source/groupdb/mapping.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines
   4  *  Copyright (C) Andrew Tridgell              1992-2000,
   5  *  Copyright (C) Jean François Micouleau      1998-2001.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include "includes.h"
  23
  24 static TDB_CONTEXT *tdb; /* used for driver files */
  25
  26 #define DATABASE_VERSION_V1 1 /* native byte format. */
  27 #define DATABASE_VERSION_V2 2 /* le format. */
  28
  29 #define GROUP_PREFIX "UNIXGROUP/"
  30
  31 /* Alias memberships are stored reverse, as memberships. The performance
  32  * critical operation is to determine the aliases a SID is member of, not
  33  * listing alias members. So we store a list of alias SIDs a SID is member of
  34  * hanging of the member as key.
  35  */
  36 #define MEMBEROF_PREFIX "MEMBEROF/"
  37
  38 PRIVS privs[] = {
  39         {SE_PRIV_NONE,           "no_privs",                  "No privilege"                    }, /* this one MUST be first */
  40         {SE_PRIV_ADD_MACHINES,   "SeMachineAccountPrivilege", "Add workstations to the domain"  },
  41         {SE_PRIV_SEC_PRIV,       "SeSecurityPrivilege",       "Manage the audit logs"           },
  42         {SE_PRIV_TAKE_OWNER,     "SeTakeOwnershipPrivilege",  "Take ownership of file"          },
  43         {SE_PRIV_ADD_USERS,      "SaAddUsers",                "Add users to the domain - Samba" },
  44         {SE_PRIV_PRINT_OPERATOR, "SaPrintOp",                 "Add or remove printers - Samba"  },
  45         {SE_PRIV_ALL,            "SaAllPrivs",                "all privileges"                  }
  46 };
  47
  48
  49 /****************************************************************************
  50 dump the mapping group mapping to a text file
  51 ****************************************************************************/
  52 char *decode_sid_name_use(fstring group, enum SID_NAME_USE name_use)
  53 {
  54         static fstring group_type;
  55
  56         switch(name_use) {
  57                 case SID_NAME_USER:
  58                         fstrcpy(group_type,"User");
  59                         break;
  60                 case SID_NAME_DOM_GRP:
  61                         fstrcpy(group_type,"Domain group");
  62                         break;
  63                 case SID_NAME_DOMAIN:
  64                         fstrcpy(group_type,"Domain");
  65                         break;
  66                 case SID_NAME_ALIAS:
  67                         fstrcpy(group_type,"Local group");
  68                         break;
  69                 case SID_NAME_WKN_GRP:
  70                         fstrcpy(group_type,"Builtin group");
  71                         break;
  72                 case SID_NAME_DELETED:
  73                         fstrcpy(group_type,"Deleted");
  74                         break;
  75                 case SID_NAME_INVALID:
  76                         fstrcpy(group_type,"Invalid");
  77                         break;
  78                 case SID_NAME_UNKNOWN:
  79                 default:
  80                         fstrcpy(group_type,"Unknown type");
  81                         break;
  82         }
  83
  84         fstrcpy(group, group_type);
  85         return group_type;
  86 }
  87
  88 /****************************************************************************
  89 initialise first time the mapping list - called from init_group_mapping()
  90 ****************************************************************************/
  91 static BOOL default_group_mapping(void)
  92 {
  93         DOM_SID sid_admins;
  94         DOM_SID sid_users;
  95         DOM_SID sid_guests;
  96         fstring str_admins;
  97         fstring str_users;
  98         fstring str_guests;
  99
 100         /* Add the Wellknown groups */
 101
 102         add_initial_entry(-1, "S-1-5-32-544", SID_NAME_WKN_GRP, "Administrators", "");
 103         add_initial_entry(-1, "S-1-5-32-545", SID_NAME_WKN_GRP, "Users", "");
 104         add_initial_entry(-1, "S-1-5-32-546", SID_NAME_WKN_GRP, "Guests", "");
 105         add_initial_entry(-1, "S-1-5-32-547", SID_NAME_WKN_GRP, "Power Users", "");
 106         add_initial_entry(-1, "S-1-5-32-548", SID_NAME_WKN_GRP, "Account Operators", "");
 107         add_initial_entry(-1, "S-1-5-32-549", SID_NAME_WKN_GRP, "System Operators", "");
 108         add_initial_entry(-1, "S-1-5-32-550", SID_NAME_WKN_GRP, "Print Operators", "");
 109         add_initial_entry(-1, "S-1-5-32-551", SID_NAME_WKN_GRP, "Backup Operators", "");
 110         add_initial_entry(-1, "S-1-5-32-552", SID_NAME_WKN_GRP, "Replicators", "");
 111
 112         /* Add the defaults domain groups */
 113
 114         sid_copy(&sid_admins, get_global_sam_sid());
 115         sid_append_rid(&sid_admins, DOMAIN_GROUP_RID_ADMINS);
 116         sid_to_string(str_admins, &sid_admins);
 117         add_initial_entry(-1, str_admins, SID_NAME_DOM_GRP, "Domain Admins", "");
 118
 119         sid_copy(&sid_users,  get_global_sam_sid());
 120         sid_append_rid(&sid_users,  DOMAIN_GROUP_RID_USERS);
 121         sid_to_string(str_users, &sid_users);
 122         add_initial_entry(-1, str_users,  SID_NAME_DOM_GRP, "Domain Users",  "");
 123
 124         sid_copy(&sid_guests, get_global_sam_sid());
 125         sid_append_rid(&sid_guests, DOMAIN_GROUP_RID_GUESTS);
 126         sid_to_string(str_guests, &sid_guests);
 127         add_initial_entry(-1, str_guests, SID_NAME_DOM_GRP, "Domain Guests", "");
 128
 129         return True;
 130 }
 131
 132 /****************************************************************************
 133  Open the group mapping tdb.
 134 ****************************************************************************/
 135
 136 static BOOL init_group_mapping(void)
 137 {
 138         const char *vstring = "INFO/version";
 139         int32 vers_id;
 140
 141         if (tdb)
 142                 return True;
 143         tdb = tdb_open_log(lock_path("group_mapping.tdb"), 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
 144         if (!tdb) {
 145                 DEBUG(0,("Failed to open group mapping database\n"));
 146                 return False;
 147         }
 148
 149         /* handle a Samba upgrade */
 150         tdb_lock_bystring(tdb, vstring, 0);
 151
 152         /* Cope with byte-reversed older versions of the db. */
 153         vers_id = tdb_fetch_int32(tdb, vstring);
 154         if ((vers_id == DATABASE_VERSION_V1) || (IREV(vers_id) == DATABASE_VERSION_V1)) {
 155                 /* Written on a bigendian machine with old fetch_int code. Save as le. */
 156                 tdb_store_int32(tdb, vstring, DATABASE_VERSION_V2);
 157                 vers_id = DATABASE_VERSION_V2;
 158         }
 159
 160         if (vers_id != DATABASE_VERSION_V2) {
 161                 tdb_traverse(tdb, tdb_traverse_delete_fn, NULL);
 162                 tdb_store_int32(tdb, vstring, DATABASE_VERSION_V2);
 163         }
 164
 165         tdb_unlock_bystring(tdb, vstring);
 166
 167         /* write a list of default groups */
 168         if(!default_group_mapping())
 169                 return False;
 170
 171         return True;
 172 }
 173
 174 /****************************************************************************
 175 ****************************************************************************/
 176 static BOOL add_mapping_entry(GROUP_MAP *map, int flag)
 177 {
 178         TDB_DATA kbuf, dbuf;
 179         pstring key, buf;
 180         fstring string_sid="";
 181         int len;
 182
 183         if(!init_group_mapping()) {
 184                 DEBUG(0,("failed to initialize group mapping\n"));
 185                 return(False);
 186         }
 187
 188         sid_to_string(string_sid, &map->sid);
 189
 190         len = tdb_pack(buf, sizeof(buf), "ddff",
 191                         map->gid, map->sid_name_use, map->nt_name, map->comment);
 192
 193         if (len > sizeof(buf))
 194                 return False;
 195
 196         slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
 197
 198         kbuf.dsize = strlen(key)+1;
 199         kbuf.dptr = key;
 200         dbuf.dsize = len;
 201         dbuf.dptr = buf;
 202         if (tdb_store(tdb, kbuf, dbuf, flag) != 0) return False;
 203
 204         return True;
 205 }
 206
 207 /****************************************************************************
 208 initialise first time the mapping list
 209 ****************************************************************************/
 210 BOOL add_initial_entry(gid_t gid, const char *sid, enum SID_NAME_USE sid_name_use, const char *nt_name, const char *comment)
 211 {
 212         GROUP_MAP map;
 213
 214         if(!init_group_mapping()) {
 215                 DEBUG(0,("failed to initialize group mapping\n"));
 216                 return(False);
 217         }
 218
 219         map.gid=gid;
 220         if (!string_to_sid(&map.sid, sid)) {
 221                 DEBUG(0, ("string_to_sid failed: %s", sid));
 222                 return False;
 223         }
 224
 225         map.sid_name_use=sid_name_use;
 226         fstrcpy(map.nt_name, nt_name);
 227         fstrcpy(map.comment, comment);
 228
 229         return pdb_add_group_mapping_entry(&map);
 230 }
 231
 232 /****************************************************************************
 233  Return the sid and the type of the unix group.
 234 ****************************************************************************/
 235
 236 static BOOL get_group_map_from_sid(DOM_SID sid, GROUP_MAP *map)
 237 {
 238         TDB_DATA kbuf, dbuf;
 239         pstring key;
 240         fstring string_sid;
 241         int ret = 0;
 242
 243         if(!init_group_mapping()) {
 244                 DEBUG(0,("failed to initialize group mapping\n"));
 245                 return(False);
 246         }
 247
 248         /* the key is the SID, retrieving is direct */
 249
 250         sid_to_string(string_sid, &sid);
 251         slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
 252
 253         kbuf.dptr = key;
 254         kbuf.dsize = strlen(key)+1;
 255
 256         dbuf = tdb_fetch(tdb, kbuf);
 257         if (!dbuf.dptr)
 258                 return False;
 259
 260         ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
 261                                 &map->gid, &map->sid_name_use, &map->nt_name, &map->comment);
 262
 263         SAFE_FREE(dbuf.dptr);
 264
 265         if ( ret == -1 ) {
 266                 DEBUG(3,("get_group_map_from_sid: tdb_unpack failure\n"));
 267                 return False;
 268         }
 269
 270         sid_copy(&map->sid, &sid);
 271
 272         return True;
 273 }
 274
 275 /****************************************************************************
 276  Return the sid and the type of the unix group.
 277 ****************************************************************************/
 278
 279 static BOOL get_group_map_from_gid(gid_t gid, GROUP_MAP *map)
 280 {
 281         TDB_DATA kbuf, dbuf, newkey;
 282         fstring string_sid;
 283         int ret;
 284
 285         if(!init_group_mapping()) {
 286                 DEBUG(0,("failed to initialize group mapping\n"));
 287                 return(False);
 288         }
 289
 290         /* we need to enumerate the TDB to find the GID */
 291
 292         for (kbuf = tdb_firstkey(tdb);
 293              kbuf.dptr;
 294              newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
 295
 296                 if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0) continue;
 297
 298                 dbuf = tdb_fetch(tdb, kbuf);
 299                 if (!dbuf.dptr)
 300                         continue;
 301
 302                 fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
 303
 304                 string_to_sid(&map->sid, string_sid);
 305
 306                 ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
 307                                  &map->gid, &map->sid_name_use, &map->nt_name, &map->comment);
 308
 309                 SAFE_FREE(dbuf.dptr);
 310
 311                 if ( ret == -1 ) {
 312                         DEBUG(3,("get_group_map_from_gid: tdb_unpack failure\n"));
 313                         return False;
 314                 }
 315
 316                 if (gid==map->gid) {
 317                         SAFE_FREE(kbuf.dptr);
 318                         return True;
 319                 }
 320         }
 321
 322         return False;
 323 }
 324
 325 /****************************************************************************
 326  Return the sid and the type of the unix group.
 327 ****************************************************************************/
 328
 329 static BOOL get_group_map_from_ntname(const char *name, GROUP_MAP *map)
 330 {
 331         TDB_DATA kbuf, dbuf, newkey;
 332         fstring string_sid;
 333         int ret;
 334
 335         if(!init_group_mapping()) {
 336                 DEBUG(0,("get_group_map_from_ntname:failed to initialize group mapping\n"));
 337                 return(False);
 338         }
 339
 340         /* we need to enumerate the TDB to find the name */
 341
 342         for (kbuf = tdb_firstkey(tdb);
 343              kbuf.dptr;
 344              newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
 345
 346                 if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0) continue;
 347
 348                 dbuf = tdb_fetch(tdb, kbuf);
 349                 if (!dbuf.dptr)
 350                         continue;
 351
 352                 fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
 353
 354                 string_to_sid(&map->sid, string_sid);
 355
 356                 ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
 357                                  &map->gid, &map->sid_name_use, &map->nt_name, &map->comment);
 358
 359                 SAFE_FREE(dbuf.dptr);
 360
 361                 if ( ret == -1 ) {
 362                         DEBUG(3,("get_group_map_from_ntname: tdb_unpack failure\n"));
 363                         return False;
 364                 }
 365
 366                 if (StrCaseCmp(name, map->nt_name)==0) {
 367                         SAFE_FREE(kbuf.dptr);
 368                         return True;
 369                 }
 370         }
 371
 372         return False;
 373 }
 374
 375 /****************************************************************************
 376  Remove a group mapping entry.
 377 ****************************************************************************/
 378
 379 static BOOL group_map_remove(DOM_SID sid)
 380 {
 381         TDB_DATA kbuf, dbuf;
 382         pstring key;
 383         fstring string_sid;
 384
 385         if(!init_group_mapping()) {
 386                 DEBUG(0,("failed to initialize group mapping\n"));
 387                 return(False);
 388         }
 389
 390         /* the key is the SID, retrieving is direct */
 391
 392         sid_to_string(string_sid, &sid);
 393         slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
 394
 395         kbuf.dptr = key;
 396         kbuf.dsize = strlen(key)+1;
 397
 398         dbuf = tdb_fetch(tdb, kbuf);
 399         if (!dbuf.dptr)
 400                 return False;
 401
 402         SAFE_FREE(dbuf.dptr);
 403
 404         if(tdb_delete(tdb, kbuf) != TDB_SUCCESS)
 405                 return False;
 406
 407         return True;
 408 }
 409
 410 /****************************************************************************
 411  Enumerate the group mapping.
 412 ****************************************************************************/
 413
 414 static BOOL enum_group_mapping(enum SID_NAME_USE sid_name_use, GROUP_MAP **rmap,
 415                         int *num_entries, BOOL unix_only)
 416 {
 417         TDB_DATA kbuf, dbuf, newkey;
 418         fstring string_sid;
 419         fstring group_type;
 420         GROUP_MAP map;
 421         GROUP_MAP *mapt;
 422         int ret;
 423         int entries=0;
 424
 425         if(!init_group_mapping()) {
 426                 DEBUG(0,("failed to initialize group mapping\n"));
 427                 return(False);
 428         }
 429
 430         *num_entries=0;
 431         *rmap=NULL;
 432
 433         for (kbuf = tdb_firstkey(tdb);
 434              kbuf.dptr;
 435              newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
 436
 437                 if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0)
 438                         continue;
 439
 440                 dbuf = tdb_fetch(tdb, kbuf);
 441                 if (!dbuf.dptr)
 442                         continue;
 443
 444                 fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
 445
 446                 ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
 447                                  &map.gid, &map.sid_name_use, &map.nt_name, &map.comment);
 448
 449                 SAFE_FREE(dbuf.dptr);
 450
 451                 if ( ret == -1 ) {
 452                         DEBUG(3,("enum_group_mapping: tdb_unpack failure\n"));
 453                         continue;
 454                 }
 455
 456                 /* list only the type or everything if UNKNOWN */
 457                 if (sid_name_use!=SID_NAME_UNKNOWN  && sid_name_use!=map.sid_name_use) {
 458                         DEBUG(11,("enum_group_mapping: group %s is not of the requested type\n", map.nt_name));
 459                         continue;
 460                 }
 461
 462                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
 463                         DEBUG(11,("enum_group_mapping: group %s is non mapped\n", map.nt_name));
 464                         continue;
 465                 }
 466
 467                 string_to_sid(&map.sid, string_sid);
 468
 469                 decode_sid_name_use(group_type, map.sid_name_use);
 470                 DEBUG(11,("enum_group_mapping: returning group %s of type %s\n", map.nt_name ,group_type));
 471
 472                 mapt= SMB_REALLOC_ARRAY((*rmap), GROUP_MAP, entries+1);
 473                 if (!mapt) {
 474                         DEBUG(0,("enum_group_mapping: Unable to enlarge group map!\n"));
 475                         SAFE_FREE(*rmap);
 476                         return False;
 477                 }
 478                 else
 479                         (*rmap) = mapt;
 480
 481                 mapt[entries].gid = map.gid;
 482                 sid_copy( &mapt[entries].sid, &map.sid);
 483                 mapt[entries].sid_name_use = map.sid_name_use;
 484                 fstrcpy(mapt[entries].nt_name, map.nt_name);
 485                 fstrcpy(mapt[entries].comment, map.comment);
 486
 487                 entries++;
 488
 489         }
 490
 491         *num_entries=entries;
 492
 493         return True;
 494 }
 495
 496 /* This operation happens on session setup, so it should better be fast. We
 497  * store a list of aliases a SID is member of hanging off MEMBEROF/SID. */
 498
 499 static NTSTATUS one_alias_membership(const DOM_SID *member,
 500                                      DOM_SID **sids, int *num)
 501 {
 502         fstring key, string_sid;
 503         TDB_DATA kbuf, dbuf;
 504         const char *p;
 505
 506         if (!init_group_mapping()) {
 507                 DEBUG(0,("failed to initialize group mapping\n"));
 508                 return NT_STATUS_ACCESS_DENIED;
 509         }
 510
 511         sid_to_string(string_sid, member);
 512         slprintf(key, sizeof(key), "%s%s", MEMBEROF_PREFIX, string_sid);
 513
 514         kbuf.dsize = strlen(key)+1;
 515         kbuf.dptr = key;
 516
 517         dbuf = tdb_fetch(tdb, kbuf);
 518
 519         if (dbuf.dptr == NULL) {
 520                 return NT_STATUS_OK;
 521         }
 522
 523         p = dbuf.dptr;
 524
 525         while (next_token(&p, string_sid, " ", sizeof(string_sid))) {
 526
 527                 DOM_SID alias;
 528
 529                 if (!string_to_sid(&alias, string_sid))
 530                         continue;
 531
 532                 add_sid_to_array_unique(&alias, sids, num);
 533
 534                 if (sids == NULL)
 535                         return NT_STATUS_NO_MEMORY;
 536         }
 537
 538         SAFE_FREE(dbuf.dptr);
 539         return NT_STATUS_OK;
 540 }
 541
 542 static NTSTATUS alias_memberships(const DOM_SID *members, int num_members,
 543                                   DOM_SID **sids, int *num)
 544 {
 545         int i;
 546
 547         *num = 0;
 548         *sids = NULL;
 549
 550         for (i=0; i<num_members; i++) {
 551                 NTSTATUS status = one_alias_membership(&members[i], sids, num);
 552                 if (!NT_STATUS_IS_OK(status))
 553                         return status;
 554         }
 555         return NT_STATUS_OK;
 556 }
 557
 558 static BOOL is_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 559 {
 560         DOM_SID *sids;
 561         int i, num;
 562
 563         /* This feels the wrong way round, but the on-disk data structure
 564          * dictates it this way. */
 565         if (!NT_STATUS_IS_OK(alias_memberships(member, 1, &sids, &num)))
 566                 return False;
 567
 568         for (i=0; i<num; i++) {
 569                 if (sid_compare(alias, &sids[i]) == 0) {
 570                         SAFE_FREE(sids);
 571                         return True;
 572                 }
 573         }
 574         SAFE_FREE(sids);
 575         return False;
 576 }
 577
 578 static NTSTATUS add_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 579 {
 580         GROUP_MAP map;
 581         TDB_DATA kbuf, dbuf;
 582         pstring key;
 583         fstring string_sid;
 584         char *new_memberstring;
 585         int result;
 586
 587         if(!init_group_mapping()) {
 588                 DEBUG(0,("failed to initialize group mapping\n"));
 589                 return NT_STATUS_ACCESS_DENIED;
 590         }
 591
 592         if (!get_group_map_from_sid(*alias, &map))
 593                 return NT_STATUS_NO_SUCH_ALIAS;
 594
 595         if ( (map.sid_name_use != SID_NAME_ALIAS) &&
 596              (map.sid_name_use != SID_NAME_WKN_GRP) )
 597                 return NT_STATUS_NO_SUCH_ALIAS;
 598
 599         if (is_aliasmem(alias, member))
 600                 return NT_STATUS_MEMBER_IN_ALIAS;
 601
 602         sid_to_string(string_sid, member);
 603         slprintf(key, sizeof(key), "%s%s", MEMBEROF_PREFIX, string_sid);
 604
 605         kbuf.dsize = strlen(key)+1;
 606         kbuf.dptr = key;
 607
 608         dbuf = tdb_fetch(tdb, kbuf);
 609
 610         sid_to_string(string_sid, alias);
 611
 612         if (dbuf.dptr != NULL) {
 613                 asprintf(&new_memberstring, "%s %s", (char *)(dbuf.dptr),
 614                          string_sid);
 615         } else {
 616                 new_memberstring = SMB_STRDUP(string_sid);
 617         }
 618
 619         if (new_memberstring == NULL)
 620                 return NT_STATUS_NO_MEMORY;
 621
 622         SAFE_FREE(dbuf.dptr);
 623         dbuf.dsize = strlen(new_memberstring)+1;
 624         dbuf.dptr = new_memberstring;
 625
 626         result = tdb_store(tdb, kbuf, dbuf, 0);
 627
 628         SAFE_FREE(new_memberstring);
 629
 630         return (result == 0 ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED);
 631 }
 632
 633 struct aliasmem_closure {
 634         const DOM_SID *alias;
 635         DOM_SID **sids;
 636         int *num;
 637 };
 638
 639 static int collect_aliasmem(TDB_CONTEXT *tdb_ctx, TDB_DATA key, TDB_DATA data,
 640                             void *state)
 641 {
 642         struct aliasmem_closure *closure = (struct aliasmem_closure *)state;
 643         const char *p;
 644         fstring alias_string;
 645
 646         if (strncmp(key.dptr, MEMBEROF_PREFIX,
 647                     strlen(MEMBEROF_PREFIX)) != 0)
 648                 return 0;
 649
 650         p = data.dptr;
 651
 652         while (next_token(&p, alias_string, " ", sizeof(alias_string))) {
 653
 654                 DOM_SID alias, member;
 655                 const char *member_string;
 656
 657
 658                 if (!string_to_sid(&alias, alias_string))
 659                         continue;
 660
 661                 if (sid_compare(closure->alias, &alias) != 0)
 662                         continue;
 663
 664                 /* Ok, we found the alias we're looking for in the membership
 665                  * list currently scanned. The key represents the alias
 666                  * member. Add that. */
 667
 668                 member_string = strchr(key.dptr, '/');
 669
 670                 /* Above we tested for MEMBEROF_PREFIX which includes the
 671                  * slash. */
 672
 673                 SMB_ASSERT(member_string != NULL);
 674                 member_string += 1;
 675
 676                 if (!string_to_sid(&member, member_string))
 677                         continue;
 678
 679                 add_sid_to_array(&member, closure->sids, closure->num);
 680         }
 681
 682         return 0;
 683 }
 684
 685 static NTSTATUS enum_aliasmem(const DOM_SID *alias, DOM_SID **sids, int *num)
 686 {
 687         GROUP_MAP map;
 688         struct aliasmem_closure closure;
 689
 690         if(!init_group_mapping()) {
 691                 DEBUG(0,("failed to initialize group mapping\n"));
 692                 return NT_STATUS_ACCESS_DENIED;
 693         }
 694
 695         if (!get_group_map_from_sid(*alias, &map))
 696                 return NT_STATUS_NO_SUCH_ALIAS;
 697
 698         if ( (map.sid_name_use != SID_NAME_ALIAS) &&
 699              (map.sid_name_use != SID_NAME_WKN_GRP) )
 700                 return NT_STATUS_NO_SUCH_ALIAS;
 701
 702         *sids = NULL;
 703         *num = 0;
 704
 705         closure.alias = alias;
 706         closure.sids = sids;
 707         closure.num = num;
 708
 709         tdb_traverse(tdb, collect_aliasmem, &closure);
 710         return NT_STATUS_OK;
 711 }
 712
 713 static NTSTATUS del_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 714 {
 715         NTSTATUS result;
 716         DOM_SID *sids;
 717         int i, num;
 718         BOOL found = False;
 719         char *member_string;
 720         TDB_DATA kbuf, dbuf;
 721         pstring key;
 722         fstring sid_string;
 723
 724         result = alias_memberships(member, 1, &sids, &num);
 725
 726         if (!NT_STATUS_IS_OK(result))
 727                 return result;
 728
 729         for (i=0; i<num; i++) {
 730                 if (sid_compare(&sids[i], alias) == 0) {
 731                         found = True;
 732                         break;
 733                 }
 734         }
 735
 736         if (!found) {
 737                 SAFE_FREE(sids);
 738                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
 739         }
 740
 741         if (i < num)
 742                 sids[i] = sids[num-1];
 743
 744         num -= 1;
 745
 746         sid_to_string(sid_string, member);
 747         slprintf(key, sizeof(key), "%s%s", MEMBEROF_PREFIX, sid_string);
 748
 749         kbuf.dsize = strlen(key)+1;
 750         kbuf.dptr = key;
 751
 752         if (num == 0)
 753                 return tdb_delete(tdb, kbuf) == 0 ?
 754                         NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 755
 756         member_string = SMB_STRDUP("");
 757
 758         if (member_string == NULL) {
 759                 SAFE_FREE(sids);
 760                 return NT_STATUS_NO_MEMORY;
 761         }
 762
 763         for (i=0; i<num; i++) {
 764                 char *s = member_string;
 765
 766                 sid_to_string(sid_string, &sids[i]);
 767                 asprintf(&member_string, "%s %s", s, sid_string);
 768
 769                 SAFE_FREE(s);
 770                 if (member_string == NULL) {
 771                         SAFE_FREE(sids);
 772                         return NT_STATUS_NO_MEMORY;
 773                 }
 774         }
 775
 776         dbuf.dsize = strlen(member_string)+1;
 777         dbuf.dptr = member_string;
 778
 779         result = tdb_store(tdb, kbuf, dbuf, 0) == 0 ?
 780                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
 781
 782         SAFE_FREE(sids);
 783         SAFE_FREE(member_string);
 784
 785         return result;
 786 }
 787
 788 /*
 789  *
 790  * High level functions
 791  * better to use them than the lower ones.
 792  *
 793  * we are checking if the group is in the mapping file
 794  * and if the group is an existing unix group
 795  *
 796  */
 797
 798 /* get a domain group from it's SID */
 799
 800 BOOL get_domain_group_from_sid(DOM_SID sid, GROUP_MAP *map)
 801 {
 802         struct group *grp;
 803         BOOL ret;
 804
 805         if(!init_group_mapping()) {
 806                 DEBUG(0,("failed to initialize group mapping\n"));
 807                 return(False);
 808         }
 809
 810         DEBUG(10, ("get_domain_group_from_sid\n"));
 811
 812         /* if the group is NOT in the database, it CAN NOT be a domain group */
 813
 814         become_root();
 815         ret = pdb_getgrsid(map, sid);
 816         unbecome_root();
 817
 818         if ( !ret )
 819                 return False;
 820
 821         DEBUG(10, ("get_domain_group_from_sid: SID found in the TDB\n"));
 822
 823         /* if it's not a domain group, continue */
 824         if (map->sid_name_use!=SID_NAME_DOM_GRP) {
 825                 return False;
 826         }
 827
 828         DEBUG(10, ("get_domain_group_from_sid: SID is a domain group\n"));
 829
 830         if (map->gid==-1) {
 831                 return False;
 832         }
 833
 834         DEBUG(10, ("get_domain_group_from_sid: SID is mapped to gid:%lu\n",(unsigned long)map->gid));
 835
 836         grp = getgrgid(map->gid);
 837         if ( !grp ) {
 838                 DEBUG(10, ("get_domain_group_from_sid: gid DOESN'T exist in UNIX security\n"));
 839                 return False;
 840         }
 841
 842         DEBUG(10, ("get_domain_group_from_sid: gid exists in UNIX security\n"));
 843
 844         return True;
 845 }
 846
 847
 848 /* get a local (alias) group from it's SID */
 849
 850 BOOL get_local_group_from_sid(DOM_SID *sid, GROUP_MAP *map)
 851 {
 852         BOOL ret;
 853
 854         if(!init_group_mapping()) {
 855                 DEBUG(0,("failed to initialize group mapping\n"));
 856                 return(False);
 857         }
 858
 859         /* The group is in the mapping table */
 860         become_root();
 861         ret = pdb_getgrsid(map, *sid);
 862         unbecome_root();
 863
 864         if ( !ret )
 865                 return False;
 866
 867         if ( ( (map->sid_name_use != SID_NAME_ALIAS) &&
 868                (map->sid_name_use != SID_NAME_WKN_GRP) )
 869                 || (map->gid == -1)
 870                 || (getgrgid(map->gid) == NULL) )
 871         {
 872                 return False;
 873         }
 874
 875 #if 1   /* JERRY */
 876         /* local groups only exist in the group mapping DB so this
 877            is not necessary */
 878
 879         else {
 880                 /* the group isn't in the mapping table.
 881                  * make one based on the unix information */
 882                 uint32 alias_rid;
 883                 struct group *grp;
 884
 885                 sid_peek_rid(sid, &alias_rid);
 886                 map->gid=pdb_group_rid_to_gid(alias_rid);
 887
 888                 grp = getgrgid(map->gid);
 889                 if ( !grp ) {
 890                         DEBUG(3,("get_local_group_from_sid: No unix group for [%ul]\n", map->gid));
 891                         return False;
 892                 }
 893
 894                 map->sid_name_use=SID_NAME_ALIAS;
 895
 896                 fstrcpy(map->nt_name, grp->gr_name);
 897                 fstrcpy(map->comment, "Local Unix Group");
 898
 899                 sid_copy(&map->sid, sid);
 900         }
 901 #endif
 902
 903         return True;
 904 }
 905
 906 /* get a builtin group from it's SID */
 907
 908 BOOL get_builtin_group_from_sid(DOM_SID *sid, GROUP_MAP *map)
 909 {
 910         struct group *grp;
 911         BOOL ret;
 912
 913
 914         if(!init_group_mapping()) {
 915                 DEBUG(0,("failed to initialize group mapping\n"));
 916                 return(False);
 917         }
 918
 919         become_root();
 920         ret = pdb_getgrsid(map, *sid);
 921         unbecome_root();
 922
 923         if ( !ret )
 924                 return False;
 925
 926         if (map->sid_name_use!=SID_NAME_WKN_GRP) {
 927                 return False;
 928         }
 929
 930         if (map->gid==-1) {
 931                 return False;
 932         }
 933
 934         if ( (grp=getgrgid(map->gid)) == NULL) {
 935                 return False;
 936         }
 937
 938         return True;
 939 }
 940
 941
 942
 943 /****************************************************************************
 944 Returns a GROUP_MAP struct based on the gid.
 945 ****************************************************************************/
 946 BOOL get_group_from_gid(gid_t gid, GROUP_MAP *map)
 947 {
 948         struct group *grp;
 949         BOOL ret;
 950
 951         if(!init_group_mapping()) {
 952                 DEBUG(0,("failed to initialize group mapping\n"));
 953                 return(False);
 954         }
 955
 956         if ( (grp=getgrgid(gid)) == NULL)
 957                 return False;
 958
 959         become_root();
 960         ret = pdb_getgrgid(map, gid);
 961         unbecome_root();
 962
 963         if ( !ret ) {
 964                 return False;
 965         }
 966
 967         return True;
 968 }
 969
 970
 971 /****************************************************************************
 972  Create a UNIX group on demand.
 973 ****************************************************************************/
 974
 975 int smb_create_group(char *unix_group, gid_t *new_gid)
 976 {
 977         pstring add_script;
 978         int     ret = -1;
 979         int     fd = 0;
 980
 981         *new_gid = 0;
 982
 983         /* defer to scripts */
 984
 985         if ( *lp_addgroup_script() ) {
 986                 pstrcpy(add_script, lp_addgroup_script());
 987                 pstring_sub(add_script, "%g", unix_group);
 988                 ret = smbrun(add_script, (new_gid!=NULL) ? &fd : NULL);
 989                 DEBUG(3,("smb_create_group: Running the command `%s' gave %d\n",add_script,ret));
 990                 if (ret != 0)
 991                         return ret;
 992
 993                 if (fd != 0) {
 994                         fstring output;
 995
 996                         *new_gid = 0;
 997                         if (read(fd, output, sizeof(output)) > 0) {
 998                                 *new_gid = (gid_t)strtoul(output, NULL, 10);
 999                         }
1000
1001                         close(fd);
1002                 }
1003
1004         } else if ( winbind_create_group( unix_group, NULL ) ) {
1005
1006                 DEBUG(3,("smb_create_group: winbindd created the group (%s)\n",
1007                         unix_group));
1008                 ret = 0;
1009         }
1010
1011         if (*new_gid == 0) {
1012                 struct group *grp = getgrnam(unix_group);
1013
1014                 if (grp != NULL)
1015                         *new_gid = grp->gr_gid;
1016         }
1017
1018         return ret;
1019 }
1020
1021 /****************************************************************************
1022  Delete a UNIX group on demand.
1023 ****************************************************************************/
1024
1025 int smb_delete_group(char *unix_group)
1026 {
1027         pstring del_script;
1028         int ret;
1029
1030         /* defer to scripts */
1031
1032         if ( *lp_delgroup_script() ) {
1033                 pstrcpy(del_script, lp_delgroup_script());
1034                 pstring_sub(del_script, "%g", unix_group);
1035                 ret = smbrun(del_script,NULL);
1036                 DEBUG(3,("smb_delete_group: Running the command `%s' gave %d\n",del_script,ret));
1037                 return ret;
1038         }
1039
1040         if ( winbind_delete_group( unix_group ) ) {
1041                 DEBUG(3,("smb_delete_group: winbindd deleted the group (%s)\n",
1042                         unix_group));
1043                 return 0;
1044         }
1045
1046         return -1;
1047 }
1048
1049 /****************************************************************************
1050  Set a user's primary UNIX group.
1051 ****************************************************************************/
1052 int smb_set_primary_group(const char *unix_group, const char* unix_user)
1053 {
1054         pstring add_script;
1055         int ret;
1056
1057         /* defer to scripts */
1058
1059         if ( *lp_setprimarygroup_script() ) {
1060                 pstrcpy(add_script, lp_setprimarygroup_script());
1061                 all_string_sub(add_script, "%g", unix_group, sizeof(add_script));
1062                 all_string_sub(add_script, "%u", unix_user, sizeof(add_script));
1063                 ret = smbrun(add_script,NULL);
1064                 DEBUG(3,("smb_set_primary_group: "
1065                          "Running the command `%s' gave %d\n",add_script,ret));
1066                 return ret;
1067         }
1068
1069         /* Try winbindd */
1070
1071         if ( winbind_set_user_primary_group( unix_user, unix_group ) ) {
1072                 DEBUG(3,("smb_delete_group: winbindd set the group (%s) as the primary group for user (%s)\n",
1073                         unix_group, unix_user));
1074                 return 0;
1075         }
1076
1077         return -1;
1078 }
1079
1080 /****************************************************************************
1081  Add a user to a UNIX group.
1082 ****************************************************************************/
1083
1084 int smb_add_user_group(char *unix_group, char *unix_user)
1085 {
1086         pstring add_script;
1087         int ret;
1088
1089         /* defer to scripts */
1090
1091         if ( *lp_addusertogroup_script() ) {
1092                 pstrcpy(add_script, lp_addusertogroup_script());
1093                 pstring_sub(add_script, "%g", unix_group);
1094                 pstring_sub(add_script, "%u", unix_user);
1095                 ret = smbrun(add_script,NULL);
1096                 DEBUG(3,("smb_add_user_group: Running the command `%s' gave %d\n",add_script,ret));
1097                 return ret;
1098         }
1099
1100         /* Try winbindd */
1101
1102         if ( winbind_add_user_to_group( unix_user, unix_group ) ) {
1103                 DEBUG(3,("smb_delete_group: winbindd added user (%s) to the group (%s)\n",
1104                         unix_user, unix_group));
1105                 return -1;
1106         }
1107
1108         return -1;
1109 }
1110
1111 /****************************************************************************
1112  Delete a user from a UNIX group
1113 ****************************************************************************/
1114
1115 int smb_delete_user_group(const char *unix_group, const char *unix_user)
1116 {
1117         pstring del_script;
1118         int ret;
1119
1120         /* defer to scripts */
1121
1122         if ( *lp_deluserfromgroup_script() ) {
1123                 pstrcpy(del_script, lp_deluserfromgroup_script());
1124                 pstring_sub(del_script, "%g", unix_group);
1125                 pstring_sub(del_script, "%u", unix_user);
1126                 ret = smbrun(del_script,NULL);
1127                 DEBUG(3,("smb_delete_user_group: Running the command `%s' gave %d\n",del_script,ret));
1128                 return ret;
1129         }
1130
1131         /* Try winbindd */
1132
1133         if ( winbind_remove_user_from_group( unix_user, unix_group ) ) {
1134                 DEBUG(3,("smb_delete_group: winbindd removed user (%s) from the group (%s)\n",
1135                         unix_user, unix_group));
1136                 return 0;
1137         }
1138
1139         return -1;
1140 }
1141
1142
1143 NTSTATUS pdb_default_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
1144                                  DOM_SID sid)
1145 {
1146         return get_group_map_from_sid(sid, map) ?
1147                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1148 }
1149
1150 NTSTATUS pdb_default_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
1151                                  gid_t gid)
1152 {
1153         return get_group_map_from_gid(gid, map) ?
1154                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1155 }
1156
1157 NTSTATUS pdb_default_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
1158                                  const char *name)
1159 {
1160         return get_group_map_from_ntname(name, map) ?
1161                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1162 }
1163
1164 NTSTATUS pdb_default_add_group_mapping_entry(struct pdb_methods *methods,
1165                                                 GROUP_MAP *map)
1166 {
1167         return add_mapping_entry(map, TDB_INSERT) ?
1168                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1169 }
1170
1171 NTSTATUS pdb_default_update_group_mapping_entry(struct pdb_methods *methods,
1172                                                    GROUP_MAP *map)
1173 {
1174         return add_mapping_entry(map, TDB_REPLACE) ?
1175                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1176 }
1177
1178 NTSTATUS pdb_default_delete_group_mapping_entry(struct pdb_methods *methods,
1179                                                    DOM_SID sid)
1180 {
1181         return group_map_remove(sid) ?
1182                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1183 }
1184
1185 NTSTATUS pdb_default_enum_group_mapping(struct pdb_methods *methods,
1186                                            enum SID_NAME_USE sid_name_use,
1187                                            GROUP_MAP **rmap, int *num_entries,
1188                                            BOOL unix_only)
1189 {
1190         return enum_group_mapping(sid_name_use, rmap, num_entries, unix_only) ?
1191                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1192 }
1193
1194 NTSTATUS pdb_default_find_alias(struct pdb_methods *methods,
1195                                 const char *name, DOM_SID *sid)
1196 {
1197         GROUP_MAP map;
1198
1199         if (!pdb_getgrnam(&map, name))
1200                 return NT_STATUS_NO_SUCH_ALIAS;
1201
1202         if ((map.sid_name_use != SID_NAME_WKN_GRP) &&
1203             (map.sid_name_use != SID_NAME_ALIAS))
1204                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
1205
1206         sid_copy(sid, &map.sid);
1207         return NT_STATUS_OK;
1208 }
1209
1210 NTSTATUS pdb_default_create_alias(struct pdb_methods *methods,
1211                                   const char *name, uint32 *rid)
1212 {
1213         DOM_SID sid;
1214         enum SID_NAME_USE type;
1215         uint32 new_rid;
1216         gid_t gid;
1217
1218         GROUP_MAP map;
1219
1220         if (lookup_name(get_global_sam_name(), name, &sid, &type))
1221                 return NT_STATUS_ALIAS_EXISTS;
1222
1223         if (!winbind_allocate_rid(&new_rid))
1224                 return NT_STATUS_ACCESS_DENIED;
1225
1226         sid_copy(&sid, get_global_sam_sid());
1227         sid_append_rid(&sid, new_rid);
1228
1229         /* Here we allocate the gid */
1230         if (!winbind_sid_to_gid(&gid, &sid)) {
1231                 DEBUG(0, ("Could not get gid for new RID\n"));
1232                 return NT_STATUS_ACCESS_DENIED;
1233         }
1234
1235         map.gid = gid;
1236         sid_copy(&map.sid, &sid);
1237         map.sid_name_use = SID_NAME_ALIAS;
1238         fstrcpy(map.nt_name, name);
1239         fstrcpy(map.comment, "");
1240
1241         if (!pdb_add_group_mapping_entry(&map)) {
1242                 DEBUG(0, ("Could not add group mapping entry for alias %s\n",
1243                           name));
1244                 return NT_STATUS_ACCESS_DENIED;
1245         }
1246
1247         *rid = new_rid;
1248
1249         return NT_STATUS_OK;
1250 }
1251
1252 NTSTATUS pdb_default_delete_alias(struct pdb_methods *methods,
1253                                   const DOM_SID *sid)
1254 {
1255         return pdb_delete_group_mapping_entry(*sid) ?
1256                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1257 }
1258
1259 NTSTATUS pdb_default_enum_aliases(struct pdb_methods *methods,
1260                                   const DOM_SID *sid,
1261                                   uint32 start_idx, uint32 max_entries,
1262                                   uint32 *num_aliases,
1263                                   struct acct_info **info)
1264 {
1265         extern DOM_SID global_sid_Builtin;
1266
1267         GROUP_MAP *map;
1268         int i, num_maps;
1269         enum SID_NAME_USE type = SID_NAME_UNKNOWN;
1270
1271         if (sid_compare(sid, get_global_sam_sid()) == 0)
1272                 type = SID_NAME_ALIAS;
1273
1274         if (sid_compare(sid, &global_sid_Builtin) == 0)
1275                 type = SID_NAME_WKN_GRP;
1276
1277         if (!pdb_enum_group_mapping(type, &map, &num_maps, False) ||
1278             (num_maps == 0)) {
1279                 *num_aliases = 0;
1280                 *info = NULL;
1281                 goto done;
1282         }
1283
1284         if (start_idx > num_maps) {
1285                 *num_aliases = 0;
1286                 *info = NULL;
1287                 goto done;
1288         }
1289
1290         *num_aliases = num_maps - start_idx;
1291
1292         if (*num_aliases > max_entries)
1293                 *num_aliases = max_entries;
1294
1295         *info = SMB_MALLOC_ARRAY(struct acct_info, *num_aliases);
1296
1297         for (i=0; i<*num_aliases; i++) {
1298                 fstrcpy((*info)[i].acct_name, map[i+start_idx].nt_name);
1299                 fstrcpy((*info)[i].acct_desc, map[i+start_idx].comment);
1300                 sid_peek_rid(&map[i].sid, &(*info)[i+start_idx].rid);
1301         }
1302
1303  done:
1304         SAFE_FREE(map);
1305         return NT_STATUS_OK;
1306 }
1307
1308 NTSTATUS pdb_default_get_aliasinfo(struct pdb_methods *methods,
1309                                    const DOM_SID *sid,
1310                                    struct acct_info *info)
1311 {
1312         GROUP_MAP map;
1313
1314         if (!pdb_getgrsid(&map, *sid))
1315                 return NT_STATUS_NO_SUCH_ALIAS;
1316
1317         fstrcpy(info->acct_name, map.nt_name);
1318         fstrcpy(info->acct_desc, map.comment);
1319         sid_peek_rid(&map.sid, &info->rid);
1320         return NT_STATUS_OK;
1321 }
1322
1323 NTSTATUS pdb_default_set_aliasinfo(struct pdb_methods *methods,
1324                                    const DOM_SID *sid,
1325                                    struct acct_info *info)
1326 {
1327         GROUP_MAP map;
1328
1329         if (!pdb_getgrsid(&map, *sid))
1330                 return NT_STATUS_NO_SUCH_ALIAS;
1331
1332         fstrcpy(map.comment, info->acct_desc);
1333
1334         if (!pdb_update_group_mapping_entry(&map))
1335                 return NT_STATUS_ACCESS_DENIED;
1336
1337         return NT_STATUS_OK;
1338 }
1339
1340 NTSTATUS pdb_default_add_aliasmem(struct pdb_methods *methods,
1341                                   const DOM_SID *alias, const DOM_SID *member)
1342 {
1343         return add_aliasmem(alias, member);
1344 }
1345
1346 NTSTATUS pdb_default_del_aliasmem(struct pdb_methods *methods,
1347                                   const DOM_SID *alias, const DOM_SID *member)
1348 {
1349         return del_aliasmem(alias, member);
1350 }
1351
1352 NTSTATUS pdb_default_enum_aliasmem(struct pdb_methods *methods,
1353                                    const DOM_SID *alias, DOM_SID **members,
1354                                    int *num_members)
1355 {
1356         return enum_aliasmem(alias, members, num_members);
1357 }
1358
1359 NTSTATUS pdb_default_alias_memberships(struct pdb_methods *methods,
1360                                        const DOM_SID *members,
1361                                        int num_members,
1362                                        DOM_SID **aliases, int *num)
1363 {
1364         return alias_memberships(members, num_members, aliases, num);
1365 }
1366
1367 /**********************************************************************
1368  no ops for passdb backends that don't implement group mapping
1369  *********************************************************************/
1370
1371 NTSTATUS pdb_nop_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
1372                                  DOM_SID sid)
1373 {
1374         return NT_STATUS_UNSUCCESSFUL;
1375 }
1376
1377 NTSTATUS pdb_nop_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
1378                                  gid_t gid)
1379 {
1380         return NT_STATUS_UNSUCCESSFUL;
1381 }
1382
1383 NTSTATUS pdb_nop_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
1384                                  const char *name)
1385 {
1386         return NT_STATUS_UNSUCCESSFUL;
1387 }
1388
1389 NTSTATUS pdb_nop_add_group_mapping_entry(struct pdb_methods *methods,
1390                                                 GROUP_MAP *map)
1391 {
1392         return NT_STATUS_UNSUCCESSFUL;
1393 }
1394
1395 NTSTATUS pdb_nop_update_group_mapping_entry(struct pdb_methods *methods,
1396                                                    GROUP_MAP *map)
1397 {
1398         return NT_STATUS_UNSUCCESSFUL;
1399 }
1400
1401 NTSTATUS pdb_nop_delete_group_mapping_entry(struct pdb_methods *methods,
1402                                                    DOM_SID sid)
1403 {
1404         return NT_STATUS_UNSUCCESSFUL;
1405 }
1406
1407 NTSTATUS pdb_nop_enum_group_mapping(struct pdb_methods *methods,
1408                                            enum SID_NAME_USE sid_name_use,
1409                                            GROUP_MAP **rmap, int *num_entries,
1410                                            BOOL unix_only)
1411 {
1412         return NT_STATUS_UNSUCCESSFUL;
1413 }
1414