source3/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         if (backend != NULL) {
  34                 /* already initialised */
  35                 return True;
  36         }
  37
  38         backend = groupdb_tdb_init();
  39
  40         return backend != NULL;
  41 }
  42
  43 /****************************************************************************
  44 initialise first time the mapping list
  45 ****************************************************************************/
  46 NTSTATUS add_initial_entry(gid_t gid, const char *sid, enum lsa_SidType sid_name_use, const char *nt_name, const char *comment)
  47 {
  48         GROUP_MAP map;
  49
  50         if(!init_group_mapping()) {
  51                 DEBUG(0,("failed to initialize group mapping\n"));
  52                 return NT_STATUS_UNSUCCESSFUL;
  53         }
  54
  55         map.gid=gid;
  56         if (!string_to_sid(&map.sid, sid)) {
  57                 DEBUG(0, ("string_to_sid failed: %s", sid));
  58                 return NT_STATUS_UNSUCCESSFUL;
  59         }
  60
  61         map.sid_name_use=sid_name_use;
  62         fstrcpy(map.nt_name, nt_name);
  63         fstrcpy(map.comment, comment);
  64
  65         return pdb_add_group_mapping_entry(&map);
  66 }
  67
  68 static NTSTATUS alias_memberships(const DOM_SID *members, size_t num_members,
  69                                   DOM_SID **sids, size_t *num)
  70 {
  71         size_t i;
  72
  73         *num = 0;
  74         *sids = NULL;
  75
  76         for (i=0; i<num_members; i++) {
  77                 NTSTATUS status = backend->one_alias_membership(&members[i], sids, num);
  78                 if (!NT_STATUS_IS_OK(status))
  79                         return status;
  80         }
  81         return NT_STATUS_OK;
  82 }
  83
  84 struct aliasmem_closure {
  85         const DOM_SID *alias;
  86         DOM_SID **sids;
  87         size_t *num;
  88 };
  89
  90
  91
  92 /*
  93  *
  94  * High level functions
  95  * better to use them than the lower ones.
  96  *
  97  * we are checking if the group is in the mapping file
  98  * and if the group is an existing unix group
  99  *
 100  */
 101
 102 /* get a domain group from it's SID */
 103
 104 bool get_domain_group_from_sid(DOM_SID sid, GROUP_MAP *map)
 105 {
 106         struct group *grp;
 107         bool ret;
 108
 109         if(!init_group_mapping()) {
 110                 DEBUG(0,("failed to initialize group mapping\n"));
 111                 return(False);
 112         }
 113
 114         DEBUG(10, ("get_domain_group_from_sid\n"));
 115
 116         /* if the group is NOT in the database, it CAN NOT be a domain group */
 117
 118         become_root();
 119         ret = pdb_getgrsid(map, sid);
 120         unbecome_root();
 121
 122         /* special case check for rid 513 */
 123
 124         if ( !ret ) {
 125                 uint32 rid;
 126
 127                 sid_peek_rid( &sid, &rid );
 128
 129                 if ( rid == DOMAIN_GROUP_RID_USERS ) {
 130                         fstrcpy( map->nt_name, "None" );
 131                         fstrcpy( map->comment, "Ordinary Users" );
 132                         sid_copy( &map->sid, &sid );
 133                         map->sid_name_use = SID_NAME_DOM_GRP;
 134                         map->gid = (gid_t)-1;
 135
 136                         return True;
 137                 }
 138
 139                 return False;
 140         }
 141
 142         DEBUG(10, ("get_domain_group_from_sid: SID found in the TDB\n"));
 143
 144         /* if it's not a domain group, continue */
 145         if (map->sid_name_use!=SID_NAME_DOM_GRP) {
 146                 return False;
 147         }
 148
 149         DEBUG(10, ("get_domain_group_from_sid: SID is a domain group\n"));
 150
 151         if (map->gid==-1) {
 152                 return False;
 153         }
 154
 155         DEBUG(10, ("get_domain_group_from_sid: SID is mapped to gid:%lu\n",(unsigned long)map->gid));
 156
 157         grp = getgrgid(map->gid);
 158         if ( !grp ) {
 159                 DEBUG(10, ("get_domain_group_from_sid: gid DOESN'T exist in UNIX security\n"));
 160                 return False;
 161         }
 162
 163         DEBUG(10, ("get_domain_group_from_sid: gid exists in UNIX security\n"));
 164
 165         return True;
 166 }
 167
 168 /****************************************************************************
 169  Create a UNIX group on demand.
 170 ****************************************************************************/
 171
 172 int smb_create_group(const char *unix_group, gid_t *new_gid)
 173 {
 174         char *add_script = NULL;
 175         int     ret = -1;
 176         int     fd = 0;
 177
 178         *new_gid = 0;
 179
 180         /* defer to scripts */
 181
 182         if ( *lp_addgroup_script() ) {
 183                 TALLOC_CTX *ctx = talloc_tos();
 184
 185                 add_script = talloc_strdup(ctx,
 186                                         lp_addgroup_script());
 187                 if (!add_script) {
 188                         return -1;
 189                 }
 190                 add_script = talloc_string_sub(ctx,
 191                                 add_script, "%g", unix_group);
 192                 if (!add_script) {
 193                         return -1;
 194                 }
 195
 196                 ret = smbrun(add_script, &fd);
 197                 DEBUG(ret ? 0 : 3,("smb_create_group: Running the command `%s' gave %d\n",add_script,ret));
 198                 if (ret == 0) {
 199                         smb_nscd_flush_group_cache();
 200                 }
 201                 if (ret != 0)
 202                         return ret;
 203
 204                 if (fd != 0) {
 205                         fstring output;
 206
 207                         *new_gid = 0;
 208                         if (read(fd, output, sizeof(output)) > 0) {
 209                                 *new_gid = (gid_t)strtoul(output, NULL, 10);
 210                         }
 211
 212                         close(fd);
 213                 }
 214
 215         }
 216
 217         if (*new_gid == 0) {
 218                 struct group *grp = getgrnam(unix_group);
 219
 220                 if (grp != NULL)
 221                         *new_gid = grp->gr_gid;
 222         }
 223
 224         return ret;
 225 }
 226
 227 /****************************************************************************
 228  Delete a UNIX group on demand.
 229 ****************************************************************************/
 230
 231 int smb_delete_group(const char *unix_group)
 232 {
 233         char *del_script = NULL;
 234         int ret = -1;
 235
 236         /* defer to scripts */
 237
 238         if ( *lp_delgroup_script() ) {
 239                 TALLOC_CTX *ctx = talloc_tos();
 240
 241                 del_script = talloc_strdup(ctx,
 242                                 lp_delgroup_script());
 243                 if (!del_script) {
 244                         return -1;
 245                 }
 246                 del_script = talloc_string_sub(ctx,
 247                                 del_script, "%g", unix_group);
 248                 if (!del_script) {
 249                         return -1;
 250                 }
 251                 ret = smbrun(del_script,NULL);
 252                 DEBUG(ret ? 0 : 3,("smb_delete_group: Running the command `%s' gave %d\n",del_script,ret));
 253                 if (ret == 0) {
 254                         smb_nscd_flush_group_cache();
 255                 }
 256                 return ret;
 257         }
 258
 259         return -1;
 260 }
 261
 262 /****************************************************************************
 263  Set a user's primary UNIX group.
 264 ****************************************************************************/
 265
 266 int smb_set_primary_group(const char *unix_group, const char* unix_user)
 267 {
 268         char *add_script = NULL;
 269         int ret = -1;
 270
 271         /* defer to scripts */
 272
 273         if ( *lp_setprimarygroup_script() ) {
 274                 TALLOC_CTX *ctx = talloc_tos();
 275
 276                 add_script = talloc_strdup(ctx,
 277                                 lp_setprimarygroup_script());
 278                 if (!add_script) {
 279                         return -1;
 280                 }
 281                 add_script = talloc_all_string_sub(ctx,
 282                                 add_script, "%g", unix_group);
 283                 if (!add_script) {
 284                         return -1;
 285                 }
 286                 add_script = talloc_string_sub(ctx,
 287                                 add_script, "%u", unix_user);
 288                 if (!add_script) {
 289                         return -1;
 290                 }
 291                 ret = smbrun(add_script,NULL);
 292                 flush_pwnam_cache();
 293                 DEBUG(ret ? 0 : 3,("smb_set_primary_group: "
 294                          "Running the command `%s' gave %d\n",add_script,ret));
 295                 if (ret == 0) {
 296                         smb_nscd_flush_group_cache();
 297                 }
 298                 return ret;
 299         }
 300
 301         return -1;
 302 }
 303
 304 /****************************************************************************
 305  Add a user to a UNIX group.
 306 ****************************************************************************/
 307
 308 int smb_add_user_group(const char *unix_group, const char *unix_user)
 309 {
 310         char *add_script = NULL;
 311         int ret = -1;
 312
 313         /* defer to scripts */
 314
 315         if ( *lp_addusertogroup_script() ) {
 316                 TALLOC_CTX *ctx = talloc_tos();
 317
 318                 add_script = talloc_strdup(ctx,
 319                                 lp_addusertogroup_script());
 320                 if (!add_script) {
 321                         return -1;
 322                 }
 323                 add_script = talloc_string_sub(ctx,
 324                                 add_script, "%g", unix_group);
 325                 if (!add_script) {
 326                         return -1;
 327                 }
 328                 add_script = talloc_string_sub(ctx,
 329                                 add_script, "%u", unix_user);
 330                 if (!add_script) {
 331                         return -1;
 332                 }
 333                 ret = smbrun(add_script,NULL);
 334                 DEBUG(ret ? 0 : 3,("smb_add_user_group: Running the command `%s' gave %d\n",add_script,ret));
 335                 if (ret == 0) {
 336                         smb_nscd_flush_group_cache();
 337                 }
 338                 return ret;
 339         }
 340
 341         return -1;
 342 }
 343
 344 /****************************************************************************
 345  Delete a user from a UNIX group
 346 ****************************************************************************/
 347
 348 int smb_delete_user_group(const char *unix_group, const char *unix_user)
 349 {
 350         char *del_script = NULL;
 351         int ret = -1;
 352
 353         /* defer to scripts */
 354
 355         if ( *lp_deluserfromgroup_script() ) {
 356                 TALLOC_CTX *ctx = talloc_tos();
 357
 358                 del_script = talloc_strdup(ctx,
 359                                 lp_deluserfromgroup_script());
 360                 if (!del_script) {
 361                         return -1;
 362                 }
 363                 del_script = talloc_string_sub(ctx,
 364                                 del_script, "%g", unix_group);
 365                 if (!del_script) {
 366                         return -1;
 367                 }
 368                 del_script = talloc_string_sub(ctx,
 369                                 del_script, "%u", unix_user);
 370                 if (!del_script) {
 371                         return -1;
 372                 }
 373                 ret = smbrun(del_script,NULL);
 374                 DEBUG(ret ? 0 : 3,("smb_delete_user_group: Running the command `%s' gave %d\n",del_script,ret));
 375                 if (ret == 0) {
 376                         smb_nscd_flush_group_cache();
 377                 }
 378                 return ret;
 379         }
 380
 381         return -1;
 382 }
 383
 384
 385 NTSTATUS pdb_default_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
 386                                  DOM_SID sid)
 387 {
 388         if (!init_group_mapping()) {
 389                 DEBUG(0,("failed to initialize group mapping\n"));
 390                 return NT_STATUS_UNSUCCESSFUL;
 391         }
 392         return backend->get_group_map_from_sid(sid, map) ?
 393                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 394 }
 395
 396 NTSTATUS pdb_default_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
 397                                  gid_t gid)
 398 {
 399         if (!init_group_mapping()) {
 400                 DEBUG(0,("failed to initialize group mapping\n"));
 401                 return NT_STATUS_UNSUCCESSFUL;
 402         }
 403         return backend->get_group_map_from_gid(gid, map) ?
 404                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 405 }
 406
 407 NTSTATUS pdb_default_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
 408                                  const char *name)
 409 {
 410         if (!init_group_mapping()) {
 411                 DEBUG(0,("failed to initialize group mapping\n"));
 412                 return NT_STATUS_UNSUCCESSFUL;
 413         }
 414         return backend->get_group_map_from_ntname(name, map) ?
 415                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 416 }
 417
 418 NTSTATUS pdb_default_add_group_mapping_entry(struct pdb_methods *methods,
 419                                                 GROUP_MAP *map)
 420 {
 421         if (!init_group_mapping()) {
 422                 DEBUG(0,("failed to initialize group mapping\n"));
 423                 return NT_STATUS_UNSUCCESSFUL;
 424         }
 425         return backend->add_mapping_entry(map, TDB_INSERT) ?
 426                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 427 }
 428
 429 NTSTATUS pdb_default_update_group_mapping_entry(struct pdb_methods *methods,
 430                                                    GROUP_MAP *map)
 431 {
 432         if (!init_group_mapping()) {
 433                 DEBUG(0,("failed to initialize group mapping\n"));
 434                 return NT_STATUS_UNSUCCESSFUL;
 435         }
 436         return backend->add_mapping_entry(map, TDB_REPLACE) ?
 437                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 438 }
 439
 440 NTSTATUS pdb_default_delete_group_mapping_entry(struct pdb_methods *methods,
 441                                                    DOM_SID sid)
 442 {
 443         if (!init_group_mapping()) {
 444                 DEBUG(0,("failed to initialize group mapping\n"));
 445                 return NT_STATUS_UNSUCCESSFUL;
 446         }
 447         return backend->group_map_remove(&sid) ?
 448                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 449 }
 450
 451 NTSTATUS pdb_default_enum_group_mapping(struct pdb_methods *methods,
 452                                            const DOM_SID *sid, enum lsa_SidType sid_name_use,
 453                                            GROUP_MAP **pp_rmap, size_t *p_num_entries,
 454                                            bool unix_only)
 455 {
 456         if (!init_group_mapping()) {
 457                 DEBUG(0,("failed to initialize group mapping\n"));
 458                 return NT_STATUS_UNSUCCESSFUL;
 459         }
 460         return backend->enum_group_mapping(sid, sid_name_use, pp_rmap, p_num_entries, unix_only) ?
 461                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 462 }
 463
 464 NTSTATUS pdb_default_create_alias(struct pdb_methods *methods,
 465                                   const char *name, uint32 *rid)
 466 {
 467         DOM_SID sid;
 468         enum lsa_SidType type;
 469         uint32 new_rid;
 470         gid_t gid;
 471         bool exists;
 472         GROUP_MAP map;
 473         TALLOC_CTX *mem_ctx;
 474         NTSTATUS status;
 475
 476         DEBUG(10, ("Trying to create alias %s\n", name));
 477
 478         mem_ctx = talloc_new(NULL);
 479         if (mem_ctx == NULL) {
 480                 return NT_STATUS_NO_MEMORY;
 481         }
 482
 483         exists = lookup_name(mem_ctx, name, LOOKUP_NAME_LOCAL,
 484                              NULL, NULL, &sid, &type);
 485         TALLOC_FREE(mem_ctx);
 486
 487         if (exists) {
 488                 return NT_STATUS_ALIAS_EXISTS;
 489         }
 490
 491         if (!winbind_allocate_gid(&gid)) {
 492                 DEBUG(3, ("Could not get a gid out of winbind\n"));
 493                 return NT_STATUS_ACCESS_DENIED;
 494         }
 495
 496         if (!pdb_new_rid(&new_rid)) {
 497                 DEBUG(0, ("Could not allocate a RID -- wasted a gid :-(\n"));
 498                 return NT_STATUS_ACCESS_DENIED;
 499         }
 500
 501         DEBUG(10, ("Creating alias %s with gid %u and rid %u\n",
 502                    name, (unsigned int)gid, (unsigned int)new_rid));
 503
 504         sid_compose(&sid, get_global_sam_sid(), new_rid);
 505
 506         map.gid = gid;
 507         sid_copy(&map.sid, &sid);
 508         map.sid_name_use = SID_NAME_ALIAS;
 509         fstrcpy(map.nt_name, name);
 510         fstrcpy(map.comment, "");
 511
 512         status = pdb_add_group_mapping_entry(&map);
 513
 514         if (!NT_STATUS_IS_OK(status)) {
 515                 DEBUG(0, ("Could not add group mapping entry for alias %s "
 516                           "(%s)\n", name, nt_errstr(status)));
 517                 return status;
 518         }
 519
 520         *rid = new_rid;
 521
 522         return NT_STATUS_OK;
 523 }
 524
 525 NTSTATUS pdb_default_delete_alias(struct pdb_methods *methods,
 526                                   const DOM_SID *sid)
 527 {
 528         return pdb_delete_group_mapping_entry(*sid);
 529 }
 530
 531 NTSTATUS pdb_default_get_aliasinfo(struct pdb_methods *methods,
 532                                    const DOM_SID *sid,
 533                                    struct acct_info *info)
 534 {
 535         GROUP_MAP map;
 536
 537         if (!pdb_getgrsid(&map, *sid))
 538                 return NT_STATUS_NO_SUCH_ALIAS;
 539
 540         if ((map.sid_name_use != SID_NAME_ALIAS) &&
 541             (map.sid_name_use != SID_NAME_WKN_GRP)) {
 542                 DEBUG(2, ("%s is a %s, expected an alias\n",
 543                           sid_string_dbg(sid),
 544                           sid_type_lookup(map.sid_name_use)));
 545                 return NT_STATUS_NO_SUCH_ALIAS;
 546         }
 547
 548         fstrcpy(info->acct_name, map.nt_name);
 549         fstrcpy(info->acct_desc, map.comment);
 550         sid_peek_rid(&map.sid, &info->rid);
 551         return NT_STATUS_OK;
 552 }
 553
 554 NTSTATUS pdb_default_set_aliasinfo(struct pdb_methods *methods,
 555                                    const DOM_SID *sid,
 556                                    struct acct_info *info)
 557 {
 558         GROUP_MAP map;
 559
 560         if (!pdb_getgrsid(&map, *sid))
 561                 return NT_STATUS_NO_SUCH_ALIAS;
 562
 563         fstrcpy(map.nt_name, info->acct_name);
 564         fstrcpy(map.comment, info->acct_desc);
 565
 566         return pdb_update_group_mapping_entry(&map);
 567 }
 568
 569 NTSTATUS pdb_default_add_aliasmem(struct pdb_methods *methods,
 570                                   const DOM_SID *alias, const DOM_SID *member)
 571 {
 572         if (!init_group_mapping()) {
 573                 DEBUG(0,("failed to initialize group mapping\n"));
 574                 return NT_STATUS_UNSUCCESSFUL;
 575         }
 576         return backend->add_aliasmem(alias, member);
 577 }
 578
 579 NTSTATUS pdb_default_del_aliasmem(struct pdb_methods *methods,
 580                                   const DOM_SID *alias, const DOM_SID *member)
 581 {
 582         if (!init_group_mapping()) {
 583                 DEBUG(0,("failed to initialize group mapping\n"));
 584                 return NT_STATUS_UNSUCCESSFUL;
 585         }
 586         return backend->del_aliasmem(alias, member);
 587 }
 588
 589 NTSTATUS pdb_default_enum_aliasmem(struct pdb_methods *methods,
 590                                    const DOM_SID *alias, TALLOC_CTX *mem_ctx,
 591                                    DOM_SID **pp_members, size_t *p_num_members)
 592 {
 593         if (!init_group_mapping()) {
 594                 DEBUG(0,("failed to initialize group mapping\n"));
 595                 return NT_STATUS_UNSUCCESSFUL;
 596         }
 597         return backend->enum_aliasmem(alias, mem_ctx, pp_members,
 598                                       p_num_members);
 599 }
 600
 601 NTSTATUS pdb_default_alias_memberships(struct pdb_methods *methods,
 602                                        TALLOC_CTX *mem_ctx,
 603                                        const DOM_SID *domain_sid,
 604                                        const DOM_SID *members,
 605                                        size_t num_members,
 606                                        uint32 **pp_alias_rids,
 607                                        size_t *p_num_alias_rids)
 608 {
 609         DOM_SID *alias_sids;
 610         size_t i, num_alias_sids;
 611         NTSTATUS result;
 612
 613         if (!init_group_mapping()) {
 614                 DEBUG(0,("failed to initialize group mapping\n"));
 615                 return NT_STATUS_UNSUCCESSFUL;
 616         }
 617
 618         alias_sids = NULL;
 619         num_alias_sids = 0;
 620
 621         result = alias_memberships(members, num_members,
 622                                    &alias_sids, &num_alias_sids);
 623
 624         if (!NT_STATUS_IS_OK(result))
 625                 return result;
 626
 627         *p_num_alias_rids = 0;
 628
 629         if (num_alias_sids == 0) {
 630                 TALLOC_FREE(alias_sids);
 631                 return NT_STATUS_OK;
 632         }
 633
 634         *pp_alias_rids = TALLOC_ARRAY(mem_ctx, uint32, num_alias_sids);
 635         if (*pp_alias_rids == NULL)
 636                 return NT_STATUS_NO_MEMORY;
 637
 638         for (i=0; i<num_alias_sids; i++) {
 639                 if (!sid_peek_check_rid(domain_sid, &alias_sids[i],
 640                                         &(*pp_alias_rids)[*p_num_alias_rids]))
 641                         continue;
 642                 *p_num_alias_rids += 1;
 643         }
 644
 645         TALLOC_FREE(alias_sids);
 646
 647         return NT_STATUS_OK;
 648 }
 649
 650 /**********************************************************************
 651  no ops for passdb backends that don't implement group mapping
 652  *********************************************************************/
 653
 654 NTSTATUS pdb_nop_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
 655                                  DOM_SID sid)
 656 {
 657         return NT_STATUS_UNSUCCESSFUL;
 658 }
 659
 660 NTSTATUS pdb_nop_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
 661                                  gid_t gid)
 662 {
 663         return NT_STATUS_UNSUCCESSFUL;
 664 }
 665
 666 NTSTATUS pdb_nop_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
 667                                  const char *name)
 668 {
 669         return NT_STATUS_UNSUCCESSFUL;
 670 }
 671
 672 NTSTATUS pdb_nop_add_group_mapping_entry(struct pdb_methods *methods,
 673                                                 GROUP_MAP *map)
 674 {
 675         return NT_STATUS_UNSUCCESSFUL;
 676 }
 677
 678 NTSTATUS pdb_nop_update_group_mapping_entry(struct pdb_methods *methods,
 679                                                    GROUP_MAP *map)
 680 {
 681         return NT_STATUS_UNSUCCESSFUL;
 682 }
 683
 684 NTSTATUS pdb_nop_delete_group_mapping_entry(struct pdb_methods *methods,
 685                                                    DOM_SID sid)
 686 {
 687         return NT_STATUS_UNSUCCESSFUL;
 688 }
 689
 690 NTSTATUS pdb_nop_enum_group_mapping(struct pdb_methods *methods,
 691                                            enum lsa_SidType sid_name_use,
 692                                            GROUP_MAP **rmap, size_t *num_entries,
 693                                            bool unix_only)
 694 {
 695         return NT_STATUS_UNSUCCESSFUL;
 696 }
 697
 698 /****************************************************************************
 699  These need to be redirected through pdb_interface.c
 700 ****************************************************************************/
 701 bool pdb_get_dom_grp_info(const DOM_SID *sid, struct acct_info *info)
 702 {
 703         GROUP_MAP map;
 704         bool res;
 705
 706         become_root();
 707         res = get_domain_group_from_sid(*sid, &map);
 708         unbecome_root();
 709
 710         if (!res)
 711                 return False;
 712
 713         fstrcpy(info->acct_name, map.nt_name);
 714         fstrcpy(info->acct_desc, map.comment);
 715         sid_peek_rid(sid, &info->rid);
 716         return True;
 717 }
 718
 719 bool pdb_set_dom_grp_info(const DOM_SID *sid, const struct acct_info *info)
 720 {
 721         GROUP_MAP map;
 722
 723         if (!get_domain_group_from_sid(*sid, &map))
 724                 return False;
 725
 726         fstrcpy(map.nt_name, info->acct_name);
 727         fstrcpy(map.comment, info->acct_desc);
 728
 729         return NT_STATUS_IS_OK(pdb_update_group_mapping_entry(&map));
 730 }
 731
 732 /********************************************************************
 733  Really just intended to be called by smbd
 734 ********************************************************************/
 735
 736 NTSTATUS pdb_create_builtin_alias(uint32 rid)
 737 {
 738         DOM_SID sid;
 739         enum lsa_SidType type;
 740         gid_t gid;
 741         GROUP_MAP map;
 742         TALLOC_CTX *mem_ctx;
 743         NTSTATUS status;
 744         const char *name = NULL;
 745         fstring groupname;
 746
 747         DEBUG(10, ("Trying to create builtin alias %d\n", rid));
 748
 749         if ( !sid_compose( &sid, &global_sid_Builtin, rid ) ) {
 750                 return NT_STATUS_NO_SUCH_ALIAS;
 751         }
 752
 753         if ( (mem_ctx = talloc_new(NULL)) == NULL ) {
 754                 return NT_STATUS_NO_MEMORY;
 755         }
 756
 757         if ( !lookup_sid(mem_ctx, &sid, NULL, &name, &type) ) {
 758                 TALLOC_FREE( mem_ctx );
 759                 return NT_STATUS_NO_SUCH_ALIAS;
 760         }
 761
 762         /* validate RID so copy the name and move on */
 763
 764         fstrcpy( groupname, name );
 765         TALLOC_FREE( mem_ctx );
 766
 767         if (!winbind_allocate_gid(&gid)) {
 768                 DEBUG(3, ("pdb_create_builtin_alias: Could not get a gid out of winbind\n"));
 769                 return NT_STATUS_ACCESS_DENIED;
 770         }
 771
 772         DEBUG(10,("Creating alias %s with gid %u\n", groupname, (unsigned int)gid));
 773
 774         map.gid = gid;
 775         sid_copy(&map.sid, &sid);
 776         map.sid_name_use = SID_NAME_ALIAS;
 777         fstrcpy(map.nt_name, groupname);
 778         fstrcpy(map.comment, "");
 779
 780         status = pdb_add_group_mapping_entry(&map);
 781
 782         if (!NT_STATUS_IS_OK(status)) {
 783                 DEBUG(0, ("pdb_create_builtin_alias: Could not add group mapping entry for alias %d "
 784                           "(%s)\n", rid, nt_errstr(status)));
 785         }
 786
 787         return status;
 788 }
 789
 790