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 os
  29 import tempfile
  30 import logging
  31 from samba import Ldb
  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.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.netcmd.common import netcmd_get_domain_infos_via_cldap
  45 from samba.samba3 import Samba3
  46 from samba.samba3 import param as s3param
  47 from samba.upgrade import upgrade_from_samba3
  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
  63 class cmd_domain_export_keytab(Command):
  64     """Dumps kerberos keys of the domain into a keytab"""
  65
  66     synopsis = "%prog <keytab> [options]"
  67
  68     takes_options = [
  69         ]
  70
  71     takes_args = ["keytab"]
  72
  73     def run(self, keytab, credopts=None, sambaopts=None, versionopts=None):
  74         lp = sambaopts.get_loadparm()
  75         net = Net(None, lp, server=credopts.ipaddress)
  76         net.export_keytab(keytab=keytab)
  77
  78 class cmd_domain_info(Command):
  79     """Print basic info about a domain and the DC passed as parameter"""
  80
  81     synopsis = "%prog domain info <ip_address> [options]"
  82
  83     takes_options = [
  84         ]
  85
  86     takes_args = ["address"]
  87
  88     def run(self, address, credopts=None, sambaopts=None, versionopts=None):
  89         lp = sambaopts.get_loadparm()
  90         try:
  91             res = netcmd_get_domain_infos_via_cldap(lp, None, address)
  92             print "Forest           : %s" % res.forest
  93             print "Domain           : %s" % res.dns_domain
  94             print "Netbios domain   : %s" % res.domain_name
  95             print "DC name          : %s" % res.pdc_dns_name
  96             print "DC netbios name  : %s" % res.pdc_name
  97             print "Server site      : %s" % res.server_site
  98             print "Client site      : %s" % res.client_site
  99         except RuntimeError:
 100             raise CommandError("Invalid IP address '" + address + "'!")
 101
 102
 103
 104 class cmd_domain_join(Command):
 105     """Joins domain as either member or backup domain controller"""
 106
 107     synopsis = "%prog <dnsdomain> [DC|RODC|MEMBER|SUBDOMAIN] [options]"
 108
 109     takes_options = [
 110         Option("--server", help="DC to join", type=str),
 111         Option("--site", help="site to join", type=str),
 112         Option("--targetdir", help="where to store provision", type=str),
 113         Option("--parent-domain", help="parent domain to create subdomain under", type=str),
 114         Option("--domain-critical-only",
 115                help="only replicate critical domain objects",
 116                action="store_true"),
 117         ]
 118
 119     takes_args = ["domain", "role?"]
 120
 121     def run(self, domain, role=None, sambaopts=None, credopts=None,
 122             versionopts=None, server=None, site=None, targetdir=None,
 123             domain_critical_only=False, parent_domain=None):
 124         lp = sambaopts.get_loadparm()
 125         creds = credopts.get_credentials(lp)
 126         net = Net(creds, lp, server=credopts.ipaddress)
 127
 128         if site is None:
 129             site = "Default-First-Site-Name"
 130
 131         netbios_name = lp.get("netbios name")
 132
 133         if not role is None:
 134             role = role.upper()
 135
 136         if role is None or role == "MEMBER":
 137             (join_password, sid, domain_name) = net.join_member(domain,
 138                                                                 netbios_name,
 139                                                                 LIBNET_JOIN_AUTOMATIC)
 140
 141             self.outf.write("Joined domain %s (%s)\n" % (domain_name, sid))
 142             return
 143         elif role == "DC":
 144             join_DC(server=server, creds=creds, lp=lp, domain=domain,
 145                     site=site, netbios_name=netbios_name, targetdir=targetdir,
 146                     domain_critical_only=domain_critical_only)
 147             return
 148         elif role == "RODC":
 149             join_RODC(server=server, creds=creds, lp=lp, domain=domain,
 150                       site=site, netbios_name=netbios_name, targetdir=targetdir,
 151                       domain_critical_only=domain_critical_only)
 152             return
 153         elif role == "SUBDOMAIN":
 154             netbios_domain = lp.get("workgroup")
 155             if parent_domain is None:
 156                 parent_domain = ".".join(domain.split(".")[1:])
 157             join_subdomain(server=server, creds=creds, lp=lp, dnsdomain=domain, parent_domain=parent_domain,
 158                            site=site, netbios_name=netbios_name, netbios_domain=netbios_domain, targetdir=targetdir)
 159             return
 160         else:
 161             raise CommandError("Invalid role '%s' (possible values: MEMBER, DC, RODC, SUBDOMAIN)" % role)
 162
 163
 164
 165 class cmd_domain_level(Command):
 166     """Raises domain and forest function levels"""
 167
 168     synopsis = "%prog (show|raise <options>) [options]"
 169
 170     takes_options = [
 171         Option("-H", "--URL", help="LDB URL for database or target server", type=str,
 172                metavar="URL", dest="H"),
 173         Option("--quiet", help="Be quiet", action="store_true"),
 174         Option("--forest-level", type="choice", choices=["2003", "2008", "2008_R2"],
 175             help="The forest function level (2003 | 2008 | 2008_R2)"),
 176         Option("--domain-level", type="choice", choices=["2003", "2008", "2008_R2"],
 177             help="The domain function level (2003 | 2008 | 2008_R2)")
 178             ]
 179
 180     takes_args = ["subcommand"]
 181
 182     def run(self, subcommand, H=None, forest_level=None, domain_level=None,
 183             quiet=False, credopts=None, sambaopts=None, versionopts=None):
 184         lp = sambaopts.get_loadparm()
 185         creds = credopts.get_credentials(lp, fallback_machine=True)
 186
 187         samdb = SamDB(url=H, session_info=system_session(),
 188             credentials=creds, lp=lp)
 189
 190         domain_dn = samdb.domain_dn()
 191
 192         res_forest = samdb.search("CN=Partitions,%s" % samdb.get_config_basedn(),
 193           scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
 194         assert len(res_forest) == 1
 195
 196         res_domain = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
 197           attrs=["msDS-Behavior-Version", "nTMixedDomain"])
 198         assert len(res_domain) == 1
 199
 200         res_dc_s = samdb.search("CN=Sites,%s" % samdb.get_config_basedn(),
 201           scope=ldb.SCOPE_SUBTREE, expression="(objectClass=nTDSDSA)",
 202           attrs=["msDS-Behavior-Version"])
 203         assert len(res_dc_s) >= 1
 204
 205         try:
 206             level_forest = int(res_forest[0]["msDS-Behavior-Version"][0])
 207             level_domain = int(res_domain[0]["msDS-Behavior-Version"][0])
 208             level_domain_mixed = int(res_domain[0]["nTMixedDomain"][0])
 209
 210             min_level_dc = int(res_dc_s[0]["msDS-Behavior-Version"][0]) # Init value
 211             for msg in res_dc_s:
 212                 if int(msg["msDS-Behavior-Version"][0]) < min_level_dc:
 213                     min_level_dc = int(msg["msDS-Behavior-Version"][0])
 214
 215             if level_forest < 0 or level_domain < 0:
 216                 raise CommandError("Domain and/or forest function level(s) is/are invalid. Correct them or reprovision!")
 217             if min_level_dc < 0:
 218                 raise CommandError("Lowest function level of a DC is invalid. Correct this or reprovision!")
 219             if level_forest > level_domain:
 220                 raise CommandError("Forest function level is higher than the domain level(s). Correct this or reprovision!")
 221             if level_domain > min_level_dc:
 222                 raise CommandError("Domain function level is higher than the lowest function level of a DC. Correct this or reprovision!")
 223
 224         except KeyError:
 225             raise CommandError("Could not retrieve the actual domain, forest level and/or lowest DC function level!")
 226
 227         if subcommand == "show":
 228             self.message("Domain and forest function level for domain '%s'" % domain_dn)
 229             if level_forest == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 230                 self.message("\nATTENTION: You run SAMBA 4 on a forest function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
 231             if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 232                 self.message("\nATTENTION: You run SAMBA 4 on a domain function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
 233             if min_level_dc == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 234                 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)!")
 235
 236             self.message("")
 237
 238             if level_forest == DS_DOMAIN_FUNCTION_2000:
 239                 outstr = "2000"
 240             elif level_forest == DS_DOMAIN_FUNCTION_2003_MIXED:
 241                 outstr = "2003 with mixed domains/interim (NT4 DC support)"
 242             elif level_forest == DS_DOMAIN_FUNCTION_2003:
 243                 outstr = "2003"
 244             elif level_forest == DS_DOMAIN_FUNCTION_2008:
 245                 outstr = "2008"
 246             elif level_forest == DS_DOMAIN_FUNCTION_2008_R2:
 247                 outstr = "2008 R2"
 248             else:
 249                 outstr = "higher than 2008 R2"
 250             self.message("Forest function level: (Windows) " + outstr)
 251
 252             if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 253                 outstr = "2000 mixed (NT4 DC support)"
 254             elif level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed == 0:
 255                 outstr = "2000"
 256             elif level_domain == DS_DOMAIN_FUNCTION_2003_MIXED:
 257                 outstr = "2003 with mixed domains/interim (NT4 DC support)"
 258             elif level_domain == DS_DOMAIN_FUNCTION_2003:
 259                 outstr = "2003"
 260             elif level_domain == DS_DOMAIN_FUNCTION_2008:
 261                 outstr = "2008"
 262             elif level_domain == DS_DOMAIN_FUNCTION_2008_R2:
 263                 outstr = "2008 R2"
 264             else:
 265                 outstr = "higher than 2008 R2"
 266             self.message("Domain function level: (Windows) " + outstr)
 267
 268             if min_level_dc == DS_DOMAIN_FUNCTION_2000:
 269                 outstr = "2000"
 270             elif min_level_dc == DS_DOMAIN_FUNCTION_2003:
 271                 outstr = "2003"
 272             elif min_level_dc == DS_DOMAIN_FUNCTION_2008:
 273                 outstr = "2008"
 274             elif min_level_dc == DS_DOMAIN_FUNCTION_2008_R2:
 275                 outstr = "2008 R2"
 276             else:
 277                 outstr = "higher than 2008 R2"
 278             self.message("Lowest function level of a DC: (Windows) " + outstr)
 279
 280         elif subcommand == "raise":
 281             msgs = []
 282
 283             if domain_level is not None:
 284                 if domain_level == "2003":
 285                     new_level_domain = DS_DOMAIN_FUNCTION_2003
 286                 elif domain_level == "2008":
 287                     new_level_domain = DS_DOMAIN_FUNCTION_2008
 288                 elif domain_level == "2008_R2":
 289                     new_level_domain = DS_DOMAIN_FUNCTION_2008_R2
 290
 291                 if new_level_domain <= level_domain and level_domain_mixed == 0:
 292                     raise CommandError("Domain function level can't be smaller than or equal to the actual one!")
 293
 294                 if new_level_domain > min_level_dc:
 295                     raise CommandError("Domain function level can't be higher than the lowest function level of a DC!")
 296
 297                 # Deactivate mixed/interim domain support
 298                 if level_domain_mixed != 0:
 299                     # Directly on the base DN
 300                     m = ldb.Message()
 301                     m.dn = ldb.Dn(samdb, domain_dn)
 302                     m["nTMixedDomain"] = ldb.MessageElement("0",
 303                       ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
 304                     samdb.modify(m)
 305                     # Under partitions
 306                     m = ldb.Message()
 307                     m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup") + ",CN=Partitions,%s" % ldb.get_config_basedn())
 308                     m["nTMixedDomain"] = ldb.MessageElement("0",
 309                       ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
 310                     try:
 311                         samdb.modify(m)
 312                     except ldb.LdbError, (enum, emsg):
 313                         if enum != ldb.ERR_UNWILLING_TO_PERFORM:
 314                             raise
 315
 316                 # Directly on the base DN
 317                 m = ldb.Message()
 318                 m.dn = ldb.Dn(samdb, domain_dn)
 319                 m["msDS-Behavior-Version"]= ldb.MessageElement(
 320                   str(new_level_domain), ldb.FLAG_MOD_REPLACE,
 321                             "msDS-Behavior-Version")
 322                 samdb.modify(m)
 323                 # Under partitions
 324                 m = ldb.Message()
 325                 m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup")
 326                   + ",CN=Partitions,%s" % ldb.get_config_basedn())
 327                 m["msDS-Behavior-Version"]= ldb.MessageElement(
 328                   str(new_level_domain), ldb.FLAG_MOD_REPLACE,
 329                           "msDS-Behavior-Version")
 330                 try:
 331                     samdb.modify(m)
 332                 except ldb.LdbError, (enum, emsg):
 333                     if enum != ldb.ERR_UNWILLING_TO_PERFORM:
 334                         raise
 335
 336                 level_domain = new_level_domain
 337                 msgs.append("Domain function level changed!")
 338
 339             if forest_level is not None:
 340                 if forest_level == "2003":
 341                     new_level_forest = DS_DOMAIN_FUNCTION_2003
 342                 elif forest_level == "2008":
 343                     new_level_forest = DS_DOMAIN_FUNCTION_2008
 344                 elif forest_level == "2008_R2":
 345                     new_level_forest = DS_DOMAIN_FUNCTION_2008_R2
 346                 if new_level_forest <= level_forest:
 347                     raise CommandError("Forest function level can't be smaller than or equal to the actual one!")
 348                 if new_level_forest > level_domain:
 349                     raise CommandError("Forest function level can't be higher than the domain function level(s). Please raise it/them first!")
 350                 m = ldb.Message()
 351                 m.dn = ldb.Dn(samdb, "CN=Partitions,%s" % ldb.get_config_basedn())
 352                 m["msDS-Behavior-Version"]= ldb.MessageElement(
 353                   str(new_level_forest), ldb.FLAG_MOD_REPLACE,
 354                           "msDS-Behavior-Version")
 355                 samdb.modify(m)
 356                 msgs.append("Forest function level changed!")
 357             msgs.append("All changes applied successfully!")
 358             self.message("\n".join(msgs))
 359         else:
 360             raise CommandError("invalid argument: '%s' (choose from 'show', 'raise')" % subcommand)
 361
 362
 363
 364 class cmd_domain_passwordsettings(Command):
 365     """Sets password settings
 366
 367     Password complexity, history length, minimum password length, the minimum
 368     and maximum password age) on a Samba4 server.
 369     """
 370
 371     synopsis = "%prog (show|set <options>) [options]"
 372
 373     takes_options = [
 374         Option("-H", "--URL", help="LDB URL for database or target server", type=str,
 375                metavar="URL", dest="H"),
 376         Option("--quiet", help="Be quiet", action="store_true"),
 377         Option("--complexity", type="choice", choices=["on","off","default"],
 378           help="The password complexity (on | off | default). Default is 'on'"),
 379         Option("--store-plaintext", type="choice", choices=["on","off","default"],
 380           help="Store plaintext passwords where account have 'store passwords with reversible encryption' set (on | off | default). Default is 'off'"),
 381         Option("--history-length",
 382           help="The password history length (<integer> | default).  Default is 24.", type=str),
 383         Option("--min-pwd-length",
 384           help="The minimum password length (<integer> | default).  Default is 7.", type=str),
 385         Option("--min-pwd-age",
 386           help="The minimum password age (<integer in days> | default).  Default is 1.", type=str),
 387         Option("--max-pwd-age",
 388           help="The maximum password age (<integer in days> | default).  Default is 43.", type=str),
 389           ]
 390
 391     takes_args = ["subcommand"]
 392
 393     def run(self, subcommand, H=None, min_pwd_age=None, max_pwd_age=None,
 394             quiet=False, complexity=None, store_plaintext=None, history_length=None,
 395             min_pwd_length=None, credopts=None, sambaopts=None,
 396             versionopts=None):
 397         lp = sambaopts.get_loadparm()
 398         creds = credopts.get_credentials(lp)
 399
 400         samdb = SamDB(url=H, session_info=system_session(),
 401             credentials=creds, lp=lp)
 402
 403         domain_dn = samdb.domain_dn()
 404         res = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
 405           attrs=["pwdProperties", "pwdHistoryLength", "minPwdLength",
 406                  "minPwdAge", "maxPwdAge"])
 407         assert(len(res) == 1)
 408         try:
 409             pwd_props = int(res[0]["pwdProperties"][0])
 410             pwd_hist_len = int(res[0]["pwdHistoryLength"][0])
 411             cur_min_pwd_len = int(res[0]["minPwdLength"][0])
 412             # ticks -> days
 413             cur_min_pwd_age = int(abs(int(res[0]["minPwdAge"][0])) / (1e7 * 60 * 60 * 24))
 414             if int(res[0]["maxPwdAge"][0]) == -0x8000000000000000:
 415                 cur_max_pwd_age = 0
 416             else:
 417                 cur_max_pwd_age = int(abs(int(res[0]["maxPwdAge"][0])) / (1e7 * 60 * 60 * 24))
 418         except Exception, e:
 419             raise CommandError("Could not retrieve password properties!", e)
 420
 421         if subcommand == "show":
 422             self.message("Password informations for domain '%s'" % domain_dn)
 423             self.message("")
 424             if pwd_props & DOMAIN_PASSWORD_COMPLEX != 0:
 425                 self.message("Password complexity: on")
 426             else:
 427                 self.message("Password complexity: off")
 428             if pwd_props & DOMAIN_PASSWORD_STORE_CLEARTEXT != 0:
 429                 self.message("Store plaintext passwords: on")
 430             else:
 431                 self.message("Store plaintext passwords: off")
 432             self.message("Password history length: %d" % pwd_hist_len)
 433             self.message("Minimum password length: %d" % cur_min_pwd_len)
 434             self.message("Minimum password age (days): %d" % cur_min_pwd_age)
 435             self.message("Maximum password age (days): %d" % cur_max_pwd_age)
 436         elif subcommand == "set":
 437             msgs = []
 438             m = ldb.Message()
 439             m.dn = ldb.Dn(samdb, domain_dn)
 440
 441             if complexity is not None:
 442                 if complexity == "on" or complexity == "default":
 443                     pwd_props = pwd_props | DOMAIN_PASSWORD_COMPLEX
 444                     msgs.append("Password complexity activated!")
 445                 elif complexity == "off":
 446                     pwd_props = pwd_props & (~DOMAIN_PASSWORD_COMPLEX)
 447                     msgs.append("Password complexity deactivated!")
 448
 449             if store_plaintext is not None:
 450                 if store_plaintext == "on" or store_plaintext == "default":
 451                     pwd_props = pwd_props | DOMAIN_PASSWORD_STORE_CLEARTEXT
 452                     msgs.append("Plaintext password storage for changed passwords activated!")
 453                 elif store_plaintext == "off":
 454                     pwd_props = pwd_props & (~DOMAIN_PASSWORD_STORE_CLEARTEXT)
 455                     msgs.append("Plaintext password storage for changed passwords deactivated!")
 456
 457             if complexity is not None or store_plaintext is not None:
 458                 m["pwdProperties"] = ldb.MessageElement(str(pwd_props),
 459                   ldb.FLAG_MOD_REPLACE, "pwdProperties")
 460
 461             if history_length is not None:
 462                 if history_length == "default":
 463                     pwd_hist_len = 24
 464                 else:
 465                     pwd_hist_len = int(history_length)
 466
 467                 if pwd_hist_len < 0 or pwd_hist_len > 24:
 468                     raise CommandError("Password history length must be in the range of 0 to 24!")
 469
 470                 m["pwdHistoryLength"] = ldb.MessageElement(str(pwd_hist_len),
 471                   ldb.FLAG_MOD_REPLACE, "pwdHistoryLength")
 472                 msgs.append("Password history length changed!")
 473
 474             if min_pwd_length is not None:
 475                 if min_pwd_length == "default":
 476                     min_pwd_len = 7
 477                 else:
 478                     min_pwd_len = int(min_pwd_length)
 479
 480                 if min_pwd_len < 0 or min_pwd_len > 14:
 481                     raise CommandError("Minimum password length must be in the range of 0 to 14!")
 482
 483                 m["minPwdLength"] = ldb.MessageElement(str(min_pwd_len),
 484                   ldb.FLAG_MOD_REPLACE, "minPwdLength")
 485                 msgs.append("Minimum password length changed!")
 486
 487             if min_pwd_age is not None:
 488                 if min_pwd_age == "default":
 489                     min_pwd_age = 1
 490                 else:
 491                     min_pwd_age = int(min_pwd_age)
 492
 493                 if min_pwd_age < 0 or min_pwd_age > 998:
 494                     raise CommandError("Minimum password age must be in the range of 0 to 998!")
 495
 496                 # days -> ticks
 497                 min_pwd_age_ticks = -int(min_pwd_age * (24 * 60 * 60 * 1e7))
 498
 499                 m["minPwdAge"] = ldb.MessageElement(str(min_pwd_age_ticks),
 500                   ldb.FLAG_MOD_REPLACE, "minPwdAge")
 501                 msgs.append("Minimum password age changed!")
 502
 503             if max_pwd_age is not None:
 504                 if max_pwd_age == "default":
 505                     max_pwd_age = 43
 506                 else:
 507                     max_pwd_age = int(max_pwd_age)
 508
 509                 if max_pwd_age < 0 or max_pwd_age > 999:
 510                     raise CommandError("Maximum password age must be in the range of 0 to 999!")
 511
 512                 # days -> ticks
 513                 if max_pwd_age == 0:
 514                     max_pwd_age_ticks = -0x8000000000000000
 515                 else:
 516                     max_pwd_age_ticks = -int(max_pwd_age * (24 * 60 * 60 * 1e7))
 517
 518                 m["maxPwdAge"] = ldb.MessageElement(str(max_pwd_age_ticks),
 519                   ldb.FLAG_MOD_REPLACE, "maxPwdAge")
 520                 msgs.append("Maximum password age changed!")
 521
 522             if max_pwd_age > 0 and min_pwd_age >= max_pwd_age:
 523                 raise CommandError("Maximum password age (%d) must be greater than minimum password age (%d)!" % (max_pwd_age, min_pwd_age))
 524
 525             if len(m) == 0:
 526                 raise CommandError("You must specify at least one option to set. Try --help")
 527             samdb.modify(m)
 528             msgs.append("All changes applied successfully!")
 529             self.message("\n".join(msgs))
 530         else:
 531             raise CommandError("Wrong argument '%s'!" % subcommand)
 532
 533
 534 class cmd_domain_samba3upgrade(Command):
 535     """Upgrade from Samba3 database to Samba4 AD database.
 536
 537     Specify either a directory with all samba3 databases and state files (with --dbdir) or
 538     samba3 testparm utility (with --testparm).
 539     """
 540
 541     synopsis = "%prog [options] <samba3_smb_conf>"
 542
 543     takes_optiongroups = {
 544         "sambaopts": options.SambaOptions,
 545         "versionopts": options.VersionOptions
 546     }
 547
 548     takes_options = [
 549         Option("--dbdir", type="string", metavar="DIR",
 550                   help="Path to samba3 database directory"),
 551         Option("--testparm", type="string", metavar="PATH",
 552                   help="Path to samba3 testparm utility from the previous installation.  This allows the default paths of the previous installation to be followed"),
 553         Option("--targetdir", type="string", metavar="DIR",
 554                   help="Path prefix where the new Samba 4.0 AD domain should be initialised"),
 555         Option("--quiet", help="Be quiet", action="store_true"),
 556         Option("--verbose", help="Be verbose", action="store_true"),
 557         Option("--use-xattrs", type="choice", choices=["yes","no","auto"], metavar="[yes|no|auto]",
 558                    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"),
 559     ]
 560
 561     takes_args = ["smbconf"]
 562
 563     def run(self, smbconf=None, targetdir=None, dbdir=None, testparm=None,
 564             quiet=False, verbose=False, use_xattrs=None, sambaopts=None, versionopts=None):
 565
 566         if not os.path.exists(smbconf):
 567             raise CommandError("File %s does not exist" % smbconf)
 568
 569         if testparm and not os.path.exists(testparm):
 570             raise CommandError("Testparm utility %s does not exist" % testparm)
 571
 572         if dbdir and not os.path.exists(dbdir):
 573             raise CommandError("Directory %s does not exist" % dbdir)
 574
 575         if not dbdir and not testparm:
 576             raise CommandError("Please specify either dbdir or testparm")
 577
 578         logger = self.get_logger()
 579         if verbose:
 580             logger.setLevel(logging.DEBUG)
 581         elif quiet:
 582             logger.setLevel(logging.WARNING)
 583         else:
 584             logger.setLevel(logging.INFO)
 585
 586         if dbdir and testparm:
 587             logger.warning("both dbdir and testparm specified, ignoring dbdir.")
 588             dbdir = None
 589
 590         lp = sambaopts.get_loadparm()
 591
 592         s3conf = s3param.get_context()
 593
 594         if sambaopts.realm:
 595             s3conf.set("realm", sambaopts.realm)
 596
 597         eadb = True
 598         if use_xattrs == "yes":
 599             eadb = False
 600         elif use_xattrs == "auto" and not s3conf.get("posix:eadb"):
 601             if targetdir:
 602                 tmpfile = tempfile.NamedTemporaryFile(prefix=os.path.abspath(targetdir))
 603             else:
 604                 tmpfile = tempfile.NamedTemporaryFile(prefix=os.path.abspath(os.path.dirname(lp.get("private dir"))))
 605             try:
 606                 samba.ntacls.setntacl(lp, tmpfile.name,
 607                             "O:S-1-5-32G:S-1-5-32", "S-1-5-32", "native")
 608                 eadb = False
 609             except:
 610                 # FIXME: Don't catch all exceptions here
 611                 logger.info("You are not root or your system do not support xattr, using tdb backend for attributes. "
 612                             "If you intend to use this provision in production, rerun the script as root on a system supporting xattrs.")
 613             tmpfile.close()
 614
 615         # Set correct default values from dbdir or testparm
 616         paths = {}
 617         if dbdir:
 618             paths["state directory"] = dbdir
 619             paths["private dir"] = dbdir
 620             paths["lock directory"] = dbdir
 621         else:
 622             paths["state directory"] = get_testparm_var(testparm, smbconf, "state directory")
 623             paths["private dir"] = get_testparm_var(testparm, smbconf, "private dir")
 624             paths["lock directory"] = get_testparm_var(testparm, smbconf, "lock directory")
 625             # "testparm" from Samba 3 < 3.4.x is not aware of the parameter
 626             # "state directory", instead make use of "lock directory"
 627             if len(paths["state directory"]) == 0:
 628                 paths["state directory"] = paths["lock directory"]
 629
 630         for p in paths:
 631             s3conf.set(p, paths[p])
 632
 633         # load smb.conf parameters
 634         logger.info("Reading smb.conf")
 635         s3conf.load(smbconf)
 636         samba3 = Samba3(smbconf, s3conf)
 637
 638         logger.info("Provisioning")
 639         upgrade_from_samba3(samba3, logger, targetdir, session_info=system_session(),
 640                             useeadb=eadb)
 641
 642 class cmd_domain(SuperCommand):
 643     """Domain management"""
 644
 645     subcommands = {}
 646     subcommands["exportkeytab"] = cmd_domain_export_keytab()
 647     subcommands["info"] = cmd_domain_info()
 648     subcommands["join"] = cmd_domain_join()
 649     subcommands["level"] = cmd_domain_level()
 650     subcommands["passwordsettings"] = cmd_domain_passwordsettings()
 651     subcommands["samba3upgrade"] = cmd_domain_samba3upgrade()