source3/passdb/pdb_interface.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Password and authentication handling
   4    Copyright (C) Andrew Bartlett                        2002
   5    Copyright (C) Jelmer Vernooij                        2002
   6    Copyright (C) Simo Sorce                             2003
   7    Copyright (C) Volker Lendecke                        2006
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "includes.h"
  25
  26 #undef DBGC_CLASS
  27 #define DBGC_CLASS DBGC_PASSDB
  28
  29 /* Cache of latest SAM lookup query */
  30
  31 static struct samu *csamuser = NULL;
  32
  33 static_decl_pdb;
  34
  35 static struct pdb_init_function_entry *backends = NULL;
  36
  37 static void lazy_initialize_passdb(void)
  38 {
  39         static BOOL initialized = False;
  40         if(initialized) {
  41                 return;
  42         }
  43         static_init_pdb;
  44         initialized = True;
  45 }
  46
  47 static BOOL lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32 rid,
  48                                   const char **name,
  49                                   enum SID_NAME_USE *psid_name_use,
  50                                   union unid_t *unix_id);
  51 /*******************************************************************
  52  Clean up uninitialised passwords.  The only way to tell
  53  that these values are not 'real' is that they do not
  54  have a valid last set time.  Instead, the value is fixed at 0.
  55  Therefore we use that as the key for 'is this a valid password'.
  56  However, it is perfectly valid to have a 'default' last change
  57  time, such LDAP with a missing attribute would produce.
  58 ********************************************************************/
  59
  60 static void pdb_force_pw_initialization(struct samu *pass)
  61 {
  62         const uint8 *lm_pwd, *nt_pwd;
  63
  64         /* only reset a password if the last set time has been
  65            explicitly been set to zero.  A default last set time
  66            is ignored */
  67
  68         if ( (pdb_get_init_flags(pass, PDB_PASSLASTSET) != PDB_DEFAULT)
  69                 && (pdb_get_pass_last_set_time(pass) == 0) )
  70         {
  71
  72                 if (pdb_get_init_flags(pass, PDB_LMPASSWD) != PDB_DEFAULT)
  73                 {
  74                         lm_pwd = pdb_get_lanman_passwd(pass);
  75                         if (lm_pwd)
  76                                 pdb_set_lanman_passwd(pass, NULL, PDB_CHANGED);
  77                 }
  78                 if (pdb_get_init_flags(pass, PDB_NTPASSWD) != PDB_DEFAULT)
  79                 {
  80                         nt_pwd = pdb_get_nt_passwd(pass);
  81                         if (nt_pwd)
  82                                 pdb_set_nt_passwd(pass, NULL, PDB_CHANGED);
  83                 }
  84         }
  85
  86         return;
  87 }
  88
  89 NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
  90 {
  91         struct pdb_init_function_entry *entry = backends;
  92
  93         if(version != PASSDB_INTERFACE_VERSION) {
  94                 DEBUG(0,("Can't register passdb backend!\n"
  95                          "You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
  96                          "while this version of samba uses version %d\n",
  97                          version,PASSDB_INTERFACE_VERSION));
  98                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
  99         }
 100
 101         if (!name || !init) {
 102                 return NT_STATUS_INVALID_PARAMETER;
 103         }
 104
 105         DEBUG(5,("Attempting to register passdb backend %s\n", name));
 106
 107         /* Check for duplicates */
 108         if (pdb_find_backend_entry(name)) {
 109                 DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
 110                 return NT_STATUS_OBJECT_NAME_COLLISION;
 111         }
 112
 113         entry = SMB_XMALLOC_P(struct pdb_init_function_entry);
 114         entry->name = smb_xstrdup(name);
 115         entry->init = init;
 116
 117         DLIST_ADD(backends, entry);
 118         DEBUG(5,("Successfully added passdb backend '%s'\n", name));
 119         return NT_STATUS_OK;
 120 }
 121
 122 struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
 123 {
 124         struct pdb_init_function_entry *entry = backends;
 125
 126         while(entry) {
 127                 if (strcmp(entry->name, name)==0) return entry;
 128                 entry = entry->next;
 129         }
 130
 131         return NULL;
 132 }
 133
 134 /******************************************************************
 135   Make a pdb_methods from scratch
 136  *******************************************************************/
 137
 138 NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected)
 139 {
 140         char *module_name = smb_xstrdup(selected);
 141         char *module_location = NULL, *p;
 142         struct pdb_init_function_entry *entry;
 143         NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
 144
 145         lazy_initialize_passdb();
 146
 147         p = strchr(module_name, ':');
 148
 149         if (p) {
 150                 *p = 0;
 151                 module_location = p+1;
 152                 trim_char(module_location, ' ', ' ');
 153         }
 154
 155         trim_char(module_name, ' ', ' ');
 156
 157
 158         DEBUG(5,("Attempting to find an passdb backend to match %s (%s)\n", selected, module_name));
 159
 160         entry = pdb_find_backend_entry(module_name);
 161
 162         /* Try to find a module that contains this module */
 163         if (!entry) {
 164                 DEBUG(2,("No builtin backend found, trying to load plugin\n"));
 165                 if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
 166                         DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
 167                         SAFE_FREE(module_name);
 168                         return NT_STATUS_UNSUCCESSFUL;
 169                 }
 170         }
 171
 172         /* No such backend found */
 173         if(!entry) {
 174                 DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
 175                 SAFE_FREE(module_name);
 176                 return NT_STATUS_INVALID_PARAMETER;
 177         }
 178
 179         DEBUG(5,("Found pdb backend %s\n", module_name));
 180
 181         if ( !NT_STATUS_IS_OK( nt_status = entry->init(methods, module_location) ) ) {
 182                 DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n",
 183                         selected, nt_errstr(nt_status)));
 184                 SAFE_FREE(module_name);
 185                 return nt_status;
 186         }
 187
 188         SAFE_FREE(module_name);
 189
 190         DEBUG(5,("pdb backend %s has a valid init\n", selected));
 191
 192         return nt_status;
 193 }
 194
 195 /******************************************************************
 196  Return an already initialised pdn_methods structure
 197 *******************************************************************/
 198
 199 static struct pdb_methods *pdb_get_methods_reload( BOOL reload )
 200 {
 201         static struct pdb_methods *pdb = NULL;
 202
 203         if ( pdb && reload ) {
 204                 pdb->free_private_data( &(pdb->private_data) );
 205                 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 206                         pstring msg;
 207                         slprintf(msg, sizeof(msg)-1, "pdb_get_methods_reload: failed to get pdb methods for backend %s\n",
 208                                 lp_passdb_backend() );
 209                         smb_panic(msg);
 210                 }
 211         }
 212
 213         if ( !pdb ) {
 214                 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 215                         pstring msg;
 216                         slprintf(msg, sizeof(msg)-1, "pdb_get_methods_reload: failed to get pdb methods for backend %s\n",
 217                                 lp_passdb_backend() );
 218                         smb_panic(msg);
 219                 }
 220         }
 221
 222         return pdb;
 223 }
 224
 225 static struct pdb_methods *pdb_get_methods(void)
 226 {
 227         return pdb_get_methods_reload(False);
 228 }
 229
 230 /******************************************************************
 231  Backward compatibility functions for the original passdb interface
 232 *******************************************************************/
 233
 234 BOOL pdb_setsampwent(BOOL update, uint16 acb_mask)
 235 {
 236         struct pdb_methods *pdb = pdb_get_methods();
 237         return NT_STATUS_IS_OK(pdb->setsampwent(pdb, update, acb_mask));
 238 }
 239
 240 void pdb_endsampwent(void)
 241 {
 242         struct pdb_methods *pdb = pdb_get_methods();
 243         pdb->endsampwent(pdb);
 244 }
 245
 246 BOOL pdb_getsampwent(struct samu *user)
 247 {
 248         struct pdb_methods *pdb = pdb_get_methods();
 249
 250         if ( !NT_STATUS_IS_OK(pdb->getsampwent(pdb, user) ) ) {
 251                 return False;
 252         }
 253         pdb_force_pw_initialization( user );
 254         return True;
 255 }
 256
 257 BOOL pdb_getsampwnam(struct samu *sam_acct, const char *username)
 258 {
 259         struct pdb_methods *pdb = pdb_get_methods();
 260
 261         if (!NT_STATUS_IS_OK(pdb->getsampwnam(pdb, sam_acct, username))) {
 262                 return False;
 263         }
 264
 265         if ( csamuser ) {
 266                 TALLOC_FREE(csamuser);
 267         }
 268
 269         pdb_force_pw_initialization( sam_acct );
 270
 271         csamuser = samu_new( NULL );
 272         if (!csamuser) {
 273                 return False;
 274         }
 275
 276         if (!pdb_copy_sam_account(csamuser, sam_acct)) {
 277                 TALLOC_FREE(csamuser);
 278                 return False;
 279         }
 280
 281         return True;
 282 }
 283
 284 /**********************************************************************
 285 **********************************************************************/
 286
 287 BOOL guest_user_info( struct samu *user )
 288 {
 289         struct passwd *pwd;
 290         NTSTATUS result;
 291         const char *guestname = lp_guestaccount();
 292
 293         if ( !(pwd = getpwnam_alloc( NULL, guestname ) ) ) {
 294                 DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
 295                         guestname));
 296                 return False;
 297         }
 298
 299         result = samu_set_unix(user, pwd );
 300
 301         TALLOC_FREE( pwd );
 302
 303         return NT_STATUS_IS_OK( result );
 304 }
 305
 306 /**********************************************************************
 307 **********************************************************************/
 308
 309 BOOL pdb_getsampwsid(struct samu *sam_acct, const DOM_SID *sid)
 310 {
 311         struct pdb_methods *pdb = pdb_get_methods();
 312         uint32 rid;
 313
 314         /* hard code the Guest RID of 501 */
 315
 316         if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
 317                 return False;
 318
 319         if ( rid == DOMAIN_USER_RID_GUEST ) {
 320                 DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
 321                 return guest_user_info( sam_acct );
 322         }
 323
 324         /* check the cache first */
 325
 326         if ( csamuser && sid_equal(sid, pdb_get_user_sid(csamuser) ) )
 327                 return pdb_copy_sam_account(sam_acct, csamuser);
 328
 329         return NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
 330 }
 331
 332 static NTSTATUS pdb_default_create_user(struct pdb_methods *methods,
 333                                         TALLOC_CTX *tmp_ctx, const char *name,
 334                                         uint32 acb_info, uint32 *rid)
 335 {
 336         struct samu *sam_pass;
 337         NTSTATUS status;
 338         struct passwd *pwd;
 339
 340         if ((sam_pass = samu_new(tmp_ctx)) == NULL) {
 341                 return NT_STATUS_NO_MEMORY;
 342         }
 343
 344         if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) {
 345                 pstring add_script;
 346                 int add_ret;
 347
 348                 if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') {
 349                         pstrcpy(add_script, lp_adduser_script());
 350                 } else {
 351                         pstrcpy(add_script, lp_addmachine_script());
 352                 }
 353
 354                 if (add_script[0] == '\0') {
 355                         DEBUG(3, ("Could not find user %s and no add script "
 356                                   "defined\n", name));
 357                         return NT_STATUS_NO_SUCH_USER;
 358                 }
 359
 360                 all_string_sub(add_script, "%u", name, sizeof(add_script));
 361                 add_ret = smbrun(add_script,NULL);
 362                 DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n",
 363                                         add_script, add_ret));
 364                 flush_pwnam_cache();
 365
 366                 pwd = Get_Pwnam_alloc(tmp_ctx, name);
 367         }
 368
 369         /* we have a valid SID coming out of this call */
 370
 371         status = samu_alloc_rid_unix( sam_pass, pwd );
 372
 373         TALLOC_FREE( pwd );
 374
 375         if (!NT_STATUS_IS_OK(status)) {
 376                 DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status)));
 377                 return status;
 378         }
 379
 380         if (!sid_peek_check_rid(get_global_sam_sid(),
 381                                 pdb_get_user_sid(sam_pass), rid)) {
 382                 DEBUG(0, ("Could not get RID of fresh user\n"));
 383                 return NT_STATUS_INTERNAL_ERROR;
 384         }
 385
 386         /* Disable the account on creation, it does not have a reasonable password yet. */
 387
 388         acb_info |= ACB_DISABLED;
 389
 390         pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
 391
 392         status = pdb_add_sam_account(sam_pass);
 393
 394         TALLOC_FREE(sam_pass);
 395
 396         return status;
 397 }
 398
 399 NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32 flags,
 400                          uint32 *rid)
 401 {
 402         struct pdb_methods *pdb = pdb_get_methods();
 403         return pdb->create_user(pdb, mem_ctx, name, flags, rid);
 404 }
 405
 406 /****************************************************************************
 407  Delete a UNIX user on demand.
 408 ****************************************************************************/
 409
 410 static int smb_delete_user(const char *unix_user)
 411 {
 412         pstring del_script;
 413         int ret;
 414
 415         /* safety check */
 416
 417         if ( strequal( unix_user, "root" ) ) {
 418                 DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n"));
 419                 return -1;
 420         }
 421
 422         pstrcpy(del_script, lp_deluser_script());
 423         if (! *del_script)
 424                 return -1;
 425         all_string_sub(del_script, "%u", unix_user, sizeof(del_script));
 426         ret = smbrun(del_script,NULL);
 427         flush_pwnam_cache();
 428         DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
 429
 430         return ret;
 431 }
 432
 433 static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods,
 434                                         TALLOC_CTX *mem_ctx,
 435                                         struct samu *sam_acct)
 436 {
 437         NTSTATUS status;
 438
 439         status = pdb_delete_sam_account(sam_acct);
 440         if (!NT_STATUS_IS_OK(status)) {
 441                 return status;
 442         }
 443
 444         /*
 445          * Now delete the unix side ....
 446          * note: we don't check if the delete really happened as the script is
 447          * not necessary present and maybe the sysadmin doesn't want to delete
 448          * the unix side
 449          */
 450         smb_delete_user( pdb_get_username(sam_acct) );
 451
 452         return status;
 453 }
 454
 455 NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct)
 456 {
 457         struct pdb_methods *pdb = pdb_get_methods();
 458         uid_t uid = -1;
 459
 460         /* sanity check to make sure we don't delete root */
 461
 462         if ( !sid_to_uid( pdb_get_user_sid(sam_acct), &uid ) ) {
 463                 return NT_STATUS_NO_SUCH_USER;
 464         }
 465
 466         if ( uid == 0 ) {
 467                 return NT_STATUS_ACCESS_DENIED;
 468         }
 469
 470         return pdb->delete_user(pdb, mem_ctx, sam_acct);
 471 }
 472
 473 NTSTATUS pdb_add_sam_account(struct samu *sam_acct)
 474 {
 475         struct pdb_methods *pdb = pdb_get_methods();
 476         return pdb->add_sam_account(pdb, sam_acct);
 477 }
 478
 479 NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
 480 {
 481         struct pdb_methods *pdb = pdb_get_methods();
 482
 483         if (csamuser != NULL) {
 484                 TALLOC_FREE(csamuser);
 485                 csamuser = NULL;
 486         }
 487
 488         return pdb->update_sam_account(pdb, sam_acct);
 489 }
 490
 491 NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
 492 {
 493         struct pdb_methods *pdb = pdb_get_methods();
 494
 495         if (csamuser != NULL) {
 496                 TALLOC_FREE(csamuser);
 497                 csamuser = NULL;
 498         }
 499
 500         return pdb->delete_sam_account(pdb, sam_acct);
 501 }
 502
 503 NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
 504 {
 505         struct pdb_methods *pdb = pdb_get_methods();
 506         uid_t uid;
 507
 508         if (csamuser != NULL) {
 509                 TALLOC_FREE(csamuser);
 510                 csamuser = NULL;
 511         }
 512
 513         /* sanity check to make sure we don't rename root */
 514
 515         if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) {
 516                 return NT_STATUS_NO_SUCH_USER;
 517         }
 518
 519         if ( uid == 0 ) {
 520                 return NT_STATUS_ACCESS_DENIED;
 521         }
 522
 523         return pdb->rename_sam_account(pdb, oldname, newname);
 524 }
 525
 526 NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, BOOL success)
 527 {
 528         struct pdb_methods *pdb = pdb_get_methods();
 529         return pdb->update_login_attempts(pdb, sam_acct, success);
 530 }
 531
 532 BOOL pdb_getgrsid(GROUP_MAP *map, DOM_SID sid)
 533 {
 534         struct pdb_methods *pdb = pdb_get_methods();
 535         return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
 536 }
 537
 538 BOOL pdb_getgrgid(GROUP_MAP *map, gid_t gid)
 539 {
 540         struct pdb_methods *pdb = pdb_get_methods();
 541         return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
 542 }
 543
 544 BOOL pdb_getgrnam(GROUP_MAP *map, const char *name)
 545 {
 546         struct pdb_methods *pdb = pdb_get_methods();
 547         return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
 548 }
 549
 550 static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods,
 551                                              TALLOC_CTX *mem_ctx,
 552                                              const char *name,
 553                                              uint32 *rid)
 554 {
 555         DOM_SID group_sid;
 556         struct group *grp;
 557
 558         grp = getgrnam(name);
 559
 560         if (grp == NULL) {
 561                 gid_t gid;
 562
 563                 if (smb_create_group(name, &gid) != 0) {
 564                         return NT_STATUS_ACCESS_DENIED;
 565                 }
 566
 567                 grp = getgrgid(gid);
 568         }
 569
 570         if (grp == NULL) {
 571                 return NT_STATUS_ACCESS_DENIED;
 572         }
 573
 574         if (pdb_rid_algorithm()) {
 575                 *rid = pdb_gid_to_group_rid( grp->gr_gid );
 576         } else {
 577                 if (!pdb_new_rid(rid)) {
 578                         return NT_STATUS_ACCESS_DENIED;
 579                 }
 580         }
 581
 582         sid_compose(&group_sid, get_global_sam_sid(), *rid);
 583
 584         return add_initial_entry(grp->gr_gid, sid_string_static(&group_sid),
 585                                  SID_NAME_DOM_GRP, name, NULL);
 586 }
 587
 588 NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name,
 589                               uint32 *rid)
 590 {
 591         struct pdb_methods *pdb = pdb_get_methods();
 592         return pdb->create_dom_group(pdb, mem_ctx, name, rid);
 593 }
 594
 595 static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods,
 596                                              TALLOC_CTX *mem_ctx,
 597                                              uint32 rid)
 598 {
 599         DOM_SID group_sid;
 600         GROUP_MAP map;
 601         NTSTATUS status;
 602         struct group *grp;
 603         const char *grp_name;
 604
 605         sid_compose(&group_sid, get_global_sam_sid(), rid);
 606
 607         if (!get_domain_group_from_sid(group_sid, &map)) {
 608                 DEBUG(10, ("Could not find group for rid %d\n", rid));
 609                 return NT_STATUS_NO_SUCH_GROUP;
 610         }
 611
 612         /* We need the group name for the smb_delete_group later on */
 613
 614         if (map.gid == (gid_t)-1) {
 615                 return NT_STATUS_NO_SUCH_GROUP;
 616         }
 617
 618         grp = getgrgid(map.gid);
 619         if (grp == NULL) {
 620                 return NT_STATUS_NO_SUCH_GROUP;
 621         }
 622
 623         /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
 624
 625         grp_name = talloc_strdup(mem_ctx, grp->gr_name);
 626         if (grp_name == NULL) {
 627                 return NT_STATUS_NO_MEMORY;
 628         }
 629
 630         status = pdb_delete_group_mapping_entry(group_sid);
 631
 632         if (!NT_STATUS_IS_OK(status)) {
 633                 return status;
 634         }
 635
 636         /* Don't check the result of smb_delete_group */
 637
 638         smb_delete_group(grp_name);
 639
 640         return NT_STATUS_OK;
 641 }
 642
 643 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32 rid)
 644 {
 645         struct pdb_methods *pdb = pdb_get_methods();
 646         return pdb->delete_dom_group(pdb, mem_ctx, rid);
 647 }
 648
 649 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
 650 {
 651         struct pdb_methods *pdb = pdb_get_methods();
 652         return pdb->add_group_mapping_entry(pdb, map);
 653 }
 654
 655 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
 656 {
 657         struct pdb_methods *pdb = pdb_get_methods();
 658         return pdb->update_group_mapping_entry(pdb, map);
 659 }
 660
 661 NTSTATUS pdb_delete_group_mapping_entry(DOM_SID sid)
 662 {
 663         struct pdb_methods *pdb = pdb_get_methods();
 664         return pdb->delete_group_mapping_entry(pdb, sid);
 665 }
 666
 667 BOOL pdb_enum_group_mapping(const DOM_SID *sid, enum SID_NAME_USE sid_name_use, GROUP_MAP **pp_rmap,
 668                             size_t *p_num_entries, BOOL unix_only)
 669 {
 670         struct pdb_methods *pdb = pdb_get_methods();
 671         return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
 672                 pp_rmap, p_num_entries, unix_only));
 673 }
 674
 675 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
 676                                 const DOM_SID *sid,
 677                                 uint32 **pp_member_rids,
 678                                 size_t *p_num_members)
 679 {
 680         struct pdb_methods *pdb = pdb_get_methods();
 681         NTSTATUS result;
 682
 683         result = pdb->enum_group_members(pdb, mem_ctx,
 684                         sid, pp_member_rids, p_num_members);
 685
 686         /* special check for rid 513 */
 687
 688         if ( !NT_STATUS_IS_OK( result ) ) {
 689                 uint32 rid;
 690
 691                 sid_peek_rid( sid, &rid );
 692
 693                 if ( rid == DOMAIN_GROUP_RID_USERS ) {
 694                         *p_num_members = 0;
 695                         *pp_member_rids = NULL;
 696
 697                         return NT_STATUS_OK;
 698                 }
 699         }
 700
 701         return result;
 702 }
 703
 704 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
 705                                     DOM_SID **pp_sids, gid_t **pp_gids,
 706                                     size_t *p_num_groups)
 707 {
 708         struct pdb_methods *pdb = pdb_get_methods();
 709         return pdb->enum_group_memberships(
 710                 pdb, mem_ctx, user,
 711                 pp_sids, pp_gids, p_num_groups);
 712 }
 713
 714 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
 715                                                    TALLOC_CTX *mem_ctx,
 716                                                    struct samu *sampass)
 717 {
 718         struct group *grp;
 719         gid_t gid;
 720
 721         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
 722             (grp = getgrgid(gid)) == NULL) {
 723                 return NT_STATUS_INVALID_PRIMARY_GROUP;
 724         }
 725
 726         if (smb_set_primary_group(grp->gr_name,
 727                                   pdb_get_username(sampass)) != 0) {
 728                 return NT_STATUS_ACCESS_DENIED;
 729         }
 730
 731         return NT_STATUS_OK;
 732 }
 733
 734 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
 735 {
 736         struct pdb_methods *pdb = pdb_get_methods();
 737         return pdb->set_unix_primary_group(pdb, mem_ctx, user);
 738 }
 739
 740 /*
 741  * Helper function to see whether a user is in a group. We can't use
 742  * user_in_group_sid here because this creates dependencies only smbd can
 743  * fulfil.
 744  */
 745
 746 static BOOL pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
 747                               const DOM_SID *group_sid)
 748 {
 749         DOM_SID *sids;
 750         gid_t *gids;
 751         size_t i, num_groups;
 752
 753         if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
 754                                                         &sids, &gids,
 755                                                         &num_groups))) {
 756                 return False;
 757         }
 758
 759         for (i=0; i<num_groups; i++) {
 760                 if (sid_equal(group_sid, &sids[i])) {
 761                         return True;
 762                 }
 763         }
 764         return False;
 765 }
 766
 767 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
 768                                          TALLOC_CTX *mem_ctx,
 769                                          uint32 group_rid,
 770                                          uint32 member_rid)
 771 {
 772         DOM_SID group_sid, member_sid;
 773         struct samu *account = NULL;
 774         GROUP_MAP map;
 775         struct group *grp;
 776         struct passwd *pwd;
 777         const char *group_name;
 778         uid_t uid;
 779
 780         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
 781         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
 782
 783         if (!get_domain_group_from_sid(group_sid, &map) ||
 784             (map.gid == (gid_t)-1) ||
 785             ((grp = getgrgid(map.gid)) == NULL)) {
 786                 return NT_STATUS_NO_SUCH_GROUP;
 787         }
 788
 789         group_name = talloc_strdup(mem_ctx, grp->gr_name);
 790         if (group_name == NULL) {
 791                 return NT_STATUS_NO_MEMORY;
 792         }
 793
 794         if ( !(account = samu_new( NULL )) ) {
 795                 return NT_STATUS_NO_MEMORY;
 796         }
 797
 798         if (!pdb_getsampwsid(account, &member_sid) ||
 799             !sid_to_uid(&member_sid, &uid) ||
 800             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
 801                 return NT_STATUS_NO_SUCH_USER;
 802         }
 803
 804         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
 805                 return NT_STATUS_MEMBER_IN_GROUP;
 806         }
 807
 808         /*
 809          * ok, the group exist, the user exist, the user is not in the group,
 810          * we can (finally) add it to the group !
 811          */
 812
 813         smb_add_user_group(group_name, pwd->pw_name);
 814
 815         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
 816                 return NT_STATUS_ACCESS_DENIED;
 817         }
 818
 819         return NT_STATUS_OK;
 820 }
 821
 822 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32 group_rid,
 823                           uint32 member_rid)
 824 {
 825         struct pdb_methods *pdb = pdb_get_methods();
 826         return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
 827 }
 828
 829 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
 830                                          TALLOC_CTX *mem_ctx,
 831                                          uint32 group_rid,
 832                                          uint32 member_rid)
 833 {
 834         DOM_SID group_sid, member_sid;
 835         struct samu *account = NULL;
 836         GROUP_MAP map;
 837         struct group *grp;
 838         struct passwd *pwd;
 839         const char *group_name;
 840         uid_t uid;
 841
 842         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
 843         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
 844
 845         if (!get_domain_group_from_sid(group_sid, &map) ||
 846             (map.gid == (gid_t)-1) ||
 847             ((grp = getgrgid(map.gid)) == NULL)) {
 848                 return NT_STATUS_NO_SUCH_GROUP;
 849         }
 850
 851         group_name = talloc_strdup(mem_ctx, grp->gr_name);
 852         if (group_name == NULL) {
 853                 return NT_STATUS_NO_MEMORY;
 854         }
 855
 856         if ( !(account = samu_new( NULL )) ) {
 857                 return NT_STATUS_NO_MEMORY;
 858         }
 859
 860         if (!pdb_getsampwsid(account, &member_sid) ||
 861             !sid_to_uid(&member_sid, &uid) ||
 862             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
 863                 return NT_STATUS_NO_SUCH_USER;
 864         }
 865
 866         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
 867                 return NT_STATUS_MEMBER_NOT_IN_GROUP;
 868         }
 869
 870         /*
 871          * ok, the group exist, the user exist, the user is in the group,
 872          * we can (finally) delete it from the group!
 873          */
 874
 875         smb_delete_user_group(group_name, pwd->pw_name);
 876
 877         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
 878                 return NT_STATUS_ACCESS_DENIED;
 879         }
 880
 881         return NT_STATUS_OK;
 882 }
 883
 884 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32 group_rid,
 885                           uint32 member_rid)
 886 {
 887         struct pdb_methods *pdb = pdb_get_methods();
 888         return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
 889 }
 890
 891 BOOL pdb_find_alias(const char *name, DOM_SID *sid)
 892 {
 893         struct pdb_methods *pdb = pdb_get_methods();
 894         return NT_STATUS_IS_OK(pdb->find_alias(pdb, name, sid));
 895 }
 896
 897 NTSTATUS pdb_create_alias(const char *name, uint32 *rid)
 898 {
 899         struct pdb_methods *pdb = pdb_get_methods();
 900         return pdb->create_alias(pdb, name, rid);
 901 }
 902
 903 BOOL pdb_delete_alias(const DOM_SID *sid)
 904 {
 905         struct pdb_methods *pdb = pdb_get_methods();
 906         return NT_STATUS_IS_OK(pdb->delete_alias(pdb, sid));
 907
 908 }
 909
 910 BOOL pdb_get_aliasinfo(const DOM_SID *sid, struct acct_info *info)
 911 {
 912         struct pdb_methods *pdb = pdb_get_methods();
 913         return NT_STATUS_IS_OK(pdb->get_aliasinfo(pdb, sid, info));
 914 }
 915
 916 BOOL pdb_set_aliasinfo(const DOM_SID *sid, struct acct_info *info)
 917 {
 918         struct pdb_methods *pdb = pdb_get_methods();
 919         return NT_STATUS_IS_OK(pdb->set_aliasinfo(pdb, sid, info));
 920 }
 921
 922 NTSTATUS pdb_add_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 923 {
 924         struct pdb_methods *pdb = pdb_get_methods();
 925         return pdb->add_aliasmem(pdb, alias, member);
 926 }
 927
 928 NTSTATUS pdb_del_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 929 {
 930         struct pdb_methods *pdb = pdb_get_methods();
 931         return pdb->del_aliasmem(pdb, alias, member);
 932 }
 933
 934 NTSTATUS pdb_enum_aliasmem(const DOM_SID *alias,
 935                            DOM_SID **pp_members, size_t *p_num_members)
 936 {
 937         struct pdb_methods *pdb = pdb_get_methods();
 938         return pdb->enum_aliasmem(pdb, alias, pp_members, p_num_members);
 939 }
 940
 941 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
 942                                     const DOM_SID *domain_sid,
 943                                     const DOM_SID *members, size_t num_members,
 944                                     uint32 **pp_alias_rids,
 945                                     size_t *p_num_alias_rids)
 946 {
 947         struct pdb_methods *pdb = pdb_get_methods();
 948         return pdb->enum_alias_memberships(pdb, mem_ctx,
 949                                                        domain_sid,
 950                                                        members, num_members,
 951                                                        pp_alias_rids,
 952                                                        p_num_alias_rids);
 953 }
 954
 955 NTSTATUS pdb_lookup_rids(const DOM_SID *domain_sid,
 956                          int num_rids,
 957                          uint32 *rids,
 958                          const char **names,
 959                          enum SID_NAME_USE *attrs)
 960 {
 961         struct pdb_methods *pdb = pdb_get_methods();
 962         return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
 963 }
 964
 965 NTSTATUS pdb_lookup_names(const DOM_SID *domain_sid,
 966                           int num_names,
 967                           const char **names,
 968                           uint32 *rids,
 969                           enum SID_NAME_USE *attrs)
 970 {
 971         struct pdb_methods *pdb = pdb_get_methods();
 972         return pdb->lookup_names(pdb, domain_sid, num_names, names, rids, attrs);
 973 }
 974
 975 BOOL pdb_get_account_policy(int policy_index, uint32 *value)
 976 {
 977         struct pdb_methods *pdb = pdb_get_methods();
 978         return NT_STATUS_IS_OK(pdb->get_account_policy(pdb, policy_index, value));
 979 }
 980
 981 BOOL pdb_set_account_policy(int policy_index, uint32 value)
 982 {
 983         struct pdb_methods *pdb = pdb_get_methods();
 984         return NT_STATUS_IS_OK(pdb->set_account_policy(pdb, policy_index, value));
 985 }
 986
 987 BOOL pdb_get_seq_num(time_t *seq_num)
 988 {
 989         struct pdb_methods *pdb = pdb_get_methods();
 990         return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
 991 }
 992
 993 BOOL pdb_uid_to_rid(uid_t uid, uint32 *rid)
 994 {
 995         struct pdb_methods *pdb = pdb_get_methods();
 996         return pdb->uid_to_rid(pdb, uid, rid);
 997 }
 998
 999 BOOL pdb_gid_to_sid(gid_t gid, DOM_SID *sid)
1000 {
1001         struct pdb_methods *pdb = pdb_get_methods();
1002         return pdb->gid_to_sid(pdb, gid, sid);
1003 }
1004
1005 BOOL pdb_sid_to_id(const DOM_SID *sid, union unid_t *id,
1006                    enum SID_NAME_USE *type)
1007 {
1008         struct pdb_methods *pdb = pdb_get_methods();
1009         return pdb->sid_to_id(pdb, sid, id, type);
1010 }
1011
1012 BOOL pdb_rid_algorithm(void)
1013 {
1014         struct pdb_methods *pdb = pdb_get_methods();
1015         return pdb->rid_algorithm(pdb);
1016 }
1017
1018 /********************************************************************
1019  Allocate a new RID from the passdb backend.  Verify that it is free
1020  by calling lookup_global_sam_rid() to verify that the RID is not
1021  in use.  This handles servers that have existing users or groups
1022  with add RIDs (assigned from previous algorithmic mappings)
1023 ********************************************************************/
1024
1025 BOOL pdb_new_rid(uint32 *rid)
1026 {
1027         struct pdb_methods *pdb = pdb_get_methods();
1028         const char *name = NULL;
1029         enum SID_NAME_USE type;
1030         uint32 allocated_rid = 0;
1031         int i;
1032         TALLOC_CTX *ctx;
1033
1034         if (pdb_rid_algorithm()) {
1035                 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1036                           "are active\n"));
1037                 return False;
1038         }
1039
1040         if (algorithmic_rid_base() != BASE_RID) {
1041                 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1042                           "without algorithmic RIDs is chosen.\n"));
1043                 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1044                              "add', set the maximum used RID using\n"));
1045                 DEBUGADD(0, ("'net setmaxrid' and remove the parameter\n"));
1046                 return False;
1047         }
1048
1049         if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1050                 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1051                 return False;
1052         }
1053
1054         /* Attempt to get an unused RID (max tires is 250...yes that it is
1055            and arbitrary number I pulkled out of my head).   -- jerry */
1056
1057         for ( i=0; allocated_rid==0 && i<250; i++ ) {
1058                 /* get a new RID */
1059
1060                 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1061                         return False;
1062                 }
1063
1064                 /* validate that the RID is not in use */
1065
1066                 if ( lookup_global_sam_rid( ctx, allocated_rid, &name, &type, NULL ) ) {
1067                         allocated_rid = 0;
1068                 }
1069         }
1070
1071         TALLOC_FREE( ctx );
1072
1073         if ( allocated_rid == 0 ) {
1074                 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1075                 return False;
1076         }
1077
1078         *rid = allocated_rid;
1079
1080         return True;
1081 }
1082
1083 /***************************************************************
1084   Initialize the static context (at smbd startup etc).
1085
1086   If uninitialised, context will auto-init on first use.
1087  ***************************************************************/
1088
1089 BOOL initialize_password_db(BOOL reload)
1090 {
1091         return (pdb_get_methods_reload(reload) != NULL);
1092 }
1093
1094
1095 /***************************************************************************
1096   Default implementations of some functions.
1097  ****************************************************************************/
1098
1099 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1100 {
1101         return NT_STATUS_NO_SUCH_USER;
1102 }
1103
1104 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const DOM_SID *sid)
1105 {
1106         return NT_STATUS_NO_SUCH_USER;
1107 }
1108
1109 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1110 {
1111         return NT_STATUS_NOT_IMPLEMENTED;
1112 }
1113
1114 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1115 {
1116         return NT_STATUS_NOT_IMPLEMENTED;
1117 }
1118
1119 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1120 {
1121         return NT_STATUS_NOT_IMPLEMENTED;
1122 }
1123
1124 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1125 {
1126         return NT_STATUS_NOT_IMPLEMENTED;
1127 }
1128
1129 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, BOOL success)
1130 {
1131         return NT_STATUS_OK;
1132 }
1133
1134 static NTSTATUS pdb_default_setsampwent(struct pdb_methods *methods, BOOL update, uint32 acb_mask)
1135 {
1136         return NT_STATUS_NOT_IMPLEMENTED;
1137 }
1138
1139 static NTSTATUS pdb_default_getsampwent(struct pdb_methods *methods, struct samu *user)
1140 {
1141         return NT_STATUS_NOT_IMPLEMENTED;
1142 }
1143
1144 static void pdb_default_endsampwent(struct pdb_methods *methods)
1145 {
1146         return; /* NT_STATUS_NOT_IMPLEMENTED; */
1147 }
1148
1149 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, int policy_index, uint32 *value)
1150 {
1151         return account_policy_get(policy_index, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1152 }
1153
1154 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, int policy_index, uint32 value)
1155 {
1156         return account_policy_set(policy_index, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1157 }
1158
1159 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1160 {
1161         *seq_num = time(NULL);
1162         return NT_STATUS_OK;
1163 }
1164
1165 static BOOL pdb_default_uid_to_rid(struct pdb_methods *methods, uid_t uid,
1166                                    uint32 *rid)
1167 {
1168         struct samu *sampw = NULL;
1169         struct passwd *unix_pw;
1170         BOOL ret;
1171
1172         unix_pw = sys_getpwuid( uid );
1173
1174         if ( !unix_pw ) {
1175                 DEBUG(4,("pdb_default_uid_to_rid: host has no idea of uid "
1176                          "%lu\n", (unsigned long)uid));
1177                 return False;
1178         }
1179
1180         if ( !(sampw = samu_new( NULL )) ) {
1181                 DEBUG(0,("pdb_default_uid_to_rid: samu_new() failed!\n"));
1182                 return False;
1183         }
1184
1185         become_root();
1186         ret = NT_STATUS_IS_OK(
1187                 methods->getsampwnam(methods, sampw, unix_pw->pw_name ));
1188         unbecome_root();
1189
1190         if (!ret) {
1191                 DEBUG(5, ("pdb_default_uid_to_rid: Did not find user "
1192                           "%s (%d)\n", unix_pw->pw_name, uid));
1193                 TALLOC_FREE(sampw);
1194                 return False;
1195         }
1196
1197         ret = sid_peek_check_rid(get_global_sam_sid(),
1198                                  pdb_get_user_sid(sampw), rid);
1199
1200         if (!ret) {
1201                 DEBUG(1, ("Could not peek rid out of sid %s\n",
1202                           sid_string_static(pdb_get_user_sid(sampw))));
1203         }
1204
1205         TALLOC_FREE(sampw);
1206         return ret;
1207 }
1208
1209 static BOOL pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1210                                    DOM_SID *sid)
1211 {
1212         GROUP_MAP map;
1213
1214         if (!NT_STATUS_IS_OK(methods->getgrgid(methods, &map, gid))) {
1215                 return False;
1216         }
1217
1218         sid_copy(sid, &map.sid);
1219         return True;
1220 }
1221
1222 static BOOL pdb_default_sid_to_id(struct pdb_methods *methods,
1223                                   const DOM_SID *sid,
1224                                   union unid_t *id, enum SID_NAME_USE *type)
1225 {
1226         TALLOC_CTX *mem_ctx;
1227         BOOL ret = False;
1228         const char *name;
1229         uint32 rid;
1230
1231         mem_ctx = talloc_new(NULL);
1232
1233         if (mem_ctx == NULL) {
1234                 DEBUG(0, ("talloc_new failed\n"));
1235                 return False;
1236         }
1237
1238         if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1239                 /* Here we might have users as well as groups and aliases */
1240                 ret = lookup_global_sam_rid(mem_ctx, rid, &name, type, id);
1241                 goto done;
1242         }
1243
1244         if (sid_peek_check_rid(&global_sid_Builtin, sid, &rid)) {
1245                 /* Here we only have aliases */
1246                 GROUP_MAP map;
1247                 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, &map, *sid))) {
1248                         DEBUG(10, ("Could not find map for sid %s\n",
1249                                    sid_string_static(sid)));
1250                         goto done;
1251                 }
1252                 if ((map.sid_name_use != SID_NAME_ALIAS) &&
1253                     (map.sid_name_use != SID_NAME_WKN_GRP)) {
1254                         DEBUG(10, ("Map for sid %s is a %s, expected an "
1255                                    "alias\n", sid_string_static(sid),
1256                                    sid_type_lookup(map.sid_name_use)));
1257                         goto done;
1258                 }
1259
1260                 id->gid = map.gid;
1261                 *type = SID_NAME_ALIAS;
1262                 ret = True;
1263                 goto done;
1264         }
1265
1266         DEBUG(5, ("Sid %s is neither ours nor builtin, don't know it\n",
1267                   sid_string_static(sid)));
1268
1269  done:
1270
1271         TALLOC_FREE(mem_ctx);
1272         return ret;
1273 }
1274
1275 static void add_uid_to_array_unique(TALLOC_CTX *mem_ctx,
1276                                     uid_t uid, uid_t **pp_uids, size_t *p_num)
1277 {
1278         size_t i;
1279
1280         for (i=0; i<*p_num; i++) {
1281                 if ((*pp_uids)[i] == uid)
1282                         return;
1283         }
1284
1285         *pp_uids = TALLOC_REALLOC_ARRAY(mem_ctx, *pp_uids, uid_t, *p_num+1);
1286
1287         if (*pp_uids == NULL)
1288                 return;
1289
1290         (*pp_uids)[*p_num] = uid;
1291         *p_num += 1;
1292 }
1293
1294 static BOOL get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, size_t *p_num)
1295 {
1296         struct group *grp;
1297         char **gr;
1298         struct passwd *pwd;
1299         char *winbindd_env;
1300
1301         *pp_uids = NULL;
1302         *p_num = 0;
1303
1304         /* We only look at our own sam, so don't care about imported stuff */
1305
1306         winbindd_env = getenv(WINBINDD_DONT_ENV);
1307         winbind_off();
1308
1309         if ((grp = getgrgid(gid)) == NULL) {
1310                 /* allow winbindd lookups, but only if they weren't already disabled */
1311                 if ( !(winbindd_env && strequal(winbindd_env, "1")) ) {
1312                         winbind_on();
1313                 }
1314
1315                 return False;
1316         }
1317
1318         /* Primary group members */
1319
1320         setpwent();
1321         while ((pwd = getpwent()) != NULL) {
1322                 if (pwd->pw_gid == gid) {
1323                         add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1324                                                 pp_uids, p_num);
1325                 }
1326         }
1327         endpwent();
1328
1329         /* Secondary group members */
1330
1331         for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1332                 struct passwd *pw = getpwnam(*gr);
1333
1334                 if (pw == NULL)
1335                         continue;
1336                 add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num);
1337         }
1338
1339         /* allow winbindd lookups, but only if they weren't already disabled */
1340
1341         if ( !(winbindd_env && strequal(winbindd_env, "1")) ) {
1342                 winbind_on();
1343         }
1344
1345         return True;
1346 }
1347
1348 NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1349                                         TALLOC_CTX *mem_ctx,
1350                                         const DOM_SID *group,
1351                                         uint32 **pp_member_rids,
1352                                         size_t *p_num_members)
1353 {
1354         gid_t gid;
1355         uid_t *uids;
1356         size_t i, num_uids;
1357
1358         *pp_member_rids = NULL;
1359         *p_num_members = 0;
1360
1361         if (!sid_to_gid(group, &gid))
1362                 return NT_STATUS_NO_SUCH_GROUP;
1363
1364         if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1365                 return NT_STATUS_NO_SUCH_GROUP;
1366
1367         if (num_uids == 0)
1368                 return NT_STATUS_OK;
1369
1370         *pp_member_rids = TALLOC_ZERO_ARRAY(mem_ctx, uint32, num_uids);
1371
1372         for (i=0; i<num_uids; i++) {
1373                 DOM_SID sid;
1374
1375                 uid_to_sid(&sid, uids[i]);
1376
1377                 if (!sid_check_is_in_our_domain(&sid)) {
1378                         DEBUG(5, ("Inconsistent SAM -- group member uid not "
1379                                   "in our domain\n"));
1380                         continue;
1381                 }
1382
1383                 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1384                 *p_num_members += 1;
1385         }
1386
1387         return NT_STATUS_OK;
1388 }
1389
1390 NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1391                                             TALLOC_CTX *mem_ctx,
1392                                             struct samu *user,
1393                                             DOM_SID **pp_sids,
1394                                             gid_t **pp_gids,
1395                                             size_t *p_num_groups)
1396 {
1397         size_t i;
1398         gid_t gid;
1399         struct passwd *pw;
1400         const char *username = pdb_get_username(user);
1401
1402
1403         /* Ignore the primary group SID.  Honor the real Unix primary group.
1404            The primary group SID is only of real use to Windows clients */
1405
1406         if ( !(pw = getpwnam_alloc(mem_ctx, username)) ) {
1407                 return NT_STATUS_NO_SUCH_USER;
1408         }
1409
1410         gid = pw->pw_gid;
1411
1412         TALLOC_FREE( pw );
1413
1414         if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1415                 return NT_STATUS_NO_SUCH_USER;
1416         }
1417
1418         if (*p_num_groups == 0) {
1419                 smb_panic("primary group missing");
1420         }
1421
1422         *pp_sids = TALLOC_ARRAY(mem_ctx, DOM_SID, *p_num_groups);
1423
1424         if (*pp_sids == NULL) {
1425                 TALLOC_FREE(*pp_gids);
1426                 return NT_STATUS_NO_MEMORY;
1427         }
1428
1429         for (i=0; i<*p_num_groups; i++) {
1430                 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1431         }
1432
1433         return NT_STATUS_OK;
1434 }
1435
1436 /*******************************************************************
1437  Look up a rid in the SAM we're responsible for (i.e. passdb)
1438  ********************************************************************/
1439
1440 static BOOL lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32 rid,
1441                                   const char **name,
1442                                   enum SID_NAME_USE *psid_name_use,
1443                                   union unid_t *unix_id)
1444 {
1445         struct samu *sam_account = NULL;
1446         GROUP_MAP map;
1447         BOOL ret;
1448         DOM_SID sid;
1449
1450         *psid_name_use = SID_NAME_UNKNOWN;
1451
1452         DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1453                  (unsigned int)rid));
1454
1455         sid_copy(&sid, get_global_sam_sid());
1456         sid_append_rid(&sid, rid);
1457
1458         /* see if the passdb can help us with the name of the user */
1459
1460         if ( !(sam_account = samu_new( NULL )) ) {
1461                 return False;
1462         }
1463
1464         /* BEING ROOT BLLOCK */
1465         become_root();
1466         if (pdb_getsampwsid(sam_account, &sid)) {
1467                 struct passwd *pw;
1468
1469                 unbecome_root();                /* -----> EXIT BECOME_ROOT() */
1470                 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1471                 if (!*name) {
1472                         TALLOC_FREE(sam_account);
1473                         return False;
1474                 }
1475
1476                 *psid_name_use = SID_NAME_USER;
1477
1478                 TALLOC_FREE(sam_account);
1479
1480                 if (unix_id == NULL) {
1481                         return True;
1482                 }
1483
1484                 pw = Get_Pwnam(*name);
1485                 if (pw == NULL) {
1486                         return False;
1487                 }
1488                 unix_id->uid = pw->pw_uid;
1489                 return True;
1490         }
1491         TALLOC_FREE(sam_account);
1492
1493         ret = pdb_getgrsid(&map, sid);
1494         unbecome_root();
1495         /* END BECOME_ROOT BLOCK */
1496
1497         /* do not resolve SIDs to a name unless there is a valid
1498            gid associated with it */
1499
1500         if ( ret && (map.gid != (gid_t)-1) ) {
1501                 *name = talloc_strdup(mem_ctx, map.nt_name);
1502                 *psid_name_use = map.sid_name_use;
1503
1504                 if ( unix_id ) {
1505                         unix_id->gid = map.gid;
1506                 }
1507
1508                 return True;
1509         }
1510
1511         /* Windows will always map RID 513 to something.  On a non-domain
1512            controller, this gets mapped to SERVER\None. */
1513
1514         if ( unix_id ) {
1515                 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1516                 return False;
1517         }
1518
1519         if ( rid == DOMAIN_GROUP_RID_USERS ) {
1520                 *name = talloc_strdup(mem_ctx, "None" );
1521                 *psid_name_use = SID_NAME_DOM_GRP;
1522
1523                 return True;
1524         }
1525
1526         return False;
1527 }
1528
1529 NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1530                                  const DOM_SID *domain_sid,
1531                                  int num_rids,
1532                                  uint32 *rids,
1533                                  const char **names,
1534                                  enum SID_NAME_USE *attrs)
1535 {
1536         int i;
1537         NTSTATUS result;
1538         BOOL have_mapped = False;
1539         BOOL have_unmapped = False;
1540
1541         if (sid_check_is_builtin(domain_sid)) {
1542
1543                 for (i=0; i<num_rids; i++) {
1544                         const char *name;
1545
1546                         if (lookup_builtin_rid(names, rids[i], &name)) {
1547                                 attrs[i] = SID_NAME_ALIAS;
1548                                 names[i] = name;
1549                                 DEBUG(5,("lookup_rids: %s:%d\n",
1550                                          names[i], attrs[i]));
1551                                 have_mapped = True;
1552                         } else {
1553                                 have_unmapped = True;
1554                                 attrs[i] = SID_NAME_UNKNOWN;
1555                         }
1556                 }
1557                 goto done;
1558         }
1559
1560         /* Should not happen, but better check once too many */
1561         if (!sid_check_is_domain(domain_sid)) {
1562                 return NT_STATUS_INVALID_HANDLE;
1563         }
1564
1565         for (i = 0; i < num_rids; i++) {
1566                 const char *name;
1567
1568                 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1569                                           NULL)) {
1570                         if (name == NULL) {
1571                                 return NT_STATUS_NO_MEMORY;
1572                         }
1573                         names[i] = name;
1574                         DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1575                         have_mapped = True;
1576                 } else {
1577                         have_unmapped = True;
1578                         attrs[i] = SID_NAME_UNKNOWN;
1579                 }
1580         }
1581
1582  done:
1583
1584         result = NT_STATUS_NONE_MAPPED;
1585
1586         if (have_mapped)
1587                 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1588
1589         return result;
1590 }
1591
1592 NTSTATUS pdb_default_lookup_names(struct pdb_methods *methods,
1593                                   const DOM_SID *domain_sid,
1594                                   int num_names,
1595                                   const char **names,
1596                                   uint32 *rids,
1597                                   enum SID_NAME_USE *attrs)
1598 {
1599         int i;
1600         NTSTATUS result;
1601         BOOL have_mapped = False;
1602         BOOL have_unmapped = False;
1603
1604         if (sid_check_is_builtin(domain_sid)) {
1605
1606                 for (i=0; i<num_names; i++) {
1607                         uint32 rid;
1608
1609                         if (lookup_builtin_name(names[i], &rid)) {
1610                                 attrs[i] = SID_NAME_ALIAS;
1611                                 rids[i] = rid;
1612                                 DEBUG(5,("lookup_rids: %s:%d\n",
1613                                          names[i], attrs[i]));
1614                                 have_mapped = True;
1615                         } else {
1616                                 have_unmapped = True;
1617                                 attrs[i] = SID_NAME_UNKNOWN;
1618                         }
1619                 }
1620                 goto done;
1621         }
1622
1623         /* Should not happen, but better check once too many */
1624         if (!sid_check_is_domain(domain_sid)) {
1625                 return NT_STATUS_INVALID_HANDLE;
1626         }
1627
1628         for (i = 0; i < num_names; i++) {
1629                 if (lookup_global_sam_name(names[i], 0, &rids[i], &attrs[i])) {
1630                         DEBUG(5,("lookup_names: %s-> %d:%d\n", names[i],
1631                                  rids[i], attrs[i]));
1632                         have_mapped = True;
1633                 } else {
1634                         have_unmapped = True;
1635                         attrs[i] = SID_NAME_UNKNOWN;
1636                 }
1637         }
1638
1639  done:
1640
1641         result = NT_STATUS_NONE_MAPPED;
1642
1643         if (have_mapped)
1644                 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1645
1646         return result;
1647 }
1648
1649 static struct pdb_search *pdb_search_init(enum pdb_search_type type)
1650 {
1651         TALLOC_CTX *mem_ctx;
1652         struct pdb_search *result;
1653
1654         mem_ctx = talloc_init("pdb_search");
1655         if (mem_ctx == NULL) {
1656                 DEBUG(0, ("talloc_init failed\n"));
1657                 return NULL;
1658         }
1659
1660         result = TALLOC_P(mem_ctx, struct pdb_search);
1661         if (result == NULL) {
1662                 DEBUG(0, ("talloc failed\n"));
1663                 return NULL;
1664         }
1665
1666         result->mem_ctx = mem_ctx;
1667         result->type = type;
1668         result->cache = NULL;
1669         result->num_entries = 0;
1670         result->cache_size = 0;
1671         result->search_ended = False;
1672
1673         /* Segfault appropriately if not initialized */
1674         result->next_entry = NULL;
1675         result->search_end = NULL;
1676
1677         return result;
1678 }
1679
1680 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32 rid,
1681                               uint16 acct_flags,
1682                               const char *account_name,
1683                               const char *fullname,
1684                               const char *description,
1685                               struct samr_displayentry *entry)
1686 {
1687         entry->rid = rid;
1688         entry->acct_flags = acct_flags;
1689
1690         if (account_name != NULL)
1691                 entry->account_name = talloc_strdup(mem_ctx, account_name);
1692         else
1693                 entry->account_name = "";
1694
1695         if (fullname != NULL)
1696                 entry->fullname = talloc_strdup(mem_ctx, fullname);
1697         else
1698                 entry->fullname = "";
1699
1700         if (description != NULL)
1701                 entry->description = talloc_strdup(mem_ctx, description);
1702         else
1703                 entry->description = "";
1704 }
1705
1706 static BOOL user_search_in_progress = False;
1707 struct user_search {
1708         uint16 acct_flags;
1709 };
1710
1711 static BOOL next_entry_users(struct pdb_search *s,
1712                              struct samr_displayentry *entry)
1713 {
1714         struct user_search *state = s->private_data;
1715         struct samu *user = NULL;
1716
1717  next:
1718         if ( !(user = samu_new( NULL )) ) {
1719                 DEBUG(0, ("next_entry_users: samu_new() failed!\n"));
1720                 return False;
1721         }
1722
1723         if (!pdb_getsampwent(user)) {
1724                 TALLOC_FREE(user);
1725                 return False;
1726         }
1727
1728         if ((state->acct_flags != 0) &&
1729             ((pdb_get_acct_ctrl(user) & state->acct_flags) == 0)) {
1730                 TALLOC_FREE(user);
1731                 goto next;
1732         }
1733
1734         fill_displayentry(s->mem_ctx, pdb_get_user_rid(user),
1735                           pdb_get_acct_ctrl(user), pdb_get_username(user),
1736                           pdb_get_fullname(user), pdb_get_acct_desc(user),
1737                           entry);
1738
1739         TALLOC_FREE(user);
1740         return True;
1741 }
1742
1743 static void search_end_users(struct pdb_search *search)
1744 {
1745         pdb_endsampwent();
1746         user_search_in_progress = False;
1747 }
1748
1749 static BOOL pdb_default_search_users(struct pdb_methods *methods,
1750                                      struct pdb_search *search,
1751                                      uint32 acct_flags)
1752 {
1753         struct user_search *state;
1754
1755         if (user_search_in_progress) {
1756                 DEBUG(1, ("user search in progress\n"));
1757                 return False;
1758         }
1759
1760         if (!pdb_setsampwent(False, acct_flags)) {
1761                 DEBUG(5, ("Could not start search\n"));
1762                 return False;
1763         }
1764
1765         user_search_in_progress = True;
1766
1767         state = TALLOC_P(search->mem_ctx, struct user_search);
1768         if (state == NULL) {
1769                 DEBUG(0, ("talloc failed\n"));
1770                 return False;
1771         }
1772
1773         state->acct_flags = acct_flags;
1774
1775         search->private_data = state;
1776         search->next_entry = next_entry_users;
1777         search->search_end = search_end_users;
1778         return True;
1779 }
1780
1781 struct group_search {
1782         GROUP_MAP *groups;
1783         size_t num_groups, current_group;
1784 };
1785
1786 static BOOL next_entry_groups(struct pdb_search *s,
1787                               struct samr_displayentry *entry)
1788 {
1789         struct group_search *state = s->private_data;
1790         uint32 rid;
1791         GROUP_MAP *map = &state->groups[state->current_group];
1792
1793         if (state->current_group == state->num_groups)
1794                 return False;
1795
1796         sid_peek_rid(&map->sid, &rid);
1797
1798         fill_displayentry(s->mem_ctx, rid, 0, map->nt_name, NULL, map->comment,
1799                           entry);
1800
1801         state->current_group += 1;
1802         return True;
1803 }
1804
1805 static void search_end_groups(struct pdb_search *search)
1806 {
1807         struct group_search *state = search->private_data;
1808         SAFE_FREE(state->groups);
1809 }
1810
1811 static BOOL pdb_search_grouptype(struct pdb_search *search,
1812                                  const DOM_SID *sid, enum SID_NAME_USE type)
1813 {
1814         struct group_search *state;
1815
1816         state = TALLOC_P(search->mem_ctx, struct group_search);
1817         if (state == NULL) {
1818                 DEBUG(0, ("talloc failed\n"));
1819                 return False;
1820         }
1821
1822         if (!pdb_enum_group_mapping(sid, type, &state->groups, &state->num_groups,
1823                                     True)) {
1824                 DEBUG(0, ("Could not enum groups\n"));
1825                 return False;
1826         }
1827
1828         state->current_group = 0;
1829         search->private_data = state;
1830         search->next_entry = next_entry_groups;
1831         search->search_end = search_end_groups;
1832         return True;
1833 }
1834
1835 static BOOL pdb_default_search_groups(struct pdb_methods *methods,
1836                                       struct pdb_search *search)
1837 {
1838         return pdb_search_grouptype(search, get_global_sam_sid(), SID_NAME_DOM_GRP);
1839 }
1840
1841 static BOOL pdb_default_search_aliases(struct pdb_methods *methods,
1842                                        struct pdb_search *search,
1843                                        const DOM_SID *sid)
1844 {
1845
1846         return pdb_search_grouptype(search, sid, SID_NAME_ALIAS);
1847 }
1848
1849 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
1850                                                      uint32 idx)
1851 {
1852         if (idx < search->num_entries)
1853                 return &search->cache[idx];
1854
1855         if (search->search_ended)
1856                 return NULL;
1857
1858         while (idx >= search->num_entries) {
1859                 struct samr_displayentry entry;
1860
1861                 if (!search->next_entry(search, &entry)) {
1862                         search->search_end(search);
1863                         search->search_ended = True;
1864                         break;
1865                 }
1866
1867                 ADD_TO_LARGE_ARRAY(search->mem_ctx, struct samr_displayentry,
1868                                    entry, &search->cache, &search->num_entries,
1869                                    &search->cache_size);
1870         }
1871
1872         return (search->num_entries > idx) ? &search->cache[idx] : NULL;
1873 }
1874
1875 struct pdb_search *pdb_search_users(uint32 acct_flags)
1876 {
1877         struct pdb_methods *pdb = pdb_get_methods();
1878         struct pdb_search *result;
1879
1880         result = pdb_search_init(PDB_USER_SEARCH);
1881         if (result == NULL) {
1882                 return NULL;
1883         }
1884
1885         if (!pdb->search_users(pdb, result, acct_flags)) {
1886                 talloc_destroy(result->mem_ctx);
1887                 return NULL;
1888         }
1889         return result;
1890 }
1891
1892 struct pdb_search *pdb_search_groups(void)
1893 {
1894         struct pdb_methods *pdb = pdb_get_methods();
1895         struct pdb_search *result;
1896
1897         result = pdb_search_init(PDB_GROUP_SEARCH);
1898         if (result == NULL) {
1899                  return NULL;
1900         }
1901
1902         if (!pdb->search_groups(pdb, result)) {
1903                 talloc_destroy(result->mem_ctx);
1904                 return NULL;
1905         }
1906         return result;
1907 }
1908
1909 struct pdb_search *pdb_search_aliases(const DOM_SID *sid)
1910 {
1911         struct pdb_methods *pdb = pdb_get_methods();
1912         struct pdb_search *result;
1913
1914         if (pdb == NULL) return NULL;
1915
1916         result = pdb_search_init(PDB_ALIAS_SEARCH);
1917         if (result == NULL) return NULL;
1918
1919         if (!pdb->search_aliases(pdb, result, sid)) {
1920                 talloc_destroy(result->mem_ctx);
1921                 return NULL;
1922         }
1923         return result;
1924 }
1925
1926 uint32 pdb_search_entries(struct pdb_search *search,
1927                           uint32 start_idx, uint32 max_entries,
1928                           struct samr_displayentry **result)
1929 {
1930         struct samr_displayentry *end_entry;
1931         uint32 end_idx = start_idx+max_entries-1;
1932
1933         /* The first entry needs to be searched after the last. Otherwise the
1934          * first entry might have moved due to a realloc during the search for
1935          * the last entry. */
1936
1937         end_entry = pdb_search_getentry(search, end_idx);
1938         *result = pdb_search_getentry(search, start_idx);
1939
1940         if (end_entry != NULL)
1941                 return max_entries;
1942
1943         if (start_idx >= search->num_entries)
1944                 return 0;
1945
1946         return search->num_entries - start_idx;
1947 }
1948
1949 void pdb_search_destroy(struct pdb_search *search)
1950 {
1951         if (search == NULL)
1952                 return;
1953
1954         if (!search->search_ended)
1955                 search->search_end(search);
1956
1957         talloc_destroy(search->mem_ctx);
1958 }
1959
1960 /*******************************************************************
1961  Create a pdb_methods structure and initialize it with the default
1962  operations.  In this way a passdb module can simply implement
1963  the functionality it cares about.  However, normally this is done
1964  in groups of related functions.
1965 *******************************************************************/
1966
1967 NTSTATUS make_pdb_method( struct pdb_methods **methods )
1968 {
1969         /* allocate memory for the structure as its own talloc CTX */
1970
1971         if ( !(*methods = TALLOC_ZERO_P(NULL, struct pdb_methods) ) ) {
1972                 return NT_STATUS_NO_MEMORY;
1973         }
1974
1975         (*methods)->setsampwent = pdb_default_setsampwent;
1976         (*methods)->endsampwent = pdb_default_endsampwent;
1977         (*methods)->getsampwent = pdb_default_getsampwent;
1978         (*methods)->getsampwnam = pdb_default_getsampwnam;
1979         (*methods)->getsampwsid = pdb_default_getsampwsid;
1980         (*methods)->create_user = pdb_default_create_user;
1981         (*methods)->delete_user = pdb_default_delete_user;
1982         (*methods)->add_sam_account = pdb_default_add_sam_account;
1983         (*methods)->update_sam_account = pdb_default_update_sam_account;
1984         (*methods)->delete_sam_account = pdb_default_delete_sam_account;
1985         (*methods)->rename_sam_account = pdb_default_rename_sam_account;
1986         (*methods)->update_login_attempts = pdb_default_update_login_attempts;
1987
1988         (*methods)->getgrsid = pdb_default_getgrsid;
1989         (*methods)->getgrgid = pdb_default_getgrgid;
1990         (*methods)->getgrnam = pdb_default_getgrnam;
1991         (*methods)->create_dom_group = pdb_default_create_dom_group;
1992         (*methods)->delete_dom_group = pdb_default_delete_dom_group;
1993         (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
1994         (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
1995         (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
1996         (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
1997         (*methods)->enum_group_members = pdb_default_enum_group_members;
1998         (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
1999         (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2000         (*methods)->add_groupmem = pdb_default_add_groupmem;
2001         (*methods)->del_groupmem = pdb_default_del_groupmem;
2002         (*methods)->find_alias = pdb_default_find_alias;
2003         (*methods)->create_alias = pdb_default_create_alias;
2004         (*methods)->delete_alias = pdb_default_delete_alias;
2005         (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2006         (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2007         (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2008         (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2009         (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2010         (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2011         (*methods)->lookup_rids = pdb_default_lookup_rids;
2012         (*methods)->get_account_policy = pdb_default_get_account_policy;
2013         (*methods)->set_account_policy = pdb_default_set_account_policy;
2014         (*methods)->get_seq_num = pdb_default_get_seq_num;
2015         (*methods)->uid_to_rid = pdb_default_uid_to_rid;
2016         (*methods)->gid_to_sid = pdb_default_gid_to_sid;
2017         (*methods)->sid_to_id = pdb_default_sid_to_id;
2018
2019         (*methods)->search_users = pdb_default_search_users;
2020         (*methods)->search_groups = pdb_default_search_groups;
2021         (*methods)->search_aliases = pdb_default_search_aliases;
2022
2023         return NT_STATUS_OK;
2024 }