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