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idmap rewrite
[Samba.git] / source / winbindd / idmap_ldap.c
blob64b176389e86cbb52490aada6543467177b30776
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 static char *idmap_fetch_secret(const char *backend, bool alloc,
37 const char *domain, const char *identity)
38 {
39 char *tmp, *ret;
40 int r;
41
42 if (alloc) {
43 r = asprintf(&tmp, "IDMAP_ALLOC_%s", backend);
44 } else {
45 r = asprintf(&tmp, "IDMAP_%s_%s", backend, domain);
46 }
47
48 if (r < 0)
49 return NULL;
50
51 strupper_m(tmp); /* make sure the key is case insensitive */
52 ret = secrets_fetch_generic(tmp, identity);
53
54 SAFE_FREE(tmp);
55
56 return ret;
57 }
58
59 struct idmap_ldap_context {
60 struct smbldap_state *smbldap_state;
61 char *url;
62 char *suffix;
63 char *user_dn;
64 uint32_t filter_low_id, filter_high_id; /* Filter range */
65 bool anon;
66 };
67
68 struct idmap_ldap_alloc_context {
69 struct smbldap_state *smbldap_state;
70 char *url;
71 char *suffix;
72 char *user_dn;
73 uid_t low_uid, high_uid; /* Range of uids */
74 gid_t low_gid, high_gid; /* Range of gids */
75
76 };
77
78 #define CHECK_ALLOC_DONE(mem) do { \
79 if (!mem) { \
80 DEBUG(0, ("Out of memory!\n")); \
81 ret = NT_STATUS_NO_MEMORY; \
82 goto done; \
83 } } while (0)
84
85 /**********************************************************************
86 IDMAP ALLOC TDB BACKEND
87 **********************************************************************/
88
89 static struct idmap_ldap_alloc_context *idmap_alloc_ldap;
90
91 /*********************************************************************
92 ********************************************************************/
93
94 static NTSTATUS get_credentials( TALLOC_CTX *mem_ctx,
95 struct smbldap_state *ldap_state,
96 const char *config_option,
97 struct idmap_domain *dom,
98 char **dn )
99 {
100 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
101 char *secret = NULL;
102 const char *tmp = NULL;
103 char *user_dn = NULL;
104 bool anon = False;
105
106 /* assume anonymous if we don't have a specified user */
107
108 tmp = lp_parm_const_string(-1, config_option, "ldap_user_dn", NULL);
109
110 if ( tmp ) {
111 if (!dom) {
112 /* only the alloc backend can pass in a NULL dom */
113 secret = idmap_fetch_secret("ldap", True,
114 NULL, tmp);
115 } else {
116 secret = idmap_fetch_secret("ldap", False,
117 dom->name, tmp);
118 }
119
120 if (!secret) {
121 DEBUG(0, ("get_credentials: Unable to fetch "
122 "auth credentials for %s in %s\n",
123 tmp, (dom==NULL)?"ALLOC":dom->name));
124 ret = NT_STATUS_ACCESS_DENIED;
125 goto done;
126 }
127 *dn = talloc_strdup(mem_ctx, tmp);
128 CHECK_ALLOC_DONE(*dn);
129 } else {
130 if (!fetch_ldap_pw(&user_dn, &secret)) {
131 DEBUG(2, ("get_credentials: Failed to lookup ldap "
132 "bind creds. Using anonymous connection.\n"));
133 anon = True;
134 } else {
135 *dn = talloc_strdup(mem_ctx, user_dn);
136 SAFE_FREE( user_dn );
137 CHECK_ALLOC_DONE(*dn);
138 }
139 }
140
141 smbldap_set_creds(ldap_state, anon, *dn, secret);
142 ret = NT_STATUS_OK;
143
144 done:
145 SAFE_FREE(secret);
146
147 return ret;
148 }
149
150
151 /**********************************************************************
152 Verify the sambaUnixIdPool entry in the directory.
153 **********************************************************************/
154
155 static NTSTATUS verify_idpool(void)
156 {
157 NTSTATUS ret;
158 TALLOC_CTX *ctx;
159 LDAPMessage *result = NULL;
160 LDAPMod **mods = NULL;
161 const char **attr_list;
162 char *filter;
163 int count;
164 int rc;
165
166 if ( ! idmap_alloc_ldap) {
167 return NT_STATUS_UNSUCCESSFUL;
168 }
169
170 ctx = talloc_new(idmap_alloc_ldap);
171 if ( ! ctx) {
172 DEBUG(0, ("Out of memory!\n"));
173 return NT_STATUS_NO_MEMORY;
174 }
175
176 filter = talloc_asprintf(ctx, "(objectclass=%s)", LDAP_OBJ_IDPOOL);
177 CHECK_ALLOC_DONE(filter);
178
179 attr_list = get_attr_list(ctx, idpool_attr_list);
180 CHECK_ALLOC_DONE(attr_list);
181
182 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
183 idmap_alloc_ldap->suffix,
184 LDAP_SCOPE_SUBTREE,
185 filter,
186 attr_list,
187 0,
188 &result);
189
190 if (rc != LDAP_SUCCESS) {
191 DEBUG(1, ("Unable to verify the idpool, "
192 "cannot continue initialization!\n"));
193 return NT_STATUS_UNSUCCESSFUL;
194 }
195
196 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
197 result);
198
199 ldap_msgfree(result);
200
201 if ( count > 1 ) {
202 DEBUG(0,("Multiple entries returned from %s (base == %s)\n",
203 filter, idmap_alloc_ldap->suffix));
204 ret = NT_STATUS_UNSUCCESSFUL;
205 goto done;
206 }
207 else if (count == 0) {
208 char *uid_str, *gid_str;
209
210 uid_str = talloc_asprintf(ctx, "%lu",
211 (unsigned long)idmap_alloc_ldap->low_uid);
212 gid_str = talloc_asprintf(ctx, "%lu",
213 (unsigned long)idmap_alloc_ldap->low_gid);
214
215 smbldap_set_mod(&mods, LDAP_MOD_ADD,
216 "objectClass", LDAP_OBJ_IDPOOL);
217 smbldap_set_mod(&mods, LDAP_MOD_ADD,
218 get_attr_key2string(idpool_attr_list,
219 LDAP_ATTR_UIDNUMBER),
220 uid_str);
221 smbldap_set_mod(&mods, LDAP_MOD_ADD,
222 get_attr_key2string(idpool_attr_list,
223 LDAP_ATTR_GIDNUMBER),
224 gid_str);
225 if (mods) {
226 rc = smbldap_modify(idmap_alloc_ldap->smbldap_state,
227 idmap_alloc_ldap->suffix,
228 mods);
229 ldap_mods_free(mods, True);
230 } else {
231 ret = NT_STATUS_UNSUCCESSFUL;
232 goto done;
233 }
234 }
235
236 ret = (rc == LDAP_SUCCESS)?NT_STATUS_OK:NT_STATUS_UNSUCCESSFUL;
237 done:
238 talloc_free(ctx);
239 return ret;
240 }
241
242 /*****************************************************************************
243 Initialise idmap database.
244 *****************************************************************************/
245
246 static NTSTATUS idmap_ldap_alloc_init(const char *params)
247 {
248 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
249 const char *range;
250 const char *tmp;
251 uid_t low_uid = 0;
252 uid_t high_uid = 0;
253 gid_t low_gid = 0;
254 gid_t high_gid = 0;
255
256 /* Only do init if we are online */
257 if (idmap_is_offline()) {
258 return NT_STATUS_FILE_IS_OFFLINE;
259 }
260
261 idmap_alloc_ldap = TALLOC_ZERO_P(NULL, struct idmap_ldap_alloc_context);
262 CHECK_ALLOC_DONE( idmap_alloc_ldap );
263
264 /* load ranges */
265
266 idmap_alloc_ldap->low_uid = 0;
267 idmap_alloc_ldap->high_uid = 0;
268 idmap_alloc_ldap->low_gid = 0;
269 idmap_alloc_ldap->high_gid = 0;
270
271 range = lp_parm_const_string(-1, "idmap alloc config", "range", NULL);
272 if (range && range[0]) {
273 unsigned low_id, high_id;
274
275 if (sscanf(range, "%u - %u", &low_id, &high_id) == 2) {
276 if (low_id < high_id) {
277 idmap_alloc_ldap->low_gid = low_id;
278 idmap_alloc_ldap->low_uid = low_id;
279 idmap_alloc_ldap->high_gid = high_id;
280 idmap_alloc_ldap->high_uid = high_id;
281 } else {
282 DEBUG(1, ("ERROR: invalid idmap alloc range "
283 "[%s]", range));
284 }
285 } else {
286 DEBUG(1, ("ERROR: invalid syntax for idmap alloc "
287 "config:range [%s]", range));
288 }
289 }
290
291 if (lp_idmap_uid(&low_uid, &high_uid)) {
292 idmap_alloc_ldap->low_uid = low_uid;
293 idmap_alloc_ldap->high_uid = high_uid;
294 }
295
296 if (lp_idmap_gid(&low_gid, &high_gid)) {
297 idmap_alloc_ldap->low_gid = low_gid;
298 idmap_alloc_ldap->high_gid= high_gid;
299 }
300
301 if (idmap_alloc_ldap->high_uid <= idmap_alloc_ldap->low_uid) {
302 DEBUG(1, ("idmap uid range missing or invalid\n"));
303 DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
304 ret = NT_STATUS_UNSUCCESSFUL;
305 goto done;
306 }
307
308 if (idmap_alloc_ldap->high_gid <= idmap_alloc_ldap->low_gid) {
309 DEBUG(1, ("idmap gid range missing or invalid\n"));
310 DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
311 ret = NT_STATUS_UNSUCCESSFUL;
312 goto done;
313 }
314
315 if (params && *params) {
316 /* assume location is the only parameter */
317 idmap_alloc_ldap->url = talloc_strdup(idmap_alloc_ldap, params);
318 } else {
319 tmp = lp_parm_const_string(-1, "idmap alloc config",
320 "ldap_url", NULL);
321
322 if ( ! tmp) {
323 DEBUG(1, ("ERROR: missing idmap ldap url\n"));
324 ret = NT_STATUS_UNSUCCESSFUL;
325 goto done;
326 }
327
328 idmap_alloc_ldap->url = talloc_strdup(idmap_alloc_ldap, tmp);
329 }
330 CHECK_ALLOC_DONE( idmap_alloc_ldap->url );
331
332 tmp = lp_parm_const_string(-1, "idmap alloc config",
333 "ldap_base_dn", NULL);
334 if ( ! tmp || ! *tmp) {
335 tmp = lp_ldap_idmap_suffix();
336 if ( ! tmp) {
337 DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
338 ret = NT_STATUS_UNSUCCESSFUL;
339 goto done;
340 }
341 }
342
343 idmap_alloc_ldap->suffix = talloc_strdup(idmap_alloc_ldap, tmp);
344 CHECK_ALLOC_DONE( idmap_alloc_ldap->suffix );
345
346 ret = smbldap_init(idmap_alloc_ldap, winbind_event_context(),
347 idmap_alloc_ldap->url,
348 &idmap_alloc_ldap->smbldap_state);
349 if (!NT_STATUS_IS_OK(ret)) {
350 DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n",
351 idmap_alloc_ldap->url));
352 goto done;
353 }
354
355 ret = get_credentials( idmap_alloc_ldap,
356 idmap_alloc_ldap->smbldap_state,
357 "idmap alloc config", NULL,
358 &idmap_alloc_ldap->user_dn );
359 if ( !NT_STATUS_IS_OK(ret) ) {
360 DEBUG(1,("idmap_ldap_alloc_init: Failed to get connection "
361 "credentials (%s)\n", nt_errstr(ret)));
362 goto done;
363 }
364
365 /* see if the idmap suffix and sub entries exists */
366
367 ret = verify_idpool();
368
369 done:
370 if ( !NT_STATUS_IS_OK( ret ) )
371 TALLOC_FREE( idmap_alloc_ldap );
372
373 return ret;
374 }
375
376 /********************************
377 Allocate a new uid or gid
378 ********************************/
379
380 static NTSTATUS idmap_ldap_allocate_id(struct unixid *xid)
381 {
382 TALLOC_CTX *ctx;
383 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
384 int rc = LDAP_SERVER_DOWN;
385 int count = 0;
386 LDAPMessage *result = NULL;
387 LDAPMessage *entry = NULL;
388 LDAPMod **mods = NULL;
389 char *id_str;
390 char *new_id_str;
391 char *filter = NULL;
392 const char *dn = NULL;
393 const char **attr_list;
394 const char *type;
395
396 /* Only do query if we are online */
397 if (idmap_is_offline()) {
398 return NT_STATUS_FILE_IS_OFFLINE;
399 }
400
401 if ( ! idmap_alloc_ldap) {
402 return NT_STATUS_UNSUCCESSFUL;
403 }
404
405 ctx = talloc_new(idmap_alloc_ldap);
406 if ( ! ctx) {
407 DEBUG(0, ("Out of memory!\n"));
408 return NT_STATUS_NO_MEMORY;
409 }
410
411 /* get type */
412 switch (xid->type) {
413
414 case ID_TYPE_UID:
415 type = get_attr_key2string(idpool_attr_list,
416 LDAP_ATTR_UIDNUMBER);
417 break;
418
419 case ID_TYPE_GID:
420 type = get_attr_key2string(idpool_attr_list,
421 LDAP_ATTR_GIDNUMBER);
422 break;
423
424 default:
425 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
426 return NT_STATUS_INVALID_PARAMETER;
427 }
428
429 filter = talloc_asprintf(ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
430 CHECK_ALLOC_DONE(filter);
431
432 attr_list = get_attr_list(ctx, idpool_attr_list);
433 CHECK_ALLOC_DONE(attr_list);
434
435 DEBUG(10, ("Search of the id pool (filter: %s)\n", filter));
436
437 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
438 idmap_alloc_ldap->suffix,
439 LDAP_SCOPE_SUBTREE, filter,
440 attr_list, 0, &result);
441
442 if (rc != LDAP_SUCCESS) {
443 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
444 goto done;
445 }
446
447 talloc_autofree_ldapmsg(ctx, result);
448
449 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
450 result);
451 if (count != 1) {
452 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
453 goto done;
454 }
455
456 entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct,
457 result);
458
459 dn = smbldap_talloc_dn(ctx,
460 idmap_alloc_ldap->smbldap_state->ldap_struct,
461 entry);
462 if ( ! dn) {
463 goto done;
464 }
465
466 if ( ! (id_str = smbldap_talloc_single_attribute(idmap_alloc_ldap->smbldap_state->ldap_struct,
467 entry, type, ctx))) {
468 DEBUG(0,("%s attribute not found\n", type));
469 goto done;
470 }
471 if ( ! id_str) {
472 DEBUG(0,("Out of memory\n"));
473 ret = NT_STATUS_NO_MEMORY;
474 goto done;
475 }
476
477 xid->id = strtoul(id_str, NULL, 10);
478
479 /* make sure we still have room to grow */
480
481 switch (xid->type) {
482 case ID_TYPE_UID:
483 if (xid->id > idmap_alloc_ldap->high_uid) {
484 DEBUG(0,("Cannot allocate uid above %lu!\n",
485 (unsigned long)idmap_alloc_ldap->high_uid));
486 goto done;
487 }
488 break;
489
490 case ID_TYPE_GID:
491 if (xid->id > idmap_alloc_ldap->high_gid) {
492 DEBUG(0,("Cannot allocate gid above %lu!\n",
493 (unsigned long)idmap_alloc_ldap->high_uid));
494 goto done;
495 }
496 break;
497
498 default:
499 /* impossible */
500 goto done;
501 }
502
503 new_id_str = talloc_asprintf(ctx, "%lu", (unsigned long)xid->id + 1);
504 if ( ! new_id_str) {
505 DEBUG(0,("Out of memory\n"));
506 ret = NT_STATUS_NO_MEMORY;
507 goto done;
508 }
509
510 smbldap_set_mod(&mods, LDAP_MOD_DELETE, type, id_str);
511 smbldap_set_mod(&mods, LDAP_MOD_ADD, type, new_id_str);
512
513 if (mods == NULL) {
514 DEBUG(0,("smbldap_set_mod() failed.\n"));
515 goto done;
516 }
517
518 DEBUG(10, ("Try to atomically increment the id (%s -> %s)\n",
519 id_str, new_id_str));
520
521 rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, dn, mods);
522
523 ldap_mods_free(mods, True);
524
525 if (rc != LDAP_SUCCESS) {
526 DEBUG(1,("Failed to allocate new %s. "
527 "smbldap_modify() failed.\n", type));
528 goto done;
529 }
530
531 ret = NT_STATUS_OK;
532
533 done:
534 talloc_free(ctx);
535 return ret;
536 }
537
538 /**********************************
539 Get current highest id.
540 **********************************/
541
542 static NTSTATUS idmap_ldap_get_hwm(struct unixid *xid)
543 {
544 TALLOC_CTX *memctx;
545 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
546 int rc = LDAP_SERVER_DOWN;
547 int count = 0;
548 LDAPMessage *result = NULL;
549 LDAPMessage *entry = NULL;
550 char *id_str;
551 char *filter = NULL;
552 const char **attr_list;
553 const char *type;
554
555 /* Only do query if we are online */
556 if (idmap_is_offline()) {
557 return NT_STATUS_FILE_IS_OFFLINE;
558 }
559
560 if ( ! idmap_alloc_ldap) {
561 return NT_STATUS_UNSUCCESSFUL;
562 }
563
564 memctx = talloc_new(idmap_alloc_ldap);
565 if ( ! memctx) {
566 DEBUG(0, ("Out of memory!\n"));
567 return NT_STATUS_NO_MEMORY;
568 }
569
570 /* get type */
571 switch (xid->type) {
572
573 case ID_TYPE_UID:
574 type = get_attr_key2string(idpool_attr_list,
575 LDAP_ATTR_UIDNUMBER);
576 break;
577
578 case ID_TYPE_GID:
579 type = get_attr_key2string(idpool_attr_list,
580 LDAP_ATTR_GIDNUMBER);
581 break;
582
583 default:
584 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
585 return NT_STATUS_INVALID_PARAMETER;
586 }
587
588 filter = talloc_asprintf(memctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
589 CHECK_ALLOC_DONE(filter);
590
591 attr_list = get_attr_list(memctx, idpool_attr_list);
592 CHECK_ALLOC_DONE(attr_list);
593
594 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
595 idmap_alloc_ldap->suffix,
596 LDAP_SCOPE_SUBTREE, filter,
597 attr_list, 0, &result);
598
599 if (rc != LDAP_SUCCESS) {
600 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
601 goto done;
602 }
603
604 talloc_autofree_ldapmsg(memctx, result);
605
606 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
607 result);
608 if (count != 1) {
609 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
610 goto done;
611 }
612
613 entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct,
614 result);
615
616 id_str = smbldap_talloc_single_attribute(idmap_alloc_ldap->smbldap_state->ldap_struct,
617 entry, type, memctx);
618 if ( ! id_str) {
619 DEBUG(0,("%s attribute not found\n", type));
620 goto done;
621 }
622 if ( ! id_str) {
623 DEBUG(0,("Out of memory\n"));
624 ret = NT_STATUS_NO_MEMORY;
625 goto done;
626 }
627
628 xid->id = strtoul(id_str, NULL, 10);
629
630 ret = NT_STATUS_OK;
631 done:
632 talloc_free(memctx);
633 return ret;
634 }
635 /**********************************
636 Set highest id.
637 **********************************/
638
639 static NTSTATUS idmap_ldap_set_hwm(struct unixid *xid)
640 {
641 TALLOC_CTX *ctx;
642 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
643 int rc = LDAP_SERVER_DOWN;
644 int count = 0;
645 LDAPMessage *result = NULL;
646 LDAPMessage *entry = NULL;
647 LDAPMod **mods = NULL;
648 char *new_id_str;
649 char *filter = NULL;
650 const char *dn = NULL;
651 const char **attr_list;
652 const char *type;
653
654 /* Only do query if we are online */
655 if (idmap_is_offline()) {
656 return NT_STATUS_FILE_IS_OFFLINE;
657 }
658
659 if ( ! idmap_alloc_ldap) {
660 return NT_STATUS_UNSUCCESSFUL;
661 }
662
663 ctx = talloc_new(idmap_alloc_ldap);
664 if ( ! ctx) {
665 DEBUG(0, ("Out of memory!\n"));
666 return NT_STATUS_NO_MEMORY;
667 }
668
669 /* get type */
670 switch (xid->type) {
671
672 case ID_TYPE_UID:
673 type = get_attr_key2string(idpool_attr_list,
674 LDAP_ATTR_UIDNUMBER);
675 break;
676
677 case ID_TYPE_GID:
678 type = get_attr_key2string(idpool_attr_list,
679 LDAP_ATTR_GIDNUMBER);
680 break;
681
682 default:
683 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
684 return NT_STATUS_INVALID_PARAMETER;
685 }
686
687 filter = talloc_asprintf(ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
688 CHECK_ALLOC_DONE(filter);
689
690 attr_list = get_attr_list(ctx, idpool_attr_list);
691 CHECK_ALLOC_DONE(attr_list);
692
693 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
694 idmap_alloc_ldap->suffix,
695 LDAP_SCOPE_SUBTREE, filter,
696 attr_list, 0, &result);
697
698 if (rc != LDAP_SUCCESS) {
699 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
700 goto done;
701 }
702
703 talloc_autofree_ldapmsg(ctx, result);
704
705 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
706 result);
707 if (count != 1) {
708 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
709 goto done;
710 }
711
712 entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct,
713 result);
714
715 dn = smbldap_talloc_dn(ctx,
716 idmap_alloc_ldap->smbldap_state->ldap_struct,
717 entry);
718 if ( ! dn) {
719 goto done;
720 }
721
722 new_id_str = talloc_asprintf(ctx, "%lu", (unsigned long)xid->id);
723 if ( ! new_id_str) {
724 DEBUG(0,("Out of memory\n"));
725 ret = NT_STATUS_NO_MEMORY;
726 goto done;
727 }
728
729 smbldap_set_mod(&mods, LDAP_MOD_REPLACE, type, new_id_str);
730
731 if (mods == NULL) {
732 DEBUG(0,("smbldap_set_mod() failed.\n"));
733 goto done;
734 }
735
736 rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, dn, mods);
737
738 ldap_mods_free(mods, True);
739
740 if (rc != LDAP_SUCCESS) {
741 DEBUG(1,("Failed to allocate new %s. "
742 "smbldap_modify() failed.\n", type));
743 goto done;
744 }
745
746 ret = NT_STATUS_OK;
747
748 done:
749 talloc_free(ctx);
750 return ret;
751 }
752
753 /**********************************
754 Close idmap ldap alloc
755 **********************************/
756
757 static NTSTATUS idmap_ldap_alloc_close(void)
758 {
759 if (idmap_alloc_ldap) {
760 smbldap_free_struct(&idmap_alloc_ldap->smbldap_state);
761 DEBUG(5,("The connection to the LDAP server was closed\n"));
762 /* maybe free the results here --metze */
763 TALLOC_FREE(idmap_alloc_ldap);
764 }
765 return NT_STATUS_OK;
766 }
767
768
769 /**********************************************************************
770 IDMAP MAPPING LDAP BACKEND
771 **********************************************************************/
772
773 static int idmap_ldap_close_destructor(struct idmap_ldap_context *ctx)
774 {
775 smbldap_free_struct(&ctx->smbldap_state);
776 DEBUG(5,("The connection to the LDAP server was closed\n"));
777 /* maybe free the results here --metze */
778
779 return 0;
780 }
781
782 /********************************
783 Initialise idmap database.
784 ********************************/
785
786 static NTSTATUS idmap_ldap_db_init(struct idmap_domain *dom,
787 const char *params)
788 {
789 NTSTATUS ret;
790 struct idmap_ldap_context *ctx = NULL;
791 char *config_option = NULL;
792 const char *range = NULL;
793 const char *tmp = NULL;
794
795 /* Only do init if we are online */
796 if (idmap_is_offline()) {
797 return NT_STATUS_FILE_IS_OFFLINE;
798 }
799
800 ctx = TALLOC_ZERO_P(dom, struct idmap_ldap_context);
801 if ( ! ctx) {
802 DEBUG(0, ("Out of memory!\n"));
803 return NT_STATUS_NO_MEMORY;
804 }
805
806 config_option = talloc_asprintf(ctx, "idmap config %s", dom->name);
807 if ( ! config_option) {
808 DEBUG(0, ("Out of memory!\n"));
809 ret = NT_STATUS_NO_MEMORY;
810 goto done;
811 }
812
813 /* load ranges */
814 range = lp_parm_const_string(-1, config_option, "range", NULL);
815 if (range && range[0]) {
816 if ((sscanf(range, "%u - %u", &ctx->filter_low_id,
817 &ctx->filter_high_id) != 2) ||
818 (ctx->filter_low_id > ctx->filter_high_id)) {
819 DEBUG(1, ("ERROR: invalid filter range [%s]", range));
820 ctx->filter_low_id = 0;
821 ctx->filter_high_id = 0;
822 }
823 }
824
825 if (params != NULL) {
826 /* assume location is the only parameter */
827 ctx->url = talloc_strdup(ctx, params);
828 } else {
829 tmp = lp_parm_const_string(-1, config_option, "ldap_url", NULL);
830
831 if ( ! tmp) {
832 DEBUG(1, ("ERROR: missing idmap ldap url\n"));
833 ret = NT_STATUS_UNSUCCESSFUL;
834 goto done;
835 }
836
837 ctx->url = talloc_strdup(ctx, tmp);
838 }
839 CHECK_ALLOC_DONE(ctx->url);
840
841 tmp = lp_parm_const_string(-1, config_option, "ldap_base_dn", NULL);
842 if ( ! tmp || ! *tmp) {
843 tmp = lp_ldap_idmap_suffix();
844 if ( ! tmp) {
845 DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
846 ret = NT_STATUS_UNSUCCESSFUL;
847 goto done;
848 }
849 }
850
851 ctx->suffix = talloc_strdup(ctx, tmp);
852 CHECK_ALLOC_DONE(ctx->suffix);
853
854 ret = smbldap_init(ctx, winbind_event_context(), ctx->url,
855 &ctx->smbldap_state);
856 if (!NT_STATUS_IS_OK(ret)) {
857 DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n", ctx->url));
858 goto done;
859 }
860
861 ret = get_credentials( ctx, ctx->smbldap_state, config_option,
862 dom, &ctx->user_dn );
863 if ( !NT_STATUS_IS_OK(ret) ) {
864 DEBUG(1,("idmap_ldap_db_init: Failed to get connection "
865 "credentials (%s)\n", nt_errstr(ret)));
866 goto done;
867 }
868
869 /* set the destructor on the context, so that resource are properly
870 freed if the contexts is released */
871
872 talloc_set_destructor(ctx, idmap_ldap_close_destructor);
873
874 dom->private_data = ctx;
875
876 talloc_free(config_option);
877 return NT_STATUS_OK;
878
879 /*failed */
880 done:
881 talloc_free(ctx);
882 return ret;
883 }
884
885 /* max number of ids requested per batch query */
886 #define IDMAP_LDAP_MAX_IDS 30
887
888 /**********************************
889 lookup a set of unix ids.
890 **********************************/
891
892 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
893 * in maps for a match */
894 static struct id_map *find_map_by_id(struct id_map **maps,
895 enum id_type type,
896 uint32_t id)
897 {
898 int i;
899
900 for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
901 if (maps[i] == NULL) { /* end of the run */
902 return NULL;
903 }
904 if ((maps[i]->xid.type == type) && (maps[i]->xid.id == id)) {
905 return maps[i];
906 }
907 }
908
909 return NULL;
910 }
911
912 static NTSTATUS idmap_ldap_unixids_to_sids(struct idmap_domain *dom,
913 struct id_map **ids)
914 {
915 NTSTATUS ret;
916 TALLOC_CTX *memctx;
917 struct idmap_ldap_context *ctx;
918 LDAPMessage *result = NULL;
919 const char *uidNumber;
920 const char *gidNumber;
921 const char **attr_list;
922 char *filter = NULL;
923 bool multi = False;
924 int idx = 0;
925 int bidx = 0;
926 int count;
927 int rc;
928 int i;
929
930 /* Only do query if we are online */
931 if (idmap_is_offline()) {
932 return NT_STATUS_FILE_IS_OFFLINE;
933 }
934
935 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
936
937 memctx = talloc_new(ctx);
938 if ( ! memctx) {
939 DEBUG(0, ("Out of memory!\n"));
940 return NT_STATUS_NO_MEMORY;
941 }
942
943 uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
944 gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
945
946 attr_list = get_attr_list(memctx, sidmap_attr_list);
947
948 if ( ! ids[1]) {
949 /* if we are requested just one mapping use the simple filter */
950
951 filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%lu))",
952 LDAP_OBJ_IDMAP_ENTRY,
953 (ids[0]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
954 (unsigned long)ids[0]->xid.id);
955 CHECK_ALLOC_DONE(filter);
956 DEBUG(10, ("Filter: [%s]\n", filter));
957 } else {
958 /* multiple mappings */
959 multi = True;
960 }
961
962 again:
963 if (multi) {
964
965 talloc_free(filter);
966 filter = talloc_asprintf(memctx,
967 "(&(objectClass=%s)(|",
968 LDAP_OBJ_IDMAP_ENTRY);
969 CHECK_ALLOC_DONE(filter);
970
971 bidx = idx;
972 for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
973 filter = talloc_asprintf_append_buffer(filter, "(%s=%lu)",
974 (ids[idx]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
975 (unsigned long)ids[idx]->xid.id);
976 CHECK_ALLOC_DONE(filter);
977 }
978 filter = talloc_asprintf_append_buffer(filter, "))");
979 CHECK_ALLOC_DONE(filter);
980 DEBUG(10, ("Filter: [%s]\n", filter));
981 } else {
982 bidx = 0;
983 idx = 1;
984 }
985
986 rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
987 filter, attr_list, 0, &result);
988
989 if (rc != LDAP_SUCCESS) {
990 DEBUG(3,("Failure looking up ids (%s)\n", ldap_err2string(rc)));
991 ret = NT_STATUS_UNSUCCESSFUL;
992 goto done;
993 }
994
995 count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
996
997 if (count == 0) {
998 DEBUG(10, ("NO SIDs found\n"));
999 }
1000
1001 for (i = 0; i < count; i++) {
1002 LDAPMessage *entry = NULL;
1003 char *sidstr = NULL;
1004 char *tmp = NULL;
1005 enum id_type type;
1006 struct id_map *map;
1007 uint32_t id;
1008
1009 if (i == 0) { /* first entry */
1010 entry = ldap_first_entry(ctx->smbldap_state->ldap_struct,
1011 result);
1012 } else { /* following ones */
1013 entry = ldap_next_entry(ctx->smbldap_state->ldap_struct,
1014 entry);
1015 }
1016 if ( ! entry) {
1017 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
1018 "from results\n"));
1019 break;
1020 }
1021
1022 /* first check if the SID is present */
1023 sidstr = smbldap_talloc_single_attribute(
1024 ctx->smbldap_state->ldap_struct,
1025 entry, LDAP_ATTRIBUTE_SID, memctx);
1026 if ( ! sidstr) { /* no sid, skip entry */
1027 DEBUG(2, ("WARNING SID not found on entry\n"));
1028 continue;
1029 }
1030
1031 /* now try to see if it is a uid, if not try with a gid
1032 * (gid is more common, but in case both uidNumber and
1033 * gidNumber are returned the SID is mapped to the uid
1034 *not the gid) */
1035 type = ID_TYPE_UID;
1036 tmp = smbldap_talloc_single_attribute(
1037 ctx->smbldap_state->ldap_struct,
1038 entry, uidNumber, memctx);
1039 if ( ! tmp) {
1040 type = ID_TYPE_GID;
1041 tmp = smbldap_talloc_single_attribute(
1042 ctx->smbldap_state->ldap_struct,
1043 entry, gidNumber, memctx);
1044 }
1045 if ( ! tmp) { /* wow very strange entry, how did it match ? */
1046 DEBUG(5, ("Unprobable match on (%s), no uidNumber, "
1047 "nor gidNumber returned\n", sidstr));
1048 TALLOC_FREE(sidstr);
1049 continue;
1050 }
1051
1052 id = strtoul(tmp, NULL, 10);
1053 if ((id == 0) ||
1054 (ctx->filter_low_id && (id < ctx->filter_low_id)) ||
1055 (ctx->filter_high_id && (id > ctx->filter_high_id))) {
1056 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
1057 "Filtered!\n", id,
1058 ctx->filter_low_id, ctx->filter_high_id));
1059 TALLOC_FREE(sidstr);
1060 TALLOC_FREE(tmp);
1061 continue;
1062 }
1063 TALLOC_FREE(tmp);
1064
1065 map = find_map_by_id(&ids[bidx], type, id);
1066 if (!map) {
1067 DEBUG(2, ("WARNING: couldn't match sid (%s) "
1068 "with requested ids\n", sidstr));
1069 TALLOC_FREE(sidstr);
1070 continue;
1071 }
1072
1073 if ( ! string_to_sid(map->sid, sidstr)) {
1074 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
1075 TALLOC_FREE(sidstr);
1076 continue;
1077 }
1078 TALLOC_FREE(sidstr);
1079
1080 /* mapped */
1081 map->status = ID_MAPPED;
1082
1083 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map->sid),
1084 (unsigned long)map->xid.id, map->xid.type));
1085 }
1086
1087 /* free the ldap results */
1088 if (result) {
1089 ldap_msgfree(result);
1090 result = NULL;
1091 }
1092
1093 if (multi && ids[idx]) { /* still some values to map */
1094 goto again;
1095 }
1096
1097 ret = NT_STATUS_OK;
1098
1099 /* mark all unknwon/expired ones as unmapped */
1100 for (i = 0; ids[i]; i++) {
1101 if (ids[i]->status != ID_MAPPED)
1102 ids[i]->status = ID_UNMAPPED;
1103 }
1104
1105 done:
1106 talloc_free(memctx);
1107 return ret;
1108 }
1109
1110 /**********************************
1111 lookup a set of sids.
1112 **********************************/
1113
1114 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
1115 * in maps for a match */
1116 static struct id_map *find_map_by_sid(struct id_map **maps, DOM_SID *sid)
1117 {
1118 int i;
1119
1120 for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
1121 if (maps[i] == NULL) { /* end of the run */
1122 return NULL;
1123 }
1124 if (sid_equal(maps[i]->sid, sid)) {
1125 return maps[i];
1126 }
1127 }
1128
1129 return NULL;
1130 }
1131
1132 static NTSTATUS idmap_ldap_sids_to_unixids(struct idmap_domain *dom,
1133 struct id_map **ids)
1134 {
1135 LDAPMessage *entry = NULL;
1136 NTSTATUS ret;
1137 TALLOC_CTX *memctx;
1138 struct idmap_ldap_context *ctx;
1139 LDAPMessage *result = NULL;
1140 const char *uidNumber;
1141 const char *gidNumber;
1142 const char **attr_list;
1143 char *filter = NULL;
1144 bool multi = False;
1145 int idx = 0;
1146 int bidx = 0;
1147 int count;
1148 int rc;
1149 int i;
1150
1151 /* Only do query if we are online */
1152 if (idmap_is_offline()) {
1153 return NT_STATUS_FILE_IS_OFFLINE;
1154 }
1155
1156 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
1157
1158 memctx = talloc_new(ctx);
1159 if ( ! memctx) {
1160 DEBUG(0, ("Out of memory!\n"));
1161 return NT_STATUS_NO_MEMORY;
1162 }
1163
1164 uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
1165 gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
1166
1167 attr_list = get_attr_list(memctx, sidmap_attr_list);
1168
1169 if ( ! ids[1]) {
1170 /* if we are requested just one mapping use the simple filter */
1171
1172 filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%s))",
1173 LDAP_OBJ_IDMAP_ENTRY,
1174 LDAP_ATTRIBUTE_SID,
1175 sid_string_talloc(memctx, ids[0]->sid));
1176 CHECK_ALLOC_DONE(filter);
1177 DEBUG(10, ("Filter: [%s]\n", filter));
1178 } else {
1179 /* multiple mappings */
1180 multi = True;
1181 }
1182
1183 again:
1184 if (multi) {
1185
1186 TALLOC_FREE(filter);
1187 filter = talloc_asprintf(memctx,
1188 "(&(objectClass=%s)(|",
1189 LDAP_OBJ_IDMAP_ENTRY);
1190 CHECK_ALLOC_DONE(filter);
1191
1192 bidx = idx;
1193 for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
1194 filter = talloc_asprintf_append_buffer(filter, "(%s=%s)",
1195 LDAP_ATTRIBUTE_SID,
1196 sid_string_talloc(memctx,
1197 ids[idx]->sid));
1198 CHECK_ALLOC_DONE(filter);
1199 }
1200 filter = talloc_asprintf_append_buffer(filter, "))");
1201 CHECK_ALLOC_DONE(filter);
1202 DEBUG(10, ("Filter: [%s]", filter));
1203 } else {
1204 bidx = 0;
1205 idx = 1;
1206 }
1207
1208 rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
1209 filter, attr_list, 0, &result);
1210
1211 if (rc != LDAP_SUCCESS) {
1212 DEBUG(3,("Failure looking up sids (%s)\n",
1213 ldap_err2string(rc)));
1214 ret = NT_STATUS_UNSUCCESSFUL;
1215 goto done;
1216 }
1217
1218 count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
1219
1220 if (count == 0) {
1221 DEBUG(10, ("NO SIDs found\n"));
1222 }
1223
1224 for (i = 0; i < count; i++) {
1225 char *sidstr = NULL;
1226 char *tmp = NULL;
1227 enum id_type type;
1228 struct id_map *map;
1229 DOM_SID sid;
1230 uint32_t id;
1231
1232 if (i == 0) { /* first entry */
1233 entry = ldap_first_entry(ctx->smbldap_state->ldap_struct,
1234 result);
1235 } else { /* following ones */
1236 entry = ldap_next_entry(ctx->smbldap_state->ldap_struct,
1237 entry);
1238 }
1239 if ( ! entry) {
1240 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
1241 "from results\n"));
1242 break;
1243 }
1244
1245 /* first check if the SID is present */
1246 sidstr = smbldap_talloc_single_attribute(
1247 ctx->smbldap_state->ldap_struct,
1248 entry, LDAP_ATTRIBUTE_SID, memctx);
1249 if ( ! sidstr) { /* no sid ??, skip entry */
1250 DEBUG(2, ("WARNING SID not found on entry\n"));
1251 continue;
1252 }
1253
1254 if ( ! string_to_sid(&sid, sidstr)) {
1255 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
1256 TALLOC_FREE(sidstr);
1257 continue;
1258 }
1259
1260 map = find_map_by_sid(&ids[bidx], &sid);
1261 if (!map) {
1262 DEBUG(2, ("WARNING: couldn't find entry sid (%s) "
1263 "in ids", sidstr));
1264 TALLOC_FREE(sidstr);
1265 continue;
1266 }
1267
1268 TALLOC_FREE(sidstr);
1269
1270 /* now try to see if it is a uid, if not try with a gid
1271 * (gid is more common, but in case both uidNumber and
1272 * gidNumber are returned the SID is mapped to the uid
1273 * not the gid) */
1274 type = ID_TYPE_UID;
1275 tmp = smbldap_talloc_single_attribute(
1276 ctx->smbldap_state->ldap_struct,
1277 entry, uidNumber, memctx);
1278 if ( ! tmp) {
1279 type = ID_TYPE_GID;
1280 tmp = smbldap_talloc_single_attribute(
1281 ctx->smbldap_state->ldap_struct,
1282 entry, gidNumber, memctx);
1283 }
1284 if ( ! tmp) { /* no ids ?? */
1285 DEBUG(5, ("no uidNumber, "
1286 "nor gidNumber attributes found\n"));
1287 continue;
1288 }
1289
1290 id = strtoul(tmp, NULL, 10);
1291 if ((id == 0) ||
1292 (ctx->filter_low_id && (id < ctx->filter_low_id)) ||
1293 (ctx->filter_high_id && (id > ctx->filter_high_id))) {
1294 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
1295 "Filtered!\n", id,
1296 ctx->filter_low_id, ctx->filter_high_id));
1297 TALLOC_FREE(tmp);
1298 continue;
1299 }
1300 TALLOC_FREE(tmp);
1301
1302 /* mapped */
1303 map->xid.type = type;
1304 map->xid.id = id;
1305 map->status = ID_MAPPED;
1306
1307 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map->sid),
1308 (unsigned long)map->xid.id, map->xid.type));
1309 }
1310
1311 /* free the ldap results */
1312 if (result) {
1313 ldap_msgfree(result);
1314 result = NULL;
1315 }
1316
1317 if (multi && ids[idx]) { /* still some values to map */
1318 goto again;
1319 }
1320
1321 ret = NT_STATUS_OK;
1322
1323 /* mark all unknwon/expired ones as unmapped */
1324 for (i = 0; ids[i]; i++) {
1325 if (ids[i]->status != ID_MAPPED)
1326 ids[i]->status = ID_UNMAPPED;
1327 }
1328
1329 done:
1330 talloc_free(memctx);
1331 return ret;
1332 }
1333
1334 /**********************************
1335 set a mapping.
1336 **********************************/
1337
1338 /* TODO: change this: This function cannot be called to modify a mapping,
1339 * only set a new one */
1340
1341 static NTSTATUS idmap_ldap_set_mapping(struct idmap_domain *dom,
1342 const struct id_map *map)
1343 {
1344 NTSTATUS ret;
1345 TALLOC_CTX *memctx;
1346 struct idmap_ldap_context *ctx;
1347 LDAPMessage *entry = NULL;
1348 LDAPMod **mods = NULL;
1349 const char *type;
1350 char *id_str;
1351 char *sid;
1352 char *dn;
1353 int rc = -1;
1354
1355 /* Only do query if we are online */
1356 if (idmap_is_offline()) {
1357 return NT_STATUS_FILE_IS_OFFLINE;
1358 }
1359
1360 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
1361
1362 switch(map->xid.type) {
1363 case ID_TYPE_UID:
1364 type = get_attr_key2string(sidmap_attr_list,
1365 LDAP_ATTR_UIDNUMBER);
1366 break;
1367
1368 case ID_TYPE_GID:
1369 type = get_attr_key2string(sidmap_attr_list,
1370 LDAP_ATTR_GIDNUMBER);
1371 break;
1372
1373 default:
1374 return NT_STATUS_INVALID_PARAMETER;
1375 }
1376
1377 memctx = talloc_new(ctx);
1378 if ( ! memctx) {
1379 DEBUG(0, ("Out of memory!\n"));
1380 return NT_STATUS_NO_MEMORY;
1381 }
1382
1383 id_str = talloc_asprintf(memctx, "%lu", (unsigned long)map->xid.id);
1384 CHECK_ALLOC_DONE(id_str);
1385
1386 sid = talloc_strdup(memctx, sid_string_talloc(memctx, map->sid));
1387 CHECK_ALLOC_DONE(sid);
1388
1389 dn = talloc_asprintf(memctx, "%s=%s,%s",
1390 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
1391 sid,
1392 ctx->suffix);
1393 CHECK_ALLOC_DONE(dn);
1394
1395 smbldap_set_mod(&mods, LDAP_MOD_ADD,
1396 "objectClass", LDAP_OBJ_IDMAP_ENTRY);
1397
1398 smbldap_make_mod(ctx->smbldap_state->ldap_struct,
1399 entry, &mods, type, id_str);
1400
1401 smbldap_make_mod(ctx->smbldap_state->ldap_struct, entry, &mods,
1402 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
1403 sid);
1404
1405 if ( ! mods) {
1406 DEBUG(2, ("ERROR: No mods?\n"));
1407 ret = NT_STATUS_UNSUCCESSFUL;
1408 goto done;
1409 }
1410
1411 /* TODO: remove conflicting mappings! */
1412
1413 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SID_ENTRY);
1414
1415 DEBUG(10, ("Set DN %s (%s -> %s)\n", dn, sid, id_str));
1416
1417 rc = smbldap_add(ctx->smbldap_state, dn, mods);
1418 ldap_mods_free(mods, True);
1419
1420 if (rc != LDAP_SUCCESS) {
1421 char *ld_error = NULL;
1422 ldap_get_option(ctx->smbldap_state->ldap_struct,
1423 LDAP_OPT_ERROR_STRING, &ld_error);
1424 DEBUG(0,("ldap_set_mapping_internals: Failed to add %s to %lu "
1425 "mapping [%s]\n", sid,
1426 (unsigned long)map->xid.id, type));
1427 DEBUG(0, ("ldap_set_mapping_internals: Error was: %s (%s)\n",
1428 ld_error ? ld_error : "(NULL)", ldap_err2string (rc)));
1429 if (ld_error) {
1430 ldap_memfree(ld_error);
1431 }
1432 ret = NT_STATUS_UNSUCCESSFUL;
1433 goto done;
1434 }
1435
1436 DEBUG(10,("ldap_set_mapping: Successfully created mapping from %s to "
1437 "%lu [%s]\n", sid, (unsigned long)map->xid.id, type));
1438
1439 ret = NT_STATUS_OK;
1440
1441 done:
1442 talloc_free(memctx);
1443 return ret;
1444 }
1445
1446 /**********************************
1447 Close the idmap ldap instance
1448 **********************************/
1449
1450 static NTSTATUS idmap_ldap_close(struct idmap_domain *dom)
1451 {
1452 struct idmap_ldap_context *ctx;
1453
1454 if (dom->private_data) {
1455 ctx = talloc_get_type(dom->private_data,
1456 struct idmap_ldap_context);
1457
1458 talloc_free(ctx);
1459 dom->private_data = NULL;
1460 }
1461
1462 return NT_STATUS_OK;
1463 }
1464
1465 static struct idmap_methods idmap_ldap_methods = {
1466
1467 .init = idmap_ldap_db_init,
1468 .unixids_to_sids = idmap_ldap_unixids_to_sids,
1469 .sids_to_unixids = idmap_ldap_sids_to_unixids,
1470 .set_mapping = idmap_ldap_set_mapping,
1471 .close_fn = idmap_ldap_close
1472 };
1473
1474 static struct idmap_alloc_methods idmap_ldap_alloc_methods = {
1475
1476 .init = idmap_ldap_alloc_init,
1477 .allocate_id = idmap_ldap_allocate_id,
1478 .get_id_hwm = idmap_ldap_get_hwm,
1479 .set_id_hwm = idmap_ldap_set_hwm,
1480 .close_fn = idmap_ldap_alloc_close,
1481 /* .dump_data = TODO */
1482 };
1483
1484 NTSTATUS idmap_alloc_ldap_init(void)
1485 {
1486 return smb_register_idmap_alloc(SMB_IDMAP_INTERFACE_VERSION, "ldap",
1487 &idmap_ldap_alloc_methods);
1488 }
1489
1490 NTSTATUS idmap_ldap_init(void)
1491 {
1492 NTSTATUS ret;
1493
1494 /* FIXME: bad hack to actually register also the alloc_ldap module
1495 * without changining configure.in */
1496 ret = idmap_alloc_ldap_init();
1497 if (! NT_STATUS_IS_OK(ret)) {
1498 return ret;
1499 }
1500 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "ldap",
1501 &idmap_ldap_methods);
1502 }
1503
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