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

   1 #!/usr/bin/env python
   2 #
   3 # domain management
   4 #
   5 # Copyright Matthias Dieter Wallnoefer 2009
   6 # Copyright Andrew Kroeger 2009
   7 # Copyright Jelmer Vernooij 2009
   8 # Copyright Giampaolo Lauria 2011
   9 #
  10 # This program is free software; you can redistribute it and/or modify
  11 # it under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; either version 3 of the License, or
  13 # (at your option) any later version.
  14 #
  15 # This program is distributed in the hope that it will be useful,
  16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 # GNU General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU General Public License
  21 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 #
  23
  24
  25
  26 import samba.getopt as options
  27 import ldb
  28 import sys, os
  29 import tempfile
  30 import logging
  31 from samba import Ldb
  32 from samba.net import Net, LIBNET_JOIN_AUTOMATIC
  33 from samba.dcerpc.misc import SEC_CHAN_WKSTA
  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.samr import DOMAIN_PASSWORD_COMPLEX, DOMAIN_PASSWORD_STORE_CLEARTEXT
  38 from samba.netcmd import (
  39     Command,
  40     CommandError,
  41     SuperCommand,
  42     Option
  43     )
  44 from samba.samba3 import Samba3
  45 from samba.samba3 import param as s3param
  46 from samba.upgrade import upgrade_from_samba3
  47 from samba.provision import ProvisioningError
  48
  49 from samba.dsdb import (
  50     DS_DOMAIN_FUNCTION_2000,
  51     DS_DOMAIN_FUNCTION_2003,
  52     DS_DOMAIN_FUNCTION_2003_MIXED,
  53     DS_DOMAIN_FUNCTION_2008,
  54     DS_DOMAIN_FUNCTION_2008_R2,
  55     )
  56
  57 def get_testparm_var(testparm, smbconf, varname):
  58     cmd = "%s -s -l --parameter-name='%s' %s 2>/dev/null" % (testparm, varname, smbconf)
  59     output = os.popen(cmd, 'r').readline()
  60     return output.strip()
  61
  62 class cmd_domain_export_keytab(Command):
  63     """Dumps kerberos keys of the domain into a keytab"""
  64
  65     synopsis = "%prog domain exportkeytab <keytab> [options]"
  66
  67     takes_options = [
  68         ]
  69
  70     takes_args = ["keytab"]
  71
  72     def run(self, keytab, credopts=None, sambaopts=None, versionopts=None):
  73         lp = sambaopts.get_loadparm()
  74         net = Net(None, lp, server=credopts.ipaddress)
  75         net.export_keytab(keytab=keytab)
  76
  77
  78
  79 class cmd_domain_join(Command):
  80     """Joins domain as either member or backup domain controller *"""
  81
  82     synopsis = "%prog domain join <dnsdomain> [DC|RODC|MEMBER|SUBDOMAIN] [options]"
  83
  84     takes_options = [
  85         Option("--server", help="DC to join", type=str),
  86         Option("--site", help="site to join", type=str),
  87         Option("--targetdir", help="where to store provision", type=str),
  88         Option("--parent-domain", help="parent domain to create subdomain under", type=str),
  89         Option("--domain-critical-only",
  90                help="only replicate critical domain objects",
  91                action="store_true"),
  92         ]
  93
  94     takes_args = ["domain", "role?"]
  95
  96     def run(self, domain, role=None, sambaopts=None, credopts=None,
  97             versionopts=None, server=None, site=None, targetdir=None,
  98             domain_critical_only=False, parent_domain=None):
  99         lp = sambaopts.get_loadparm()
 100         creds = credopts.get_credentials(lp)
 101         net = Net(creds, lp, server=credopts.ipaddress)
 102
 103         if site is None:
 104             site = "Default-First-Site-Name"
 105
 106         netbios_name = lp.get("netbios name")
 107
 108         if not role is None:
 109             role = role.upper()
 110
 111         if role is None or role == "MEMBER":
 112             (join_password, sid, domain_name) = net.join_member(domain,
 113                                                                 netbios_name,
 114                                                                 LIBNET_JOIN_AUTOMATIC)
 115
 116             self.outf.write("Joined domain %s (%s)\n" % (domain_name, sid))
 117             return
 118         elif role == "DC":
 119             join_DC(server=server, creds=creds, lp=lp, domain=domain,
 120                     site=site, netbios_name=netbios_name, targetdir=targetdir,
 121                     domain_critical_only=domain_critical_only)
 122             return
 123         elif role == "RODC":
 124             join_RODC(server=server, creds=creds, lp=lp, domain=domain,
 125                       site=site, netbios_name=netbios_name, targetdir=targetdir,
 126                       domain_critical_only=domain_critical_only)
 127             return
 128         elif role == "SUBDOMAIN":
 129             netbios_domain = lp.get("workgroup")
 130             if parent_domain is None:
 131                 parent_domain = ".".join(domain.split(".")[1:])
 132             join_subdomain(server=server, creds=creds, lp=lp, dnsdomain=domain, parent_domain=parent_domain,
 133                            site=site, netbios_name=netbios_name, netbios_domain=netbios_domain, targetdir=targetdir)
 134             return
 135         else:
 136             raise CommandError("Invalid role %s (possible values: MEMBER, DC, RODC)" % role)
 137
 138
 139
 140 class cmd_domain_level(Command):
 141     """Raises domain and forest function levels"""
 142
 143     synopsis = "%prog domain level (show|raise <options>) [options]"
 144
 145     takes_options = [
 146         Option("-H", "--URL", help="LDB URL for database or target server", type=str,
 147                metavar="URL", dest="H"),
 148         Option("--quiet", help="Be quiet", action="store_true"),
 149         Option("--forest-level", type="choice", choices=["2003", "2008", "2008_R2"],
 150             help="The forest function level (2003 | 2008 | 2008_R2)"),
 151         Option("--domain-level", type="choice", choices=["2003", "2008", "2008_R2"],
 152             help="The domain function level (2003 | 2008 | 2008_R2)")
 153             ]
 154
 155     takes_args = ["subcommand"]
 156
 157     def run(self, subcommand, H=None, forest_level=None, domain_level=None,
 158             quiet=False, credopts=None, sambaopts=None, versionopts=None):
 159         lp = sambaopts.get_loadparm()
 160         creds = credopts.get_credentials(lp, fallback_machine=True)
 161
 162         samdb = SamDB(url=H, session_info=system_session(),
 163             credentials=creds, lp=lp)
 164
 165         domain_dn = samdb.domain_dn()
 166
 167         res_forest = samdb.search("CN=Partitions,CN=Configuration," + domain_dn,
 168           scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
 169         assert len(res_forest) == 1
 170
 171         res_domain = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
 172           attrs=["msDS-Behavior-Version", "nTMixedDomain"])
 173         assert len(res_domain) == 1
 174
 175         res_dc_s = samdb.search("CN=Sites,CN=Configuration," + domain_dn,
 176           scope=ldb.SCOPE_SUBTREE, expression="(objectClass=nTDSDSA)",
 177           attrs=["msDS-Behavior-Version"])
 178         assert len(res_dc_s) >= 1
 179
 180         try:
 181             level_forest = int(res_forest[0]["msDS-Behavior-Version"][0])
 182             level_domain = int(res_domain[0]["msDS-Behavior-Version"][0])
 183             level_domain_mixed = int(res_domain[0]["nTMixedDomain"][0])
 184
 185             min_level_dc = int(res_dc_s[0]["msDS-Behavior-Version"][0]) # Init value
 186             for msg in res_dc_s:
 187                 if int(msg["msDS-Behavior-Version"][0]) < min_level_dc:
 188                     min_level_dc = int(msg["msDS-Behavior-Version"][0])
 189
 190             if level_forest < 0 or level_domain < 0:
 191                 raise CommandError("Domain and/or forest function level(s) is/are invalid. Correct them or reprovision!")
 192             if min_level_dc < 0:
 193                 raise CommandError("Lowest function level of a DC is invalid. Correct this or reprovision!")
 194             if level_forest > level_domain:
 195                 raise CommandError("Forest function level is higher than the domain level(s). Correct this or reprovision!")
 196             if level_domain > min_level_dc:
 197                 raise CommandError("Domain function level is higher than the lowest function level of a DC. Correct this or reprovision!")
 198
 199         except KeyError:
 200             raise CommandError("Could not retrieve the actual domain, forest level and/or lowest DC function level!")
 201
 202         if subcommand == "show":
 203             self.message("Domain and forest function level for domain '%s'" % domain_dn)
 204             if level_forest == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 205                 self.message("\nATTENTION: You run SAMBA 4 on a forest function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
 206             if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 207                 self.message("\nATTENTION: You run SAMBA 4 on a domain function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
 208             if min_level_dc == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 209                 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)!")
 210
 211             self.message("")
 212
 213             if level_forest == DS_DOMAIN_FUNCTION_2000:
 214                 outstr = "2000"
 215             elif level_forest == DS_DOMAIN_FUNCTION_2003_MIXED:
 216                 outstr = "2003 with mixed domains/interim (NT4 DC support)"
 217             elif level_forest == DS_DOMAIN_FUNCTION_2003:
 218                 outstr = "2003"
 219             elif level_forest == DS_DOMAIN_FUNCTION_2008:
 220                 outstr = "2008"
 221             elif level_forest == DS_DOMAIN_FUNCTION_2008_R2:
 222                 outstr = "2008 R2"
 223             else:
 224                 outstr = "higher than 2008 R2"
 225             self.message("Forest function level: (Windows) " + outstr)
 226
 227             if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 228                 outstr = "2000 mixed (NT4 DC support)"
 229             elif level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed == 0:
 230                 outstr = "2000"
 231             elif level_domain == DS_DOMAIN_FUNCTION_2003_MIXED:
 232                 outstr = "2003 with mixed domains/interim (NT4 DC support)"
 233             elif level_domain == DS_DOMAIN_FUNCTION_2003:
 234                 outstr = "2003"
 235             elif level_domain == DS_DOMAIN_FUNCTION_2008:
 236                 outstr = "2008"
 237             elif level_domain == DS_DOMAIN_FUNCTION_2008_R2:
 238                 outstr = "2008 R2"
 239             else:
 240                 outstr = "higher than 2008 R2"
 241             self.message("Domain function level: (Windows) " + outstr)
 242
 243             if min_level_dc == DS_DOMAIN_FUNCTION_2000:
 244                 outstr = "2000"
 245             elif min_level_dc == DS_DOMAIN_FUNCTION_2003:
 246                 outstr = "2003"
 247             elif min_level_dc == DS_DOMAIN_FUNCTION_2008:
 248                 outstr = "2008"
 249             elif min_level_dc == DS_DOMAIN_FUNCTION_2008_R2:
 250                 outstr = "2008 R2"
 251             else:
 252                 outstr = "higher than 2008 R2"
 253             self.message("Lowest function level of a DC: (Windows) " + outstr)
 254
 255         elif subcommand == "raise":
 256             msgs = []
 257
 258             if domain_level is not None:
 259                 if domain_level == "2003":
 260                     new_level_domain = DS_DOMAIN_FUNCTION_2003
 261                 elif domain_level == "2008":
 262                     new_level_domain = DS_DOMAIN_FUNCTION_2008
 263                 elif domain_level == "2008_R2":
 264                     new_level_domain = DS_DOMAIN_FUNCTION_2008_R2
 265
 266                 if new_level_domain <= level_domain and level_domain_mixed == 0:
 267                     raise CommandError("Domain function level can't be smaller equal to the actual one!")
 268
 269                 if new_level_domain > min_level_dc:
 270                     raise CommandError("Domain function level can't be higher than the lowest function level of a DC!")
 271
 272                 # Deactivate mixed/interim domain support
 273                 if level_domain_mixed != 0:
 274                     # Directly on the base DN
 275                     m = ldb.Message()
 276                     m.dn = ldb.Dn(samdb, domain_dn)
 277                     m["nTMixedDomain"] = ldb.MessageElement("0",
 278                       ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
 279                     samdb.modify(m)
 280                     # Under partitions
 281                     m = ldb.Message()
 282                     m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup")
 283                       + ",CN=Partitions,CN=Configuration," + domain_dn)
 284                     m["nTMixedDomain"] = ldb.MessageElement("0",
 285                       ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
 286                     try:
 287                         samdb.modify(m)
 288                     except ldb.LdbError, (enum, emsg):
 289                         if enum != ldb.ERR_UNWILLING_TO_PERFORM:
 290                             raise
 291
 292                 # Directly on the base DN
 293                 m = ldb.Message()
 294                 m.dn = ldb.Dn(samdb, domain_dn)
 295                 m["msDS-Behavior-Version"]= ldb.MessageElement(
 296                   str(new_level_domain), ldb.FLAG_MOD_REPLACE,
 297                             "msDS-Behavior-Version")
 298                 samdb.modify(m)
 299                 # Under partitions
 300                 m = ldb.Message()
 301                 m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup")
 302                   + ",CN=Partitions,CN=Configuration," + domain_dn)
 303                 m["msDS-Behavior-Version"]= ldb.MessageElement(
 304                   str(new_level_domain), ldb.FLAG_MOD_REPLACE,
 305                           "msDS-Behavior-Version")
 306                 try:
 307                     samdb.modify(m)
 308                 except ldb.LdbError, (enum, emsg):
 309                     if enum != ldb.ERR_UNWILLING_TO_PERFORM:
 310                         raise
 311
 312                 level_domain = new_level_domain
 313                 msgs.append("Domain function level changed!")
 314
 315             if forest_level is not None:
 316                 if forest_level == "2003":
 317                     new_level_forest = DS_DOMAIN_FUNCTION_2003
 318                 elif forest_level == "2008":
 319                     new_level_forest = DS_DOMAIN_FUNCTION_2008
 320                 elif forest_level == "2008_R2":
 321                     new_level_forest = DS_DOMAIN_FUNCTION_2008_R2
 322                 if new_level_forest <= level_forest:
 323                     raise CommandError("Forest function level can't be smaller equal to the actual one!")
 324                 if new_level_forest > level_domain:
 325                     raise CommandError("Forest function level can't be higher than the domain function level(s). Please raise it/them first!")
 326                 m = ldb.Message()
 327                 m.dn = ldb.Dn(samdb, "CN=Partitions,CN=Configuration,"
 328                   + domain_dn)
 329                 m["msDS-Behavior-Version"]= ldb.MessageElement(
 330                   str(new_level_forest), ldb.FLAG_MOD_REPLACE,
 331                           "msDS-Behavior-Version")
 332                 samdb.modify(m)
 333                 msgs.append("Forest function level changed!")
 334             msgs.append("All changes applied successfully!")
 335             self.message("\n".join(msgs))
 336         else:
 337             raise CommandError("Wrong argument '%s'!" % subcommand)
 338
 339
 340
 341 class cmd_domain_machinepassword(Command):
 342     """Gets a machine password out of our SAM"""
 343
 344     synopsis = "%prog domain machinepassword <accountname> [options]"
 345
 346     takes_args = ["secret"]
 347
 348     def run(self, secret, sambaopts=None, credopts=None, versionopts=None):
 349         lp = sambaopts.get_loadparm()
 350         creds = credopts.get_credentials(lp, fallback_machine=True)
 351         name = lp.get("secrets database")
 352         path = lp.get("private dir")
 353         url = os.path.join(path, name)
 354         if not os.path.exists(url):
 355             raise CommandError("secret database not found at %s " % url)
 356         secretsdb = Ldb(url=url, session_info=system_session(),
 357             credentials=creds, lp=lp)
 358         result = secretsdb.search(attrs=["secret"],
 359             expression="(&(objectclass=primaryDomain)(samaccountname=%s))" % ldb.binary_encode(secret))
 360
 361         if len(result) != 1:
 362             raise CommandError("search returned %d records, expected 1" % len(result))
 363
 364         self.outf.write("%s\n" % result[0]["secret"])
 365
 366
 367
 368 class cmd_domain_passwordsettings(Command):
 369     """Sets password settings
 370
 371     Password complexity, history length, minimum password length, the minimum
 372     and maximum password age) on a Samba4 server.
 373     """
 374
 375     synopsis = "%prog domain passwordsettings (show|set <options>) [options]"
 376
 377     takes_options = [
 378         Option("-H", "--URL", help="LDB URL for database or target server", type=str,
 379                metavar="URL", dest="H"),
 380         Option("--quiet", help="Be quiet", action="store_true"),
 381         Option("--complexity", type="choice", choices=["on","off","default"],
 382           help="The password complexity (on | off | default). Default is 'on'"),
 383         Option("--store-plaintext", type="choice", choices=["on","off","default"],
 384           help="Store plaintext passwords where account have 'store passwords with reversible encryption' set (on | off | default). Default is 'off'"),
 385         Option("--history-length",
 386           help="The password history length (<integer> | default).  Default is 24.", type=str),
 387         Option("--min-pwd-length",
 388           help="The minimum password length (<integer> | default).  Default is 7.", type=str),
 389         Option("--min-pwd-age",
 390           help="The minimum password age (<integer in days> | default).  Default is 1.", type=str),
 391         Option("--max-pwd-age",
 392           help="The maximum password age (<integer in days> | default).  Default is 43.", type=str),
 393           ]
 394
 395     takes_args = ["subcommand"]
 396
 397     def run(self, subcommand, H=None, min_pwd_age=None, max_pwd_age=None,
 398             quiet=False, complexity=None, store_plaintext=None, history_length=None,
 399             min_pwd_length=None, credopts=None, sambaopts=None,
 400             versionopts=None):
 401         lp = sambaopts.get_loadparm()
 402         creds = credopts.get_credentials(lp)
 403
 404         samdb = SamDB(url=H, session_info=system_session(),
 405             credentials=creds, lp=lp)
 406
 407         domain_dn = samdb.domain_dn()
 408         res = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
 409           attrs=["pwdProperties", "pwdHistoryLength", "minPwdLength",
 410                  "minPwdAge", "maxPwdAge"])
 411         assert(len(res) == 1)
 412         try:
 413             pwd_props = int(res[0]["pwdProperties"][0])
 414             pwd_hist_len = int(res[0]["pwdHistoryLength"][0])
 415             cur_min_pwd_len = int(res[0]["minPwdLength"][0])
 416             # ticks -> days
 417             cur_min_pwd_age = int(abs(int(res[0]["minPwdAge"][0])) / (1e7 * 60 * 60 * 24))
 418             cur_max_pwd_age = int(abs(int(res[0]["maxPwdAge"][0])) / (1e7 * 60 * 60 * 24))
 419         except Exception, e:
 420             raise CommandError("Could not retrieve password properties!", e)
 421
 422         if subcommand == "show":
 423             self.message("Password informations for domain '%s'" % domain_dn)
 424             self.message("")
 425             if pwd_props & DOMAIN_PASSWORD_COMPLEX != 0:
 426                 self.message("Password complexity: on")
 427             else:
 428                 self.message("Password complexity: off")
 429             if pwd_props & DOMAIN_PASSWORD_STORE_CLEARTEXT != 0:
 430                 self.message("Store plaintext passwords: on")
 431             else:
 432                 self.message("Store plaintext passwords: off")
 433             self.message("Password history length: %d" % pwd_hist_len)
 434             self.message("Minimum password length: %d" % cur_min_pwd_len)
 435             self.message("Minimum password age (days): %d" % cur_min_pwd_age)
 436             self.message("Maximum password age (days): %d" % cur_max_pwd_age)
 437         elif subcommand == "set":
 438             msgs = []
 439             m = ldb.Message()
 440             m.dn = ldb.Dn(samdb, domain_dn)
 441
 442             if complexity is not None:
 443                 if complexity == "on" or complexity == "default":
 444                     pwd_props = pwd_props | DOMAIN_PASSWORD_COMPLEX
 445                     msgs.append("Password complexity activated!")
 446                 elif complexity == "off":
 447                     pwd_props = pwd_props & (~DOMAIN_PASSWORD_COMPLEX)
 448                     msgs.append("Password complexity deactivated!")
 449
 450             if store_plaintext is not None:
 451                 if store_plaintext == "on" or store_plaintext == "default":
 452                     pwd_props = pwd_props | DOMAIN_PASSWORD_STORE_CLEARTEXT
 453                     msgs.append("Plaintext password storage for changed passwords activated!")
 454                 elif store_plaintext == "off":
 455                     pwd_props = pwd_props & (~DOMAIN_PASSWORD_STORE_CLEARTEXT)
 456                     msgs.append("Plaintext password storage for changed passwords deactivated!")
 457
 458             if complexity is not None or store_plaintext is not None:
 459                 m["pwdProperties"] = ldb.MessageElement(str(pwd_props),
 460                   ldb.FLAG_MOD_REPLACE, "pwdProperties")
 461
 462             if history_length is not None:
 463                 if history_length == "default":
 464                     pwd_hist_len = 24
 465                 else:
 466                     pwd_hist_len = int(history_length)
 467
 468                 if pwd_hist_len < 0 or pwd_hist_len > 24:
 469                     raise CommandError("Password history length must be in the range of 0 to 24!")
 470
 471                 m["pwdHistoryLength"] = ldb.MessageElement(str(pwd_hist_len),
 472                   ldb.FLAG_MOD_REPLACE, "pwdHistoryLength")
 473                 msgs.append("Password history length changed!")
 474
 475             if min_pwd_length is not None:
 476                 if min_pwd_length == "default":
 477                     min_pwd_len = 7
 478                 else:
 479                     min_pwd_len = int(min_pwd_length)
 480
 481                 if min_pwd_len < 0 or min_pwd_len > 14:
 482                     raise CommandError("Minimum password length must be in the range of 0 to 14!")
 483
 484                 m["minPwdLength"] = ldb.MessageElement(str(min_pwd_len),
 485                   ldb.FLAG_MOD_REPLACE, "minPwdLength")
 486                 msgs.append("Minimum password length changed!")
 487
 488             if min_pwd_age is not None:
 489                 if min_pwd_age == "default":
 490                     min_pwd_age = 1
 491                 else:
 492                     min_pwd_age = int(min_pwd_age)
 493
 494                 if min_pwd_age < 0 or min_pwd_age > 998:
 495                     raise CommandError("Minimum password age must be in the range of 0 to 998!")
 496
 497                 # days -> ticks
 498                 min_pwd_age_ticks = -int(min_pwd_age * (24 * 60 * 60 * 1e7))
 499
 500                 m["minPwdAge"] = ldb.MessageElement(str(min_pwd_age_ticks),
 501                   ldb.FLAG_MOD_REPLACE, "minPwdAge")
 502                 msgs.append("Minimum password age changed!")
 503
 504             if max_pwd_age is not None:
 505                 if max_pwd_age == "default":
 506                     max_pwd_age = 43
 507                 else:
 508                     max_pwd_age = int(max_pwd_age)
 509
 510                 if max_pwd_age < 0 or max_pwd_age > 999:
 511                     raise CommandError("Maximum password age must be in the range of 0 to 999!")
 512
 513                 # days -> ticks
 514                 max_pwd_age_ticks = -int(max_pwd_age * (24 * 60 * 60 * 1e7))
 515
 516                 m["maxPwdAge"] = ldb.MessageElement(str(max_pwd_age_ticks),
 517                   ldb.FLAG_MOD_REPLACE, "maxPwdAge")
 518                 msgs.append("Maximum password age changed!")
 519
 520             if max_pwd_age > 0 and min_pwd_age >= max_pwd_age:
 521                 raise CommandError("Maximum password age (%d) must be greater than minimum password age (%d)!" % (max_pwd_age, min_pwd_age))
 522
 523             if len(m) == 0:
 524                 raise CommandError("You must specify at least one option to set. Try --help")
 525             samdb.modify(m)
 526             msgs.append("All changes applied successfully!")
 527             self.message("\n".join(msgs))
 528         else:
 529             raise CommandError("Wrong argument '%s'!" % subcommand)
 530
 531
 532 class cmd_domain_samba3upgrade(Command):
 533     """Upgrade from Samba3 database to Samba4 AD database"""
 534
 535     synopsis = "%prog domain samba3upgrade [options] <samba3_smb_conf>"
 536
 537     long_description = """Specify either samba3 database directory (with --libdir) or
 538 samba3 testparm utility (with --testparm)."""
 539
 540     takes_optiongroups = {
 541         "sambaopts": options.SambaOptions,
 542         "versionopts": options.VersionOptions
 543     }
 544
 545     takes_options = [
 546         Option("--libdir", type="string", metavar="DIR",
 547                   help="Path to samba3 database directory"),
 548         Option("--testparm", type="string", metavar="PATH",
 549                   help="Path to samba3 testparm utility"),
 550         Option("--targetdir", type="string", metavar="DIR",
 551                   help="Path prefix where the new Samba 4.0 AD domain should be initialised"),
 552         Option("--quiet", help="Be quiet"),
 553         Option("--use-xattrs", type="choice", choices=["yes","no","auto"], metavar="[yes|no|auto]",
 554                    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"),
 555     ]
 556
 557     takes_args = ["smbconf"]
 558
 559     def run(self, smbconf=None, targetdir=None, libdir=None, testparm=None,
 560             quiet=None, use_xattrs=None, sambaopts=None, versionopts=None):
 561
 562         if not os.path.exists(smbconf):
 563             raise CommandError("File %s does not exist" % smbconf)
 564
 565         if testparm and not os.path.exists(testparm):
 566             raise CommandError("Testparm utility %s does not exist" % testparm)
 567
 568         if libdir and not os.path.exists(libdir):
 569             raise CommandError("Directory %s does not exist" % libdir)
 570
 571         if not libdir and not testparm:
 572             raise CommandError("Please specify either libdir or testparm")
 573
 574         if libdir and testparm:
 575             self.outf.write("warning: both libdir and testparm specified, ignoring libdir.\n")
 576             libdir = None
 577
 578         logger = logging.getLogger("upgrade")
 579         logger.addHandler(logging.StreamHandler(sys.stdout))
 580         if quiet:
 581             logger.setLevel(logging.WARNING)
 582         else:
 583             logger.setLevel(logging.INFO)
 584
 585         lp = sambaopts.get_loadparm()
 586
 587         s3conf = s3param.get_context()
 588
 589         if sambaopts.realm:
 590             s3conf.set("realm", sambaopts.realm)
 591
 592         eadb = True
 593         if use_xattrs == "yes":
 594             eadb = False
 595         elif use_xattrs == "auto" and not s3conf.get("posix:eadb"):
 596             tmpfile = tempfile.NamedTemporaryFile()
 597             try:
 598                 samba.ntacls.setntacl(lp, tmpfile.name,
 599                             "O:S-1-5-32G:S-1-5-32", "S-1-5-32", "native")
 600                 eadb = False
 601             except:
 602                 # FIXME: Don't catch all exceptions here
 603                 logger.info("You are not root or your system do not support xattr, using tdb backend for attributes. "
 604                             "If you intend to use this provision in production, rerun the script as root on a system supporting xattrs.")
 605             tmpfile.close()
 606
 607         # Set correct default values from libdir or testparm
 608         paths = {}
 609         if libdir:
 610             paths["state directory"] = libdir
 611             paths["private dir"] = libdir
 612             paths["lock directory"] = libdir
 613         else:
 614             paths["state directory"] = get_testparm_var(testparm, smbconf, "state directory")
 615             paths["private dir"] = get_testparm_var(testparm, smbconf, "private dir")
 616             paths["lock directory"] = get_testparm_var(testparm, smbconf, "lock directory")
 617
 618         for p in paths:
 619             s3conf.set(p, paths[p])
 620
 621         # load smb.conf parameters
 622         logger.info("Reading smb.conf")
 623         s3conf.load(smbconf)
 624         samba3 = Samba3(smbconf, s3conf)
 625
 626         logger.info("Provisioning")
 627         upgrade_from_samba3(samba3, logger, targetdir, session_info=system_session(),
 628                             useeadb=eadb)
 629
 630
 631 class cmd_domain(SuperCommand):
 632     """Domain management"""
 633
 634     subcommands = {}
 635     subcommands["exportkeytab"] = cmd_domain_export_keytab()
 636     subcommands["join"] = cmd_domain_join()
 637     subcommands["level"] = cmd_domain_level()
 638     subcommands["machinepassword"] = cmd_domain_machinepassword()
 639     subcommands["passwordsettings"] = cmd_domain_passwordsettings()
 640     subcommands["samba3upgrade"] = cmd_domain_samba3upgrade()