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s3-groupdb: fix enum_aliasmem in ldb branch.
[Samba.git] / source / winbindd / idmap_ldap.c
blob53f63103b1d0185c3481e1b1a1edd0bb44cb2bb2
1 /*
2 Unix SMB/CIFS implementation.
3
4 idmap LDAP backend
5
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
8 Copyright (C) Gerald Carter 2003
9 Copyright (C) Simo Sorce 2003-2007
10
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 */
24
25 #include "includes.h"
26 #include "winbindd.h"
27
28 #undef DBGC_CLASS
29 #define DBGC_CLASS DBGC_IDMAP
30
31 #include <lber.h>
32 #include <ldap.h>
33
34 #include "smbldap.h"
35
36 struct idmap_ldap_context {
37 struct smbldap_state *smbldap_state;
38 char *url;
39 char *suffix;
40 char *user_dn;
41 uint32_t filter_low_id, filter_high_id; /* Filter range */
42 bool anon;
43 };
44
45 struct idmap_ldap_alloc_context {
46 struct smbldap_state *smbldap_state;
47 char *url;
48 char *suffix;
49 char *user_dn;
50 uid_t low_uid, high_uid; /* Range of uids */
51 gid_t low_gid, high_gid; /* Range of gids */
52
53 };
54
55 #define CHECK_ALLOC_DONE(mem) do { \
56 if (!mem) { \
57 DEBUG(0, ("Out of memory!\n")); \
58 ret = NT_STATUS_NO_MEMORY; \
59 goto done; \
60 } } while (0)
61
62 /**********************************************************************
63 IDMAP ALLOC TDB BACKEND
64 **********************************************************************/
65
66 static struct idmap_ldap_alloc_context *idmap_alloc_ldap;
67
68 /*********************************************************************
69 ********************************************************************/
70
71 static NTSTATUS get_credentials( TALLOC_CTX *mem_ctx,
72 struct smbldap_state *ldap_state,
73 const char *config_option,
74 struct idmap_domain *dom,
75 char **dn )
76 {
77 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
78 char *secret = NULL;
79 const char *tmp = NULL;
80 char *user_dn = NULL;
81 bool anon = False;
82
83 /* assume anonymous if we don't have a specified user */
84
85 tmp = lp_parm_const_string(-1, config_option, "ldap_user_dn", NULL);
86
87 if ( tmp ) {
88 if (!dom) {
89 /* only the alloc backend can pass in a NULL dom */
90 secret = idmap_fetch_secret("ldap", True,
91 NULL, tmp);
92 } else {
93 secret = idmap_fetch_secret("ldap", False,
94 dom->name, tmp);
95 }
96
97 if (!secret) {
98 DEBUG(0, ("get_credentials: Unable to fetch "
99 "auth credentials for %s in %s\n",
100 tmp, (dom==NULL)?"ALLOC":dom->name));
101 ret = NT_STATUS_ACCESS_DENIED;
102 goto done;
103 }
104 *dn = talloc_strdup(mem_ctx, tmp);
105 CHECK_ALLOC_DONE(*dn);
106 } else {
107 if (!fetch_ldap_pw(&user_dn, &secret)) {
108 DEBUG(2, ("get_credentials: Failed to lookup ldap "
109 "bind creds. Using anonymous connection.\n"));
110 anon = True;
111 } else {
112 *dn = talloc_strdup(mem_ctx, user_dn);
113 SAFE_FREE( user_dn );
114 CHECK_ALLOC_DONE(*dn);
115 }
116 }
117
118 smbldap_set_creds(ldap_state, anon, *dn, secret);
119 ret = NT_STATUS_OK;
120
121 done:
122 SAFE_FREE(secret);
123
124 return ret;
125 }
126
127
128 /**********************************************************************
129 Verify the sambaUnixIdPool entry in the directory.
130 **********************************************************************/
131
132 static NTSTATUS verify_idpool(void)
133 {
134 NTSTATUS ret;
135 TALLOC_CTX *ctx;
136 LDAPMessage *result = NULL;
137 LDAPMod **mods = NULL;
138 const char **attr_list;
139 char *filter;
140 int count;
141 int rc;
142
143 if ( ! idmap_alloc_ldap) {
144 return NT_STATUS_UNSUCCESSFUL;
145 }
146
147 ctx = talloc_new(idmap_alloc_ldap);
148 if ( ! ctx) {
149 DEBUG(0, ("Out of memory!\n"));
150 return NT_STATUS_NO_MEMORY;
151 }
152
153 filter = talloc_asprintf(ctx, "(objectclass=%s)", LDAP_OBJ_IDPOOL);
154 CHECK_ALLOC_DONE(filter);
155
156 attr_list = get_attr_list(ctx, idpool_attr_list);
157 CHECK_ALLOC_DONE(attr_list);
158
159 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
160 idmap_alloc_ldap->suffix,
161 LDAP_SCOPE_SUBTREE,
162 filter,
163 attr_list,
164 0,
165 &result);
166
167 if (rc != LDAP_SUCCESS) {
168 DEBUG(1, ("Unable to verify the idpool, "
169 "cannot continue initialization!\n"));
170 return NT_STATUS_UNSUCCESSFUL;
171 }
172
173 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
174 result);
175
176 ldap_msgfree(result);
177
178 if ( count > 1 ) {
179 DEBUG(0,("Multiple entries returned from %s (base == %s)\n",
180 filter, idmap_alloc_ldap->suffix));
181 ret = NT_STATUS_UNSUCCESSFUL;
182 goto done;
183 }
184 else if (count == 0) {
185 char *uid_str, *gid_str;
186
187 uid_str = talloc_asprintf(ctx, "%lu",
188 (unsigned long)idmap_alloc_ldap->low_uid);
189 gid_str = talloc_asprintf(ctx, "%lu",
190 (unsigned long)idmap_alloc_ldap->low_gid);
191
192 smbldap_set_mod(&mods, LDAP_MOD_ADD,
193 "objectClass", LDAP_OBJ_IDPOOL);
194 smbldap_set_mod(&mods, LDAP_MOD_ADD,
195 get_attr_key2string(idpool_attr_list,
196 LDAP_ATTR_UIDNUMBER),
197 uid_str);
198 smbldap_set_mod(&mods, LDAP_MOD_ADD,
199 get_attr_key2string(idpool_attr_list,
200 LDAP_ATTR_GIDNUMBER),
201 gid_str);
202 if (mods) {
203 rc = smbldap_modify(idmap_alloc_ldap->smbldap_state,
204 idmap_alloc_ldap->suffix,
205 mods);
206 ldap_mods_free(mods, True);
207 } else {
208 ret = NT_STATUS_UNSUCCESSFUL;
209 goto done;
210 }
211 }
212
213 ret = (rc == LDAP_SUCCESS)?NT_STATUS_OK:NT_STATUS_UNSUCCESSFUL;
214 done:
215 talloc_free(ctx);
216 return ret;
217 }
218
219 /*****************************************************************************
220 Initialise idmap database.
221 *****************************************************************************/
222
223 static NTSTATUS idmap_ldap_alloc_init(const char *params)
224 {
225 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
226 const char *range;
227 const char *tmp;
228 uid_t low_uid = 0;
229 uid_t high_uid = 0;
230 gid_t low_gid = 0;
231 gid_t high_gid = 0;
232
233 /* Only do init if we are online */
234 if (idmap_is_offline()) {
235 return NT_STATUS_FILE_IS_OFFLINE;
236 }
237
238 idmap_alloc_ldap = TALLOC_ZERO_P(NULL, struct idmap_ldap_alloc_context);
239 CHECK_ALLOC_DONE( idmap_alloc_ldap );
240
241 /* load ranges */
242
243 idmap_alloc_ldap->low_uid = 0;
244 idmap_alloc_ldap->high_uid = 0;
245 idmap_alloc_ldap->low_gid = 0;
246 idmap_alloc_ldap->high_gid = 0;
247
248 range = lp_parm_const_string(-1, "idmap alloc config", "range", NULL);
249 if (range && range[0]) {
250 unsigned low_id, high_id;
251
252 if (sscanf(range, "%u - %u", &low_id, &high_id) == 2) {
253 if (low_id < high_id) {
254 idmap_alloc_ldap->low_gid = low_id;
255 idmap_alloc_ldap->low_uid = low_id;
256 idmap_alloc_ldap->high_gid = high_id;
257 idmap_alloc_ldap->high_uid = high_id;
258 } else {
259 DEBUG(1, ("ERROR: invalid idmap alloc range "
260 "[%s]", range));
261 }
262 } else {
263 DEBUG(1, ("ERROR: invalid syntax for idmap alloc "
264 "config:range [%s]", range));
265 }
266 }
267
268 if (lp_idmap_uid(&low_uid, &high_uid)) {
269 idmap_alloc_ldap->low_uid = low_uid;
270 idmap_alloc_ldap->high_uid = high_uid;
271 }
272
273 if (lp_idmap_gid(&low_gid, &high_gid)) {
274 idmap_alloc_ldap->low_gid = low_gid;
275 idmap_alloc_ldap->high_gid= high_gid;
276 }
277
278 if (idmap_alloc_ldap->high_uid <= idmap_alloc_ldap->low_uid) {
279 DEBUG(1, ("idmap uid range missing or invalid\n"));
280 DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
281 ret = NT_STATUS_UNSUCCESSFUL;
282 goto done;
283 }
284
285 if (idmap_alloc_ldap->high_gid <= idmap_alloc_ldap->low_gid) {
286 DEBUG(1, ("idmap gid range missing or invalid\n"));
287 DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
288 ret = NT_STATUS_UNSUCCESSFUL;
289 goto done;
290 }
291
292 if (params && *params) {
293 /* assume location is the only parameter */
294 idmap_alloc_ldap->url = talloc_strdup(idmap_alloc_ldap, params);
295 } else {
296 tmp = lp_parm_const_string(-1, "idmap alloc config",
297 "ldap_url", NULL);
298
299 if ( ! tmp) {
300 DEBUG(1, ("ERROR: missing idmap ldap url\n"));
301 ret = NT_STATUS_UNSUCCESSFUL;
302 goto done;
303 }
304
305 idmap_alloc_ldap->url = talloc_strdup(idmap_alloc_ldap, tmp);
306 }
307 CHECK_ALLOC_DONE( idmap_alloc_ldap->url );
308
309 tmp = lp_parm_const_string(-1, "idmap alloc config",
310 "ldap_base_dn", NULL);
311 if ( ! tmp || ! *tmp) {
312 tmp = lp_ldap_idmap_suffix();
313 if ( ! tmp) {
314 DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
315 ret = NT_STATUS_UNSUCCESSFUL;
316 goto done;
317 }
318 }
319
320 idmap_alloc_ldap->suffix = talloc_strdup(idmap_alloc_ldap, tmp);
321 CHECK_ALLOC_DONE( idmap_alloc_ldap->suffix );
322
323 ret = smbldap_init(idmap_alloc_ldap, winbind_event_context(),
324 idmap_alloc_ldap->url,
325 &idmap_alloc_ldap->smbldap_state);
326 if (!NT_STATUS_IS_OK(ret)) {
327 DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n",
328 idmap_alloc_ldap->url));
329 goto done;
330 }
331
332 ret = get_credentials( idmap_alloc_ldap,
333 idmap_alloc_ldap->smbldap_state,
334 "idmap alloc config", NULL,
335 &idmap_alloc_ldap->user_dn );
336 if ( !NT_STATUS_IS_OK(ret) ) {
337 DEBUG(1,("idmap_ldap_alloc_init: Failed to get connection "
338 "credentials (%s)\n", nt_errstr(ret)));
339 goto done;
340 }
341
342 /* see if the idmap suffix and sub entries exists */
343
344 ret = verify_idpool();
345
346 done:
347 if ( !NT_STATUS_IS_OK( ret ) )
348 TALLOC_FREE( idmap_alloc_ldap );
349
350 return ret;
351 }
352
353 /********************************
354 Allocate a new uid or gid
355 ********************************/
356
357 static NTSTATUS idmap_ldap_allocate_id(struct unixid *xid)
358 {
359 TALLOC_CTX *ctx;
360 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
361 int rc = LDAP_SERVER_DOWN;
362 int count = 0;
363 LDAPMessage *result = NULL;
364 LDAPMessage *entry = NULL;
365 LDAPMod **mods = NULL;
366 char *id_str;
367 char *new_id_str;
368 char *filter = NULL;
369 const char *dn = NULL;
370 const char **attr_list;
371 const char *type;
372
373 /* Only do query if we are online */
374 if (idmap_is_offline()) {
375 return NT_STATUS_FILE_IS_OFFLINE;
376 }
377
378 if ( ! idmap_alloc_ldap) {
379 return NT_STATUS_UNSUCCESSFUL;
380 }
381
382 ctx = talloc_new(idmap_alloc_ldap);
383 if ( ! ctx) {
384 DEBUG(0, ("Out of memory!\n"));
385 return NT_STATUS_NO_MEMORY;
386 }
387
388 /* get type */
389 switch (xid->type) {
390
391 case ID_TYPE_UID:
392 type = get_attr_key2string(idpool_attr_list,
393 LDAP_ATTR_UIDNUMBER);
394 break;
395
396 case ID_TYPE_GID:
397 type = get_attr_key2string(idpool_attr_list,
398 LDAP_ATTR_GIDNUMBER);
399 break;
400
401 default:
402 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
403 return NT_STATUS_INVALID_PARAMETER;
404 }
405
406 filter = talloc_asprintf(ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
407 CHECK_ALLOC_DONE(filter);
408
409 attr_list = get_attr_list(ctx, idpool_attr_list);
410 CHECK_ALLOC_DONE(attr_list);
411
412 DEBUG(10, ("Search of the id pool (filter: %s)\n", filter));
413
414 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
415 idmap_alloc_ldap->suffix,
416 LDAP_SCOPE_SUBTREE, filter,
417 attr_list, 0, &result);
418
419 if (rc != LDAP_SUCCESS) {
420 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
421 goto done;
422 }
423
424 talloc_autofree_ldapmsg(ctx, result);
425
426 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
427 result);
428 if (count != 1) {
429 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
430 goto done;
431 }
432
433 entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct,
434 result);
435
436 dn = smbldap_talloc_dn(ctx,
437 idmap_alloc_ldap->smbldap_state->ldap_struct,
438 entry);
439 if ( ! dn) {
440 goto done;
441 }
442
443 if ( ! (id_str = smbldap_talloc_single_attribute(idmap_alloc_ldap->smbldap_state->ldap_struct,
444 entry, type, ctx))) {
445 DEBUG(0,("%s attribute not found\n", type));
446 goto done;
447 }
448 if ( ! id_str) {
449 DEBUG(0,("Out of memory\n"));
450 ret = NT_STATUS_NO_MEMORY;
451 goto done;
452 }
453
454 xid->id = strtoul(id_str, NULL, 10);
455
456 /* make sure we still have room to grow */
457
458 switch (xid->type) {
459 case ID_TYPE_UID:
460 if (xid->id > idmap_alloc_ldap->high_uid) {
461 DEBUG(0,("Cannot allocate uid above %lu!\n",
462 (unsigned long)idmap_alloc_ldap->high_uid));
463 goto done;
464 }
465 break;
466
467 case ID_TYPE_GID:
468 if (xid->id > idmap_alloc_ldap->high_gid) {
469 DEBUG(0,("Cannot allocate gid above %lu!\n",
470 (unsigned long)idmap_alloc_ldap->high_uid));
471 goto done;
472 }
473 break;
474
475 default:
476 /* impossible */
477 goto done;
478 }
479
480 new_id_str = talloc_asprintf(ctx, "%lu", (unsigned long)xid->id + 1);
481 if ( ! new_id_str) {
482 DEBUG(0,("Out of memory\n"));
483 ret = NT_STATUS_NO_MEMORY;
484 goto done;
485 }
486
487 smbldap_set_mod(&mods, LDAP_MOD_DELETE, type, id_str);
488 smbldap_set_mod(&mods, LDAP_MOD_ADD, type, new_id_str);
489
490 if (mods == NULL) {
491 DEBUG(0,("smbldap_set_mod() failed.\n"));
492 goto done;
493 }
494
495 DEBUG(10, ("Try to atomically increment the id (%s -> %s)\n",
496 id_str, new_id_str));
497
498 rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, dn, mods);
499
500 ldap_mods_free(mods, True);
501
502 if (rc != LDAP_SUCCESS) {
503 DEBUG(1,("Failed to allocate new %s. "
504 "smbldap_modify() failed.\n", type));
505 goto done;
506 }
507
508 ret = NT_STATUS_OK;
509
510 done:
511 talloc_free(ctx);
512 return ret;
513 }
514
515 /**********************************
516 Get current highest id.
517 **********************************/
518
519 static NTSTATUS idmap_ldap_get_hwm(struct unixid *xid)
520 {
521 TALLOC_CTX *memctx;
522 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
523 int rc = LDAP_SERVER_DOWN;
524 int count = 0;
525 LDAPMessage *result = NULL;
526 LDAPMessage *entry = NULL;
527 char *id_str;
528 char *filter = NULL;
529 const char **attr_list;
530 const char *type;
531
532 /* Only do query if we are online */
533 if (idmap_is_offline()) {
534 return NT_STATUS_FILE_IS_OFFLINE;
535 }
536
537 if ( ! idmap_alloc_ldap) {
538 return NT_STATUS_UNSUCCESSFUL;
539 }
540
541 memctx = talloc_new(idmap_alloc_ldap);
542 if ( ! memctx) {
543 DEBUG(0, ("Out of memory!\n"));
544 return NT_STATUS_NO_MEMORY;
545 }
546
547 /* get type */
548 switch (xid->type) {
549
550 case ID_TYPE_UID:
551 type = get_attr_key2string(idpool_attr_list,
552 LDAP_ATTR_UIDNUMBER);
553 break;
554
555 case ID_TYPE_GID:
556 type = get_attr_key2string(idpool_attr_list,
557 LDAP_ATTR_GIDNUMBER);
558 break;
559
560 default:
561 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
562 return NT_STATUS_INVALID_PARAMETER;
563 }
564
565 filter = talloc_asprintf(memctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
566 CHECK_ALLOC_DONE(filter);
567
568 attr_list = get_attr_list(memctx, idpool_attr_list);
569 CHECK_ALLOC_DONE(attr_list);
570
571 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
572 idmap_alloc_ldap->suffix,
573 LDAP_SCOPE_SUBTREE, filter,
574 attr_list, 0, &result);
575
576 if (rc != LDAP_SUCCESS) {
577 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
578 goto done;
579 }
580
581 talloc_autofree_ldapmsg(memctx, result);
582
583 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
584 result);
585 if (count != 1) {
586 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
587 goto done;
588 }
589
590 entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct,
591 result);
592
593 id_str = smbldap_talloc_single_attribute(idmap_alloc_ldap->smbldap_state->ldap_struct,
594 entry, type, memctx);
595 if ( ! id_str) {
596 DEBUG(0,("%s attribute not found\n", type));
597 goto done;
598 }
599 if ( ! id_str) {
600 DEBUG(0,("Out of memory\n"));
601 ret = NT_STATUS_NO_MEMORY;
602 goto done;
603 }
604
605 xid->id = strtoul(id_str, NULL, 10);
606
607 ret = NT_STATUS_OK;
608 done:
609 talloc_free(memctx);
610 return ret;
611 }
612 /**********************************
613 Set highest id.
614 **********************************/
615
616 static NTSTATUS idmap_ldap_set_hwm(struct unixid *xid)
617 {
618 TALLOC_CTX *ctx;
619 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
620 int rc = LDAP_SERVER_DOWN;
621 int count = 0;
622 LDAPMessage *result = NULL;
623 LDAPMessage *entry = NULL;
624 LDAPMod **mods = NULL;
625 char *new_id_str;
626 char *filter = NULL;
627 const char *dn = NULL;
628 const char **attr_list;
629 const char *type;
630
631 /* Only do query if we are online */
632 if (idmap_is_offline()) {
633 return NT_STATUS_FILE_IS_OFFLINE;
634 }
635
636 if ( ! idmap_alloc_ldap) {
637 return NT_STATUS_UNSUCCESSFUL;
638 }
639
640 ctx = talloc_new(idmap_alloc_ldap);
641 if ( ! ctx) {
642 DEBUG(0, ("Out of memory!\n"));
643 return NT_STATUS_NO_MEMORY;
644 }
645
646 /* get type */
647 switch (xid->type) {
648
649 case ID_TYPE_UID:
650 type = get_attr_key2string(idpool_attr_list,
651 LDAP_ATTR_UIDNUMBER);
652 break;
653
654 case ID_TYPE_GID:
655 type = get_attr_key2string(idpool_attr_list,
656 LDAP_ATTR_GIDNUMBER);
657 break;
658
659 default:
660 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
661 return NT_STATUS_INVALID_PARAMETER;
662 }
663
664 filter = talloc_asprintf(ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
665 CHECK_ALLOC_DONE(filter);
666
667 attr_list = get_attr_list(ctx, idpool_attr_list);
668 CHECK_ALLOC_DONE(attr_list);
669
670 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
671 idmap_alloc_ldap->suffix,
672 LDAP_SCOPE_SUBTREE, filter,
673 attr_list, 0, &result);
674
675 if (rc != LDAP_SUCCESS) {
676 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
677 goto done;
678 }
679
680 talloc_autofree_ldapmsg(ctx, result);
681
682 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
683 result);
684 if (count != 1) {
685 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
686 goto done;
687 }
688
689 entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct,
690 result);
691
692 dn = smbldap_talloc_dn(ctx,
693 idmap_alloc_ldap->smbldap_state->ldap_struct,
694 entry);
695 if ( ! dn) {
696 goto done;
697 }
698
699 new_id_str = talloc_asprintf(ctx, "%lu", (unsigned long)xid->id);
700 if ( ! new_id_str) {
701 DEBUG(0,("Out of memory\n"));
702 ret = NT_STATUS_NO_MEMORY;
703 goto done;
704 }
705
706 smbldap_set_mod(&mods, LDAP_MOD_REPLACE, type, new_id_str);
707
708 if (mods == NULL) {
709 DEBUG(0,("smbldap_set_mod() failed.\n"));
710 goto done;
711 }
712
713 rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, dn, mods);
714
715 ldap_mods_free(mods, True);
716
717 if (rc != LDAP_SUCCESS) {
718 DEBUG(1,("Failed to allocate new %s. "
719 "smbldap_modify() failed.\n", type));
720 goto done;
721 }
722
723 ret = NT_STATUS_OK;
724
725 done:
726 talloc_free(ctx);
727 return ret;
728 }
729
730 /**********************************
731 Close idmap ldap alloc
732 **********************************/
733
734 static NTSTATUS idmap_ldap_alloc_close(void)
735 {
736 if (idmap_alloc_ldap) {
737 smbldap_free_struct(&idmap_alloc_ldap->smbldap_state);
738 DEBUG(5,("The connection to the LDAP server was closed\n"));
739 /* maybe free the results here --metze */
740 TALLOC_FREE(idmap_alloc_ldap);
741 }
742 return NT_STATUS_OK;
743 }
744
745
746 /**********************************************************************
747 IDMAP MAPPING LDAP BACKEND
748 **********************************************************************/
749
750 static int idmap_ldap_close_destructor(struct idmap_ldap_context *ctx)
751 {
752 smbldap_free_struct(&ctx->smbldap_state);
753 DEBUG(5,("The connection to the LDAP server was closed\n"));
754 /* maybe free the results here --metze */
755
756 return 0;
757 }
758
759 /********************************
760 Initialise idmap database.
761 ********************************/
762
763 static NTSTATUS idmap_ldap_db_init(struct idmap_domain *dom)
764 {
765 NTSTATUS ret;
766 struct idmap_ldap_context *ctx = NULL;
767 char *config_option = NULL;
768 const char *range = NULL;
769 const char *tmp = NULL;
770
771 /* Only do init if we are online */
772 if (idmap_is_offline()) {
773 return NT_STATUS_FILE_IS_OFFLINE;
774 }
775
776 ctx = TALLOC_ZERO_P(dom, struct idmap_ldap_context);
777 if ( ! ctx) {
778 DEBUG(0, ("Out of memory!\n"));
779 return NT_STATUS_NO_MEMORY;
780 }
781
782 config_option = talloc_asprintf(ctx, "idmap config %s", dom->name);
783 if ( ! config_option) {
784 DEBUG(0, ("Out of memory!\n"));
785 ret = NT_STATUS_NO_MEMORY;
786 goto done;
787 }
788
789 /* load ranges */
790 range = lp_parm_const_string(-1, config_option, "range", NULL);
791 if (range && range[0]) {
792 if ((sscanf(range, "%u - %u", &ctx->filter_low_id,
793 &ctx->filter_high_id) != 2) ||
794 (ctx->filter_low_id > ctx->filter_high_id)) {
795 DEBUG(1, ("ERROR: invalid filter range [%s]", range));
796 ctx->filter_low_id = 0;
797 ctx->filter_high_id = 0;
798 }
799 }
800
801 if (dom->params && *(dom->params)) {
802 /* assume location is the only parameter */
803 ctx->url = talloc_strdup(ctx, dom->params);
804 } else {
805 tmp = lp_parm_const_string(-1, config_option, "ldap_url", NULL);
806
807 if ( ! tmp) {
808 DEBUG(1, ("ERROR: missing idmap ldap url\n"));
809 ret = NT_STATUS_UNSUCCESSFUL;
810 goto done;
811 }
812
813 ctx->url = talloc_strdup(ctx, tmp);
814 }
815 CHECK_ALLOC_DONE(ctx->url);
816
817 tmp = lp_parm_const_string(-1, config_option, "ldap_base_dn", NULL);
818 if ( ! tmp || ! *tmp) {
819 tmp = lp_ldap_idmap_suffix();
820 if ( ! tmp) {
821 DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
822 ret = NT_STATUS_UNSUCCESSFUL;
823 goto done;
824 }
825 }
826
827 ctx->suffix = talloc_strdup(ctx, tmp);
828 CHECK_ALLOC_DONE(ctx->suffix);
829
830 ret = smbldap_init(ctx, winbind_event_context(), ctx->url,
831 &ctx->smbldap_state);
832 if (!NT_STATUS_IS_OK(ret)) {
833 DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n", ctx->url));
834 goto done;
835 }
836
837 ret = get_credentials( ctx, ctx->smbldap_state, config_option,
838 dom, &ctx->user_dn );
839 if ( !NT_STATUS_IS_OK(ret) ) {
840 DEBUG(1,("idmap_ldap_db_init: Failed to get connection "
841 "credentials (%s)\n", nt_errstr(ret)));
842 goto done;
843 }
844
845 /* set the destructor on the context, so that resource are properly
846 freed if the contexts is released */
847
848 talloc_set_destructor(ctx, idmap_ldap_close_destructor);
849
850 dom->private_data = ctx;
851 dom->initialized = True;
852
853 talloc_free(config_option);
854 return NT_STATUS_OK;
855
856 /*failed */
857 done:
858 talloc_free(ctx);
859 return ret;
860 }
861
862 /* max number of ids requested per batch query */
863 #define IDMAP_LDAP_MAX_IDS 30
864
865 /**********************************
866 lookup a set of unix ids.
867 **********************************/
868
869 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
870 * in maps for a match */
871 static struct id_map *find_map_by_id(struct id_map **maps,
872 enum id_type type,
873 uint32_t id)
874 {
875 int i;
876
877 for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
878 if (maps[i] == NULL) { /* end of the run */
879 return NULL;
880 }
881 if ((maps[i]->xid.type == type) && (maps[i]->xid.id == id)) {
882 return maps[i];
883 }
884 }
885
886 return NULL;
887 }
888
889 static NTSTATUS idmap_ldap_unixids_to_sids(struct idmap_domain *dom,
890 struct id_map **ids)
891 {
892 NTSTATUS ret;
893 TALLOC_CTX *memctx;
894 struct idmap_ldap_context *ctx;
895 LDAPMessage *result = NULL;
896 const char *uidNumber;
897 const char *gidNumber;
898 const char **attr_list;
899 char *filter = NULL;
900 bool multi = False;
901 int idx = 0;
902 int bidx = 0;
903 int count;
904 int rc;
905 int i;
906
907 /* Only do query if we are online */
908 if (idmap_is_offline()) {
909 return NT_STATUS_FILE_IS_OFFLINE;
910 }
911
912 /* Initilization my have been deferred because we were offline */
913 if ( ! dom->initialized) {
914 ret = idmap_ldap_db_init(dom);
915 if ( ! NT_STATUS_IS_OK(ret)) {
916 return ret;
917 }
918 }
919
920 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
921
922 memctx = talloc_new(ctx);
923 if ( ! memctx) {
924 DEBUG(0, ("Out of memory!\n"));
925 return NT_STATUS_NO_MEMORY;
926 }
927
928 uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
929 gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
930
931 attr_list = get_attr_list(memctx, sidmap_attr_list);
932
933 if ( ! ids[1]) {
934 /* if we are requested just one mapping use the simple filter */
935
936 filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%lu))",
937 LDAP_OBJ_IDMAP_ENTRY,
938 (ids[0]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
939 (unsigned long)ids[0]->xid.id);
940 CHECK_ALLOC_DONE(filter);
941 DEBUG(10, ("Filter: [%s]\n", filter));
942 } else {
943 /* multiple mappings */
944 multi = True;
945 }
946
947 for (i = 0; ids[i]; i++) {
948 ids[i]->status = ID_UNKNOWN;
949 }
950
951 again:
952 if (multi) {
953
954 talloc_free(filter);
955 filter = talloc_asprintf(memctx,
956 "(&(objectClass=%s)(|",
957 LDAP_OBJ_IDMAP_ENTRY);
958 CHECK_ALLOC_DONE(filter);
959
960 bidx = idx;
961 for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
962 filter = talloc_asprintf_append_buffer(filter, "(%s=%lu)",
963 (ids[idx]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
964 (unsigned long)ids[idx]->xid.id);
965 CHECK_ALLOC_DONE(filter);
966 }
967 filter = talloc_asprintf_append_buffer(filter, "))");
968 CHECK_ALLOC_DONE(filter);
969 DEBUG(10, ("Filter: [%s]\n", filter));
970 } else {
971 bidx = 0;
972 idx = 1;
973 }
974
975 rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
976 filter, attr_list, 0, &result);
977
978 if (rc != LDAP_SUCCESS) {
979 DEBUG(3,("Failure looking up ids (%s)\n", ldap_err2string(rc)));
980 ret = NT_STATUS_UNSUCCESSFUL;
981 goto done;
982 }
983
984 count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
985
986 if (count == 0) {
987 DEBUG(10, ("NO SIDs found\n"));
988 }
989
990 for (i = 0; i < count; i++) {
991 LDAPMessage *entry = NULL;
992 char *sidstr = NULL;
993 char *tmp = NULL;
994 enum id_type type;
995 struct id_map *map;
996 uint32_t id;
997
998 if (i == 0) { /* first entry */
999 entry = ldap_first_entry(ctx->smbldap_state->ldap_struct,
1000 result);
1001 } else { /* following ones */
1002 entry = ldap_next_entry(ctx->smbldap_state->ldap_struct,
1003 entry);
1004 }
1005 if ( ! entry) {
1006 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
1007 "from results\n"));
1008 break;
1009 }
1010
1011 /* first check if the SID is present */
1012 sidstr = smbldap_talloc_single_attribute(
1013 ctx->smbldap_state->ldap_struct,
1014 entry, LDAP_ATTRIBUTE_SID, memctx);
1015 if ( ! sidstr) { /* no sid, skip entry */
1016 DEBUG(2, ("WARNING SID not found on entry\n"));
1017 continue;
1018 }
1019
1020 /* now try to see if it is a uid, if not try with a gid
1021 * (gid is more common, but in case both uidNumber and
1022 * gidNumber are returned the SID is mapped to the uid
1023 *not the gid) */
1024 type = ID_TYPE_UID;
1025 tmp = smbldap_talloc_single_attribute(
1026 ctx->smbldap_state->ldap_struct,
1027 entry, uidNumber, memctx);
1028 if ( ! tmp) {
1029 type = ID_TYPE_GID;
1030 tmp = smbldap_talloc_single_attribute(
1031 ctx->smbldap_state->ldap_struct,
1032 entry, gidNumber, memctx);
1033 }
1034 if ( ! tmp) { /* wow very strange entry, how did it match ? */
1035 DEBUG(5, ("Unprobable match on (%s), no uidNumber, "
1036 "nor gidNumber returned\n", sidstr));
1037 TALLOC_FREE(sidstr);
1038 continue;
1039 }
1040
1041 id = strtoul(tmp, NULL, 10);
1042 if ((id == 0) ||
1043 (ctx->filter_low_id && (id < ctx->filter_low_id)) ||
1044 (ctx->filter_high_id && (id > ctx->filter_high_id))) {
1045 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
1046 "Filtered!\n", id,
1047 ctx->filter_low_id, ctx->filter_high_id));
1048 TALLOC_FREE(sidstr);
1049 TALLOC_FREE(tmp);
1050 continue;
1051 }
1052 TALLOC_FREE(tmp);
1053
1054 map = find_map_by_id(&ids[bidx], type, id);
1055 if (!map) {
1056 DEBUG(2, ("WARNING: couldn't match sid (%s) "
1057 "with requested ids\n", sidstr));
1058 TALLOC_FREE(sidstr);
1059 continue;
1060 }
1061
1062 if ( ! string_to_sid(map->sid, sidstr)) {
1063 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
1064 TALLOC_FREE(sidstr);
1065 continue;
1066 }
1067 TALLOC_FREE(sidstr);
1068
1069 /* mapped */
1070 map->status = ID_MAPPED;
1071
1072 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map->sid),
1073 (unsigned long)map->xid.id, map->xid.type));
1074 }
1075
1076 /* free the ldap results */
1077 if (result) {
1078 ldap_msgfree(result);
1079 result = NULL;
1080 }
1081
1082 if (multi && ids[idx]) { /* still some values to map */
1083 goto again;
1084 }
1085
1086 ret = NT_STATUS_OK;
1087
1088 /* mark all unknwon/expired ones as unmapped */
1089 for (i = 0; ids[i]; i++) {
1090 if (ids[i]->status != ID_MAPPED)
1091 ids[i]->status = ID_UNMAPPED;
1092 }
1093
1094 done:
1095 talloc_free(memctx);
1096 return ret;
1097 }
1098
1099 /**********************************
1100 lookup a set of sids.
1101 **********************************/
1102
1103 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
1104 * in maps for a match */
1105 static struct id_map *find_map_by_sid(struct id_map **maps, DOM_SID *sid)
1106 {
1107 int i;
1108
1109 for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
1110 if (maps[i] == NULL) { /* end of the run */
1111 return NULL;
1112 }
1113 if (sid_equal(maps[i]->sid, sid)) {
1114 return maps[i];
1115 }
1116 }
1117
1118 return NULL;
1119 }
1120
1121 static NTSTATUS idmap_ldap_sids_to_unixids(struct idmap_domain *dom,
1122 struct id_map **ids)
1123 {
1124 LDAPMessage *entry = NULL;
1125 NTSTATUS ret;
1126 TALLOC_CTX *memctx;
1127 struct idmap_ldap_context *ctx;
1128 LDAPMessage *result = NULL;
1129 const char *uidNumber;
1130 const char *gidNumber;
1131 const char **attr_list;
1132 char *filter = NULL;
1133 bool multi = False;
1134 int idx = 0;
1135 int bidx = 0;
1136 int count;
1137 int rc;
1138 int i;
1139
1140 /* Only do query if we are online */
1141 if (idmap_is_offline()) {
1142 return NT_STATUS_FILE_IS_OFFLINE;
1143 }
1144
1145 /* Initilization my have been deferred because we were offline */
1146 if ( ! dom->initialized) {
1147 ret = idmap_ldap_db_init(dom);
1148 if ( ! NT_STATUS_IS_OK(ret)) {
1149 return ret;
1150 }
1151 }
1152
1153 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
1154
1155 memctx = talloc_new(ctx);
1156 if ( ! memctx) {
1157 DEBUG(0, ("Out of memory!\n"));
1158 return NT_STATUS_NO_MEMORY;
1159 }
1160
1161 uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
1162 gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
1163
1164 attr_list = get_attr_list(memctx, sidmap_attr_list);
1165
1166 if ( ! ids[1]) {
1167 /* if we are requested just one mapping use the simple filter */
1168
1169 filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%s))",
1170 LDAP_OBJ_IDMAP_ENTRY,
1171 LDAP_ATTRIBUTE_SID,
1172 sid_string_talloc(memctx, ids[0]->sid));
1173 CHECK_ALLOC_DONE(filter);
1174 DEBUG(10, ("Filter: [%s]\n", filter));
1175 } else {
1176 /* multiple mappings */
1177 multi = True;
1178 }
1179
1180 for (i = 0; ids[i]; i++) {
1181 ids[i]->status = ID_UNKNOWN;
1182 }
1183
1184 again:
1185 if (multi) {
1186
1187 TALLOC_FREE(filter);
1188 filter = talloc_asprintf(memctx,
1189 "(&(objectClass=%s)(|",
1190 LDAP_OBJ_IDMAP_ENTRY);
1191 CHECK_ALLOC_DONE(filter);
1192
1193 bidx = idx;
1194 for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
1195 filter = talloc_asprintf_append_buffer(filter, "(%s=%s)",
1196 LDAP_ATTRIBUTE_SID,
1197 sid_string_talloc(memctx,
1198 ids[idx]->sid));
1199 CHECK_ALLOC_DONE(filter);
1200 }
1201 filter = talloc_asprintf_append_buffer(filter, "))");
1202 CHECK_ALLOC_DONE(filter);
1203 DEBUG(10, ("Filter: [%s]", filter));
1204 } else {
1205 bidx = 0;
1206 idx = 1;
1207 }
1208
1209 rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
1210 filter, attr_list, 0, &result);
1211
1212 if (rc != LDAP_SUCCESS) {
1213 DEBUG(3,("Failure looking up sids (%s)\n",
1214 ldap_err2string(rc)));
1215 ret = NT_STATUS_UNSUCCESSFUL;
1216 goto done;
1217 }
1218
1219 count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
1220
1221 if (count == 0) {
1222 DEBUG(10, ("NO SIDs found\n"));
1223 }
1224
1225 for (i = 0; i < count; i++) {
1226 char *sidstr = NULL;
1227 char *tmp = NULL;
1228 enum id_type type;
1229 struct id_map *map;
1230 DOM_SID sid;
1231 uint32_t id;
1232
1233 if (i == 0) { /* first entry */
1234 entry = ldap_first_entry(ctx->smbldap_state->ldap_struct,
1235 result);
1236 } else { /* following ones */
1237 entry = ldap_next_entry(ctx->smbldap_state->ldap_struct,
1238 entry);
1239 }
1240 if ( ! entry) {
1241 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
1242 "from results\n"));
1243 break;
1244 }
1245
1246 /* first check if the SID is present */
1247 sidstr = smbldap_talloc_single_attribute(
1248 ctx->smbldap_state->ldap_struct,
1249 entry, LDAP_ATTRIBUTE_SID, memctx);
1250 if ( ! sidstr) { /* no sid ??, skip entry */
1251 DEBUG(2, ("WARNING SID not found on entry\n"));
1252 continue;
1253 }
1254
1255 if ( ! string_to_sid(&sid, sidstr)) {
1256 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
1257 TALLOC_FREE(sidstr);
1258 continue;
1259 }
1260
1261 map = find_map_by_sid(&ids[bidx], &sid);
1262 if (!map) {
1263 DEBUG(2, ("WARNING: couldn't find entry sid (%s) "
1264 "in ids", sidstr));
1265 TALLOC_FREE(sidstr);
1266 continue;
1267 }
1268
1269 TALLOC_FREE(sidstr);
1270
1271 /* now try to see if it is a uid, if not try with a gid
1272 * (gid is more common, but in case both uidNumber and
1273 * gidNumber are returned the SID is mapped to the uid
1274 * not the gid) */
1275 type = ID_TYPE_UID;
1276 tmp = smbldap_talloc_single_attribute(
1277 ctx->smbldap_state->ldap_struct,
1278 entry, uidNumber, memctx);
1279 if ( ! tmp) {
1280 type = ID_TYPE_GID;
1281 tmp = smbldap_talloc_single_attribute(
1282 ctx->smbldap_state->ldap_struct,
1283 entry, gidNumber, memctx);
1284 }
1285 if ( ! tmp) { /* no ids ?? */
1286 DEBUG(5, ("no uidNumber, "
1287 "nor gidNumber attributes found\n"));
1288 continue;
1289 }
1290
1291 id = strtoul(tmp, NULL, 10);
1292 if ((id == 0) ||
1293 (ctx->filter_low_id && (id < ctx->filter_low_id)) ||
1294 (ctx->filter_high_id && (id > ctx->filter_high_id))) {
1295 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
1296 "Filtered!\n", id,
1297 ctx->filter_low_id, ctx->filter_high_id));
1298 TALLOC_FREE(tmp);
1299 continue;
1300 }
1301 TALLOC_FREE(tmp);
1302
1303 /* mapped */
1304 map->xid.type = type;
1305 map->xid.id = id;
1306 map->status = ID_MAPPED;
1307
1308 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map->sid),
1309 (unsigned long)map->xid.id, map->xid.type));
1310 }
1311
1312 /* free the ldap results */
1313 if (result) {
1314 ldap_msgfree(result);
1315 result = NULL;
1316 }
1317
1318 if (multi && ids[idx]) { /* still some values to map */
1319 goto again;
1320 }
1321
1322 ret = NT_STATUS_OK;
1323
1324 /* mark all unknwon/expired ones as unmapped */
1325 for (i = 0; ids[i]; i++) {
1326 if (ids[i]->status != ID_MAPPED)
1327 ids[i]->status = ID_UNMAPPED;
1328 }
1329
1330 done:
1331 talloc_free(memctx);
1332 return ret;
1333 }
1334
1335 /**********************************
1336 set a mapping.
1337 **********************************/
1338
1339 /* TODO: change this: This function cannot be called to modify a mapping,
1340 * only set a new one */
1341
1342 static NTSTATUS idmap_ldap_set_mapping(struct idmap_domain *dom,
1343 const struct id_map *map)
1344 {
1345 NTSTATUS ret;
1346 TALLOC_CTX *memctx;
1347 struct idmap_ldap_context *ctx;
1348 LDAPMessage *entry = NULL;
1349 LDAPMod **mods = NULL;
1350 const char *type;
1351 char *id_str;
1352 char *sid;
1353 char *dn;
1354 int rc = -1;
1355
1356 /* Only do query if we are online */
1357 if (idmap_is_offline()) {
1358 return NT_STATUS_FILE_IS_OFFLINE;
1359 }
1360
1361 /* Initilization my have been deferred because we were offline */
1362 if ( ! dom->initialized) {
1363 ret = idmap_ldap_db_init(dom);
1364 if ( ! NT_STATUS_IS_OK(ret)) {
1365 return ret;
1366 }
1367 }
1368
1369 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
1370
1371 switch(map->xid.type) {
1372 case ID_TYPE_UID:
1373 type = get_attr_key2string(sidmap_attr_list,
1374 LDAP_ATTR_UIDNUMBER);
1375 break;
1376
1377 case ID_TYPE_GID:
1378 type = get_attr_key2string(sidmap_attr_list,
1379 LDAP_ATTR_GIDNUMBER);
1380 break;
1381
1382 default:
1383 return NT_STATUS_INVALID_PARAMETER;
1384 }
1385
1386 memctx = talloc_new(ctx);
1387 if ( ! memctx) {
1388 DEBUG(0, ("Out of memory!\n"));
1389 return NT_STATUS_NO_MEMORY;
1390 }
1391
1392 id_str = talloc_asprintf(memctx, "%lu", (unsigned long)map->xid.id);
1393 CHECK_ALLOC_DONE(id_str);
1394
1395 sid = talloc_strdup(memctx, sid_string_talloc(memctx, map->sid));
1396 CHECK_ALLOC_DONE(sid);
1397
1398 dn = talloc_asprintf(memctx, "%s=%s,%s",
1399 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
1400 sid,
1401 ctx->suffix);
1402 CHECK_ALLOC_DONE(dn);
1403
1404 smbldap_set_mod(&mods, LDAP_MOD_ADD,
1405 "objectClass", LDAP_OBJ_IDMAP_ENTRY);
1406
1407 smbldap_make_mod(ctx->smbldap_state->ldap_struct,
1408 entry, &mods, type, id_str);
1409
1410 smbldap_make_mod(ctx->smbldap_state->ldap_struct, entry, &mods,
1411 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
1412 sid);
1413
1414 if ( ! mods) {
1415 DEBUG(2, ("ERROR: No mods?\n"));
1416 ret = NT_STATUS_UNSUCCESSFUL;
1417 goto done;
1418 }
1419
1420 /* TODO: remove conflicting mappings! */
1421
1422 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SID_ENTRY);
1423
1424 DEBUG(10, ("Set DN %s (%s -> %s)\n", dn, sid, id_str));
1425
1426 rc = smbldap_add(ctx->smbldap_state, dn, mods);
1427 ldap_mods_free(mods, True);
1428
1429 if (rc != LDAP_SUCCESS) {
1430 char *ld_error = NULL;
1431 ldap_get_option(ctx->smbldap_state->ldap_struct,
1432 LDAP_OPT_ERROR_STRING, &ld_error);
1433 DEBUG(0,("ldap_set_mapping_internals: Failed to add %s to %lu "
1434 "mapping [%s]\n", sid,
1435 (unsigned long)map->xid.id, type));
1436 DEBUG(0, ("ldap_set_mapping_internals: Error was: %s (%s)\n",
1437 ld_error ? ld_error : "(NULL)", ldap_err2string (rc)));
1438 if (ld_error) {
1439 ldap_memfree(ld_error);
1440 }
1441 ret = NT_STATUS_UNSUCCESSFUL;
1442 goto done;
1443 }
1444
1445 DEBUG(10,("ldap_set_mapping: Successfully created mapping from %s to "
1446 "%lu [%s]\n", sid, (unsigned long)map->xid.id, type));
1447
1448 ret = NT_STATUS_OK;
1449
1450 done:
1451 talloc_free(memctx);
1452 return ret;
1453 }
1454
1455 /**********************************
1456 Close the idmap ldap instance
1457 **********************************/
1458
1459 static NTSTATUS idmap_ldap_close(struct idmap_domain *dom)
1460 {
1461 struct idmap_ldap_context *ctx;
1462
1463 if (dom->private_data) {
1464 ctx = talloc_get_type(dom->private_data,
1465 struct idmap_ldap_context);
1466
1467 talloc_free(ctx);
1468 dom->private_data = NULL;
1469 }
1470
1471 return NT_STATUS_OK;
1472 }
1473
1474 static struct idmap_methods idmap_ldap_methods = {
1475
1476 .init = idmap_ldap_db_init,
1477 .unixids_to_sids = idmap_ldap_unixids_to_sids,
1478 .sids_to_unixids = idmap_ldap_sids_to_unixids,
1479 .set_mapping = idmap_ldap_set_mapping,
1480 .close_fn = idmap_ldap_close
1481 };
1482
1483 static struct idmap_alloc_methods idmap_ldap_alloc_methods = {
1484
1485 .init = idmap_ldap_alloc_init,
1486 .allocate_id = idmap_ldap_allocate_id,
1487 .get_id_hwm = idmap_ldap_get_hwm,
1488 .set_id_hwm = idmap_ldap_set_hwm,
1489 .close_fn = idmap_ldap_alloc_close,
1490 /* .dump_data = TODO */
1491 };
1492
1493 NTSTATUS idmap_alloc_ldap_init(void)
1494 {
1495 return smb_register_idmap_alloc(SMB_IDMAP_INTERFACE_VERSION, "ldap",
1496 &idmap_ldap_alloc_methods);
1497 }
1498
1499 NTSTATUS idmap_ldap_init(void)
1500 {
1501 NTSTATUS ret;
1502
1503 /* FIXME: bad hack to actually register also the alloc_ldap module
1504 * without changining configure.in */
1505 ret = idmap_alloc_ldap_init();
1506 if (! NT_STATUS_IS_OK(ret)) {
1507 return ret;
1508 }
1509 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "ldap",
1510 &idmap_ldap_methods);
1511 }
1512
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