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  *  Copyright (C) Volker Lendecke              2006.
   7  *  Copyright (C) Gerald Carter                2006.
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 3 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 #include "includes.h"
  24 #include "groupdb/mapping.h"
  25
  26 static const struct mapping_backend *backend;
  27
  28 /*
  29   initialise a group mapping backend
  30  */
  31 static bool init_group_mapping(void)
  32 {
  33         const char *backend_string;
  34
  35         if (backend != NULL) {
  36                 /* already initialised */
  37                 return True;
  38         }
  39
  40         /*
  41          * default to using the ldb backend. This parameter should
  42          * disappear in future versions of Samba3.
  43          *
  44          * But it's needed for cluster setups, because it's
  45          * not yet possible to distribute a ldb inside a cluster.
  46          */
  47         backend_string = lp_parm_const_string(-1, "groupdb", "backend", "ldb");
  48
  49         if (strcmp(backend_string, "ldb") == 0) {
  50                 backend = groupdb_ldb_init();
  51         } else if (strcmp(backend_string, "tdb") == 0) {
  52                 backend = groupdb_tdb_init();
  53         } else {
  54                 DEBUG(0,("Unknown groupdb backend '%s'\n", backend_string));
  55                 smb_panic("Unknown groupdb backend");
  56         }
  57
  58         return backend != NULL;
  59 }
  60
  61 /****************************************************************************
  62 initialise first time the mapping list
  63 ****************************************************************************/
  64 NTSTATUS add_initial_entry(gid_t gid, const char *sid, enum lsa_SidType sid_name_use, const char *nt_name, const char *comment)
  65 {
  66         GROUP_MAP map;
  67
  68         if(!init_group_mapping()) {
  69                 DEBUG(0,("failed to initialize group mapping\n"));
  70                 return NT_STATUS_UNSUCCESSFUL;
  71         }
  72
  73         map.gid=gid;
  74         if (!string_to_sid(&map.sid, sid)) {
  75                 DEBUG(0, ("string_to_sid failed: %s", sid));
  76                 return NT_STATUS_UNSUCCESSFUL;
  77         }
  78
  79         map.sid_name_use=sid_name_use;
  80         fstrcpy(map.nt_name, nt_name);
  81         fstrcpy(map.comment, comment);
  82
  83         return pdb_add_group_mapping_entry(&map);
  84 }
  85
  86 static NTSTATUS alias_memberships(const DOM_SID *members, size_t num_members,
  87                                   DOM_SID **sids, size_t *num)
  88 {
  89         size_t i;
  90
  91         *num = 0;
  92         *sids = NULL;
  93
  94         for (i=0; i<num_members; i++) {
  95                 NTSTATUS status = backend->one_alias_membership(&members[i], sids, num);
  96                 if (!NT_STATUS_IS_OK(status))
  97                         return status;
  98         }
  99         return NT_STATUS_OK;
 100 }
 101
 102 struct aliasmem_closure {
 103         const DOM_SID *alias;
 104         DOM_SID **sids;
 105         size_t *num;
 106 };
 107
 108
 109
 110 /*
 111  *
 112  * High level functions
 113  * better to use them than the lower ones.
 114  *
 115  * we are checking if the group is in the mapping file
 116  * and if the group is an existing unix group
 117  *
 118  */
 119
 120 /* get a domain group from it's SID */
 121
 122 bool get_domain_group_from_sid(DOM_SID sid, GROUP_MAP *map)
 123 {
 124         struct group *grp;
 125         bool ret;
 126
 127         if(!init_group_mapping()) {
 128                 DEBUG(0,("failed to initialize group mapping\n"));
 129                 return(False);
 130         }
 131
 132         DEBUG(10, ("get_domain_group_from_sid\n"));
 133
 134         /* if the group is NOT in the database, it CAN NOT be a domain group */
 135
 136         become_root();
 137         ret = pdb_getgrsid(map, sid);
 138         unbecome_root();
 139
 140         /* special case check for rid 513 */
 141
 142         if ( !ret ) {
 143                 uint32 rid;
 144
 145                 sid_peek_rid( &sid, &rid );
 146
 147                 if ( rid == DOMAIN_GROUP_RID_USERS ) {
 148                         fstrcpy( map->nt_name, "None" );
 149                         fstrcpy( map->comment, "Ordinary Users" );
 150                         sid_copy( &map->sid, &sid );
 151                         map->sid_name_use = SID_NAME_DOM_GRP;
 152                         map->gid = (gid_t)-1;
 153
 154                         return True;
 155                 }
 156
 157                 return False;
 158         }
 159
 160         DEBUG(10, ("get_domain_group_from_sid: SID found in the TDB\n"));
 161
 162         /* if it's not a domain group, continue */
 163         if (map->sid_name_use!=SID_NAME_DOM_GRP) {
 164                 return False;
 165         }
 166
 167         DEBUG(10, ("get_domain_group_from_sid: SID is a domain group\n"));
 168
 169         if (map->gid==-1) {
 170                 return False;
 171         }
 172
 173         DEBUG(10, ("get_domain_group_from_sid: SID is mapped to gid:%lu\n",(unsigned long)map->gid));
 174
 175         grp = getgrgid(map->gid);
 176         if ( !grp ) {
 177                 DEBUG(10, ("get_domain_group_from_sid: gid DOESN'T exist in UNIX security\n"));
 178                 return False;
 179         }
 180
 181         DEBUG(10, ("get_domain_group_from_sid: gid exists in UNIX security\n"));
 182
 183         return True;
 184 }
 185
 186 /****************************************************************************
 187  Create a UNIX group on demand.
 188 ****************************************************************************/
 189
 190 int smb_create_group(const char *unix_group, gid_t *new_gid)
 191 {
 192         char *add_script = NULL;
 193         int     ret = -1;
 194         int     fd = 0;
 195
 196         *new_gid = 0;
 197
 198         /* defer to scripts */
 199
 200         if ( *lp_addgroup_script() ) {
 201                 TALLOC_CTX *ctx = talloc_tos();
 202
 203                 add_script = talloc_strdup(ctx,
 204                                         lp_addgroup_script());
 205                 if (!add_script) {
 206                         return -1;
 207                 }
 208                 add_script = talloc_string_sub(ctx,
 209                                 add_script, "%g", unix_group);
 210                 if (!add_script) {
 211                         return -1;
 212                 }
 213
 214                 ret = smbrun(add_script, &fd);
 215                 DEBUG(ret ? 0 : 3,("smb_create_group: Running the command `%s' gave %d\n",add_script,ret));
 216                 if (ret == 0) {
 217                         smb_nscd_flush_group_cache();
 218                 }
 219                 if (ret != 0)
 220                         return ret;
 221
 222                 if (fd != 0) {
 223                         fstring output;
 224
 225                         *new_gid = 0;
 226                         if (read(fd, output, sizeof(output)) > 0) {
 227                                 *new_gid = (gid_t)strtoul(output, NULL, 10);
 228                         }
 229
 230                         close(fd);
 231                 }
 232
 233         }
 234
 235         if (*new_gid == 0) {
 236                 struct group *grp = getgrnam(unix_group);
 237
 238                 if (grp != NULL)
 239                         *new_gid = grp->gr_gid;
 240         }
 241
 242         return ret;
 243 }
 244
 245 /****************************************************************************
 246  Delete a UNIX group on demand.
 247 ****************************************************************************/
 248
 249 int smb_delete_group(const char *unix_group)
 250 {
 251         char *del_script = NULL;
 252         int ret = -1;
 253
 254         /* defer to scripts */
 255
 256         if ( *lp_delgroup_script() ) {
 257                 TALLOC_CTX *ctx = talloc_tos();
 258
 259                 del_script = talloc_strdup(ctx,
 260                                 lp_delgroup_script());
 261                 if (!del_script) {
 262                         return -1;
 263                 }
 264                 del_script = talloc_string_sub(ctx,
 265                                 del_script, "%g", unix_group);
 266                 if (!del_script) {
 267                         return -1;
 268                 }
 269                 ret = smbrun(del_script,NULL);
 270                 DEBUG(ret ? 0 : 3,("smb_delete_group: Running the command `%s' gave %d\n",del_script,ret));
 271                 if (ret == 0) {
 272                         smb_nscd_flush_group_cache();
 273                 }
 274                 return ret;
 275         }
 276
 277         return -1;
 278 }
 279
 280 /****************************************************************************
 281  Set a user's primary UNIX group.
 282 ****************************************************************************/
 283
 284 int smb_set_primary_group(const char *unix_group, const char* unix_user)
 285 {
 286         char *add_script = NULL;
 287         int ret = -1;
 288
 289         /* defer to scripts */
 290
 291         if ( *lp_setprimarygroup_script() ) {
 292                 TALLOC_CTX *ctx = talloc_tos();
 293
 294                 add_script = talloc_strdup(ctx,
 295                                 lp_setprimarygroup_script());
 296                 if (!add_script) {
 297                         return -1;
 298                 }
 299                 add_script = talloc_all_string_sub(ctx,
 300                                         add_script,
 301                                         "%g",
 302                                         unix_group);
 303                 if (!add_script) {
 304                         return -1;
 305                 }
 306                 ret = smbrun(add_script,NULL);
 307                 flush_pwnam_cache();
 308                 DEBUG(ret ? 0 : 3,("smb_set_primary_group: "
 309                          "Running the command `%s' gave %d\n",add_script,ret));
 310                 if (ret == 0) {
 311                         smb_nscd_flush_group_cache();
 312                 }
 313                 return ret;
 314         }
 315
 316         return -1;
 317 }
 318
 319 /****************************************************************************
 320  Add a user to a UNIX group.
 321 ****************************************************************************/
 322
 323 int smb_add_user_group(const char *unix_group, const char *unix_user)
 324 {
 325         char *add_script = NULL;
 326         int ret = -1;
 327
 328         /* defer to scripts */
 329
 330         if ( *lp_addusertogroup_script() ) {
 331                 TALLOC_CTX *ctx = talloc_tos();
 332
 333                 add_script = talloc_strdup(ctx,
 334                                 lp_addusertogroup_script());
 335                 if (!add_script) {
 336                         return -1;
 337                 }
 338                 add_script = talloc_string_sub(ctx,
 339                                 add_script, "%g", unix_group);
 340                 if (!add_script) {
 341                         return -1;
 342                 }
 343                 add_script = talloc_string_sub(ctx,
 344                                 add_script, "%u", unix_user);
 345                 if (!add_script) {
 346                         return -1;
 347                 }
 348                 ret = smbrun(add_script,NULL);
 349                 DEBUG(ret ? 0 : 3,("smb_add_user_group: Running the command `%s' gave %d\n",add_script,ret));
 350                 if (ret == 0) {
 351                         smb_nscd_flush_group_cache();
 352                 }
 353                 return ret;
 354         }
 355
 356         return -1;
 357 }
 358
 359 /****************************************************************************
 360  Delete a user from a UNIX group
 361 ****************************************************************************/
 362
 363 int smb_delete_user_group(const char *unix_group, const char *unix_user)
 364 {
 365         char *del_script = NULL;
 366         int ret = -1;
 367
 368         /* defer to scripts */
 369
 370         if ( *lp_deluserfromgroup_script() ) {
 371                 TALLOC_CTX *ctx = talloc_tos();
 372
 373                 del_script = talloc_strdup(ctx,
 374                                 lp_deluserfromgroup_script());
 375                 if (!del_script) {
 376                         return -1;
 377                 }
 378                 del_script = talloc_string_sub(ctx,
 379                                 del_script, "%g", unix_group);
 380                 if (!del_script) {
 381                         return -1;
 382                 }
 383                 del_script = talloc_string_sub(ctx,
 384                                 del_script, "%u", unix_user);
 385                 if (!del_script) {
 386                         return -1;
 387                 }
 388                 ret = smbrun(del_script,NULL);
 389                 DEBUG(ret ? 0 : 3,("smb_delete_user_group: Running the command `%s' gave %d\n",del_script,ret));
 390                 if (ret == 0) {
 391                         smb_nscd_flush_group_cache();
 392                 }
 393                 return ret;
 394         }
 395
 396         return -1;
 397 }
 398
 399
 400 NTSTATUS pdb_default_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
 401                                  DOM_SID sid)
 402 {
 403         if (!init_group_mapping()) {
 404                 DEBUG(0,("failed to initialize group mapping\n"));
 405                 return NT_STATUS_UNSUCCESSFUL;
 406         }
 407         return backend->get_group_map_from_sid(sid, map) ?
 408                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 409 }
 410
 411 NTSTATUS pdb_default_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
 412                                  gid_t gid)
 413 {
 414         if (!init_group_mapping()) {
 415                 DEBUG(0,("failed to initialize group mapping\n"));
 416                 return NT_STATUS_UNSUCCESSFUL;
 417         }
 418         return backend->get_group_map_from_gid(gid, map) ?
 419                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 420 }
 421
 422 NTSTATUS pdb_default_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
 423                                  const char *name)
 424 {
 425         if (!init_group_mapping()) {
 426                 DEBUG(0,("failed to initialize group mapping\n"));
 427                 return NT_STATUS_UNSUCCESSFUL;
 428         }
 429         return backend->get_group_map_from_ntname(name, map) ?
 430                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 431 }
 432
 433 NTSTATUS pdb_default_add_group_mapping_entry(struct pdb_methods *methods,
 434                                                 GROUP_MAP *map)
 435 {
 436         if (!init_group_mapping()) {
 437                 DEBUG(0,("failed to initialize group mapping\n"));
 438                 return NT_STATUS_UNSUCCESSFUL;
 439         }
 440         return backend->add_mapping_entry(map, TDB_INSERT) ?
 441                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 442 }
 443
 444 NTSTATUS pdb_default_update_group_mapping_entry(struct pdb_methods *methods,
 445                                                    GROUP_MAP *map)
 446 {
 447         if (!init_group_mapping()) {
 448                 DEBUG(0,("failed to initialize group mapping\n"));
 449                 return NT_STATUS_UNSUCCESSFUL;
 450         }
 451         return backend->add_mapping_entry(map, TDB_REPLACE) ?
 452                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 453 }
 454
 455 NTSTATUS pdb_default_delete_group_mapping_entry(struct pdb_methods *methods,
 456                                                    DOM_SID sid)
 457 {
 458         if (!init_group_mapping()) {
 459                 DEBUG(0,("failed to initialize group mapping\n"));
 460                 return NT_STATUS_UNSUCCESSFUL;
 461         }
 462         return backend->group_map_remove(&sid) ?
 463                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 464 }
 465
 466 NTSTATUS pdb_default_enum_group_mapping(struct pdb_methods *methods,
 467                                            const DOM_SID *sid, enum lsa_SidType sid_name_use,
 468                                            GROUP_MAP **pp_rmap, size_t *p_num_entries,
 469                                            bool unix_only)
 470 {
 471         if (!init_group_mapping()) {
 472                 DEBUG(0,("failed to initialize group mapping\n"));
 473                 return NT_STATUS_UNSUCCESSFUL;
 474         }
 475         return backend->enum_group_mapping(sid, sid_name_use, pp_rmap, p_num_entries, unix_only) ?
 476                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 477 }
 478
 479 NTSTATUS pdb_default_create_alias(struct pdb_methods *methods,
 480                                   const char *name, uint32 *rid)
 481 {
 482         DOM_SID sid;
 483         enum lsa_SidType type;
 484         uint32 new_rid;
 485         gid_t gid;
 486         bool exists;
 487         GROUP_MAP map;
 488         TALLOC_CTX *mem_ctx;
 489         NTSTATUS status;
 490
 491         DEBUG(10, ("Trying to create alias %s\n", name));
 492
 493         mem_ctx = talloc_new(NULL);
 494         if (mem_ctx == NULL) {
 495                 return NT_STATUS_NO_MEMORY;
 496         }
 497
 498         exists = lookup_name(mem_ctx, name, LOOKUP_NAME_LOCAL,
 499                              NULL, NULL, &sid, &type);
 500         TALLOC_FREE(mem_ctx);
 501
 502         if (exists) {
 503                 return NT_STATUS_ALIAS_EXISTS;
 504         }
 505
 506         if (!winbind_allocate_gid(&gid)) {
 507                 DEBUG(3, ("Could not get a gid out of winbind\n"));
 508                 return NT_STATUS_ACCESS_DENIED;
 509         }
 510
 511         if (!pdb_new_rid(&new_rid)) {
 512                 DEBUG(0, ("Could not allocate a RID -- wasted a gid :-(\n"));
 513                 return NT_STATUS_ACCESS_DENIED;
 514         }
 515
 516         DEBUG(10, ("Creating alias %s with gid %d and rid %d\n",
 517                    name, gid, new_rid));
 518
 519         sid_copy(&sid, get_global_sam_sid());
 520         sid_append_rid(&sid, new_rid);
 521
 522         map.gid = gid;
 523         sid_copy(&map.sid, &sid);
 524         map.sid_name_use = SID_NAME_ALIAS;
 525         fstrcpy(map.nt_name, name);
 526         fstrcpy(map.comment, "");
 527
 528         status = pdb_add_group_mapping_entry(&map);
 529
 530         if (!NT_STATUS_IS_OK(status)) {
 531                 DEBUG(0, ("Could not add group mapping entry for alias %s "
 532                           "(%s)\n", name, nt_errstr(status)));
 533                 return status;
 534         }
 535
 536         *rid = new_rid;
 537
 538         return NT_STATUS_OK;
 539 }
 540
 541 NTSTATUS pdb_default_delete_alias(struct pdb_methods *methods,
 542                                   const DOM_SID *sid)
 543 {
 544         return pdb_delete_group_mapping_entry(*sid);
 545 }
 546
 547 NTSTATUS pdb_default_get_aliasinfo(struct pdb_methods *methods,
 548                                    const DOM_SID *sid,
 549                                    struct acct_info *info)
 550 {
 551         GROUP_MAP map;
 552
 553         if (!pdb_getgrsid(&map, *sid))
 554                 return NT_STATUS_NO_SUCH_ALIAS;
 555
 556         if ((map.sid_name_use != SID_NAME_ALIAS) &&
 557             (map.sid_name_use != SID_NAME_WKN_GRP)) {
 558                 DEBUG(2, ("%s is a %s, expected an alias\n",
 559                           sid_string_dbg(sid),
 560                           sid_type_lookup(map.sid_name_use)));
 561                 return NT_STATUS_NO_SUCH_ALIAS;
 562         }
 563
 564         fstrcpy(info->acct_name, map.nt_name);
 565         fstrcpy(info->acct_desc, map.comment);
 566         sid_peek_rid(&map.sid, &info->rid);
 567         return NT_STATUS_OK;
 568 }
 569
 570 NTSTATUS pdb_default_set_aliasinfo(struct pdb_methods *methods,
 571                                    const DOM_SID *sid,
 572                                    struct acct_info *info)
 573 {
 574         GROUP_MAP map;
 575
 576         if (!pdb_getgrsid(&map, *sid))
 577                 return NT_STATUS_NO_SUCH_ALIAS;
 578
 579         fstrcpy(map.nt_name, info->acct_name);
 580         fstrcpy(map.comment, info->acct_desc);
 581
 582         return pdb_update_group_mapping_entry(&map);
 583 }
 584
 585 NTSTATUS pdb_default_add_aliasmem(struct pdb_methods *methods,
 586                                   const DOM_SID *alias, const DOM_SID *member)
 587 {
 588         if (!init_group_mapping()) {
 589                 DEBUG(0,("failed to initialize group mapping\n"));
 590                 return NT_STATUS_UNSUCCESSFUL;
 591         }
 592         return backend->add_aliasmem(alias, member);
 593 }
 594
 595 NTSTATUS pdb_default_del_aliasmem(struct pdb_methods *methods,
 596                                   const DOM_SID *alias, const DOM_SID *member)
 597 {
 598         if (!init_group_mapping()) {
 599                 DEBUG(0,("failed to initialize group mapping\n"));
 600                 return NT_STATUS_UNSUCCESSFUL;
 601         }
 602         return backend->del_aliasmem(alias, member);
 603 }
 604
 605 NTSTATUS pdb_default_enum_aliasmem(struct pdb_methods *methods,
 606                                    const DOM_SID *alias, DOM_SID **pp_members,
 607                                    size_t *p_num_members)
 608 {
 609         if (!init_group_mapping()) {
 610                 DEBUG(0,("failed to initialize group mapping\n"));
 611                 return NT_STATUS_UNSUCCESSFUL;
 612         }
 613         return backend->enum_aliasmem(alias, pp_members, p_num_members);
 614 }
 615
 616 NTSTATUS pdb_default_alias_memberships(struct pdb_methods *methods,
 617                                        TALLOC_CTX *mem_ctx,
 618                                        const DOM_SID *domain_sid,
 619                                        const DOM_SID *members,
 620                                        size_t num_members,
 621                                        uint32 **pp_alias_rids,
 622                                        size_t *p_num_alias_rids)
 623 {
 624         DOM_SID *alias_sids;
 625         size_t i, num_alias_sids;
 626         NTSTATUS result;
 627
 628         if (!init_group_mapping()) {
 629                 DEBUG(0,("failed to initialize group mapping\n"));
 630                 return NT_STATUS_UNSUCCESSFUL;
 631         }
 632
 633         alias_sids = NULL;
 634         num_alias_sids = 0;
 635
 636         result = alias_memberships(members, num_members,
 637                                    &alias_sids, &num_alias_sids);
 638
 639         if (!NT_STATUS_IS_OK(result))
 640                 return result;
 641
 642         *p_num_alias_rids = 0;
 643
 644         if (num_alias_sids == 0) {
 645                 TALLOC_FREE(alias_sids);
 646                 return NT_STATUS_OK;
 647         }
 648
 649         *pp_alias_rids = TALLOC_ARRAY(mem_ctx, uint32, num_alias_sids);
 650         if (*pp_alias_rids == NULL)
 651                 return NT_STATUS_NO_MEMORY;
 652
 653         for (i=0; i<num_alias_sids; i++) {
 654                 if (!sid_peek_check_rid(domain_sid, &alias_sids[i],
 655                                         &(*pp_alias_rids)[*p_num_alias_rids]))
 656                         continue;
 657                 *p_num_alias_rids += 1;
 658         }
 659
 660         TALLOC_FREE(alias_sids);
 661
 662         return NT_STATUS_OK;
 663 }
 664
 665 /**********************************************************************
 666  no ops for passdb backends that don't implement group mapping
 667  *********************************************************************/
 668
 669 NTSTATUS pdb_nop_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
 670                                  DOM_SID sid)
 671 {
 672         return NT_STATUS_UNSUCCESSFUL;
 673 }
 674
 675 NTSTATUS pdb_nop_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
 676                                  gid_t gid)
 677 {
 678         return NT_STATUS_UNSUCCESSFUL;
 679 }
 680
 681 NTSTATUS pdb_nop_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
 682                                  const char *name)
 683 {
 684         return NT_STATUS_UNSUCCESSFUL;
 685 }
 686
 687 NTSTATUS pdb_nop_add_group_mapping_entry(struct pdb_methods *methods,
 688                                                 GROUP_MAP *map)
 689 {
 690         return NT_STATUS_UNSUCCESSFUL;
 691 }
 692
 693 NTSTATUS pdb_nop_update_group_mapping_entry(struct pdb_methods *methods,
 694                                                    GROUP_MAP *map)
 695 {
 696         return NT_STATUS_UNSUCCESSFUL;
 697 }
 698
 699 NTSTATUS pdb_nop_delete_group_mapping_entry(struct pdb_methods *methods,
 700                                                    DOM_SID sid)
 701 {
 702         return NT_STATUS_UNSUCCESSFUL;
 703 }
 704
 705 NTSTATUS pdb_nop_enum_group_mapping(struct pdb_methods *methods,
 706                                            enum lsa_SidType sid_name_use,
 707                                            GROUP_MAP **rmap, size_t *num_entries,
 708                                            bool unix_only)
 709 {
 710         return NT_STATUS_UNSUCCESSFUL;
 711 }
 712
 713 /****************************************************************************
 714  These need to be redirected through pdb_interface.c
 715 ****************************************************************************/
 716 bool pdb_get_dom_grp_info(const DOM_SID *sid, struct acct_info *info)
 717 {
 718         GROUP_MAP map;
 719         bool res;
 720
 721         become_root();
 722         res = get_domain_group_from_sid(*sid, &map);
 723         unbecome_root();
 724
 725         if (!res)
 726                 return False;
 727
 728         fstrcpy(info->acct_name, map.nt_name);
 729         fstrcpy(info->acct_desc, map.comment);
 730         sid_peek_rid(sid, &info->rid);
 731         return True;
 732 }
 733
 734 bool pdb_set_dom_grp_info(const DOM_SID *sid, const struct acct_info *info)
 735 {
 736         GROUP_MAP map;
 737
 738         if (!get_domain_group_from_sid(*sid, &map))
 739                 return False;
 740
 741         fstrcpy(map.nt_name, info->acct_name);
 742         fstrcpy(map.comment, info->acct_desc);
 743
 744         return NT_STATUS_IS_OK(pdb_update_group_mapping_entry(&map));
 745 }
 746
 747 /********************************************************************
 748  Really just intended to be called by smbd
 749 ********************************************************************/
 750
 751 NTSTATUS pdb_create_builtin_alias(uint32 rid)
 752 {
 753         DOM_SID sid;
 754         enum lsa_SidType type;
 755         gid_t gid;
 756         GROUP_MAP map;
 757         TALLOC_CTX *mem_ctx;
 758         NTSTATUS status;
 759         const char *name = NULL;
 760         fstring groupname;
 761
 762         DEBUG(10, ("Trying to create builtin alias %d\n", rid));
 763
 764         if ( !sid_compose( &sid, &global_sid_Builtin, rid ) ) {
 765                 return NT_STATUS_NO_SUCH_ALIAS;
 766         }
 767
 768         if ( (mem_ctx = talloc_new(NULL)) == NULL ) {
 769                 return NT_STATUS_NO_MEMORY;
 770         }
 771
 772         if ( !lookup_sid(mem_ctx, &sid, NULL, &name, &type) ) {
 773                 TALLOC_FREE( mem_ctx );
 774                 return NT_STATUS_NO_SUCH_ALIAS;
 775         }
 776
 777         /* validate RID so copy the name and move on */
 778
 779         fstrcpy( groupname, name );
 780         TALLOC_FREE( mem_ctx );
 781
 782         if (!winbind_allocate_gid(&gid)) {
 783                 DEBUG(3, ("pdb_create_builtin_alias: Could not get a gid out of winbind\n"));
 784                 return NT_STATUS_ACCESS_DENIED;
 785         }
 786
 787         DEBUG(10,("Creating alias %s with gid %d\n", groupname, gid));
 788
 789         map.gid = gid;
 790         sid_copy(&map.sid, &sid);
 791         map.sid_name_use = SID_NAME_ALIAS;
 792         fstrcpy(map.nt_name, groupname);
 793         fstrcpy(map.comment, "");
 794
 795         status = pdb_add_group_mapping_entry(&map);
 796
 797         if (!NT_STATUS_IS_OK(status)) {
 798                 DEBUG(0, ("pdb_create_builtin_alias: Could not add group mapping entry for alias %d "
 799                           "(%s)\n", rid, nt_errstr(status)));
 800         }
 801
 802         return status;
 803 }
 804
 805