source: branches/samba-3.3.x/source/winbindd/idmap.c

Last change on this file was 224, checked in by Herwig Bauernfeind, 16 years ago

Update Samba 3.3 branch to 3.3.4
File size: 20.4 KB
RevLine 
[224]1/*
2 Unix SMB/CIFS implementation.
3 ID Mapping
4 Copyright (C) Tim Potter 2000
5 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
6 Copyright (C) Simo Sorce 2003-2007
7 Copyright (C) Jeremy Allison 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 "winbindd.h"
25
26#undef DBGC_CLASS
27#define DBGC_CLASS DBGC_IDMAP
28
29static_decl_idmap;
30
31/**
32 * Pointer to the backend methods. Modules register themselves here via
33 * smb_register_idmap.
34 */
35
36struct idmap_backend {
37 const char *name;
38 struct idmap_methods *methods;
39 struct idmap_backend *prev, *next;
40};
41static struct idmap_backend *backends = NULL;
42
43/**
44 * Pointer to the alloc backend methods. Modules register themselves here via
45 * smb_register_idmap_alloc.
46 */
47struct idmap_alloc_backend {
48 const char *name;
49 struct idmap_alloc_methods *methods;
50 struct idmap_alloc_backend *prev, *next;
51};
52static struct idmap_alloc_backend *alloc_backends = NULL;
53
54/**
55 * The idmap alloc context that is configured via "idmap alloc
56 * backend". Defaults to "idmap backend" in case the module (tdb, ldap) also
57 * provides alloc methods.
58 */
59struct idmap_alloc_context {
60 struct idmap_alloc_methods *methods;
61};
62static struct idmap_alloc_context *idmap_alloc_ctx = NULL;
63
64/**
65 * Default idmap domain configured via "idmap backend".
66 */
67static struct idmap_domain *default_idmap_domain;
68
69/**
70 * Passdb idmap domain, not configurable. winbind must always give passdb a
71 * chance to map ids.
72 */
73static struct idmap_domain *passdb_idmap_domain;
74
75/**
76 * List of specially configured idmap domains. This list is filled on demand
77 * in the winbind idmap child when the parent winbind figures out via the
78 * special range parameter or via the domain SID that a special "idmap config
79 * domain" configuration is present.
80 */
81static struct idmap_domain **idmap_domains = NULL;
82static int num_domains = 0;
83
84static struct idmap_methods *get_methods(const char *name)
85{
86 struct idmap_backend *b;
87
88 for (b = backends; b; b = b->next) {
89 if (strequal(b->name, name)) {
90 return b->methods;
91 }
92 }
93
94 return NULL;
95}
96
97static struct idmap_alloc_methods *get_alloc_methods(const char *name)
98{
99 struct idmap_alloc_backend *b;
100
101 for (b = alloc_backends; b; b = b->next) {
102 if (strequal(b->name, name)) {
103 return b->methods;
104 }
105 }
106
107 return NULL;
108}
109
110bool idmap_is_offline(void)
111{
112 return ( lp_winbind_offline_logon() &&
113 get_global_winbindd_state_offline() );
114}
115
116bool idmap_is_online(void)
117{
118 return !idmap_is_offline();
119}
120
121/**********************************************************************
122 Allow a module to register itself as a method.
123**********************************************************************/
124
125NTSTATUS smb_register_idmap(int version, const char *name,
126 struct idmap_methods *methods)
127{
128 struct idmap_backend *entry;
129
130 if ((version != SMB_IDMAP_INTERFACE_VERSION)) {
131 DEBUG(0, ("Failed to register idmap module.\n"
132 "The module was compiled against "
133 "SMB_IDMAP_INTERFACE_VERSION %d,\n"
134 "current SMB_IDMAP_INTERFACE_VERSION is %d.\n"
135 "Please recompile against the current version "
136 "of samba!\n",
137 version, SMB_IDMAP_INTERFACE_VERSION));
138 return NT_STATUS_OBJECT_TYPE_MISMATCH;
139 }
140
141 if (!name || !name[0] || !methods) {
142 DEBUG(0,("Called with NULL pointer or empty name!\n"));
143 return NT_STATUS_INVALID_PARAMETER;
144 }
145
146 for (entry = backends; entry != NULL; entry = entry->next) {
147 if (strequal(entry->name, name)) {
148 DEBUG(0,("Idmap module %s already registered!\n",
149 name));
150 return NT_STATUS_OBJECT_NAME_COLLISION;
151 }
152 }
153
154 entry = talloc(NULL, struct idmap_backend);
155 if ( ! entry) {
156 DEBUG(0,("Out of memory!\n"));
157 TALLOC_FREE(entry);
158 return NT_STATUS_NO_MEMORY;
159 }
160 entry->name = talloc_strdup(entry, name);
161 if ( ! entry->name) {
162 DEBUG(0,("Out of memory!\n"));
163 TALLOC_FREE(entry);
164 return NT_STATUS_NO_MEMORY;
165 }
166 entry->methods = methods;
167
168 DLIST_ADD(backends, entry);
169 DEBUG(5, ("Successfully added idmap backend '%s'\n", name));
170 return NT_STATUS_OK;
171}
172
173/**********************************************************************
174 Allow a module to register itself as an alloc method.
175**********************************************************************/
176
177NTSTATUS smb_register_idmap_alloc(int version, const char *name,
178 struct idmap_alloc_methods *methods)
179{
180 struct idmap_alloc_methods *test;
181 struct idmap_alloc_backend *entry;
182
183 if ((version != SMB_IDMAP_INTERFACE_VERSION)) {
184 DEBUG(0, ("Failed to register idmap alloc module.\n"
185 "The module was compiled against "
186 "SMB_IDMAP_INTERFACE_VERSION %d,\n"
187 "current SMB_IDMAP_INTERFACE_VERSION is %d.\n"
188 "Please recompile against the current version "
189 "of samba!\n",
190 version, SMB_IDMAP_INTERFACE_VERSION));
191 return NT_STATUS_OBJECT_TYPE_MISMATCH;
192 }
193
194 if (!name || !name[0] || !methods) {
195 DEBUG(0,("Called with NULL pointer or empty name!\n"));
196 return NT_STATUS_INVALID_PARAMETER;
197 }
198
199 test = get_alloc_methods(name);
200 if (test) {
201 DEBUG(0,("idmap_alloc module %s already registered!\n", name));
202 return NT_STATUS_OBJECT_NAME_COLLISION;
203 }
204
205 entry = talloc(NULL, struct idmap_alloc_backend);
206 if ( ! entry) {
207 DEBUG(0,("Out of memory!\n"));
208 return NT_STATUS_NO_MEMORY;
209 }
210 entry->name = talloc_strdup(entry, name);
211 if ( ! entry->name) {
212 DEBUG(0,("Out of memory!\n"));
213 return NT_STATUS_NO_MEMORY;
214 }
215 entry->methods = methods;
216
217 DLIST_ADD(alloc_backends, entry);
218 DEBUG(5, ("Successfully added idmap alloc backend '%s'\n", name));
219 return NT_STATUS_OK;
220}
221
222static int close_domain_destructor(struct idmap_domain *dom)
223{
224 NTSTATUS ret;
225
226 ret = dom->methods->close_fn(dom);
227 if (!NT_STATUS_IS_OK(ret)) {
228 DEBUG(3, ("Failed to close idmap domain [%s]!\n", dom->name));
229 }
230
231 return 0;
232}
233
234static bool parse_idmap_module(TALLOC_CTX *mem_ctx, const char *param,
235 char **pmodulename, char **pargs)
236{
237 char *modulename;
238 char *args;
239
240 if (strncmp(param, "idmap_", 6) == 0) {
241 param += 6;
242 DEBUG(1, ("idmap_init: idmap backend uses deprecated "
243 "'idmap_' prefix. Please replace 'idmap_%s' by "
244 "'%s'\n", param, param));
245 }
246
247 modulename = talloc_strdup(mem_ctx, param);
248 if (modulename == NULL) {
249 return false;
250 }
251
252 args = strchr(modulename, ':');
253 if (args == NULL) {
254 *pmodulename = modulename;
255 *pargs = NULL;
256 return true;
257 }
258
259 *args = '\0';
260
261 args = talloc_strdup(mem_ctx, args+1);
262 if (args == NULL) {
263 TALLOC_FREE(modulename);
264 return false;
265 }
266
267 *pmodulename = modulename;
268 *pargs = args;
269 return true;
270}
271
272/**
273 * Initialize a domain structure
274 * @param[in] mem_ctx memory context for the result
275 * @param[in] domainname which domain is this for
276 * @param[in] modulename which backend module
277 * @param[in] params parameter to pass to the init function
278 * @result The initialized structure
279 */
280static struct idmap_domain *idmap_init_domain(TALLOC_CTX *mem_ctx,
281 const char *domainname,
282 const char *modulename,
283 const char *params)
284{
285 struct idmap_domain *result;
286 NTSTATUS status;
287
288 result = talloc_zero(mem_ctx, struct idmap_domain);
289 if (result == NULL) {
290 DEBUG(0, ("talloc failed\n"));
291 return NULL;
292 }
293
294 result->name = talloc_strdup(result, domainname);
295 if (result->name == NULL) {
296 DEBUG(0, ("talloc failed\n"));
297 goto fail;
298 }
299
300 result->methods = get_methods(modulename);
301 if (result->methods == NULL) {
302 DEBUG(3, ("idmap backend %s not found\n", modulename));
303
304 status = smb_probe_module("idmap", modulename);
305 if (!NT_STATUS_IS_OK(status)) {
306 DEBUG(3, ("Could not probe idmap module %s\n",
307 modulename));
308 goto fail;
309 }
310
311 result->methods = get_methods(modulename);
312 }
313 if (result->methods == NULL) {
314 DEBUG(1, ("idmap backend %s not found\n", modulename));
315 goto fail;
316 }
317
318 status = result->methods->init(result, params);
319 if (!NT_STATUS_IS_OK(status)) {
320 DEBUG(1, ("idmap initialization returned %s\n",
321 nt_errstr(status)));
322 goto fail;
323 }
324
325 talloc_set_destructor(result, close_domain_destructor);
326
327 return result;
328
329fail:
330 TALLOC_FREE(result);
331 return NULL;
332}
333
334/**
335 * Initialize the default domain structure
336 * @param[in] mem_ctx memory context for the result
337 * @result The default domain structure
338 *
339 * This routine takes the module name from the "idmap backend" parameter,
340 * passing a possible parameter like ldap:ldap://ldap-url/ to the module.
341 */
342
343static struct idmap_domain *idmap_init_default_domain(TALLOC_CTX *mem_ctx)
344{
345 struct idmap_domain *result;
346 char *modulename;
347 char *params;
348
349 DEBUG(10, ("idmap_init_default_domain: calling static_init_idmap\n"));
350
351 static_init_idmap;
352
353 if (!parse_idmap_module(talloc_tos(), lp_idmap_backend(), &modulename,
354 &params)) {
355 DEBUG(1, ("parse_idmap_module failed\n"));
356 return NULL;
357 }
358
359 DEBUG(3, ("idmap_init: using '%s' as remote backend\n", modulename));
360
361 result = idmap_init_domain(mem_ctx, "*", modulename, params);
362 if (result == NULL) {
363 goto fail;
364 }
365
366 TALLOC_FREE(modulename);
367 TALLOC_FREE(params);
368 return result;
369
370fail:
371 TALLOC_FREE(modulename);
372 TALLOC_FREE(params);
373 TALLOC_FREE(result);
374 return NULL;
375}
376
377/**
378 * Initialize a named domain structure
379 * @param[in] mem_ctx memory context for the result
380 * @param[in] domname the domain name
381 * @result The default domain structure
382 *
383 * This routine looks at the "idmap config <domname>" parameters to figure out
384 * the configuration.
385 */
386
387static struct idmap_domain *idmap_init_named_domain(TALLOC_CTX *mem_ctx,
388 const char *domname)
389{
390 struct idmap_domain *result = NULL;
391 char *config_option;
392 const char *backend;
393
394 config_option = talloc_asprintf(talloc_tos(), "idmap config %s",
395 domname);
396 if (config_option == NULL) {
397 DEBUG(0, ("talloc failed\n"));
398 goto fail;
399 }
400
401 backend = lp_parm_const_string(-1, config_option, "backend", NULL);
402 if (backend == NULL) {
403 DEBUG(1, ("no backend defined for %s\n", config_option));
404 goto fail;
405 }
406
407 result = idmap_init_domain(mem_ctx, domname, backend, NULL);
408 if (result == NULL) {
409 goto fail;
410 }
411
412 TALLOC_FREE(config_option);
413 return result;
414
415fail:
416 TALLOC_FREE(config_option);
417 TALLOC_FREE(result);
418 return NULL;
419}
420
421/**
422 * Initialize the passdb domain structure
423 * @param[in] mem_ctx memory context for the result
424 * @result The default domain structure
425 *
426 * No config, passdb has its own configuration.
427 */
428
429static struct idmap_domain *idmap_init_passdb_domain(TALLOC_CTX *mem_ctx)
430{
431 if (passdb_idmap_domain != NULL) {
432 return passdb_idmap_domain;
433 }
434
435 passdb_idmap_domain = idmap_init_domain(NULL, get_global_sam_name(),
436 "passdb", NULL);
437 if (passdb_idmap_domain == NULL) {
438 DEBUG(1, ("Could not init passdb idmap domain\n"));
439 }
440
441 return passdb_idmap_domain;
442}
443
444/**
445 * Find a domain struct according to a domain name
446 * @param[in] domname Domain name to get the config for
447 * @result The default domain structure that fits
448 *
449 * This is the central routine in the winbindd-idmap child to pick the correct
450 * domain for looking up IDs. If domname is NULL or empty, we use the default
451 * domain. If it contains something, we try to use idmap_init_named_domain()
452 * to fetch the correct backend.
453 *
454 * The choice about "domname" is being made by the winbind parent, look at the
455 * "have_idmap_config" of "struct winbindd_domain" which is set in
456 * add_trusted_domain.
457 */
458
459static struct idmap_domain *idmap_find_domain(const char *domname)
460{
461 struct idmap_domain *result;
462 int i;
463
464 DEBUG(10, ("idmap_find_domain called for domain '%s'\n",
465 domname?domname:"NULL"));
466
467 /*
468 * Always init the default domain, we can't go without one
469 */
470 if (default_idmap_domain == NULL) {
471 default_idmap_domain = idmap_init_default_domain(NULL);
472 }
473 if (default_idmap_domain == NULL) {
474 return NULL;
475 }
476
477 if ((domname == NULL) || (domname[0] == '\0')) {
478 return default_idmap_domain;
479 }
480
481 for (i=0; i<num_domains; i++) {
482 if (strequal(idmap_domains[i]->name, domname)) {
483 return idmap_domains[i];
484 }
485 }
486
487 if (idmap_domains == NULL) {
488 /*
489 * talloc context for all idmap domains
490 */
491 idmap_domains = TALLOC_ARRAY(NULL, struct idmap_domain *, 1);
492 }
493
494 if (idmap_domains == NULL) {
495 DEBUG(0, ("talloc failed\n"));
496 return NULL;
497 }
498
499 result = idmap_init_named_domain(idmap_domains, domname);
500 if (result == NULL) {
501 /*
502 * Could not init that domain -- try the default one
503 */
504 return default_idmap_domain;
505 }
506
507 ADD_TO_ARRAY(idmap_domains, struct idmap_domain *, result,
508 &idmap_domains, &num_domains);
509 return result;
510}
511
512void idmap_close(void)
513{
514 if (idmap_alloc_ctx) {
515 idmap_alloc_ctx->methods->close_fn();
516 idmap_alloc_ctx->methods = NULL;
517 }
518 alloc_backends = NULL;
519 TALLOC_FREE(default_idmap_domain);
520 TALLOC_FREE(passdb_idmap_domain);
521 TALLOC_FREE(idmap_domains);
522 num_domains = 0;
523}
524
525/**
526 * Initialize the idmap alloc backend
527 * @param[out] ctx Where to put the alloc_ctx?
528 * @result Did it work fine?
529 *
530 * This routine first looks at "idmap alloc backend" and if that is not
531 * defined, it uses "idmap backend" for the module name.
532 */
533static NTSTATUS idmap_alloc_init(struct idmap_alloc_context **ctx)
534{
535 const char *backend;
536 char *modulename, *params;
537 NTSTATUS ret = NT_STATUS_NO_MEMORY;;
538
539 static_init_idmap;
540
541 if (idmap_alloc_ctx != NULL) {
542 *ctx = idmap_alloc_ctx;
543 return NT_STATUS_OK;
544 }
545
546 idmap_alloc_ctx = talloc(NULL, struct idmap_alloc_context);
547 if (idmap_alloc_ctx == NULL) {
548 DEBUG(0, ("talloc failed\n"));
549 goto fail;
550 }
551
552 backend = lp_idmap_alloc_backend();
553 if ((backend == NULL) || (backend[0] == '\0')) {
554 backend = lp_idmap_backend();
555 }
556
557 if (backend == NULL) {
558 DEBUG(3, ("no idmap alloc backend defined\n"));
559 ret = NT_STATUS_INVALID_PARAMETER;
560 goto fail;
561 }
562
563 if (!parse_idmap_module(idmap_alloc_ctx, backend, &modulename,
564 &params)) {
565 DEBUG(1, ("parse_idmap_module %s failed\n", backend));
566 goto fail;
567 }
568
569 idmap_alloc_ctx->methods = get_alloc_methods(modulename);
570
571 if (idmap_alloc_ctx->methods == NULL) {
572 ret = smb_probe_module("idmap", modulename);
573 if (NT_STATUS_IS_OK(ret)) {
574 idmap_alloc_ctx->methods =
575 get_alloc_methods(modulename);
576 }
577 }
578
579 if (idmap_alloc_ctx->methods == NULL) {
580 DEBUG(1, ("could not find idmap alloc module %s\n", backend));
581 ret = NT_STATUS_INVALID_PARAMETER;
582 goto fail;
583 }
584
585 ret = idmap_alloc_ctx->methods->init(params);
586
587 if (!NT_STATUS_IS_OK(ret)) {
588 DEBUG(0, ("ERROR: Initialization failed for alloc "
589 "backend, deferred!\n"));
590 goto fail;
591 }
592
593 TALLOC_FREE(modulename);
594 TALLOC_FREE(params);
595
596 *ctx = idmap_alloc_ctx;
597 return NT_STATUS_OK;
598
599fail:
600 TALLOC_FREE(idmap_alloc_ctx);
601 return ret;
602}
603
604/**************************************************************************
605 idmap allocator interface functions
606**************************************************************************/
607
608NTSTATUS idmap_allocate_uid(struct unixid *id)
609{
610 struct idmap_alloc_context *ctx;
611 NTSTATUS ret;
612
613 if (!NT_STATUS_IS_OK(ret = idmap_alloc_init(&ctx))) {
614 return ret;
615 }
616
617 id->type = ID_TYPE_UID;
618 return ctx->methods->allocate_id(id);
619}
620
621NTSTATUS idmap_allocate_gid(struct unixid *id)
622{
623 struct idmap_alloc_context *ctx;
624 NTSTATUS ret;
625
626 if (!NT_STATUS_IS_OK(ret = idmap_alloc_init(&ctx))) {
627 return ret;
628 }
629
630 id->type = ID_TYPE_GID;
631 return ctx->methods->allocate_id(id);
632}
633
634NTSTATUS idmap_set_uid_hwm(struct unixid *id)
635{
636 struct idmap_alloc_context *ctx;
637 NTSTATUS ret;
638
639 if (!NT_STATUS_IS_OK(ret = idmap_alloc_init(&ctx))) {
640 return ret;
641 }
642
643 id->type = ID_TYPE_UID;
644 return ctx->methods->set_id_hwm(id);
645}
646
647NTSTATUS idmap_set_gid_hwm(struct unixid *id)
648{
649 struct idmap_alloc_context *ctx;
650 NTSTATUS ret;
651
652 if (!NT_STATUS_IS_OK(ret = idmap_alloc_init(&ctx))) {
653 return ret;
654 }
655
656 id->type = ID_TYPE_GID;
657 return ctx->methods->set_id_hwm(id);
658}
659
660NTSTATUS idmap_new_mapping(const struct dom_sid *psid, enum id_type type,
661 struct unixid *pxid)
662{
663 struct dom_sid sid;
664 struct idmap_domain *dom;
665 struct id_map map;
666 NTSTATUS status;
667
668 dom = idmap_find_domain(NULL);
669 if (dom == NULL) {
670 DEBUG(3, ("no default domain, no place to write\n"));
671 return NT_STATUS_ACCESS_DENIED;
672 }
673 if (dom->methods->set_mapping == NULL) {
674 DEBUG(3, ("default domain not writable\n"));
675 return NT_STATUS_MEDIA_WRITE_PROTECTED;
676 }
677
678 sid_copy(&sid, psid);
679 map.sid = &sid;
680 map.xid.type = type;
681
682 switch (type) {
683 case ID_TYPE_UID:
684 status = idmap_allocate_uid(&map.xid);
685 break;
686 case ID_TYPE_GID:
687 status = idmap_allocate_gid(&map.xid);
688 break;
689 default:
690 status = NT_STATUS_INVALID_PARAMETER;
691 break;
692 }
693
694 if (!NT_STATUS_IS_OK(status)) {
695 DEBUG(3, ("Could not allocate id: %s\n", nt_errstr(status)));
696 return status;
697 }
698
699 map.status = ID_MAPPED;
700
701 DEBUG(10, ("Setting mapping: %s <-> %s %lu\n",
702 sid_string_dbg(map.sid),
703 (map.xid.type == ID_TYPE_UID) ? "UID" : "GID",
704 (unsigned long)map.xid.id));
705
706 status = dom->methods->set_mapping(dom, &map);
707
708 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
709 struct id_map *ids[2];
710 DEBUG(5, ("Mapping for %s exists - retrying to map sid\n",
711 sid_string_dbg(map.sid)));
712 ids[0] = &map;
713 ids[1] = NULL;
714 status = dom->methods->sids_to_unixids(dom, ids);
715 }
716
717 if (!NT_STATUS_IS_OK(status)) {
718 DEBUG(3, ("Could not store the new mapping: %s\n",
719 nt_errstr(status)));
720 return status;
721 }
722
723 *pxid = map.xid;
724
725 return NT_STATUS_OK;
726}
727
728NTSTATUS idmap_backends_unixid_to_sid(const char *domname, struct id_map *id)
729{
730 struct idmap_domain *dom;
731 struct id_map *maps[2];
732
733 DEBUG(10, ("idmap_backend_unixid_to_sid: domain = '%s', xid = %d "
734 "(type %d)\n",
735 domname?domname:"NULL", id->xid.id, id->xid.type));
736
737 maps[0] = id;
738 maps[1] = NULL;
739
740 /*
741 * Always give passdb a chance first
742 */
743
744 dom = idmap_init_passdb_domain(NULL);
745 if ((dom != NULL)
746 && NT_STATUS_IS_OK(dom->methods->unixids_to_sids(dom, maps))
747 && id->status == ID_MAPPED) {
748 return NT_STATUS_OK;
749 }
750
751 dom = idmap_find_domain(domname);
752 if (dom == NULL) {
753 return NT_STATUS_NONE_MAPPED;
754 }
755
756 return dom->methods->unixids_to_sids(dom, maps);
757}
758
759NTSTATUS idmap_backends_sid_to_unixid(const char *domain, struct id_map *id)
760{
761 struct idmap_domain *dom;
762 struct id_map *maps[2];
763
764 DEBUG(10, ("idmap_backend_sid_to_unixid: domain = '%s', sid = [%s]\n",
765 domain?domain:"NULL", sid_string_dbg(id->sid)));
766
767 maps[0] = id;
768 maps[1] = NULL;
769
770 if (sid_check_is_in_builtin(id->sid)
771 || (sid_check_is_in_our_domain(id->sid))) {
772
773 dom = idmap_init_passdb_domain(NULL);
774 if (dom == NULL) {
775 return NT_STATUS_NONE_MAPPED;
776 }
777 return dom->methods->sids_to_unixids(dom, maps);
778 }
779
780 dom = idmap_find_domain(domain);
781 if (dom == NULL) {
782 return NT_STATUS_NONE_MAPPED;
783 }
784
785 return dom->methods->sids_to_unixids(dom, maps);
786}
787
788NTSTATUS idmap_set_mapping(const struct id_map *map)
789{
790 struct idmap_domain *dom;
791
792 dom = idmap_find_domain(NULL);
793 if (dom == NULL) {
794 DEBUG(3, ("no default domain, no place to write\n"));
795 return NT_STATUS_ACCESS_DENIED;
796 }
797 if (dom->methods->set_mapping == NULL) {
798 DEBUG(3, ("default domain not writable\n"));
799 return NT_STATUS_MEDIA_WRITE_PROTECTED;
800 }
801
802 return dom->methods->set_mapping(dom, map);
803}
804
805NTSTATUS idmap_remove_mapping(const struct id_map *map)
806{
807 struct idmap_domain *dom;
808
809 dom = idmap_find_domain(NULL);
810 if (dom == NULL) {
811 DEBUG(3, ("no default domain, no place to write\n"));
812 return NT_STATUS_ACCESS_DENIED;
813 }
814 if (dom->methods->remove_mapping == NULL) {
815 DEBUG(3, ("default domain not writable\n"));
816 return NT_STATUS_MEDIA_WRITE_PROTECTED;
817 }
818
819 return dom->methods->remove_mapping(dom, map);
820}
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