source: branches/samba-3.5.x/source3/groupdb/mapping.c@ 773

Last change on this file since 773 was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 19.4 KB
Line 
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
26static const struct mapping_backend *backend;
27
28/*
29 initialise a group mapping backend
30 */
31static 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/****************************************************************************
62initialise first time the mapping list
63****************************************************************************/
64NTSTATUS 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
86static 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
102struct 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
122bool 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
190int 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
249int 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
284int 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, "%g", unix_group);
301 if (!add_script) {
302 return -1;
303 }
304 add_script = talloc_string_sub(ctx,
305 add_script, "%u", unix_user);
306 if (!add_script) {
307 return -1;
308 }
309 ret = smbrun(add_script,NULL);
310 flush_pwnam_cache();
311 DEBUG(ret ? 0 : 3,("smb_set_primary_group: "
312 "Running the command `%s' gave %d\n",add_script,ret));
313 if (ret == 0) {
314 smb_nscd_flush_group_cache();
315 }
316 return ret;
317 }
318
319 return -1;
320}
321
322/****************************************************************************
323 Add a user to a UNIX group.
324****************************************************************************/
325
326int smb_add_user_group(const char *unix_group, const char *unix_user)
327{
328 char *add_script = NULL;
329 int ret = -1;
330
331 /* defer to scripts */
332
333 if ( *lp_addusertogroup_script() ) {
334 TALLOC_CTX *ctx = talloc_tos();
335
336 add_script = talloc_strdup(ctx,
337 lp_addusertogroup_script());
338 if (!add_script) {
339 return -1;
340 }
341 add_script = talloc_string_sub(ctx,
342 add_script, "%g", unix_group);
343 if (!add_script) {
344 return -1;
345 }
346 add_script = talloc_string_sub(ctx,
347 add_script, "%u", unix_user);
348 if (!add_script) {
349 return -1;
350 }
351 ret = smbrun(add_script,NULL);
352 DEBUG(ret ? 0 : 3,("smb_add_user_group: Running the command `%s' gave %d\n",add_script,ret));
353 if (ret == 0) {
354 smb_nscd_flush_group_cache();
355 }
356 return ret;
357 }
358
359 return -1;
360}
361
362/****************************************************************************
363 Delete a user from a UNIX group
364****************************************************************************/
365
366int smb_delete_user_group(const char *unix_group, const char *unix_user)
367{
368 char *del_script = NULL;
369 int ret = -1;
370
371 /* defer to scripts */
372
373 if ( *lp_deluserfromgroup_script() ) {
374 TALLOC_CTX *ctx = talloc_tos();
375
376 del_script = talloc_strdup(ctx,
377 lp_deluserfromgroup_script());
378 if (!del_script) {
379 return -1;
380 }
381 del_script = talloc_string_sub(ctx,
382 del_script, "%g", unix_group);
383 if (!del_script) {
384 return -1;
385 }
386 del_script = talloc_string_sub(ctx,
387 del_script, "%u", unix_user);
388 if (!del_script) {
389 return -1;
390 }
391 ret = smbrun(del_script,NULL);
392 DEBUG(ret ? 0 : 3,("smb_delete_user_group: Running the command `%s' gave %d\n",del_script,ret));
393 if (ret == 0) {
394 smb_nscd_flush_group_cache();
395 }
396 return ret;
397 }
398
399 return -1;
400}
401
402
403NTSTATUS pdb_default_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
404 DOM_SID sid)
405{
406 if (!init_group_mapping()) {
407 DEBUG(0,("failed to initialize group mapping\n"));
408 return NT_STATUS_UNSUCCESSFUL;
409 }
410 return backend->get_group_map_from_sid(sid, map) ?
411 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
412}
413
414NTSTATUS pdb_default_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
415 gid_t gid)
416{
417 if (!init_group_mapping()) {
418 DEBUG(0,("failed to initialize group mapping\n"));
419 return NT_STATUS_UNSUCCESSFUL;
420 }
421 return backend->get_group_map_from_gid(gid, map) ?
422 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
423}
424
425NTSTATUS pdb_default_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
426 const char *name)
427{
428 if (!init_group_mapping()) {
429 DEBUG(0,("failed to initialize group mapping\n"));
430 return NT_STATUS_UNSUCCESSFUL;
431 }
432 return backend->get_group_map_from_ntname(name, map) ?
433 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
434}
435
436NTSTATUS pdb_default_add_group_mapping_entry(struct pdb_methods *methods,
437 GROUP_MAP *map)
438{
439 if (!init_group_mapping()) {
440 DEBUG(0,("failed to initialize group mapping\n"));
441 return NT_STATUS_UNSUCCESSFUL;
442 }
443 return backend->add_mapping_entry(map, TDB_INSERT) ?
444 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
445}
446
447NTSTATUS pdb_default_update_group_mapping_entry(struct pdb_methods *methods,
448 GROUP_MAP *map)
449{
450 if (!init_group_mapping()) {
451 DEBUG(0,("failed to initialize group mapping\n"));
452 return NT_STATUS_UNSUCCESSFUL;
453 }
454 return backend->add_mapping_entry(map, TDB_REPLACE) ?
455 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
456}
457
458NTSTATUS pdb_default_delete_group_mapping_entry(struct pdb_methods *methods,
459 DOM_SID sid)
460{
461 if (!init_group_mapping()) {
462 DEBUG(0,("failed to initialize group mapping\n"));
463 return NT_STATUS_UNSUCCESSFUL;
464 }
465 return backend->group_map_remove(&sid) ?
466 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
467}
468
469NTSTATUS pdb_default_enum_group_mapping(struct pdb_methods *methods,
470 const DOM_SID *sid, enum lsa_SidType sid_name_use,
471 GROUP_MAP **pp_rmap, size_t *p_num_entries,
472 bool unix_only)
473{
474 if (!init_group_mapping()) {
475 DEBUG(0,("failed to initialize group mapping\n"));
476 return NT_STATUS_UNSUCCESSFUL;
477 }
478 return backend->enum_group_mapping(sid, sid_name_use, pp_rmap, p_num_entries, unix_only) ?
479 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
480}
481
482NTSTATUS pdb_default_create_alias(struct pdb_methods *methods,
483 const char *name, uint32 *rid)
484{
485 DOM_SID sid;
486 enum lsa_SidType type;
487 uint32 new_rid;
488 gid_t gid;
489 bool exists;
490 GROUP_MAP map;
491 TALLOC_CTX *mem_ctx;
492 NTSTATUS status;
493
494 DEBUG(10, ("Trying to create alias %s\n", name));
495
496 mem_ctx = talloc_new(NULL);
497 if (mem_ctx == NULL) {
498 return NT_STATUS_NO_MEMORY;
499 }
500
501 exists = lookup_name(mem_ctx, name, LOOKUP_NAME_LOCAL,
502 NULL, NULL, &sid, &type);
503 TALLOC_FREE(mem_ctx);
504
505 if (exists) {
506 return NT_STATUS_ALIAS_EXISTS;
507 }
508
509 if (!winbind_allocate_gid(&gid)) {
510 DEBUG(3, ("Could not get a gid out of winbind\n"));
511 return NT_STATUS_ACCESS_DENIED;
512 }
513
514 if (!pdb_new_rid(&new_rid)) {
515 DEBUG(0, ("Could not allocate a RID -- wasted a gid :-(\n"));
516 return NT_STATUS_ACCESS_DENIED;
517 }
518
519 DEBUG(10, ("Creating alias %s with gid %u and rid %u\n",
520 name, (unsigned int)gid, (unsigned int)new_rid));
521
522 sid_copy(&sid, get_global_sam_sid());
523 sid_append_rid(&sid, new_rid);
524
525 map.gid = gid;
526 sid_copy(&map.sid, &sid);
527 map.sid_name_use = SID_NAME_ALIAS;
528 fstrcpy(map.nt_name, name);
529 fstrcpy(map.comment, "");
530
531 status = pdb_add_group_mapping_entry(&map);
532
533 if (!NT_STATUS_IS_OK(status)) {
534 DEBUG(0, ("Could not add group mapping entry for alias %s "
535 "(%s)\n", name, nt_errstr(status)));
536 return status;
537 }
538
539 *rid = new_rid;
540
541 return NT_STATUS_OK;
542}
543
544NTSTATUS pdb_default_delete_alias(struct pdb_methods *methods,
545 const DOM_SID *sid)
546{
547 return pdb_delete_group_mapping_entry(*sid);
548}
549
550NTSTATUS pdb_default_get_aliasinfo(struct pdb_methods *methods,
551 const DOM_SID *sid,
552 struct acct_info *info)
553{
554 GROUP_MAP map;
555
556 if (!pdb_getgrsid(&map, *sid))
557 return NT_STATUS_NO_SUCH_ALIAS;
558
559 if ((map.sid_name_use != SID_NAME_ALIAS) &&
560 (map.sid_name_use != SID_NAME_WKN_GRP)) {
561 DEBUG(2, ("%s is a %s, expected an alias\n",
562 sid_string_dbg(sid),
563 sid_type_lookup(map.sid_name_use)));
564 return NT_STATUS_NO_SUCH_ALIAS;
565 }
566
567 fstrcpy(info->acct_name, map.nt_name);
568 fstrcpy(info->acct_desc, map.comment);
569 sid_peek_rid(&map.sid, &info->rid);
570 return NT_STATUS_OK;
571}
572
573NTSTATUS pdb_default_set_aliasinfo(struct pdb_methods *methods,
574 const DOM_SID *sid,
575 struct acct_info *info)
576{
577 GROUP_MAP map;
578
579 if (!pdb_getgrsid(&map, *sid))
580 return NT_STATUS_NO_SUCH_ALIAS;
581
582 fstrcpy(map.nt_name, info->acct_name);
583 fstrcpy(map.comment, info->acct_desc);
584
585 return pdb_update_group_mapping_entry(&map);
586}
587
588NTSTATUS pdb_default_add_aliasmem(struct pdb_methods *methods,
589 const DOM_SID *alias, const DOM_SID *member)
590{
591 if (!init_group_mapping()) {
592 DEBUG(0,("failed to initialize group mapping\n"));
593 return NT_STATUS_UNSUCCESSFUL;
594 }
595 return backend->add_aliasmem(alias, member);
596}
597
598NTSTATUS pdb_default_del_aliasmem(struct pdb_methods *methods,
599 const DOM_SID *alias, const DOM_SID *member)
600{
601 if (!init_group_mapping()) {
602 DEBUG(0,("failed to initialize group mapping\n"));
603 return NT_STATUS_UNSUCCESSFUL;
604 }
605 return backend->del_aliasmem(alias, member);
606}
607
608NTSTATUS pdb_default_enum_aliasmem(struct pdb_methods *methods,
609 const DOM_SID *alias, TALLOC_CTX *mem_ctx,
610 DOM_SID **pp_members, size_t *p_num_members)
611{
612 if (!init_group_mapping()) {
613 DEBUG(0,("failed to initialize group mapping\n"));
614 return NT_STATUS_UNSUCCESSFUL;
615 }
616 return backend->enum_aliasmem(alias, mem_ctx, pp_members,
617 p_num_members);
618}
619
620NTSTATUS pdb_default_alias_memberships(struct pdb_methods *methods,
621 TALLOC_CTX *mem_ctx,
622 const DOM_SID *domain_sid,
623 const DOM_SID *members,
624 size_t num_members,
625 uint32 **pp_alias_rids,
626 size_t *p_num_alias_rids)
627{
628 DOM_SID *alias_sids;
629 size_t i, num_alias_sids;
630 NTSTATUS result;
631
632 if (!init_group_mapping()) {
633 DEBUG(0,("failed to initialize group mapping\n"));
634 return NT_STATUS_UNSUCCESSFUL;
635 }
636
637 alias_sids = NULL;
638 num_alias_sids = 0;
639
640 result = alias_memberships(members, num_members,
641 &alias_sids, &num_alias_sids);
642
643 if (!NT_STATUS_IS_OK(result))
644 return result;
645
646 *p_num_alias_rids = 0;
647
648 if (num_alias_sids == 0) {
649 TALLOC_FREE(alias_sids);
650 return NT_STATUS_OK;
651 }
652
653 *pp_alias_rids = TALLOC_ARRAY(mem_ctx, uint32, num_alias_sids);
654 if (*pp_alias_rids == NULL)
655 return NT_STATUS_NO_MEMORY;
656
657 for (i=0; i<num_alias_sids; i++) {
658 if (!sid_peek_check_rid(domain_sid, &alias_sids[i],
659 &(*pp_alias_rids)[*p_num_alias_rids]))
660 continue;
661 *p_num_alias_rids += 1;
662 }
663
664 TALLOC_FREE(alias_sids);
665
666 return NT_STATUS_OK;
667}
668
669/**********************************************************************
670 no ops for passdb backends that don't implement group mapping
671 *********************************************************************/
672
673NTSTATUS pdb_nop_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
674 DOM_SID sid)
675{
676 return NT_STATUS_UNSUCCESSFUL;
677}
678
679NTSTATUS pdb_nop_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
680 gid_t gid)
681{
682 return NT_STATUS_UNSUCCESSFUL;
683}
684
685NTSTATUS pdb_nop_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
686 const char *name)
687{
688 return NT_STATUS_UNSUCCESSFUL;
689}
690
691NTSTATUS pdb_nop_add_group_mapping_entry(struct pdb_methods *methods,
692 GROUP_MAP *map)
693{
694 return NT_STATUS_UNSUCCESSFUL;
695}
696
697NTSTATUS pdb_nop_update_group_mapping_entry(struct pdb_methods *methods,
698 GROUP_MAP *map)
699{
700 return NT_STATUS_UNSUCCESSFUL;
701}
702
703NTSTATUS pdb_nop_delete_group_mapping_entry(struct pdb_methods *methods,
704 DOM_SID sid)
705{
706 return NT_STATUS_UNSUCCESSFUL;
707}
708
709NTSTATUS pdb_nop_enum_group_mapping(struct pdb_methods *methods,
710 enum lsa_SidType sid_name_use,
711 GROUP_MAP **rmap, size_t *num_entries,
712 bool unix_only)
713{
714 return NT_STATUS_UNSUCCESSFUL;
715}
716
717/****************************************************************************
718 These need to be redirected through pdb_interface.c
719****************************************************************************/
720bool pdb_get_dom_grp_info(const DOM_SID *sid, struct acct_info *info)
721{
722 GROUP_MAP map;
723 bool res;
724
725 become_root();
726 res = get_domain_group_from_sid(*sid, &map);
727 unbecome_root();
728
729 if (!res)
730 return False;
731
732 fstrcpy(info->acct_name, map.nt_name);
733 fstrcpy(info->acct_desc, map.comment);
734 sid_peek_rid(sid, &info->rid);
735 return True;
736}
737
738bool pdb_set_dom_grp_info(const DOM_SID *sid, const struct acct_info *info)
739{
740 GROUP_MAP map;
741
742 if (!get_domain_group_from_sid(*sid, &map))
743 return False;
744
745 fstrcpy(map.nt_name, info->acct_name);
746 fstrcpy(map.comment, info->acct_desc);
747
748 return NT_STATUS_IS_OK(pdb_update_group_mapping_entry(&map));
749}
750
751/********************************************************************
752 Really just intended to be called by smbd
753********************************************************************/
754
755NTSTATUS pdb_create_builtin_alias(uint32 rid)
756{
757 DOM_SID sid;
758 enum lsa_SidType type;
759 gid_t gid;
760 GROUP_MAP map;
761 TALLOC_CTX *mem_ctx;
762 NTSTATUS status;
763 const char *name = NULL;
764 fstring groupname;
765
766 DEBUG(10, ("Trying to create builtin alias %d\n", rid));
767
768 if ( !sid_compose( &sid, &global_sid_Builtin, rid ) ) {
769 return NT_STATUS_NO_SUCH_ALIAS;
770 }
771
772 if ( (mem_ctx = talloc_new(NULL)) == NULL ) {
773 return NT_STATUS_NO_MEMORY;
774 }
775
776 if ( !lookup_sid(mem_ctx, &sid, NULL, &name, &type) ) {
777 TALLOC_FREE( mem_ctx );
778 return NT_STATUS_NO_SUCH_ALIAS;
779 }
780
781 /* validate RID so copy the name and move on */
782
783 fstrcpy( groupname, name );
784 TALLOC_FREE( mem_ctx );
785
786 if (!winbind_allocate_gid(&gid)) {
787 DEBUG(3, ("pdb_create_builtin_alias: Could not get a gid out of winbind\n"));
788 return NT_STATUS_ACCESS_DENIED;
789 }
790
791 DEBUG(10,("Creating alias %s with gid %u\n", groupname, (unsigned int)gid));
792
793 map.gid = gid;
794 sid_copy(&map.sid, &sid);
795 map.sid_name_use = SID_NAME_ALIAS;
796 fstrcpy(map.nt_name, groupname);
797 fstrcpy(map.comment, "");
798
799 status = pdb_add_group_mapping_entry(&map);
800
801 if (!NT_STATUS_IS_OK(status)) {
802 DEBUG(0, ("pdb_create_builtin_alias: Could not add group mapping entry for alias %d "
803 "(%s)\n", rid, nt_errstr(status)));
804 }
805
806 return status;
807}
808
809
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