElement("0",
1029                       ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
1030                     try:
1031                         samdb.modify(m)
1032                     except ldb.LdbError, (enum, emsg):
1033                         if enum != ldb.ERR_UNWILLING_TO_PERFORM:
1034                             raise
1035
1036                 # Directly on the base DN
1037                 m = ldb.Message()
1038                 m.dn = ldb.Dn(samdb, domain_dn)
1039                 m["msDS-Behavior-Version"]= ldb.MessageElement(
1040                   str(new_level_domain), ldb.FLAG_MOD_REPLACE,
1041                             "msDS-Behavior-Version")
1042                 samdb.modify(m)
1043                 # Under partitions
1044                 m = ldb.Message()
1045                 m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup")
1046                   + ",CN=Partitions,%s" % samdb.get_config_basedn())
1047                 m["msDS-Behavior-Version"]= ldb.MessageElement(
1048                   str(new_level_domain), ldb.FLAG_MOD_REPLACE,
1049                           "msDS-Behavior-Version")
1050                 try:
1051                     samdb.modify(m)
1052                 except ldb.LdbError, (enum, emsg):
1053                     if enum != ldb.ERR_UNWILLING_TO_PERFORM:
1054                         raise
1055
1056                 level_domain = new_level_domain
1057                 msgs.append("Domain function level changed!")
1058
1059             if forest_level is not None:
1060                 if forest_level == "2003":
1061                     new_level_forest = DS_DOMAIN_FUNCTION_2003
1062                 elif forest_level == "2008":
1063                     new_level_forest = DS_DOMAIN_FUNCTION_2008
1064                 elif forest_level == "2008_R2":
1065                     new_level_forest = DS_DOMAIN_FUNCTION_2008_R2
1066                 if new_level_forest <= level_forest:
1067                     raise CommandError("Forest function level can't be smaller than or equal to the actual one!")
1068                 if new_level_forest > level_domain:
1069                     raise CommandError("Forest function level can't be higher than the domain function level(s). Please raise it/them first!")
1070                 m = ldb.Message()
1071                 m.dn = ldb.Dn(samdb, "CN=Partitions,%s" % samdb.get_config_basedn())
1072                 m["msDS-Behavior-Version"]= ldb.MessageElement(
1073                   str(new_level_forest), ldb.FLAG_MOD_REPLACE,
1074                           "msDS-Behavior-Version")
1075                 samdb.modify(m)
1076                 msgs.append("Forest function level changed!")
1077             msgs.append("All changes applied successfully!")
1078             self.message("\n".join(msgs))
1079         else:
1080             raise CommandError("invalid argument: '%s' (choose from 'show', 'raise')" % subcommand)
1081
1082
1083 class cmd_domain_passwordsettings(Command):
1084     """Set password settings.
1085
1086     Password complexity, password lockout policy, history length,
1087     minimum password length, the minimum and maximum password age) on
1088     a Samba AD DC server.
1089
1090     Use against a Windows DC is possible, but group policy will override it.
1091     """
1092
1093     synopsis = "%prog (show|set <options>) [options]"
1094
1095     takes_optiongroups = {
1096         "sambaopts": options.SambaOptions,
1097         "versionopts": options.VersionOptions,
1098         "credopts": options.CredentialsOptions,
1099         }
1100
1101     takes_options = [
1102         Option("-H", "--URL", help="LDB URL for database or target server", type=str,
1103                metavar="URL", dest="H"),
1104         Option("--quiet", help="Be quiet", action="store_true"),
1105         Option("--complexity", type="choice", choices=["on","off","default"],
1106           help="The password complexity (on | off | default). Default is 'on'"),
1107         Option("--store-plaintext", type="choice", choices=["on","off","default"],
1108           help="Store plaintext passwords where account have 'store passwords with reversible encryption' set (on | off | default). Default is 'off'"),
1109         Option("--history-length",
1110           help="The password history length (<integer> | default).  Default is 24.", type=str),
1111         Option("--min-pwd-length",
1112           help="The minimum password length (<integer> | default).  Default is 7.", type=str),
1113         Option("--min-pwd-age",
1114           help="The minimum password age (<integer in days> | default).  Default is 1.", type=str),
1115         Option("--max-pwd-age",
1116           help="The maximum password age (<integer in days> | default).  Default is 43.", type=str),
1117         Option("--account-lockout-duration",
1118           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),
1119         Option("--account-lockout-threshold",
1120           help="The number of bad password attempts allowed before locking out the account (<integer> | default).  Default is 0 (never lock out).", type=str),
1121         Option("--reset-account-lockout-after",
1122           help="After this time is elapsed, the recorded number of attempts restarts from zero (<integer> | default).  Default is 30.", type=str),
1123           ]
1124
1125     takes_args = ["subcommand"]
1126
1127     def run(self, subcommand, H=None, min_pwd_age=None, max_pwd_age=None,
1128             quiet=False, complexity=None, store_plaintext=None, history_length=None,
1129             min_pwd_length=None, account_lockout_duration=None, account_lockout_threshold=None,
1130             reset_account_lockout_after=None, credopts=None, sambaopts=None,
1131             versionopts=None):
1132         lp = sambaopts.get_loadparm()
1133         creds = credopts.get_credentials(lp)
1134
1135         samdb = SamDB(url=H, session_info=system_session(),
1136             credentials=creds, lp=lp)
1137
1138         domain_dn = samdb.domain_dn()
1139         res = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
1140           attrs=["pwdProperties", "pwdHistoryLength", "minPwdLength",
1141                  "minPwdAge", "maxPwdAge", "lockoutDuration", "lockoutThreshold",
1142                  "lockOutObservationWindow"])
1143         assert(len(res) == 1)
1144         try:
1145             pwd_props = int(res[0]["pwdProperties"][0])
1146             pwd_hist_len = int(res[0]["pwdHistoryLength"][0])
1147             cur_min_pwd_len = int(res[0]["minPwdLength"][0])
1148             # ticks -> days
1149             cur_min_pwd_age = int(abs(int(res[0]["minPwdAge"][0])) / (1e7 * 60 * 60 * 24))
1150             if int(res[0]["maxPwdAge"][0]) == -0x8000000000000000:
1151                 cur_max_pwd_age = 0
1152             else:
1153                 cur_max_pwd_age = int(abs(int(res[0]["maxPwdAge"][0])) / (1e7 * 60 * 60 * 24))
1154             cur_account_lockout_threshold = int(res[0]["lockoutThreshold"][0])
1155             # ticks -> mins
1156             if int(res[0]["lockoutDuration"][0]) == -0x8000000000000000:
1157                 cur_account_lockout_duration = 0
1158             else:
1159                 cur_account_lockout_duration = abs(int(res[0]["lockoutDuration"][0])) / (1e7 * 60)
1160             cur_reset_account_lockout_after = abs(int(res[0]["lockOutObservationWindow"][0])) / (1e7 * 60)
1161         except Exception, e:
1162             raise CommandError("Could not retrieve password properties!", e)
1163
1164         if subcommand == "show":
1165             self.message("Password informations for domain '%s'" % domain_dn)
1166             self.message("")
1167             if pwd_props & DOMAIN_PASSWORD_COMPLEX != 0:
1168                 self.message("Password complexity: on")
1169             else:
1170                 self.message("Password complexity: off")
1171             if pwd_props & DOMAIN_PASSWORD_STORE_CLEARTEXT != 0:
1172                 self.message("Store plaintext passwords: on")
1173             else:
1174                 self.message("Store plaintext passwords: off")
1175             self.message("Password history length: %d" % pwd_hist_len)
1176             self.message("Minimum password length: %d" % cur_min_pwd_len)
1177             self.message("Minimum password age (days): %d" % cur_min_pwd_age)
1178             self.message("Maximum password age (days): %d" % cur_max_pwd_age)
1179             self.message("Account lockout duration (mins): %d" % cur_account_lockout_duration)
1180             self.message("Account lockout threshold (attempts): %d" % cur_account_lockout_threshold)
1181             self.message("Reset account lockout after (mins): %d" % cur_reset_account_lockout_after)
1182         elif subcommand == "set":
1183             msgs = []
1184             m = ldb.Message()
1185             m.dn = ldb.Dn(samdb, domain_dn)
1186
1187             if complexity is not None:
1188                 if complexity == "on" or complexity == "default":
1189                     pwd_props = pwd_props | DOMAIN_PASSWORD_COMPLEX
1190                     msgs.append("Password complexity activated!")
1191                 elif complexity == "off":
1192                     pwd_props = pwd_props & (~DOMAIN_PASSWORD_COMPLEX)
1193                     msgs.append("Password complexity deactivated!")
1194
1195             if store_plaintext is not None:
1196                 if store_plaintext == "on" or store_plaintext == "default":
1197                     pwd_props = pwd_props | DOMAIN_PASSWORD_STORE_CLEARTEXT
1198                     msgs.append("Plaintext password storage for changed passwords activated!")
1199                 elif store_plaintext == "off":
1200                     pwd_props = pwd_props & (~DOMAIN_PASSWORD_STORE_CLEARTEXT)
1201                     msgs.append("Plaintext password storage for changed passwords deactivated!")
1202
1203             if complexity is not None or store_plaintext is not None:
1204                 m["pwdProperties"] = ldb.MessageElement(str(pwd_props),
1205                   ldb.FLAG_MOD_REPLACE, "pwdProperties")
1206
1207             if history_length is not None:
1208                 if history_length == "default":
1209                     pwd_hist_len = 24
1210                 else:
1211                     pwd_hist_len = int(history_length)
1212
1213                 if pwd_hist_len < 0 or pwd_hist_len > 24:
1214                     raise CommandError("Password history length must be in the range of 0 to 24!")
1215
1216                 m["pwdHistoryLength"] = ldb.MessageElement(str(pwd_hist_len),
1217                   ldb.FLAG_MOD_REPLACE, "pwdHistoryLength")
1218                 msgs.append("Password history length changed!")
1219
1220             if min_pwd_length is not None:
1221                 if min_pwd_length == "default":
1222                     min_pwd_len = 7
1223                 else:
1224                     min_pwd_len = int(min_pwd_length)
1225
1226                 if min_pwd_len < 0 or min_pwd_len > 14:
1227                     raise CommandError("Minimum password length must be in the range of 0 to 14!")
1228
1229                 m["minPwdLength"] = ldb.MessageElement(str(min_pwd_len),
1230                   ldb.FLAG_MOD_REPLACE, "minPwdLength")
1231                 msgs.append("Minimum password length changed!")
1232
1233             if min_pwd_age is not None:
1234                 if min_pwd_age == "default":
1235                     min_pwd_age = 1
1236                 else:
1237                     min_pwd_age = int(min_pwd_age)
1238
1239                 if min_pwd_age < 0 or min_pwd_age > 998:
1240                     raise CommandError("Minimum password age must be in the range of 0 to 998!")
1241
1242                 # days -> ticks
1243                 min_pwd_age_ticks = -int(min_pwd_age * (24 * 60 * 60 * 1e7))
1244
1245                 m["minPwdAge"] = ldb.MessageElement(str(min_pwd_age_ticks),
1246                   ldb.FLAG_MOD_REPLACE, "minPwdAge")
1247                 msgs.append("Minimum password age changed!")
1248
1249             if max_pwd_age is not None:
1250                 if max_pwd_age == "default":
1251                     max_pwd_age = 43
1252                 else:
1253                     max_pwd_age = int(max_pwd_age)
1254
1255                 if max_pwd_age < 0 or max_pwd_age > 999:
1256                     raise CommandError("Maximum password age must be in the range of 0 to 999!")
1257
1258                 # days -> ticks
1259                 if max_pwd_age == 0:
1260                     max_pwd_age_ticks = -0x8000000000000000
1261                 else:
1262                     max_pwd_age_ticks = -int(max_pwd_age * (24 * 60 * 60 * 1e7))
1263
1264                 m["maxPwdAge"] = ldb.MessageElement(str(max_pwd_age_ticks),
1265                   ldb.FLAG_MOD_REPLACE, "maxPwdAge")
1266                 msgs.append("Maximum password age changed!")
1267
1268             if account_lockout_duration is not None:
1269                 if account_lockout_duration == "default":
1270                     account_lockout_duration = 30
1271                 else:
1272                     account_lockout_duration = int(account_lockout_duration)
1273
1274                 if account_lockout_duration < 0 or account_lockout_duration > 99999:
1275                     raise CommandError("Maximum password age must be in the range of 0 to 99999!")
1276
1277                 # days -> ticks
1278                 if account_lockout_duration == 0:
1279                     account_lockout_duration_ticks = -0x8000000000000000
1280                 else:
1281                     account_lockout_duration_ticks = -int(account_lockout_duration * (60 * 1e7))
1282
1283                 m["lockoutDuration"] = ldb.MessageElement(str(account_lockout_duration_ticks),
1284                   ldb.FLAG_MOD_REPLACE, "lockoutDuration")
1285                 msgs.append("Account lockout duration changed!")
1286
1287             if account_lockout_threshold is not None:
1288                 if account_lockout_threshold == "default":
1289                     account_lockout_threshold = 0
1290                 else:
1291                     account_lockout_threshold = int(account_lockout_threshold)
1292
1293                 m["lockoutThreshold"] = ldb.MessageElement(str(account_lockout_threshold),
1294                   ldb.FLAG_MOD_REPLACE, "lockoutThreshold")
1295                 msgs.append("Account lockout threshold changed!")
1296
1297             if reset_account_lockout_after is not None:
1298                 if reset_account_lockout_after == "default":
1299                     reset_account_lockout_after = 30
1300                 else:
1301                     reset_account_lockout_after = int(reset_account_lockout_after)
1302
1303                 if reset_account_lockout_after < 0 or reset_account_lockout_after > 99999:
1304                     raise CommandError("Maximum password age must be in the range of 0 to 99999!")
1305
1306                 # days -> ticks
1307                 if reset_account_lockout_after == 0:
1308                     reset_account_lockout_after_ticks = -0x8000000000000000
1309                 else:
1310                     reset_account_lockout_after_ticks = -int(reset_account_lockout_after * (60 * 1e7))
1311
1312                 m["lockOutObservationWindow"] = ldb.MessageElement(str(reset_account_lockout_after_ticks),
1313                   ldb.FLAG_MOD_REPLACE, "lockOutObservationWindow")
1314                 msgs.append("Duration to reset account lockout after changed!")
1315
1316             if max_pwd_age > 0 and min_pwd_age >= max_pwd_age:
1317                 raise CommandError("Maximum password age (%d) must be greater than minimum password age (%d)!" % (max_pwd_age, min_pwd_age))
1318
1319             if len(m) == 0:
1320                 raise CommandError("You must specify at least one option to set. Try --help")
1321             samdb.modify(m)
1322             msgs.append("All changes applied successfully!")
1323             self.message("\n".join(msgs))
1324         else:
1325             raise CommandError("Wrong argument '%s'!" % subcommand)
1326
1327
1328 class cmd_domain_classicupgrade(Command):
1329     """Upgrade from Samba classic (NT4-like) database to Samba AD DC database.
1330
1331     Specify either a directory with all Samba classic DC databases and state files (with --dbdir) or
1332     the testparm utility from your classic installation (with --testparm).
1333     """
1334
1335     synopsis = "%prog [options] <classic_smb_conf>"
1336
1337     takes_optiongroups = {
1338         "sambaopts": options.SambaOptions,
1339         "versionopts": options.VersionOptions
1340     }
1341
1342     takes_options = [
1343         Option("--dbdir", type="string", metavar="DIR",
1344                   help="Path to samba classic DC database directory"),
1345         Option("--testparm", type="string", metavar="PATH",
1346                   help="Path to samba classic DC testparm utility from the previous installation.  This allows the default paths of the previous installation to be followed"),
1347         Option("--targetdir", type="string", metavar="DIR",
1348                   help="Path prefix where the new Samba 4.0 AD domain should be initialised"),
1349         Option("--quiet", help="Be quiet", action="store_true"),
1350         Option("--verbose", help="Be verbose", action="store_true"),
1351         Option("--use-xattrs", type="choice", choices=["yes","no","auto"], metavar="[yes|no|auto]",
1352                    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"),
1353         Option("--use-ntvfs", help="Use NTVFS for the fileserver (default = no)",
1354                action="store_true"),
1355         Option("--dns-backend", type="choice", metavar="NAMESERVER-BACKEND",
1356                choices=["SAMBA_INTERNAL", "BIND9_FLATFILE", "BIND9_DLZ", "NONE"],
1357                help="The DNS server backend. SAMBA_INTERNAL is the builtin name server (default), "
1358                    "BIND9_FLATFILE uses bind9 text database to store zone information, "
1359                    "BIND9_DLZ uses samba4 AD to store zone information, "
1360                    "NONE skips the DNS setup entirely (this DC will not be a DNS server)",
1361                default="SAMBA_INTERNAL")
1362     ]
1363
1364     takes_args = ["smbconf"]
1365
1366     def run(self, smbconf=None, targetdir=None, dbdir=None, testparm=None,
1367             quiet=False, verbose=False, use_xattrs=None, sambaopts=None, versionopts=None,
1368             dns_backend=None, use_ntvfs=False):
1369
1370         if not os.path.exists(smbconf):
1371             raise CommandError("File %s does not exist" % smbconf)
1372
1373         if testparm and not os.path.exists(testparm):
1374             raise CommandError("Testparm utility %s does not exist" % testparm)
1375
1376         if dbdir and not os.path.exists(dbdir):
1377             raise CommandError("Directory %s does not exist" % dbdir)
1378
1379         if not dbdir and not testparm:
1380             raise CommandError("Please specify either dbdir or testparm")
1381
1382         logger = self.get_logger()
1383         if verbose:
1384             logger.setLevel(logging.DEBUG)
1385         elif quiet:
1386             logger.setLevel(logging.WARNING)
1387         else:
1388             logger.setLevel(logging.INFO)
1389
1390         if dbdir and testparm:
1391             logger.warning("both dbdir and testparm specified, ignoring dbdir.")
1392             dbdir = None
1393
1394         lp = sambaopts.get_loadparm()
1395
1396         s3conf = s3param.get_context()
1397
1398         if sambaopts.realm:
1399             s3conf.set("realm", sambaopts.realm)
1400
1401         if targetdir is not None:
1402             if not os.path.isdir(targetdir):
1403                 os.mkdir(targetdir)
1404
1405         eadb = True
1406         if use_xattrs == "yes":
1407             eadb = False
1408         elif use_xattrs == "auto" and not s3conf.get("posix:eadb"):
1409             if targetdir:
1410                 tmpfile = tempfile.NamedTemporaryFile(dir=os.path.abspath(targetdir))
1411             else:
1412                 tmpfile = tempfile.NamedTemporaryFile(dir=os.path.abspath(os.path.dirname(lp.get("private dir"))))
1413             try:
1414                 try:
1415                     samba.ntacls.setntacl(lp, tmpfile.name,
1416                                 "O:S-1-5-32G:S-1-5-32", "S-1-5-32", "native")
1417                     eadb = False
1418                 except Exception:
1419                     # FIXME: Don't catch all exceptions here
1420                     logger.info("You are not root or your system do not support xattr, using tdb backend for attributes. "
1421                                 "If you intend to use this provision in production, rerun the script as root on a system supporting xattrs.")
1422             finally:
1423                 tmpfile.close()
1424
1425         # Set correct default values from dbdir or testparm
1426         paths = {}
1427         if dbdir:
1428             paths["state directory"] = dbdir
1429             paths["private dir"] = dbdir
1430             paths["lock directory"] = dbdir
1431             paths["smb passwd file"] = dbdir + "/smbpasswd"
1432         else:
1433             paths["state directory"] = get_testparm_var(testparm, smbconf, "state directory")
1434             paths["private dir"] = get_testparm_var(testparm, smbconf, "private dir")
1435             paths["smb passwd file"] = get_testparm_var(testparm, smbconf, "smb passwd file")
1436             paths["lock directory"] = get_testparm_var(testparm, smbconf, "lock directory")
1437             # "testparm" from Samba 3 < 3.4.x is not aware of the parameter
1438             # "state directory", instead make use of "lock directory"
1439             if len(paths["state directory"]) == 0:
1440                 paths["state directory"] = paths["lock directory"]
1441
1442         for p in paths:
1443             s3conf.set(p, paths[p])
1444
1445         # load smb.conf parameters
1446         logger.info("Reading smb.conf")
1447         s3conf.load(smbconf)
1448         samba3 = Samba3(smbconf, s3conf)
1449
1450         logger.info("Provisioning")
1451         upgrade_from_samba3(samba3, logger, targetdir, session_info=system_session(),
1452                             useeadb=eadb, dns_backend=dns_backend, use_ntvfs=use_ntvfs)
1453
1454
1455 class cmd_domain_samba3upgrade(cmd_domain_classicupgrade):
1456     __doc__ = cmd_domain_classicupgrade.__doc__
1457
1458     # This command is present for backwards compatibility only,
1459     # and should not be shown.
1460
1461     hidden = True
1462
1463
1464 class cmd_domain(SuperCommand):
1465     """Domain management."""
1466
1467     subcommands = {}
1468     subcommands["demote"] = cmd_domain_demote()
1469     if cmd_domain_export_keytab is not None:
1470         subcommands["exportkeytab"] = cmd_domain_export_keytab()
1471     subcommands["info"] = cmd_domain_info()
1472     subcommands["provision"] = cmd_domain_provision()
1473     subcommands["join"] = cmd_domain_join()
1474     subcommands["dcpromo"] = cmd_domain_dcpromo()
1475     subcommands["level"] = cmd_domain_level()
1476     subcommands["passwordsettings"] = cmd_domain_passwordsettings()
1477     subcommands["classicupgrade"] = cmd_domain_classicupgrade()
1478     subcommands["samba3upgrade"] = cmd_domain_samba3upgrade()