source/scripting/libjs/provision.js

   1 /*
   2         backend code for provisioning a Samba4 server
   3         Copyright Andrew Tridgell 2005
   4         Released under the GNU GPL v2 or later
   5 */
   6
   7 sys = sys_init();
   8
   9 /*
  10   return true if the current install seems to be OK
  11 */
  12 function install_ok(session_info, credentials)
  13 {
  14         var lp = loadparm_init();
  15         var ldb = ldb_init();
  16         ldb.session_info = session_info;
  17         ldb.credentials = credentials;
  18         if (lp.get("realm") == "") {
  19                 return false;
  20         }
  21         var ok = ldb.connect(lp.get("sam database"));
  22         if (!ok) {
  23                 return false;
  24         }
  25         var res = ldb.search("(cn=Administrator)");
  26         if (res.length != 1) {
  27                 return false;
  28         }
  29         return true;
  30 }
  31
  32 /*
  33   find a user or group from a list of possibilities
  34 */
  35 function findnss()
  36 {
  37         var i;
  38         assert(arguments.length >= 2);
  39         var nssfn = arguments[0];
  40         for (i=1;i<arguments.length;i++) {
  41                 if (nssfn(arguments[i]) != undefined) {
  42                         return arguments[i];
  43                 }
  44         }
  45         printf("Unable to find user/group for %s\n", arguments[1]);
  46         assert(i<arguments.length);
  47 }
  48
  49 /*
  50    add a foreign security principle
  51  */
  52 function add_foreign(ldb, subobj, sid, desc)
  53 {
  54         var add = sprintf("
  55 dn: CN=%s,CN=ForeignSecurityPrincipals,%s
  56 objectClass: top
  57 objectClass: foreignSecurityPrincipal
  58 description: %s
  59 ",
  60                           sid, subobj.DOMAINDN, desc);
  61         /* deliberately ignore errors from this, as the records may
  62            already exist */
  63         ldb.add(add);
  64 }
  65
  66
  67 /*
  68   setup a mapping between a sam name and a unix name
  69  */
  70 function setup_name_mapping(info, ldb, sid, unixname)
  71 {
  72         var attrs = new Array("dn");
  73         var res = ldb.search(sprintf("objectSid=%s", sid),
  74                              info.subobj.DOMAINDN, ldb.SCOPE_SUBTREE, attrs);
  75         if (res.length != 1) {
  76                 info.message("Failed to find record for objectSid %s\n", sid);
  77                 return false;
  78         }
  79         var mod = sprintf("
  80 dn: %s
  81 changetype: modify
  82 replace: unixName
  83 unixName: %s
  84 ",
  85                           res[0].dn, unixname);
  86         var ok = ldb.modify(mod);
  87         if (!ok) {
  88                 info.message("name mapping for %s failed - %s\n",
  89                              sid, ldb.errstring());
  90                 return false;
  91         }
  92         return true;
  93 }
  94
  95 /*
  96   return current time as a nt time string
  97 */
  98 function nttime()
  99 {
 100         return "" + sys.nttime();
 101 }
 102
 103 /*
 104   return current time as a ldap time string
 105 */
 106 function ldaptime()
 107 {
 108         return sys.ldaptime(sys.nttime());
 109 }
 110
 111 /*
 112   return a date string suitable for a dns zone serial number
 113 */
 114 function datestring()
 115 {
 116         var t = sys.ntgmtime(sys.nttime());
 117         return sprintf("%04u%02u%02u%02u",
 118                        t.tm_year+1900, t.tm_mon+1, t.tm_mday, t.tm_hour);
 119 }
 120
 121 /*
 122   return first host IP
 123 */
 124 function hostip()
 125 {
 126         var list = sys.interfaces();
 127         return list[0];
 128 }
 129
 130
 131 /*
 132   return first part of hostname
 133 */
 134 function hostname()
 135 {
 136         var s = split(".", sys.hostname());
 137         return s[0];
 138 }
 139
 140 /* the ldb is in bad shape, possibly due to being built from an
 141    incompatible previous version of the code, so delete it
 142    completely */
 143 function ldb_delete(ldb)
 144 {
 145         println("Deleting " + ldb.filename);
 146         var lp = loadparm_init();
 147         sys.unlink(sprintf("%s/%s", lp.get("private dir"), ldb.filename));
 148         ldb.transaction_cancel();
 149         ldb.close();
 150         var ok = ldb.connect(ldb.filename);
 151         ldb.transaction_start();
 152         assert(ok);
 153 }
 154
 155 /*
 156   erase an ldb, removing all records
 157 */
 158 function ldb_erase(ldb)
 159 {
 160         var res;
 161
 162         /* delete the specials */
 163         ldb.del("@INDEXLIST");
 164         ldb.del("@ATTRIBUTES");
 165         ldb.del("@SUBCLASSES");
 166         ldb.del("@MODULES");
 167         ldb.del("@PARTITION");
 168         ldb.del("@KLUDGEACL");
 169
 170         /* and the rest */
 171         attrs = new Array("dn");
 172         var basedn = "";
 173         var res = ldb.search("(&(|(objectclass=*)(dn=*))(!(dn=@BASEINFO)))", basedn, ldb.SCOPE_SUBTREE, attrs);
 174         var i;
 175         if (typeof(res) == "undefined") {
 176                 ldb_delete(ldb);
 177                 return;
 178         }
 179         for (i=0;i<res.length;i++) {
 180                 ldb.del(res[i].dn);
 181         }
 182
 183         var res = ldb.search("(&(|(objectclass=*)(dn=*))(!(dn=@BASEINFO)))", basedn, ldb.SCOPE_SUBTREE, attrs);
 184         if (res.length != 0) {
 185                 ldb_delete(ldb);
 186                 return;
 187         }
 188         assert(res.length == 0);
 189 }
 190
 191 /*
 192   erase an ldb, removing all records
 193 */
 194 function ldb_erase_partitions(info, ldb, ldapbackend)
 195 {
 196         var rootDSE_attrs = new Array("namingContexts");
 197         var lp = loadparm_init();
 198         var j;
 199
 200         var res = ldb.search("(objectClass=*)", "", ldb.SCOPE_BASE, rootDSE_attrs);
 201         assert(typeof(res) != "undefined");
 202         assert(res.length == 1);
 203         if (typeof(res[0].namingContexts) == "undefined") {
 204                 return;
 205         }
 206         for (j=0; j<res[0].namingContexts.length; j++) {
 207                 var anything = "(|(objectclass=*)(dn=*))";
 208                 var attrs = new Array("dn");
 209                 var basedn = res[0].namingContexts[j];
 210                 var k;
 211                 var previous_remaining = 1;
 212                 var current_remaining = 0;
 213
 214                 if (ldapbackend && (basedn == info.subobj.DOMAINDN)) {
 215                         /* Only delete objects that were created by provision */
 216                         anything = "(objectcategory=*)";
 217                 }
 218
 219                 for (k=0; k < 10 && (previous_remaining != current_remaining); k++) {
 220                         /* and the rest */
 221                         var res2 = ldb.search(anything, basedn, ldb.SCOPE_SUBTREE, attrs);
 222                         var i;
 223                         if (typeof(res2) == "undefined") {
 224                                 info.message("ldb search failed: " + ldb.errstring() + "\n");
 225                                 continue;
 226                         }
 227                         previous_remaining = current_remaining;
 228                         current_remaining = res2.length;
 229                         for (i=0;i<res2.length;i++) {
 230                                 ldb.del(res2[i].dn);
 231                         }
 232
 233                         var res3 = ldb.search(anything, basedn, ldb.SCOPE_SUBTREE, attrs);
 234                         if (typeof(res3) == "undefined") {
 235                                 info.message("ldb search failed: " + ldb.errstring() + "\n");
 236                                 continue;
 237                         }
 238                         if (res3.length != 0) {
 239                                 info.message("Failed to delete all records under " + basedn + ", " + res3.length + " records remaining\n");
 240                         }
 241                 }
 242         }
 243 }
 244
 245 function open_ldb(info, dbname, erase)
 246 {
 247         var ldb = ldb_init();
 248         ldb.session_info = info.session_info;
 249         ldb.credentials = info.credentials;
 250         ldb.filename = dbname;
 251
 252         var connect_ok = ldb.connect(dbname);
 253         if (!connect_ok) {
 254                 var lp = loadparm_init();
 255                 sys.unlink(sprintf("%s/%s", lp.get("private dir"), dbname));
 256                 connect_ok = ldb.connect(dbname);
 257                 assert(connect_ok);
 258         }
 259
 260         ldb.transaction_start();
 261
 262         if (erase) {
 263                 ldb_erase(ldb);
 264         }
 265         return ldb;
 266 }
 267
 268
 269 /*
 270   setup a ldb in the private dir
 271  */
 272 function setup_add_ldif(ldif, info, ldb, failok)
 273 {
 274         var lp = loadparm_init();
 275         var src = lp.get("setup directory") + "/" + ldif;
 276
 277         var data = sys.file_load(src);
 278         data = substitute_var(data, info.subobj);
 279
 280         var add_ok = ldb.add(data);
 281         if (!add_ok) {
 282                 info.message("ldb load failed: " + ldb.errstring() + "\n");
 283                 if (!failok) {
 284                         assert(add_ok);
 285                 }
 286         }
 287         return add_ok;
 288 }
 289
 290 function setup_modify_ldif(ldif, info, ldb, failok)
 291 {
 292         var lp = loadparm_init();
 293         var src = lp.get("setup directory") + "/" + ldif;
 294
 295         var data = sys.file_load(src);
 296         data = substitute_var(data, info.subobj);
 297
 298         var mod_ok = ldb.modify(data);
 299         if (!mod_ok) {
 300                 info.message("ldb load failed: " + ldb.errstring() + "\n");
 301                 if (!failok) {
 302                         assert(mod_ok);
 303                 }
 304         }
 305         return mod_ok;
 306 }
 307
 308
 309 function setup_ldb(ldif, info, dbname)
 310 {
 311         var erase = true;
 312         var failok = false;
 313
 314         if (arguments.length >= 4) {
 315                 erase = arguments[3];
 316         }
 317         if (arguments.length == 5) {
 318                 failok = arguments[4];
 319         }
 320         var ldb = open_ldb(info, dbname, erase);
 321         if (setup_add_ldif(ldif, info, ldb, failok)) {
 322                 var commit_ok = ldb.transaction_commit();
 323                 if (!commit_ok) {
 324                         info.message("ldb commit failed: " + ldb.errstring() + "\n");
 325                         assert(commit_ok);
 326                 }
 327         }
 328 }
 329
 330 /*
 331   setup a ldb in the private dir
 332  */
 333 function setup_ldb_modify(ldif, info, ldb)
 334 {
 335         var lp = loadparm_init();
 336
 337         var src = lp.get("setup directory") + "/" + ldif;
 338
 339         var data = sys.file_load(src);
 340         data = substitute_var(data, info.subobj);
 341
 342         var mod_ok = ldb.modify(data);
 343         if (!mod_ok) {
 344                 info.message("ldb load failed: " + ldb.errstring() + "\n");
 345                 return mod_ok;
 346         }
 347         return mod_ok;
 348 }
 349
 350 /*
 351   setup a file in the private dir
 352  */
 353 function setup_file(template, message, fname, subobj)
 354 {
 355         var lp = loadparm_init();
 356         var f = fname;
 357         var src = lp.get("setup directory") + "/" + template;
 358
 359         sys.unlink(f);
 360
 361         var data = sys.file_load(src);
 362         data = substitute_var(data, subobj);
 363
 364         ok = sys.file_save(f, data);
 365         if (!ok) {
 366                 message("failed to create file: " + f + "\n");
 367                 assert(ok);
 368         }
 369 }
 370
 371 function provision_default_paths(subobj)
 372 {
 373         var lp = loadparm_init();
 374         var paths = new Object();
 375         paths.smbconf = lp.get("config file");
 376         paths.shareconf = lp.get("private dir") + "/" + "share.ldb";
 377         paths.hklm = "hklm.ldb";
 378         paths.hkcu = "hkcu.ldb";
 379         paths.hkcr = "hkcr.ldb";
 380         paths.hku = "hku.ldb";
 381         paths.hkpd = "hkpd.ldb";
 382         paths.hkpt = "hkpt.ldb";
 383         paths.samdb = lp.get("sam database");
 384         paths.secrets = lp.get("secrets database");
 385         paths.keytab = "secrets.keytab";
 386         paths.dns = lp.get("private dir") + "/" + subobj.DNSDOMAIN + ".zone";
 387         paths.winsdb = "wins.ldb";
 388         paths.ldap_basedn_ldif = lp.get("private dir") + "/" + subobj.DNSDOMAIN + ".ldif";
 389         return paths;
 390 }
 391
 392
 393 /*
 394   setup reasonable name mappings for sam names to unix names
 395 */
 396 function setup_name_mappings(info, ldb)
 397 {
 398         var lp = loadparm_init();
 399         var attrs = new Array("objectSid");
 400         var subobj = info.subobj;
 401
 402         res = ldb.search("objectSid=*", subobj.DOMAINDN, ldb.SCOPE_BASE, attrs);
 403         assert(res.length == 1 && res[0].objectSid != undefined);
 404         var sid = res[0].objectSid;
 405
 406         /* add some foreign sids if they are not present already */
 407         add_foreign(ldb, subobj, "S-1-5-7",  "Anonymous");
 408         add_foreign(ldb, subobj, "S-1-1-0",  "World");
 409         add_foreign(ldb, subobj, "S-1-5-2",  "Network");
 410         add_foreign(ldb, subobj, "S-1-5-18", "System");
 411         add_foreign(ldb, subobj, "S-1-5-11", "Authenticated Users");
 412
 413         /* some well known sids */
 414         setup_name_mapping(info, ldb, "S-1-5-7",  subobj.NOBODY);
 415         setup_name_mapping(info, ldb, "S-1-1-0",  subobj.NOGROUP);
 416         setup_name_mapping(info, ldb, "S-1-5-2",  subobj.NOGROUP);
 417         setup_name_mapping(info, ldb, "S-1-5-18", subobj.ROOT);
 418         setup_name_mapping(info, ldb, "S-1-5-11", subobj.USERS);
 419         setup_name_mapping(info, ldb, "S-1-5-32-544", subobj.WHEEL);
 420         setup_name_mapping(info, ldb, "S-1-5-32-545", subobj.USERS);
 421         setup_name_mapping(info, ldb, "S-1-5-32-546", subobj.NOGROUP);
 422         setup_name_mapping(info, ldb, "S-1-5-32-551", subobj.BACKUP);
 423
 424         /* and some well known domain rids */
 425         setup_name_mapping(info, ldb, sid + "-500", subobj.ROOT);
 426         setup_name_mapping(info, ldb, sid + "-518", subobj.WHEEL);
 427         setup_name_mapping(info, ldb, sid + "-519", subobj.WHEEL);
 428         setup_name_mapping(info, ldb, sid + "-512", subobj.WHEEL);
 429         setup_name_mapping(info, ldb, sid + "-513", subobj.USERS);
 430         setup_name_mapping(info, ldb, sid + "-520", subobj.WHEEL);
 431
 432         return true;
 433 }
 434
 435 function provision_fix_subobj(subobj, message, paths)
 436 {
 437         subobj.REALM       = strupper(subobj.REALM);
 438         subobj.HOSTNAME    = strlower(subobj.HOSTNAME);
 439         subobj.DOMAIN      = strupper(subobj.DOMAIN);
 440         assert(valid_netbios_name(subobj.DOMAIN));
 441         subobj.NETBIOSNAME = strupper(subobj.HOSTNAME);
 442         assert(valid_netbios_name(subobj.NETBIOSNAME));
 443         var rdns = split(",", subobj.DOMAINDN);
 444         subobj.RDN_DC = substr(rdns[0], strlen("DC="));
 445
 446         subobj.SAM_LDB          = paths.samdb;
 447         subobj.SECRETS_LDB      = paths.secrets;
 448         subobj.SECRETS_KEYTAB   = paths.keytab;
 449
 450         return true;
 451 }
 452
 453 function provision_become_dc(subobj, message, paths, session_info)
 454 {
 455         var lp = loadparm_init();
 456         var sys = sys_init();
 457         var info = new Object();
 458
 459         var ok = provision_fix_subobj(subobj, message, paths);
 460         assert(ok);
 461
 462         info.subobj = subobj;
 463         info.message = message;
 464         info.session_info = session_info;
 465
 466         /* Also wipes the database */
 467         message("Setting up " + paths.samdb + " partitions\n");
 468         setup_ldb("provision_partitions.ldif", info, paths.samdb);
 469
 470         var samdb = open_ldb(info, paths.samdb, false);
 471
 472         message("Setting up " + paths.samdb + " attributes\n");
 473         setup_add_ldif("provision_init.ldif", info, samdb, false);
 474
 475         message("Setting up " + paths.samdb + " rootDSE\n");
 476         setup_add_ldif("provision_rootdse_add.ldif", info, samdb, false);
 477
 478         message("Erasing data from partitions\n");
 479         ldb_erase_partitions(info, samdb, undefined);
 480
 481         message("Setting up " + paths.samdb + " indexes\n");
 482         setup_add_ldif("provision_index.ldif", info, samdb, false);
 483
 484         ok = samdb.transaction_commit();
 485         assert(ok);
 486
 487         message("Setting up " + paths.secrets + "\n");
 488         setup_ldb("secrets.ldif", info, paths.secrets);
 489
 490         tmp = lp.get("secrets database");
 491         ok = lp.set("secrets database", paths.secrets);
 492         assert(ok);
 493
 494         message("Setting up keytabs\n");
 495         var keytab_ok = credentials_update_all_keytabs();
 496         assert(keytab_ok);
 497
 498         ok = lp.set("secrets database", tmp);
 499         assert(ok);
 500
 501         return true;
 502 }
 503
 504 /*
 505   provision samba4 - caution, this wipes all existing data!
 506 */
 507 function provision(subobj, message, blank, paths, session_info, credentials, ldapbackend)
 508 {
 509         var lp = loadparm_init();
 510         var sys = sys_init();
 511         var info = new Object();
 512
 513         var ok = provision_fix_subobj(subobj, message, paths);
 514         assert(ok);
 515
 516         if (subobj.DOMAINGUID != undefined) {
 517                 subobj.DOMAINGUID_MOD = sprintf("replace: objectGUID\nobjectGUID: %s\n-", subobj.DOMAINGUID);
 518         } else {
 519                 subobj.DOMAINGUID_MOD = "";
 520         }
 521
 522         if (subobj.HOSTGUID != undefined) {
 523                 subobj.HOSTGUID_ADD = sprintf("objectGUID: %s", subobj.HOSTGUID);
 524         } else {
 525                 subobj.HOSTGUID_ADD = "";
 526         }
 527
 528         info.subobj = subobj;
 529         info.message = message;
 530         info.credentials = credentials;
 531         info.session_info = session_info;
 532
 533         /* only install a new smb.conf if there isn't one there already */
 534         var st = sys.stat(paths.smbconf);
 535         if (st == undefined) {
 536                 message("Setting up smb.conf\n");
 537                 setup_file("provision.smb.conf", info.message, paths.smbconf, subobj);
 538                 lp.reload();
 539         }
 540         /* only install a new shares config db if there is none */
 541         st = sys.stat(paths.shareconf);
 542         if (st == undefined) {
 543                 message("Setting up share.ldb\n");
 544                 setup_ldb("share.ldif", info, paths.shareconf);
 545         }
 546
 547         message("Setting up secrets.ldb\n");
 548         setup_ldb("secrets.ldif", info, paths.secrets);
 549
 550         message("Setting up keytabs\n");
 551         var keytab_ok = credentials_update_all_keytabs();
 552         assert(keytab_ok);
 553
 554         message("Setting up hklm.ldb\n");
 555         setup_ldb("hklm.ldif", info, paths.hklm);
 556
 557         message("Setting up sam.ldb partitions\n");
 558         /* Also wipes the database */
 559         setup_ldb("provision_partitions.ldif", info, paths.samdb);
 560
 561         var samdb = open_ldb(info, paths.samdb, false);
 562
 563         message("Setting up sam.ldb attributes\n");
 564         setup_add_ldif("provision_init.ldif", info, samdb, false);
 565
 566         message("Setting up sam.ldb rootDSE\n");
 567         setup_add_ldif("provision_rootdse_add.ldif", info, samdb, false);
 568
 569         message("Erasing data from partitions\n");
 570         ldb_erase_partitions(info, samdb, ldapbackend);
 571
 572         message("Adding DomainDN: " + subobj.DOMAINDN + " (permitted to fail)\n");
 573         var add_ok = setup_add_ldif("provision_basedn.ldif", info, samdb, true);
 574         message("Modifying DomainDN: " + subobj.DOMAINDN + "\n");
 575         var modify_ok = setup_ldb_modify("provision_basedn_modify.ldif", info, samdb);
 576         if (!modify_ok) {
 577                 if (!add_ok) {
 578                         message("Failed to both add and modify " + subobj.DOMAINDN + " in target " + subobj.DOMAINDN_LDB + "\n");
 579                         message("Perhaps you need to run the provision script with the --ldap-base-dn option, and add this record to the backend manually\n");
 580                 };
 581                 assert(modify_ok);
 582         };
 583
 584         message("Setting up sam.ldb Samba4 schema\n");
 585         setup_add_ldif("schema_samba4.ldif", info, samdb, false);
 586         message("Setting up sam.ldb AD schema\n");
 587         setup_add_ldif("schema.ldif", info, samdb, false);
 588
 589         // (hack) Reload, now we have the schema loaded.
 590         var commit_ok = samdb.transaction_commit();
 591         if (!commit_ok) {
 592                 info.message("samdb commit failed: " + samdb.errstring() + "\n");
 593                 assert(commit_ok);
 594         }
 595         samdb.close();
 596
 597         samdb = open_ldb(info, paths.samdb, false);
 598
 599         message("Setting up display specifiers\n");
 600         setup_add_ldif("display_specifiers.ldif", info, samdb, false);
 601         message("Setting up sam.ldb templates\n");
 602         setup_add_ldif("provision_templates.ldif", info, samdb, false);
 603
 604         message("Adding users container (permitted to fail)\n");
 605         var add_ok = setup_add_ldif("provision_users_add.ldif", info, samdb, true);
 606         message("Modifying users container\n");
 607         var modify_ok = setup_ldb_modify("provision_users_modify.ldif", info, samdb);
 608         if (!modify_ok) {
 609                 if (!add_ok) {
 610                         message("Failed to both add and modify the users container\n");
 611                         assert(modify_ok);
 612                 }
 613                 assert(modify_ok);
 614         }
 615         message("Adding computers container (permitted to fail)\n");
 616         var add_ok = setup_add_ldif("provision_computers_add.ldif", info, samdb, true);
 617         message("Modifying computers container\n");
 618         var modify_ok = setup_ldb_modify("provision_computers_modify.ldif", info, samdb);
 619         if (!modify_ok) {
 620                 if (!add_ok) {
 621                         message("Failed to both add and modify the computers container\n");
 622                         assert(modify_ok);
 623                 }
 624                 assert(modify_ok);
 625         }
 626
 627         message("Setting up sam.ldb data\n");
 628         setup_add_ldif("provision.ldif", info, samdb, false);
 629         message("Setting up sam.ldb configuration data\n");
 630         setup_add_ldif("provision_configuration.ldif", info, samdb, false);
 631
 632         if (blank != false) {
 633                 message("Setting up sam.ldb index\n");
 634                 setup_add_ldif("provision_index.ldif", info, samdb, false);
 635
 636                 message("Setting up sam.ldb rootDSE marking as syncronized\n");
 637                 setup_modify_ldif("provision_rootdse_modify.ldif", info, samdb, false);
 638
 639                 var commit_ok = samdb.transaction_commit();
 640                 if (!commit_ok) {
 641                         info.message("ldb commit failed: " + samdb.errstring() + "\n");
 642                         assert(commit_ok);
 643                 }
 644                 return true;
 645         }
 646
 647 //      message("Activate schema module");
 648 //      setup_modify_ldif("schema_activation.ldif", info, samdb, false);
 649 //
 650 //      // (hack) Reload, now we have the schema loaded.
 651 //      var commit_ok = samdb.transaction_commit();
 652 //      if (!commit_ok) {
 653 //              info.message("samdb commit failed: " + samdb.errstring() + "\n");
 654 //              assert(commit_ok);
 655 //      }
 656 //      samdb.close();
 657 //
 658 //      samdb = open_ldb(info, paths.samdb, false);
 659 //
 660         message("Setting up sam.ldb users and groups\n");
 661         setup_add_ldif("provision_users.ldif", info, samdb, false);
 662
 663         if (setup_name_mappings(info, samdb) == false) {
 664                 return false;
 665         }
 666
 667         message("Setting up sam.ldb index\n");
 668         setup_add_ldif("provision_index.ldif", info, samdb, false);
 669
 670         message("Setting up sam.ldb rootDSE marking as syncronized\n");
 671         setup_modify_ldif("provision_rootdse_modify.ldif", info, samdb, false);
 672
 673         var commit_ok = samdb.transaction_commit();
 674         if (!commit_ok) {
 675                 info.message("samdb commit failed: " + samdb.errstring() + "\n");
 676                 assert(commit_ok);
 677         }
 678
 679         return true;
 680 }
 681
 682 /* Write out a DNS zone file, from the info in the current database */
 683 function provision_dns(subobj, message, paths, session_info, credentials)
 684 {
 685         message("Setting up DNS zone: " + subobj.DNSDOMAIN + " \n");
 686         var ldb = ldb_init();
 687         ldb.session_info = session_info;
 688         ldb.credentials = credentials;
 689
 690         /* connect to the sam */
 691         var ok = ldb.connect(paths.samdb);
 692         assert(ok);
 693
 694         /* These values may have changed, due to an incoming SamSync,
 695            or may not have been specified, so fetch them from the database */
 696
 697         var attrs = new Array("objectGUID");
 698         res = ldb.search("objectGUID=*", subobj.DOMAINDN, ldb.SCOPE_BASE, attrs);
 699         assert(res.length == 1);
 700         assert(res[0].objectGUID != undefined);
 701         subobj.DOMAINGUID = res[0].objectGUID;
 702
 703         subobj.HOSTGUID = searchone(ldb, subobj.DOMAINDN, "(&(objectClass=computer)(cn=" + subobj.NETBIOSNAME + "))", "objectGUID");
 704         assert(subobj.HOSTGUID != undefined);
 705
 706         setup_file("provision.zone",
 707                    message, paths.dns,
 708                    subobj);
 709
 710         message("Please install the zone located in " + paths.dns + " into your DNS server\n");
 711 }
 712
 713 /* Write out a DNS zone file, from the info in the current database */
 714 function provision_ldapbase(subobj, message, paths)
 715 {
 716         message("Setting up LDAP base entry: " + subobj.DOMAINDN + " \n");
 717         var rdns = split(",", subobj.DOMAINDN);
 718         subobj.EXTENSIBLEOBJECT = "objectClass: extensibleObject";
 719
 720         subobj.RDN_DC = substr(rdns[0], strlen("DC="));
 721
 722         setup_file("provision_basedn.ldif",
 723                    message, paths.ldap_basedn_ldif,
 724                    subobj);
 725
 726         message("Please install the LDIF located in " + paths.ldap_basedn_ldif + " into your LDAP server, and re-run with --ldap-backend=ldap://my.ldap.server\n");
 727 }
 728
 729
 730 /*
 731   guess reasonably default options for provisioning
 732 */
 733 function provision_guess()
 734 {
 735         var subobj = new Object();
 736         var nss = nss_init();
 737         var lp = loadparm_init();
 738         var rdn_list;
 739         random_init(local);
 740
 741         subobj.REALM        = strupper(lp.get("realm"));
 742         subobj.DOMAIN       = lp.get("workgroup");
 743         subobj.HOSTNAME     = hostname();
 744
 745         assert(subobj.REALM);
 746         assert(subobj.DOMAIN);
 747         assert(subobj.HOSTNAME);
 748
 749         subobj.VERSION      = version();
 750         subobj.HOSTIP       = hostip();
 751         subobj.DOMAINSID    = randsid();
 752         subobj.INVOCATIONID = randguid();
 753         subobj.KRBTGTPASS   = randpass(12);
 754         subobj.MACHINEPASS  = randpass(12);
 755         subobj.ADMINPASS    = randpass(12);
 756         subobj.DEFAULTSITE  = "Default-First-Site-Name";
 757         subobj.NEWGUID      = randguid;
 758         subobj.NTTIME       = nttime;
 759         subobj.LDAPTIME     = ldaptime;
 760         subobj.DATESTRING   = datestring;
 761         subobj.ROOT         = findnss(nss.getpwnam, "root");
 762         subobj.NOBODY       = findnss(nss.getpwnam, "nobody");
 763         subobj.NOGROUP      = findnss(nss.getgrnam, "nogroup", "nobody");
 764         subobj.WHEEL        = findnss(nss.getgrnam, "wheel", "root", "staff", "adm");
 765         subobj.BACKUP       = findnss(nss.getgrnam, "backup", "wheel", "root", "staff");
 766         subobj.USERS        = findnss(nss.getgrnam, "users", "guest", "other", "unknown", "usr");
 767
 768         subobj.DNSDOMAIN    = strlower(subobj.REALM);
 769         subobj.DNSNAME      = sprintf("%s.%s",
 770                                       strlower(subobj.HOSTNAME),
 771                                       subobj.DNSDOMAIN);
 772         rdn_list = split(".", subobj.DNSDOMAIN);
 773         subobj.DOMAINDN     = "DC=" + join(",DC=", rdn_list);
 774         subobj.DOMAINDN_LDB = "users.ldb";
 775         subobj.ROOTDN       = subobj.DOMAINDN;
 776         subobj.CONFIGDN     = "CN=Configuration," + subobj.ROOTDN;
 777         subobj.CONFIGDN_LDB = "configuration.ldb";
 778         subobj.SCHEMADN     = "CN=Schema," + subobj.CONFIGDN;
 779         subobj.SCHEMADN_LDB = "schema.ldb";
 780
 781         //Add modules to the list to activate them by default
 782         //beware often order is important
 783         //
 784         // Some Known ordering constraints:
 785         // - rootdse must be first, as it makes redirects from "" -> cn=rootdse
 786         // - samldb must be before password_hash, because password_hash checks
 787         //   that the objectclass is of type person (filled in by samldb)
 788         // - partition must be last
 789         // - each partition has its own module list then
 790         modules_list        = new Array("rootdse",
 791                                         "kludge_acl",
 792                                         "paged_results",
 793                                         "server_sort",
 794                                         "extended_dn",
 795                                         "asq",
 796                                         "samldb",
 797                                         "password_hash",
 798                                         "operational",
 799                                         "objectclass",
 800                                         "rdn_name",
 801                                         "partition");
 802         subobj.MODULES_LIST = join(",", modules_list);
 803         subobj.DOMAINDN_MOD = "objectguid";
 804         subobj.CONFIGDN_MOD = "objectguid";
 805         subobj.SCHEMADN_MOD = "objectguid";
 806
 807         subobj.EXTENSIBLEOBJECT = "# no objectClass: extensibleObject for local ldb";
 808         subobj.ACI              = "# no aci for local ldb";
 809         return subobj;
 810 }
 811
 812 /*
 813   search for one attribute as a string
 814  */
 815 function searchone(ldb, basedn, expression, attribute)
 816 {
 817         var attrs = new Array(attribute);
 818         res = ldb.search(expression, basedn, ldb.SCOPE_SUBTREE, attrs);
 819         if (res.length != 1 ||
 820             res[0][attribute] == undefined) {
 821                 return undefined;
 822         }
 823         return res[0][attribute];
 824 }
 825
 826 /*
 827   modify an account to remove the
 828 */
 829 function enable_account(ldb, user_dn)
 830 {
 831         var attrs = new Array("userAccountControl");
 832         var res = ldb.search(NULL, user_dn, ldb.SCOPE_ONELEVEL, attrs);
 833         assert(res.length == 1);
 834         var userAccountControl = res[0].userAccountControl;
 835         userAccountControl = userAccountControl - 2; /* remove disabled bit */
 836         var mod = sprintf("
 837 dn: %s
 838 changetype: modify
 839 replace: userAccountControl
 840 userAccountControl: %u
 841 ",
 842                           user_dn, userAccountControl);
 843         var ok = ldb.modify(mod);
 844         return ok;
 845 }
 846
 847
 848 /*
 849   add a new user record
 850 */
 851 function newuser(username, unixname, password, message, session_info, credentials)
 852 {
 853         var lp = loadparm_init();
 854         var samdb = lp.get("sam database");
 855         var ldb = ldb_init();
 856         random_init(local);
 857         ldb.session_info = session_info;
 858         ldb.credentials = credentials;
 859
 860         /* connect to the sam */
 861         var ok = ldb.connect(samdb);
 862         assert(ok);
 863
 864         ldb.transaction_start();
 865
 866         /* find the DNs for the domain and the domain users group */
 867         var attrs = new Array("defaultNamingContext");
 868         res = ldb.search("defaultNamingContext=*", "", ldb.SCOPE_BASE, attrs);
 869         assert(res.length == 1 && res[0].defaultNamingContext != undefined);
 870         var domain_dn = res[0].defaultNamingContext;
 871         assert(domain_dn != undefined);
 872         var dom_users = searchone(ldb, domain_dn, "name=Domain Users", "dn");
 873         assert(dom_users != undefined);
 874
 875         var user_dn = sprintf("CN=%s,CN=Users,%s", username, domain_dn);
 876
 877
 878         /*
 879           the new user record. note the reliance on the samdb module to fill
 880           in a sid, guid etc
 881         */
 882         var ldif = sprintf("
 883 dn: %s
 884 sAMAccountName: %s
 885 memberOf: %s
 886 unixName: %s
 887 sambaPassword: %s
 888 objectClass: user
 889 ",
 890                            user_dn, username, dom_users,
 891                            unixname, password);
 892         /*
 893           add the user to the users group as well
 894         */
 895         var modgroup = sprintf("
 896 dn: %s
 897 changetype: modify
 898 add: member
 899 member: %s
 900 ",
 901                                dom_users, user_dn);
 902
 903
 904         /*
 905           now the real work
 906         */
 907         message("Adding user %s\n", user_dn);
 908         ok = ldb.add(ldif);
 909         if (ok != true) {
 910                 message("Failed to add %s - %s\n", user_dn, ldb.errstring());
 911                 return false;
 912         }
 913
 914         message("Modifying group %s\n", dom_users);
 915         ok = ldb.modify(modgroup);
 916         if (ok != true) {
 917                 message("Failed to modify %s - %s\n", dom_users, ldb.errstring());
 918                 return false;
 919         }
 920
 921         /*
 922           modify the userAccountControl to remove the disabled bit
 923         */
 924         ok = enable_account(ldb, user_dn);
 925         if (ok) {
 926                 ldb.transaction_commit();
 927         }
 928         return ok;
 929 }
 930
 931 // Check whether a name is valid as a NetBIOS name.
 932 // FIXME: There are probably more constraints here.
 933 // crh has a paragraph on this in his book (1.4.1.1)
 934 function valid_netbios_name(name)
 935 {
 936         if (strlen(name) > 13) return false;
 937         return true;
 938 }
 939
 940 function provision_validate(subobj, message)
 941 {
 942         var lp = loadparm_init();
 943
 944         if (!valid_netbios_name(subobj.DOMAIN)) {
 945                 message("Invalid NetBIOS name for domain\n");
 946                 return false;
 947         }
 948
 949         if (!valid_netbios_name(subobj.NETBIOSNAME)) {
 950                 message("Invalid NetBIOS name for host\n");
 951                 return false;
 952         }
 953
 954
 955         if (strupper(lp.get("workgroup")) != strupper(subobj.DOMAIN)) {
 956                 message("workgroup '%s' in smb.conf must match chosen domain '%s'\n",
 957                         lp.get("workgroup"), subobj.DOMAIN);
 958                 return false;
 959         }
 960
 961         if (strupper(lp.get("realm")) != strupper(subobj.REALM)) {
 962                 message("realm '%s' in smb.conf must match chosen realm '%s'\n",
 963                         lp.get("realm"), subobj.REALM);
 964                 return false;
 965         }
 966
 967         return true;
 968 }
 969
 970 function join_domain(domain, netbios_name, join_type, creds, message)
 971 {
 972         var ctx = NetContext(creds);
 973         var joindom = new Object();
 974         joindom.domain = domain;
 975         joindom.join_type = join_type;
 976         joindom.netbios_name = netbios_name;
 977         if (!ctx.JoinDomain(joindom)) {
 978                 message("Domain Join failed: " + joindom.error_string);
 979                 return false;
 980         }
 981         return true;
 982 }
 983
 984 /* Vampire a remote domain.  Session info and credentials are required for for
 985  * access to our local database (might be remote ldap)
 986  */
 987
 988 function vampire(domain, session_info, credentials, message) {
 989         var ctx = NetContext(credentials);
 990         var vampire_ctx = new Object();
 991         var machine_creds = credentials_init();
 992         machine_creds.set_domain(form.DOMAIN);
 993         if (!machine_creds.set_machine_account()) {
 994                 message("Failed to access domain join information!");
 995                 return false;
 996         }
 997         vampire_ctx.machine_creds = machine_creds;
 998         vampire_ctx.session_info = session_info;
 999         if (!ctx.SamSyncLdb(vampire_ctx)) {
1000                 message("Migration of remote domain to Samba failed: " + vampire_ctx.error_string);
1001                 return false;
1002         }
1003
1004         return true;
1005 }
1006
1007 return 0;