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 "secrets.h"
  25 #include "../librpc/gen_ndr/samr.h"
  26 #include "memcache.h"
  27 #include "nsswitch/winbind_client.h"
  28 #include "../libcli/security/dom_sid.h"
  29
  30 #undef DBGC_CLASS
  31 #define DBGC_CLASS DBGC_PASSDB
  32
  33 static_decl_pdb;
  34
  35 static struct pdb_init_function_entry *backends = NULL;
  36
  37 static void lazy_initialize_passdb(void)
  38 {
  39         static bool initialized = False;
  40         if(initialized) {
  41                 return;
  42         }
  43         static_init_pdb;
  44         initialized = True;
  45 }
  46
  47 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32 rid,
  48                                   const char **name,
  49                                   enum lsa_SidType *psid_name_use,
  50                                   union unid_t *unix_id);
  51
  52 NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
  53 {
  54         struct pdb_init_function_entry *entry = backends;
  55
  56         if(version != PASSDB_INTERFACE_VERSION) {
  57                 DEBUG(0,("Can't register passdb backend!\n"
  58                          "You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
  59                          "while this version of samba uses version %d\n",
  60                          version,PASSDB_INTERFACE_VERSION));
  61                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
  62         }
  63
  64         if (!name || !init) {
  65                 return NT_STATUS_INVALID_PARAMETER;
  66         }
  67
  68         DEBUG(5,("Attempting to register passdb backend %s\n", name));
  69
  70         /* Check for duplicates */
  71         if (pdb_find_backend_entry(name)) {
  72                 DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
  73                 return NT_STATUS_OBJECT_NAME_COLLISION;
  74         }
  75
  76         entry = SMB_XMALLOC_P(struct pdb_init_function_entry);
  77         entry->name = smb_xstrdup(name);
  78         entry->init = init;
  79
  80         DLIST_ADD(backends, entry);
  81         DEBUG(5,("Successfully added passdb backend '%s'\n", name));
  82         return NT_STATUS_OK;
  83 }
  84
  85 struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
  86 {
  87         struct pdb_init_function_entry *entry = backends;
  88
  89         while(entry) {
  90                 if (strcmp(entry->name, name)==0) return entry;
  91                 entry = entry->next;
  92         }
  93
  94         return NULL;
  95 }
  96
  97 /*
  98  * The event context for the passdb backend. I know this is a bad hack and yet
  99  * another static variable, but our pdb API is a global thing per
 100  * definition. The first use for this is the LDAP idle function, more might be
 101  * added later.
 102  *
 103  * I don't feel too bad about this static variable, it replaces the
 104  * smb_idle_event_list that used to exist in lib/module.c.  -- VL
 105  */
 106
 107 static struct event_context *pdb_event_ctx;
 108
 109 struct event_context *pdb_get_event_context(void)
 110 {
 111         return pdb_event_ctx;
 112 }
 113
 114 /******************************************************************
 115   Make a pdb_methods from scratch
 116  *******************************************************************/
 117
 118 NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected)
 119 {
 120         char *module_name = smb_xstrdup(selected);
 121         char *module_location = NULL, *p;
 122         struct pdb_init_function_entry *entry;
 123         NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
 124
 125         lazy_initialize_passdb();
 126
 127         p = strchr(module_name, ':');
 128
 129         if (p) {
 130                 *p = 0;
 131                 module_location = p+1;
 132                 trim_char(module_location, ' ', ' ');
 133         }
 134
 135         trim_char(module_name, ' ', ' ');
 136
 137
 138         DEBUG(5,("Attempting to find a passdb backend to match %s (%s)\n", selected, module_name));
 139
 140         entry = pdb_find_backend_entry(module_name);
 141
 142         /* Try to find a module that contains this module */
 143         if (!entry) {
 144                 DEBUG(2,("No builtin backend found, trying to load plugin\n"));
 145                 if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
 146                         DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
 147                         SAFE_FREE(module_name);
 148                         return NT_STATUS_UNSUCCESSFUL;
 149                 }
 150         }
 151
 152         /* No such backend found */
 153         if(!entry) {
 154                 DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
 155                 SAFE_FREE(module_name);
 156                 return NT_STATUS_INVALID_PARAMETER;
 157         }
 158
 159         DEBUG(5,("Found pdb backend %s\n", module_name));
 160
 161         if ( !NT_STATUS_IS_OK( nt_status = entry->init(methods, module_location) ) ) {
 162                 DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n",
 163                         selected, nt_errstr(nt_status)));
 164                 SAFE_FREE(module_name);
 165                 return nt_status;
 166         }
 167
 168         SAFE_FREE(module_name);
 169
 170         DEBUG(5,("pdb backend %s has a valid init\n", selected));
 171
 172         return nt_status;
 173 }
 174
 175 /******************************************************************
 176  Return an already initialized pdb_methods structure
 177 *******************************************************************/
 178
 179 static struct pdb_methods *pdb_get_methods_reload( bool reload )
 180 {
 181         static struct pdb_methods *pdb = NULL;
 182
 183         if ( pdb && reload ) {
 184                 pdb->free_private_data( &(pdb->private_data) );
 185                 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 186                         char *msg = NULL;
 187                         if (asprintf(&msg, "pdb_get_methods_reload: "
 188                                         "failed to get pdb methods for backend %s\n",
 189                                         lp_passdb_backend()) > 0) {
 190                                 smb_panic(msg);
 191                         } else {
 192                                 smb_panic("pdb_get_methods_reload");
 193                         }
 194                 }
 195         }
 196
 197         if ( !pdb ) {
 198                 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 199                         char *msg = NULL;
 200                         if (asprintf(&msg, "pdb_get_methods_reload: "
 201                                         "failed to get pdb methods for backend %s\n",
 202                                         lp_passdb_backend()) > 0) {
 203                                 smb_panic(msg);
 204                         } else {
 205                                 smb_panic("pdb_get_methods_reload");
 206                         }
 207                 }
 208         }
 209
 210         return pdb;
 211 }
 212
 213 static struct pdb_methods *pdb_get_methods(void)
 214 {
 215         return pdb_get_methods_reload(False);
 216 }
 217
 218 struct pdb_domain_info *pdb_get_domain_info(TALLOC_CTX *mem_ctx)
 219 {
 220         struct pdb_methods *pdb = pdb_get_methods();
 221         return pdb->get_domain_info(pdb, mem_ctx);
 222 }
 223
 224 /**
 225  * @brief Check if the user account has been locked out and try to unlock it.
 226  *
 227  * If the user has been automatically locked out and a lockout duration is set,
 228  * then check if we can unlock the account and reset the bad password values.
 229  *
 230  * @param[in]  sampass  The sam user to check.
 231  *
 232  * @return              True if the function was successfull, false on an error.
 233  */
 234 static bool pdb_try_account_unlock(struct samu *sampass)
 235 {
 236         uint32_t acb_info = pdb_get_acct_ctrl(sampass);
 237
 238         if (acb_info & (ACB_NORMAL|ACB_AUTOLOCK)) {
 239                 uint32_t lockout_duration;
 240                 time_t bad_password_time;
 241                 time_t now = time(NULL);
 242                 bool ok;
 243
 244                 ok = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION,
 245                                             &lockout_duration);
 246                 if (!ok) {
 247                         DEBUG(0, ("pdb_try_account_unlock: "
 248                                   "pdb_get_account_policy failed.\n"));
 249                         return false;
 250                 }
 251
 252                 if (lockout_duration == (uint32_t) -1 ||
 253                     lockout_duration == 0) {
 254                         DEBUG(9, ("pdb_try_account_unlock: No reset duration, "
 255                                   "can't reset autolock\n"));
 256                         return false;
 257                 }
 258                 lockout_duration *= 60;
 259
 260                 bad_password_time = pdb_get_bad_password_time(sampass);
 261                 if (bad_password_time == (time_t) 0) {
 262                         DEBUG(2, ("pdb_try_account_unlock: Account %s "
 263                                   "administratively locked out "
 264                                   "with no bad password "
 265                                   "time. Leaving locked out.\n",
 266                                   pdb_get_username(sampass)));
 267                         return true;
 268                 }
 269
 270                 if ((bad_password_time +
 271                      convert_uint32_t_to_time_t(lockout_duration)) < now) {
 272                         NTSTATUS status;
 273
 274                         pdb_set_acct_ctrl(sampass, acb_info & ~ACB_AUTOLOCK,
 275                                           PDB_CHANGED);
 276                         pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
 277                         pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
 278
 279                         become_root();
 280                         status = pdb_update_sam_account(sampass);
 281                         unbecome_root();
 282                         if (!NT_STATUS_IS_OK(status)) {
 283                                 DEBUG(0, ("_samr_OpenUser: Couldn't "
 284                                           "update account %s - %s\n",
 285                                           pdb_get_username(sampass),
 286                                           nt_errstr(status)));
 287                                 return false;
 288                         }
 289                 }
 290         }
 291
 292         return true;
 293 }
 294
 295 /**
 296  * @brief Get a sam user structure by the given username.
 297  *
 298  * This functions also checks if the account has been automatically locked out
 299  * and unlocks it if a lockout duration time has been defined and the time has
 300  * elapsed.
 301  *
 302  * @param[in]  sam_acct  The sam user structure to fill.
 303  *
 304  * @param[in]  username  The username to look for.
 305  *
 306  * @return               True on success, false on error.
 307  */
 308 bool pdb_getsampwnam(struct samu *sam_acct, const char *username)
 309 {
 310         struct pdb_methods *pdb = pdb_get_methods();
 311         struct samu *for_cache;
 312         const struct dom_sid *user_sid;
 313         NTSTATUS status;
 314         bool ok;
 315
 316         status = pdb->getsampwnam(pdb, sam_acct, username);
 317         if (!NT_STATUS_IS_OK(status)) {
 318                 return false;
 319         }
 320
 321         ok = pdb_try_account_unlock(sam_acct);
 322         if (!ok) {
 323                 DEBUG(1, ("pdb_getsampwnam: Failed to unlock account %s\n",
 324                           username));
 325         }
 326
 327         for_cache = samu_new(NULL);
 328         if (for_cache == NULL) {
 329                 return False;
 330         }
 331
 332         if (!pdb_copy_sam_account(for_cache, sam_acct)) {
 333                 TALLOC_FREE(for_cache);
 334                 return False;
 335         }
 336
 337         user_sid = pdb_get_user_sid(for_cache);
 338
 339         memcache_add_talloc(NULL, PDB_GETPWSID_CACHE,
 340                             data_blob_const(user_sid, sizeof(*user_sid)),
 341                             &for_cache);
 342
 343         return True;
 344 }
 345
 346 /**********************************************************************
 347 **********************************************************************/
 348
 349 static bool guest_user_info( struct samu *user )
 350 {
 351         struct passwd *pwd;
 352         NTSTATUS result;
 353         const char *guestname = lp_guestaccount();
 354
 355         if ( !(pwd = getpwnam_alloc(talloc_autofree_context(), guestname ) ) ) {
 356                 DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
 357                         guestname));
 358                 return False;
 359         }
 360
 361         result = samu_set_unix(user, pwd );
 362
 363         TALLOC_FREE( pwd );
 364
 365         return NT_STATUS_IS_OK( result );
 366 }
 367
 368 /**
 369  * @brief Get a sam user structure by the given username.
 370  *
 371  * This functions also checks if the account has been automatically locked out
 372  * and unlocks it if a lockout duration time has been defined and the time has
 373  * elapsed.
 374  *
 375  *
 376  * @param[in]  sam_acct  The sam user structure to fill.
 377  *
 378  * @param[in]  sid       The user SDI to look up.
 379  *
 380  * @return               True on success, false on error.
 381  */
 382 bool pdb_getsampwsid(struct samu *sam_acct, const struct dom_sid *sid)
 383 {
 384         struct pdb_methods *pdb = pdb_get_methods();
 385         uint32_t rid;
 386         void *cache_data;
 387         bool ok = false;
 388
 389         /* hard code the Guest RID of 501 */
 390
 391         if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
 392                 return False;
 393
 394         if ( rid == DOMAIN_RID_GUEST ) {
 395                 DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
 396                 return guest_user_info( sam_acct );
 397         }
 398
 399         /* check the cache first */
 400
 401         cache_data = memcache_lookup_talloc(
 402                 NULL, PDB_GETPWSID_CACHE, data_blob_const(sid, sizeof(*sid)));
 403
 404         if (cache_data != NULL) {
 405                 struct samu *cache_copy = talloc_get_type_abort(
 406                         cache_data, struct samu);
 407
 408                 ok = pdb_copy_sam_account(sam_acct, cache_copy);
 409         } else {
 410                 ok = NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
 411         }
 412
 413         if (!ok) {
 414                 return false;
 415         }
 416
 417         ok = pdb_try_account_unlock(sam_acct);
 418         if (!ok) {
 419                 DEBUG(1, ("pdb_getsampwsid: Failed to unlock account %s\n",
 420                           sam_acct->username));
 421         }
 422
 423         return true;
 424 }
 425
 426 static NTSTATUS pdb_default_create_user(struct pdb_methods *methods,
 427                                         TALLOC_CTX *tmp_ctx, const char *name,
 428                                         uint32_t acb_info, uint32_t *rid)
 429 {
 430         struct samu *sam_pass;
 431         NTSTATUS status;
 432         struct passwd *pwd;
 433
 434         if ((sam_pass = samu_new(tmp_ctx)) == NULL) {
 435                 return NT_STATUS_NO_MEMORY;
 436         }
 437
 438         if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) {
 439                 char *add_script = NULL;
 440                 int add_ret;
 441                 fstring name2;
 442
 443                 if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') {
 444                         add_script = talloc_strdup(tmp_ctx,
 445                                         lp_adduser_script());
 446                 } else {
 447                         add_script = talloc_strdup(tmp_ctx,
 448                                         lp_addmachine_script());
 449                 }
 450
 451                 if (!add_script || add_script[0] == '\0') {
 452                         DEBUG(3, ("Could not find user %s and no add script "
 453                                   "defined\n", name));
 454                         return NT_STATUS_NO_SUCH_USER;
 455                 }
 456
 457                 /* lowercase the username before creating the Unix account for
 458                    compatibility with previous Samba releases */
 459                 fstrcpy( name2, name );
 460                 strlower_m( name2 );
 461                 add_script = talloc_all_string_sub(tmp_ctx,
 462                                         add_script,
 463                                         "%u",
 464                                         name2);
 465                 if (!add_script) {
 466                         return NT_STATUS_NO_MEMORY;
 467                 }
 468                 add_ret = smbrun(add_script,NULL);
 469                 DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n",
 470                                         add_script, add_ret));
 471                 if (add_ret == 0) {
 472                         smb_nscd_flush_user_cache();
 473                 }
 474
 475                 flush_pwnam_cache();
 476
 477                 pwd = Get_Pwnam_alloc(tmp_ctx, name);
 478         }
 479
 480         /* we have a valid SID coming out of this call */
 481
 482         status = samu_alloc_rid_unix( sam_pass, pwd );
 483
 484         TALLOC_FREE( pwd );
 485
 486         if (!NT_STATUS_IS_OK(status)) {
 487                 DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status)));
 488                 return status;
 489         }
 490
 491         if (!sid_peek_check_rid(get_global_sam_sid(),
 492                                 pdb_get_user_sid(sam_pass), rid)) {
 493                 DEBUG(0, ("Could not get RID of fresh user\n"));
 494                 return NT_STATUS_INTERNAL_ERROR;
 495         }
 496
 497         /* Use the username case specified in the original request */
 498
 499         pdb_set_username( sam_pass, name, PDB_SET );
 500
 501         /* Disable the account on creation, it does not have a reasonable password yet. */
 502
 503         acb_info |= ACB_DISABLED;
 504
 505         pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
 506
 507         status = pdb_add_sam_account(sam_pass);
 508
 509         TALLOC_FREE(sam_pass);
 510
 511         return status;
 512 }
 513
 514 NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32_t flags,
 515                          uint32_t *rid)
 516 {
 517         struct pdb_methods *pdb = pdb_get_methods();
 518         return pdb->create_user(pdb, mem_ctx, name, flags, rid);
 519 }
 520
 521 /****************************************************************************
 522  Delete a UNIX user on demand.
 523 ****************************************************************************/
 524
 525 static int smb_delete_user(const char *unix_user)
 526 {
 527         char *del_script = NULL;
 528         int ret;
 529
 530         /* safety check */
 531
 532         if ( strequal( unix_user, "root" ) ) {
 533                 DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n"));
 534                 return -1;
 535         }
 536
 537         del_script = talloc_strdup(talloc_tos(), lp_deluser_script());
 538         if (!del_script || !*del_script) {
 539                 return -1;
 540         }
 541         del_script = talloc_all_string_sub(talloc_tos(),
 542                                 del_script,
 543                                 "%u",
 544                                 unix_user);
 545         if (!del_script) {
 546                 return -1;
 547         }
 548         ret = smbrun(del_script,NULL);
 549         flush_pwnam_cache();
 550         if (ret == 0) {
 551                 smb_nscd_flush_user_cache();
 552         }
 553         DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
 554
 555         return ret;
 556 }
 557
 558 static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods,
 559                                         TALLOC_CTX *mem_ctx,
 560                                         struct samu *sam_acct)
 561 {
 562         NTSTATUS status;
 563         fstring username;
 564
 565         status = pdb_delete_sam_account(sam_acct);
 566         if (!NT_STATUS_IS_OK(status)) {
 567                 return status;
 568         }
 569
 570         /*
 571          * Now delete the unix side ....
 572          * note: we don't check if the delete really happened as the script is
 573          * not necessary present and maybe the sysadmin doesn't want to delete
 574          * the unix side
 575          */
 576
 577         /* always lower case the username before handing it off to
 578            external scripts */
 579
 580         fstrcpy( username, pdb_get_username(sam_acct) );
 581         strlower_m( username );
 582
 583         smb_delete_user( username );
 584
 585         return status;
 586 }
 587
 588 NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct)
 589 {
 590         struct pdb_methods *pdb = pdb_get_methods();
 591         uid_t uid = -1;
 592
 593         /* sanity check to make sure we don't delete root */
 594
 595         if ( !sid_to_uid( pdb_get_user_sid(sam_acct), &uid ) ) {
 596                 return NT_STATUS_NO_SUCH_USER;
 597         }
 598
 599         if ( uid == 0 ) {
 600                 return NT_STATUS_ACCESS_DENIED;
 601         }
 602
 603         return pdb->delete_user(pdb, mem_ctx, sam_acct);
 604 }
 605
 606 NTSTATUS pdb_add_sam_account(struct samu *sam_acct)
 607 {
 608         struct pdb_methods *pdb = pdb_get_methods();
 609         return pdb->add_sam_account(pdb, sam_acct);
 610 }
 611
 612 NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
 613 {
 614         struct pdb_methods *pdb = pdb_get_methods();
 615
 616         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 617
 618         return pdb->update_sam_account(pdb, sam_acct);
 619 }
 620
 621 NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
 622 {
 623         struct pdb_methods *pdb = pdb_get_methods();
 624
 625         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 626
 627         return pdb->delete_sam_account(pdb, sam_acct);
 628 }
 629
 630 NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
 631 {
 632         struct pdb_methods *pdb = pdb_get_methods();
 633         uid_t uid;
 634         NTSTATUS status;
 635
 636         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 637
 638         /* sanity check to make sure we don't rename root */
 639
 640         if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) {
 641                 return NT_STATUS_NO_SUCH_USER;
 642         }
 643
 644         if ( uid == 0 ) {
 645                 return NT_STATUS_ACCESS_DENIED;
 646         }
 647
 648         status = pdb->rename_sam_account(pdb, oldname, newname);
 649
 650         /* always flush the cache here just to be safe */
 651         flush_pwnam_cache();
 652
 653         return status;
 654 }
 655
 656 NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, bool success)
 657 {
 658         struct pdb_methods *pdb = pdb_get_methods();
 659         return pdb->update_login_attempts(pdb, sam_acct, success);
 660 }
 661
 662 bool pdb_getgrsid(GROUP_MAP *map, struct dom_sid sid)
 663 {
 664         struct pdb_methods *pdb = pdb_get_methods();
 665         return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
 666 }
 667
 668 bool pdb_getgrgid(GROUP_MAP *map, gid_t gid)
 669 {
 670         struct pdb_methods *pdb = pdb_get_methods();
 671         return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
 672 }
 673
 674 bool pdb_getgrnam(GROUP_MAP *map, const char *name)
 675 {
 676         struct pdb_methods *pdb = pdb_get_methods();
 677         return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
 678 }
 679
 680 static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods,
 681                                              TALLOC_CTX *mem_ctx,
 682                                              const char *name,
 683                                              uint32_t *rid)
 684 {
 685         struct dom_sid group_sid;
 686         struct group *grp;
 687         fstring tmp;
 688
 689         grp = getgrnam(name);
 690
 691         if (grp == NULL) {
 692                 gid_t gid;
 693
 694                 if (smb_create_group(name, &gid) != 0) {
 695                         return NT_STATUS_ACCESS_DENIED;
 696                 }
 697
 698                 grp = getgrgid(gid);
 699         }
 700
 701         if (grp == NULL) {
 702                 return NT_STATUS_ACCESS_DENIED;
 703         }
 704
 705         if (pdb_capabilities() & PDB_CAP_STORE_RIDS) {
 706                 if (!pdb_new_rid(rid)) {
 707                         return NT_STATUS_ACCESS_DENIED;
 708                 }
 709         } else {
 710                 *rid = algorithmic_pdb_gid_to_group_rid( grp->gr_gid );
 711         }
 712
 713         sid_compose(&group_sid, get_global_sam_sid(), *rid);
 714
 715         return add_initial_entry(grp->gr_gid, sid_to_fstring(tmp, &group_sid),
 716                                  SID_NAME_DOM_GRP, name, NULL);
 717 }
 718
 719 NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name,
 720                               uint32_t *rid)
 721 {
 722         struct pdb_methods *pdb = pdb_get_methods();
 723         return pdb->create_dom_group(pdb, mem_ctx, name, rid);
 724 }
 725
 726 static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods,
 727                                              TALLOC_CTX *mem_ctx,
 728                                              uint32_t rid)
 729 {
 730         struct dom_sid group_sid;
 731         GROUP_MAP map;
 732         NTSTATUS status;
 733         struct group *grp;
 734         const char *grp_name;
 735
 736         /* coverity */
 737         map.gid = (gid_t) -1;
 738
 739         sid_compose(&group_sid, get_global_sam_sid(), rid);
 740
 741         if (!get_domain_group_from_sid(group_sid, &map)) {
 742                 DEBUG(10, ("Could not find group for rid %d\n", rid));
 743                 return NT_STATUS_NO_SUCH_GROUP;
 744         }
 745
 746         /* We need the group name for the smb_delete_group later on */
 747
 748         if (map.gid == (gid_t)-1) {
 749                 return NT_STATUS_NO_SUCH_GROUP;
 750         }
 751
 752         grp = getgrgid(map.gid);
 753         if (grp == NULL) {
 754                 return NT_STATUS_NO_SUCH_GROUP;
 755         }
 756
 757         /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
 758
 759         grp_name = talloc_strdup(mem_ctx, grp->gr_name);
 760         if (grp_name == NULL) {
 761                 return NT_STATUS_NO_MEMORY;
 762         }
 763
 764         status = pdb_delete_group_mapping_entry(group_sid);
 765
 766         if (!NT_STATUS_IS_OK(status)) {
 767                 return status;
 768         }
 769
 770         /* Don't check the result of smb_delete_group */
 771
 772         smb_delete_group(grp_name);
 773
 774         return NT_STATUS_OK;
 775 }
 776
 777 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32_t rid)
 778 {
 779         struct pdb_methods *pdb = pdb_get_methods();
 780         return pdb->delete_dom_group(pdb, mem_ctx, rid);
 781 }
 782
 783 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
 784 {
 785         struct pdb_methods *pdb = pdb_get_methods();
 786         return pdb->add_group_mapping_entry(pdb, map);
 787 }
 788
 789 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
 790 {
 791         struct pdb_methods *pdb = pdb_get_methods();
 792         return pdb->update_group_mapping_entry(pdb, map);
 793 }
 794
 795 NTSTATUS pdb_delete_group_mapping_entry(struct dom_sid sid)
 796 {
 797         struct pdb_methods *pdb = pdb_get_methods();
 798         return pdb->delete_group_mapping_entry(pdb, sid);
 799 }
 800
 801 bool pdb_enum_group_mapping(const struct dom_sid *sid, enum lsa_SidType sid_name_use, GROUP_MAP **pp_rmap,
 802                             size_t *p_num_entries, bool unix_only)
 803 {
 804         struct pdb_methods *pdb = pdb_get_methods();
 805         return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
 806                 pp_rmap, p_num_entries, unix_only));
 807 }
 808
 809 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
 810                                 const struct dom_sid *sid,
 811                                 uint32_t **pp_member_rids,
 812                                 size_t *p_num_members)
 813 {
 814         struct pdb_methods *pdb = pdb_get_methods();
 815         NTSTATUS result;
 816
 817         result = pdb->enum_group_members(pdb, mem_ctx,
 818                         sid, pp_member_rids, p_num_members);
 819
 820         /* special check for rid 513 */
 821
 822         if ( !NT_STATUS_IS_OK( result ) ) {
 823                 uint32_t rid;
 824
 825                 sid_peek_rid( sid, &rid );
 826
 827                 if ( rid == DOMAIN_RID_USERS ) {
 828                         *p_num_members = 0;
 829                         *pp_member_rids = NULL;
 830
 831                         return NT_STATUS_OK;
 832                 }
 833         }
 834
 835         return result;
 836 }
 837
 838 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
 839                                     struct dom_sid **pp_sids, gid_t **pp_gids,
 840                                     size_t *p_num_groups)
 841 {
 842         struct pdb_methods *pdb = pdb_get_methods();
 843         return pdb->enum_group_memberships(
 844                 pdb, mem_ctx, user,
 845                 pp_sids, pp_gids, p_num_groups);
 846 }
 847
 848 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
 849                                                    TALLOC_CTX *mem_ctx,
 850                                                    struct samu *sampass)
 851 {
 852         struct group *grp;
 853         gid_t gid;
 854
 855         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
 856             (grp = getgrgid(gid)) == NULL) {
 857                 return NT_STATUS_INVALID_PRIMARY_GROUP;
 858         }
 859
 860         if (smb_set_primary_group(grp->gr_name,
 861                                   pdb_get_username(sampass)) != 0) {
 862                 return NT_STATUS_ACCESS_DENIED;
 863         }
 864
 865         return NT_STATUS_OK;
 866 }
 867
 868 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
 869 {
 870         struct pdb_methods *pdb = pdb_get_methods();
 871         return pdb->set_unix_primary_group(pdb, mem_ctx, user);
 872 }
 873
 874 /*
 875  * Helper function to see whether a user is in a group. We can't use
 876  * user_in_group_sid here because this creates dependencies only smbd can
 877  * fulfil.
 878  */
 879
 880 static bool pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
 881                               const struct dom_sid *group_sid)
 882 {
 883         struct dom_sid *sids;
 884         gid_t *gids;
 885         size_t i, num_groups;
 886
 887         if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
 888                                                         &sids, &gids,
 889                                                         &num_groups))) {
 890                 return False;
 891         }
 892
 893         for (i=0; i<num_groups; i++) {
 894                 if (dom_sid_equal(group_sid, &sids[i])) {
 895                         return True;
 896                 }
 897         }
 898         return False;
 899 }
 900
 901 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
 902                                          TALLOC_CTX *mem_ctx,
 903                                          uint32_t group_rid,
 904                                          uint32_t member_rid)
 905 {
 906         struct dom_sid group_sid, member_sid;
 907         struct samu *account = NULL;
 908         GROUP_MAP map;
 909         struct group *grp;
 910         struct passwd *pwd;
 911         const char *group_name;
 912         uid_t uid;
 913
 914         /* coverity */
 915         map.gid = (gid_t) -1;
 916
 917         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
 918         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
 919
 920         if (!get_domain_group_from_sid(group_sid, &map) ||
 921             (map.gid == (gid_t)-1) ||
 922             ((grp = getgrgid(map.gid)) == NULL)) {
 923                 return NT_STATUS_NO_SUCH_GROUP;
 924         }
 925
 926         group_name = talloc_strdup(mem_ctx, grp->gr_name);
 927         if (group_name == NULL) {
 928                 return NT_STATUS_NO_MEMORY;
 929         }
 930
 931         if ( !(account = samu_new( NULL )) ) {
 932                 return NT_STATUS_NO_MEMORY;
 933         }
 934
 935         if (!pdb_getsampwsid(account, &member_sid) ||
 936             !sid_to_uid(&member_sid, &uid) ||
 937             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
 938                 return NT_STATUS_NO_SUCH_USER;
 939         }
 940
 941         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
 942                 return NT_STATUS_MEMBER_IN_GROUP;
 943         }
 944
 945         /*
 946          * ok, the group exist, the user exist, the user is not in the group,
 947          * we can (finally) add it to the group !
 948          */
 949
 950         smb_add_user_group(group_name, pwd->pw_name);
 951
 952         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
 953                 return NT_STATUS_ACCESS_DENIED;
 954         }
 955
 956         return NT_STATUS_OK;
 957 }
 958
 959 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
 960                           uint32_t member_rid)
 961 {
 962         struct pdb_methods *pdb = pdb_get_methods();
 963         return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
 964 }
 965
 966 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
 967                                          TALLOC_CTX *mem_ctx,
 968                                          uint32_t group_rid,
 969                                          uint32_t member_rid)
 970 {
 971         struct dom_sid group_sid, member_sid;
 972         struct samu *account = NULL;
 973         GROUP_MAP map;
 974         struct group *grp;
 975         struct passwd *pwd;
 976         const char *group_name;
 977         uid_t uid;
 978
 979         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
 980         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
 981
 982         if (!get_domain_group_from_sid(group_sid, &map) ||
 983             (map.gid == (gid_t)-1) ||
 984             ((grp = getgrgid(map.gid)) == NULL)) {
 985                 return NT_STATUS_NO_SUCH_GROUP;
 986         }
 987
 988         group_name = talloc_strdup(mem_ctx, grp->gr_name);
 989         if (group_name == NULL) {
 990                 return NT_STATUS_NO_MEMORY;
 991         }
 992
 993         if ( !(account = samu_new( NULL )) ) {
 994                 return NT_STATUS_NO_MEMORY;
 995         }
 996
 997         if (!pdb_getsampwsid(account, &member_sid) ||
 998             !sid_to_uid(&member_sid, &uid) ||
 999             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1000                 return NT_STATUS_NO_SUCH_USER;
1001         }
1002
1003         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1004                 return NT_STATUS_MEMBER_NOT_IN_GROUP;
1005         }
1006
1007         /*
1008          * ok, the group exist, the user exist, the user is in the group,
1009          * we can (finally) delete it from the group!
1010          */
1011
1012         smb_delete_user_group(group_name, pwd->pw_name);
1013
1014         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1015                 return NT_STATUS_ACCESS_DENIED;
1016         }
1017
1018         return NT_STATUS_OK;
1019 }
1020
1021 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1022                           uint32_t member_rid)
1023 {
1024         struct pdb_methods *pdb = pdb_get_methods();
1025         return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
1026 }
1027
1028 NTSTATUS pdb_create_alias(const char *name, uint32_t *rid)
1029 {
1030         struct pdb_methods *pdb = pdb_get_methods();
1031         return pdb->create_alias(pdb, name, rid);
1032 }
1033
1034 NTSTATUS pdb_delete_alias(const struct dom_sid *sid)
1035 {
1036         struct pdb_methods *pdb = pdb_get_methods();
1037         return pdb->delete_alias(pdb, sid);
1038 }
1039
1040 NTSTATUS pdb_get_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1041 {
1042         struct pdb_methods *pdb = pdb_get_methods();
1043         return pdb->get_aliasinfo(pdb, sid, info);
1044 }
1045
1046 NTSTATUS pdb_set_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1047 {
1048         struct pdb_methods *pdb = pdb_get_methods();
1049         return pdb->set_aliasinfo(pdb, sid, info);
1050 }
1051
1052 NTSTATUS pdb_add_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1053 {
1054         struct pdb_methods *pdb = pdb_get_methods();
1055         return pdb->add_aliasmem(pdb, alias, member);
1056 }
1057
1058 NTSTATUS pdb_del_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1059 {
1060         struct pdb_methods *pdb = pdb_get_methods();
1061         return pdb->del_aliasmem(pdb, alias, member);
1062 }
1063
1064 NTSTATUS pdb_enum_aliasmem(const struct dom_sid *alias, TALLOC_CTX *mem_ctx,
1065                            struct dom_sid **pp_members, size_t *p_num_members)
1066 {
1067         struct pdb_methods *pdb = pdb_get_methods();
1068         return pdb->enum_aliasmem(pdb, alias, mem_ctx, pp_members,
1069                                   p_num_members);
1070 }
1071
1072 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
1073                                     const struct dom_sid *domain_sid,
1074                                     const struct dom_sid *members, size_t num_members,
1075                                     uint32_t **pp_alias_rids,
1076                                     size_t *p_num_alias_rids)
1077 {
1078         struct pdb_methods *pdb = pdb_get_methods();
1079         return pdb->enum_alias_memberships(pdb, mem_ctx,
1080                                                        domain_sid,
1081                                                        members, num_members,
1082                                                        pp_alias_rids,
1083                                                        p_num_alias_rids);
1084 }
1085
1086 NTSTATUS pdb_lookup_rids(const struct dom_sid *domain_sid,
1087                          int num_rids,
1088                          uint32_t *rids,
1089                          const char **names,
1090                          enum lsa_SidType *attrs)
1091 {
1092         struct pdb_methods *pdb = pdb_get_methods();
1093         return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
1094 }
1095
1096 /*
1097  * NOTE: pdb_lookup_names is currently (2007-01-12) not used anywhere
1098  *       in the samba code.
1099  *       Unlike _lsa_lookup_sids and _samr_lookup_rids, which eventually
1100  *       also ask pdb_lookup_rids, thus looking up a bunch of rids at a time,
1101  *       the pdb_ calls _lsa_lookup_names and _samr_lookup_names come
1102  *       down to are pdb_getsampwnam and pdb_getgrnam instead of
1103  *       pdb_lookup_names.
1104  *       But in principle, it the call belongs to the API and might get
1105  *       used in this context some day.
1106  */
1107 #if 0
1108 NTSTATUS pdb_lookup_names(const struct dom_sid *domain_sid,
1109                           int num_names,
1110                           const char **names,
1111                           uint32_t *rids,
1112                           enum lsa_SidType *attrs)
1113 {
1114         struct pdb_methods *pdb = pdb_get_methods();
1115         return pdb->lookup_names(pdb, domain_sid, num_names, names, rids, attrs);
1116 }
1117 #endif
1118
1119 bool pdb_get_account_policy(enum pdb_policy_type type, uint32_t *value)
1120 {
1121         struct pdb_methods *pdb = pdb_get_methods();
1122         NTSTATUS status;
1123
1124         become_root();
1125         status = pdb->get_account_policy(pdb, type, value);
1126         unbecome_root();
1127
1128         return NT_STATUS_IS_OK(status);
1129 }
1130
1131 bool pdb_set_account_policy(enum pdb_policy_type type, uint32_t value)
1132 {
1133         struct pdb_methods *pdb = pdb_get_methods();
1134         NTSTATUS status;
1135
1136         become_root();
1137         status = pdb->set_account_policy(pdb, type, value);
1138         unbecome_root();
1139
1140         return NT_STATUS_IS_OK(status);
1141 }
1142
1143 bool pdb_get_seq_num(time_t *seq_num)
1144 {
1145         struct pdb_methods *pdb = pdb_get_methods();
1146         return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
1147 }
1148
1149 bool pdb_uid_to_sid(uid_t uid, struct dom_sid *sid)
1150 {
1151         struct pdb_methods *pdb = pdb_get_methods();
1152         return pdb->uid_to_sid(pdb, uid, sid);
1153 }
1154
1155 bool pdb_gid_to_sid(gid_t gid, struct dom_sid *sid)
1156 {
1157         struct pdb_methods *pdb = pdb_get_methods();
1158         return pdb->gid_to_sid(pdb, gid, sid);
1159 }
1160
1161 bool pdb_sid_to_id(const struct dom_sid *sid, union unid_t *id,
1162                    enum lsa_SidType *type)
1163 {
1164         struct pdb_methods *pdb = pdb_get_methods();
1165         return pdb->sid_to_id(pdb, sid, id, type);
1166 }
1167
1168 uint32_t pdb_capabilities(void)
1169 {
1170         struct pdb_methods *pdb = pdb_get_methods();
1171         return pdb->capabilities(pdb);
1172 }
1173
1174 /********************************************************************
1175  Allocate a new RID from the passdb backend.  Verify that it is free
1176  by calling lookup_global_sam_rid() to verify that the RID is not
1177  in use.  This handles servers that have existing users or groups
1178  with add RIDs (assigned from previous algorithmic mappings)
1179 ********************************************************************/
1180
1181 bool pdb_new_rid(uint32_t *rid)
1182 {
1183         struct pdb_methods *pdb = pdb_get_methods();
1184         const char *name = NULL;
1185         enum lsa_SidType type;
1186         uint32_t allocated_rid = 0;
1187         int i;
1188         TALLOC_CTX *ctx;
1189
1190         if ((pdb_capabilities() & PDB_CAP_STORE_RIDS) == 0) {
1191                 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1192                           "are active\n"));
1193                 return False;
1194         }
1195
1196         if (algorithmic_rid_base() != BASE_RID) {
1197                 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1198                           "without algorithmic RIDs is chosen.\n"));
1199                 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1200                              "add', set the maximum used RID\n"));
1201                 DEBUGADD(0, ("and remove the parameter\n"));
1202                 return False;
1203         }
1204
1205         if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1206                 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1207                 return False;
1208         }
1209
1210         /* Attempt to get an unused RID (max tires is 250...yes that it is
1211            and arbitrary number I pulkled out of my head).   -- jerry */
1212
1213         for ( i=0; allocated_rid==0 && i<250; i++ ) {
1214                 /* get a new RID */
1215
1216                 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1217                         return False;
1218                 }
1219
1220                 /* validate that the RID is not in use */
1221
1222                 if ( lookup_global_sam_rid( ctx, allocated_rid, &name, &type, NULL ) ) {
1223                         allocated_rid = 0;
1224                 }
1225         }
1226
1227         TALLOC_FREE( ctx );
1228
1229         if ( allocated_rid == 0 ) {
1230                 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1231                 return False;
1232         }
1233
1234         *rid = allocated_rid;
1235
1236         return True;
1237 }
1238
1239 /***************************************************************
1240   Initialize the static context (at smbd startup etc).
1241
1242   If uninitialised, context will auto-init on first use.
1243  ***************************************************************/
1244
1245 bool initialize_password_db(bool reload, struct event_context *event_ctx)
1246 {
1247         pdb_event_ctx = event_ctx;
1248         return (pdb_get_methods_reload(reload) != NULL);
1249 }
1250
1251
1252 /***************************************************************************
1253   Default implementations of some functions.
1254  ****************************************************************************/
1255
1256 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1257 {
1258         return NT_STATUS_NO_SUCH_USER;
1259 }
1260
1261 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
1262 {
1263         return NT_STATUS_NO_SUCH_USER;
1264 }
1265
1266 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1267 {
1268         return NT_STATUS_NOT_IMPLEMENTED;
1269 }
1270
1271 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1272 {
1273         return NT_STATUS_NOT_IMPLEMENTED;
1274 }
1275
1276 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1277 {
1278         return NT_STATUS_NOT_IMPLEMENTED;
1279 }
1280
1281 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1282 {
1283         return NT_STATUS_NOT_IMPLEMENTED;
1284 }
1285
1286 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, bool success)
1287 {
1288         /* Only the pdb_nds backend implements this, by
1289          * default just return ok. */
1290         return NT_STATUS_OK;
1291 }
1292
1293 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t *value)
1294 {
1295         return account_policy_get(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1296 }
1297
1298 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t value)
1299 {
1300         return account_policy_set(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1301 }
1302
1303 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1304 {
1305         *seq_num = time(NULL);
1306         return NT_STATUS_OK;
1307 }
1308
1309 static bool pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid,
1310                                    struct dom_sid *sid)
1311 {
1312         struct samu *sampw = NULL;
1313         struct passwd *unix_pw;
1314         bool ret;
1315
1316         unix_pw = sys_getpwuid( uid );
1317
1318         if ( !unix_pw ) {
1319                 DEBUG(4,("pdb_default_uid_to_sid: host has no idea of uid "
1320                          "%lu\n", (unsigned long)uid));
1321                 return False;
1322         }
1323
1324         if ( !(sampw = samu_new( NULL )) ) {
1325                 DEBUG(0,("pdb_default_uid_to_sid: samu_new() failed!\n"));
1326                 return False;
1327         }
1328
1329         become_root();
1330         ret = NT_STATUS_IS_OK(
1331                 methods->getsampwnam(methods, sampw, unix_pw->pw_name ));
1332         unbecome_root();
1333
1334         if (!ret) {
1335                 DEBUG(5, ("pdb_default_uid_to_sid: Did not find user "
1336                           "%s (%u)\n", unix_pw->pw_name, (unsigned int)uid));
1337                 TALLOC_FREE(sampw);
1338                 return False;
1339         }
1340
1341         sid_copy(sid, pdb_get_user_sid(sampw));
1342
1343         TALLOC_FREE(sampw);
1344
1345         return True;
1346 }
1347
1348 static bool pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1349                                    struct dom_sid *sid)
1350 {
1351         GROUP_MAP map;
1352
1353         if (!NT_STATUS_IS_OK(methods->getgrgid(methods, &map, gid))) {
1354                 return False;
1355         }
1356
1357         sid_copy(sid, &map.sid);
1358         return True;
1359 }
1360
1361 static bool pdb_default_sid_to_id(struct pdb_methods *methods,
1362                                   const struct dom_sid *sid,
1363                                   union unid_t *id, enum lsa_SidType *type)
1364 {
1365         TALLOC_CTX *mem_ctx;
1366         bool ret = False;
1367         const char *name;
1368         uint32_t rid;
1369
1370         mem_ctx = talloc_new(NULL);
1371
1372         if (mem_ctx == NULL) {
1373                 DEBUG(0, ("talloc_new failed\n"));
1374                 return False;
1375         }
1376
1377         if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1378                 /* Here we might have users as well as groups and aliases */
1379                 ret = lookup_global_sam_rid(mem_ctx, rid, &name, type, id);
1380                 goto done;
1381         }
1382
1383         /* check for "Unix User" */
1384
1385         if ( sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid) ) {
1386                 id->uid = rid;
1387                 *type = SID_NAME_USER;
1388                 ret = True;
1389                 goto done;
1390         }
1391
1392         /* check for "Unix Group" */
1393
1394         if ( sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid) ) {
1395                 id->gid = rid;
1396                 *type = SID_NAME_ALIAS;
1397                 ret = True;
1398                 goto done;
1399         }
1400
1401         /* BUILTIN */
1402
1403         if (sid_check_is_in_builtin(sid) ||
1404             sid_check_is_in_wellknown_domain(sid)) {
1405                 /* Here we only have aliases */
1406                 GROUP_MAP map;
1407                 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, &map, *sid))) {
1408                         DEBUG(10, ("Could not find map for sid %s\n",
1409                                    sid_string_dbg(sid)));
1410                         goto done;
1411                 }
1412                 if ((map.sid_name_use != SID_NAME_ALIAS) &&
1413                     (map.sid_name_use != SID_NAME_WKN_GRP)) {
1414                         DEBUG(10, ("Map for sid %s is a %s, expected an "
1415                                    "alias\n", sid_string_dbg(sid),
1416                                    sid_type_lookup(map.sid_name_use)));
1417                         goto done;
1418                 }
1419
1420                 id->gid = map.gid;
1421                 *type = SID_NAME_ALIAS;
1422                 ret = True;
1423                 goto done;
1424         }
1425
1426         DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n",
1427                   sid_string_dbg(sid)));
1428
1429  done:
1430
1431         TALLOC_FREE(mem_ctx);
1432         return ret;
1433 }
1434
1435 static bool get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, size_t *p_num)
1436 {
1437         struct group *grp;
1438         char **gr;
1439         struct passwd *pwd;
1440         bool winbind_env;
1441         bool ret = False;
1442
1443         *pp_uids = NULL;
1444         *p_num = 0;
1445
1446         /* We only look at our own sam, so don't care about imported stuff */
1447         winbind_env = winbind_env_set();
1448         (void)winbind_off();
1449
1450         if ((grp = getgrgid(gid)) == NULL) {
1451                 /* allow winbindd lookups, but only if they weren't already disabled */
1452                 goto done;
1453         }
1454
1455         /* Primary group members */
1456         setpwent();
1457         while ((pwd = getpwent()) != NULL) {
1458                 if (pwd->pw_gid == gid) {
1459                         if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1460                                                 pp_uids, p_num)) {
1461                                 goto done;
1462                         }
1463                 }
1464         }
1465         endpwent();
1466
1467         /* Secondary group members */
1468         for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1469                 struct passwd *pw = getpwnam(*gr);
1470
1471                 if (pw == NULL)
1472                         continue;
1473                 if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) {
1474                         goto done;
1475                 }
1476         }
1477
1478         ret = True;
1479
1480   done:
1481
1482         /* allow winbindd lookups, but only if they weren't already disabled */
1483         if (!winbind_env) {
1484                 (void)winbind_on();
1485         }
1486
1487         return ret;
1488 }
1489
1490 static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1491                                                TALLOC_CTX *mem_ctx,
1492                                                const struct dom_sid *group,
1493                                                uint32_t **pp_member_rids,
1494                                                size_t *p_num_members)
1495 {
1496         gid_t gid;
1497         uid_t *uids;
1498         size_t i, num_uids;
1499
1500         *pp_member_rids = NULL;
1501         *p_num_members = 0;
1502
1503         if (!sid_to_gid(group, &gid))
1504                 return NT_STATUS_NO_SUCH_GROUP;
1505
1506         if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1507                 return NT_STATUS_NO_SUCH_GROUP;
1508
1509         if (num_uids == 0)
1510                 return NT_STATUS_OK;
1511
1512         *pp_member_rids = TALLOC_ZERO_ARRAY(mem_ctx, uint32_t, num_uids);
1513
1514         for (i=0; i<num_uids; i++) {
1515                 struct dom_sid sid;
1516
1517                 uid_to_sid(&sid, uids[i]);
1518
1519                 if (!sid_check_is_in_our_domain(&sid)) {
1520                         DEBUG(5, ("Inconsistent SAM -- group member uid not "
1521                                   "in our domain\n"));
1522                         continue;
1523                 }
1524
1525                 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1526                 *p_num_members += 1;
1527         }
1528
1529         return NT_STATUS_OK;
1530 }
1531
1532 static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1533                                                    TALLOC_CTX *mem_ctx,
1534                                                    struct samu *user,
1535                                                    struct dom_sid **pp_sids,
1536                                                    gid_t **pp_gids,
1537                                                    size_t *p_num_groups)
1538 {
1539         size_t i;
1540         gid_t gid;
1541         struct passwd *pw;
1542         const char *username = pdb_get_username(user);
1543
1544
1545         /* Ignore the primary group SID.  Honor the real Unix primary group.
1546            The primary group SID is only of real use to Windows clients */
1547
1548         if ( !(pw = getpwnam_alloc(mem_ctx, username)) ) {
1549                 return NT_STATUS_NO_SUCH_USER;
1550         }
1551
1552         gid = pw->pw_gid;
1553
1554         TALLOC_FREE( pw );
1555
1556         if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1557                 return NT_STATUS_NO_SUCH_USER;
1558         }
1559
1560         if (*p_num_groups == 0) {
1561                 smb_panic("primary group missing");
1562         }
1563
1564         *pp_sids = TALLOC_ARRAY(mem_ctx, struct dom_sid, *p_num_groups);
1565
1566         if (*pp_sids == NULL) {
1567                 TALLOC_FREE(*pp_gids);
1568                 return NT_STATUS_NO_MEMORY;
1569         }
1570
1571         for (i=0; i<*p_num_groups; i++) {
1572                 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1573         }
1574
1575         return NT_STATUS_OK;
1576 }
1577
1578 /*******************************************************************
1579  Look up a rid in the SAM we're responsible for (i.e. passdb)
1580  ********************************************************************/
1581
1582 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid,
1583                                   const char **name,
1584                                   enum lsa_SidType *psid_name_use,
1585                                   union unid_t *unix_id)
1586 {
1587         struct samu *sam_account = NULL;
1588         GROUP_MAP map;
1589         bool ret;
1590         struct dom_sid sid;
1591
1592         *psid_name_use = SID_NAME_UNKNOWN;
1593
1594         DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1595                  (unsigned int)rid));
1596
1597         sid_compose(&sid, get_global_sam_sid(), rid);
1598
1599         /* see if the passdb can help us with the name of the user */
1600
1601         if ( !(sam_account = samu_new( NULL )) ) {
1602                 return False;
1603         }
1604
1605         /* BEING ROOT BLOCK */
1606         become_root();
1607         if (pdb_getsampwsid(sam_account, &sid)) {
1608                 struct passwd *pw;
1609
1610                 unbecome_root();                /* -----> EXIT BECOME_ROOT() */
1611                 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1612                 if (!*name) {
1613                         TALLOC_FREE(sam_account);
1614                         return False;
1615                 }
1616
1617                 *psid_name_use = SID_NAME_USER;
1618
1619                 TALLOC_FREE(sam_account);
1620
1621                 if (unix_id == NULL) {
1622                         return True;
1623                 }
1624
1625                 pw = Get_Pwnam_alloc(talloc_tos(), *name);
1626                 if (pw == NULL) {
1627                         return False;
1628                 }
1629                 unix_id->uid = pw->pw_uid;
1630                 TALLOC_FREE(pw);
1631                 return True;
1632         }
1633         TALLOC_FREE(sam_account);
1634
1635         ret = pdb_getgrsid(&map, sid);
1636         unbecome_root();
1637         /* END BECOME_ROOT BLOCK */
1638
1639         /* do not resolve SIDs to a name unless there is a valid
1640            gid associated with it */
1641
1642         if ( ret && (map.gid != (gid_t)-1) ) {
1643                 *name = talloc_strdup(mem_ctx, map.nt_name);
1644                 *psid_name_use = map.sid_name_use;
1645
1646                 if ( unix_id ) {
1647                         unix_id->gid = map.gid;
1648                 }
1649
1650                 return True;
1651         }
1652
1653         /* Windows will always map RID 513 to something.  On a non-domain
1654            controller, this gets mapped to SERVER\None. */
1655
1656         if ( unix_id ) {
1657                 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1658                 return False;
1659         }
1660
1661         if ( rid == DOMAIN_RID_USERS ) {
1662                 *name = talloc_strdup(mem_ctx, "None" );
1663                 *psid_name_use = SID_NAME_DOM_GRP;
1664
1665                 return True;
1666         }
1667
1668         return False;
1669 }
1670
1671 static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1672                                         const struct dom_sid *domain_sid,
1673                                         int num_rids,
1674                                         uint32_t *rids,
1675                                         const char **names,
1676                                         enum lsa_SidType *attrs)
1677 {
1678         int i;
1679         NTSTATUS result;
1680         bool have_mapped = False;
1681         bool have_unmapped = False;
1682
1683         if (sid_check_is_builtin(domain_sid)) {
1684
1685                 for (i=0; i<num_rids; i++) {
1686                         const char *name;
1687
1688                         if (lookup_builtin_rid(names, rids[i], &name)) {
1689                                 attrs[i] = SID_NAME_ALIAS;
1690                                 names[i] = name;
1691                                 DEBUG(5,("lookup_rids: %s:%d\n",
1692                                          names[i], attrs[i]));
1693                                 have_mapped = True;
1694                         } else {
1695                                 have_unmapped = True;
1696                                 attrs[i] = SID_NAME_UNKNOWN;
1697                         }
1698                 }
1699                 goto done;
1700         }
1701
1702         /* Should not happen, but better check once too many */
1703         if (!sid_check_is_domain(domain_sid)) {
1704                 return NT_STATUS_INVALID_HANDLE;
1705         }
1706
1707         for (i = 0; i < num_rids; i++) {
1708                 const char *name;
1709
1710                 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1711                                           NULL)) {
1712                         if (name == NULL) {
1713                                 return NT_STATUS_NO_MEMORY;
1714                         }
1715                         names[i] = name;
1716                         DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1717                         have_mapped = True;
1718                 } else {
1719                         have_unmapped = True;
1720                         attrs[i] = SID_NAME_UNKNOWN;
1721                 }
1722         }
1723
1724  done:
1725
1726         result = NT_STATUS_NONE_MAPPED;
1727
1728         if (have_mapped)
1729                 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1730
1731         return result;
1732 }
1733
1734 #if 0
1735 static NTSTATUS pdb_default_lookup_names(struct pdb_methods *methods,
1736                                          const struct dom_sid *domain_sid,
1737                                          int num_names,
1738                                          const char **names,
1739                                          uint32_t *rids,
1740                                          enum lsa_SidType *attrs)
1741 {
1742         int i;
1743         NTSTATUS result;
1744         bool have_mapped = False;
1745         bool have_unmapped = False;
1746
1747         if (sid_check_is_builtin(domain_sid)) {
1748
1749                 for (i=0; i<num_names; i++) {
1750                         uint32_t rid;
1751
1752                         if (lookup_builtin_name(names[i], &rid)) {
1753                                 attrs[i] = SID_NAME_ALIAS;
1754                                 rids[i] = rid;
1755                                 DEBUG(5,("lookup_rids: %s:%d\n",
1756                                          names[i], attrs[i]));
1757                                 have_mapped = True;
1758                         } else {
1759                                 have_unmapped = True;
1760                                 attrs[i] = SID_NAME_UNKNOWN;
1761                         }
1762                 }
1763                 goto done;
1764         }
1765
1766         /* Should not happen, but better check once too many */
1767         if (!sid_check_is_domain(domain_sid)) {
1768                 return NT_STATUS_INVALID_HANDLE;
1769         }
1770
1771         for (i = 0; i < num_names; i++) {
1772                 if (lookup_global_sam_name(names[i], 0, &rids[i], &attrs[i])) {
1773                         DEBUG(5,("lookup_names: %s-> %d:%d\n", names[i],
1774                                  rids[i], attrs[i]));
1775                         have_mapped = True;
1776                 } else {
1777                         have_unmapped = True;
1778                         attrs[i] = SID_NAME_UNKNOWN;
1779                 }
1780         }
1781
1782  done:
1783
1784         result = NT_STATUS_NONE_MAPPED;
1785
1786         if (have_mapped)
1787                 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1788
1789         return result;
1790 }
1791 #endif
1792
1793 static int pdb_search_destructor(struct pdb_search *search)
1794 {
1795         if ((!search->search_ended) && (search->search_end != NULL)) {
1796                 search->search_end(search);
1797         }
1798         return 0;
1799 }
1800
1801 struct pdb_search *pdb_search_init(TALLOC_CTX *mem_ctx,
1802                                    enum pdb_search_type type)
1803 {
1804         struct pdb_search *result;
1805
1806         result = talloc(mem_ctx, struct pdb_search);
1807         if (result == NULL) {
1808                 DEBUG(0, ("talloc failed\n"));
1809                 return NULL;
1810         }
1811
1812         result->type = type;
1813         result->cache = NULL;
1814         result->num_entries = 0;
1815         result->cache_size = 0;
1816         result->search_ended = False;
1817         result->search_end = NULL;
1818
1819         /* Segfault appropriately if not initialized */
1820         result->next_entry = NULL;
1821         result->search_end = NULL;
1822
1823         talloc_set_destructor(result, pdb_search_destructor);
1824
1825         return result;
1826 }
1827
1828 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32_t rid,
1829                               uint16_t acct_flags,
1830                               const char *account_name,
1831                               const char *fullname,
1832                               const char *description,
1833                               struct samr_displayentry *entry)
1834 {
1835         entry->rid = rid;
1836         entry->acct_flags = acct_flags;
1837
1838         if (account_name != NULL)
1839                 entry->account_name = talloc_strdup(mem_ctx, account_name);
1840         else
1841                 entry->account_name = "";
1842
1843         if (fullname != NULL)
1844                 entry->fullname = talloc_strdup(mem_ctx, fullname);
1845         else
1846                 entry->fullname = "";
1847
1848         if (description != NULL)
1849                 entry->description = talloc_strdup(mem_ctx, description);
1850         else
1851                 entry->description = "";
1852 }
1853
1854 struct group_search {
1855         GROUP_MAP *groups;
1856         size_t num_groups, current_group;
1857 };
1858
1859 static bool next_entry_groups(struct pdb_search *s,
1860                               struct samr_displayentry *entry)
1861 {
1862         struct group_search *state = (struct group_search *)s->private_data;
1863         uint32_t rid;
1864         GROUP_MAP *map = &state->groups[state->current_group];
1865
1866         if (state->current_group == state->num_groups)
1867                 return False;
1868
1869         sid_peek_rid(&map->sid, &rid);
1870
1871         fill_displayentry(s, rid, 0, map->nt_name, NULL, map->comment, entry);
1872
1873         state->current_group += 1;
1874         return True;
1875 }
1876
1877 static void search_end_groups(struct pdb_search *search)
1878 {
1879         struct group_search *state =
1880                 (struct group_search *)search->private_data;
1881         SAFE_FREE(state->groups);
1882 }
1883
1884 static bool pdb_search_grouptype(struct pdb_search *search,
1885                                  const struct dom_sid *sid, enum lsa_SidType type)
1886 {
1887         struct group_search *state;
1888
1889         state = talloc(search, struct group_search);
1890         if (state == NULL) {
1891                 DEBUG(0, ("talloc failed\n"));
1892                 return False;
1893         }
1894
1895         if (!pdb_enum_group_mapping(sid, type, &state->groups, &state->num_groups,
1896                                     True)) {
1897                 DEBUG(0, ("Could not enum groups\n"));
1898                 return False;
1899         }
1900
1901         state->current_group = 0;
1902         search->private_data = state;
1903         search->next_entry = next_entry_groups;
1904         search->search_end = search_end_groups;
1905         return True;
1906 }
1907
1908 static bool pdb_default_search_groups(struct pdb_methods *methods,
1909                                       struct pdb_search *search)
1910 {
1911         return pdb_search_grouptype(search, get_global_sam_sid(), SID_NAME_DOM_GRP);
1912 }
1913
1914 static bool pdb_default_search_aliases(struct pdb_methods *methods,
1915                                        struct pdb_search *search,
1916                                        const struct dom_sid *sid)
1917 {
1918
1919         return pdb_search_grouptype(search, sid, SID_NAME_ALIAS);
1920 }
1921
1922 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
1923                                                      uint32_t idx)
1924 {
1925         if (idx < search->num_entries)
1926                 return &search->cache[idx];
1927
1928         if (search->search_ended)
1929                 return NULL;
1930
1931         while (idx >= search->num_entries) {
1932                 struct samr_displayentry entry;
1933
1934                 if (!search->next_entry(search, &entry)) {
1935                         search->search_end(search);
1936                         search->search_ended = True;
1937                         break;
1938                 }
1939
1940                 ADD_TO_LARGE_ARRAY(search, struct samr_displayentry,
1941                                    entry, &search->cache, &search->num_entries,
1942                                    &search->cache_size);
1943         }
1944
1945         return (search->num_entries > idx) ? &search->cache[idx] : NULL;
1946 }
1947
1948 struct pdb_search *pdb_search_users(TALLOC_CTX *mem_ctx, uint32_t acct_flags)
1949 {
1950         struct pdb_methods *pdb = pdb_get_methods();
1951         struct pdb_search *result;
1952
1953         result = pdb_search_init(mem_ctx, PDB_USER_SEARCH);
1954         if (result == NULL) {
1955                 return NULL;
1956         }
1957
1958         if (!pdb->search_users(pdb, result, acct_flags)) {
1959                 TALLOC_FREE(result);
1960                 return NULL;
1961         }
1962         return result;
1963 }
1964
1965 struct pdb_search *pdb_search_groups(TALLOC_CTX *mem_ctx)
1966 {
1967         struct pdb_methods *pdb = pdb_get_methods();
1968         struct pdb_search *result;
1969
1970         result = pdb_search_init(mem_ctx, PDB_GROUP_SEARCH);
1971         if (result == NULL) {
1972                  return NULL;
1973         }
1974
1975         if (!pdb->search_groups(pdb, result)) {
1976                 TALLOC_FREE(result);
1977                 return NULL;
1978         }
1979         return result;
1980 }
1981
1982 struct pdb_search *pdb_search_aliases(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
1983 {
1984         struct pdb_methods *pdb = pdb_get_methods();
1985         struct pdb_search *result;
1986
1987         if (pdb == NULL) return NULL;
1988
1989         result = pdb_search_init(mem_ctx, PDB_ALIAS_SEARCH);
1990         if (result == NULL) {
1991                 return NULL;
1992         }
1993
1994         if (!pdb->search_aliases(pdb, result, sid)) {
1995                 TALLOC_FREE(result);
1996                 return NULL;
1997         }
1998         return result;
1999 }
2000
2001 uint32_t pdb_search_entries(struct pdb_search *search,
2002                           uint32_t start_idx, uint32_t max_entries,
2003                           struct samr_displayentry **result)
2004 {
2005         struct samr_displayentry *end_entry;
2006         uint32_t end_idx = start_idx+max_entries-1;
2007
2008         /* The first entry needs to be searched after the last. Otherwise the
2009          * first entry might have moved due to a realloc during the search for
2010          * the last entry. */
2011
2012         end_entry = pdb_search_getentry(search, end_idx);
2013         *result = pdb_search_getentry(search, start_idx);
2014
2015         if (end_entry != NULL)
2016                 return max_entries;
2017
2018         if (start_idx >= search->num_entries)
2019                 return 0;
2020
2021         return search->num_entries - start_idx;
2022 }
2023
2024 /*******************************************************************
2025  trustdom methods
2026  *******************************************************************/
2027
2028 bool pdb_get_trusteddom_pw(const char *domain, char** pwd, struct dom_sid *sid,
2029                            time_t *pass_last_set_time)
2030 {
2031         struct pdb_methods *pdb = pdb_get_methods();
2032         return pdb->get_trusteddom_pw(pdb, domain, pwd, sid,
2033                         pass_last_set_time);
2034 }
2035
2036 bool pdb_set_trusteddom_pw(const char* domain, const char* pwd,
2037                            const struct dom_sid *sid)
2038 {
2039         struct pdb_methods *pdb = pdb_get_methods();
2040         return pdb->set_trusteddom_pw(pdb, domain, pwd, sid);
2041 }
2042
2043 bool pdb_del_trusteddom_pw(const char *domain)
2044 {
2045         struct pdb_methods *pdb = pdb_get_methods();
2046         return pdb->del_trusteddom_pw(pdb, domain);
2047 }
2048
2049 NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2050                               struct trustdom_info ***domains)
2051 {
2052         struct pdb_methods *pdb = pdb_get_methods();
2053         return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains);
2054 }
2055
2056 /*******************************************************************
2057  the defaults for trustdom methods:
2058  these simply call the original passdb/secrets.c actions,
2059  to be replaced by pdb_ldap.
2060  *******************************************************************/
2061
2062 static bool pdb_default_get_trusteddom_pw(struct pdb_methods *methods,
2063                                           const char *domain,
2064                                           char** pwd,
2065                                           struct dom_sid *sid,
2066                                           time_t *pass_last_set_time)
2067 {
2068         return secrets_fetch_trusted_domain_password(domain, pwd,
2069                                 sid, pass_last_set_time);
2070
2071 }
2072
2073 static bool pdb_default_set_trusteddom_pw(struct pdb_methods *methods,
2074                                           const char* domain,
2075                                           const char* pwd,
2076                                           const struct dom_sid *sid)
2077 {
2078         return secrets_store_trusted_domain_password(domain, pwd, sid);
2079 }
2080
2081 static bool pdb_default_del_trusteddom_pw(struct pdb_methods *methods,
2082                                           const char *domain)
2083 {
2084         return trusted_domain_password_delete(domain);
2085 }
2086
2087 static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods,
2088                                              TALLOC_CTX *mem_ctx,
2089                                              uint32_t *num_domains,
2090                                              struct trustdom_info ***domains)
2091 {
2092         return secrets_trusted_domains(mem_ctx, num_domains, domains);
2093 }
2094
2095 static struct pdb_domain_info *pdb_default_get_domain_info(
2096         struct pdb_methods *m, TALLOC_CTX *mem_ctx)
2097 {
2098         return NULL;
2099 }
2100
2101 /*******************************************************************
2102  Create a pdb_methods structure and initialize it with the default
2103  operations.  In this way a passdb module can simply implement
2104  the functionality it cares about.  However, normally this is done
2105  in groups of related functions.
2106 *******************************************************************/
2107
2108 NTSTATUS make_pdb_method( struct pdb_methods **methods )
2109 {
2110         /* allocate memory for the structure as its own talloc CTX */
2111
2112         *methods = talloc_zero(talloc_autofree_context(), struct pdb_methods);
2113         if (*methods == NULL) {
2114                 return NT_STATUS_NO_MEMORY;
2115         }
2116
2117         (*methods)->get_domain_info = pdb_default_get_domain_info;
2118         (*methods)->getsampwnam = pdb_default_getsampwnam;
2119         (*methods)->getsampwsid = pdb_default_getsampwsid;
2120         (*methods)->create_user = pdb_default_create_user;
2121         (*methods)->delete_user = pdb_default_delete_user;
2122         (*methods)->add_sam_account = pdb_default_add_sam_account;
2123         (*methods)->update_sam_account = pdb_default_update_sam_account;
2124         (*methods)->delete_sam_account = pdb_default_delete_sam_account;
2125         (*methods)->rename_sam_account = pdb_default_rename_sam_account;
2126         (*methods)->update_login_attempts = pdb_default_update_login_attempts;
2127
2128         (*methods)->getgrsid = pdb_default_getgrsid;
2129         (*methods)->getgrgid = pdb_default_getgrgid;
2130         (*methods)->getgrnam = pdb_default_getgrnam;
2131         (*methods)->create_dom_group = pdb_default_create_dom_group;
2132         (*methods)->delete_dom_group = pdb_default_delete_dom_group;
2133         (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
2134         (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
2135         (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
2136         (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
2137         (*methods)->enum_group_members = pdb_default_enum_group_members;
2138         (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
2139         (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2140         (*methods)->add_groupmem = pdb_default_add_groupmem;
2141         (*methods)->del_groupmem = pdb_default_del_groupmem;
2142         (*methods)->create_alias = pdb_default_create_alias;
2143         (*methods)->delete_alias = pdb_default_delete_alias;
2144         (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2145         (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2146         (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2147         (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2148         (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2149         (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2150         (*methods)->lookup_rids = pdb_default_lookup_rids;
2151         (*methods)->get_account_policy = pdb_default_get_account_policy;
2152         (*methods)->set_account_policy = pdb_default_set_account_policy;
2153         (*methods)->get_seq_num = pdb_default_get_seq_num;
2154         (*methods)->uid_to_sid = pdb_default_uid_to_sid;
2155         (*methods)->gid_to_sid = pdb_default_gid_to_sid;
2156         (*methods)->sid_to_id = pdb_default_sid_to_id;
2157
2158         (*methods)->search_groups = pdb_default_search_groups;
2159         (*methods)->search_aliases = pdb_default_search_aliases;
2160
2161         (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw;
2162         (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw;
2163         (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw;
2164         (*methods)->enum_trusteddoms  = pdb_default_enum_trusteddoms;
2165
2166         return NT_STATUS_OK;
2167 }