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 #include "system/passwd.h"
  25 #include "passdb.h"
  26 #include "secrets.h"
  27 #include "messages.h"
  28 #include "../librpc/gen_ndr/samr.h"
  29 #include "../librpc/gen_ndr/drsblobs.h"
  30 #include "../librpc/gen_ndr/ndr_drsblobs.h"
  31 #include "../librpc/gen_ndr/idmap.h"
  32 #include "../lib/util/memcache.h"
  33 #include "nsswitch/winbind_client.h"
  34 #include "../libcli/security/security.h"
  35 #include "../lib/util/util_pw.h"
  36 #include "passdb/pdb_secrets.h"
  37 #include "lib/util_sid_passdb.h"
  38 #include "idmap_cache.h"
  39
  40 #undef DBGC_CLASS
  41 #define DBGC_CLASS DBGC_PASSDB
  42
  43 static_decl_pdb;
  44
  45 static struct pdb_init_function_entry *backends = NULL;
  46
  47 static void lazy_initialize_passdb(void)
  48 {
  49         static bool initialized = False;
  50         if(initialized) {
  51                 return;
  52         }
  53         static_init_pdb;
  54         initialized = True;
  55 }
  56
  57 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32 rid,
  58                                   const char **name,
  59                                   enum lsa_SidType *psid_name_use,
  60                                   uid_t *uid, gid_t *gid);
  61
  62 NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
  63 {
  64         struct pdb_init_function_entry *entry = backends;
  65
  66         if(version != PASSDB_INTERFACE_VERSION) {
  67                 DEBUG(0,("Can't register passdb backend!\n"
  68                          "You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
  69                          "while this version of samba uses version %d\n",
  70                          version,PASSDB_INTERFACE_VERSION));
  71                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
  72         }
  73
  74         if (!name || !init) {
  75                 return NT_STATUS_INVALID_PARAMETER;
  76         }
  77
  78         DEBUG(5,("Attempting to register passdb backend %s\n", name));
  79
  80         /* Check for duplicates */
  81         if (pdb_find_backend_entry(name)) {
  82                 DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
  83                 return NT_STATUS_OBJECT_NAME_COLLISION;
  84         }
  85
  86         entry = SMB_XMALLOC_P(struct pdb_init_function_entry);
  87         entry->name = smb_xstrdup(name);
  88         entry->init = init;
  89
  90         DLIST_ADD(backends, entry);
  91         DEBUG(5,("Successfully added passdb backend '%s'\n", name));
  92         return NT_STATUS_OK;
  93 }
  94
  95 struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
  96 {
  97         struct pdb_init_function_entry *entry = backends;
  98
  99         while(entry) {
 100                 if (strcmp(entry->name, name)==0) return entry;
 101                 entry = entry->next;
 102         }
 103
 104         return NULL;
 105 }
 106
 107 const struct pdb_init_function_entry *pdb_get_backends(void)
 108 {
 109         return backends;
 110 }
 111
 112
 113 /*
 114  * The event context for the passdb backend. I know this is a bad hack and yet
 115  * another static variable, but our pdb API is a global thing per
 116  * definition. The first use for this is the LDAP idle function, more might be
 117  * added later.
 118  *
 119  * I don't feel too bad about this static variable, it replaces the
 120  * smb_idle_event_list that used to exist in lib/module.c.  -- VL
 121  */
 122
 123 static struct tevent_context *pdb_tevent_ctx;
 124
 125 struct tevent_context *pdb_get_tevent_context(void)
 126 {
 127         return pdb_tevent_ctx;
 128 }
 129
 130 /******************************************************************
 131   Make a pdb_methods from scratch
 132  *******************************************************************/
 133
 134 NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected)
 135 {
 136         char *module_name = smb_xstrdup(selected);
 137         char *module_location = NULL, *p;
 138         struct pdb_init_function_entry *entry;
 139         NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
 140
 141         lazy_initialize_passdb();
 142
 143         p = strchr(module_name, ':');
 144
 145         if (p) {
 146                 *p = 0;
 147                 module_location = p+1;
 148                 trim_char(module_location, ' ', ' ');
 149         }
 150
 151         trim_char(module_name, ' ', ' ');
 152
 153
 154         DEBUG(5,("Attempting to find a passdb backend to match %s (%s)\n", selected, module_name));
 155
 156         entry = pdb_find_backend_entry(module_name);
 157
 158         /* Try to find a module that contains this module */
 159         if (!entry) {
 160                 DEBUG(2,("No builtin backend found, trying to load plugin\n"));
 161                 if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
 162                         DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
 163                         SAFE_FREE(module_name);
 164                         return NT_STATUS_UNSUCCESSFUL;
 165                 }
 166         }
 167
 168         /* No such backend found */
 169         if(!entry) {
 170                 DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
 171                 SAFE_FREE(module_name);
 172                 return NT_STATUS_INVALID_PARAMETER;
 173         }
 174
 175         DEBUG(5,("Found pdb backend %s\n", module_name));
 176
 177         if ( !NT_STATUS_IS_OK( nt_status = entry->init(methods, module_location) ) ) {
 178                 DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n",
 179                         selected, nt_errstr(nt_status)));
 180                 SAFE_FREE(module_name);
 181                 return nt_status;
 182         }
 183
 184         SAFE_FREE(module_name);
 185
 186         DEBUG(5,("pdb backend %s has a valid init\n", selected));
 187
 188         return nt_status;
 189 }
 190
 191 /******************************************************************
 192  Return an already initialized pdb_methods structure
 193 *******************************************************************/
 194
 195 static struct pdb_methods *pdb_get_methods_reload( bool reload )
 196 {
 197         static struct pdb_methods *pdb = NULL;
 198
 199         if ( pdb && reload ) {
 200                 if (pdb->free_private_data != NULL) {
 201                         pdb->free_private_data( &(pdb->private_data) );
 202                 }
 203                 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 204                         return NULL;
 205                 }
 206         }
 207
 208         if ( !pdb ) {
 209                 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 210                         return NULL;
 211                 }
 212         }
 213
 214         return pdb;
 215 }
 216
 217 static struct pdb_methods *pdb_get_methods(void)
 218 {
 219         struct pdb_methods *pdb;
 220
 221         pdb = pdb_get_methods_reload(false);
 222         if (!pdb) {
 223                 char *msg = NULL;
 224                 if (asprintf(&msg, "pdb_get_methods: "
 225                              "failed to get pdb methods for backend %s\n",
 226                              lp_passdb_backend()) > 0) {
 227                         smb_panic(msg);
 228                 } else {
 229                         smb_panic("pdb_get_methods");
 230                 }
 231         }
 232
 233         return pdb;
 234 }
 235
 236 struct pdb_domain_info *pdb_get_domain_info(TALLOC_CTX *mem_ctx)
 237 {
 238         struct pdb_methods *pdb = pdb_get_methods();
 239         return pdb->get_domain_info(pdb, mem_ctx);
 240 }
 241
 242 /**
 243  * @brief Check if the user account has been locked out and try to unlock it.
 244  *
 245  * If the user has been automatically locked out and a lockout duration is set,
 246  * then check if we can unlock the account and reset the bad password values.
 247  *
 248  * @param[in]  sampass  The sam user to check.
 249  *
 250  * @return              True if the function was successfull, false on an error.
 251  */
 252 static bool pdb_try_account_unlock(struct samu *sampass)
 253 {
 254         uint32_t acb_info = pdb_get_acct_ctrl(sampass);
 255
 256         if ((acb_info & ACB_NORMAL) && (acb_info & ACB_AUTOLOCK)) {
 257                 uint32_t lockout_duration;
 258                 time_t bad_password_time;
 259                 time_t now = time(NULL);
 260                 bool ok;
 261
 262                 ok = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION,
 263                                             &lockout_duration);
 264                 if (!ok) {
 265                         DEBUG(0, ("pdb_try_account_unlock: "
 266                                   "pdb_get_account_policy failed.\n"));
 267                         return false;
 268                 }
 269
 270                 if (lockout_duration == (uint32_t) -1 ||
 271                     lockout_duration == 0) {
 272                         DEBUG(9, ("pdb_try_account_unlock: No reset duration, "
 273                                   "can't reset autolock\n"));
 274                         return false;
 275                 }
 276                 lockout_duration *= 60;
 277
 278                 bad_password_time = pdb_get_bad_password_time(sampass);
 279                 if (bad_password_time == (time_t) 0) {
 280                         DEBUG(2, ("pdb_try_account_unlock: Account %s "
 281                                   "administratively locked out "
 282                                   "with no bad password "
 283                                   "time. Leaving locked out.\n",
 284                                   pdb_get_username(sampass)));
 285                         return true;
 286                 }
 287
 288                 if ((bad_password_time +
 289                      convert_uint32_t_to_time_t(lockout_duration)) < now) {
 290                         NTSTATUS status;
 291
 292                         pdb_set_acct_ctrl(sampass, acb_info & ~ACB_AUTOLOCK,
 293                                           PDB_CHANGED);
 294                         pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
 295                         pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
 296
 297                         become_root();
 298                         status = pdb_update_sam_account(sampass);
 299                         unbecome_root();
 300                         if (!NT_STATUS_IS_OK(status)) {
 301                                 DEBUG(0, ("_samr_OpenUser: Couldn't "
 302                                           "update account %s - %s\n",
 303                                           pdb_get_username(sampass),
 304                                           nt_errstr(status)));
 305                                 return false;
 306                         }
 307                 }
 308         }
 309
 310         return true;
 311 }
 312
 313 /**
 314  * @brief Get a sam user structure by the given username.
 315  *
 316  * This functions also checks if the account has been automatically locked out
 317  * and unlocks it if a lockout duration time has been defined and the time has
 318  * elapsed.
 319  *
 320  * @param[in]  sam_acct  The sam user structure to fill.
 321  *
 322  * @param[in]  username  The username to look for.
 323  *
 324  * @return               True on success, false on error.
 325  */
 326 bool pdb_getsampwnam(struct samu *sam_acct, const char *username)
 327 {
 328         struct pdb_methods *pdb = pdb_get_methods();
 329         struct samu *for_cache;
 330         const struct dom_sid *user_sid;
 331         NTSTATUS status;
 332         bool ok;
 333
 334         status = pdb->getsampwnam(pdb, sam_acct, username);
 335         if (!NT_STATUS_IS_OK(status)) {
 336                 return false;
 337         }
 338
 339         ok = pdb_try_account_unlock(sam_acct);
 340         if (!ok) {
 341                 DEBUG(1, ("pdb_getsampwnam: Failed to unlock account %s\n",
 342                           username));
 343         }
 344
 345         for_cache = samu_new(NULL);
 346         if (for_cache == NULL) {
 347                 return False;
 348         }
 349
 350         if (!pdb_copy_sam_account(for_cache, sam_acct)) {
 351                 TALLOC_FREE(for_cache);
 352                 return False;
 353         }
 354
 355         user_sid = pdb_get_user_sid(for_cache);
 356
 357         memcache_add_talloc(NULL, PDB_GETPWSID_CACHE,
 358                             data_blob_const(user_sid, sizeof(*user_sid)),
 359                             &for_cache);
 360
 361         return True;
 362 }
 363
 364 /**********************************************************************
 365 **********************************************************************/
 366
 367 static bool guest_user_info( struct samu *user )
 368 {
 369         struct passwd *pwd;
 370         NTSTATUS result;
 371         const char *guestname = lp_guest_account();
 372
 373         pwd = Get_Pwnam_alloc(talloc_tos(), guestname);
 374         if (pwd == NULL) {
 375                 DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
 376                         guestname));
 377                 return False;
 378         }
 379
 380         result = samu_set_unix(user, pwd );
 381
 382         TALLOC_FREE( pwd );
 383
 384         return NT_STATUS_IS_OK( result );
 385 }
 386
 387 /**
 388  * @brief Get a sam user structure by the given username.
 389  *
 390  * This functions also checks if the account has been automatically locked out
 391  * and unlocks it if a lockout duration time has been defined and the time has
 392  * elapsed.
 393  *
 394  *
 395  * @param[in]  sam_acct  The sam user structure to fill.
 396  *
 397  * @param[in]  sid       The user SDI to look up.
 398  *
 399  * @return               True on success, false on error.
 400  */
 401 bool pdb_getsampwsid(struct samu *sam_acct, const struct dom_sid *sid)
 402 {
 403         struct pdb_methods *pdb = pdb_get_methods();
 404         uint32_t rid;
 405         void *cache_data;
 406         bool ok = false;
 407
 408         /* hard code the Guest RID of 501 */
 409
 410         if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
 411                 return False;
 412
 413         if ( rid == DOMAIN_RID_GUEST ) {
 414                 DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
 415                 return guest_user_info( sam_acct );
 416         }
 417
 418         /* check the cache first */
 419
 420         cache_data = memcache_lookup_talloc(
 421                 NULL, PDB_GETPWSID_CACHE, data_blob_const(sid, sizeof(*sid)));
 422
 423         if (cache_data != NULL) {
 424                 struct samu *cache_copy = talloc_get_type_abort(
 425                         cache_data, struct samu);
 426
 427                 ok = pdb_copy_sam_account(sam_acct, cache_copy);
 428         } else {
 429                 ok = NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
 430         }
 431
 432         if (!ok) {
 433                 return false;
 434         }
 435
 436         ok = pdb_try_account_unlock(sam_acct);
 437         if (!ok) {
 438                 DEBUG(1, ("pdb_getsampwsid: Failed to unlock account %s\n",
 439                           sam_acct->username));
 440         }
 441
 442         return true;
 443 }
 444
 445 static NTSTATUS pdb_default_create_user(struct pdb_methods *methods,
 446                                         TALLOC_CTX *tmp_ctx, const char *name,
 447                                         uint32_t acb_info, uint32_t *rid)
 448 {
 449         struct samu *sam_pass;
 450         NTSTATUS status;
 451         struct passwd *pwd;
 452
 453         if ((sam_pass = samu_new(tmp_ctx)) == NULL) {
 454                 return NT_STATUS_NO_MEMORY;
 455         }
 456
 457         if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) {
 458                 char *add_script = NULL;
 459                 int add_ret;
 460                 fstring name2;
 461
 462                 if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') {
 463                         add_script = lp_add_user_script(tmp_ctx);
 464                 } else {
 465                         add_script = lp_add_machine_script(tmp_ctx);
 466                 }
 467
 468                 if (!add_script || add_script[0] == '\0') {
 469                         DEBUG(3, ("Could not find user %s and no add script "
 470                                   "defined\n", name));
 471                         return NT_STATUS_NO_SUCH_USER;
 472                 }
 473
 474                 /* lowercase the username before creating the Unix account for
 475                    compatibility with previous Samba releases */
 476                 fstrcpy( name2, name );
 477                 if (!strlower_m( name2 )) {
 478                         return NT_STATUS_INVALID_PARAMETER;
 479                 }
 480                 add_script = talloc_all_string_sub(tmp_ctx,
 481                                         add_script,
 482                                         "%u",
 483                                         name2);
 484                 if (!add_script) {
 485                         return NT_STATUS_NO_MEMORY;
 486                 }
 487                 add_ret = smbrun(add_script,NULL);
 488                 DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n",
 489                                         add_script, add_ret));
 490                 if (add_ret == 0) {
 491                         smb_nscd_flush_user_cache();
 492                 }
 493
 494                 flush_pwnam_cache();
 495
 496                 pwd = Get_Pwnam_alloc(tmp_ctx, name);
 497
 498                 if(pwd == NULL) {
 499                         DEBUG(3, ("Could not find user %s, add script did not work\n", name));
 500                         return NT_STATUS_NO_SUCH_USER;
 501                 }
 502         }
 503
 504         /* we have a valid SID coming out of this call */
 505
 506         status = samu_alloc_rid_unix(methods, sam_pass, pwd);
 507
 508         TALLOC_FREE( pwd );
 509
 510         if (!NT_STATUS_IS_OK(status)) {
 511                 DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status)));
 512                 return status;
 513         }
 514
 515         if (!sid_peek_check_rid(get_global_sam_sid(),
 516                                 pdb_get_user_sid(sam_pass), rid)) {
 517                 DEBUG(0, ("Could not get RID of fresh user\n"));
 518                 return NT_STATUS_INTERNAL_ERROR;
 519         }
 520
 521         /* Use the username case specified in the original request */
 522
 523         pdb_set_username( sam_pass, name, PDB_SET );
 524
 525         /* Disable the account on creation, it does not have a reasonable password yet. */
 526
 527         acb_info |= ACB_DISABLED;
 528
 529         pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
 530
 531         status = methods->add_sam_account(methods, sam_pass);
 532
 533         TALLOC_FREE(sam_pass);
 534
 535         return status;
 536 }
 537
 538 NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32_t flags,
 539                          uint32_t *rid)
 540 {
 541         struct pdb_methods *pdb = pdb_get_methods();
 542         return pdb->create_user(pdb, mem_ctx, name, flags, rid);
 543 }
 544
 545 /****************************************************************************
 546  Delete a UNIX user on demand.
 547 ****************************************************************************/
 548
 549 static int smb_delete_user(const char *unix_user)
 550 {
 551         char *del_script = NULL;
 552         int ret;
 553
 554         /* safety check */
 555
 556         if ( strequal( unix_user, "root" ) ) {
 557                 DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n"));
 558                 return -1;
 559         }
 560
 561         del_script = lp_delete_user_script(talloc_tos());
 562         if (!del_script || !*del_script) {
 563                 return -1;
 564         }
 565         del_script = talloc_all_string_sub(talloc_tos(),
 566                                 del_script,
 567                                 "%u",
 568                                 unix_user);
 569         if (!del_script) {
 570                 return -1;
 571         }
 572         ret = smbrun(del_script,NULL);
 573         flush_pwnam_cache();
 574         if (ret == 0) {
 575                 smb_nscd_flush_user_cache();
 576         }
 577         DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
 578
 579         return ret;
 580 }
 581
 582 static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods,
 583                                         TALLOC_CTX *mem_ctx,
 584                                         struct samu *sam_acct)
 585 {
 586         NTSTATUS status;
 587         fstring username;
 588
 589         status = methods->delete_sam_account(methods, sam_acct);
 590         if (!NT_STATUS_IS_OK(status)) {
 591                 return status;
 592         }
 593
 594         /*
 595          * Now delete the unix side ....
 596          * note: we don't check if the delete really happened as the script is
 597          * not necessary present and maybe the sysadmin doesn't want to delete
 598          * the unix side
 599          */
 600
 601         /* always lower case the username before handing it off to
 602            external scripts */
 603
 604         fstrcpy( username, pdb_get_username(sam_acct) );
 605         if (!strlower_m( username )) {
 606                 return status;
 607         }
 608
 609         smb_delete_user( username );
 610
 611         return status;
 612 }
 613
 614 NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct)
 615 {
 616         struct pdb_methods *pdb = pdb_get_methods();
 617         uid_t uid = -1;
 618         NTSTATUS status;
 619         const struct dom_sid *user_sid;
 620         char *msg_data;
 621
 622         user_sid = pdb_get_user_sid(sam_acct);
 623
 624         /* sanity check to make sure we don't delete root */
 625
 626         if ( !sid_to_uid(user_sid, &uid ) ) {
 627                 return NT_STATUS_NO_SUCH_USER;
 628         }
 629
 630         if ( uid == 0 ) {
 631                 return NT_STATUS_ACCESS_DENIED;
 632         }
 633
 634         memcache_delete(NULL,
 635                         PDB_GETPWSID_CACHE,
 636                         data_blob_const(user_sid, sizeof(*user_sid)));
 637
 638         status = pdb->delete_user(pdb, mem_ctx, sam_acct);
 639         if (!NT_STATUS_IS_OK(status)) {
 640                 return status;
 641         }
 642
 643         msg_data = talloc_asprintf(mem_ctx, "USER %s",
 644                                    pdb_get_username(sam_acct));
 645         if (!msg_data) {
 646                 /* not fatal, and too late to rollback,
 647                  * just return */
 648                 return status;
 649         }
 650         message_send_all(server_messaging_context(),
 651                          ID_CACHE_DELETE,
 652                          msg_data,
 653                          strlen(msg_data) + 1,
 654                          NULL);
 655
 656         TALLOC_FREE(msg_data);
 657         return status;
 658 }
 659
 660 NTSTATUS pdb_add_sam_account(struct samu *sam_acct)
 661 {
 662         struct pdb_methods *pdb = pdb_get_methods();
 663         return pdb->add_sam_account(pdb, sam_acct);
 664 }
 665
 666 NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
 667 {
 668         struct pdb_methods *pdb = pdb_get_methods();
 669
 670         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 671
 672         return pdb->update_sam_account(pdb, sam_acct);
 673 }
 674
 675 NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
 676 {
 677         struct pdb_methods *pdb = pdb_get_methods();
 678         const struct dom_sid *user_sid = pdb_get_user_sid(sam_acct);
 679
 680         memcache_delete(NULL,
 681                         PDB_GETPWSID_CACHE,
 682                         data_blob_const(user_sid, sizeof(*user_sid)));
 683
 684         return pdb->delete_sam_account(pdb, sam_acct);
 685 }
 686
 687 NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
 688 {
 689         struct pdb_methods *pdb = pdb_get_methods();
 690         uid_t uid;
 691         NTSTATUS status;
 692
 693         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 694
 695         /* sanity check to make sure we don't rename root */
 696
 697         if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) {
 698                 return NT_STATUS_NO_SUCH_USER;
 699         }
 700
 701         if ( uid == 0 ) {
 702                 return NT_STATUS_ACCESS_DENIED;
 703         }
 704
 705         status = pdb->rename_sam_account(pdb, oldname, newname);
 706
 707         /* always flush the cache here just to be safe */
 708         flush_pwnam_cache();
 709
 710         return status;
 711 }
 712
 713 NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, bool success)
 714 {
 715         struct pdb_methods *pdb = pdb_get_methods();
 716         return pdb->update_login_attempts(pdb, sam_acct, success);
 717 }
 718
 719 bool pdb_getgrsid(GROUP_MAP *map, struct dom_sid sid)
 720 {
 721         struct pdb_methods *pdb = pdb_get_methods();
 722         return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
 723 }
 724
 725 bool pdb_getgrgid(GROUP_MAP *map, gid_t gid)
 726 {
 727         struct pdb_methods *pdb = pdb_get_methods();
 728         return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
 729 }
 730
 731 bool pdb_getgrnam(GROUP_MAP *map, const char *name)
 732 {
 733         struct pdb_methods *pdb = pdb_get_methods();
 734         return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
 735 }
 736
 737 static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods,
 738                                              TALLOC_CTX *mem_ctx,
 739                                              const char *name,
 740                                              uint32_t *rid)
 741 {
 742         struct dom_sid group_sid;
 743         struct group *grp;
 744         fstring tmp;
 745
 746         grp = getgrnam(name);
 747
 748         if (grp == NULL) {
 749                 gid_t gid;
 750
 751                 if (smb_create_group(name, &gid) != 0) {
 752                         return NT_STATUS_ACCESS_DENIED;
 753                 }
 754
 755                 grp = getgrgid(gid);
 756         }
 757
 758         if (grp == NULL) {
 759                 return NT_STATUS_ACCESS_DENIED;
 760         }
 761
 762         if (pdb_capabilities() & PDB_CAP_STORE_RIDS) {
 763                 if (!pdb_new_rid(rid)) {
 764                         return NT_STATUS_ACCESS_DENIED;
 765                 }
 766         } else {
 767                 *rid = algorithmic_pdb_gid_to_group_rid( grp->gr_gid );
 768         }
 769
 770         sid_compose(&group_sid, get_global_sam_sid(), *rid);
 771
 772         return add_initial_entry(grp->gr_gid, sid_to_fstring(tmp, &group_sid),
 773                                  SID_NAME_DOM_GRP, name, NULL);
 774 }
 775
 776 NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name,
 777                               uint32_t *rid)
 778 {
 779         struct pdb_methods *pdb = pdb_get_methods();
 780         return pdb->create_dom_group(pdb, mem_ctx, name, rid);
 781 }
 782
 783 static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods,
 784                                              TALLOC_CTX *mem_ctx,
 785                                              uint32_t rid)
 786 {
 787         struct dom_sid group_sid;
 788         GROUP_MAP *map;
 789         NTSTATUS status;
 790         struct group *grp;
 791         const char *grp_name;
 792
 793         map = talloc_zero(mem_ctx, GROUP_MAP);
 794         if (!map) {
 795                 return NT_STATUS_NO_MEMORY;
 796         }
 797
 798         /* coverity */
 799         map->gid = (gid_t) -1;
 800
 801         sid_compose(&group_sid, get_global_sam_sid(), rid);
 802
 803         if (!get_domain_group_from_sid(group_sid, map)) {
 804                 DEBUG(10, ("Could not find group for rid %d\n", rid));
 805                 return NT_STATUS_NO_SUCH_GROUP;
 806         }
 807
 808         /* We need the group name for the smb_delete_group later on */
 809
 810         if (map->gid == (gid_t)-1) {
 811                 return NT_STATUS_NO_SUCH_GROUP;
 812         }
 813
 814         grp = getgrgid(map->gid);
 815         if (grp == NULL) {
 816                 return NT_STATUS_NO_SUCH_GROUP;
 817         }
 818
 819         TALLOC_FREE(map);
 820
 821         /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
 822
 823         grp_name = talloc_strdup(mem_ctx, grp->gr_name);
 824         if (grp_name == NULL) {
 825                 return NT_STATUS_NO_MEMORY;
 826         }
 827
 828         status = pdb_delete_group_mapping_entry(group_sid);
 829
 830         if (!NT_STATUS_IS_OK(status)) {
 831                 return status;
 832         }
 833
 834         /* Don't check the result of smb_delete_group */
 835
 836         smb_delete_group(grp_name);
 837
 838         return NT_STATUS_OK;
 839 }
 840
 841 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32_t rid)
 842 {
 843         struct pdb_methods *pdb = pdb_get_methods();
 844         return pdb->delete_dom_group(pdb, mem_ctx, rid);
 845 }
 846
 847 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
 848 {
 849         struct pdb_methods *pdb = pdb_get_methods();
 850         return pdb->add_group_mapping_entry(pdb, map);
 851 }
 852
 853 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
 854 {
 855         struct pdb_methods *pdb = pdb_get_methods();
 856         return pdb->update_group_mapping_entry(pdb, map);
 857 }
 858
 859 NTSTATUS pdb_delete_group_mapping_entry(struct dom_sid sid)
 860 {
 861         struct pdb_methods *pdb = pdb_get_methods();
 862         return pdb->delete_group_mapping_entry(pdb, sid);
 863 }
 864
 865 bool pdb_enum_group_mapping(const struct dom_sid *sid,
 866                             enum lsa_SidType sid_name_use,
 867                             GROUP_MAP ***pp_rmap,
 868                             size_t *p_num_entries,
 869                             bool unix_only)
 870 {
 871         struct pdb_methods *pdb = pdb_get_methods();
 872         return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
 873                 pp_rmap, p_num_entries, unix_only));
 874 }
 875
 876 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
 877                                 const struct dom_sid *sid,
 878                                 uint32_t **pp_member_rids,
 879                                 size_t *p_num_members)
 880 {
 881         struct pdb_methods *pdb = pdb_get_methods();
 882         NTSTATUS result;
 883
 884         result = pdb->enum_group_members(pdb, mem_ctx,
 885                         sid, pp_member_rids, p_num_members);
 886
 887         /* special check for rid 513 */
 888
 889         if ( !NT_STATUS_IS_OK( result ) ) {
 890                 uint32_t rid;
 891
 892                 sid_peek_rid( sid, &rid );
 893
 894                 if ( rid == DOMAIN_RID_USERS ) {
 895                         *p_num_members = 0;
 896                         *pp_member_rids = NULL;
 897
 898                         return NT_STATUS_OK;
 899                 }
 900         }
 901
 902         return result;
 903 }
 904
 905 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
 906                                     struct dom_sid **pp_sids, gid_t **pp_gids,
 907                                     uint32_t *p_num_groups)
 908 {
 909         struct pdb_methods *pdb = pdb_get_methods();
 910         return pdb->enum_group_memberships(
 911                 pdb, mem_ctx, user,
 912                 pp_sids, pp_gids, p_num_groups);
 913 }
 914
 915 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
 916                                                    TALLOC_CTX *mem_ctx,
 917                                                    struct samu *sampass)
 918 {
 919         struct group *grp;
 920         gid_t gid;
 921
 922         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
 923             (grp = getgrgid(gid)) == NULL) {
 924                 return NT_STATUS_INVALID_PRIMARY_GROUP;
 925         }
 926
 927         if (smb_set_primary_group(grp->gr_name,
 928                                   pdb_get_username(sampass)) != 0) {
 929                 return NT_STATUS_ACCESS_DENIED;
 930         }
 931
 932         return NT_STATUS_OK;
 933 }
 934
 935 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
 936 {
 937         struct pdb_methods *pdb = pdb_get_methods();
 938         return pdb->set_unix_primary_group(pdb, mem_ctx, user);
 939 }
 940
 941 /*
 942  * Helper function to see whether a user is in a group. We can't use
 943  * user_in_group_sid here because this creates dependencies only smbd can
 944  * fulfil.
 945  */
 946
 947 static bool pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
 948                               const struct dom_sid *group_sid)
 949 {
 950         struct dom_sid *sids;
 951         gid_t *gids;
 952         uint32_t i, num_groups;
 953
 954         if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
 955                                                         &sids, &gids,
 956                                                         &num_groups))) {
 957                 return False;
 958         }
 959
 960         for (i=0; i<num_groups; i++) {
 961                 if (dom_sid_equal(group_sid, &sids[i])) {
 962                         return True;
 963                 }
 964         }
 965         return False;
 966 }
 967
 968 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
 969                                          TALLOC_CTX *mem_ctx,
 970                                          uint32_t group_rid,
 971                                          uint32_t member_rid)
 972 {
 973         struct dom_sid group_sid, member_sid;
 974         struct samu *account = NULL;
 975         GROUP_MAP *map;
 976         struct group *grp;
 977         struct passwd *pwd;
 978         const char *group_name;
 979         uid_t uid;
 980
 981         map = talloc_zero(mem_ctx, GROUP_MAP);
 982         if (!map) {
 983                 return NT_STATUS_NO_MEMORY;
 984         }
 985
 986         /* coverity */
 987         map->gid = (gid_t) -1;
 988
 989         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
 990         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
 991
 992         if (!get_domain_group_from_sid(group_sid, map) ||
 993             (map->gid == (gid_t)-1) ||
 994             ((grp = getgrgid(map->gid)) == NULL)) {
 995                 return NT_STATUS_NO_SUCH_GROUP;
 996         }
 997
 998         TALLOC_FREE(map);
 999
1000         group_name = talloc_strdup(mem_ctx, grp->gr_name);
1001         if (group_name == NULL) {
1002                 return NT_STATUS_NO_MEMORY;
1003         }
1004
1005         if ( !(account = samu_new( NULL )) ) {
1006                 return NT_STATUS_NO_MEMORY;
1007         }
1008
1009         if (!pdb_getsampwsid(account, &member_sid) ||
1010             !sid_to_uid(&member_sid, &uid) ||
1011             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1012                 return NT_STATUS_NO_SUCH_USER;
1013         }
1014
1015         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1016                 return NT_STATUS_MEMBER_IN_GROUP;
1017         }
1018
1019         /*
1020          * ok, the group exist, the user exist, the user is not in the group,
1021          * we can (finally) add it to the group !
1022          */
1023
1024         smb_add_user_group(group_name, pwd->pw_name);
1025
1026         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1027                 return NT_STATUS_ACCESS_DENIED;
1028         }
1029
1030         return NT_STATUS_OK;
1031 }
1032
1033 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1034                           uint32_t member_rid)
1035 {
1036         struct pdb_methods *pdb = pdb_get_methods();
1037         return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
1038 }
1039
1040 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
1041                                          TALLOC_CTX *mem_ctx,
1042                                          uint32_t group_rid,
1043                                          uint32_t member_rid)
1044 {
1045         struct dom_sid group_sid, member_sid;
1046         struct samu *account = NULL;
1047         GROUP_MAP *map;
1048         struct group *grp;
1049         struct passwd *pwd;
1050         const char *group_name;
1051         uid_t uid;
1052
1053         map = talloc_zero(mem_ctx, GROUP_MAP);
1054         if (!map) {
1055                 return NT_STATUS_NO_MEMORY;
1056         }
1057
1058         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
1059         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
1060
1061         if (!get_domain_group_from_sid(group_sid, map) ||
1062             (map->gid == (gid_t)-1) ||
1063             ((grp = getgrgid(map->gid)) == NULL)) {
1064                 return NT_STATUS_NO_SUCH_GROUP;
1065         }
1066
1067         TALLOC_FREE(map);
1068
1069         group_name = talloc_strdup(mem_ctx, grp->gr_name);
1070         if (group_name == NULL) {
1071                 return NT_STATUS_NO_MEMORY;
1072         }
1073
1074         if ( !(account = samu_new( NULL )) ) {
1075                 return NT_STATUS_NO_MEMORY;
1076         }
1077
1078         if (!pdb_getsampwsid(account, &member_sid) ||
1079             !sid_to_uid(&member_sid, &uid) ||
1080             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1081                 return NT_STATUS_NO_SUCH_USER;
1082         }
1083
1084         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1085                 return NT_STATUS_MEMBER_NOT_IN_GROUP;
1086         }
1087
1088         /*
1089          * ok, the group exist, the user exist, the user is in the group,
1090          * we can (finally) delete it from the group!
1091          */
1092
1093         smb_delete_user_group(group_name, pwd->pw_name);
1094
1095         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1096                 return NT_STATUS_ACCESS_DENIED;
1097         }
1098
1099         return NT_STATUS_OK;
1100 }
1101
1102 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1103                           uint32_t member_rid)
1104 {
1105         struct pdb_methods *pdb = pdb_get_methods();
1106         return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
1107 }
1108
1109 NTSTATUS pdb_create_alias(const char *name, uint32_t *rid)
1110 {
1111         struct pdb_methods *pdb = pdb_get_methods();
1112         return pdb->create_alias(pdb, name, rid);
1113 }
1114
1115 NTSTATUS pdb_delete_alias(const struct dom_sid *sid)
1116 {
1117         struct pdb_methods *pdb = pdb_get_methods();
1118         return pdb->delete_alias(pdb, sid);
1119 }
1120
1121 NTSTATUS pdb_get_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1122 {
1123         struct pdb_methods *pdb = pdb_get_methods();
1124         return pdb->get_aliasinfo(pdb, sid, info);
1125 }
1126
1127 NTSTATUS pdb_set_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1128 {
1129         struct pdb_methods *pdb = pdb_get_methods();
1130         return pdb->set_aliasinfo(pdb, sid, info);
1131 }
1132
1133 NTSTATUS pdb_add_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1134 {
1135         struct pdb_methods *pdb = pdb_get_methods();
1136         return pdb->add_aliasmem(pdb, alias, member);
1137 }
1138
1139 NTSTATUS pdb_del_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1140 {
1141         struct pdb_methods *pdb = pdb_get_methods();
1142         return pdb->del_aliasmem(pdb, alias, member);
1143 }
1144
1145 NTSTATUS pdb_enum_aliasmem(const struct dom_sid *alias, TALLOC_CTX *mem_ctx,
1146                            struct dom_sid **pp_members, size_t *p_num_members)
1147 {
1148         struct pdb_methods *pdb = pdb_get_methods();
1149         return pdb->enum_aliasmem(pdb, alias, mem_ctx, pp_members,
1150                                   p_num_members);
1151 }
1152
1153 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
1154                                     const struct dom_sid *domain_sid,
1155                                     const struct dom_sid *members, size_t num_members,
1156                                     uint32_t **pp_alias_rids,
1157                                     size_t *p_num_alias_rids)
1158 {
1159         struct pdb_methods *pdb = pdb_get_methods();
1160         return pdb->enum_alias_memberships(pdb, mem_ctx,
1161                                                        domain_sid,
1162                                                        members, num_members,
1163                                                        pp_alias_rids,
1164                                                        p_num_alias_rids);
1165 }
1166
1167 NTSTATUS pdb_lookup_rids(const struct dom_sid *domain_sid,
1168                          int num_rids,
1169                          uint32_t *rids,
1170                          const char **names,
1171                          enum lsa_SidType *attrs)
1172 {
1173         struct pdb_methods *pdb = pdb_get_methods();
1174         return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
1175 }
1176
1177 bool pdb_get_account_policy(enum pdb_policy_type type, uint32_t *value)
1178 {
1179         struct pdb_methods *pdb = pdb_get_methods();
1180         NTSTATUS status;
1181
1182         become_root();
1183         status = pdb->get_account_policy(pdb, type, value);
1184         unbecome_root();
1185
1186         return NT_STATUS_IS_OK(status);
1187 }
1188
1189 bool pdb_set_account_policy(enum pdb_policy_type type, uint32_t value)
1190 {
1191         struct pdb_methods *pdb = pdb_get_methods();
1192         NTSTATUS status;
1193
1194         become_root();
1195         status = pdb->set_account_policy(pdb, type, value);
1196         unbecome_root();
1197
1198         return NT_STATUS_IS_OK(status);
1199 }
1200
1201 bool pdb_get_seq_num(time_t *seq_num)
1202 {
1203         struct pdb_methods *pdb = pdb_get_methods();
1204         return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
1205 }
1206
1207 /*
1208  * Instead of passing down a gid or uid, this function sends down a pointer
1209  * to a unixid.
1210  *
1211  * This acts as an in-out variable so that the idmap functions can correctly
1212  * receive ID_TYPE_BOTH, filling in cache details correctly rather than forcing
1213  * the cache to store ID_TYPE_UID or ID_TYPE_GID.
1214  */
1215 bool pdb_id_to_sid(struct unixid *id, struct dom_sid *sid)
1216 {
1217         struct pdb_methods *pdb = pdb_get_methods();
1218         bool ret;
1219
1220         ret = pdb->id_to_sid(pdb, id, sid);
1221
1222         if (ret == true) {
1223                 idmap_cache_set_sid2unixid(sid, id);
1224         }
1225
1226         return ret;
1227 }
1228
1229 bool pdb_sid_to_id(const struct dom_sid *sid, struct unixid *id)
1230 {
1231         struct pdb_methods *pdb = pdb_get_methods();
1232         bool ret;
1233
1234         /* only ask the backend if it is responsible */
1235         if (!sid_check_object_is_for_passdb(sid)) {
1236                 return false;
1237         }
1238
1239         ret = pdb->sid_to_id(pdb, sid, id);
1240
1241         if (ret == true) {
1242                 idmap_cache_set_sid2unixid(sid, id);
1243         }
1244
1245         return ret;
1246 }
1247
1248 uint32_t pdb_capabilities(void)
1249 {
1250         struct pdb_methods *pdb = pdb_get_methods();
1251         return pdb->capabilities(pdb);
1252 }
1253
1254 /********************************************************************
1255  Allocate a new RID from the passdb backend.  Verify that it is free
1256  by calling lookup_global_sam_rid() to verify that the RID is not
1257  in use.  This handles servers that have existing users or groups
1258  with add RIDs (assigned from previous algorithmic mappings)
1259 ********************************************************************/
1260
1261 bool pdb_new_rid(uint32_t *rid)
1262 {
1263         struct pdb_methods *pdb = pdb_get_methods();
1264         const char *name = NULL;
1265         enum lsa_SidType type;
1266         uint32_t allocated_rid = 0;
1267         int i;
1268         TALLOC_CTX *ctx;
1269
1270         if ((pdb_capabilities() & PDB_CAP_STORE_RIDS) == 0) {
1271                 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1272                           "are active\n"));
1273                 return False;
1274         }
1275
1276         if (algorithmic_rid_base() != BASE_RID) {
1277                 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1278                           "without algorithmic RIDs is chosen.\n"));
1279                 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1280                              "add', set the maximum used RID\n"));
1281                 DEBUGADD(0, ("and remove the parameter\n"));
1282                 return False;
1283         }
1284
1285         if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1286                 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1287                 return False;
1288         }
1289
1290         /* Attempt to get an unused RID (max tires is 250...yes that it is
1291            and arbitrary number I pulkled out of my head).   -- jerry */
1292
1293         for ( i=0; allocated_rid==0 && i<250; i++ ) {
1294                 /* get a new RID */
1295
1296                 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1297                         return False;
1298                 }
1299
1300                 /* validate that the RID is not in use */
1301
1302                 if (lookup_global_sam_rid(ctx, allocated_rid, &name, &type, NULL, NULL)) {
1303                         allocated_rid = 0;
1304                 }
1305         }
1306
1307         TALLOC_FREE( ctx );
1308
1309         if ( allocated_rid == 0 ) {
1310                 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1311                 return False;
1312         }
1313
1314         *rid = allocated_rid;
1315
1316         return True;
1317 }
1318
1319 /***************************************************************
1320   Initialize the static context (at smbd startup etc).
1321
1322   If uninitialised, context will auto-init on first use.
1323  ***************************************************************/
1324
1325 bool initialize_password_db(bool reload, struct tevent_context *tevent_ctx)
1326 {
1327         if (tevent_ctx) {
1328                 pdb_tevent_ctx = tevent_ctx;
1329         }
1330         return (pdb_get_methods_reload(reload) != NULL);
1331 }
1332
1333 /***************************************************************************
1334   Default implementations of some functions.
1335  ****************************************************************************/
1336
1337 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1338 {
1339         return NT_STATUS_NO_SUCH_USER;
1340 }
1341
1342 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
1343 {
1344         return NT_STATUS_NO_SUCH_USER;
1345 }
1346
1347 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1348 {
1349         return NT_STATUS_NOT_IMPLEMENTED;
1350 }
1351
1352 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1353 {
1354         return NT_STATUS_NOT_IMPLEMENTED;
1355 }
1356
1357 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1358 {
1359         return NT_STATUS_NOT_IMPLEMENTED;
1360 }
1361
1362 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1363 {
1364         return NT_STATUS_NOT_IMPLEMENTED;
1365 }
1366
1367 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, bool success)
1368 {
1369         /* Only the pdb_nds backend implements this, by
1370          * default just return ok. */
1371         return NT_STATUS_OK;
1372 }
1373
1374 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t *value)
1375 {
1376         return account_policy_get(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1377 }
1378
1379 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t value)
1380 {
1381         return account_policy_set(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1382 }
1383
1384 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1385 {
1386         *seq_num = time(NULL);
1387         return NT_STATUS_OK;
1388 }
1389
1390 static bool pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid,
1391                                    struct dom_sid *sid)
1392 {
1393         struct samu *sampw = NULL;
1394         struct passwd *unix_pw;
1395         bool ret;
1396
1397         unix_pw = getpwuid( uid );
1398
1399         if ( !unix_pw ) {
1400                 DEBUG(4,("pdb_default_uid_to_sid: host has no idea of uid "
1401                          "%lu\n", (unsigned long)uid));
1402                 return False;
1403         }
1404
1405         if ( !(sampw = samu_new( NULL )) ) {
1406                 DEBUG(0,("pdb_default_uid_to_sid: samu_new() failed!\n"));
1407                 return False;
1408         }
1409
1410         become_root();
1411         ret = NT_STATUS_IS_OK(
1412                 methods->getsampwnam(methods, sampw, unix_pw->pw_name ));
1413         unbecome_root();
1414
1415         if (!ret) {
1416                 DEBUG(5, ("pdb_default_uid_to_sid: Did not find user "
1417                           "%s (%u)\n", unix_pw->pw_name, (unsigned int)uid));
1418                 TALLOC_FREE(sampw);
1419                 return False;
1420         }
1421
1422         sid_copy(sid, pdb_get_user_sid(sampw));
1423
1424         TALLOC_FREE(sampw);
1425
1426         return True;
1427 }
1428
1429 static bool pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1430                                    struct dom_sid *sid)
1431 {
1432         GROUP_MAP *map;
1433
1434         map = talloc_zero(NULL, GROUP_MAP);
1435         if (!map) {
1436                 return false;
1437         }
1438
1439         if (!NT_STATUS_IS_OK(methods->getgrgid(methods, map, gid))) {
1440                 TALLOC_FREE(map);
1441                 return false;
1442         }
1443
1444         sid_copy(sid, &map->sid);
1445         TALLOC_FREE(map);
1446         return true;
1447 }
1448
1449 static bool pdb_default_id_to_sid(struct pdb_methods *methods, struct unixid *id,
1450                                    struct dom_sid *sid)
1451 {
1452         switch (id->type) {
1453         case ID_TYPE_UID:
1454                 return pdb_default_uid_to_sid(methods, id->id, sid);
1455
1456         case ID_TYPE_GID:
1457                 return pdb_default_gid_to_sid(methods, id->id, sid);
1458
1459         default:
1460                 return false;
1461         }
1462 }
1463 /**
1464  * The "Unix User" and "Unix Group" domains have a special
1465  * id mapping that is a rid-algorithm with range starting at 0.
1466  */
1467 bool pdb_sid_to_id_unix_users_and_groups(const struct dom_sid *sid,
1468                                          struct unixid *id)
1469 {
1470         uint32_t rid;
1471
1472         id->id = -1;
1473
1474         if (sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid)) {
1475                 id->id = rid;
1476                 id->type = ID_TYPE_UID;
1477                 return true;
1478         }
1479
1480         if (sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid)) {
1481                 id->id = rid;
1482                 id->type = ID_TYPE_GID;
1483                 return true;
1484         }
1485
1486         return false;
1487 }
1488
1489 static bool pdb_default_sid_to_id(struct pdb_methods *methods,
1490                                   const struct dom_sid *sid,
1491                                   struct unixid *id)
1492 {
1493         TALLOC_CTX *mem_ctx;
1494         bool ret = False;
1495         uint32_t rid;
1496         id->id = -1;
1497
1498         mem_ctx = talloc_new(NULL);
1499
1500         if (mem_ctx == NULL) {
1501                 DEBUG(0, ("talloc_new failed\n"));
1502                 return False;
1503         }
1504
1505         if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1506                 const char *name;
1507                 enum lsa_SidType type;
1508                 uid_t uid = (uid_t)-1;
1509                 gid_t gid = (gid_t)-1;
1510                 /* Here we might have users as well as groups and aliases */
1511                 ret = lookup_global_sam_rid(mem_ctx, rid, &name, &type, &uid, &gid);
1512                 if (ret) {
1513                         switch (type) {
1514                         case SID_NAME_DOM_GRP:
1515                         case SID_NAME_ALIAS:
1516                                 id->type = ID_TYPE_GID;
1517                                 id->id = gid;
1518                                 break;
1519                         case SID_NAME_USER:
1520                                 id->type = ID_TYPE_UID;
1521                                 id->id = uid;
1522                                 break;
1523                         default:
1524                                 DEBUG(5, ("SID %s belongs to our domain, and "
1525                                           "an object exists in the database, "
1526                                            "but it is neither a user nor a "
1527                                            "group (got type %d).\n",
1528                                           sid_string_dbg(sid), type));
1529                                 ret = false;
1530                         }
1531                 } else {
1532                         DEBUG(5, ("SID %s belongs to our domain, but there is "
1533                                   "no corresponding object in the database.\n",
1534                                   sid_string_dbg(sid)));
1535                 }
1536                 goto done;
1537         }
1538
1539         /*
1540          * "Unix User" and "Unix Group"
1541          */
1542         ret = pdb_sid_to_id_unix_users_and_groups(sid, id);
1543         if (ret == true) {
1544                 goto done;
1545         }
1546
1547         /* BUILTIN */
1548
1549         if (sid_check_is_in_builtin(sid) ||
1550             sid_check_is_in_wellknown_domain(sid)) {
1551                 /* Here we only have aliases */
1552                 GROUP_MAP *map;
1553
1554                 map = talloc_zero(mem_ctx, GROUP_MAP);
1555                 if (!map) {
1556                         ret = false;
1557                         goto done;
1558                 }
1559
1560                 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, map, *sid))) {
1561                         DEBUG(10, ("Could not find map for sid %s\n",
1562                                    sid_string_dbg(sid)));
1563                         goto done;
1564                 }
1565                 if ((map->sid_name_use != SID_NAME_ALIAS) &&
1566                     (map->sid_name_use != SID_NAME_WKN_GRP)) {
1567                         DEBUG(10, ("Map for sid %s is a %s, expected an "
1568                                    "alias\n", sid_string_dbg(sid),
1569                                    sid_type_lookup(map->sid_name_use)));
1570                         goto done;
1571                 }
1572
1573                 id->id = map->gid;
1574                 id->type = ID_TYPE_GID;
1575                 ret = True;
1576                 goto done;
1577         }
1578
1579         DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n",
1580                   sid_string_dbg(sid)));
1581
1582  done:
1583
1584         TALLOC_FREE(mem_ctx);
1585         return ret;
1586 }
1587
1588 static bool get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, uint32_t *p_num)
1589 {
1590         struct group *grp;
1591         char **gr;
1592         struct passwd *pwd;
1593         bool winbind_env;
1594         bool ret = False;
1595
1596         *pp_uids = NULL;
1597         *p_num = 0;
1598
1599         /* We only look at our own sam, so don't care about imported stuff */
1600         winbind_env = winbind_env_set();
1601         (void)winbind_off();
1602
1603         if ((grp = getgrgid(gid)) == NULL) {
1604                 /* allow winbindd lookups, but only if they weren't already disabled */
1605                 goto done;
1606         }
1607
1608         /* Primary group members */
1609         setpwent();
1610         while ((pwd = getpwent()) != NULL) {
1611                 if (pwd->pw_gid == gid) {
1612                         if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1613                                                 pp_uids, p_num)) {
1614                                 goto done;
1615                         }
1616                 }
1617         }
1618         endpwent();
1619
1620         /* Secondary group members */
1621         for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1622                 struct passwd *pw = getpwnam(*gr);
1623
1624                 if (pw == NULL)
1625                         continue;
1626                 if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) {
1627                         goto done;
1628                 }
1629         }
1630
1631         ret = True;
1632
1633   done:
1634
1635         /* allow winbindd lookups, but only if they weren't already disabled */
1636         if (!winbind_env) {
1637                 (void)winbind_on();
1638         }
1639
1640         return ret;
1641 }
1642
1643 static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1644                                                TALLOC_CTX *mem_ctx,
1645                                                const struct dom_sid *group,
1646                                                uint32_t **pp_member_rids,
1647                                                size_t *p_num_members)
1648 {
1649         gid_t gid;
1650         uid_t *uids;
1651         uint32_t i, num_uids;
1652
1653         *pp_member_rids = NULL;
1654         *p_num_members = 0;
1655
1656         if (!sid_to_gid(group, &gid))
1657                 return NT_STATUS_NO_SUCH_GROUP;
1658
1659         if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1660                 return NT_STATUS_NO_SUCH_GROUP;
1661
1662         if (num_uids == 0)
1663                 return NT_STATUS_OK;
1664
1665         *pp_member_rids = talloc_zero_array(mem_ctx, uint32_t, num_uids);
1666
1667         for (i=0; i<num_uids; i++) {
1668                 struct dom_sid sid;
1669
1670                 uid_to_sid(&sid, uids[i]);
1671
1672                 if (!sid_check_is_in_our_sam(&sid)) {
1673                         DEBUG(5, ("Inconsistent SAM -- group member uid not "
1674                                   "in our domain\n"));
1675                         continue;
1676                 }
1677
1678                 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1679                 *p_num_members += 1;
1680         }
1681
1682         return NT_STATUS_OK;
1683 }
1684
1685 static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1686                                                    TALLOC_CTX *mem_ctx,
1687                                                    struct samu *user,
1688                                                    struct dom_sid **pp_sids,
1689                                                    gid_t **pp_gids,
1690                                                    uint32_t *p_num_groups)
1691 {
1692         size_t i;
1693         gid_t gid;
1694         struct passwd *pw;
1695         const char *username = pdb_get_username(user);
1696
1697
1698         /* Ignore the primary group SID.  Honor the real Unix primary group.
1699            The primary group SID is only of real use to Windows clients */
1700
1701         if ( !(pw = Get_Pwnam_alloc(mem_ctx, username)) ) {
1702                 return NT_STATUS_NO_SUCH_USER;
1703         }
1704
1705         gid = pw->pw_gid;
1706
1707         TALLOC_FREE( pw );
1708
1709         if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1710                 return NT_STATUS_NO_SUCH_USER;
1711         }
1712
1713         if (*p_num_groups == 0) {
1714                 smb_panic("primary group missing");
1715         }
1716
1717         *pp_sids = talloc_array(mem_ctx, struct dom_sid, *p_num_groups);
1718
1719         if (*pp_sids == NULL) {
1720                 TALLOC_FREE(*pp_gids);
1721                 return NT_STATUS_NO_MEMORY;
1722         }
1723
1724         for (i=0; i<*p_num_groups; i++) {
1725                 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1726         }
1727
1728         return NT_STATUS_OK;
1729 }
1730
1731 /*******************************************************************
1732  Look up a rid in the SAM we're responsible for (i.e. passdb)
1733  ********************************************************************/
1734
1735 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid,
1736                                   const char **name,
1737                                   enum lsa_SidType *psid_name_use,
1738                                   uid_t *uid, gid_t *gid)
1739 {
1740         struct samu *sam_account = NULL;
1741         GROUP_MAP *map = NULL;
1742         bool ret;
1743         struct dom_sid sid;
1744
1745         *psid_name_use = SID_NAME_UNKNOWN;
1746
1747         DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1748                  (unsigned int)rid));
1749
1750         sid_compose(&sid, get_global_sam_sid(), rid);
1751
1752         /* see if the passdb can help us with the name of the user */
1753
1754         if ( !(sam_account = samu_new( NULL )) ) {
1755                 return False;
1756         }
1757
1758         map = talloc_zero(mem_ctx, GROUP_MAP);
1759         if (!map) {
1760                 return false;
1761         }
1762
1763         /* BEING ROOT BLOCK */
1764         become_root();
1765         ret = pdb_getsampwsid(sam_account, &sid);
1766         if (!ret) {
1767                 TALLOC_FREE(sam_account);
1768                 ret = pdb_getgrsid(map, sid);
1769         }
1770         unbecome_root();
1771         /* END BECOME_ROOT BLOCK */
1772
1773         if (sam_account || !ret) {
1774                 TALLOC_FREE(map);
1775         }
1776
1777         if (sam_account) {
1778                 struct passwd *pw;
1779
1780                 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1781                 if (!*name) {
1782                         TALLOC_FREE(sam_account);
1783                         return False;
1784                 }
1785
1786                 *psid_name_use = SID_NAME_USER;
1787
1788                 TALLOC_FREE(sam_account);
1789
1790                 if (uid == NULL) {
1791                         return True;
1792                 }
1793
1794                 pw = Get_Pwnam_alloc(talloc_tos(), *name);
1795                 if (pw == NULL) {
1796                         return False;
1797                 }
1798                 *uid = pw->pw_uid;
1799                 TALLOC_FREE(pw);
1800                 return True;
1801
1802         } else if (map && (map->gid != (gid_t)-1)) {
1803
1804                 /* do not resolve SIDs to a name unless there is a valid
1805                    gid associated with it */
1806
1807                 *name = talloc_steal(mem_ctx, map->nt_name);
1808                 *psid_name_use = map->sid_name_use;
1809
1810                 if (gid) {
1811                         *gid = map->gid;
1812                 }
1813
1814                 TALLOC_FREE(map);
1815                 return True;
1816         }
1817
1818         TALLOC_FREE(map);
1819
1820         /* Windows will always map RID 513 to something.  On a non-domain
1821            controller, this gets mapped to SERVER\None. */
1822
1823         if (uid || gid) {
1824                 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1825                 return False;
1826         }
1827
1828         if ( rid == DOMAIN_RID_USERS ) {
1829                 *name = talloc_strdup(mem_ctx, "None" );
1830                 *psid_name_use = SID_NAME_DOM_GRP;
1831
1832                 return True;
1833         }
1834
1835         return False;
1836 }
1837
1838 static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1839                                         const struct dom_sid *domain_sid,
1840                                         int num_rids,
1841                                         uint32_t *rids,
1842                                         const char **names,
1843                                         enum lsa_SidType *attrs)
1844 {
1845         int i;
1846         NTSTATUS result;
1847         bool have_mapped = False;
1848         bool have_unmapped = False;
1849
1850         if (sid_check_is_builtin(domain_sid)) {
1851
1852                 for (i=0; i<num_rids; i++) {
1853                         const char *name;
1854
1855                         if (lookup_builtin_rid(names, rids[i], &name)) {
1856                                 attrs[i] = SID_NAME_ALIAS;
1857                                 names[i] = name;
1858                                 DEBUG(5,("lookup_rids: %s:%d\n",
1859                                          names[i], attrs[i]));
1860                                 have_mapped = True;
1861                         } else {
1862                                 have_unmapped = True;
1863                                 attrs[i] = SID_NAME_UNKNOWN;
1864                         }
1865                 }
1866                 goto done;
1867         }
1868
1869         /* Should not happen, but better check once too many */
1870         if (!sid_check_is_our_sam(domain_sid)) {
1871                 return NT_STATUS_INVALID_HANDLE;
1872         }
1873
1874         for (i = 0; i < num_rids; i++) {
1875                 const char *name;
1876
1877                 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1878                                           NULL, NULL)) {
1879                         if (name == NULL) {
1880                                 return NT_STATUS_NO_MEMORY;
1881                         }
1882                         names[i] = name;
1883                         DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1884                         have_mapped = True;
1885                 } else {
1886                         have_unmapped = True;
1887                         attrs[i] = SID_NAME_UNKNOWN;
1888                 }
1889         }
1890
1891  done:
1892
1893         result = NT_STATUS_NONE_MAPPED;
1894
1895         if (have_mapped)
1896                 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1897
1898         return result;
1899 }
1900
1901 static int pdb_search_destructor(struct pdb_search *search)
1902 {
1903         if ((!search->search_ended) && (search->search_end != NULL)) {
1904                 search->search_end(search);
1905         }
1906         return 0;
1907 }
1908
1909 struct pdb_search *pdb_search_init(TALLOC_CTX *mem_ctx,
1910                                    enum pdb_search_type type)
1911 {
1912         struct pdb_search *result;
1913
1914         result = talloc(mem_ctx, struct pdb_search);
1915         if (result == NULL) {
1916                 DEBUG(0, ("talloc failed\n"));
1917                 return NULL;
1918         }
1919
1920         result->type = type;
1921         result->cache = NULL;
1922         result->num_entries = 0;
1923         result->cache_size = 0;
1924         result->search_ended = False;
1925         result->search_end = NULL;
1926
1927         /* Segfault appropriately if not initialized */
1928         result->next_entry = NULL;
1929         result->search_end = NULL;
1930
1931         talloc_set_destructor(result, pdb_search_destructor);
1932
1933         return result;
1934 }
1935
1936 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32_t rid,
1937                               uint16_t acct_flags,
1938                               const char *account_name,
1939                               const char *fullname,
1940                               const char *description,
1941                               struct samr_displayentry *entry)
1942 {
1943         entry->rid = rid;
1944         entry->acct_flags = acct_flags;
1945
1946         if (account_name != NULL)
1947                 entry->account_name = talloc_strdup(mem_ctx, account_name);
1948         else
1949                 entry->account_name = "";
1950
1951         if (fullname != NULL)
1952                 entry->fullname = talloc_strdup(mem_ctx, fullname);
1953         else
1954                 entry->fullname = "";
1955
1956         if (description != NULL)
1957                 entry->description = talloc_strdup(mem_ctx, description);
1958         else
1959                 entry->description = "";
1960 }
1961
1962 struct group_search {
1963         GROUP_MAP **groups;
1964         size_t num_groups, current_group;
1965 };
1966
1967 static bool next_entry_groups(struct pdb_search *s,
1968                               struct samr_displayentry *entry)
1969 {
1970         struct group_search *state = (struct group_search *)s->private_data;
1971         uint32_t rid;
1972         GROUP_MAP *map;
1973
1974         if (state->current_group == state->num_groups)
1975                 return False;
1976
1977         map = state->groups[state->current_group];
1978
1979         sid_peek_rid(&map->sid, &rid);
1980
1981         fill_displayentry(s, rid, 0, map->nt_name, NULL, map->comment, entry);
1982
1983         state->current_group += 1;
1984         return True;
1985 }
1986
1987 static void search_end_groups(struct pdb_search *search)
1988 {
1989         struct group_search *state =
1990                 (struct group_search *)search->private_data;
1991         TALLOC_FREE(state->groups);
1992 }
1993
1994 static bool pdb_search_grouptype(struct pdb_methods *methods,
1995                                  struct pdb_search *search,
1996                                  const struct dom_sid *sid, enum lsa_SidType type)
1997 {
1998         struct group_search *state;
1999
2000         state = talloc_zero(search, struct group_search);
2001         if (state == NULL) {
2002                 DEBUG(0, ("talloc failed\n"));
2003                 return False;
2004         }
2005
2006         if (!NT_STATUS_IS_OK(methods->enum_group_mapping(methods, sid, type,
2007                                                          &state->groups, &state->num_groups,
2008                                                          True))) {
2009                 DEBUG(0, ("Could not enum groups\n"));
2010                 return False;
2011         }
2012
2013         state->current_group = 0;
2014         search->private_data = state;
2015         search->next_entry = next_entry_groups;
2016         search->search_end = search_end_groups;
2017         return True;
2018 }
2019
2020 static bool pdb_default_search_groups(struct pdb_methods *methods,
2021                                       struct pdb_search *search)
2022 {
2023         return pdb_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
2024 }
2025
2026 static bool pdb_default_search_aliases(struct pdb_methods *methods,
2027                                        struct pdb_search *search,
2028                                        const struct dom_sid *sid)
2029 {
2030
2031         return pdb_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
2032 }
2033
2034 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
2035                                                      uint32_t idx)
2036 {
2037         if (idx < search->num_entries)
2038                 return &search->cache[idx];
2039
2040         if (search->search_ended)
2041                 return NULL;
2042
2043         while (idx >= search->num_entries) {
2044                 struct samr_displayentry entry;
2045
2046                 if (!search->next_entry(search, &entry)) {
2047                         search->search_end(search);
2048                         search->search_ended = True;
2049                         break;
2050                 }
2051
2052                 ADD_TO_LARGE_ARRAY(search, struct samr_displayentry,
2053                                    entry, &search->cache, &search->num_entries,
2054                                    &search->cache_size);
2055         }
2056
2057         return (search->num_entries > idx) ? &search->cache[idx] : NULL;
2058 }
2059
2060 struct pdb_search *pdb_search_users(TALLOC_CTX *mem_ctx, uint32_t acct_flags)
2061 {
2062         struct pdb_methods *pdb = pdb_get_methods();
2063         struct pdb_search *result;
2064
2065         result = pdb_search_init(mem_ctx, PDB_USER_SEARCH);
2066         if (result == NULL) {
2067                 return NULL;
2068         }
2069
2070         if (!pdb->search_users(pdb, result, acct_flags)) {
2071                 TALLOC_FREE(result);
2072                 return NULL;
2073         }
2074         return result;
2075 }
2076
2077 struct pdb_search *pdb_search_groups(TALLOC_CTX *mem_ctx)
2078 {
2079         struct pdb_methods *pdb = pdb_get_methods();
2080         struct pdb_search *result;
2081
2082         result = pdb_search_init(mem_ctx, PDB_GROUP_SEARCH);
2083         if (result == NULL) {
2084                  return NULL;
2085         }
2086
2087         if (!pdb->search_groups(pdb, result)) {
2088                 TALLOC_FREE(result);
2089                 return NULL;
2090         }
2091         return result;
2092 }
2093
2094 struct pdb_search *pdb_search_aliases(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
2095 {
2096         struct pdb_methods *pdb = pdb_get_methods();
2097         struct pdb_search *result;
2098
2099         if (pdb == NULL) return NULL;
2100
2101         result = pdb_search_init(mem_ctx, PDB_ALIAS_SEARCH);
2102         if (result == NULL) {
2103                 return NULL;
2104         }
2105
2106         if (!pdb->search_aliases(pdb, result, sid)) {
2107                 TALLOC_FREE(result);
2108                 return NULL;
2109         }
2110         return result;
2111 }
2112
2113 uint32_t pdb_search_entries(struct pdb_search *search,
2114                           uint32_t start_idx, uint32_t max_entries,
2115                           struct samr_displayentry **result)
2116 {
2117         struct samr_displayentry *end_entry;
2118         uint32_t end_idx = start_idx+max_entries-1;
2119
2120         /* The first entry needs to be searched after the last. Otherwise the
2121          * first entry might have moved due to a realloc during the search for
2122          * the last entry. */
2123
2124         end_entry = pdb_search_getentry(search, end_idx);
2125         *result = pdb_search_getentry(search, start_idx);
2126
2127         if (end_entry != NULL)
2128                 return max_entries;
2129
2130         if (start_idx >= search->num_entries)
2131                 return 0;
2132
2133         return search->num_entries - start_idx;
2134 }
2135
2136 /*******************************************************************
2137  trustdom methods
2138  *******************************************************************/
2139
2140 bool pdb_get_trusteddom_pw(const char *domain, char** pwd, struct dom_sid *sid,
2141                            time_t *pass_last_set_time)
2142 {
2143         struct pdb_methods *pdb = pdb_get_methods();
2144         return pdb->get_trusteddom_pw(pdb, domain, pwd, sid,
2145                         pass_last_set_time);
2146 }
2147
2148 NTSTATUS pdb_get_trusteddom_creds(const char *domain, TALLOC_CTX *mem_ctx,
2149                                   struct cli_credentials **creds)
2150 {
2151         struct pdb_methods *pdb = pdb_get_methods();
2152         return pdb->get_trusteddom_creds(pdb, domain, mem_ctx, creds);
2153 }
2154
2155 bool pdb_set_trusteddom_pw(const char* domain, const char* pwd,
2156                            const struct dom_sid *sid)
2157 {
2158         struct pdb_methods *pdb = pdb_get_methods();
2159         return pdb->set_trusteddom_pw(pdb, domain, pwd, sid);
2160 }
2161
2162 bool pdb_del_trusteddom_pw(const char *domain)
2163 {
2164         struct pdb_methods *pdb = pdb_get_methods();
2165         return pdb->del_trusteddom_pw(pdb, domain);
2166 }
2167
2168 NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2169                               struct trustdom_info ***domains)
2170 {
2171         struct pdb_methods *pdb = pdb_get_methods();
2172         return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains);
2173 }
2174
2175 /*******************************************************************
2176  the defaults for trustdom methods:
2177  these simply call the original passdb/secrets.c actions,
2178  to be replaced by pdb_ldap.
2179  *******************************************************************/
2180
2181 static bool pdb_default_get_trusteddom_pw(struct pdb_methods *methods,
2182                                           const char *domain,
2183                                           char** pwd,
2184                                           struct dom_sid *sid,
2185                                           time_t *pass_last_set_time)
2186 {
2187         return secrets_fetch_trusted_domain_password(domain, pwd,
2188                                 sid, pass_last_set_time);
2189
2190 }
2191
2192 static NTSTATUS pdb_default_get_trusteddom_creds(struct pdb_methods *methods,
2193                                                  const char *domain,
2194                                                  TALLOC_CTX *mem_ctx,
2195                                                  struct cli_credentials **creds)
2196 {
2197         *creds = NULL;
2198         return NT_STATUS_NOT_IMPLEMENTED;
2199 }
2200
2201 static bool pdb_default_set_trusteddom_pw(struct pdb_methods *methods,
2202                                           const char* domain,
2203                                           const char* pwd,
2204                                           const struct dom_sid *sid)
2205 {
2206         return secrets_store_trusted_domain_password(domain, pwd, sid);
2207 }
2208
2209 static bool pdb_default_del_trusteddom_pw(struct pdb_methods *methods,
2210                                           const char *domain)
2211 {
2212         return trusted_domain_password_delete(domain);
2213 }
2214
2215 static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods,
2216                                              TALLOC_CTX *mem_ctx,
2217                                              uint32_t *num_domains,
2218                                              struct trustdom_info ***domains)
2219 {
2220         return secrets_trusted_domains(mem_ctx, num_domains, domains);
2221 }
2222
2223 /*******************************************************************
2224  trusted_domain methods
2225  *******************************************************************/
2226
2227 NTSTATUS pdb_get_trusted_domain(TALLOC_CTX *mem_ctx, const char *domain,
2228                                 struct pdb_trusted_domain **td)
2229 {
2230         struct pdb_methods *pdb = pdb_get_methods();
2231         return pdb->get_trusted_domain(pdb, mem_ctx, domain, td);
2232 }
2233
2234 NTSTATUS pdb_get_trusted_domain_by_sid(TALLOC_CTX *mem_ctx, struct dom_sid *sid,
2235                                 struct pdb_trusted_domain **td)
2236 {
2237         struct pdb_methods *pdb = pdb_get_methods();
2238         return pdb->get_trusted_domain_by_sid(pdb, mem_ctx, sid, td);
2239 }
2240
2241 NTSTATUS pdb_set_trusted_domain(const char* domain,
2242                                 const struct pdb_trusted_domain *td)
2243 {
2244         struct pdb_methods *pdb = pdb_get_methods();
2245         return pdb->set_trusted_domain(pdb, domain, td);
2246 }
2247
2248 NTSTATUS pdb_del_trusted_domain(const char *domain)
2249 {
2250         struct pdb_methods *pdb = pdb_get_methods();
2251         return pdb->del_trusted_domain(pdb, domain);
2252 }
2253
2254 NTSTATUS pdb_enum_trusted_domains(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2255                                   struct pdb_trusted_domain ***domains)
2256 {
2257         struct pdb_methods *pdb = pdb_get_methods();
2258         return pdb->enum_trusted_domains(pdb, mem_ctx, num_domains, domains);
2259 }
2260
2261 static NTSTATUS pdb_default_get_trusted_domain(struct pdb_methods *methods,
2262                                                TALLOC_CTX *mem_ctx,
2263                                                const char *domain,
2264                                                struct pdb_trusted_domain **td)
2265 {
2266         struct trustAuthInOutBlob taiob;
2267         struct AuthenticationInformation aia;
2268         struct pdb_trusted_domain *tdom;
2269         enum ndr_err_code ndr_err;
2270         time_t last_set_time;
2271         char *pwd;
2272         bool ok;
2273
2274         tdom = talloc(mem_ctx, struct pdb_trusted_domain);
2275         if (!tdom) {
2276                 return NT_STATUS_NO_MEMORY;
2277         }
2278
2279         tdom->domain_name = talloc_strdup(tdom, domain);
2280         tdom->netbios_name = talloc_strdup(tdom, domain);
2281         if (!tdom->domain_name || !tdom->netbios_name) {
2282                 talloc_free(tdom);
2283                 return NT_STATUS_NO_MEMORY;
2284         }
2285
2286         tdom->trust_auth_incoming = data_blob_null;
2287
2288         ok = pdb_get_trusteddom_pw(domain, &pwd, &tdom->security_identifier,
2289                                    &last_set_time);
2290         if (!ok) {
2291                 talloc_free(tdom);
2292                 return NT_STATUS_UNSUCCESSFUL;
2293         }
2294
2295         ZERO_STRUCT(taiob);
2296         ZERO_STRUCT(aia);
2297         taiob.count = 1;
2298         taiob.current.count = 1;
2299         taiob.current.array = &aia;
2300         unix_to_nt_time(&aia.LastUpdateTime, last_set_time);
2301
2302         aia.AuthType = TRUST_AUTH_TYPE_CLEAR;
2303         aia.AuthInfo.clear.size = strlen(pwd);
2304         aia.AuthInfo.clear.password = (uint8_t *)talloc_memdup(tdom, pwd,
2305                                                                aia.AuthInfo.clear.size);
2306         SAFE_FREE(pwd);
2307         if (aia.AuthInfo.clear.password == NULL) {
2308                 talloc_free(tdom);
2309                 return NT_STATUS_NO_MEMORY;
2310         }
2311
2312         taiob.previous.count = 0;
2313         taiob.previous.array = NULL;
2314
2315         ndr_err = ndr_push_struct_blob(&tdom->trust_auth_outgoing,
2316                                         tdom, &taiob,
2317                         (ndr_push_flags_fn_t)ndr_push_trustAuthInOutBlob);
2318         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2319                 talloc_free(tdom);
2320                 return NT_STATUS_UNSUCCESSFUL;
2321         }
2322
2323         tdom->trust_direction = LSA_TRUST_DIRECTION_OUTBOUND;
2324         tdom->trust_type = LSA_TRUST_TYPE_DOWNLEVEL;
2325         tdom->trust_attributes = 0;
2326         tdom->trust_forest_trust_info = data_blob_null;
2327
2328         *td = tdom;
2329         return NT_STATUS_OK;
2330 }
2331
2332 static NTSTATUS pdb_default_get_trusted_domain_by_sid(struct pdb_methods *methods,
2333                                                       TALLOC_CTX *mem_ctx,
2334                                                       struct dom_sid *sid,
2335                                                       struct pdb_trusted_domain **td)
2336 {
2337         return NT_STATUS_NOT_IMPLEMENTED;
2338 }
2339
2340 #define IS_NULL_DATA_BLOB(d) ((d).data == NULL && (d).length == 0)
2341
2342 static NTSTATUS pdb_default_set_trusted_domain(struct pdb_methods *methods,
2343                                                const char* domain,
2344                                                const struct pdb_trusted_domain *td)
2345 {
2346         struct trustAuthInOutBlob taiob;
2347         struct AuthenticationInformation *aia;
2348         enum ndr_err_code ndr_err;
2349         char *pwd;
2350         bool ok;
2351
2352         if (td->trust_attributes != 0 ||
2353             td->trust_type != LSA_TRUST_TYPE_DOWNLEVEL ||
2354             td->trust_direction != LSA_TRUST_DIRECTION_OUTBOUND ||
2355             !IS_NULL_DATA_BLOB(td->trust_auth_incoming) ||
2356             !IS_NULL_DATA_BLOB(td->trust_forest_trust_info)) {
2357             return NT_STATUS_NOT_IMPLEMENTED;
2358         }
2359
2360         ZERO_STRUCT(taiob);
2361         ndr_err = ndr_pull_struct_blob(&td->trust_auth_outgoing, talloc_tos(),
2362                               &taiob,
2363                               (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2364         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2365                 return NT_STATUS_UNSUCCESSFUL;
2366         }
2367
2368         aia = (struct AuthenticationInformation *) taiob.current.array;
2369
2370         if (taiob.count != 1 || taiob.current.count != 1 ||
2371             taiob.previous.count != 0 ||
2372             aia->AuthType != TRUST_AUTH_TYPE_CLEAR) {
2373             return NT_STATUS_NOT_IMPLEMENTED;
2374         }
2375
2376         pwd = talloc_strndup(talloc_tos(), (char *) aia->AuthInfo.clear.password,
2377                              aia->AuthInfo.clear.size);
2378         if (!pwd) {
2379                 return NT_STATUS_NO_MEMORY;
2380         }
2381
2382         ok = pdb_set_trusteddom_pw(domain, pwd, &td->security_identifier);
2383         if (!ok) {
2384                 return NT_STATUS_UNSUCCESSFUL;
2385         }
2386
2387         return NT_STATUS_OK;
2388 }
2389
2390 static NTSTATUS pdb_default_del_trusted_domain(struct pdb_methods *methods,
2391                                                const char *domain)
2392 {
2393         return NT_STATUS_NOT_IMPLEMENTED;
2394 }
2395
2396 static NTSTATUS pdb_default_enum_trusted_domains(struct pdb_methods *methods,
2397                                                  TALLOC_CTX *mem_ctx,
2398                                                  uint32_t *num_domains,
2399                                                  struct pdb_trusted_domain ***domains)
2400 {
2401         return NT_STATUS_NOT_IMPLEMENTED;
2402 }
2403
2404 static struct pdb_domain_info *pdb_default_get_domain_info(
2405         struct pdb_methods *m, TALLOC_CTX *mem_ctx)
2406 {
2407         return NULL;
2408 }
2409
2410 /*****************************************************************
2411  UPN suffixes
2412  *****************************************************************/
2413 static NTSTATUS pdb_default_enum_upn_suffixes(struct pdb_methods *pdb,
2414                                               TALLOC_CTX *mem_ctx,
2415                                               uint32_t *num_suffixes,
2416                                               char ***suffixes)
2417 {
2418         return NT_STATUS_NOT_IMPLEMENTED;
2419 }
2420
2421 static NTSTATUS pdb_default_set_upn_suffixes(struct pdb_methods *pdb,
2422                                              uint32_t num_suffixes,
2423                                              const char **suffixes)
2424 {
2425         return NT_STATUS_NOT_IMPLEMENTED;
2426 }
2427
2428 NTSTATUS pdb_enum_upn_suffixes(TALLOC_CTX *mem_ctx,
2429                                uint32_t *num_suffixes,
2430                                char ***suffixes)
2431 {
2432         struct pdb_methods *pdb = pdb_get_methods();
2433         return pdb->enum_upn_suffixes(pdb, mem_ctx, num_suffixes, suffixes);
2434 }
2435
2436 NTSTATUS pdb_set_upn_suffixes(uint32_t num_suffixes,
2437                               const char **suffixes)
2438 {
2439         struct pdb_methods *pdb = pdb_get_methods();
2440         return pdb->set_upn_suffixes(pdb, num_suffixes, suffixes);
2441 }
2442
2443 /*******************************************************************
2444  idmap control methods
2445  *******************************************************************/
2446 static bool pdb_default_is_responsible_for_our_sam(
2447                                         struct pdb_methods *methods)
2448 {
2449         return true;
2450 }
2451
2452 static bool pdb_default_is_responsible_for_builtin(
2453                                         struct pdb_methods *methods)
2454 {
2455         return true;
2456 }
2457
2458 static bool pdb_default_is_responsible_for_wellknown(
2459                                         struct pdb_methods *methods)
2460 {
2461         return false;
2462 }
2463
2464 static bool pdb_default_is_responsible_for_unix_users(
2465                                         struct pdb_methods *methods)
2466 {
2467         return true;
2468 }
2469
2470 static bool pdb_default_is_responsible_for_unix_groups(
2471                                         struct pdb_methods *methods)
2472 {
2473         return true;
2474 }
2475
2476 static bool pdb_default_is_responsible_for_everything_else(
2477                                         struct pdb_methods *methods)
2478 {
2479         return false;
2480 }
2481
2482 bool pdb_is_responsible_for_our_sam(void)
2483 {
2484         struct pdb_methods *pdb = pdb_get_methods();
2485         return pdb->is_responsible_for_our_sam(pdb);
2486 }
2487
2488 bool pdb_is_responsible_for_builtin(void)
2489 {
2490         struct pdb_methods *pdb = pdb_get_methods();
2491         return pdb->is_responsible_for_builtin(pdb);
2492 }
2493
2494 bool pdb_is_responsible_for_wellknown(void)
2495 {
2496         struct pdb_methods *pdb = pdb_get_methods();
2497         return pdb->is_responsible_for_wellknown(pdb);
2498 }
2499
2500 bool pdb_is_responsible_for_unix_users(void)
2501 {
2502         struct pdb_methods *pdb = pdb_get_methods();
2503         return pdb->is_responsible_for_unix_users(pdb);
2504 }
2505
2506 bool pdb_is_responsible_for_unix_groups(void)
2507 {
2508         struct pdb_methods *pdb = pdb_get_methods();
2509         return pdb->is_responsible_for_unix_groups(pdb);
2510 }
2511
2512 bool pdb_is_responsible_for_everything_else(void)
2513 {
2514         struct pdb_methods *pdb = pdb_get_methods();
2515         return pdb->is_responsible_for_everything_else(pdb);
2516 }
2517
2518 /*******************************************************************
2519  secret methods
2520  *******************************************************************/
2521
2522 NTSTATUS pdb_get_secret(TALLOC_CTX *mem_ctx,
2523                         const char *secret_name,
2524                         DATA_BLOB *secret_current,
2525                         NTTIME *secret_current_lastchange,
2526                         DATA_BLOB *secret_old,
2527                         NTTIME *secret_old_lastchange,
2528                         struct security_descriptor **sd)
2529 {
2530         struct pdb_methods *pdb = pdb_get_methods();
2531         return pdb->get_secret(pdb, mem_ctx, secret_name,
2532                                secret_current, secret_current_lastchange,
2533                                secret_old, secret_old_lastchange,
2534                                sd);
2535 }
2536
2537 NTSTATUS pdb_set_secret(const char *secret_name,
2538                         DATA_BLOB *secret_current,
2539                         DATA_BLOB *secret_old,
2540                         struct security_descriptor *sd)
2541 {
2542         struct pdb_methods *pdb = pdb_get_methods();
2543         return pdb->set_secret(pdb, secret_name,
2544                                secret_current,
2545                                secret_old,
2546                                sd);
2547 }
2548
2549 NTSTATUS pdb_delete_secret(const char *secret_name)
2550 {
2551         struct pdb_methods *pdb = pdb_get_methods();
2552         return pdb->delete_secret(pdb, secret_name);
2553 }
2554
2555 static NTSTATUS pdb_default_get_secret(struct pdb_methods *methods,
2556                                        TALLOC_CTX *mem_ctx,
2557                                        const char *secret_name,
2558                                        DATA_BLOB *secret_current,
2559                                        NTTIME *secret_current_lastchange,
2560                                        DATA_BLOB *secret_old,
2561                                        NTTIME *secret_old_lastchange,
2562                                        struct security_descriptor **sd)
2563 {
2564         return lsa_secret_get(mem_ctx, secret_name,
2565                               secret_current,
2566                               secret_current_lastchange,
2567                               secret_old,
2568                               secret_old_lastchange,
2569                               sd);
2570 }
2571
2572 static NTSTATUS pdb_default_set_secret(struct pdb_methods *methods,
2573                                        const char *secret_name,
2574                                        DATA_BLOB *secret_current,
2575                                        DATA_BLOB *secret_old,
2576                                        struct security_descriptor *sd)
2577 {
2578         return lsa_secret_set(secret_name,
2579                               secret_current,
2580                               secret_old,
2581                               sd);
2582 }
2583
2584 static NTSTATUS pdb_default_delete_secret(struct pdb_methods *methods,
2585                                           const char *secret_name)
2586 {
2587         return lsa_secret_delete(secret_name);
2588 }
2589
2590 /*******************************************************************
2591  Create a pdb_methods structure and initialize it with the default
2592  operations.  In this way a passdb module can simply implement
2593  the functionality it cares about.  However, normally this is done
2594  in groups of related functions.
2595 *******************************************************************/
2596
2597 NTSTATUS make_pdb_method( struct pdb_methods **methods )
2598 {
2599         /* allocate memory for the structure as its own talloc CTX */
2600
2601         *methods = talloc_zero(NULL, struct pdb_methods);
2602         if (*methods == NULL) {
2603                 return NT_STATUS_NO_MEMORY;
2604         }
2605
2606         (*methods)->get_domain_info = pdb_default_get_domain_info;
2607         (*methods)->getsampwnam = pdb_default_getsampwnam;
2608         (*methods)->getsampwsid = pdb_default_getsampwsid;
2609         (*methods)->create_user = pdb_default_create_user;
2610         (*methods)->delete_user = pdb_default_delete_user;
2611         (*methods)->add_sam_account = pdb_default_add_sam_account;
2612         (*methods)->update_sam_account = pdb_default_update_sam_account;
2613         (*methods)->delete_sam_account = pdb_default_delete_sam_account;
2614         (*methods)->rename_sam_account = pdb_default_rename_sam_account;
2615         (*methods)->update_login_attempts = pdb_default_update_login_attempts;
2616
2617         (*methods)->getgrsid = pdb_default_getgrsid;
2618         (*methods)->getgrgid = pdb_default_getgrgid;
2619         (*methods)->getgrnam = pdb_default_getgrnam;
2620         (*methods)->create_dom_group = pdb_default_create_dom_group;
2621         (*methods)->delete_dom_group = pdb_default_delete_dom_group;
2622         (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
2623         (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
2624         (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
2625         (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
2626         (*methods)->enum_group_members = pdb_default_enum_group_members;
2627         (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
2628         (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2629         (*methods)->add_groupmem = pdb_default_add_groupmem;
2630         (*methods)->del_groupmem = pdb_default_del_groupmem;
2631         (*methods)->create_alias = pdb_default_create_alias;
2632         (*methods)->delete_alias = pdb_default_delete_alias;
2633         (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2634         (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2635         (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2636         (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2637         (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2638         (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2639         (*methods)->lookup_rids = pdb_default_lookup_rids;
2640         (*methods)->get_account_policy = pdb_default_get_account_policy;
2641         (*methods)->set_account_policy = pdb_default_set_account_policy;
2642         (*methods)->get_seq_num = pdb_default_get_seq_num;
2643         (*methods)->id_to_sid = pdb_default_id_to_sid;
2644         (*methods)->sid_to_id = pdb_default_sid_to_id;
2645
2646         (*methods)->search_groups = pdb_default_search_groups;
2647         (*methods)->search_aliases = pdb_default_search_aliases;
2648
2649         (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw;
2650         (*methods)->get_trusteddom_creds = pdb_default_get_trusteddom_creds;
2651         (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw;
2652         (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw;
2653         (*methods)->enum_trusteddoms  = pdb_default_enum_trusteddoms;
2654
2655         (*methods)->get_trusted_domain = pdb_default_get_trusted_domain;
2656         (*methods)->get_trusted_domain_by_sid = pdb_default_get_trusted_domain_by_sid;
2657         (*methods)->set_trusted_domain = pdb_default_set_trusted_domain;
2658         (*methods)->del_trusted_domain = pdb_default_del_trusted_domain;
2659         (*methods)->enum_trusted_domains = pdb_default_enum_trusted_domains;
2660
2661         (*methods)->get_secret = pdb_default_get_secret;
2662         (*methods)->set_secret = pdb_default_set_secret;
2663         (*methods)->delete_secret = pdb_default_delete_secret;
2664
2665         (*methods)->enum_upn_suffixes = pdb_default_enum_upn_suffixes;
2666         (*methods)->set_upn_suffixes  = pdb_default_set_upn_suffixes;
2667
2668         (*methods)->is_responsible_for_our_sam =
2669                                 pdb_default_is_responsible_for_our_sam;
2670         (*methods)->is_responsible_for_builtin =
2671                                 pdb_default_is_responsible_for_builtin;
2672         (*methods)->is_responsible_for_wellknown =
2673                                 pdb_default_is_responsible_for_wellknown;
2674         (*methods)->is_responsible_for_unix_users =
2675                                 pdb_default_is_responsible_for_unix_users;
2676         (*methods)->is_responsible_for_unix_groups =
2677                                 pdb_default_is_responsible_for_unix_groups;
2678         (*methods)->is_responsible_for_everything_else =
2679                                 pdb_default_is_responsible_for_everything_else;
2680
2681         return NT_STATUS_OK;
2682 }