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 3 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, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24
  25 #undef DBGC_CLASS
  26 #define DBGC_CLASS DBGC_PASSDB
  27
  28 static_decl_pdb;
  29
  30 static struct pdb_init_function_entry *backends = NULL;
  31
  32 static void lazy_initialize_passdb(void)
  33 {
  34         static bool initialized = False;
  35         if(initialized) {
  36                 return;
  37         }
  38         static_init_pdb;
  39         initialized = True;
  40 }
  41
  42 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32 rid,
  43                                   const char **name,
  44                                   enum lsa_SidType *psid_name_use,
  45                                   union unid_t *unix_id);
  46
  47 NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
  48 {
  49         struct pdb_init_function_entry *entry = backends;
  50
  51         if(version != PASSDB_INTERFACE_VERSION) {
  52                 DEBUG(0,("Can't register passdb backend!\n"
  53                          "You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
  54                          "while this version of samba uses version %d\n",
  55                          version,PASSDB_INTERFACE_VERSION));
  56                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
  57         }
  58
  59         if (!name || !init) {
  60                 return NT_STATUS_INVALID_PARAMETER;
  61         }
  62
  63         DEBUG(5,("Attempting to register passdb backend %s\n", name));
  64
  65         /* Check for duplicates */
  66         if (pdb_find_backend_entry(name)) {
  67                 DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
  68                 return NT_STATUS_OBJECT_NAME_COLLISION;
  69         }
  70
  71         entry = SMB_XMALLOC_P(struct pdb_init_function_entry);
  72         entry->name = smb_xstrdup(name);
  73         entry->init = init;
  74
  75         DLIST_ADD(backends, entry);
  76         DEBUG(5,("Successfully added passdb backend '%s'\n", name));
  77         return NT_STATUS_OK;
  78 }
  79
  80 struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
  81 {
  82         struct pdb_init_function_entry *entry = backends;
  83
  84         while(entry) {
  85                 if (strcmp(entry->name, name)==0) return entry;
  86                 entry = entry->next;
  87         }
  88
  89         return NULL;
  90 }
  91
  92 /*
  93  * The event context for the passdb backend. I know this is a bad hack and yet
  94  * another static variable, but our pdb API is a global thing per
  95  * definition. The first use for this is the LDAP idle function, more might be
  96  * added later.
  97  *
  98  * I don't feel too bad about this static variable, it replaces the
  99  * smb_idle_event_list that used to exist in lib/module.c.  -- VL
 100  */
 101
 102 static struct event_context *pdb_event_ctx;
 103
 104 struct event_context *pdb_get_event_context(void)
 105 {
 106         return pdb_event_ctx;
 107 }
 108
 109 /******************************************************************
 110   Make a pdb_methods from scratch
 111  *******************************************************************/
 112
 113 NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected)
 114 {
 115         char *module_name = smb_xstrdup(selected);
 116         char *module_location = NULL, *p;
 117         struct pdb_init_function_entry *entry;
 118         NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
 119
 120         lazy_initialize_passdb();
 121
 122         p = strchr(module_name, ':');
 123
 124         if (p) {
 125                 *p = 0;
 126                 module_location = p+1;
 127                 trim_char(module_location, ' ', ' ');
 128         }
 129
 130         trim_char(module_name, ' ', ' ');
 131
 132
 133         DEBUG(5,("Attempting to find a passdb backend to match %s (%s)\n", selected, module_name));
 134
 135         entry = pdb_find_backend_entry(module_name);
 136
 137         /* Try to find a module that contains this module */
 138         if (!entry) {
 139                 DEBUG(2,("No builtin backend found, trying to load plugin\n"));
 140                 if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
 141                         DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
 142                         SAFE_FREE(module_name);
 143                         return NT_STATUS_UNSUCCESSFUL;
 144                 }
 145         }
 146
 147         /* No such backend found */
 148         if(!entry) {
 149                 DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
 150                 SAFE_FREE(module_name);
 151                 return NT_STATUS_INVALID_PARAMETER;
 152         }
 153
 154         DEBUG(5,("Found pdb backend %s\n", module_name));
 155
 156         if ( !NT_STATUS_IS_OK( nt_status = entry->init(methods, module_location) ) ) {
 157                 DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n",
 158                         selected, nt_errstr(nt_status)));
 159                 SAFE_FREE(module_name);
 160                 return nt_status;
 161         }
 162
 163         SAFE_FREE(module_name);
 164
 165         DEBUG(5,("pdb backend %s has a valid init\n", selected));
 166
 167         return nt_status;
 168 }
 169
 170 /******************************************************************
 171  Return an already initialized pdb_methods structure
 172 *******************************************************************/
 173
 174 static struct pdb_methods *pdb_get_methods_reload( bool reload )
 175 {
 176         static struct pdb_methods *pdb = NULL;
 177
 178         if ( pdb && reload ) {
 179                 pdb->free_private_data( &(pdb->private_data) );
 180                 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 181                         char *msg = NULL;
 182                         if (asprintf(&msg, "pdb_get_methods_reload: "
 183                                         "failed to get pdb methods for backend %s\n",
 184                                         lp_passdb_backend()) > 0) {
 185                                 smb_panic(msg);
 186                         } else {
 187                                 smb_panic("pdb_get_methods_reload");
 188                         }
 189                 }
 190         }
 191
 192         if ( !pdb ) {
 193                 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 194                         char *msg = NULL;
 195                         if (asprintf(&msg, "pdb_get_methods_reload: "
 196                                         "failed to get pdb methods for backend %s\n",
 197                                         lp_passdb_backend()) > 0) {
 198                                 smb_panic(msg);
 199                         } else {
 200                                 smb_panic("pdb_get_methods_reload");
 201                         }
 202                 }
 203         }
 204
 205         return pdb;
 206 }
 207
 208 static struct pdb_methods *pdb_get_methods(void)
 209 {
 210         return pdb_get_methods_reload(False);
 211 }
 212
 213 struct pdb_domain_info *pdb_get_domain_info(TALLOC_CTX *mem_ctx)
 214 {
 215         struct pdb_methods *pdb = pdb_get_methods();
 216         return pdb->get_domain_info(pdb, mem_ctx);
 217 }
 218
 219 bool pdb_getsampwnam(struct samu *sam_acct, const char *username)
 220 {
 221         struct pdb_methods *pdb = pdb_get_methods();
 222         struct samu *for_cache;
 223         const struct dom_sid *user_sid;
 224
 225         if (!NT_STATUS_IS_OK(pdb->getsampwnam(pdb, sam_acct, username))) {
 226                 return False;
 227         }
 228
 229         for_cache = samu_new(NULL);
 230         if (for_cache == NULL) {
 231                 return False;
 232         }
 233
 234         if (!pdb_copy_sam_account(for_cache, sam_acct)) {
 235                 TALLOC_FREE(for_cache);
 236                 return False;
 237         }
 238
 239         user_sid = pdb_get_user_sid(for_cache);
 240
 241         memcache_add_talloc(NULL, PDB_GETPWSID_CACHE,
 242                             data_blob_const(user_sid, sizeof(*user_sid)),
 243                             &for_cache);
 244
 245         return True;
 246 }
 247
 248 /**********************************************************************
 249 **********************************************************************/
 250
 251 bool guest_user_info( struct samu *user )
 252 {
 253         struct passwd *pwd;
 254         NTSTATUS result;
 255         const char *guestname = lp_guestaccount();
 256
 257         if ( !(pwd = getpwnam_alloc(talloc_autofree_context(), guestname ) ) ) {
 258                 DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
 259                         guestname));
 260                 return False;
 261         }
 262
 263         result = samu_set_unix(user, pwd );
 264
 265         TALLOC_FREE( pwd );
 266
 267         return NT_STATUS_IS_OK( result );
 268 }
 269
 270 /**********************************************************************
 271 **********************************************************************/
 272
 273 bool pdb_getsampwsid(struct samu *sam_acct, const DOM_SID *sid)
 274 {
 275         struct pdb_methods *pdb = pdb_get_methods();
 276         uint32 rid;
 277         void *cache_data;
 278
 279         /* hard code the Guest RID of 501 */
 280
 281         if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
 282                 return False;
 283
 284         if ( rid == DOMAIN_USER_RID_GUEST ) {
 285                 DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
 286                 return guest_user_info( sam_acct );
 287         }
 288
 289         /* check the cache first */
 290
 291         cache_data = memcache_lookup_talloc(
 292                 NULL, PDB_GETPWSID_CACHE, data_blob_const(sid, sizeof(*sid)));
 293
 294         if (cache_data != NULL) {
 295                 struct samu *cache_copy = talloc_get_type_abort(
 296                         cache_data, struct samu);
 297
 298                 return pdb_copy_sam_account(sam_acct, cache_copy);
 299         }
 300
 301         return NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
 302 }
 303
 304 static NTSTATUS pdb_default_create_user(struct pdb_methods *methods,
 305                                         TALLOC_CTX *tmp_ctx, const char *name,
 306                                         uint32 acb_info, uint32 *rid)
 307 {
 308         struct samu *sam_pass;
 309         NTSTATUS status;
 310         struct passwd *pwd;
 311
 312         if ((sam_pass = samu_new(tmp_ctx)) == NULL) {
 313                 return NT_STATUS_NO_MEMORY;
 314         }
 315
 316         if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) {
 317                 char *add_script = NULL;
 318                 int add_ret;
 319                 fstring name2;
 320
 321                 if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') {
 322                         add_script = talloc_strdup(tmp_ctx,
 323                                         lp_adduser_script());
 324                 } else {
 325                         add_script = talloc_strdup(tmp_ctx,
 326                                         lp_addmachine_script());
 327                 }
 328
 329                 if (!add_script || add_script[0] == '\0') {
 330                         DEBUG(3, ("Could not find user %s and no add script "
 331                                   "defined\n", name));
 332                         return NT_STATUS_NO_SUCH_USER;
 333                 }
 334
 335                 /* lowercase the username before creating the Unix account for
 336                    compatibility with previous Samba releases */
 337                 fstrcpy( name2, name );
 338                 strlower_m( name2 );
 339                 add_script = talloc_all_string_sub(tmp_ctx,
 340                                         add_script,
 341                                         "%u",
 342                                         name2);
 343                 if (!add_script) {
 344                         return NT_STATUS_NO_MEMORY;
 345                 }
 346                 add_ret = smbrun(add_script,NULL);
 347                 DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n",
 348                                         add_script, add_ret));
 349                 if (add_ret == 0) {
 350                         smb_nscd_flush_user_cache();
 351                 }
 352
 353                 flush_pwnam_cache();
 354
 355                 pwd = Get_Pwnam_alloc(tmp_ctx, name);
 356         }
 357
 358         /* we have a valid SID coming out of this call */
 359
 360         status = samu_alloc_rid_unix( sam_pass, pwd );
 361
 362         TALLOC_FREE( pwd );
 363
 364         if (!NT_STATUS_IS_OK(status)) {
 365                 DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status)));
 366                 return status;
 367         }
 368
 369         if (!sid_peek_check_rid(get_global_sam_sid(),
 370                                 pdb_get_user_sid(sam_pass), rid)) {
 371                 DEBUG(0, ("Could not get RID of fresh user\n"));
 372                 return NT_STATUS_INTERNAL_ERROR;
 373         }
 374
 375         /* Use the username case specified in the original request */
 376
 377         pdb_set_username( sam_pass, name, PDB_SET );
 378
 379         /* Disable the account on creation, it does not have a reasonable password yet. */
 380
 381         acb_info |= ACB_DISABLED;
 382
 383         pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
 384
 385         status = pdb_add_sam_account(sam_pass);
 386
 387         TALLOC_FREE(sam_pass);
 388
 389         return status;
 390 }
 391
 392 NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32 flags,
 393                          uint32 *rid)
 394 {
 395         struct pdb_methods *pdb = pdb_get_methods();
 396         return pdb->create_user(pdb, mem_ctx, name, flags, rid);
 397 }
 398
 399 /****************************************************************************
 400  Delete a UNIX user on demand.
 401 ****************************************************************************/
 402
 403 static int smb_delete_user(const char *unix_user)
 404 {
 405         char *del_script = NULL;
 406         int ret;
 407
 408         /* safety check */
 409
 410         if ( strequal( unix_user, "root" ) ) {
 411                 DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n"));
 412                 return -1;
 413         }
 414
 415         del_script = talloc_strdup(talloc_tos(), lp_deluser_script());
 416         if (!del_script || !*del_script) {
 417                 return -1;
 418         }
 419         del_script = talloc_all_string_sub(talloc_tos(),
 420                                 del_script,
 421                                 "%u",
 422                                 unix_user);
 423         if (!del_script) {
 424                 return -1;
 425         }
 426         ret = smbrun(del_script,NULL);
 427         flush_pwnam_cache();
 428         if (ret == 0) {
 429                 smb_nscd_flush_user_cache();
 430         }
 431         DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
 432
 433         return ret;
 434 }
 435
 436 static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods,
 437                                         TALLOC_CTX *mem_ctx,
 438                                         struct samu *sam_acct)
 439 {
 440         NTSTATUS status;
 441         fstring username;
 442
 443         status = pdb_delete_sam_account(sam_acct);
 444         if (!NT_STATUS_IS_OK(status)) {
 445                 return status;
 446         }
 447
 448         /*
 449          * Now delete the unix side ....
 450          * note: we don't check if the delete really happened as the script is
 451          * not necessary present and maybe the sysadmin doesn't want to delete
 452          * the unix side
 453          */
 454
 455         /* always lower case the username before handing it off to
 456            external scripts */
 457
 458         fstrcpy( username, pdb_get_username(sam_acct) );
 459         strlower_m( username );
 460
 461         smb_delete_user( username );
 462
 463         return status;
 464 }
 465
 466 NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct)
 467 {
 468         struct pdb_methods *pdb = pdb_get_methods();
 469         uid_t uid = -1;
 470
 471         /* sanity check to make sure we don't delete root */
 472
 473         if ( !sid_to_uid( pdb_get_user_sid(sam_acct), &uid ) ) {
 474                 return NT_STATUS_NO_SUCH_USER;
 475         }
 476
 477         if ( uid == 0 ) {
 478                 return NT_STATUS_ACCESS_DENIED;
 479         }
 480
 481         return pdb->delete_user(pdb, mem_ctx, sam_acct);
 482 }
 483
 484 NTSTATUS pdb_add_sam_account(struct samu *sam_acct)
 485 {
 486         struct pdb_methods *pdb = pdb_get_methods();
 487         return pdb->add_sam_account(pdb, sam_acct);
 488 }
 489
 490 NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
 491 {
 492         struct pdb_methods *pdb = pdb_get_methods();
 493
 494         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 495
 496         return pdb->update_sam_account(pdb, sam_acct);
 497 }
 498
 499 NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
 500 {
 501         struct pdb_methods *pdb = pdb_get_methods();
 502
 503         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 504
 505         return pdb->delete_sam_account(pdb, sam_acct);
 506 }
 507
 508 NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
 509 {
 510         struct pdb_methods *pdb = pdb_get_methods();
 511         uid_t uid;
 512         NTSTATUS status;
 513
 514         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 515
 516         /* sanity check to make sure we don't rename root */
 517
 518         if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) {
 519                 return NT_STATUS_NO_SUCH_USER;
 520         }
 521
 522         if ( uid == 0 ) {
 523                 return NT_STATUS_ACCESS_DENIED;
 524         }
 525
 526         status = pdb->rename_sam_account(pdb, oldname, newname);
 527
 528         /* always flush the cache here just to be safe */
 529         flush_pwnam_cache();
 530
 531         return status;
 532 }
 533
 534 NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, bool success)
 535 {
 536         struct pdb_methods *pdb = pdb_get_methods();
 537         return pdb->update_login_attempts(pdb, sam_acct, success);
 538 }
 539
 540 bool pdb_getgrsid(GROUP_MAP *map, DOM_SID sid)
 541 {
 542         struct pdb_methods *pdb = pdb_get_methods();
 543         return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
 544 }
 545
 546 bool pdb_getgrgid(GROUP_MAP *map, gid_t gid)
 547 {
 548         struct pdb_methods *pdb = pdb_get_methods();
 549         return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
 550 }
 551
 552 bool pdb_getgrnam(GROUP_MAP *map, const char *name)
 553 {
 554         struct pdb_methods *pdb = pdb_get_methods();
 555         return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
 556 }
 557
 558 static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods,
 559                                              TALLOC_CTX *mem_ctx,
 560                                              const char *name,
 561                                              uint32 *rid)
 562 {
 563         DOM_SID group_sid;
 564         struct group *grp;
 565         fstring tmp;
 566
 567         grp = getgrnam(name);
 568
 569         if (grp == NULL) {
 570                 gid_t gid;
 571
 572                 if (smb_create_group(name, &gid) != 0) {
 573                         return NT_STATUS_ACCESS_DENIED;
 574                 }
 575
 576                 grp = getgrgid(gid);
 577         }
 578
 579         if (grp == NULL) {
 580                 return NT_STATUS_ACCESS_DENIED;
 581         }
 582
 583         if (pdb_capabilities() & PDB_CAP_STORE_RIDS) {
 584                 if (!pdb_new_rid(rid)) {
 585                         return NT_STATUS_ACCESS_DENIED;
 586                 }
 587         } else {
 588                 *rid = algorithmic_pdb_gid_to_group_rid( grp->gr_gid );
 589         }
 590
 591         sid_compose(&group_sid, get_global_sam_sid(), *rid);
 592
 593         return add_initial_entry(grp->gr_gid, sid_to_fstring(tmp, &group_sid),
 594                                  SID_NAME_DOM_GRP, name, NULL);
 595 }
 596
 597 NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name,
 598                               uint32 *rid)
 599 {
 600         struct pdb_methods *pdb = pdb_get_methods();
 601         return pdb->create_dom_group(pdb, mem_ctx, name, rid);
 602 }
 603
 604 static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods,
 605                                              TALLOC_CTX *mem_ctx,
 606                                              uint32 rid)
 607 {
 608         DOM_SID group_sid;
 609         GROUP_MAP map;
 610         NTSTATUS status;
 611         struct group *grp;
 612         const char *grp_name;
 613
 614         /* coverity */
 615         map.gid = (gid_t) -1;
 616
 617         sid_compose(&group_sid, get_global_sam_sid(), rid);
 618
 619         if (!get_domain_group_from_sid(group_sid, &map)) {
 620                 DEBUG(10, ("Could not find group for rid %d\n", rid));
 621                 return NT_STATUS_NO_SUCH_GROUP;
 622         }
 623
 624         /* We need the group name for the smb_delete_group later on */
 625
 626         if (map.gid == (gid_t)-1) {
 627                 return NT_STATUS_NO_SUCH_GROUP;
 628         }
 629
 630         grp = getgrgid(map.gid);
 631         if (grp == NULL) {
 632                 return NT_STATUS_NO_SUCH_GROUP;
 633         }
 634
 635         /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
 636
 637         grp_name = talloc_strdup(mem_ctx, grp->gr_name);
 638         if (grp_name == NULL) {
 639                 return NT_STATUS_NO_MEMORY;
 640         }
 641
 642         status = pdb_delete_group_mapping_entry(group_sid);
 643
 644         if (!NT_STATUS_IS_OK(status)) {
 645                 return status;
 646         }
 647
 648         /* Don't check the result of smb_delete_group */
 649
 650         smb_delete_group(grp_name);
 651
 652         return NT_STATUS_OK;
 653 }
 654
 655 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32 rid)
 656 {
 657         struct pdb_methods *pdb = pdb_get_methods();
 658         return pdb->delete_dom_group(pdb, mem_ctx, rid);
 659 }
 660
 661 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
 662 {
 663         struct pdb_methods *pdb = pdb_get_methods();
 664         return pdb->add_group_mapping_entry(pdb, map);
 665 }
 666
 667 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
 668 {
 669         struct pdb_methods *pdb = pdb_get_methods();
 670         return pdb->update_group_mapping_entry(pdb, map);
 671 }
 672
 673 NTSTATUS pdb_delete_group_mapping_entry(DOM_SID sid)
 674 {
 675         struct pdb_methods *pdb = pdb_get_methods();
 676         return pdb->delete_group_mapping_entry(pdb, sid);
 677 }
 678
 679 bool pdb_enum_group_mapping(const DOM_SID *sid, enum lsa_SidType sid_name_use, GROUP_MAP **pp_rmap,
 680                             size_t *p_num_entries, bool unix_only)
 681 {
 682         struct pdb_methods *pdb = pdb_get_methods();
 683         return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
 684                 pp_rmap, p_num_entries, unix_only));
 685 }
 686
 687 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
 688                                 const DOM_SID *sid,
 689                                 uint32 **pp_member_rids,
 690                                 size_t *p_num_members)
 691 {
 692         struct pdb_methods *pdb = pdb_get_methods();
 693         NTSTATUS result;
 694
 695         result = pdb->enum_group_members(pdb, mem_ctx,
 696                         sid, pp_member_rids, p_num_members);
 697
 698         /* special check for rid 513 */
 699
 700         if ( !NT_STATUS_IS_OK( result ) ) {
 701                 uint32 rid;
 702
 703                 sid_peek_rid( sid, &rid );
 704
 705                 if ( rid == DOMAIN_GROUP_RID_USERS ) {
 706                         *p_num_members = 0;
 707                         *pp_member_rids = NULL;
 708
 709                         return NT_STATUS_OK;
 710                 }
 711         }
 712
 713         return result;
 714 }
 715
 716 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
 717                                     DOM_SID **pp_sids, gid_t **pp_gids,
 718                                     size_t *p_num_groups)
 719 {
 720         struct pdb_methods *pdb = pdb_get_methods();
 721         return pdb->enum_group_memberships(
 722                 pdb, mem_ctx, user,
 723                 pp_sids, pp_gids, p_num_groups);
 724 }
 725
 726 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
 727                                                    TALLOC_CTX *mem_ctx,
 728                                                    struct samu *sampass)
 729 {
 730         struct group *grp;
 731         gid_t gid;
 732
 733         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
 734             (grp = getgrgid(gid)) == NULL) {
 735                 return NT_STATUS_INVALID_PRIMARY_GROUP;
 736         }
 737
 738         if (smb_set_primary_group(grp->gr_name,
 739                                   pdb_get_username(sampass)) != 0) {
 740                 return NT_STATUS_ACCESS_DENIED;
 741         }
 742
 743         return NT_STATUS_OK;
 744 }
 745
 746 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
 747 {
 748         struct pdb_methods *pdb = pdb_get_methods();
 749         return pdb->set_unix_primary_group(pdb, mem_ctx, user);
 750 }
 751
 752 /*
 753  * Helper function to see whether a user is in a group. We can't use
 754  * user_in_group_sid here because this creates dependencies only smbd can
 755  * fulfil.
 756  */
 757
 758 static bool pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
 759                               const DOM_SID *group_sid)
 760 {
 761         DOM_SID *sids;
 762         gid_t *gids;
 763         size_t i, num_groups;
 764
 765         if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
 766                                                         &sids, &gids,
 767                                                         &num_groups))) {
 768                 return False;
 769         }
 770
 771         for (i=0; i<num_groups; i++) {
 772                 if (sid_equal(group_sid, &sids[i])) {
 773                         return True;
 774                 }
 775         }
 776         return False;
 777 }
 778
 779 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
 780                                          TALLOC_CTX *mem_ctx,
 781                                          uint32 group_rid,
 782                                          uint32 member_rid)
 783 {
 784         DOM_SID group_sid, member_sid;
 785         struct samu *account = NULL;
 786         GROUP_MAP map;
 787         struct group *grp;
 788         struct passwd *pwd;
 789         const char *group_name;
 790         uid_t uid;
 791
 792         /* coverity */
 793         map.gid = (gid_t) -1;
 794
 795         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
 796         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
 797
 798         if (!get_domain_group_from_sid(group_sid, &map) ||
 799             (map.gid == (gid_t)-1) ||
 800             ((grp = getgrgid(map.gid)) == NULL)) {
 801                 return NT_STATUS_NO_SUCH_GROUP;
 802         }
 803
 804         group_name = talloc_strdup(mem_ctx, grp->gr_name);
 805         if (group_name == NULL) {
 806                 return NT_STATUS_NO_MEMORY;
 807         }
 808
 809         if ( !(account = samu_new( NULL )) ) {
 810                 return NT_STATUS_NO_MEMORY;
 811         }
 812
 813         if (!pdb_getsampwsid(account, &member_sid) ||
 814             !sid_to_uid(&member_sid, &uid) ||
 815             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
 816                 return NT_STATUS_NO_SUCH_USER;
 817         }
 818
 819         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
 820                 return NT_STATUS_MEMBER_IN_GROUP;
 821         }
 822
 823         /*
 824          * ok, the group exist, the user exist, the user is not in the group,
 825          * we can (finally) add it to the group !
 826          */
 827
 828         smb_add_user_group(group_name, pwd->pw_name);
 829
 830         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
 831                 return NT_STATUS_ACCESS_DENIED;
 832         }
 833
 834         return NT_STATUS_OK;
 835 }
 836
 837 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32 group_rid,
 838                           uint32 member_rid)
 839 {
 840         struct pdb_methods *pdb = pdb_get_methods();
 841         return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
 842 }
 843
 844 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
 845                                          TALLOC_CTX *mem_ctx,
 846                                          uint32 group_rid,
 847                                          uint32 member_rid)
 848 {
 849         DOM_SID group_sid, member_sid;
 850         struct samu *account = NULL;
 851         GROUP_MAP map;
 852         struct group *grp;
 853         struct passwd *pwd;
 854         const char *group_name;
 855         uid_t uid;
 856
 857         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
 858         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
 859
 860         if (!get_domain_group_from_sid(group_sid, &map) ||
 861             (map.gid == (gid_t)-1) ||
 862             ((grp = getgrgid(map.gid)) == NULL)) {
 863                 return NT_STATUS_NO_SUCH_GROUP;
 864         }
 865
 866         group_name = talloc_strdup(mem_ctx, grp->gr_name);
 867         if (group_name == NULL) {
 868                 return NT_STATUS_NO_MEMORY;
 869         }
 870
 871         if ( !(account = samu_new( NULL )) ) {
 872                 return NT_STATUS_NO_MEMORY;
 873         }
 874
 875         if (!pdb_getsampwsid(account, &member_sid) ||
 876             !sid_to_uid(&member_sid, &uid) ||
 877             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
 878                 return NT_STATUS_NO_SUCH_USER;
 879         }
 880
 881         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
 882                 return NT_STATUS_MEMBER_NOT_IN_GROUP;
 883         }
 884
 885         /*
 886          * ok, the group exist, the user exist, the user is in the group,
 887          * we can (finally) delete it from the group!
 888          */
 889
 890         smb_delete_user_group(group_name, pwd->pw_name);
 891
 892         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
 893                 return NT_STATUS_ACCESS_DENIED;
 894         }
 895
 896         return NT_STATUS_OK;
 897 }
 898
 899 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32 group_rid,
 900                           uint32 member_rid)
 901 {
 902         struct pdb_methods *pdb = pdb_get_methods();
 903         return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
 904 }
 905
 906 NTSTATUS pdb_create_alias(const char *name, uint32 *rid)
 907 {
 908         struct pdb_methods *pdb = pdb_get_methods();
 909         return pdb->create_alias(pdb, name, rid);
 910 }
 911
 912 NTSTATUS pdb_delete_alias(const DOM_SID *sid)
 913 {
 914         struct pdb_methods *pdb = pdb_get_methods();
 915         return pdb->delete_alias(pdb, sid);
 916 }
 917
 918 NTSTATUS pdb_get_aliasinfo(const DOM_SID *sid, struct acct_info *info)
 919 {
 920         struct pdb_methods *pdb = pdb_get_methods();
 921         return pdb->get_aliasinfo(pdb, sid, info);
 922 }
 923
 924 NTSTATUS pdb_set_aliasinfo(const DOM_SID *sid, struct acct_info *info)
 925 {
 926         struct pdb_methods *pdb = pdb_get_methods();
 927         return pdb->set_aliasinfo(pdb, sid, info);
 928 }
 929
 930 NTSTATUS pdb_add_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 931 {
 932         struct pdb_methods *pdb = pdb_get_methods();
 933         return pdb->add_aliasmem(pdb, alias, member);
 934 }
 935
 936 NTSTATUS pdb_del_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 937 {
 938         struct pdb_methods *pdb = pdb_get_methods();
 939         return pdb->del_aliasmem(pdb, alias, member);
 940 }
 941
 942 NTSTATUS pdb_enum_aliasmem(const DOM_SID *alias, TALLOC_CTX *mem_ctx,
 943                            DOM_SID **pp_members, size_t *p_num_members)
 944 {
 945         struct pdb_methods *pdb = pdb_get_methods();
 946         return pdb->enum_aliasmem(pdb, alias, mem_ctx, pp_members,
 947                                   p_num_members);
 948 }
 949
 950 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
 951                                     const DOM_SID *domain_sid,
 952                                     const DOM_SID *members, size_t num_members,
 953                                     uint32 **pp_alias_rids,
 954                                     size_t *p_num_alias_rids)
 955 {
 956         struct pdb_methods *pdb = pdb_get_methods();
 957         return pdb->enum_alias_memberships(pdb, mem_ctx,
 958                                                        domain_sid,
 959                                                        members, num_members,
 960                                                        pp_alias_rids,
 961                                                        p_num_alias_rids);
 962 }
 963
 964 NTSTATUS pdb_lookup_rids(const DOM_SID *domain_sid,
 965                          int num_rids,
 966                          uint32 *rids,
 967                          const char **names,
 968                          enum lsa_SidType *attrs)
 969 {
 970         struct pdb_methods *pdb = pdb_get_methods();
 971         return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
 972 }
 973
 974 /*
 975  * NOTE: pdb_lookup_names is currently (2007-01-12) not used anywhere
 976  *       in the samba code.
 977  *       Unlike _lsa_lookup_sids and _samr_lookup_rids, which eventually
 978  *       also ask pdb_lookup_rids, thus looking up a bunch of rids at a time,
 979  *       the pdb_ calls _lsa_lookup_names and _samr_lookup_names come
 980  *       down to are pdb_getsampwnam and pdb_getgrnam instead of
 981  *       pdb_lookup_names.
 982  *       But in principle, it the call belongs to the API and might get
 983  *       used in this context some day.
 984  */
 985 #if 0
 986 NTSTATUS pdb_lookup_names(const DOM_SID *domain_sid,
 987                           int num_names,
 988                           const char **names,
 989                           uint32 *rids,
 990                           enum lsa_SidType *attrs)
 991 {
 992         struct pdb_methods *pdb = pdb_get_methods();
 993         return pdb->lookup_names(pdb, domain_sid, num_names, names, rids, attrs);
 994 }
 995 #endif
 996
 997 bool pdb_get_account_policy(enum pdb_policy_type type, uint32_t *value)
 998 {
 999         struct pdb_methods *pdb = pdb_get_methods();
1000         NTSTATUS status;
1001
1002         become_root();
1003         status = pdb->get_account_policy(pdb, type, value);
1004         unbecome_root();
1005
1006         return NT_STATUS_IS_OK(status);
1007 }
1008
1009 bool pdb_set_account_policy(enum pdb_policy_type type, uint32_t value)
1010 {
1011         struct pdb_methods *pdb = pdb_get_methods();
1012         NTSTATUS status;
1013
1014         become_root();
1015         status = pdb->set_account_policy(pdb, type, value);
1016         unbecome_root();
1017
1018         return NT_STATUS_IS_OK(status);
1019 }
1020
1021 bool pdb_get_seq_num(time_t *seq_num)
1022 {
1023         struct pdb_methods *pdb = pdb_get_methods();
1024         return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
1025 }
1026
1027 bool pdb_uid_to_rid(uid_t uid, uint32 *rid)
1028 {
1029         struct pdb_methods *pdb = pdb_get_methods();
1030         return pdb->uid_to_rid(pdb, uid, rid);
1031 }
1032
1033 bool pdb_uid_to_sid(uid_t uid, DOM_SID *sid)
1034 {
1035         struct pdb_methods *pdb = pdb_get_methods();
1036         return pdb->uid_to_sid(pdb, uid, sid);
1037 }
1038
1039 bool pdb_gid_to_sid(gid_t gid, DOM_SID *sid)
1040 {
1041         struct pdb_methods *pdb = pdb_get_methods();
1042         return pdb->gid_to_sid(pdb, gid, sid);
1043 }
1044
1045 bool pdb_sid_to_id(const DOM_SID *sid, union unid_t *id,
1046                    enum lsa_SidType *type)
1047 {
1048         struct pdb_methods *pdb = pdb_get_methods();
1049         return pdb->sid_to_id(pdb, sid, id, type);
1050 }
1051
1052 uint32_t pdb_capabilities(void)
1053 {
1054         struct pdb_methods *pdb = pdb_get_methods();
1055         return pdb->capabilities(pdb);
1056 }
1057
1058 /********************************************************************
1059  Allocate a new RID from the passdb backend.  Verify that it is free
1060  by calling lookup_global_sam_rid() to verify that the RID is not
1061  in use.  This handles servers that have existing users or groups
1062  with add RIDs (assigned from previous algorithmic mappings)
1063 ********************************************************************/
1064
1065 bool pdb_new_rid(uint32 *rid)
1066 {
1067         struct pdb_methods *pdb = pdb_get_methods();
1068         const char *name = NULL;
1069         enum lsa_SidType type;
1070         uint32 allocated_rid = 0;
1071         int i;
1072         TALLOC_CTX *ctx;
1073
1074         if ((pdb_capabilities() & PDB_CAP_STORE_RIDS) == 0) {
1075                 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1076                           "are active\n"));
1077                 return False;
1078         }
1079
1080         if (algorithmic_rid_base() != BASE_RID) {
1081                 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1082                           "without algorithmic RIDs is chosen.\n"));
1083                 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1084                              "add', set the maximum used RID\n"));
1085                 DEBUGADD(0, ("and remove the parameter\n"));
1086                 return False;
1087         }
1088
1089         if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1090                 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1091                 return False;
1092         }
1093
1094         /* Attempt to get an unused RID (max tires is 250...yes that it is
1095            and arbitrary number I pulkled out of my head).   -- jerry */
1096
1097         for ( i=0; allocated_rid==0 && i<250; i++ ) {
1098                 /* get a new RID */
1099
1100                 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1101                         return False;
1102                 }
1103
1104                 /* validate that the RID is not in use */
1105
1106                 if ( lookup_global_sam_rid( ctx, allocated_rid, &name, &type, NULL ) ) {
1107                         allocated_rid = 0;
1108                 }
1109         }
1110
1111         TALLOC_FREE( ctx );
1112
1113         if ( allocated_rid == 0 ) {
1114                 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1115                 return False;
1116         }
1117
1118         *rid = allocated_rid;
1119
1120         return True;
1121 }
1122
1123 /***************************************************************
1124   Initialize the static context (at smbd startup etc).
1125
1126   If uninitialised, context will auto-init on first use.
1127  ***************************************************************/
1128
1129 bool initialize_password_db(bool reload, struct event_context *event_ctx)
1130 {
1131         pdb_event_ctx = event_ctx;
1132         return (pdb_get_methods_reload(reload) != NULL);
1133 }
1134
1135
1136 /***************************************************************************
1137   Default implementations of some functions.
1138  ****************************************************************************/
1139
1140 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1141 {
1142         return NT_STATUS_NO_SUCH_USER;
1143 }
1144
1145 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const DOM_SID *sid)
1146 {
1147         return NT_STATUS_NO_SUCH_USER;
1148 }
1149
1150 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1151 {
1152         return NT_STATUS_NOT_IMPLEMENTED;
1153 }
1154
1155 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1156 {
1157         return NT_STATUS_NOT_IMPLEMENTED;
1158 }
1159
1160 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1161 {
1162         return NT_STATUS_NOT_IMPLEMENTED;
1163 }
1164
1165 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1166 {
1167         return NT_STATUS_NOT_IMPLEMENTED;
1168 }
1169
1170 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, bool success)
1171 {
1172         /* Only the pdb_nds backend implements this, by
1173          * default just return ok. */
1174         return NT_STATUS_OK;
1175 }
1176
1177 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t *value)
1178 {
1179         return account_policy_get(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1180 }
1181
1182 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t value)
1183 {
1184         return account_policy_set(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1185 }
1186
1187 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1188 {
1189         *seq_num = time(NULL);
1190         return NT_STATUS_OK;
1191 }
1192
1193 static bool pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid,
1194                                    DOM_SID *sid)
1195 {
1196         struct samu *sampw = NULL;
1197         struct passwd *unix_pw;
1198         bool ret;
1199
1200         unix_pw = sys_getpwuid( uid );
1201
1202         if ( !unix_pw ) {
1203                 DEBUG(4,("pdb_default_uid_to_rid: host has no idea of uid "
1204                          "%lu\n", (unsigned long)uid));
1205                 return False;
1206         }
1207
1208         if ( !(sampw = samu_new( NULL )) ) {
1209                 DEBUG(0,("pdb_default_uid_to_rid: samu_new() failed!\n"));
1210                 return False;
1211         }
1212
1213         become_root();
1214         ret = NT_STATUS_IS_OK(
1215                 methods->getsampwnam(methods, sampw, unix_pw->pw_name ));
1216         unbecome_root();
1217
1218         if (!ret) {
1219                 DEBUG(5, ("pdb_default_uid_to_rid: Did not find user "
1220                           "%s (%u)\n", unix_pw->pw_name, (unsigned int)uid));
1221                 TALLOC_FREE(sampw);
1222                 return False;
1223         }
1224
1225         sid_copy(sid, pdb_get_user_sid(sampw));
1226
1227         TALLOC_FREE(sampw);
1228
1229         return True;
1230 }
1231
1232 static bool pdb_default_uid_to_rid(struct pdb_methods *methods, uid_t uid,
1233                                    uint32 *rid)
1234 {
1235         DOM_SID sid;
1236         bool ret;
1237
1238         ret = pdb_default_uid_to_sid(methods, uid, &sid);
1239         if (!ret) {
1240                 return ret;
1241         }
1242
1243         ret = sid_peek_check_rid(get_global_sam_sid(), &sid, rid);
1244
1245         if (!ret) {
1246                 DEBUG(1, ("Could not peek rid out of sid %s\n",
1247                           sid_string_dbg(&sid)));
1248         }
1249
1250         return ret;
1251 }
1252
1253 static bool pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1254                                    DOM_SID *sid)
1255 {
1256         GROUP_MAP map;
1257
1258         if (!NT_STATUS_IS_OK(methods->getgrgid(methods, &map, gid))) {
1259                 return False;
1260         }
1261
1262         sid_copy(sid, &map.sid);
1263         return True;
1264 }
1265
1266 static bool pdb_default_sid_to_id(struct pdb_methods *methods,
1267                                   const DOM_SID *sid,
1268                                   union unid_t *id, enum lsa_SidType *type)
1269 {
1270         TALLOC_CTX *mem_ctx;
1271         bool ret = False;
1272         const char *name;
1273         uint32 rid;
1274
1275         mem_ctx = talloc_new(NULL);
1276
1277         if (mem_ctx == NULL) {
1278                 DEBUG(0, ("talloc_new failed\n"));
1279                 return False;
1280         }
1281
1282         if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1283                 /* Here we might have users as well as groups and aliases */
1284                 ret = lookup_global_sam_rid(mem_ctx, rid, &name, type, id);
1285                 goto done;
1286         }
1287
1288         /* check for "Unix User" */
1289
1290         if ( sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid) ) {
1291                 id->uid = rid;
1292                 *type = SID_NAME_USER;
1293                 ret = True;
1294                 goto done;
1295         }
1296
1297         /* check for "Unix Group" */
1298
1299         if ( sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid) ) {
1300                 id->gid = rid;
1301                 *type = SID_NAME_ALIAS;
1302                 ret = True;
1303                 goto done;
1304         }
1305
1306         /* BUILTIN */
1307
1308         if (sid_check_is_in_builtin(sid) ||
1309             sid_check_is_in_wellknown_domain(sid)) {
1310                 /* Here we only have aliases */
1311                 GROUP_MAP map;
1312                 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, &map, *sid))) {
1313                         DEBUG(10, ("Could not find map for sid %s\n",
1314                                    sid_string_dbg(sid)));
1315                         goto done;
1316                 }
1317                 if ((map.sid_name_use != SID_NAME_ALIAS) &&
1318                     (map.sid_name_use != SID_NAME_WKN_GRP)) {
1319                         DEBUG(10, ("Map for sid %s is a %s, expected an "
1320                                    "alias\n", sid_string_dbg(sid),
1321                                    sid_type_lookup(map.sid_name_use)));
1322                         goto done;
1323                 }
1324
1325                 id->gid = map.gid;
1326                 *type = SID_NAME_ALIAS;
1327                 ret = True;
1328                 goto done;
1329         }
1330
1331         DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n",
1332                   sid_string_dbg(sid)));
1333
1334  done:
1335
1336         TALLOC_FREE(mem_ctx);
1337         return ret;
1338 }
1339
1340 static bool get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, size_t *p_num)
1341 {
1342         struct group *grp;
1343         char **gr;
1344         struct passwd *pwd;
1345         bool winbind_env;
1346         bool ret = False;
1347
1348         *pp_uids = NULL;
1349         *p_num = 0;
1350
1351         /* We only look at our own sam, so don't care about imported stuff */
1352         winbind_env = winbind_env_set();
1353         (void)winbind_off();
1354
1355         if ((grp = getgrgid(gid)) == NULL) {
1356                 /* allow winbindd lookups, but only if they weren't already disabled */
1357                 goto done;
1358         }
1359
1360         /* Primary group members */
1361         setpwent();
1362         while ((pwd = getpwent()) != NULL) {
1363                 if (pwd->pw_gid == gid) {
1364                         if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1365                                                 pp_uids, p_num)) {
1366                                 goto done;
1367                         }
1368                 }
1369         }
1370         endpwent();
1371
1372         /* Secondary group members */
1373         for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1374                 struct passwd *pw = getpwnam(*gr);
1375
1376                 if (pw == NULL)
1377                         continue;
1378                 if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) {
1379                         goto done;
1380                 }
1381         }
1382
1383         ret = True;
1384
1385   done:
1386
1387         /* allow winbindd lookups, but only if they weren't already disabled */
1388         if (!winbind_env) {
1389                 (void)winbind_on();
1390         }
1391
1392         return ret;
1393 }
1394
1395 static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1396                                                TALLOC_CTX *mem_ctx,
1397                                                const DOM_SID *group,
1398                                                uint32 **pp_member_rids,
1399                                                size_t *p_num_members)
1400 {
1401         gid_t gid;
1402         uid_t *uids;
1403         size_t i, num_uids;
1404
1405         *pp_member_rids = NULL;
1406         *p_num_members = 0;
1407
1408         if (!sid_to_gid(group, &gid))
1409                 return NT_STATUS_NO_SUCH_GROUP;
1410
1411         if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1412                 return NT_STATUS_NO_SUCH_GROUP;
1413
1414         if (num_uids == 0)
1415                 return NT_STATUS_OK;
1416
1417         *pp_member_rids = TALLOC_ZERO_ARRAY(mem_ctx, uint32, num_uids);
1418
1419         for (i=0; i<num_uids; i++) {
1420                 DOM_SID sid;
1421
1422                 uid_to_sid(&sid, uids[i]);
1423
1424                 if (!sid_check_is_in_our_domain(&sid)) {
1425                         DEBUG(5, ("Inconsistent SAM -- group member uid not "
1426                                   "in our domain\n"));
1427                         continue;
1428                 }
1429
1430                 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1431                 *p_num_members += 1;
1432         }
1433
1434         return NT_STATUS_OK;
1435 }
1436
1437 static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1438                                                    TALLOC_CTX *mem_ctx,
1439                                                    struct samu *user,
1440                                                    DOM_SID **pp_sids,
1441                                                    gid_t **pp_gids,
1442                                                    size_t *p_num_groups)
1443 {
1444         size_t i;
1445         gid_t gid;
1446         struct passwd *pw;
1447         const char *username = pdb_get_username(user);
1448
1449
1450         /* Ignore the primary group SID.  Honor the real Unix primary group.
1451            The primary group SID is only of real use to Windows clients */
1452
1453         if ( !(pw = getpwnam_alloc(mem_ctx, username)) ) {
1454                 return NT_STATUS_NO_SUCH_USER;
1455         }
1456
1457         gid = pw->pw_gid;
1458
1459         TALLOC_FREE( pw );
1460
1461         if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1462                 return NT_STATUS_NO_SUCH_USER;
1463         }
1464
1465         if (*p_num_groups == 0) {
1466                 smb_panic("primary group missing");
1467         }
1468
1469         *pp_sids = TALLOC_ARRAY(mem_ctx, DOM_SID, *p_num_groups);
1470
1471         if (*pp_sids == NULL) {
1472                 TALLOC_FREE(*pp_gids);
1473                 return NT_STATUS_NO_MEMORY;
1474         }
1475
1476         for (i=0; i<*p_num_groups; i++) {
1477                 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1478         }
1479
1480         return NT_STATUS_OK;
1481 }
1482
1483 /*******************************************************************
1484  Look up a rid in the SAM we're responsible for (i.e. passdb)
1485  ********************************************************************/
1486
1487 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32 rid,
1488                                   const char **name,
1489                                   enum lsa_SidType *psid_name_use,
1490                                   union unid_t *unix_id)
1491 {
1492         struct samu *sam_account = NULL;
1493         GROUP_MAP map;
1494         bool ret;
1495         DOM_SID sid;
1496
1497         *psid_name_use = SID_NAME_UNKNOWN;
1498
1499         DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1500                  (unsigned int)rid));
1501
1502         sid_copy(&sid, get_global_sam_sid());
1503         sid_append_rid(&sid, rid);
1504
1505         /* see if the passdb can help us with the name of the user */
1506
1507         if ( !(sam_account = samu_new( NULL )) ) {
1508                 return False;
1509         }
1510
1511         /* BEING ROOT BLLOCK */
1512         become_root();
1513         if (pdb_getsampwsid(sam_account, &sid)) {
1514                 struct passwd *pw;
1515
1516                 unbecome_root();                /* -----> EXIT BECOME_ROOT() */
1517                 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1518                 if (!*name) {
1519                         TALLOC_FREE(sam_account);
1520                         return False;
1521                 }
1522
1523                 *psid_name_use = SID_NAME_USER;
1524
1525                 TALLOC_FREE(sam_account);
1526
1527                 if (unix_id == NULL) {
1528                         return True;
1529                 }
1530
1531                 pw = Get_Pwnam_alloc(talloc_tos(), *name);
1532                 if (pw == NULL) {
1533                         return False;
1534                 }
1535                 unix_id->uid = pw->pw_uid;
1536                 TALLOC_FREE(pw);
1537                 return True;
1538         }
1539         TALLOC_FREE(sam_account);
1540
1541         ret = pdb_getgrsid(&map, sid);
1542         unbecome_root();
1543         /* END BECOME_ROOT BLOCK */
1544
1545         /* do not resolve SIDs to a name unless there is a valid
1546            gid associated with it */
1547
1548         if ( ret && (map.gid != (gid_t)-1) ) {
1549                 *name = talloc_strdup(mem_ctx, map.nt_name);
1550                 *psid_name_use = map.sid_name_use;
1551
1552                 if ( unix_id ) {
1553                         unix_id->gid = map.gid;
1554                 }
1555
1556                 return True;
1557         }
1558
1559         /* Windows will always map RID 513 to something.  On a non-domain
1560            controller, this gets mapped to SERVER\None. */
1561
1562         if ( unix_id ) {
1563                 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1564                 return False;
1565         }
1566
1567         if ( rid == DOMAIN_GROUP_RID_USERS ) {
1568                 *name = talloc_strdup(mem_ctx, "None" );
1569                 *psid_name_use = SID_NAME_DOM_GRP;
1570
1571                 return True;
1572         }
1573
1574         return False;
1575 }
1576
1577 static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1578                                         const DOM_SID *domain_sid,
1579                                         int num_rids,
1580                                         uint32 *rids,
1581                                         const char **names,
1582                                         enum lsa_SidType *attrs)
1583 {
1584         int i;
1585         NTSTATUS result;
1586         bool have_mapped = False;
1587         bool have_unmapped = False;
1588
1589         if (sid_check_is_builtin(domain_sid)) {
1590
1591                 for (i=0; i<num_rids; i++) {
1592                         const char *name;
1593
1594                         if (lookup_builtin_rid(names, rids[i], &name)) {
1595                                 attrs[i] = SID_NAME_ALIAS;
1596                                 names[i] = name;
1597                                 DEBUG(5,("lookup_rids: %s:%d\n",
1598                                          names[i], attrs[i]));
1599                                 have_mapped = True;
1600                         } else {
1601                                 have_unmapped = True;
1602                                 attrs[i] = SID_NAME_UNKNOWN;
1603                         }
1604                 }
1605                 goto done;
1606         }
1607
1608         /* Should not happen, but better check once too many */
1609         if (!sid_check_is_domain(domain_sid)) {
1610                 return NT_STATUS_INVALID_HANDLE;
1611         }
1612
1613         for (i = 0; i < num_rids; i++) {
1614                 const char *name;
1615
1616                 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1617                                           NULL)) {
1618                         if (name == NULL) {
1619                                 return NT_STATUS_NO_MEMORY;
1620                         }
1621                         names[i] = name;
1622                         DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1623                         have_mapped = True;
1624                 } else {
1625                         have_unmapped = True;
1626                         attrs[i] = SID_NAME_UNKNOWN;
1627                 }
1628         }
1629
1630  done:
1631
1632         result = NT_STATUS_NONE_MAPPED;
1633
1634         if (have_mapped)
1635                 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1636
1637         return result;
1638 }
1639
1640 #if 0
1641 static NTSTATUS pdb_default_lookup_names(struct pdb_methods *methods,
1642                                          const DOM_SID *domain_sid,
1643                                          int num_names,
1644                                          const char **names,
1645                                          uint32 *rids,
1646                                          enum lsa_SidType *attrs)
1647 {
1648         int i;
1649         NTSTATUS result;
1650         bool have_mapped = False;
1651         bool have_unmapped = False;
1652
1653         if (sid_check_is_builtin(domain_sid)) {
1654
1655                 for (i=0; i<num_names; i++) {
1656                         uint32 rid;
1657
1658                         if (lookup_builtin_name(names[i], &rid)) {
1659                                 attrs[i] = SID_NAME_ALIAS;
1660                                 rids[i] = rid;
1661                                 DEBUG(5,("lookup_rids: %s:%d\n",
1662                                          names[i], attrs[i]));
1663                                 have_mapped = True;
1664                         } else {
1665                                 have_unmapped = True;
1666                                 attrs[i] = SID_NAME_UNKNOWN;
1667                         }
1668                 }
1669                 goto done;
1670         }
1671
1672         /* Should not happen, but better check once too many */
1673         if (!sid_check_is_domain(domain_sid)) {
1674                 return NT_STATUS_INVALID_HANDLE;
1675         }
1676
1677         for (i = 0; i < num_names; i++) {
1678                 if (lookup_global_sam_name(names[i], 0, &rids[i], &attrs[i])) {
1679                         DEBUG(5,("lookup_names: %s-> %d:%d\n", names[i],
1680                                  rids[i], attrs[i]));
1681                         have_mapped = True;
1682                 } else {
1683                         have_unmapped = True;
1684                         attrs[i] = SID_NAME_UNKNOWN;
1685                 }
1686         }
1687
1688  done:
1689
1690         result = NT_STATUS_NONE_MAPPED;
1691
1692         if (have_mapped)
1693                 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1694
1695         return result;
1696 }
1697 #endif
1698
1699 static int pdb_search_destructor(struct pdb_search *search)
1700 {
1701         if ((!search->search_ended) && (search->search_end != NULL)) {
1702                 search->search_end(search);
1703         }
1704         return 0;
1705 }
1706
1707 struct pdb_search *pdb_search_init(TALLOC_CTX *mem_ctx,
1708                                    enum pdb_search_type type)
1709 {
1710         struct pdb_search *result;
1711
1712         result = talloc(mem_ctx, struct pdb_search);
1713         if (result == NULL) {
1714                 DEBUG(0, ("talloc failed\n"));
1715                 return NULL;
1716         }
1717
1718         result->type = type;
1719         result->cache = NULL;
1720         result->num_entries = 0;
1721         result->cache_size = 0;
1722         result->search_ended = False;
1723         result->search_end = NULL;
1724
1725         /* Segfault appropriately if not initialized */
1726         result->next_entry = NULL;
1727         result->search_end = NULL;
1728
1729         talloc_set_destructor(result, pdb_search_destructor);
1730
1731         return result;
1732 }
1733
1734 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32 rid,
1735                               uint16 acct_flags,
1736                               const char *account_name,
1737                               const char *fullname,
1738                               const char *description,
1739                               struct samr_displayentry *entry)
1740 {
1741         entry->rid = rid;
1742         entry->acct_flags = acct_flags;
1743
1744         if (account_name != NULL)
1745                 entry->account_name = talloc_strdup(mem_ctx, account_name);
1746         else
1747                 entry->account_name = "";
1748
1749         if (fullname != NULL)
1750                 entry->fullname = talloc_strdup(mem_ctx, fullname);
1751         else
1752                 entry->fullname = "";
1753
1754         if (description != NULL)
1755                 entry->description = talloc_strdup(mem_ctx, description);
1756         else
1757                 entry->description = "";
1758 }
1759
1760 struct group_search {
1761         GROUP_MAP *groups;
1762         size_t num_groups, current_group;
1763 };
1764
1765 static bool next_entry_groups(struct pdb_search *s,
1766                               struct samr_displayentry *entry)
1767 {
1768         struct group_search *state = (struct group_search *)s->private_data;
1769         uint32 rid;
1770         GROUP_MAP *map = &state->groups[state->current_group];
1771
1772         if (state->current_group == state->num_groups)
1773                 return False;
1774
1775         sid_peek_rid(&map->sid, &rid);
1776
1777         fill_displayentry(s, rid, 0, map->nt_name, NULL, map->comment, entry);
1778
1779         state->current_group += 1;
1780         return True;
1781 }
1782
1783 static void search_end_groups(struct pdb_search *search)
1784 {
1785         struct group_search *state =
1786                 (struct group_search *)search->private_data;
1787         SAFE_FREE(state->groups);
1788 }
1789
1790 static bool pdb_search_grouptype(struct pdb_search *search,
1791                                  const DOM_SID *sid, enum lsa_SidType type)
1792 {
1793         struct group_search *state;
1794
1795         state = talloc(search, struct group_search);
1796         if (state == NULL) {
1797                 DEBUG(0, ("talloc failed\n"));
1798                 return False;
1799         }
1800
1801         if (!pdb_enum_group_mapping(sid, type, &state->groups, &state->num_groups,
1802                                     True)) {
1803                 DEBUG(0, ("Could not enum groups\n"));
1804                 return False;
1805         }
1806
1807         state->current_group = 0;
1808         search->private_data = state;
1809         search->next_entry = next_entry_groups;
1810         search->search_end = search_end_groups;
1811         return True;
1812 }
1813
1814 static bool pdb_default_search_groups(struct pdb_methods *methods,
1815                                       struct pdb_search *search)
1816 {
1817         return pdb_search_grouptype(search, get_global_sam_sid(), SID_NAME_DOM_GRP);
1818 }
1819
1820 static bool pdb_default_search_aliases(struct pdb_methods *methods,
1821                                        struct pdb_search *search,
1822                                        const DOM_SID *sid)
1823 {
1824
1825         return pdb_search_grouptype(search, sid, SID_NAME_ALIAS);
1826 }
1827
1828 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
1829                                                      uint32 idx)
1830 {
1831         if (idx < search->num_entries)
1832                 return &search->cache[idx];
1833
1834         if (search->search_ended)
1835                 return NULL;
1836
1837         while (idx >= search->num_entries) {
1838                 struct samr_displayentry entry;
1839
1840                 if (!search->next_entry(search, &entry)) {
1841                         search->search_end(search);
1842                         search->search_ended = True;
1843                         break;
1844                 }
1845
1846                 ADD_TO_LARGE_ARRAY(search, struct samr_displayentry,
1847                                    entry, &search->cache, &search->num_entries,
1848                                    &search->cache_size);
1849         }
1850
1851         return (search->num_entries > idx) ? &search->cache[idx] : NULL;
1852 }
1853
1854 struct pdb_search *pdb_search_users(TALLOC_CTX *mem_ctx, uint32 acct_flags)
1855 {
1856         struct pdb_methods *pdb = pdb_get_methods();
1857         struct pdb_search *result;
1858
1859         result = pdb_search_init(mem_ctx, PDB_USER_SEARCH);
1860         if (result == NULL) {
1861                 return NULL;
1862         }
1863
1864         if (!pdb->search_users(pdb, result, acct_flags)) {
1865                 TALLOC_FREE(result);
1866                 return NULL;
1867         }
1868         return result;
1869 }
1870
1871 struct pdb_search *pdb_search_groups(TALLOC_CTX *mem_ctx)
1872 {
1873         struct pdb_methods *pdb = pdb_get_methods();
1874         struct pdb_search *result;
1875
1876         result = pdb_search_init(mem_ctx, PDB_GROUP_SEARCH);
1877         if (result == NULL) {
1878                  return NULL;
1879         }
1880
1881         if (!pdb->search_groups(pdb, result)) {
1882                 TALLOC_FREE(result);
1883                 return NULL;
1884         }
1885         return result;
1886 }
1887
1888 struct pdb_search *pdb_search_aliases(TALLOC_CTX *mem_ctx, const DOM_SID *sid)
1889 {
1890         struct pdb_methods *pdb = pdb_get_methods();
1891         struct pdb_search *result;
1892
1893         if (pdb == NULL) return NULL;
1894
1895         result = pdb_search_init(mem_ctx, PDB_ALIAS_SEARCH);
1896         if (result == NULL) {
1897                 return NULL;
1898         }
1899
1900         if (!pdb->search_aliases(pdb, result, sid)) {
1901                 TALLOC_FREE(result);
1902                 return NULL;
1903         }
1904         return result;
1905 }
1906
1907 uint32 pdb_search_entries(struct pdb_search *search,
1908                           uint32 start_idx, uint32 max_entries,
1909                           struct samr_displayentry **result)
1910 {
1911         struct samr_displayentry *end_entry;
1912         uint32 end_idx = start_idx+max_entries-1;
1913
1914         /* The first entry needs to be searched after the last. Otherwise the
1915          * first entry might have moved due to a realloc during the search for
1916          * the last entry. */
1917
1918         end_entry = pdb_search_getentry(search, end_idx);
1919         *result = pdb_search_getentry(search, start_idx);
1920
1921         if (end_entry != NULL)
1922                 return max_entries;
1923
1924         if (start_idx >= search->num_entries)
1925                 return 0;
1926
1927         return search->num_entries - start_idx;
1928 }
1929
1930 /*******************************************************************
1931  trustdom methods
1932  *******************************************************************/
1933
1934 bool pdb_get_trusteddom_pw(const char *domain, char** pwd, DOM_SID *sid,
1935                            time_t *pass_last_set_time)
1936 {
1937         struct pdb_methods *pdb = pdb_get_methods();
1938         return pdb->get_trusteddom_pw(pdb, domain, pwd, sid,
1939                         pass_last_set_time);
1940 }
1941
1942 bool pdb_set_trusteddom_pw(const char* domain, const char* pwd,
1943                            const DOM_SID *sid)
1944 {
1945         struct pdb_methods *pdb = pdb_get_methods();
1946         return pdb->set_trusteddom_pw(pdb, domain, pwd, sid);
1947 }
1948
1949 bool pdb_del_trusteddom_pw(const char *domain)
1950 {
1951         struct pdb_methods *pdb = pdb_get_methods();
1952         return pdb->del_trusteddom_pw(pdb, domain);
1953 }
1954
1955 NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32 *num_domains,
1956                               struct trustdom_info ***domains)
1957 {
1958         struct pdb_methods *pdb = pdb_get_methods();
1959         return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains);
1960 }
1961
1962 /*******************************************************************
1963  the defaults for trustdom methods:
1964  these simply call the original passdb/secrets.c actions,
1965  to be replaced by pdb_ldap.
1966  *******************************************************************/
1967
1968 static bool pdb_default_get_trusteddom_pw(struct pdb_methods *methods,
1969                                           const char *domain,
1970                                           char** pwd,
1971                                           DOM_SID *sid,
1972                                           time_t *pass_last_set_time)
1973 {
1974         return secrets_fetch_trusted_domain_password(domain, pwd,
1975                                 sid, pass_last_set_time);
1976
1977 }
1978
1979 static bool pdb_default_set_trusteddom_pw(struct pdb_methods *methods,
1980                                           const char* domain,
1981                                           const char* pwd,
1982                                           const DOM_SID *sid)
1983 {
1984         return secrets_store_trusted_domain_password(domain, pwd, sid);
1985 }
1986
1987 static bool pdb_default_del_trusteddom_pw(struct pdb_methods *methods,
1988                                           const char *domain)
1989 {
1990         return trusted_domain_password_delete(domain);
1991 }
1992
1993 static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods,
1994                                              TALLOC_CTX *mem_ctx,
1995                                              uint32 *num_domains,
1996                                              struct trustdom_info ***domains)
1997 {
1998         return secrets_trusted_domains(mem_ctx, num_domains, domains);
1999 }
2000
2001 static struct pdb_domain_info *pdb_default_get_domain_info(
2002         struct pdb_methods *m, TALLOC_CTX *mem_ctx)
2003 {
2004         return NULL;
2005 }
2006
2007 /*******************************************************************
2008  Create a pdb_methods structure and initialize it with the default
2009  operations.  In this way a passdb module can simply implement
2010  the functionality it cares about.  However, normally this is done
2011  in groups of related functions.
2012 *******************************************************************/
2013
2014 NTSTATUS make_pdb_method( struct pdb_methods **methods )
2015 {
2016         /* allocate memory for the structure as its own talloc CTX */
2017
2018         *methods = talloc_zero(talloc_autofree_context(), struct pdb_methods);
2019         if (*methods == NULL) {
2020                 return NT_STATUS_NO_MEMORY;
2021         }
2022
2023         (*methods)->get_domain_info = pdb_default_get_domain_info;
2024         (*methods)->getsampwnam = pdb_default_getsampwnam;
2025         (*methods)->getsampwsid = pdb_default_getsampwsid;
2026         (*methods)->create_user = pdb_default_create_user;
2027         (*methods)->delete_user = pdb_default_delete_user;
2028         (*methods)->add_sam_account = pdb_default_add_sam_account;
2029         (*methods)->update_sam_account = pdb_default_update_sam_account;
2030         (*methods)->delete_sam_account = pdb_default_delete_sam_account;
2031         (*methods)->rename_sam_account = pdb_default_rename_sam_account;
2032         (*methods)->update_login_attempts = pdb_default_update_login_attempts;
2033
2034         (*methods)->getgrsid = pdb_default_getgrsid;
2035         (*methods)->getgrgid = pdb_default_getgrgid;
2036         (*methods)->getgrnam = pdb_default_getgrnam;
2037         (*methods)->create_dom_group = pdb_default_create_dom_group;
2038         (*methods)->delete_dom_group = pdb_default_delete_dom_group;
2039         (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
2040         (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
2041         (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
2042         (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
2043         (*methods)->enum_group_members = pdb_default_enum_group_members;
2044         (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
2045         (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2046         (*methods)->add_groupmem = pdb_default_add_groupmem;
2047         (*methods)->del_groupmem = pdb_default_del_groupmem;
2048         (*methods)->create_alias = pdb_default_create_alias;
2049         (*methods)->delete_alias = pdb_default_delete_alias;
2050         (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2051         (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2052         (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2053         (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2054         (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2055         (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2056         (*methods)->lookup_rids = pdb_default_lookup_rids;
2057         (*methods)->get_account_policy = pdb_default_get_account_policy;
2058         (*methods)->set_account_policy = pdb_default_set_account_policy;
2059         (*methods)->get_seq_num = pdb_default_get_seq_num;
2060         (*methods)->uid_to_rid = pdb_default_uid_to_rid;
2061         (*methods)->uid_to_sid = pdb_default_uid_to_sid;
2062         (*methods)->gid_to_sid = pdb_default_gid_to_sid;
2063         (*methods)->sid_to_id = pdb_default_sid_to_id;
2064
2065         (*methods)->search_groups = pdb_default_search_groups;
2066         (*methods)->search_aliases = pdb_default_search_aliases;
2067
2068         (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw;
2069         (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw;
2070         (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw;
2071         (*methods)->enum_trusteddoms  = pdb_default_enum_trusteddoms;
2072
2073         return NT_STATUS_OK;
2074 }