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 "serverid.h"
  29 #include "../librpc/gen_ndr/samr.h"
  30 #include "../librpc/gen_ndr/drsblobs.h"
  31 #include "../librpc/gen_ndr/ndr_drsblobs.h"
  32 #include "../librpc/gen_ndr/idmap.h"
  33 #include "../lib/util/memcache.h"
  34 #include "nsswitch/winbind_client.h"
  35 #include "../libcli/security/security.h"
  36 #include "../lib/util/util_pw.h"
  37 #include "passdb/pdb_secrets.h"
  38 #include "lib/util_sid_passdb.h"
  39 #include "idmap_cache.h"
  40 #include "lib/util/string_wrappers.h"
  41 #include "lib/global_contexts.h"
  42
  43 #undef DBGC_CLASS
  44 #define DBGC_CLASS DBGC_PASSDB
  45
  46 static_decl_pdb;
  47
  48 static struct pdb_init_function_entry *backends = NULL;
  49
  50 static void lazy_initialize_passdb(void)
  51 {
  52         static bool initialized = False;
  53         if(initialized) {
  54                 return;
  55         }
  56         static_init_pdb(NULL);
  57         initialized = True;
  58 }
  59
  60 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid,
  61                                   const char **name,
  62                                   enum lsa_SidType *psid_name_use,
  63                                   uid_t *uid, gid_t *gid);
  64
  65 NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
  66 {
  67         struct pdb_init_function_entry *entry = NULL;
  68
  69         if(version != PASSDB_INTERFACE_VERSION) {
  70                 DEBUG(0,("Can't register passdb backend!\n"
  71                          "You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
  72                          "while this version of samba uses version %d\n",
  73                          version,PASSDB_INTERFACE_VERSION));
  74                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
  75         }
  76
  77         if (!name || !init) {
  78                 return NT_STATUS_INVALID_PARAMETER;
  79         }
  80
  81         DEBUG(5,("Attempting to register passdb backend %s\n", name));
  82
  83         /* Check for duplicates */
  84         if (pdb_find_backend_entry(name)) {
  85                 DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
  86                 return NT_STATUS_OBJECT_NAME_COLLISION;
  87         }
  88
  89         entry = SMB_XMALLOC_P(struct pdb_init_function_entry);
  90         entry->name = smb_xstrdup(name);
  91         entry->init = init;
  92
  93         DLIST_ADD(backends, entry);
  94         DEBUG(5,("Successfully added passdb backend '%s'\n", name));
  95         return NT_STATUS_OK;
  96 }
  97
  98 struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
  99 {
 100         struct pdb_init_function_entry *entry = backends;
 101
 102         while(entry) {
 103                 if (strcmp(entry->name, name)==0) return entry;
 104                 entry = entry->next;
 105         }
 106
 107         return NULL;
 108 }
 109
 110 const struct pdb_init_function_entry *pdb_get_backends(void)
 111 {
 112         return backends;
 113 }
 114
 115
 116 /*
 117  * The event context for the passdb backend. I know this is a bad hack and yet
 118  * another static variable, but our pdb API is a global thing per
 119  * definition. The first use for this is the LDAP idle function, more might be
 120  * added later.
 121  *
 122  * I don't feel too bad about this static variable, it replaces the
 123  * smb_idle_event_list that used to exist in lib/module.c.  -- VL
 124  */
 125
 126 static struct tevent_context *pdb_tevent_ctx;
 127
 128 struct tevent_context *pdb_get_tevent_context(void)
 129 {
 130         return pdb_tevent_ctx;
 131 }
 132
 133 /******************************************************************
 134   Make a pdb_methods from scratch
 135  *******************************************************************/
 136
 137 NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected)
 138 {
 139         char *module_name = smb_xstrdup(selected);
 140         char *module_location = NULL, *p;
 141         struct pdb_init_function_entry *entry;
 142         NTSTATUS nt_status;
 143
 144         lazy_initialize_passdb();
 145
 146         p = strchr(module_name, ':');
 147
 148         if (p) {
 149                 *p = 0;
 150                 module_location = p+1;
 151                 trim_char(module_location, ' ', ' ');
 152         }
 153
 154         trim_char(module_name, ' ', ' ');
 155
 156
 157         DEBUG(5,("Attempting to find a passdb backend to match %s (%s)\n", selected, module_name));
 158
 159         entry = pdb_find_backend_entry(module_name);
 160
 161         /* Try to find a module that contains this module */
 162         if (!entry) {
 163                 DEBUG(2,("No builtin backend found, trying to load plugin\n"));
 164                 if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
 165                         DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
 166                         SAFE_FREE(module_name);
 167                         return NT_STATUS_UNSUCCESSFUL;
 168                 }
 169         }
 170
 171         /* No such backend found */
 172         if(!entry) {
 173                 DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
 174                 SAFE_FREE(module_name);
 175                 return NT_STATUS_INVALID_PARAMETER;
 176         }
 177
 178         DEBUG(5,("Found pdb backend %s\n", module_name));
 179
 180         nt_status = entry->init(methods, module_location);
 181         if (!NT_STATUS_IS_OK(nt_status)) {
 182                 DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n",
 183                         selected, nt_errstr(nt_status)));
 184                 SAFE_FREE(module_name);
 185                 return nt_status;
 186         }
 187
 188         SAFE_FREE(module_name);
 189
 190         DEBUG(5,("pdb backend %s has a valid init\n", selected));
 191
 192         return nt_status;
 193 }
 194
 195 /******************************************************************
 196  Return an already initialized pdb_methods structure
 197 *******************************************************************/
 198
 199 static struct pdb_methods *pdb_get_methods_reload( bool reload )
 200 {
 201         static struct pdb_methods *pdb = NULL;
 202         const char *backend = lp_passdb_backend();
 203         NTSTATUS status = NT_STATUS_OK;
 204
 205         if ( pdb && reload ) {
 206                 if (pdb->free_private_data != NULL) {
 207                         pdb->free_private_data( &(pdb->private_data) );
 208                 }
 209                 status = make_pdb_method_name(&pdb, backend);
 210         }
 211
 212         if ( !pdb ) {
 213                 status = make_pdb_method_name(&pdb, backend);
 214         }
 215
 216         if (!NT_STATUS_IS_OK(status)) {
 217                 return NULL;
 218         }
 219
 220         return pdb;
 221 }
 222
 223 static struct pdb_methods *pdb_get_methods(void)
 224 {
 225         struct pdb_methods *pdb;
 226
 227         pdb = pdb_get_methods_reload(false);
 228         if (!pdb) {
 229                 char *msg = NULL;
 230                 if (asprintf(&msg, "pdb_get_methods: "
 231                              "failed to get pdb methods for backend %s\n",
 232                              lp_passdb_backend()) > 0) {
 233                         smb_panic(msg);
 234                 } else {
 235                         smb_panic("pdb_get_methods");
 236                 }
 237         }
 238
 239         return pdb;
 240 }
 241
 242 struct pdb_domain_info *pdb_get_domain_info(TALLOC_CTX *mem_ctx)
 243 {
 244         struct pdb_methods *pdb = pdb_get_methods();
 245         return pdb->get_domain_info(pdb, mem_ctx);
 246 }
 247
 248 /**
 249  * @brief Check if the user account has been locked out and try to unlock it.
 250  *
 251  * If the user has been automatically locked out and a lockout duration is set,
 252  * then check if we can unlock the account and reset the bad password values.
 253  *
 254  * @param[in]  sampass  The sam user to check.
 255  *
 256  * @return              True if the function was successfull, false on an error.
 257  */
 258 static bool pdb_try_account_unlock(struct samu *sampass)
 259 {
 260         uint32_t acb_info = pdb_get_acct_ctrl(sampass);
 261
 262         if ((acb_info & ACB_NORMAL) && (acb_info & ACB_AUTOLOCK)) {
 263                 uint32_t lockout_duration;
 264                 time_t bad_password_time;
 265                 time_t now = time(NULL);
 266                 bool ok;
 267
 268                 ok = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION,
 269                                             &lockout_duration);
 270                 if (!ok) {
 271                         DEBUG(0, ("pdb_try_account_unlock: "
 272                                   "pdb_get_account_policy failed.\n"));
 273                         return false;
 274                 }
 275
 276                 if (lockout_duration == (uint32_t) -1 ||
 277                     lockout_duration == 0) {
 278                         DEBUG(9, ("pdb_try_account_unlock: No reset duration, "
 279                                   "can't reset autolock\n"));
 280                         return false;
 281                 }
 282                 lockout_duration *= 60;
 283
 284                 bad_password_time = pdb_get_bad_password_time(sampass);
 285                 if (bad_password_time == (time_t) 0) {
 286                         DEBUG(2, ("pdb_try_account_unlock: Account %s "
 287                                   "administratively locked out "
 288                                   "with no bad password "
 289                                   "time. Leaving locked out.\n",
 290                                   pdb_get_username(sampass)));
 291                         return true;
 292                 }
 293
 294                 if ((bad_password_time +
 295                      convert_uint32_t_to_time_t(lockout_duration)) < now) {
 296                         NTSTATUS status;
 297
 298                         pdb_set_acct_ctrl(sampass, acb_info & ~ACB_AUTOLOCK,
 299                                           PDB_CHANGED);
 300                         pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
 301                         pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
 302
 303                         become_root();
 304                         status = pdb_update_sam_account(sampass);
 305                         unbecome_root();
 306                         if (!NT_STATUS_IS_OK(status)) {
 307                                 DEBUG(0, ("_samr_OpenUser: Couldn't "
 308                                           "update account %s - %s\n",
 309                                           pdb_get_username(sampass),
 310                                           nt_errstr(status)));
 311                                 return false;
 312                         }
 313                 }
 314         }
 315
 316         return true;
 317 }
 318
 319 /**
 320  * @brief Get a sam user structure by the given username.
 321  *
 322  * This functions also checks if the account has been automatically locked out
 323  * and unlocks it if a lockout duration time has been defined and the time has
 324  * elapsed.
 325  *
 326  * @param[in]  sam_acct  The sam user structure to fill.
 327  *
 328  * @param[in]  username  The username to look for.
 329  *
 330  * @return               True on success, false on error.
 331  */
 332 bool pdb_getsampwnam(struct samu *sam_acct, const char *username)
 333 {
 334         struct pdb_methods *pdb = pdb_get_methods();
 335         struct samu *for_cache;
 336         const struct dom_sid *user_sid;
 337         NTSTATUS status;
 338         bool ok;
 339
 340         status = pdb->getsampwnam(pdb, sam_acct, username);
 341         if (!NT_STATUS_IS_OK(status)) {
 342                 return false;
 343         }
 344
 345         ok = pdb_try_account_unlock(sam_acct);
 346         if (!ok) {
 347                 DEBUG(1, ("pdb_getsampwnam: Failed to unlock account %s\n",
 348                           username));
 349         }
 350
 351         for_cache = samu_new(NULL);
 352         if (for_cache == NULL) {
 353                 return False;
 354         }
 355
 356         if (!pdb_copy_sam_account(for_cache, sam_acct)) {
 357                 TALLOC_FREE(for_cache);
 358                 return False;
 359         }
 360
 361         user_sid = pdb_get_user_sid(for_cache);
 362
 363         memcache_add_talloc(NULL, PDB_GETPWSID_CACHE,
 364                             data_blob_const(user_sid, sizeof(*user_sid)),
 365                             &for_cache);
 366
 367         return True;
 368 }
 369
 370 /**********************************************************************
 371 **********************************************************************/
 372
 373 static bool guest_user_info( struct samu *user )
 374 {
 375         struct passwd *pwd;
 376         NTSTATUS result;
 377         const char *guestname = lp_guest_account();
 378
 379         pwd = Get_Pwnam_alloc(talloc_tos(), guestname);
 380         if (pwd == NULL) {
 381                 DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
 382                         guestname));
 383                 return False;
 384         }
 385
 386         result = samu_set_unix(user, pwd );
 387
 388         TALLOC_FREE( pwd );
 389
 390         return NT_STATUS_IS_OK( result );
 391 }
 392
 393 /**
 394  * @brief Get a sam user structure by the given username.
 395  *
 396  * This functions also checks if the account has been automatically locked out
 397  * and unlocks it if a lockout duration time has been defined and the time has
 398  * elapsed.
 399  *
 400  *
 401  * @param[in]  sam_acct  The sam user structure to fill.
 402  *
 403  * @param[in]  sid       The user SDI to look up.
 404  *
 405  * @return               True on success, false on error.
 406  */
 407 bool pdb_getsampwsid(struct samu *sam_acct, const struct dom_sid *sid)
 408 {
 409         struct pdb_methods *pdb = pdb_get_methods();
 410         uint32_t rid;
 411         void *cache_data;
 412         bool ok = false;
 413
 414         /* hard code the Guest RID of 501 */
 415
 416         if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
 417                 return False;
 418
 419         if ( rid == DOMAIN_RID_GUEST ) {
 420                 DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
 421                 return guest_user_info( sam_acct );
 422         }
 423
 424         /* check the cache first */
 425
 426         cache_data = memcache_lookup_talloc(
 427                 NULL, PDB_GETPWSID_CACHE, data_blob_const(sid, sizeof(*sid)));
 428
 429         if (cache_data != NULL) {
 430                 struct samu *cache_copy = talloc_get_type_abort(
 431                         cache_data, struct samu);
 432
 433                 ok = pdb_copy_sam_account(sam_acct, cache_copy);
 434         } else {
 435                 ok = NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
 436         }
 437
 438         if (!ok) {
 439                 return false;
 440         }
 441
 442         ok = pdb_try_account_unlock(sam_acct);
 443         if (!ok) {
 444                 DEBUG(1, ("pdb_getsampwsid: Failed to unlock account %s\n",
 445                           sam_acct->username));
 446         }
 447
 448         return true;
 449 }
 450
 451 static NTSTATUS pdb_default_create_user(struct pdb_methods *methods,
 452                                         TALLOC_CTX *tmp_ctx, const char *name,
 453                                         uint32_t acb_info, uint32_t *rid)
 454 {
 455         const struct loadparm_substitution *lp_sub =
 456                 loadparm_s3_global_substitution();
 457         struct samu *sam_pass;
 458         NTSTATUS status;
 459         struct passwd *pwd;
 460
 461         if ((sam_pass = samu_new(tmp_ctx)) == NULL) {
 462                 return NT_STATUS_NO_MEMORY;
 463         }
 464
 465         if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) {
 466                 char *add_script = NULL;
 467                 int add_ret;
 468                 fstring name2;
 469
 470                 if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') {
 471                         add_script = lp_add_user_script(tmp_ctx, lp_sub);
 472                 } else {
 473                         add_script = lp_add_machine_script(tmp_ctx, lp_sub);
 474                 }
 475
 476                 if (!add_script || add_script[0] == '\0') {
 477                         DEBUG(3, ("Could not find user %s and no add script "
 478                                   "defined\n", name));
 479                         return NT_STATUS_NO_SUCH_USER;
 480                 }
 481
 482                 /* lowercase the username before creating the Unix account for
 483                    compatibility with previous Samba releases */
 484                 fstrcpy( name2, name );
 485                 if (!strlower_m( name2 )) {
 486                         return NT_STATUS_INVALID_PARAMETER;
 487                 }
 488                 add_script = talloc_all_string_sub(tmp_ctx,
 489                                         add_script,
 490                                         "%u",
 491                                         name2);
 492                 if (!add_script) {
 493                         return NT_STATUS_NO_MEMORY;
 494                 }
 495                 add_ret = smbrun(add_script, NULL, NULL);
 496                 DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n",
 497                                         add_script, add_ret));
 498                 if (add_ret == 0) {
 499                         smb_nscd_flush_user_cache();
 500                 }
 501
 502                 flush_pwnam_cache();
 503
 504                 pwd = Get_Pwnam_alloc(tmp_ctx, name);
 505
 506                 if(pwd == NULL) {
 507                         DEBUG(3, ("Could not find user %s, add script did not work\n", name));
 508                         return NT_STATUS_NO_SUCH_USER;
 509                 }
 510         }
 511
 512         /* we have a valid SID coming out of this call */
 513
 514         status = samu_alloc_rid_unix(methods, sam_pass, pwd);
 515
 516         TALLOC_FREE( pwd );
 517
 518         if (!NT_STATUS_IS_OK(status)) {
 519                 DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status)));
 520                 return status;
 521         }
 522
 523         if (!sid_peek_check_rid(get_global_sam_sid(),
 524                                 pdb_get_user_sid(sam_pass), rid)) {
 525                 DEBUG(0, ("Could not get RID of fresh user\n"));
 526                 return NT_STATUS_INTERNAL_ERROR;
 527         }
 528
 529         /* Use the username case specified in the original request */
 530
 531         pdb_set_username( sam_pass, name, PDB_SET );
 532
 533         /* Disable the account on creation, it does not have a reasonable password yet. */
 534
 535         acb_info |= ACB_DISABLED;
 536
 537         pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
 538
 539         status = methods->add_sam_account(methods, sam_pass);
 540
 541         TALLOC_FREE(sam_pass);
 542
 543         return status;
 544 }
 545
 546 NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32_t flags,
 547                          uint32_t *rid)
 548 {
 549         struct pdb_methods *pdb = pdb_get_methods();
 550         return pdb->create_user(pdb, mem_ctx, name, flags, rid);
 551 }
 552
 553 /****************************************************************************
 554  Delete a UNIX user on demand.
 555 ****************************************************************************/
 556
 557 static int smb_delete_user(const char *unix_user)
 558 {
 559         const struct loadparm_substitution *lp_sub =
 560                 loadparm_s3_global_substitution();
 561         char *del_script = NULL;
 562         int ret;
 563
 564         /* safety check */
 565
 566         if ( strequal( unix_user, "root" ) ) {
 567                 DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n"));
 568                 return -1;
 569         }
 570
 571         del_script = lp_delete_user_script(talloc_tos(), lp_sub);
 572         if (!del_script || !*del_script) {
 573                 return -1;
 574         }
 575         del_script = talloc_all_string_sub(talloc_tos(),
 576                                 del_script,
 577                                 "%u",
 578                                 unix_user);
 579         if (!del_script) {
 580                 return -1;
 581         }
 582         ret = smbrun(del_script, NULL, NULL);
 583         flush_pwnam_cache();
 584         if (ret == 0) {
 585                 smb_nscd_flush_user_cache();
 586         }
 587         DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
 588
 589         return ret;
 590 }
 591
 592 static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods,
 593                                         TALLOC_CTX *mem_ctx,
 594                                         struct samu *sam_acct)
 595 {
 596         NTSTATUS status;
 597         fstring username;
 598
 599         status = methods->delete_sam_account(methods, sam_acct);
 600         if (!NT_STATUS_IS_OK(status)) {
 601                 return status;
 602         }
 603
 604         /*
 605          * Now delete the unix side ....
 606          * note: we don't check if the delete really happened as the script is
 607          * not necessary present and maybe the sysadmin doesn't want to delete
 608          * the unix side
 609          */
 610
 611         /* always lower case the username before handing it off to
 612            external scripts */
 613
 614         fstrcpy( username, pdb_get_username(sam_acct) );
 615         if (!strlower_m( username )) {
 616                 return status;
 617         }
 618
 619         smb_delete_user( username );
 620
 621         return status;
 622 }
 623
 624 NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct)
 625 {
 626         struct pdb_methods *pdb = pdb_get_methods();
 627         uid_t uid = -1;
 628         NTSTATUS status;
 629         const struct dom_sid *user_sid;
 630         char *msg_data;
 631
 632         user_sid = pdb_get_user_sid(sam_acct);
 633
 634         /* sanity check to make sure we don't delete root */
 635
 636         if ( !sid_to_uid(user_sid, &uid ) ) {
 637                 return NT_STATUS_NO_SUCH_USER;
 638         }
 639
 640         if ( uid == 0 ) {
 641                 return NT_STATUS_ACCESS_DENIED;
 642         }
 643
 644         memcache_delete(NULL,
 645                         PDB_GETPWSID_CACHE,
 646                         data_blob_const(user_sid, sizeof(*user_sid)));
 647
 648         status = pdb->delete_user(pdb, mem_ctx, sam_acct);
 649         if (!NT_STATUS_IS_OK(status)) {
 650                 return status;
 651         }
 652
 653         msg_data = talloc_asprintf(mem_ctx, "USER %s",
 654                                    pdb_get_username(sam_acct));
 655         if (!msg_data) {
 656                 /* not fatal, and too late to rollback,
 657                  * just return */
 658                 return status;
 659         }
 660         messaging_send_all(global_messaging_context(),
 661                            ID_CACHE_DELETE,
 662                            msg_data,
 663                            strlen(msg_data) + 1);
 664
 665         TALLOC_FREE(msg_data);
 666         return status;
 667 }
 668
 669 NTSTATUS pdb_add_sam_account(struct samu *sam_acct)
 670 {
 671         struct pdb_methods *pdb = pdb_get_methods();
 672         return pdb->add_sam_account(pdb, sam_acct);
 673 }
 674
 675 NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
 676 {
 677         struct pdb_methods *pdb = pdb_get_methods();
 678
 679         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 680
 681         return pdb->update_sam_account(pdb, sam_acct);
 682 }
 683
 684 NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
 685 {
 686         struct pdb_methods *pdb = pdb_get_methods();
 687         const struct dom_sid *user_sid = pdb_get_user_sid(sam_acct);
 688
 689         memcache_delete(NULL,
 690                         PDB_GETPWSID_CACHE,
 691                         data_blob_const(user_sid, sizeof(*user_sid)));
 692
 693         return pdb->delete_sam_account(pdb, sam_acct);
 694 }
 695
 696 NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
 697 {
 698         struct pdb_methods *pdb = pdb_get_methods();
 699         uid_t uid;
 700         NTSTATUS status;
 701
 702         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 703
 704         /* sanity check to make sure we don't rename root */
 705
 706         if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) {
 707                 return NT_STATUS_NO_SUCH_USER;
 708         }
 709
 710         if ( uid == 0 ) {
 711                 return NT_STATUS_ACCESS_DENIED;
 712         }
 713
 714         status = pdb->rename_sam_account(pdb, oldname, newname);
 715
 716         /* always flush the cache here just to be safe */
 717         flush_pwnam_cache();
 718
 719         return status;
 720 }
 721
 722 NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, bool success)
 723 {
 724         struct pdb_methods *pdb = pdb_get_methods();
 725         return pdb->update_login_attempts(pdb, sam_acct, success);
 726 }
 727
 728 bool pdb_getgrsid(GROUP_MAP *map, struct dom_sid sid)
 729 {
 730         struct pdb_methods *pdb = pdb_get_methods();
 731         return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
 732 }
 733
 734 bool pdb_getgrgid(GROUP_MAP *map, gid_t gid)
 735 {
 736         struct pdb_methods *pdb = pdb_get_methods();
 737         return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
 738 }
 739
 740 bool pdb_getgrnam(GROUP_MAP *map, const char *name)
 741 {
 742         struct pdb_methods *pdb = pdb_get_methods();
 743         return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
 744 }
 745
 746 static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods,
 747                                              TALLOC_CTX *mem_ctx,
 748                                              const char *name,
 749                                              uint32_t *rid)
 750 {
 751         struct dom_sid group_sid;
 752         struct group *grp;
 753         struct dom_sid_buf tmp;
 754
 755         grp = getgrnam(name);
 756
 757         if (grp == NULL) {
 758                 gid_t gid;
 759
 760                 if (smb_create_group(name, &gid) != 0) {
 761                         return NT_STATUS_ACCESS_DENIED;
 762                 }
 763
 764                 grp = getgrgid(gid);
 765         }
 766
 767         if (grp == NULL) {
 768                 return NT_STATUS_ACCESS_DENIED;
 769         }
 770
 771         if (pdb_capabilities() & PDB_CAP_STORE_RIDS) {
 772                 if (!pdb_new_rid(rid)) {
 773                         return NT_STATUS_ACCESS_DENIED;
 774                 }
 775         } else {
 776                 *rid = algorithmic_pdb_gid_to_group_rid( grp->gr_gid );
 777         }
 778
 779         sid_compose(&group_sid, get_global_sam_sid(), *rid);
 780
 781         return add_initial_entry(
 782                 grp->gr_gid,
 783                 dom_sid_str_buf(&group_sid, &tmp),
 784                 SID_NAME_DOM_GRP,
 785                 name,
 786                 NULL);
 787 }
 788
 789 NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name,
 790                               uint32_t *rid)
 791 {
 792         struct pdb_methods *pdb = pdb_get_methods();
 793         return pdb->create_dom_group(pdb, mem_ctx, name, rid);
 794 }
 795
 796 static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods,
 797                                              TALLOC_CTX *mem_ctx,
 798                                              uint32_t rid)
 799 {
 800         struct dom_sid group_sid;
 801         GROUP_MAP *map;
 802         NTSTATUS status;
 803         struct group *grp;
 804         const char *grp_name;
 805
 806         map = talloc_zero(mem_ctx, GROUP_MAP);
 807         if (!map) {
 808                 return NT_STATUS_NO_MEMORY;
 809         }
 810
 811         /* coverity */
 812         map->gid = (gid_t) -1;
 813
 814         sid_compose(&group_sid, get_global_sam_sid(), rid);
 815
 816         if (!get_domain_group_from_sid(group_sid, map)) {
 817                 DEBUG(10, ("Could not find group for rid %d\n", rid));
 818                 return NT_STATUS_NO_SUCH_GROUP;
 819         }
 820
 821         /* We need the group name for the smb_delete_group later on */
 822
 823         if (map->gid == (gid_t)-1) {
 824                 return NT_STATUS_NO_SUCH_GROUP;
 825         }
 826
 827         grp = getgrgid(map->gid);
 828         if (grp == NULL) {
 829                 return NT_STATUS_NO_SUCH_GROUP;
 830         }
 831
 832         TALLOC_FREE(map);
 833
 834         /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
 835
 836         grp_name = talloc_strdup(mem_ctx, grp->gr_name);
 837         if (grp_name == NULL) {
 838                 return NT_STATUS_NO_MEMORY;
 839         }
 840
 841         status = pdb_delete_group_mapping_entry(group_sid);
 842
 843         if (!NT_STATUS_IS_OK(status)) {
 844                 return status;
 845         }
 846
 847         /* Don't check the result of smb_delete_group */
 848
 849         smb_delete_group(grp_name);
 850
 851         return NT_STATUS_OK;
 852 }
 853
 854 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32_t rid)
 855 {
 856         struct pdb_methods *pdb = pdb_get_methods();
 857         return pdb->delete_dom_group(pdb, mem_ctx, rid);
 858 }
 859
 860 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
 861 {
 862         struct pdb_methods *pdb = pdb_get_methods();
 863         return pdb->add_group_mapping_entry(pdb, map);
 864 }
 865
 866 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
 867 {
 868         struct pdb_methods *pdb = pdb_get_methods();
 869         return pdb->update_group_mapping_entry(pdb, map);
 870 }
 871
 872 NTSTATUS pdb_delete_group_mapping_entry(struct dom_sid sid)
 873 {
 874         struct pdb_methods *pdb = pdb_get_methods();
 875         return pdb->delete_group_mapping_entry(pdb, sid);
 876 }
 877
 878 bool pdb_enum_group_mapping(const struct dom_sid *sid,
 879                             enum lsa_SidType sid_name_use,
 880                             GROUP_MAP ***pp_rmap,
 881                             size_t *p_num_entries,
 882                             bool unix_only)
 883 {
 884         struct pdb_methods *pdb = pdb_get_methods();
 885         return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
 886                 pp_rmap, p_num_entries, unix_only));
 887 }
 888
 889 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
 890                                 const struct dom_sid *sid,
 891                                 uint32_t **pp_member_rids,
 892                                 size_t *p_num_members)
 893 {
 894         struct pdb_methods *pdb = pdb_get_methods();
 895         NTSTATUS result;
 896
 897         result = pdb->enum_group_members(pdb, mem_ctx,
 898                         sid, pp_member_rids, p_num_members);
 899
 900         /* special check for rid 513 */
 901
 902         if ( !NT_STATUS_IS_OK( result ) ) {
 903                 uint32_t rid;
 904
 905                 sid_peek_rid( sid, &rid );
 906
 907                 if ( rid == DOMAIN_RID_USERS ) {
 908                         *p_num_members = 0;
 909                         *pp_member_rids = NULL;
 910
 911                         return NT_STATUS_OK;
 912                 }
 913         }
 914
 915         return result;
 916 }
 917
 918 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
 919                                     struct dom_sid **pp_sids, gid_t **pp_gids,
 920                                     uint32_t *p_num_groups)
 921 {
 922         struct pdb_methods *pdb = pdb_get_methods();
 923         return pdb->enum_group_memberships(
 924                 pdb, mem_ctx, user,
 925                 pp_sids, pp_gids, p_num_groups);
 926 }
 927
 928 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
 929                                                    TALLOC_CTX *mem_ctx,
 930                                                    struct samu *sampass)
 931 {
 932         struct group *grp;
 933         gid_t gid;
 934
 935         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
 936             (grp = getgrgid(gid)) == NULL) {
 937                 return NT_STATUS_INVALID_PRIMARY_GROUP;
 938         }
 939
 940         if (smb_set_primary_group(grp->gr_name,
 941                                   pdb_get_username(sampass)) != 0) {
 942                 return NT_STATUS_ACCESS_DENIED;
 943         }
 944
 945         return NT_STATUS_OK;
 946 }
 947
 948 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
 949 {
 950         struct pdb_methods *pdb = pdb_get_methods();
 951         return pdb->set_unix_primary_group(pdb, mem_ctx, user);
 952 }
 953
 954 /*
 955  * Helper function to see whether a user is in a group. We can't use
 956  * user_in_group_sid here because this creates dependencies only smbd can
 957  * fulfil.
 958  */
 959
 960 static bool pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
 961                               const struct dom_sid *group_sid)
 962 {
 963         struct dom_sid *sids;
 964         gid_t *gids;
 965         uint32_t i, num_groups;
 966
 967         if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
 968                                                         &sids, &gids,
 969                                                         &num_groups))) {
 970                 return False;
 971         }
 972
 973         for (i=0; i<num_groups; i++) {
 974                 if (dom_sid_equal(group_sid, &sids[i])) {
 975                         return True;
 976                 }
 977         }
 978         return False;
 979 }
 980
 981 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
 982                                          TALLOC_CTX *mem_ctx,
 983                                          uint32_t group_rid,
 984                                          uint32_t member_rid)
 985 {
 986         struct dom_sid group_sid, member_sid;
 987         struct samu *account = NULL;
 988         GROUP_MAP *map;
 989         struct group *grp;
 990         struct passwd *pwd;
 991         const char *group_name;
 992         uid_t uid;
 993
 994         map = talloc_zero(mem_ctx, GROUP_MAP);
 995         if (!map) {
 996                 return NT_STATUS_NO_MEMORY;
 997         }
 998
 999         /* coverity */
1000         map->gid = (gid_t) -1;
1001
1002         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
1003         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
1004
1005         if (!get_domain_group_from_sid(group_sid, map) ||
1006             (map->gid == (gid_t)-1) ||
1007             ((grp = getgrgid(map->gid)) == NULL)) {
1008                 return NT_STATUS_NO_SUCH_GROUP;
1009         }
1010
1011         TALLOC_FREE(map);
1012
1013         group_name = talloc_strdup(mem_ctx, grp->gr_name);
1014         if (group_name == NULL) {
1015                 return NT_STATUS_NO_MEMORY;
1016         }
1017
1018         if ( !(account = samu_new( NULL )) ) {
1019                 return NT_STATUS_NO_MEMORY;
1020         }
1021
1022         if (!pdb_getsampwsid(account, &member_sid) ||
1023             !sid_to_uid(&member_sid, &uid) ||
1024             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1025                 return NT_STATUS_NO_SUCH_USER;
1026         }
1027
1028         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1029                 return NT_STATUS_MEMBER_IN_GROUP;
1030         }
1031
1032         /*
1033          * ok, the group exist, the user exist, the user is not in the group,
1034          * we can (finally) add it to the group !
1035          */
1036
1037         smb_add_user_group(group_name, pwd->pw_name);
1038
1039         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1040                 return NT_STATUS_ACCESS_DENIED;
1041         }
1042
1043         return NT_STATUS_OK;
1044 }
1045
1046 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1047                           uint32_t member_rid)
1048 {
1049         struct pdb_methods *pdb = pdb_get_methods();
1050         return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
1051 }
1052
1053 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
1054                                          TALLOC_CTX *mem_ctx,
1055                                          uint32_t group_rid,
1056                                          uint32_t member_rid)
1057 {
1058         struct dom_sid group_sid, member_sid;
1059         struct samu *account = NULL;
1060         GROUP_MAP *map;
1061         struct group *grp;
1062         struct passwd *pwd;
1063         const char *group_name;
1064         uid_t uid;
1065
1066         map = talloc_zero(mem_ctx, GROUP_MAP);
1067         if (!map) {
1068                 return NT_STATUS_NO_MEMORY;
1069         }
1070
1071         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
1072         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
1073
1074         if (!get_domain_group_from_sid(group_sid, map) ||
1075             (map->gid == (gid_t)-1) ||
1076             ((grp = getgrgid(map->gid)) == NULL)) {
1077                 return NT_STATUS_NO_SUCH_GROUP;
1078         }
1079
1080         TALLOC_FREE(map);
1081
1082         group_name = talloc_strdup(mem_ctx, grp->gr_name);
1083         if (group_name == NULL) {
1084                 return NT_STATUS_NO_MEMORY;
1085         }
1086
1087         if ( !(account = samu_new( NULL )) ) {
1088                 return NT_STATUS_NO_MEMORY;
1089         }
1090
1091         if (!pdb_getsampwsid(account, &member_sid) ||
1092             !sid_to_uid(&member_sid, &uid) ||
1093             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1094                 return NT_STATUS_NO_SUCH_USER;
1095         }
1096
1097         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1098                 return NT_STATUS_MEMBER_NOT_IN_GROUP;
1099         }
1100
1101         /*
1102          * ok, the group exist, the user exist, the user is in the group,
1103          * we can (finally) delete it from the group!
1104          */
1105
1106         smb_delete_user_group(group_name, pwd->pw_name);
1107
1108         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1109                 return NT_STATUS_ACCESS_DENIED;
1110         }
1111
1112         return NT_STATUS_OK;
1113 }
1114
1115 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1116                           uint32_t member_rid)
1117 {
1118         struct pdb_methods *pdb = pdb_get_methods();
1119         return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
1120 }
1121
1122 NTSTATUS pdb_create_alias(const char *name, uint32_t *rid)
1123 {
1124         struct pdb_methods *pdb = pdb_get_methods();
1125         return pdb->create_alias(pdb, name, rid);
1126 }
1127
1128 NTSTATUS pdb_delete_alias(const struct dom_sid *sid)
1129 {
1130         struct pdb_methods *pdb = pdb_get_methods();
1131         return pdb->delete_alias(pdb, sid);
1132 }
1133
1134 NTSTATUS pdb_get_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1135 {
1136         struct pdb_methods *pdb = pdb_get_methods();
1137         return pdb->get_aliasinfo(pdb, sid, info);
1138 }
1139
1140 NTSTATUS pdb_set_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1141 {
1142         struct pdb_methods *pdb = pdb_get_methods();
1143         return pdb->set_aliasinfo(pdb, sid, info);
1144 }
1145
1146 NTSTATUS pdb_add_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1147 {
1148         struct pdb_methods *pdb = pdb_get_methods();
1149         return pdb->add_aliasmem(pdb, alias, member);
1150 }
1151
1152 NTSTATUS pdb_del_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1153 {
1154         struct pdb_methods *pdb = pdb_get_methods();
1155         return pdb->del_aliasmem(pdb, alias, member);
1156 }
1157
1158 NTSTATUS pdb_enum_aliasmem(const struct dom_sid *alias, TALLOC_CTX *mem_ctx,
1159                            struct dom_sid **pp_members, size_t *p_num_members)
1160 {
1161         struct pdb_methods *pdb = pdb_get_methods();
1162         return pdb->enum_aliasmem(pdb, alias, mem_ctx, pp_members,
1163                                   p_num_members);
1164 }
1165
1166 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
1167                                     const struct dom_sid *domain_sid,
1168                                     const struct dom_sid *members, size_t num_members,
1169                                     uint32_t **pp_alias_rids,
1170                                     size_t *p_num_alias_rids)
1171 {
1172         struct pdb_methods *pdb = pdb_get_methods();
1173         return pdb->enum_alias_memberships(pdb, mem_ctx,
1174                                                        domain_sid,
1175                                                        members, num_members,
1176                                                        pp_alias_rids,
1177                                                        p_num_alias_rids);
1178 }
1179
1180 NTSTATUS pdb_lookup_rids(const struct dom_sid *domain_sid,
1181                          int num_rids,
1182                          uint32_t *rids,
1183                          const char **names,
1184                          enum lsa_SidType *attrs)
1185 {
1186         struct pdb_methods *pdb = pdb_get_methods();
1187         return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
1188 }
1189
1190 bool pdb_get_account_policy(enum pdb_policy_type type, uint32_t *value)
1191 {
1192         struct pdb_methods *pdb = pdb_get_methods();
1193         NTSTATUS status;
1194
1195         become_root();
1196         status = pdb->get_account_policy(pdb, type, value);
1197         unbecome_root();
1198
1199         return NT_STATUS_IS_OK(status);
1200 }
1201
1202 bool pdb_set_account_policy(enum pdb_policy_type type, uint32_t value)
1203 {
1204         struct pdb_methods *pdb = pdb_get_methods();
1205         NTSTATUS status;
1206
1207         become_root();
1208         status = pdb->set_account_policy(pdb, type, value);
1209         unbecome_root();
1210
1211         return NT_STATUS_IS_OK(status);
1212 }
1213
1214 bool pdb_get_seq_num(time_t *seq_num)
1215 {
1216         struct pdb_methods *pdb = pdb_get_methods();
1217         return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
1218 }
1219
1220 /*
1221  * Instead of passing down a gid or uid, this function sends down a pointer
1222  * to a unixid.
1223  *
1224  * This acts as an in-out variable so that the idmap functions can correctly
1225  * receive ID_TYPE_BOTH, filling in cache details correctly rather than forcing
1226  * the cache to store ID_TYPE_UID or ID_TYPE_GID.
1227  */
1228 bool pdb_id_to_sid(struct unixid *id, struct dom_sid *sid)
1229 {
1230         struct pdb_methods *pdb = pdb_get_methods();
1231         bool ret;
1232
1233         ret = pdb->id_to_sid(pdb, id, sid);
1234
1235         if (ret) {
1236                 idmap_cache_set_sid2unixid(sid, id);
1237         }
1238
1239         return ret;
1240 }
1241
1242 bool pdb_sid_to_id(const struct dom_sid *sid, struct unixid *id)
1243 {
1244         struct pdb_methods *pdb = pdb_get_methods();
1245         bool ret;
1246
1247         /* only ask the backend if it is responsible */
1248         if (!sid_check_object_is_for_passdb(sid)) {
1249                 return false;
1250         }
1251
1252         ret = pdb->sid_to_id(pdb, sid, id);
1253
1254         if (ret) {
1255                 idmap_cache_set_sid2unixid(sid, id);
1256         }
1257
1258         return ret;
1259 }
1260
1261 uint32_t pdb_capabilities(void)
1262 {
1263         struct pdb_methods *pdb = pdb_get_methods();
1264         return pdb->capabilities(pdb);
1265 }
1266
1267 /********************************************************************
1268  Allocate a new RID from the passdb backend.  Verify that it is free
1269  by calling lookup_global_sam_rid() to verify that the RID is not
1270  in use.  This handles servers that have existing users or groups
1271  with add RIDs (assigned from previous algorithmic mappings)
1272 ********************************************************************/
1273
1274 bool pdb_new_rid(uint32_t *rid)
1275 {
1276         struct pdb_methods *pdb = pdb_get_methods();
1277         const char *name = NULL;
1278         enum lsa_SidType type;
1279         uint32_t allocated_rid = 0;
1280         int i;
1281         TALLOC_CTX *ctx;
1282
1283         if ((pdb_capabilities() & PDB_CAP_STORE_RIDS) == 0) {
1284                 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1285                           "are active\n"));
1286                 return False;
1287         }
1288
1289         if (algorithmic_rid_base() != BASE_RID) {
1290                 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1291                           "without algorithmic RIDs is chosen.\n"));
1292                 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1293                              "add', set the maximum used RID\n"));
1294                 DEBUGADD(0, ("and remove the parameter\n"));
1295                 return False;
1296         }
1297
1298         if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1299                 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1300                 return False;
1301         }
1302
1303         /* Attempt to get an unused RID (max tires is 250...yes that it is
1304            and arbitrary number I pulkled out of my head).   -- jerry */
1305
1306         for ( i=0; allocated_rid==0 && i<250; i++ ) {
1307                 /* get a new RID */
1308
1309                 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1310                         return False;
1311                 }
1312
1313                 /* validate that the RID is not in use */
1314
1315                 if (lookup_global_sam_rid(ctx, allocated_rid, &name, &type, NULL, NULL)) {
1316                         allocated_rid = 0;
1317                 }
1318         }
1319
1320         TALLOC_FREE( ctx );
1321
1322         if ( allocated_rid == 0 ) {
1323                 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1324                 return False;
1325         }
1326
1327         *rid = allocated_rid;
1328
1329         return True;
1330 }
1331
1332 /***************************************************************
1333   Initialize the static context (at smbd startup etc).
1334
1335   If uninitialised, context will auto-init on first use.
1336  ***************************************************************/
1337
1338 bool initialize_password_db(bool reload, struct tevent_context *tevent_ctx)
1339 {
1340         if (tevent_ctx) {
1341                 pdb_tevent_ctx = tevent_ctx;
1342         }
1343         return (pdb_get_methods_reload(reload) != NULL);
1344 }
1345
1346 /***************************************************************************
1347   Default implementations of some functions.
1348  ****************************************************************************/
1349
1350 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1351 {
1352         return NT_STATUS_NO_SUCH_USER;
1353 }
1354
1355 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
1356 {
1357         return NT_STATUS_NO_SUCH_USER;
1358 }
1359
1360 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1361 {
1362         return NT_STATUS_NOT_IMPLEMENTED;
1363 }
1364
1365 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1366 {
1367         return NT_STATUS_NOT_IMPLEMENTED;
1368 }
1369
1370 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1371 {
1372         return NT_STATUS_NOT_IMPLEMENTED;
1373 }
1374
1375 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1376 {
1377         return NT_STATUS_NOT_IMPLEMENTED;
1378 }
1379
1380 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, bool success)
1381 {
1382         /* Only the pdb_nds backend implements this, by
1383          * default just return ok. */
1384         return NT_STATUS_OK;
1385 }
1386
1387 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t *value)
1388 {
1389         return account_policy_get(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1390 }
1391
1392 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t value)
1393 {
1394         return account_policy_set(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1395 }
1396
1397 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1398 {
1399         *seq_num = time(NULL);
1400         return NT_STATUS_OK;
1401 }
1402
1403 static bool pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid,
1404                                    struct dom_sid *sid)
1405 {
1406         struct samu *sampw = NULL;
1407         struct passwd *unix_pw;
1408         fstring pw_name = { 0 };
1409         bool ret;
1410
1411         unix_pw = getpwuid( uid );
1412
1413         if ( !unix_pw ) {
1414                 DEBUG(4,("pdb_default_uid_to_sid: host has no idea of uid "
1415                          "%lu\n", (unsigned long)uid));
1416                 return False;
1417         }
1418
1419         if (unix_pw->pw_name == NULL) {
1420                 DBG_DEBUG("No pw_name for uid %d\n", (int)uid);
1421                 return false;
1422         }
1423
1424         /*
1425          * Make a copy, "unix_pw" might go away soon.
1426          */
1427         fstrcpy(pw_name, unix_pw->pw_name);
1428
1429         if ( !(sampw = samu_new( NULL )) ) {
1430                 DEBUG(0,("pdb_default_uid_to_sid: samu_new() failed!\n"));
1431                 return False;
1432         }
1433
1434         become_root();
1435         ret = NT_STATUS_IS_OK(methods->getsampwnam(methods, sampw, pw_name));
1436         unbecome_root();
1437
1438         if (!ret) {
1439                 DEBUG(5, ("pdb_default_uid_to_sid: Did not find user "
1440                           "%s (%u)\n", unix_pw->pw_name, (unsigned int)uid));
1441                 TALLOC_FREE(sampw);
1442                 return False;
1443         }
1444
1445         sid_copy(sid, pdb_get_user_sid(sampw));
1446
1447         TALLOC_FREE(sampw);
1448
1449         return True;
1450 }
1451
1452 static bool pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1453                                    struct dom_sid *sid)
1454 {
1455         GROUP_MAP *map;
1456
1457         map = talloc_zero(NULL, GROUP_MAP);
1458         if (!map) {
1459                 return false;
1460         }
1461
1462         if (!NT_STATUS_IS_OK(methods->getgrgid(methods, map, gid))) {
1463                 TALLOC_FREE(map);
1464                 return false;
1465         }
1466
1467         sid_copy(sid, &map->sid);
1468         TALLOC_FREE(map);
1469         return true;
1470 }
1471
1472 static bool pdb_default_id_to_sid(struct pdb_methods *methods, struct unixid *id,
1473                                    struct dom_sid *sid)
1474 {
1475         switch (id->type) {
1476         case ID_TYPE_UID:
1477                 return pdb_default_uid_to_sid(methods, id->id, sid);
1478
1479         case ID_TYPE_GID:
1480                 return pdb_default_gid_to_sid(methods, id->id, sid);
1481
1482         default:
1483                 return false;
1484         }
1485 }
1486 /**
1487  * The "Unix User" and "Unix Group" domains have a special
1488  * id mapping that is a rid-algorithm with range starting at 0.
1489  */
1490 bool pdb_sid_to_id_unix_users_and_groups(const struct dom_sid *sid,
1491                                          struct unixid *id)
1492 {
1493         uint32_t rid;
1494
1495         id->id = -1;
1496
1497         if (sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid)) {
1498                 id->id = rid;
1499                 id->type = ID_TYPE_UID;
1500                 return true;
1501         }
1502
1503         if (sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid)) {
1504                 id->id = rid;
1505                 id->type = ID_TYPE_GID;
1506                 return true;
1507         }
1508
1509         return false;
1510 }
1511
1512 static bool pdb_default_sid_to_id(struct pdb_methods *methods,
1513                                   const struct dom_sid *sid,
1514                                   struct unixid *id)
1515 {
1516         TALLOC_CTX *mem_ctx;
1517         bool ret = False;
1518         uint32_t rid;
1519         struct dom_sid_buf buf;
1520
1521         id->id = -1;
1522
1523         mem_ctx = talloc_new(NULL);
1524
1525         if (mem_ctx == NULL) {
1526                 DEBUG(0, ("talloc_new failed\n"));
1527                 return False;
1528         }
1529
1530         if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1531                 const char *name;
1532                 enum lsa_SidType type;
1533                 uid_t uid = (uid_t)-1;
1534                 gid_t gid = (gid_t)-1;
1535                 /* Here we might have users as well as groups and aliases */
1536                 ret = lookup_global_sam_rid(mem_ctx, rid, &name, &type, &uid, &gid);
1537                 if (ret) {
1538                         switch (type) {
1539                         case SID_NAME_DOM_GRP:
1540                         case SID_NAME_ALIAS:
1541                                 id->type = ID_TYPE_GID;
1542                                 id->id = gid;
1543                                 break;
1544                         case SID_NAME_USER:
1545                                 id->type = ID_TYPE_UID;
1546                                 id->id = uid;
1547                                 break;
1548                         default:
1549                                 DEBUG(5, ("SID %s belongs to our domain, and "
1550                                           "an object exists in the database, "
1551                                            "but it is neither a user nor a "
1552                                            "group (got type %d).\n",
1553                                           dom_sid_str_buf(sid, &buf),
1554                                           type));
1555                                 ret = false;
1556                         }
1557                 } else {
1558                         DEBUG(5, ("SID %s belongs to our domain, but there is "
1559                                   "no corresponding object in the database.\n",
1560                                   dom_sid_str_buf(sid, &buf)));
1561                 }
1562                 goto done;
1563         }
1564
1565         /*
1566          * "Unix User" and "Unix Group"
1567          */
1568         ret = pdb_sid_to_id_unix_users_and_groups(sid, id);
1569         if (ret) {
1570                 goto done;
1571         }
1572
1573         /* BUILTIN */
1574
1575         if (sid_check_is_in_builtin(sid) ||
1576             sid_check_is_in_wellknown_domain(sid)) {
1577                 /* Here we only have aliases */
1578                 GROUP_MAP *map;
1579
1580                 map = talloc_zero(mem_ctx, GROUP_MAP);
1581                 if (!map) {
1582                         ret = false;
1583                         goto done;
1584                 }
1585
1586                 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, map, *sid))) {
1587                         DEBUG(10, ("Could not find map for sid %s\n",
1588                                    dom_sid_str_buf(sid, &buf)));
1589                         goto done;
1590                 }
1591                 if ((map->sid_name_use != SID_NAME_ALIAS) &&
1592                     (map->sid_name_use != SID_NAME_WKN_GRP)) {
1593                         DEBUG(10, ("Map for sid %s is a %s, expected an "
1594                                    "alias\n",
1595                                    dom_sid_str_buf(sid, &buf),
1596                                    sid_type_lookup(map->sid_name_use)));
1597                         goto done;
1598                 }
1599
1600                 id->id = map->gid;
1601                 id->type = ID_TYPE_GID;
1602                 ret = True;
1603                 goto done;
1604         }
1605
1606         DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n",
1607                   dom_sid_str_buf(sid, &buf)));
1608
1609  done:
1610
1611         TALLOC_FREE(mem_ctx);
1612         return ret;
1613 }
1614
1615 static bool get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, uint32_t *p_num)
1616 {
1617         struct group *grp;
1618         char **gr;
1619         struct passwd *pwd;
1620         bool winbind_env;
1621         bool ret = False;
1622
1623         *pp_uids = NULL;
1624         *p_num = 0;
1625
1626         /* We only look at our own sam, so don't care about imported stuff */
1627         winbind_env = winbind_env_set();
1628         (void)winbind_off();
1629
1630         if ((grp = getgrgid(gid)) == NULL) {
1631                 /* allow winbindd lookups, but only if they weren't already disabled */
1632                 goto done;
1633         }
1634
1635         /* Primary group members */
1636         setpwent();
1637         while ((pwd = getpwent()) != NULL) {
1638                 if (pwd->pw_gid == gid) {
1639                         if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1640                                                 pp_uids, p_num)) {
1641                                 goto done;
1642                         }
1643                 }
1644         }
1645         endpwent();
1646
1647         /* Secondary group members */
1648         for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1649                 struct passwd *pw = getpwnam(*gr);
1650
1651                 if (pw == NULL)
1652                         continue;
1653                 if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) {
1654                         goto done;
1655                 }
1656         }
1657
1658         ret = True;
1659
1660   done:
1661
1662         /* allow winbindd lookups, but only if they weren't already disabled */
1663         if (!winbind_env) {
1664                 (void)winbind_on();
1665         }
1666
1667         return ret;
1668 }
1669
1670 static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1671                                                TALLOC_CTX *mem_ctx,
1672                                                const struct dom_sid *group,
1673                                                uint32_t **pp_member_rids,
1674                                                size_t *p_num_members)
1675 {
1676         gid_t gid;
1677         uid_t *uids;
1678         uint32_t i, num_uids;
1679
1680         *pp_member_rids = NULL;
1681         *p_num_members = 0;
1682
1683         if (!sid_to_gid(group, &gid))
1684                 return NT_STATUS_NO_SUCH_GROUP;
1685
1686         if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1687                 return NT_STATUS_NO_SUCH_GROUP;
1688
1689         if (num_uids == 0)
1690                 return NT_STATUS_OK;
1691
1692         *pp_member_rids = talloc_zero_array(mem_ctx, uint32_t, num_uids);
1693
1694         for (i=0; i<num_uids; i++) {
1695                 struct dom_sid sid;
1696
1697                 uid_to_sid(&sid, uids[i]);
1698
1699                 if (!sid_check_is_in_our_sam(&sid)) {
1700                         DEBUG(5, ("Inconsistent SAM -- group member uid not "
1701                                   "in our domain\n"));
1702                         continue;
1703                 }
1704
1705                 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1706                 *p_num_members += 1;
1707         }
1708
1709         return NT_STATUS_OK;
1710 }
1711
1712 static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1713                                                    TALLOC_CTX *mem_ctx,
1714                                                    struct samu *user,
1715                                                    struct dom_sid **pp_sids,
1716                                                    gid_t **pp_gids,
1717                                                    uint32_t *p_num_groups)
1718 {
1719         size_t i;
1720         gid_t gid;
1721         struct passwd *pw;
1722         const char *username = pdb_get_username(user);
1723
1724
1725         /* Ignore the primary group SID.  Honor the real Unix primary group.
1726            The primary group SID is only of real use to Windows clients */
1727
1728         if ( !(pw = Get_Pwnam_alloc(mem_ctx, username)) ) {
1729                 return NT_STATUS_NO_SUCH_USER;
1730         }
1731
1732         gid = pw->pw_gid;
1733
1734         TALLOC_FREE( pw );
1735
1736         if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1737                 return NT_STATUS_NO_SUCH_USER;
1738         }
1739
1740         if (*p_num_groups == 0) {
1741                 smb_panic("primary group missing");
1742         }
1743
1744         *pp_sids = talloc_array(mem_ctx, struct dom_sid, *p_num_groups);
1745
1746         if (*pp_sids == NULL) {
1747                 TALLOC_FREE(*pp_gids);
1748                 return NT_STATUS_NO_MEMORY;
1749         }
1750
1751         for (i=0; i<*p_num_groups; i++) {
1752                 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1753         }
1754
1755         return NT_STATUS_OK;
1756 }
1757
1758 /*******************************************************************
1759  Look up a rid in the SAM we're responsible for (i.e. passdb)
1760  ********************************************************************/
1761
1762 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid,
1763                                   const char **name,
1764                                   enum lsa_SidType *psid_name_use,
1765                                   uid_t *uid, gid_t *gid)
1766 {
1767         struct samu *sam_account = NULL;
1768         GROUP_MAP *map = NULL;
1769         bool ret;
1770         struct dom_sid sid;
1771
1772         *psid_name_use = SID_NAME_UNKNOWN;
1773
1774         DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1775                  (unsigned int)rid));
1776
1777         sid_compose(&sid, get_global_sam_sid(), rid);
1778
1779         /* see if the passdb can help us with the name of the user */
1780
1781         if ( !(sam_account = samu_new( NULL )) ) {
1782                 return False;
1783         }
1784
1785         map = talloc_zero(mem_ctx, GROUP_MAP);
1786         if (!map) {
1787                 return false;
1788         }
1789
1790         /* BEING ROOT BLOCK */
1791         become_root();
1792         ret = pdb_getsampwsid(sam_account, &sid);
1793         if (!ret) {
1794                 TALLOC_FREE(sam_account);
1795                 ret = pdb_getgrsid(map, sid);
1796         }
1797         unbecome_root();
1798         /* END BECOME_ROOT BLOCK */
1799
1800         if (sam_account || !ret) {
1801                 TALLOC_FREE(map);
1802         }
1803
1804         if (sam_account) {
1805                 struct passwd *pw;
1806
1807                 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1808                 if (!*name) {
1809                         TALLOC_FREE(sam_account);
1810                         return False;
1811                 }
1812
1813                 *psid_name_use = SID_NAME_USER;
1814
1815                 TALLOC_FREE(sam_account);
1816
1817                 if (uid == NULL) {
1818                         return True;
1819                 }
1820
1821                 pw = Get_Pwnam_alloc(talloc_tos(), *name);
1822                 if (pw == NULL) {
1823                         return False;
1824                 }
1825                 *uid = pw->pw_uid;
1826                 TALLOC_FREE(pw);
1827                 return True;
1828
1829         } else if (map && (map->gid != (gid_t)-1)) {
1830
1831                 /* do not resolve SIDs to a name unless there is a valid
1832                    gid associated with it */
1833
1834                 *name = talloc_steal(mem_ctx, map->nt_name);
1835                 *psid_name_use = map->sid_name_use;
1836
1837                 if (gid) {
1838                         *gid = map->gid;
1839                 }
1840
1841                 TALLOC_FREE(map);
1842                 return True;
1843         }
1844
1845         TALLOC_FREE(map);
1846
1847         /* Windows will always map RID 513 to something.  On a non-domain
1848            controller, this gets mapped to SERVER\None. */
1849
1850         if (uid || gid) {
1851                 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1852                 return False;
1853         }
1854
1855         if ( rid == DOMAIN_RID_USERS ) {
1856                 *name = talloc_strdup(mem_ctx, "None" );
1857                 *psid_name_use = SID_NAME_DOM_GRP;
1858
1859                 return True;
1860         }
1861
1862         return False;
1863 }
1864
1865 static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1866                                         const struct dom_sid *domain_sid,
1867                                         int num_rids,
1868                                         uint32_t *rids,
1869                                         const char **names,
1870                                         enum lsa_SidType *attrs)
1871 {
1872         int i;
1873         NTSTATUS result;
1874         bool have_mapped = False;
1875         bool have_unmapped = False;
1876
1877         if (sid_check_is_builtin(domain_sid)) {
1878
1879                 for (i=0; i<num_rids; i++) {
1880                         const char *name;
1881
1882                         if (lookup_builtin_rid(names, rids[i], &name)) {
1883                                 attrs[i] = SID_NAME_ALIAS;
1884                                 names[i] = name;
1885                                 DEBUG(5,("lookup_rids: %s:%d\n",
1886                                          names[i], attrs[i]));
1887                                 have_mapped = True;
1888                         } else {
1889                                 have_unmapped = True;
1890                                 attrs[i] = SID_NAME_UNKNOWN;
1891                         }
1892                 }
1893                 goto done;
1894         }
1895
1896         /* Should not happen, but better check once too many */
1897         if (!sid_check_is_our_sam(domain_sid)) {
1898                 return NT_STATUS_INVALID_HANDLE;
1899         }
1900
1901         for (i = 0; i < num_rids; i++) {
1902                 const char *name;
1903
1904                 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1905                                           NULL, NULL)) {
1906                         if (name == NULL) {
1907                                 return NT_STATUS_NO_MEMORY;
1908                         }
1909                         names[i] = name;
1910                         DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1911                         have_mapped = True;
1912                 } else {
1913                         have_unmapped = True;
1914                         attrs[i] = SID_NAME_UNKNOWN;
1915                 }
1916         }
1917
1918  done:
1919
1920         result = NT_STATUS_NONE_MAPPED;
1921
1922         if (have_mapped)
1923                 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1924
1925         return result;
1926 }
1927
1928 static int pdb_search_destructor(struct pdb_search *search)
1929 {
1930         if ((!search->search_ended) && (search->search_end != NULL)) {
1931                 search->search_end(search);
1932         }
1933         return 0;
1934 }
1935
1936 struct pdb_search *pdb_search_init(TALLOC_CTX *mem_ctx,
1937                                    enum pdb_search_type type)
1938 {
1939         struct pdb_search *result;
1940
1941         result = talloc(mem_ctx, struct pdb_search);
1942         if (result == NULL) {
1943                 DEBUG(0, ("talloc failed\n"));
1944                 return NULL;
1945         }
1946
1947         result->type = type;
1948         result->cache = NULL;
1949         result->num_entries = 0;
1950         result->cache_size = 0;
1951         result->search_ended = False;
1952         result->search_end = NULL;
1953
1954         /* Segfault appropriately if not initialized */
1955         result->next_entry = NULL;
1956         result->search_end = NULL;
1957
1958         talloc_set_destructor(result, pdb_search_destructor);
1959
1960         return result;
1961 }
1962
1963 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32_t rid,
1964                               uint16_t acct_flags,
1965                               const char *account_name,
1966                               const char *fullname,
1967                               const char *description,
1968                               struct samr_displayentry *entry)
1969 {
1970         entry->rid = rid;
1971         entry->acct_flags = acct_flags;
1972
1973         if (account_name != NULL)
1974                 entry->account_name = talloc_strdup(mem_ctx, account_name);
1975         else
1976                 entry->account_name = "";
1977
1978         if (fullname != NULL)
1979                 entry->fullname = talloc_strdup(mem_ctx, fullname);
1980         else
1981                 entry->fullname = "";
1982
1983         if (description != NULL)
1984                 entry->description = talloc_strdup(mem_ctx, description);
1985         else
1986                 entry->description = "";
1987 }
1988
1989 struct group_search {
1990         GROUP_MAP **groups;
1991         size_t num_groups, current_group;
1992 };
1993
1994 static bool next_entry_groups(struct pdb_search *s,
1995                               struct samr_displayentry *entry)
1996 {
1997         struct group_search *state = (struct group_search *)s->private_data;
1998         uint32_t rid;
1999         GROUP_MAP *map;
2000
2001         if (state->current_group == state->num_groups)
2002                 return False;
2003
2004         map = state->groups[state->current_group];
2005
2006         sid_peek_rid(&map->sid, &rid);
2007
2008         fill_displayentry(s, rid, 0, map->nt_name, NULL, map->comment, entry);
2009
2010         state->current_group += 1;
2011         return True;
2012 }
2013
2014 static void search_end_groups(struct pdb_search *search)
2015 {
2016         struct group_search *state =
2017                 (struct group_search *)search->private_data;
2018         TALLOC_FREE(state->groups);
2019 }
2020
2021 static bool pdb_search_grouptype(struct pdb_methods *methods,
2022                                  struct pdb_search *search,
2023                                  const struct dom_sid *sid, enum lsa_SidType type)
2024 {
2025         struct group_search *state;
2026
2027         state = talloc_zero(search, struct group_search);
2028         if (state == NULL) {
2029                 DEBUG(0, ("talloc failed\n"));
2030                 return False;
2031         }
2032
2033         if (!NT_STATUS_IS_OK(methods->enum_group_mapping(methods, sid, type,
2034                                                          &state->groups, &state->num_groups,
2035                                                          True))) {
2036                 DEBUG(0, ("Could not enum groups\n"));
2037                 return False;
2038         }
2039
2040         state->current_group = 0;
2041         search->private_data = state;
2042         search->next_entry = next_entry_groups;
2043         search->search_end = search_end_groups;
2044         return True;
2045 }
2046
2047 static bool pdb_default_search_groups(struct pdb_methods *methods,
2048                                       struct pdb_search *search)
2049 {
2050         return pdb_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
2051 }
2052
2053 static bool pdb_default_search_aliases(struct pdb_methods *methods,
2054                                        struct pdb_search *search,
2055                                        const struct dom_sid *sid)
2056 {
2057
2058         return pdb_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
2059 }
2060
2061 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
2062                                                      uint32_t idx)
2063 {
2064         if (idx < search->num_entries)
2065                 return &search->cache[idx];
2066
2067         if (search->search_ended)
2068                 return NULL;
2069
2070         while (idx >= search->num_entries) {
2071                 struct samr_displayentry entry;
2072
2073                 if (!search->next_entry(search, &entry)) {
2074                         search->search_end(search);
2075                         search->search_ended = True;
2076                         break;
2077                 }
2078
2079                 ADD_TO_LARGE_ARRAY(search, struct samr_displayentry,
2080                                    entry, &search->cache, &search->num_entries,
2081                                    &search->cache_size);
2082         }
2083
2084         return (search->num_entries > idx) ? &search->cache[idx] : NULL;
2085 }
2086
2087 struct pdb_search *pdb_search_users(TALLOC_CTX *mem_ctx, uint32_t acct_flags)
2088 {
2089         struct pdb_methods *pdb = pdb_get_methods();
2090         struct pdb_search *result;
2091
2092         result = pdb_search_init(mem_ctx, PDB_USER_SEARCH);
2093         if (result == NULL) {
2094                 return NULL;
2095         }
2096
2097         if (!pdb->search_users(pdb, result, acct_flags)) {
2098                 TALLOC_FREE(result);
2099                 return NULL;
2100         }
2101         return result;
2102 }
2103
2104 struct pdb_search *pdb_search_groups(TALLOC_CTX *mem_ctx)
2105 {
2106         struct pdb_methods *pdb = pdb_get_methods();
2107         struct pdb_search *result;
2108
2109         result = pdb_search_init(mem_ctx, PDB_GROUP_SEARCH);
2110         if (result == NULL) {
2111                  return NULL;
2112         }
2113
2114         if (!pdb->search_groups(pdb, result)) {
2115                 TALLOC_FREE(result);
2116                 return NULL;
2117         }
2118         return result;
2119 }
2120
2121 struct pdb_search *pdb_search_aliases(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
2122 {
2123         struct pdb_methods *pdb = pdb_get_methods();
2124         struct pdb_search *result;
2125
2126         if (pdb == NULL) return NULL;
2127
2128         result = pdb_search_init(mem_ctx, PDB_ALIAS_SEARCH);
2129         if (result == NULL) {
2130                 return NULL;
2131         }
2132
2133         if (!pdb->search_aliases(pdb, result, sid)) {
2134                 TALLOC_FREE(result);
2135                 return NULL;
2136         }
2137         return result;
2138 }
2139
2140 uint32_t pdb_search_entries(struct pdb_search *search,
2141                           uint32_t start_idx, uint32_t max_entries,
2142                           struct samr_displayentry **result)
2143 {
2144         struct samr_displayentry *end_entry;
2145         uint32_t end_idx = start_idx+max_entries-1;
2146
2147         /* The first entry needs to be searched after the last. Otherwise the
2148          * first entry might have moved due to a realloc during the search for
2149          * the last entry. */
2150
2151         end_entry = pdb_search_getentry(search, end_idx);
2152         *result = pdb_search_getentry(search, start_idx);
2153
2154         if (end_entry != NULL)
2155                 return max_entries;
2156
2157         if (start_idx >= search->num_entries)
2158                 return 0;
2159
2160         return search->num_entries - start_idx;
2161 }
2162
2163 /*******************************************************************
2164  trustdom methods
2165  *******************************************************************/
2166
2167 bool pdb_get_trusteddom_pw(const char *domain, char** pwd, struct dom_sid *sid,
2168                            time_t *pass_last_set_time)
2169 {
2170         struct pdb_methods *pdb = pdb_get_methods();
2171         return pdb->get_trusteddom_pw(pdb, domain, pwd, sid,
2172                         pass_last_set_time);
2173 }
2174
2175 NTSTATUS pdb_get_trusteddom_creds(const char *domain, TALLOC_CTX *mem_ctx,
2176                                   struct cli_credentials **creds)
2177 {
2178         struct pdb_methods *pdb = pdb_get_methods();
2179         return pdb->get_trusteddom_creds(pdb, domain, mem_ctx, creds);
2180 }
2181
2182 bool pdb_set_trusteddom_pw(const char* domain, const char* pwd,
2183                            const struct dom_sid *sid)
2184 {
2185         struct pdb_methods *pdb = pdb_get_methods();
2186         return pdb->set_trusteddom_pw(pdb, domain, pwd, sid);
2187 }
2188
2189 bool pdb_del_trusteddom_pw(const char *domain)
2190 {
2191         struct pdb_methods *pdb = pdb_get_methods();
2192         return pdb->del_trusteddom_pw(pdb, domain);
2193 }
2194
2195 NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2196                               struct trustdom_info ***domains)
2197 {
2198         struct pdb_methods *pdb = pdb_get_methods();
2199         return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains);
2200 }
2201
2202 /*******************************************************************
2203  the defaults for trustdom methods:
2204  these simply call the original passdb/secrets.c actions,
2205  to be replaced by pdb_ldap.
2206  *******************************************************************/
2207
2208 static bool pdb_default_get_trusteddom_pw(struct pdb_methods *methods,
2209                                           const char *domain,
2210                                           char** pwd,
2211                                           struct dom_sid *sid,
2212                                           time_t *pass_last_set_time)
2213 {
2214         return secrets_fetch_trusted_domain_password(domain, pwd,
2215                                 sid, pass_last_set_time);
2216
2217 }
2218
2219 static NTSTATUS pdb_default_get_trusteddom_creds(struct pdb_methods *methods,
2220                                                  const char *domain,
2221                                                  TALLOC_CTX *mem_ctx,
2222                                                  struct cli_credentials **creds)
2223 {
2224         *creds = NULL;
2225         return NT_STATUS_NOT_IMPLEMENTED;
2226 }
2227
2228 static bool pdb_default_set_trusteddom_pw(struct pdb_methods *methods,
2229                                           const char* domain,
2230                                           const char* pwd,
2231                                           const struct dom_sid *sid)
2232 {
2233         return secrets_store_trusted_domain_password(domain, pwd, sid);
2234 }
2235
2236 static bool pdb_default_del_trusteddom_pw(struct pdb_methods *methods,
2237                                           const char *domain)
2238 {
2239         return trusted_domain_password_delete(domain);
2240 }
2241
2242 static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods,
2243                                              TALLOC_CTX *mem_ctx,
2244                                              uint32_t *num_domains,
2245                                              struct trustdom_info ***domains)
2246 {
2247         return secrets_trusted_domains(mem_ctx, num_domains, domains);
2248 }
2249
2250 /*******************************************************************
2251  trusted_domain methods
2252  *******************************************************************/
2253
2254 NTSTATUS pdb_get_trusted_domain(TALLOC_CTX *mem_ctx, const char *domain,
2255                                 struct pdb_trusted_domain **td)
2256 {
2257         struct pdb_methods *pdb = pdb_get_methods();
2258         return pdb->get_trusted_domain(pdb, mem_ctx, domain, td);
2259 }
2260
2261 NTSTATUS pdb_get_trusted_domain_by_sid(TALLOC_CTX *mem_ctx, struct dom_sid *sid,
2262                                 struct pdb_trusted_domain **td)
2263 {
2264         struct pdb_methods *pdb = pdb_get_methods();
2265         return pdb->get_trusted_domain_by_sid(pdb, mem_ctx, sid, td);
2266 }
2267
2268 NTSTATUS pdb_set_trusted_domain(const char* domain,
2269                                 const struct pdb_trusted_domain *td)
2270 {
2271         struct pdb_methods *pdb = pdb_get_methods();
2272         return pdb->set_trusted_domain(pdb, domain, td);
2273 }
2274
2275 NTSTATUS pdb_del_trusted_domain(const char *domain)
2276 {
2277         struct pdb_methods *pdb = pdb_get_methods();
2278         return pdb->del_trusted_domain(pdb, domain);
2279 }
2280
2281 NTSTATUS pdb_enum_trusted_domains(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2282                                   struct pdb_trusted_domain ***domains)
2283 {
2284         struct pdb_methods *pdb = pdb_get_methods();
2285         return pdb->enum_trusted_domains(pdb, mem_ctx, num_domains, domains);
2286 }
2287
2288 static NTSTATUS pdb_default_get_trusted_domain(struct pdb_methods *methods,
2289                                                TALLOC_CTX *mem_ctx,
2290                                                const char *domain,
2291                                                struct pdb_trusted_domain **td)
2292 {
2293         struct trustAuthInOutBlob taiob;
2294         struct AuthenticationInformation aia;
2295         struct pdb_trusted_domain *tdom;
2296         enum ndr_err_code ndr_err;
2297         time_t last_set_time;
2298         char *pwd;
2299         bool ok;
2300
2301         tdom = talloc(mem_ctx, struct pdb_trusted_domain);
2302         if (!tdom) {
2303                 return NT_STATUS_NO_MEMORY;
2304         }
2305
2306         tdom->domain_name = talloc_strdup(tdom, domain);
2307         tdom->netbios_name = talloc_strdup(tdom, domain);
2308         if (!tdom->domain_name || !tdom->netbios_name) {
2309                 talloc_free(tdom);
2310                 return NT_STATUS_NO_MEMORY;
2311         }
2312
2313         tdom->trust_auth_incoming = data_blob_null;
2314
2315         ok = pdb_get_trusteddom_pw(domain, &pwd, &tdom->security_identifier,
2316                                    &last_set_time);
2317         if (!ok) {
2318                 talloc_free(tdom);
2319                 return NT_STATUS_UNSUCCESSFUL;
2320         }
2321
2322         ZERO_STRUCT(taiob);
2323         ZERO_STRUCT(aia);
2324         taiob.count = 1;
2325         taiob.current.count = 1;
2326         taiob.current.array = &aia;
2327         unix_to_nt_time(&aia.LastUpdateTime, last_set_time);
2328
2329         aia.AuthType = TRUST_AUTH_TYPE_CLEAR;
2330         aia.AuthInfo.clear.size = strlen(pwd);
2331         aia.AuthInfo.clear.password = (uint8_t *)talloc_memdup(tdom, pwd,
2332                                                                aia.AuthInfo.clear.size);
2333         SAFE_FREE(pwd);
2334         if (aia.AuthInfo.clear.password == NULL) {
2335                 talloc_free(tdom);
2336                 return NT_STATUS_NO_MEMORY;
2337         }
2338
2339         taiob.previous.count = 0;
2340         taiob.previous.array = NULL;
2341
2342         ndr_err = ndr_push_struct_blob(&tdom->trust_auth_outgoing,
2343                                         tdom, &taiob,
2344                         (ndr_push_flags_fn_t)ndr_push_trustAuthInOutBlob);
2345         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2346                 talloc_free(tdom);
2347                 return NT_STATUS_UNSUCCESSFUL;
2348         }
2349
2350         tdom->trust_direction = LSA_TRUST_DIRECTION_OUTBOUND;
2351         tdom->trust_type = LSA_TRUST_TYPE_DOWNLEVEL;
2352         tdom->trust_attributes = 0;
2353         tdom->trust_forest_trust_info = data_blob_null;
2354
2355         *td = tdom;
2356         return NT_STATUS_OK;
2357 }
2358
2359 static NTSTATUS pdb_default_get_trusted_domain_by_sid(struct pdb_methods *methods,
2360                                                       TALLOC_CTX *mem_ctx,
2361                                                       struct dom_sid *sid,
2362                                                       struct pdb_trusted_domain **td)
2363 {
2364         return NT_STATUS_NOT_IMPLEMENTED;
2365 }
2366
2367 #define IS_NULL_DATA_BLOB(d) ((d).data == NULL && (d).length == 0)
2368
2369 static NTSTATUS pdb_default_set_trusted_domain(struct pdb_methods *methods,
2370                                                const char* domain,
2371                                                const struct pdb_trusted_domain *td)
2372 {
2373         struct trustAuthInOutBlob taiob;
2374         struct AuthenticationInformation *aia;
2375         enum ndr_err_code ndr_err;
2376         char *pwd;
2377         bool ok;
2378
2379         if (td->trust_attributes != 0 ||
2380             td->trust_type != LSA_TRUST_TYPE_DOWNLEVEL ||
2381             td->trust_direction != LSA_TRUST_DIRECTION_OUTBOUND ||
2382             !IS_NULL_DATA_BLOB(td->trust_auth_incoming) ||
2383             !IS_NULL_DATA_BLOB(td->trust_forest_trust_info)) {
2384             return NT_STATUS_NOT_IMPLEMENTED;
2385         }
2386
2387         ZERO_STRUCT(taiob);
2388         ndr_err = ndr_pull_struct_blob(&td->trust_auth_outgoing, talloc_tos(),
2389                               &taiob,
2390                               (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2391         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2392                 return NT_STATUS_UNSUCCESSFUL;
2393         }
2394
2395         aia = (struct AuthenticationInformation *) taiob.current.array;
2396
2397         if (taiob.count != 1 || taiob.current.count != 1 ||
2398             taiob.previous.count != 0 ||
2399             aia->AuthType != TRUST_AUTH_TYPE_CLEAR) {
2400             return NT_STATUS_NOT_IMPLEMENTED;
2401         }
2402
2403         pwd = talloc_strndup(talloc_tos(), (char *) aia->AuthInfo.clear.password,
2404                              aia->AuthInfo.clear.size);
2405         if (!pwd) {
2406                 return NT_STATUS_NO_MEMORY;
2407         }
2408
2409         ok = pdb_set_trusteddom_pw(domain, pwd, &td->security_identifier);
2410         if (!ok) {
2411                 return NT_STATUS_UNSUCCESSFUL;
2412         }
2413
2414         return NT_STATUS_OK;
2415 }
2416
2417 static NTSTATUS pdb_default_del_trusted_domain(struct pdb_methods *methods,
2418                                                const char *domain)
2419 {
2420         return NT_STATUS_NOT_IMPLEMENTED;
2421 }
2422
2423 static NTSTATUS pdb_default_enum_trusted_domains(struct pdb_methods *methods,
2424                                                  TALLOC_CTX *mem_ctx,
2425                                                  uint32_t *num_domains,
2426                                                  struct pdb_trusted_domain ***domains)
2427 {
2428         return NT_STATUS_NOT_IMPLEMENTED;
2429 }
2430
2431 static struct pdb_domain_info *pdb_default_get_domain_info(
2432         struct pdb_methods *m, TALLOC_CTX *mem_ctx)
2433 {
2434         return NULL;
2435 }
2436
2437 /*****************************************************************
2438  UPN suffixes
2439  *****************************************************************/
2440 static NTSTATUS pdb_default_enum_upn_suffixes(struct pdb_methods *pdb,
2441                                               TALLOC_CTX *mem_ctx,
2442                                               uint32_t *num_suffixes,
2443                                               char ***suffixes)
2444 {
2445         return NT_STATUS_NOT_IMPLEMENTED;
2446 }
2447
2448 static NTSTATUS pdb_default_set_upn_suffixes(struct pdb_methods *pdb,
2449                                              uint32_t num_suffixes,
2450                                              const char **suffixes)
2451 {
2452         return NT_STATUS_NOT_IMPLEMENTED;
2453 }
2454
2455 NTSTATUS pdb_enum_upn_suffixes(TALLOC_CTX *mem_ctx,
2456                                uint32_t *num_suffixes,
2457                                char ***suffixes)
2458 {
2459         struct pdb_methods *pdb = pdb_get_methods();
2460         return pdb->enum_upn_suffixes(pdb, mem_ctx, num_suffixes, suffixes);
2461 }
2462
2463 NTSTATUS pdb_set_upn_suffixes(uint32_t num_suffixes,
2464                               const char **suffixes)
2465 {
2466         struct pdb_methods *pdb = pdb_get_methods();
2467         return pdb->set_upn_suffixes(pdb, num_suffixes, suffixes);
2468 }
2469
2470 /*******************************************************************
2471  idmap control methods
2472  *******************************************************************/
2473 static bool pdb_default_is_responsible_for_our_sam(
2474                                         struct pdb_methods *methods)
2475 {
2476         return true;
2477 }
2478
2479 static bool pdb_default_is_responsible_for_builtin(
2480                                         struct pdb_methods *methods)
2481 {
2482         return true;
2483 }
2484
2485 static bool pdb_default_is_responsible_for_wellknown(
2486                                         struct pdb_methods *methods)
2487 {
2488         return false;
2489 }
2490
2491 static bool pdb_default_is_responsible_for_unix_users(
2492                                         struct pdb_methods *methods)
2493 {
2494         return true;
2495 }
2496
2497 static bool pdb_default_is_responsible_for_unix_groups(
2498                                         struct pdb_methods *methods)
2499 {
2500         return true;
2501 }
2502
2503 static bool pdb_default_is_responsible_for_everything_else(
2504                                         struct pdb_methods *methods)
2505 {
2506         return false;
2507 }
2508
2509 bool pdb_is_responsible_for_our_sam(void)
2510 {
2511         struct pdb_methods *pdb = pdb_get_methods();
2512         return pdb->is_responsible_for_our_sam(pdb);
2513 }
2514
2515 bool pdb_is_responsible_for_builtin(void)
2516 {
2517         struct pdb_methods *pdb = pdb_get_methods();
2518         return pdb->is_responsible_for_builtin(pdb);
2519 }
2520
2521 bool pdb_is_responsible_for_wellknown(void)
2522 {
2523         struct pdb_methods *pdb = pdb_get_methods();
2524         return pdb->is_responsible_for_wellknown(pdb);
2525 }
2526
2527 bool pdb_is_responsible_for_unix_users(void)
2528 {
2529         struct pdb_methods *pdb = pdb_get_methods();
2530         return pdb->is_responsible_for_unix_users(pdb);
2531 }
2532
2533 bool pdb_is_responsible_for_unix_groups(void)
2534 {
2535         struct pdb_methods *pdb = pdb_get_methods();
2536         return pdb->is_responsible_for_unix_groups(pdb);
2537 }
2538
2539 bool pdb_is_responsible_for_everything_else(void)
2540 {
2541         struct pdb_methods *pdb = pdb_get_methods();
2542         return pdb->is_responsible_for_everything_else(pdb);
2543 }
2544
2545 /*******************************************************************
2546  secret methods
2547  *******************************************************************/
2548
2549 NTSTATUS pdb_get_secret(TALLOC_CTX *mem_ctx,
2550                         const char *secret_name,
2551                         DATA_BLOB *secret_current,
2552                         NTTIME *secret_current_lastchange,
2553                         DATA_BLOB *secret_old,
2554                         NTTIME *secret_old_lastchange,
2555                         struct security_descriptor **sd)
2556 {
2557         struct pdb_methods *pdb = pdb_get_methods();
2558         return pdb->get_secret(pdb, mem_ctx, secret_name,
2559                                secret_current, secret_current_lastchange,
2560                                secret_old, secret_old_lastchange,
2561                                sd);
2562 }
2563
2564 NTSTATUS pdb_set_secret(const char *secret_name,
2565                         DATA_BLOB *secret_current,
2566                         DATA_BLOB *secret_old,
2567                         struct security_descriptor *sd)
2568 {
2569         struct pdb_methods *pdb = pdb_get_methods();
2570         return pdb->set_secret(pdb, secret_name,
2571                                secret_current,
2572                                secret_old,
2573                                sd);
2574 }
2575
2576 NTSTATUS pdb_delete_secret(const char *secret_name)
2577 {
2578         struct pdb_methods *pdb = pdb_get_methods();
2579         return pdb->delete_secret(pdb, secret_name);
2580 }
2581
2582 static NTSTATUS pdb_default_get_secret(struct pdb_methods *methods,
2583                                        TALLOC_CTX *mem_ctx,
2584                                        const char *secret_name,
2585                                        DATA_BLOB *secret_current,
2586                                        NTTIME *secret_current_lastchange,
2587                                        DATA_BLOB *secret_old,
2588                                        NTTIME *secret_old_lastchange,
2589                                        struct security_descriptor **sd)
2590 {
2591         return lsa_secret_get(mem_ctx, secret_name,
2592                               secret_current,
2593                               secret_current_lastchange,
2594                               secret_old,
2595                               secret_old_lastchange,
2596                               sd);
2597 }
2598
2599 static NTSTATUS pdb_default_set_secret(struct pdb_methods *methods,
2600                                        const char *secret_name,
2601                                        DATA_BLOB *secret_current,
2602                                        DATA_BLOB *secret_old,
2603                                        struct security_descriptor *sd)
2604 {
2605         return lsa_secret_set(secret_name,
2606                               secret_current,
2607                               secret_old,
2608                               sd);
2609 }
2610
2611 static NTSTATUS pdb_default_delete_secret(struct pdb_methods *methods,
2612                                           const char *secret_name)
2613 {
2614         return lsa_secret_delete(secret_name);
2615 }
2616
2617 /*******************************************************************
2618  Create a pdb_methods structure and initialize it with the default
2619  operations.  In this way a passdb module can simply implement
2620  the functionality it cares about.  However, normally this is done
2621  in groups of related functions.
2622 *******************************************************************/
2623
2624 NTSTATUS make_pdb_method( struct pdb_methods **methods )
2625 {
2626         /* allocate memory for the structure as its own talloc CTX */
2627
2628         *methods = talloc_zero(NULL, struct pdb_methods);
2629         if (*methods == NULL) {
2630                 return NT_STATUS_NO_MEMORY;
2631         }
2632
2633         (*methods)->get_domain_info = pdb_default_get_domain_info;
2634         (*methods)->getsampwnam = pdb_default_getsampwnam;
2635         (*methods)->getsampwsid = pdb_default_getsampwsid;
2636         (*methods)->create_user = pdb_default_create_user;
2637         (*methods)->delete_user = pdb_default_delete_user;
2638         (*methods)->add_sam_account = pdb_default_add_sam_account;
2639         (*methods)->update_sam_account = pdb_default_update_sam_account;
2640         (*methods)->delete_sam_account = pdb_default_delete_sam_account;
2641         (*methods)->rename_sam_account = pdb_default_rename_sam_account;
2642         (*methods)->update_login_attempts = pdb_default_update_login_attempts;
2643
2644         (*methods)->getgrsid = pdb_default_getgrsid;
2645         (*methods)->getgrgid = pdb_default_getgrgid;
2646         (*methods)->getgrnam = pdb_default_getgrnam;
2647         (*methods)->create_dom_group = pdb_default_create_dom_group;
2648         (*methods)->delete_dom_group = pdb_default_delete_dom_group;
2649         (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
2650         (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
2651         (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
2652         (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
2653         (*methods)->enum_group_members = pdb_default_enum_group_members;
2654         (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
2655         (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2656         (*methods)->add_groupmem = pdb_default_add_groupmem;
2657         (*methods)->del_groupmem = pdb_default_del_groupmem;
2658         (*methods)->create_alias = pdb_default_create_alias;
2659         (*methods)->delete_alias = pdb_default_delete_alias;
2660         (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2661         (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2662         (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2663         (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2664         (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2665         (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2666         (*methods)->lookup_rids = pdb_default_lookup_rids;
2667         (*methods)->get_account_policy = pdb_default_get_account_policy;
2668         (*methods)->set_account_policy = pdb_default_set_account_policy;
2669         (*methods)->get_seq_num = pdb_default_get_seq_num;
2670         (*methods)->id_to_sid = pdb_default_id_to_sid;
2671         (*methods)->sid_to_id = pdb_default_sid_to_id;
2672
2673         (*methods)->search_groups = pdb_default_search_groups;
2674         (*methods)->search_aliases = pdb_default_search_aliases;
2675
2676         (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw;
2677         (*methods)->get_trusteddom_creds = pdb_default_get_trusteddom_creds;
2678         (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw;
2679         (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw;
2680         (*methods)->enum_trusteddoms  = pdb_default_enum_trusteddoms;
2681
2682         (*methods)->get_trusted_domain = pdb_default_get_trusted_domain;
2683         (*methods)->get_trusted_domain_by_sid = pdb_default_get_trusted_domain_by_sid;
2684         (*methods)->set_trusted_domain = pdb_default_set_trusted_domain;
2685         (*methods)->del_trusted_domain = pdb_default_del_trusted_domain;
2686         (*methods)->enum_trusted_domains = pdb_default_enum_trusted_domains;
2687
2688         (*methods)->get_secret = pdb_default_get_secret;
2689         (*methods)->set_secret = pdb_default_set_secret;
2690         (*methods)->delete_secret = pdb_default_delete_secret;
2691
2692         (*methods)->enum_upn_suffixes = pdb_default_enum_upn_suffixes;
2693         (*methods)->set_upn_suffixes  = pdb_default_set_upn_suffixes;
2694
2695         (*methods)->is_responsible_for_our_sam =
2696                                 pdb_default_is_responsible_for_our_sam;
2697         (*methods)->is_responsible_for_builtin =
2698                                 pdb_default_is_responsible_for_builtin;
2699         (*methods)->is_responsible_for_wellknown =
2700                                 pdb_default_is_responsible_for_wellknown;
2701         (*methods)->is_responsible_for_unix_users =
2702                                 pdb_default_is_responsible_for_unix_users;
2703         (*methods)->is_responsible_for_unix_groups =
2704                                 pdb_default_is_responsible_for_unix_groups;
2705         (*methods)->is_responsible_for_everything_else =
2706                                 pdb_default_is_responsible_for_everything_else;
2707
2708         return NT_STATUS_OK;
2709 }