source3/passdb/pdb_interface.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Password and authentication handling
   4    Copyright (C) Andrew Bartlett                        2002
   5    Copyright (C) Jelmer Vernooij                        2002
   6    Copyright (C) Simo Sorce                             2003
   7    Copyright (C) Volker Lendecke                        2006
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24
  25 #undef DBGC_CLASS
  26 #define DBGC_CLASS DBGC_PASSDB
  27
  28 /* Cache of latest SAM lookup query */
  29
  30 static struct samu *csamuser = NULL;
  31
  32 static_decl_pdb;
  33
  34 static struct pdb_init_function_entry *backends = NULL;
  35
  36 static void lazy_initialize_passdb(void)
  37 {
  38         static BOOL initialized = False;
  39         if(initialized) {
  40                 return;
  41         }
  42         static_init_pdb;
  43         initialized = True;
  44 }
  45
  46 static BOOL lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32 rid,
  47                                   const char **name,
  48                                   enum lsa_SidType *psid_name_use,
  49                                   union unid_t *unix_id);
  50
  51 NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
  52 {
  53         struct pdb_init_function_entry *entry = backends;
  54
  55         if(version != PASSDB_INTERFACE_VERSION) {
  56                 DEBUG(0,("Can't register passdb backend!\n"
  57                          "You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
  58                          "while this version of samba uses version %d\n",
  59                          version,PASSDB_INTERFACE_VERSION));
  60                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
  61         }
  62
  63         if (!name || !init) {
  64                 return NT_STATUS_INVALID_PARAMETER;
  65         }
  66
  67         DEBUG(5,("Attempting to register passdb backend %s\n", name));
  68
  69         /* Check for duplicates */
  70         if (pdb_find_backend_entry(name)) {
  71                 DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
  72                 return NT_STATUS_OBJECT_NAME_COLLISION;
  73         }
  74
  75         entry = SMB_XMALLOC_P(struct pdb_init_function_entry);
  76         entry->name = smb_xstrdup(name);
  77         entry->init = init;
  78
  79         DLIST_ADD(backends, entry);
  80         DEBUG(5,("Successfully added passdb backend '%s'\n", name));
  81         return NT_STATUS_OK;
  82 }
  83
  84 struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
  85 {
  86         struct pdb_init_function_entry *entry = backends;
  87
  88         while(entry) {
  89                 if (strcmp(entry->name, name)==0) return entry;
  90                 entry = entry->next;
  91         }
  92
  93         return NULL;
  94 }
  95
  96 /*
  97  * The event context for the passdb backend. I know this is a bad hack and yet
  98  * another static variable, but our pdb API is a global thing per
  99  * definition. The first use for this is the LDAP idle function, more might be
 100  * added later.
 101  *
 102  * I don't feel too bad about this static variable, it replaces the
 103  * smb_idle_event_list that used to exist in lib/module.c.  -- VL
 104  */
 105
 106 static struct event_context *pdb_event_ctx;
 107
 108 struct event_context *pdb_get_event_context(void)
 109 {
 110         return pdb_event_ctx;
 111 }
 112
 113 /******************************************************************
 114   Make a pdb_methods from scratch
 115  *******************************************************************/
 116
 117 NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected)
 118 {
 119         char *module_name = smb_xstrdup(selected);
 120         char *module_location = NULL, *p;
 121         struct pdb_init_function_entry *entry;
 122         NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
 123
 124         lazy_initialize_passdb();
 125
 126         p = strchr(module_name, ':');
 127
 128         if (p) {
 129                 *p = 0;
 130                 module_location = p+1;
 131                 trim_char(module_location, ' ', ' ');
 132         }
 133
 134         trim_char(module_name, ' ', ' ');
 135
 136
 137         DEBUG(5,("Attempting to find an passdb backend to match %s (%s)\n", selected, module_name));
 138
 139         entry = pdb_find_backend_entry(module_name);
 140
 141         /* Try to find a module that contains this module */
 142         if (!entry) {
 143                 DEBUG(2,("No builtin backend found, trying to load plugin\n"));
 144                 if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
 145                         DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
 146                         SAFE_FREE(module_name);
 147                         return NT_STATUS_UNSUCCESSFUL;
 148                 }
 149         }
 150
 151         /* No such backend found */
 152         if(!entry) {
 153                 DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
 154                 SAFE_FREE(module_name);
 155                 return NT_STATUS_INVALID_PARAMETER;
 156         }
 157
 158         DEBUG(5,("Found pdb backend %s\n", module_name));
 159
 160         if ( !NT_STATUS_IS_OK( nt_status = entry->init(methods, module_location) ) ) {
 161                 DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n",
 162                         selected, nt_errstr(nt_status)));
 163                 SAFE_FREE(module_name);
 164                 return nt_status;
 165         }
 166
 167         SAFE_FREE(module_name);
 168
 169         DEBUG(5,("pdb backend %s has a valid init\n", selected));
 170
 171         return nt_status;
 172 }
 173
 174 /******************************************************************
 175  Return an already initialised pdn_methods structure
 176 *******************************************************************/
 177
 178 static struct pdb_methods *pdb_get_methods_reload( BOOL reload )
 179 {
 180         static struct pdb_methods *pdb = NULL;
 181
 182         if ( pdb && reload ) {
 183                 pdb->free_private_data( &(pdb->private_data) );
 184                 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 185                         pstring msg;
 186                         slprintf(msg, sizeof(msg)-1, "pdb_get_methods_reload: failed to get pdb methods for backend %s\n",
 187                                 lp_passdb_backend() );
 188                         smb_panic(msg);
 189                 }
 190         }
 191
 192         if ( !pdb ) {
 193                 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 194                         pstring msg;
 195                         slprintf(msg, sizeof(msg)-1, "pdb_get_methods_reload: failed to get pdb methods for backend %s\n",
 196                                 lp_passdb_backend() );
 197                         smb_panic(msg);
 198                 }
 199         }
 200
 201         return pdb;
 202 }
 203
 204 static struct pdb_methods *pdb_get_methods(void)
 205 {
 206         return pdb_get_methods_reload(False);
 207 }
 208
 209 /******************************************************************
 210  Backward compatibility functions for the original passdb interface
 211 *******************************************************************/
 212
 213 BOOL pdb_setsampwent(BOOL update, uint16 acb_mask)
 214 {
 215         struct pdb_methods *pdb = pdb_get_methods();
 216         return NT_STATUS_IS_OK(pdb->setsampwent(pdb, update, acb_mask));
 217 }
 218
 219 void pdb_endsampwent(void)
 220 {
 221         struct pdb_methods *pdb = pdb_get_methods();
 222         pdb->endsampwent(pdb);
 223 }
 224
 225 BOOL pdb_getsampwent(struct samu *user)
 226 {
 227         struct pdb_methods *pdb = pdb_get_methods();
 228
 229         if ( !NT_STATUS_IS_OK(pdb->getsampwent(pdb, user) ) ) {
 230                 return False;
 231         }
 232
 233         return True;
 234 }
 235
 236 BOOL pdb_getsampwnam(struct samu *sam_acct, const char *username)
 237 {
 238         struct pdb_methods *pdb = pdb_get_methods();
 239
 240         if (!NT_STATUS_IS_OK(pdb->getsampwnam(pdb, sam_acct, username))) {
 241                 return False;
 242         }
 243
 244         if ( csamuser ) {
 245                 TALLOC_FREE(csamuser);
 246         }
 247
 248         csamuser = samu_new( NULL );
 249         if (!csamuser) {
 250                 return False;
 251         }
 252
 253         if (!pdb_copy_sam_account(csamuser, sam_acct)) {
 254                 TALLOC_FREE(csamuser);
 255                 return False;
 256         }
 257
 258         return True;
 259 }
 260
 261 /**********************************************************************
 262 **********************************************************************/
 263
 264 BOOL guest_user_info( struct samu *user )
 265 {
 266         struct passwd *pwd;
 267         NTSTATUS result;
 268         const char *guestname = lp_guestaccount();
 269
 270         if ( !(pwd = getpwnam_alloc( NULL, guestname ) ) ) {
 271                 DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
 272                         guestname));
 273                 return False;
 274         }
 275
 276         result = samu_set_unix(user, pwd );
 277
 278         TALLOC_FREE( pwd );
 279
 280         return NT_STATUS_IS_OK( result );
 281 }
 282
 283 /**********************************************************************
 284 **********************************************************************/
 285
 286 BOOL pdb_getsampwsid(struct samu *sam_acct, const DOM_SID *sid)
 287 {
 288         struct pdb_methods *pdb = pdb_get_methods();
 289         uint32 rid;
 290
 291         /* hard code the Guest RID of 501 */
 292
 293         if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
 294                 return False;
 295
 296         if ( rid == DOMAIN_USER_RID_GUEST ) {
 297                 DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
 298                 return guest_user_info( sam_acct );
 299         }
 300
 301         /* check the cache first */
 302
 303         if ( csamuser && sid_equal(sid, pdb_get_user_sid(csamuser) ) )
 304                 return pdb_copy_sam_account(sam_acct, csamuser);
 305
 306         return NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
 307 }
 308
 309 static NTSTATUS pdb_default_create_user(struct pdb_methods *methods,
 310                                         TALLOC_CTX *tmp_ctx, const char *name,
 311                                         uint32 acb_info, uint32 *rid)
 312 {
 313         struct samu *sam_pass;
 314         NTSTATUS status;
 315         struct passwd *pwd;
 316
 317         if ((sam_pass = samu_new(tmp_ctx)) == NULL) {
 318                 return NT_STATUS_NO_MEMORY;
 319         }
 320
 321         if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) {
 322                 pstring add_script;
 323                 int add_ret;
 324                 fstring name2;
 325
 326                 if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') {
 327                         pstrcpy(add_script, lp_adduser_script());
 328                 } else {
 329                         pstrcpy(add_script, lp_addmachine_script());
 330                 }
 331
 332                 if (add_script[0] == '\0') {
 333                         DEBUG(3, ("Could not find user %s and no add script "
 334                                   "defined\n", name));
 335                         return NT_STATUS_NO_SUCH_USER;
 336                 }
 337
 338                 /* lowercase the username before creating the Unix account for
 339                    compatibility with previous Samba releases */
 340                 fstrcpy( name2, name );
 341                 strlower_m( name2 );
 342                 all_string_sub(add_script, "%u", name2, sizeof(add_script));
 343                 add_ret = smbrun(add_script,NULL);
 344                 DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n",
 345                                         add_script, add_ret));
 346                 if (add_ret == 0) {
 347                         smb_nscd_flush_user_cache();
 348                 }
 349
 350 #ifdef ENABLE_BUILD_FARM_HACKS
 351                 if (add_ret != 0) {
 352                         DEBUG(1, ("Creating a faked user %s for build farm "
 353                                   "purposes\n", name));
 354                         faked_create_user(name);
 355                 }
 356 #endif
 357
 358                 flush_pwnam_cache();
 359
 360                 pwd = Get_Pwnam_alloc(tmp_ctx, name);
 361         }
 362
 363         /* we have a valid SID coming out of this call */
 364
 365         status = samu_alloc_rid_unix( sam_pass, pwd );
 366
 367         TALLOC_FREE( pwd );
 368
 369         if (!NT_STATUS_IS_OK(status)) {
 370                 DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status)));
 371                 return status;
 372         }
 373
 374         if (!sid_peek_check_rid(get_global_sam_sid(),
 375                                 pdb_get_user_sid(sam_pass), rid)) {
 376                 DEBUG(0, ("Could not get RID of fresh user\n"));
 377                 return NT_STATUS_INTERNAL_ERROR;
 378         }
 379
 380         /* Use the username case specified in the original request */
 381
 382         pdb_set_username( sam_pass, name, PDB_SET );
 383
 384         /* Disable the account on creation, it does not have a reasonable password yet. */
 385
 386         acb_info |= ACB_DISABLED;
 387
 388         pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
 389
 390         status = pdb_add_sam_account(sam_pass);
 391
 392         TALLOC_FREE(sam_pass);
 393
 394         return status;
 395 }
 396
 397 NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32 flags,
 398                          uint32 *rid)
 399 {
 400         struct pdb_methods *pdb = pdb_get_methods();
 401         return pdb->create_user(pdb, mem_ctx, name, flags, rid);
 402 }
 403
 404 /****************************************************************************
 405  Delete a UNIX user on demand.
 406 ****************************************************************************/
 407
 408 static int smb_delete_user(const char *unix_user)
 409 {
 410         pstring del_script;
 411         int ret;
 412
 413         /* safety check */
 414
 415         if ( strequal( unix_user, "root" ) ) {
 416                 DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n"));
 417                 return -1;
 418         }
 419
 420         pstrcpy(del_script, lp_deluser_script());
 421         if (! *del_script)
 422                 return -1;
 423         all_string_sub(del_script, "%u", unix_user, sizeof(del_script));
 424         ret = smbrun(del_script,NULL);
 425         flush_pwnam_cache();
 426         if (ret == 0) {
 427                 smb_nscd_flush_user_cache();
 428         }
 429         DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
 430
 431         return ret;
 432 }
 433
 434 static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods,
 435                                         TALLOC_CTX *mem_ctx,
 436                                         struct samu *sam_acct)
 437 {
 438         NTSTATUS status;
 439         fstring username;
 440
 441         status = pdb_delete_sam_account(sam_acct);
 442         if (!NT_STATUS_IS_OK(status)) {
 443                 return status;
 444         }
 445
 446         /*
 447          * Now delete the unix side ....
 448          * note: we don't check if the delete really happened as the script is
 449          * not necessary present and maybe the sysadmin doesn't want to delete
 450          * the unix side
 451          */
 452
 453         /* always lower case the username before handing it off to
 454            external scripts */
 455
 456         fstrcpy( username, pdb_get_username(sam_acct) );
 457         strlower_m( username );
 458
 459         smb_delete_user( username );
 460
 461         return status;
 462 }
 463
 464 NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct)
 465 {
 466         struct pdb_methods *pdb = pdb_get_methods();
 467         uid_t uid = -1;
 468
 469         /* sanity check to make sure we don't delete root */
 470
 471         if ( !sid_to_uid( pdb_get_user_sid(sam_acct), &uid ) ) {
 472                 return NT_STATUS_NO_SUCH_USER;
 473         }
 474
 475         if ( uid == 0 ) {
 476                 return NT_STATUS_ACCESS_DENIED;
 477         }
 478
 479         return pdb->delete_user(pdb, mem_ctx, sam_acct);
 480 }
 481
 482 NTSTATUS pdb_add_sam_account(struct samu *sam_acct)
 483 {
 484         struct pdb_methods *pdb = pdb_get_methods();
 485         return pdb->add_sam_account(pdb, sam_acct);
 486 }
 487
 488 NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
 489 {
 490         struct pdb_methods *pdb = pdb_get_methods();
 491
 492         if (csamuser != NULL) {
 493                 TALLOC_FREE(csamuser);
 494                 csamuser = NULL;
 495         }
 496
 497         return pdb->update_sam_account(pdb, sam_acct);
 498 }
 499
 500 NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
 501 {
 502         struct pdb_methods *pdb = pdb_get_methods();
 503
 504         if (csamuser != NULL) {
 505                 TALLOC_FREE(csamuser);
 506                 csamuser = NULL;
 507         }
 508
 509         return pdb->delete_sam_account(pdb, sam_acct);
 510 }
 511
 512 NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
 513 {
 514         struct pdb_methods *pdb = pdb_get_methods();
 515         uid_t uid;
 516         NTSTATUS status;
 517
 518         if (csamuser != NULL) {
 519                 TALLOC_FREE(csamuser);
 520                 csamuser = NULL;
 521         }
 522
 523         /* sanity check to make sure we don't rename root */
 524
 525         if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) {
 526                 return NT_STATUS_NO_SUCH_USER;
 527         }
 528
 529         if ( uid == 0 ) {
 530                 return NT_STATUS_ACCESS_DENIED;
 531         }
 532
 533         status = pdb->rename_sam_account(pdb, oldname, newname);
 534
 535         /* always flush the cache here just to be safe */
 536         flush_pwnam_cache();
 537
 538         return status;
 539 }
 540
 541 NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, BOOL success)
 542 {
 543         struct pdb_methods *pdb = pdb_get_methods();
 544         return pdb->update_login_attempts(pdb, sam_acct, success);
 545 }
 546
 547 BOOL pdb_getgrsid(GROUP_MAP *map, DOM_SID sid)
 548 {
 549         struct pdb_methods *pdb = pdb_get_methods();
 550         return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
 551 }
 552
 553 BOOL pdb_getgrgid(GROUP_MAP *map, gid_t gid)
 554 {
 555         struct pdb_methods *pdb = pdb_get_methods();
 556         return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
 557 }
 558
 559 BOOL pdb_getgrnam(GROUP_MAP *map, const char *name)
 560 {
 561         struct pdb_methods *pdb = pdb_get_methods();
 562         return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
 563 }
 564
 565 static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods,
 566                                              TALLOC_CTX *mem_ctx,
 567                                              const char *name,
 568                                              uint32 *rid)
 569 {
 570         DOM_SID group_sid;
 571         struct group *grp;
 572
 573         grp = getgrnam(name);
 574
 575         if (grp == NULL) {
 576                 gid_t gid;
 577
 578                 if (smb_create_group(name, &gid) != 0) {
 579                         return NT_STATUS_ACCESS_DENIED;
 580                 }
 581
 582                 grp = getgrgid(gid);
 583         }
 584
 585         if (grp == NULL) {
 586                 return NT_STATUS_ACCESS_DENIED;
 587         }
 588
 589         if (pdb_rid_algorithm()) {
 590                 *rid = algorithmic_pdb_gid_to_group_rid( grp->gr_gid );
 591         } else {
 592                 if (!pdb_new_rid(rid)) {
 593                         return NT_STATUS_ACCESS_DENIED;
 594                 }
 595         }
 596
 597         sid_compose(&group_sid, get_global_sam_sid(), *rid);
 598
 599         return add_initial_entry(grp->gr_gid, sid_string_static(&group_sid),
 600                                  SID_NAME_DOM_GRP, name, NULL);
 601 }
 602
 603 NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name,
 604                               uint32 *rid)
 605 {
 606         struct pdb_methods *pdb = pdb_get_methods();
 607         return pdb->create_dom_group(pdb, mem_ctx, name, rid);
 608 }
 609
 610 static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods,
 611                                              TALLOC_CTX *mem_ctx,
 612                                              uint32 rid)
 613 {
 614         DOM_SID group_sid;
 615         GROUP_MAP map;
 616         NTSTATUS status;
 617         struct group *grp;
 618         const char *grp_name;
 619
 620         sid_compose(&group_sid, get_global_sam_sid(), rid);
 621
 622         if (!get_domain_group_from_sid(group_sid, &map)) {
 623                 DEBUG(10, ("Could not find group for rid %d\n", rid));
 624                 return NT_STATUS_NO_SUCH_GROUP;
 625         }
 626
 627         /* We need the group name for the smb_delete_group later on */
 628
 629         if (map.gid == (gid_t)-1) {
 630                 return NT_STATUS_NO_SUCH_GROUP;
 631         }
 632
 633         grp = getgrgid(map.gid);
 634         if (grp == NULL) {
 635                 return NT_STATUS_NO_SUCH_GROUP;
 636         }
 637
 638         /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
 639
 640         grp_name = talloc_strdup(mem_ctx, grp->gr_name);
 641         if (grp_name == NULL) {
 642                 return NT_STATUS_NO_MEMORY;
 643         }
 644
 645         status = pdb_delete_group_mapping_entry(group_sid);
 646
 647         if (!NT_STATUS_IS_OK(status)) {
 648                 return status;
 649         }
 650
 651         /* Don't check the result of smb_delete_group */
 652
 653         smb_delete_group(grp_name);
 654
 655         return NT_STATUS_OK;
 656 }
 657
 658 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32 rid)
 659 {
 660         struct pdb_methods *pdb = pdb_get_methods();
 661         return pdb->delete_dom_group(pdb, mem_ctx, rid);
 662 }
 663
 664 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
 665 {
 666         struct pdb_methods *pdb = pdb_get_methods();
 667         return pdb->add_group_mapping_entry(pdb, map);
 668 }
 669
 670 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
 671 {
 672         struct pdb_methods *pdb = pdb_get_methods();
 673         return pdb->update_group_mapping_entry(pdb, map);
 674 }
 675
 676 NTSTATUS pdb_delete_group_mapping_entry(DOM_SID sid)
 677 {
 678         struct pdb_methods *pdb = pdb_get_methods();
 679         return pdb->delete_group_mapping_entry(pdb, sid);
 680 }
 681
 682 BOOL pdb_enum_group_mapping(const DOM_SID *sid, enum lsa_SidType sid_name_use, GROUP_MAP **pp_rmap,
 683                             size_t *p_num_entries, BOOL unix_only)
 684 {
 685         struct pdb_methods *pdb = pdb_get_methods();
 686         return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
 687                 pp_rmap, p_num_entries, unix_only));
 688 }
 689
 690 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
 691                                 const DOM_SID *sid,
 692                                 uint32 **pp_member_rids,
 693                                 size_t *p_num_members)
 694 {
 695         struct pdb_methods *pdb = pdb_get_methods();
 696         NTSTATUS result;
 697
 698         result = pdb->enum_group_members(pdb, mem_ctx,
 699                         sid, pp_member_rids, p_num_members);
 700
 701         /* special check for rid 513 */
 702
 703         if ( !NT_STATUS_IS_OK( result ) ) {
 704                 uint32 rid;
 705
 706                 sid_peek_rid( sid, &rid );
 707
 708                 if ( rid == DOMAIN_GROUP_RID_USERS ) {
 709                         *p_num_members = 0;
 710                         *pp_member_rids = NULL;
 711
 712                         return NT_STATUS_OK;
 713                 }
 714         }
 715
 716         return result;
 717 }
 718
 719 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
 720                                     DOM_SID **pp_sids, gid_t **pp_gids,
 721                                     size_t *p_num_groups)
 722 {
 723         struct pdb_methods *pdb = pdb_get_methods();
 724         return pdb->enum_group_memberships(
 725                 pdb, mem_ctx, user,
 726                 pp_sids, pp_gids, p_num_groups);
 727 }
 728
 729 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
 730                                                    TALLOC_CTX *mem_ctx,
 731                                                    struct samu *sampass)
 732 {
 733         struct group *grp;
 734         gid_t gid;
 735
 736         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
 737             (grp = getgrgid(gid)) == NULL) {
 738                 return NT_STATUS_INVALID_PRIMARY_GROUP;
 739         }
 740
 741         if (smb_set_primary_group(grp->gr_name,
 742                                   pdb_get_username(sampass)) != 0) {
 743                 return NT_STATUS_ACCESS_DENIED;
 744         }
 745
 746         return NT_STATUS_OK;
 747 }
 748
 749 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
 750 {
 751         struct pdb_methods *pdb = pdb_get_methods();
 752         return pdb->set_unix_primary_group(pdb, mem_ctx, user);
 753 }
 754
 755 /*
 756  * Helper function to see whether a user is in a group. We can't use
 757  * user_in_group_sid here because this creates dependencies only smbd can
 758  * fulfil.
 759  */
 760
 761 static BOOL pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
 762                               const DOM_SID *group_sid)
 763 {
 764         DOM_SID *sids;
 765         gid_t *gids;
 766         size_t i, num_groups;
 767
 768         if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
 769                                                         &sids, &gids,
 770                                                         &num_groups))) {
 771                 return False;
 772         }
 773
 774         for (i=0; i<num_groups; i++) {
 775                 if (sid_equal(group_sid, &sids[i])) {
 776                         return True;
 777                 }
 778         }
 779         return False;
 780 }
 781
 782 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
 783                                          TALLOC_CTX *mem_ctx,
 784                                          uint32 group_rid,
 785                                          uint32 member_rid)
 786 {
 787         DOM_SID group_sid, member_sid;
 788         struct samu *account = NULL;
 789         GROUP_MAP map;
 790         struct group *grp;
 791         struct passwd *pwd;
 792         const char *group_name;
 793         uid_t uid;
 794
 795         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
 796         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
 797
 798         if (!get_domain_group_from_sid(group_sid, &map) ||
 799             (map.gid == (gid_t)-1) ||
 800             ((grp = getgrgid(map.gid)) == NULL)) {
 801                 return NT_STATUS_NO_SUCH_GROUP;
 802         }
 803
 804         group_name = talloc_strdup(mem_ctx, grp->gr_name);
 805         if (group_name == NULL) {
 806                 return NT_STATUS_NO_MEMORY;
 807         }
 808
 809         if ( !(account = samu_new( NULL )) ) {
 810                 return NT_STATUS_NO_MEMORY;
 811         }
 812
 813         if (!pdb_getsampwsid(account, &member_sid) ||
 814             !sid_to_uid(&member_sid, &uid) ||
 815             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
 816                 return NT_STATUS_NO_SUCH_USER;
 817         }
 818
 819         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
 820                 return NT_STATUS_MEMBER_IN_GROUP;
 821         }
 822
 823         /*
 824          * ok, the group exist, the user exist, the user is not in the group,
 825          * we can (finally) add it to the group !
 826          */
 827
 828         smb_add_user_group(group_name, pwd->pw_name);
 829
 830         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
 831                 return NT_STATUS_ACCESS_DENIED;
 832         }
 833
 834         return NT_STATUS_OK;
 835 }
 836
 837 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32 group_rid,
 838                           uint32 member_rid)
 839 {
 840         struct pdb_methods *pdb = pdb_get_methods();
 841         return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
 842 }
 843
 844 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
 845                                          TALLOC_CTX *mem_ctx,
 846                                          uint32 group_rid,
 847                                          uint32 member_rid)
 848 {
 849         DOM_SID group_sid, member_sid;
 850         struct samu *account = NULL;
 851         GROUP_MAP map;
 852         struct group *grp;
 853         struct passwd *pwd;
 854         const char *group_name;
 855         uid_t uid;
 856
 857         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
 858         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
 859
 860         if (!get_domain_group_from_sid(group_sid, &map) ||
 861             (map.gid == (gid_t)-1) ||
 862             ((grp = getgrgid(map.gid)) == NULL)) {
 863                 return NT_STATUS_NO_SUCH_GROUP;
 864         }
 865
 866         group_name = talloc_strdup(mem_ctx, grp->gr_name);
 867         if (group_name == NULL) {
 868                 return NT_STATUS_NO_MEMORY;
 869         }
 870
 871         if ( !(account = samu_new( NULL )) ) {
 872                 return NT_STATUS_NO_MEMORY;
 873         }
 874
 875         if (!pdb_getsampwsid(account, &member_sid) ||
 876             !sid_to_uid(&member_sid, &uid) ||
 877             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
 878                 return NT_STATUS_NO_SUCH_USER;
 879         }
 880
 881         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
 882                 return NT_STATUS_MEMBER_NOT_IN_GROUP;
 883         }
 884
 885         /*
 886          * ok, the group exist, the user exist, the user is in the group,
 887          * we can (finally) delete it from the group!
 888          */
 889
 890         smb_delete_user_group(group_name, pwd->pw_name);
 891
 892         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
 893                 return NT_STATUS_ACCESS_DENIED;
 894         }
 895
 896         return NT_STATUS_OK;
 897 }
 898
 899 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32 group_rid,
 900                           uint32 member_rid)
 901 {
 902         struct pdb_methods *pdb = pdb_get_methods();
 903         return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
 904 }
 905
 906 NTSTATUS pdb_create_alias(const char *name, uint32 *rid)
 907 {
 908         struct pdb_methods *pdb = pdb_get_methods();
 909         return pdb->create_alias(pdb, name, rid);
 910 }
 911
 912 NTSTATUS pdb_delete_alias(const DOM_SID *sid)
 913 {
 914         struct pdb_methods *pdb = pdb_get_methods();
 915         return pdb->delete_alias(pdb, sid);
 916 }
 917
 918 NTSTATUS pdb_get_aliasinfo(const DOM_SID *sid, struct acct_info *info)
 919 {
 920         struct pdb_methods *pdb = pdb_get_methods();
 921         return pdb->get_aliasinfo(pdb, sid, info);
 922 }
 923
 924 NTSTATUS pdb_set_aliasinfo(const DOM_SID *sid, struct acct_info *info)
 925 {
 926         struct pdb_methods *pdb = pdb_get_methods();
 927         return pdb->set_aliasinfo(pdb, sid, info);
 928 }
 929
 930 NTSTATUS pdb_add_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 931 {
 932         struct pdb_methods *pdb = pdb_get_methods();
 933         return pdb->add_aliasmem(pdb, alias, member);
 934 }
 935
 936 NTSTATUS pdb_del_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 937 {
 938         struct pdb_methods *pdb = pdb_get_methods();
 939         return pdb->del_aliasmem(pdb, alias, member);
 940 }
 941
 942 NTSTATUS pdb_enum_aliasmem(const DOM_SID *alias,
 943                            DOM_SID **pp_members, size_t *p_num_members)
 944 {
 945         struct pdb_methods *pdb = pdb_get_methods();
 946         return pdb->enum_aliasmem(pdb, alias, pp_members, p_num_members);
 947 }
 948
 949 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
 950                                     const DOM_SID *domain_sid,
 951                                     const DOM_SID *members, size_t num_members,
 952                                     uint32 **pp_alias_rids,
 953                                     size_t *p_num_alias_rids)
 954 {
 955         struct pdb_methods *pdb = pdb_get_methods();
 956         return pdb->enum_alias_memberships(pdb, mem_ctx,
 957                                                        domain_sid,
 958                                                        members, num_members,
 959                                                        pp_alias_rids,
 960                                                        p_num_alias_rids);
 961 }
 962
 963 NTSTATUS pdb_lookup_rids(const DOM_SID *domain_sid,
 964                          int num_rids,
 965                          uint32 *rids,
 966                          const char **names,
 967                          enum lsa_SidType *attrs)
 968 {
 969         struct pdb_methods *pdb = pdb_get_methods();
 970         return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
 971 }
 972
 973 /*
 974  * NOTE: pdb_lookup_names is currently (2007-01-12) not used anywhere
 975  *       in the samba code.
 976  *       Unlike _lsa_lookup_sids and _samr_lookup_rids, which eventually
 977  *       also ask pdb_lookup_rids, thus looking up a bunch of rids at a time,
 978  *       the pdb_ calls _lsa_lookup_names and _samr_lookup_names come
 979  *       down to are pdb_getsampwnam and pdb_getgrnam instead of
 980  *       pdb_lookup_names.
 981  *       But in principle, it the call belongs to the API and might get
 982  *       used in this context some day.
 983  */
 984 #if 0
 985 NTSTATUS pdb_lookup_names(const DOM_SID *domain_sid,
 986                           int num_names,
 987                           const char **names,
 988                           uint32 *rids,
 989                           enum lsa_SidType *attrs)
 990 {
 991         struct pdb_methods *pdb = pdb_get_methods();
 992         return pdb->lookup_names(pdb, domain_sid, num_names, names, rids, attrs);
 993 }
 994 #endif
 995
 996 BOOL pdb_get_account_policy(int policy_index, uint32 *value)
 997 {
 998         struct pdb_methods *pdb = pdb_get_methods();
 999         NTSTATUS status;
1000
1001         become_root();
1002         status = pdb->get_account_policy(pdb, policy_index, value);
1003         unbecome_root();
1004
1005         return NT_STATUS_IS_OK(status);
1006 }
1007
1008 BOOL pdb_set_account_policy(int policy_index, uint32 value)
1009 {
1010         struct pdb_methods *pdb = pdb_get_methods();
1011         NTSTATUS status;
1012
1013         become_root();
1014         status = pdb->set_account_policy(pdb, policy_index, value);
1015         unbecome_root();
1016
1017         return NT_STATUS_IS_OK(status);
1018 }
1019
1020 BOOL pdb_get_seq_num(time_t *seq_num)
1021 {
1022         struct pdb_methods *pdb = pdb_get_methods();
1023         return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
1024 }
1025
1026 BOOL pdb_uid_to_rid(uid_t uid, uint32 *rid)
1027 {
1028         struct pdb_methods *pdb = pdb_get_methods();
1029         return pdb->uid_to_rid(pdb, uid, rid);
1030 }
1031
1032 BOOL pdb_uid_to_sid(uid_t uid, DOM_SID *sid)
1033 {
1034         struct pdb_methods *pdb = pdb_get_methods();
1035         return pdb->uid_to_sid(pdb, uid, sid);
1036 }
1037
1038 BOOL pdb_gid_to_sid(gid_t gid, DOM_SID *sid)
1039 {
1040         struct pdb_methods *pdb = pdb_get_methods();
1041         return pdb->gid_to_sid(pdb, gid, sid);
1042 }
1043
1044 BOOL pdb_sid_to_id(const DOM_SID *sid, union unid_t *id,
1045                    enum lsa_SidType *type)
1046 {
1047         struct pdb_methods *pdb = pdb_get_methods();
1048         return pdb->sid_to_id(pdb, sid, id, type);
1049 }
1050
1051 BOOL pdb_rid_algorithm(void)
1052 {
1053         struct pdb_methods *pdb = pdb_get_methods();
1054         return pdb->rid_algorithm(pdb);
1055 }
1056
1057 /********************************************************************
1058  Allocate a new RID from the passdb backend.  Verify that it is free
1059  by calling lookup_global_sam_rid() to verify that the RID is not
1060  in use.  This handles servers that have existing users or groups
1061  with add RIDs (assigned from previous algorithmic mappings)
1062 ********************************************************************/
1063
1064 BOOL pdb_new_rid(uint32 *rid)
1065 {
1066         struct pdb_methods *pdb = pdb_get_methods();
1067         const char *name = NULL;
1068         enum lsa_SidType type;
1069         uint32 allocated_rid = 0;
1070         int i;
1071         TALLOC_CTX *ctx;
1072
1073         if (pdb_rid_algorithm()) {
1074                 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1075                           "are active\n"));
1076                 return False;
1077         }
1078
1079         if (algorithmic_rid_base() != BASE_RID) {
1080                 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1081                           "without algorithmic RIDs is chosen.\n"));
1082                 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1083                              "add', set the maximum used RID using\n"));
1084                 DEBUGADD(0, ("'net setmaxrid' and remove the parameter\n"));
1085                 return False;
1086         }
1087
1088         if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1089                 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1090                 return False;
1091         }
1092
1093         /* Attempt to get an unused RID (max tires is 250...yes that it is
1094            and arbitrary number I pulkled out of my head).   -- jerry */
1095
1096         for ( i=0; allocated_rid==0 && i<250; i++ ) {
1097                 /* get a new RID */
1098
1099                 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1100                         return False;
1101                 }
1102
1103                 /* validate that the RID is not in use */
1104
1105                 if ( lookup_global_sam_rid( ctx, allocated_rid, &name, &type, NULL ) ) {
1106                         allocated_rid = 0;
1107                 }
1108         }
1109
1110         TALLOC_FREE( ctx );
1111
1112         if ( allocated_rid == 0 ) {
1113                 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1114                 return False;
1115         }
1116
1117         *rid = allocated_rid;
1118
1119         return True;
1120 }
1121
1122 /***************************************************************
1123   Initialize the static context (at smbd startup etc).
1124
1125   If uninitialised, context will auto-init on first use.
1126  ***************************************************************/
1127
1128 BOOL initialize_password_db(BOOL reload, struct event_context *event_ctx)
1129 {
1130         pdb_event_ctx = event_ctx;
1131         return (pdb_get_methods_reload(reload) != NULL);
1132 }
1133
1134
1135 /***************************************************************************
1136   Default implementations of some functions.
1137  ****************************************************************************/
1138
1139 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1140 {
1141         return NT_STATUS_NO_SUCH_USER;
1142 }
1143
1144 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const DOM_SID *sid)
1145 {
1146         return NT_STATUS_NO_SUCH_USER;
1147 }
1148
1149 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1150 {
1151         return NT_STATUS_NOT_IMPLEMENTED;
1152 }
1153
1154 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1155 {
1156         return NT_STATUS_NOT_IMPLEMENTED;
1157 }
1158
1159 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1160 {
1161         return NT_STATUS_NOT_IMPLEMENTED;
1162 }
1163
1164 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1165 {
1166         return NT_STATUS_NOT_IMPLEMENTED;
1167 }
1168
1169 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, BOOL success)
1170 {
1171         return NT_STATUS_OK;
1172 }
1173
1174 static NTSTATUS pdb_default_setsampwent(struct pdb_methods *methods, BOOL update, uint32 acb_mask)
1175 {
1176         return NT_STATUS_NOT_IMPLEMENTED;
1177 }
1178
1179 static NTSTATUS pdb_default_getsampwent(struct pdb_methods *methods, struct samu *user)
1180 {
1181         return NT_STATUS_NOT_IMPLEMENTED;
1182 }
1183
1184 static void pdb_default_endsampwent(struct pdb_methods *methods)
1185 {
1186         return; /* NT_STATUS_NOT_IMPLEMENTED; */
1187 }
1188
1189 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, int policy_index, uint32 *value)
1190 {
1191         return account_policy_get(policy_index, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1192 }
1193
1194 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, int policy_index, uint32 value)
1195 {
1196         return account_policy_set(policy_index, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1197 }
1198
1199 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1200 {
1201         *seq_num = time(NULL);
1202         return NT_STATUS_OK;
1203 }
1204
1205 static BOOL pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid,
1206                                    DOM_SID *sid)
1207 {
1208         struct samu *sampw = NULL;
1209         struct passwd *unix_pw;
1210         BOOL ret;
1211
1212         unix_pw = sys_getpwuid( uid );
1213
1214         if ( !unix_pw ) {
1215                 DEBUG(4,("pdb_default_uid_to_rid: host has no idea of uid "
1216                          "%lu\n", (unsigned long)uid));
1217                 return False;
1218         }
1219
1220         if ( !(sampw = samu_new( NULL )) ) {
1221                 DEBUG(0,("pdb_default_uid_to_rid: samu_new() failed!\n"));
1222                 return False;
1223         }
1224
1225         become_root();
1226         ret = NT_STATUS_IS_OK(
1227                 methods->getsampwnam(methods, sampw, unix_pw->pw_name ));
1228         unbecome_root();
1229
1230         if (!ret) {
1231                 DEBUG(5, ("pdb_default_uid_to_rid: Did not find user "
1232                           "%s (%d)\n", unix_pw->pw_name, uid));
1233                 TALLOC_FREE(sampw);
1234                 return False;
1235         }
1236
1237         sid_copy(sid, pdb_get_user_sid(sampw));
1238
1239         TALLOC_FREE(sampw);
1240
1241         return True;
1242 }
1243
1244 static BOOL pdb_default_uid_to_rid(struct pdb_methods *methods, uid_t uid,
1245                                    uint32 *rid)
1246 {
1247         DOM_SID sid;
1248         BOOL ret;
1249
1250         ret = pdb_default_uid_to_sid(methods, uid, &sid);
1251         if (!ret) {
1252                 return ret;
1253         }
1254
1255         ret = sid_peek_check_rid(get_global_sam_sid(), &sid, rid);
1256
1257         if (!ret) {
1258                 DEBUG(1, ("Could not peek rid out of sid %s\n",
1259                           sid_string_static(&sid)));
1260         }
1261
1262         return ret;
1263 }
1264
1265 static BOOL pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1266                                    DOM_SID *sid)
1267 {
1268         GROUP_MAP map;
1269
1270         if (!NT_STATUS_IS_OK(methods->getgrgid(methods, &map, gid))) {
1271                 return False;
1272         }
1273
1274         sid_copy(sid, &map.sid);
1275         return True;
1276 }
1277
1278 static BOOL pdb_default_sid_to_id(struct pdb_methods *methods,
1279                                   const DOM_SID *sid,
1280                                   union unid_t *id, enum lsa_SidType *type)
1281 {
1282         TALLOC_CTX *mem_ctx;
1283         BOOL ret = False;
1284         const char *name;
1285         uint32 rid;
1286
1287         mem_ctx = talloc_new(NULL);
1288
1289         if (mem_ctx == NULL) {
1290                 DEBUG(0, ("talloc_new failed\n"));
1291                 return False;
1292         }
1293
1294         if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1295                 /* Here we might have users as well as groups and aliases */
1296                 ret = lookup_global_sam_rid(mem_ctx, rid, &name, type, id);
1297                 goto done;
1298         }
1299
1300         /* check for "Unix User" */
1301
1302         if ( sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid) ) {
1303                 id->uid = rid;
1304                 *type = SID_NAME_USER;
1305                 ret = True;
1306                 goto done;
1307         }
1308
1309         /* check for "Unix Group" */
1310
1311         if ( sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid) ) {
1312                 id->gid = rid;
1313                 *type = SID_NAME_ALIAS;
1314                 ret = True;
1315                 goto done;
1316         }
1317
1318         /* BUILTIN */
1319
1320         if (sid_check_is_in_builtin(sid) ||
1321             sid_check_is_in_wellknown_domain(sid)) {
1322                 /* Here we only have aliases */
1323                 GROUP_MAP map;
1324                 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, &map, *sid))) {
1325                         DEBUG(10, ("Could not find map for sid %s\n",
1326                                    sid_string_static(sid)));
1327                         goto done;
1328                 }
1329                 if ((map.sid_name_use != SID_NAME_ALIAS) &&
1330                     (map.sid_name_use != SID_NAME_WKN_GRP)) {
1331                         DEBUG(10, ("Map for sid %s is a %s, expected an "
1332                                    "alias\n", sid_string_static(sid),
1333                                    sid_type_lookup(map.sid_name_use)));
1334                         goto done;
1335                 }
1336
1337                 id->gid = map.gid;
1338                 *type = SID_NAME_ALIAS;
1339                 ret = True;
1340                 goto done;
1341         }
1342
1343         DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n",
1344                   sid_string_static(sid)));
1345
1346  done:
1347
1348         TALLOC_FREE(mem_ctx);
1349         return ret;
1350 }
1351
1352 static BOOL add_uid_to_array_unique(TALLOC_CTX *mem_ctx,
1353                                     uid_t uid, uid_t **pp_uids, size_t *p_num)
1354 {
1355         size_t i;
1356
1357         for (i=0; i<*p_num; i++) {
1358                 if ((*pp_uids)[i] == uid)
1359                         return True;
1360         }
1361
1362         *pp_uids = TALLOC_REALLOC_ARRAY(mem_ctx, *pp_uids, uid_t, *p_num+1);
1363
1364         if (*pp_uids == NULL)
1365                 return False;
1366
1367         (*pp_uids)[*p_num] = uid;
1368         *p_num += 1;
1369         return True;
1370 }
1371
1372 static BOOL get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, size_t *p_num)
1373 {
1374         struct group *grp;
1375         char **gr;
1376         struct passwd *pwd;
1377         BOOL winbind_env;
1378         BOOL ret = False;
1379
1380         *pp_uids = NULL;
1381         *p_num = 0;
1382
1383         /* We only look at our own sam, so don't care about imported stuff */
1384         winbind_env = winbind_env_set();
1385         winbind_off();
1386
1387         if ((grp = getgrgid(gid)) == NULL) {
1388                 /* allow winbindd lookups, but only if they weren't already disabled */
1389                 goto done;
1390         }
1391
1392         /* Primary group members */
1393         setpwent();
1394         while ((pwd = getpwent()) != NULL) {
1395                 if (pwd->pw_gid == gid) {
1396                         if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1397                                                 pp_uids, p_num)) {
1398                                 goto done;
1399                         }
1400                 }
1401         }
1402         endpwent();
1403
1404         /* Secondary group members */
1405         for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1406                 struct passwd *pw = getpwnam(*gr);
1407
1408                 if (pw == NULL)
1409                         continue;
1410                 if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) {
1411                         goto done;
1412                 }
1413         }
1414
1415         ret = True;
1416
1417   done:
1418
1419         /* allow winbindd lookups, but only if they weren't already disabled */
1420         if (!winbind_env) {
1421                 winbind_on();
1422         }
1423
1424         return ret;
1425 }
1426
1427 static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1428                                                TALLOC_CTX *mem_ctx,
1429                                                const DOM_SID *group,
1430                                                uint32 **pp_member_rids,
1431                                                size_t *p_num_members)
1432 {
1433         gid_t gid;
1434         uid_t *uids;
1435         size_t i, num_uids;
1436
1437         *pp_member_rids = NULL;
1438         *p_num_members = 0;
1439
1440         if (!sid_to_gid(group, &gid))
1441                 return NT_STATUS_NO_SUCH_GROUP;
1442
1443         if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1444                 return NT_STATUS_NO_SUCH_GROUP;
1445
1446         if (num_uids == 0)
1447                 return NT_STATUS_OK;
1448
1449         *pp_member_rids = TALLOC_ZERO_ARRAY(mem_ctx, uint32, num_uids);
1450
1451         for (i=0; i<num_uids; i++) {
1452                 DOM_SID sid;
1453
1454                 uid_to_sid(&sid, uids[i]);
1455
1456                 if (!sid_check_is_in_our_domain(&sid)) {
1457                         DEBUG(5, ("Inconsistent SAM -- group member uid not "
1458                                   "in our domain\n"));
1459                         continue;
1460                 }
1461
1462                 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1463                 *p_num_members += 1;
1464         }
1465
1466         return NT_STATUS_OK;
1467 }
1468
1469 static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1470                                                    TALLOC_CTX *mem_ctx,
1471                                                    struct samu *user,
1472                                                    DOM_SID **pp_sids,
1473                                                    gid_t **pp_gids,
1474                                                    size_t *p_num_groups)
1475 {
1476         size_t i;
1477         gid_t gid;
1478         struct passwd *pw;
1479         const char *username = pdb_get_username(user);
1480
1481
1482         /* Ignore the primary group SID.  Honor the real Unix primary group.
1483            The primary group SID is only of real use to Windows clients */
1484
1485         if ( !(pw = getpwnam_alloc(mem_ctx, username)) ) {
1486                 return NT_STATUS_NO_SUCH_USER;
1487         }
1488
1489         gid = pw->pw_gid;
1490
1491         TALLOC_FREE( pw );
1492
1493         if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1494                 return NT_STATUS_NO_SUCH_USER;
1495         }
1496
1497         if (*p_num_groups == 0) {
1498                 smb_panic("primary group missing");
1499         }
1500
1501         *pp_sids = TALLOC_ARRAY(mem_ctx, DOM_SID, *p_num_groups);
1502
1503         if (*pp_sids == NULL) {
1504                 TALLOC_FREE(*pp_gids);
1505                 return NT_STATUS_NO_MEMORY;
1506         }
1507
1508         for (i=0; i<*p_num_groups; i++) {
1509                 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1510         }
1511
1512         return NT_STATUS_OK;
1513 }
1514
1515 /*******************************************************************
1516  Look up a rid in the SAM we're responsible for (i.e. passdb)
1517  ********************************************************************/
1518
1519 static BOOL lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32 rid,
1520                                   const char **name,
1521                                   enum lsa_SidType *psid_name_use,
1522                                   union unid_t *unix_id)
1523 {
1524         struct samu *sam_account = NULL;
1525         GROUP_MAP map;
1526         BOOL ret;
1527         DOM_SID sid;
1528
1529         *psid_name_use = SID_NAME_UNKNOWN;
1530
1531         DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1532                  (unsigned int)rid));
1533
1534         sid_copy(&sid, get_global_sam_sid());
1535         sid_append_rid(&sid, rid);
1536
1537         /* see if the passdb can help us with the name of the user */
1538
1539         if ( !(sam_account = samu_new( NULL )) ) {
1540                 return False;
1541         }
1542
1543         /* BEING ROOT BLLOCK */
1544         become_root();
1545         if (pdb_getsampwsid(sam_account, &sid)) {
1546                 struct passwd *pw;
1547
1548                 unbecome_root();                /* -----> EXIT BECOME_ROOT() */
1549                 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1550                 if (!*name) {
1551                         TALLOC_FREE(sam_account);
1552                         return False;
1553                 }
1554
1555                 *psid_name_use = SID_NAME_USER;
1556
1557                 TALLOC_FREE(sam_account);
1558
1559                 if (unix_id == NULL) {
1560                         return True;
1561                 }
1562
1563                 pw = Get_Pwnam(*name);
1564                 if (pw == NULL) {
1565                         return False;
1566                 }
1567                 unix_id->uid = pw->pw_uid;
1568                 return True;
1569         }
1570         TALLOC_FREE(sam_account);
1571
1572         ret = pdb_getgrsid(&map, sid);
1573         unbecome_root();
1574         /* END BECOME_ROOT BLOCK */
1575
1576         /* do not resolve SIDs to a name unless there is a valid
1577            gid associated with it */
1578
1579         if ( ret && (map.gid != (gid_t)-1) ) {
1580                 *name = talloc_strdup(mem_ctx, map.nt_name);
1581                 *psid_name_use = map.sid_name_use;
1582
1583                 if ( unix_id ) {
1584                         unix_id->gid = map.gid;
1585                 }
1586
1587                 return True;
1588         }
1589
1590         /* Windows will always map RID 513 to something.  On a non-domain
1591            controller, this gets mapped to SERVER\None. */
1592
1593         if ( unix_id ) {
1594                 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1595                 return False;
1596         }
1597
1598         if ( rid == DOMAIN_GROUP_RID_USERS ) {
1599                 *name = talloc_strdup(mem_ctx, "None" );
1600                 *psid_name_use = SID_NAME_DOM_GRP;
1601
1602                 return True;
1603         }
1604
1605         return False;
1606 }
1607
1608 static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1609                                         const DOM_SID *domain_sid,
1610                                         int num_rids,
1611                                         uint32 *rids,
1612                                         const char **names,
1613                                         enum lsa_SidType *attrs)
1614 {
1615         int i;
1616         NTSTATUS result;
1617         BOOL have_mapped = False;
1618         BOOL have_unmapped = False;
1619
1620         if (sid_check_is_builtin(domain_sid)) {
1621
1622                 for (i=0; i<num_rids; i++) {
1623                         const char *name;
1624
1625                         if (lookup_builtin_rid(names, rids[i], &name)) {
1626                                 attrs[i] = SID_NAME_ALIAS;
1627                                 names[i] = name;
1628                                 DEBUG(5,("lookup_rids: %s:%d\n",
1629                                          names[i], attrs[i]));
1630                                 have_mapped = True;
1631                         } else {
1632                                 have_unmapped = True;
1633                                 attrs[i] = SID_NAME_UNKNOWN;
1634                         }
1635                 }
1636                 goto done;
1637         }
1638
1639         /* Should not happen, but better check once too many */
1640         if (!sid_check_is_domain(domain_sid)) {
1641                 return NT_STATUS_INVALID_HANDLE;
1642         }
1643
1644         for (i = 0; i < num_rids; i++) {
1645                 const char *name;
1646
1647                 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1648                                           NULL)) {
1649                         if (name == NULL) {
1650                                 return NT_STATUS_NO_MEMORY;
1651                         }
1652                         names[i] = name;
1653                         DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1654                         have_mapped = True;
1655                 } else {
1656                         have_unmapped = True;
1657                         attrs[i] = SID_NAME_UNKNOWN;
1658                 }
1659         }
1660
1661  done:
1662
1663         result = NT_STATUS_NONE_MAPPED;
1664
1665         if (have_mapped)
1666                 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1667
1668         return result;
1669 }
1670
1671 #if 0
1672 static NTSTATUS pdb_default_lookup_names(struct pdb_methods *methods,
1673                                          const DOM_SID *domain_sid,
1674                                          int num_names,
1675                                          const char **names,
1676                                          uint32 *rids,
1677                                          enum lsa_SidType *attrs)
1678 {
1679         int i;
1680         NTSTATUS result;
1681         BOOL have_mapped = False;
1682         BOOL have_unmapped = False;
1683
1684         if (sid_check_is_builtin(domain_sid)) {
1685
1686                 for (i=0; i<num_names; i++) {
1687                         uint32 rid;
1688
1689                         if (lookup_builtin_name(names[i], &rid)) {
1690                                 attrs[i] = SID_NAME_ALIAS;
1691                                 rids[i] = rid;
1692                                 DEBUG(5,("lookup_rids: %s:%d\n",
1693                                          names[i], attrs[i]));
1694                                 have_mapped = True;
1695                         } else {
1696                                 have_unmapped = True;
1697                                 attrs[i] = SID_NAME_UNKNOWN;
1698                         }
1699                 }
1700                 goto done;
1701         }
1702
1703         /* Should not happen, but better check once too many */
1704         if (!sid_check_is_domain(domain_sid)) {
1705                 return NT_STATUS_INVALID_HANDLE;
1706         }
1707
1708         for (i = 0; i < num_names; i++) {
1709                 if (lookup_global_sam_name(names[i], 0, &rids[i], &attrs[i])) {
1710                         DEBUG(5,("lookup_names: %s-> %d:%d\n", names[i],
1711                                  rids[i], attrs[i]));
1712                         have_mapped = True;
1713                 } else {
1714                         have_unmapped = True;
1715                         attrs[i] = SID_NAME_UNKNOWN;
1716                 }
1717         }
1718
1719  done:
1720
1721         result = NT_STATUS_NONE_MAPPED;
1722
1723         if (have_mapped)
1724                 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1725
1726         return result;
1727 }
1728 #endif
1729
1730 static struct pdb_search *pdb_search_init(enum pdb_search_type type)
1731 {
1732         TALLOC_CTX *mem_ctx;
1733         struct pdb_search *result;
1734
1735         mem_ctx = talloc_init("pdb_search");
1736         if (mem_ctx == NULL) {
1737                 DEBUG(0, ("talloc_init failed\n"));
1738                 return NULL;
1739         }
1740
1741         result = TALLOC_P(mem_ctx, struct pdb_search);
1742         if (result == NULL) {
1743                 DEBUG(0, ("talloc failed\n"));
1744                 return NULL;
1745         }
1746
1747         result->mem_ctx = mem_ctx;
1748         result->type = type;
1749         result->cache = NULL;
1750         result->num_entries = 0;
1751         result->cache_size = 0;
1752         result->search_ended = False;
1753
1754         /* Segfault appropriately if not initialized */
1755         result->next_entry = NULL;
1756         result->search_end = NULL;
1757
1758         return result;
1759 }
1760
1761 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32 rid,
1762                               uint16 acct_flags,
1763                               const char *account_name,
1764                               const char *fullname,
1765                               const char *description,
1766                               struct samr_displayentry *entry)
1767 {
1768         entry->rid = rid;
1769         entry->acct_flags = acct_flags;
1770
1771         if (account_name != NULL)
1772                 entry->account_name = talloc_strdup(mem_ctx, account_name);
1773         else
1774                 entry->account_name = "";
1775
1776         if (fullname != NULL)
1777                 entry->fullname = talloc_strdup(mem_ctx, fullname);
1778         else
1779                 entry->fullname = "";
1780
1781         if (description != NULL)
1782                 entry->description = talloc_strdup(mem_ctx, description);
1783         else
1784                 entry->description = "";
1785 }
1786
1787 static BOOL user_search_in_progress = False;
1788 struct user_search {
1789         uint16 acct_flags;
1790 };
1791
1792 static BOOL next_entry_users(struct pdb_search *s,
1793                              struct samr_displayentry *entry)
1794 {
1795         struct user_search *state = (struct user_search *)s->private_data;
1796         struct samu *user = NULL;
1797
1798  next:
1799         if ( !(user = samu_new( NULL )) ) {
1800                 DEBUG(0, ("next_entry_users: samu_new() failed!\n"));
1801                 return False;
1802         }
1803
1804         if (!pdb_getsampwent(user)) {
1805                 TALLOC_FREE(user);
1806                 return False;
1807         }
1808
1809         if ((state->acct_flags != 0) &&
1810             ((pdb_get_acct_ctrl(user) & state->acct_flags) == 0)) {
1811                 TALLOC_FREE(user);
1812                 goto next;
1813         }
1814
1815         fill_displayentry(s->mem_ctx, pdb_get_user_rid(user),
1816                           pdb_get_acct_ctrl(user), pdb_get_username(user),
1817                           pdb_get_fullname(user), pdb_get_acct_desc(user),
1818                           entry);
1819
1820         TALLOC_FREE(user);
1821         return True;
1822 }
1823
1824 static void search_end_users(struct pdb_search *search)
1825 {
1826         pdb_endsampwent();
1827         user_search_in_progress = False;
1828 }
1829
1830 static BOOL pdb_default_search_users(struct pdb_methods *methods,
1831                                      struct pdb_search *search,
1832                                      uint32 acct_flags)
1833 {
1834         struct user_search *state;
1835
1836         if (user_search_in_progress) {
1837                 DEBUG(1, ("user search in progress\n"));
1838                 return False;
1839         }
1840
1841         if (!pdb_setsampwent(False, acct_flags)) {
1842                 DEBUG(5, ("Could not start search\n"));
1843                 return False;
1844         }
1845
1846         user_search_in_progress = True;
1847
1848         state = TALLOC_P(search->mem_ctx, struct user_search);
1849         if (state == NULL) {
1850                 DEBUG(0, ("talloc failed\n"));
1851                 return False;
1852         }
1853
1854         state->acct_flags = acct_flags;
1855
1856         search->private_data = state;
1857         search->next_entry = next_entry_users;
1858         search->search_end = search_end_users;
1859         return True;
1860 }
1861
1862 struct group_search {
1863         GROUP_MAP *groups;
1864         size_t num_groups, current_group;
1865 };
1866
1867 static BOOL next_entry_groups(struct pdb_search *s,
1868                               struct samr_displayentry *entry)
1869 {
1870         struct group_search *state = (struct group_search *)s->private_data;
1871         uint32 rid;
1872         GROUP_MAP *map = &state->groups[state->current_group];
1873
1874         if (state->current_group == state->num_groups)
1875                 return False;
1876
1877         sid_peek_rid(&map->sid, &rid);
1878
1879         fill_displayentry(s->mem_ctx, rid, 0, map->nt_name, NULL, map->comment,
1880                           entry);
1881
1882         state->current_group += 1;
1883         return True;
1884 }
1885
1886 static void search_end_groups(struct pdb_search *search)
1887 {
1888         struct group_search *state =
1889                 (struct group_search *)search->private_data;
1890         SAFE_FREE(state->groups);
1891 }
1892
1893 static BOOL pdb_search_grouptype(struct pdb_search *search,
1894                                  const DOM_SID *sid, enum lsa_SidType type)
1895 {
1896         struct group_search *state;
1897
1898         state = TALLOC_P(search->mem_ctx, struct group_search);
1899         if (state == NULL) {
1900                 DEBUG(0, ("talloc failed\n"));
1901                 return False;
1902         }
1903
1904         if (!pdb_enum_group_mapping(sid, type, &state->groups, &state->num_groups,
1905                                     True)) {
1906                 DEBUG(0, ("Could not enum groups\n"));
1907                 return False;
1908         }
1909
1910         state->current_group = 0;
1911         search->private_data = state;
1912         search->next_entry = next_entry_groups;
1913         search->search_end = search_end_groups;
1914         return True;
1915 }
1916
1917 static BOOL pdb_default_search_groups(struct pdb_methods *methods,
1918                                       struct pdb_search *search)
1919 {
1920         return pdb_search_grouptype(search, get_global_sam_sid(), SID_NAME_DOM_GRP);
1921 }
1922
1923 static BOOL pdb_default_search_aliases(struct pdb_methods *methods,
1924                                        struct pdb_search *search,
1925                                        const DOM_SID *sid)
1926 {
1927
1928         return pdb_search_grouptype(search, sid, SID_NAME_ALIAS);
1929 }
1930
1931 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
1932                                                      uint32 idx)
1933 {
1934         if (idx < search->num_entries)
1935                 return &search->cache[idx];
1936
1937         if (search->search_ended)
1938                 return NULL;
1939
1940         while (idx >= search->num_entries) {
1941                 struct samr_displayentry entry;
1942
1943                 if (!search->next_entry(search, &entry)) {
1944                         search->search_end(search);
1945                         search->search_ended = True;
1946                         break;
1947                 }
1948
1949                 ADD_TO_LARGE_ARRAY(search->mem_ctx, struct samr_displayentry,
1950                                    entry, &search->cache, &search->num_entries,
1951                                    &search->cache_size);
1952         }
1953
1954         return (search->num_entries > idx) ? &search->cache[idx] : NULL;
1955 }
1956
1957 struct pdb_search *pdb_search_users(uint32 acct_flags)
1958 {
1959         struct pdb_methods *pdb = pdb_get_methods();
1960         struct pdb_search *result;
1961
1962         result = pdb_search_init(PDB_USER_SEARCH);
1963         if (result == NULL) {
1964                 return NULL;
1965         }
1966
1967         if (!pdb->search_users(pdb, result, acct_flags)) {
1968                 talloc_destroy(result->mem_ctx);
1969                 return NULL;
1970         }
1971         return result;
1972 }
1973
1974 struct pdb_search *pdb_search_groups(void)
1975 {
1976         struct pdb_methods *pdb = pdb_get_methods();
1977         struct pdb_search *result;
1978
1979         result = pdb_search_init(PDB_GROUP_SEARCH);
1980         if (result == NULL) {
1981                  return NULL;
1982         }
1983
1984         if (!pdb->search_groups(pdb, result)) {
1985                 talloc_destroy(result->mem_ctx);
1986                 return NULL;
1987         }
1988         return result;
1989 }
1990
1991 struct pdb_search *pdb_search_aliases(const DOM_SID *sid)
1992 {
1993         struct pdb_methods *pdb = pdb_get_methods();
1994         struct pdb_search *result;
1995
1996         if (pdb == NULL) return NULL;
1997
1998         result = pdb_search_init(PDB_ALIAS_SEARCH);
1999         if (result == NULL) return NULL;
2000
2001         if (!pdb->search_aliases(pdb, result, sid)) {
2002                 talloc_destroy(result->mem_ctx);
2003                 return NULL;
2004         }
2005         return result;
2006 }
2007
2008 uint32 pdb_search_entries(struct pdb_search *search,
2009                           uint32 start_idx, uint32 max_entries,
2010                           struct samr_displayentry **result)
2011 {
2012         struct samr_displayentry *end_entry;
2013         uint32 end_idx = start_idx+max_entries-1;
2014
2015         /* The first entry needs to be searched after the last. Otherwise the
2016          * first entry might have moved due to a realloc during the search for
2017          * the last entry. */
2018
2019         end_entry = pdb_search_getentry(search, end_idx);
2020         *result = pdb_search_getentry(search, start_idx);
2021
2022         if (end_entry != NULL)
2023                 return max_entries;
2024
2025         if (start_idx >= search->num_entries)
2026                 return 0;
2027
2028         return search->num_entries - start_idx;
2029 }
2030
2031 void pdb_search_destroy(struct pdb_search *search)
2032 {
2033         if (search == NULL)
2034                 return;
2035
2036         if (!search->search_ended)
2037                 search->search_end(search);
2038
2039         talloc_destroy(search->mem_ctx);
2040 }
2041
2042 /*******************************************************************
2043  trustodm methods
2044  *******************************************************************/
2045
2046 BOOL pdb_get_trusteddom_pw(const char *domain, char** pwd, DOM_SID *sid,
2047                            time_t *pass_last_set_time)
2048 {
2049         struct pdb_methods *pdb = pdb_get_methods();
2050         return pdb->get_trusteddom_pw(pdb, domain, pwd, sid,
2051                         pass_last_set_time);
2052 }
2053
2054 BOOL pdb_set_trusteddom_pw(const char* domain, const char* pwd,
2055                            const DOM_SID *sid)
2056 {
2057         struct pdb_methods *pdb = pdb_get_methods();
2058         return pdb->set_trusteddom_pw(pdb, domain, pwd, sid);
2059 }
2060
2061 BOOL pdb_del_trusteddom_pw(const char *domain)
2062 {
2063         struct pdb_methods *pdb = pdb_get_methods();
2064         return pdb->del_trusteddom_pw(pdb, domain);
2065 }
2066
2067 NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32 *num_domains,
2068                               struct trustdom_info ***domains)
2069 {
2070         struct pdb_methods *pdb = pdb_get_methods();
2071         return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains);
2072 }
2073
2074 /*******************************************************************
2075  the defaults for trustdom methods:
2076  these simply call the original passdb/secrets.c actions,
2077  to be replaced by pdb_ldap.
2078  *******************************************************************/
2079
2080 static BOOL pdb_default_get_trusteddom_pw(struct pdb_methods *methods,
2081                                           const char *domain,
2082                                           char** pwd,
2083                                           DOM_SID *sid,
2084                                           time_t *pass_last_set_time)
2085 {
2086         return secrets_fetch_trusted_domain_password(domain, pwd,
2087                                 sid, pass_last_set_time);
2088
2089 }
2090
2091 static BOOL pdb_default_set_trusteddom_pw(struct pdb_methods *methods,
2092                                           const char* domain,
2093                                           const char* pwd,
2094                                           const DOM_SID *sid)
2095 {
2096         return secrets_store_trusted_domain_password(domain, pwd, sid);
2097 }
2098
2099 static BOOL pdb_default_del_trusteddom_pw(struct pdb_methods *methods,
2100                                           const char *domain)
2101 {
2102         return trusted_domain_password_delete(domain);
2103 }
2104
2105 static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods,
2106                                              TALLOC_CTX *mem_ctx,
2107                                              uint32 *num_domains,
2108                                              struct trustdom_info ***domains)
2109 {
2110         return secrets_trusted_domains(mem_ctx, num_domains, domains);
2111 }
2112
2113 /*******************************************************************
2114  Create a pdb_methods structure and initialize it with the default
2115  operations.  In this way a passdb module can simply implement
2116  the functionality it cares about.  However, normally this is done
2117  in groups of related functions.
2118 *******************************************************************/
2119
2120 NTSTATUS make_pdb_method( struct pdb_methods **methods )
2121 {
2122         /* allocate memory for the structure as its own talloc CTX */
2123
2124         if ( !(*methods = TALLOC_ZERO_P(NULL, struct pdb_methods) ) ) {
2125                 return NT_STATUS_NO_MEMORY;
2126         }
2127
2128         (*methods)->setsampwent = pdb_default_setsampwent;
2129         (*methods)->endsampwent = pdb_default_endsampwent;
2130         (*methods)->getsampwent = pdb_default_getsampwent;
2131         (*methods)->getsampwnam = pdb_default_getsampwnam;
2132         (*methods)->getsampwsid = pdb_default_getsampwsid;
2133         (*methods)->create_user = pdb_default_create_user;
2134         (*methods)->delete_user = pdb_default_delete_user;
2135         (*methods)->add_sam_account = pdb_default_add_sam_account;
2136         (*methods)->update_sam_account = pdb_default_update_sam_account;
2137         (*methods)->delete_sam_account = pdb_default_delete_sam_account;
2138         (*methods)->rename_sam_account = pdb_default_rename_sam_account;
2139         (*methods)->update_login_attempts = pdb_default_update_login_attempts;
2140
2141         (*methods)->getgrsid = pdb_default_getgrsid;
2142         (*methods)->getgrgid = pdb_default_getgrgid;
2143         (*methods)->getgrnam = pdb_default_getgrnam;
2144         (*methods)->create_dom_group = pdb_default_create_dom_group;
2145         (*methods)->delete_dom_group = pdb_default_delete_dom_group;
2146         (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
2147         (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
2148         (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
2149         (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
2150         (*methods)->enum_group_members = pdb_default_enum_group_members;
2151         (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
2152         (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2153         (*methods)->add_groupmem = pdb_default_add_groupmem;
2154         (*methods)->del_groupmem = pdb_default_del_groupmem;
2155         (*methods)->create_alias = pdb_default_create_alias;
2156         (*methods)->delete_alias = pdb_default_delete_alias;
2157         (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2158         (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2159         (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2160         (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2161         (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2162         (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2163         (*methods)->lookup_rids = pdb_default_lookup_rids;
2164         (*methods)->get_account_policy = pdb_default_get_account_policy;
2165         (*methods)->set_account_policy = pdb_default_set_account_policy;
2166         (*methods)->get_seq_num = pdb_default_get_seq_num;
2167         (*methods)->uid_to_rid = pdb_default_uid_to_rid;
2168         (*methods)->uid_to_sid = pdb_default_uid_to_sid;
2169         (*methods)->gid_to_sid = pdb_default_gid_to_sid;
2170         (*methods)->sid_to_id = pdb_default_sid_to_id;
2171
2172         (*methods)->search_users = pdb_default_search_users;
2173         (*methods)->search_groups = pdb_default_search_groups;
2174         (*methods)->search_aliases = pdb_default_search_aliases;
2175
2176         (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw;
2177         (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw;
2178         (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw;
2179         (*methods)->enum_trusteddoms  = pdb_default_enum_trusteddoms;
2180
2181         return NT_STATUS_OK;
2182 }