Line data Source code
1 : /*
2 : Unix SMB/CIFS implementation.
3 : DSDB schema header
4 :
5 : Copyright (C) Stefan Metzmacher <metze@samba.org> 2006-2007
6 : Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006-2008
7 : Copyright (C) Matthieu Patou <mat@matws.net> 2011
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 :
24 : #include "includes.h"
25 : #include "lib/util/dlinklist.h"
26 : #include "dsdb/samdb/samdb.h"
27 : #include <ldb_module.h>
28 : #include "param/param.h"
29 : #include "librpc/ndr/libndr.h"
30 : #include "librpc/gen_ndr/ndr_misc.h"
31 : #include "lib/util/tsort.h"
32 :
33 : #undef strcasecmp
34 :
35 : /* change this when we change something in our schema code that
36 : * requires a re-index of the database
37 : */
38 : #define SAMDB_INDEXING_VERSION "3"
39 :
40 : /*
41 : override the name to attribute handler function
42 : */
43 648878026 : const struct ldb_schema_attribute *dsdb_attribute_handler_override(struct ldb_context *ldb,
44 : void *private_data,
45 : const char *name)
46 : {
47 648878026 : struct dsdb_schema *schema = talloc_get_type_abort(private_data, struct dsdb_schema);
48 648878026 : const struct dsdb_attribute *a = dsdb_attribute_by_lDAPDisplayName(schema, name);
49 648878026 : if (a == NULL) {
50 : /* this will fall back to ldb internal handling */
51 2229590 : return NULL;
52 : }
53 646648436 : return a->ldb_schema_attribute;
54 : }
55 :
56 : /*
57 : * Set the attribute handlers onto the LDB, and potentially write the
58 : * @INDEXLIST, @IDXONE and @ATTRIBUTES records. The @ATTRIBUTES records
59 : * are required so we can operate on a schema-less database (say the
60 : * backend during emergency fixes) and during the schema load.
61 : */
62 147495 : int dsdb_schema_set_indices_and_attributes(struct ldb_context *ldb,
63 : struct dsdb_schema *schema,
64 : enum schema_set_enum mode)
65 : {
66 147495 : int ret = LDB_SUCCESS;
67 : struct ldb_result *res;
68 : struct ldb_result *res_idx;
69 : struct dsdb_attribute *attr;
70 : struct ldb_message *mod_msg;
71 : TALLOC_CTX *mem_ctx;
72 : struct ldb_message *msg;
73 : struct ldb_message *msg_idx;
74 :
75 110206 : struct loadparm_context *lp_ctx =
76 147495 : talloc_get_type(ldb_get_opaque(ldb, "loadparm"),
77 : struct loadparm_context);
78 147495 : bool guid_indexing = true;
79 147495 : bool declare_ordered_integer_in_attributes = true;
80 : uint32_t pack_format_override;
81 147495 : if (lp_ctx != NULL) {
82 : /*
83 : * GUID indexing is wanted by Samba by default. This allows
84 : * an override in a specific case for downgrades.
85 : */
86 147179 : guid_indexing = lpcfg_parm_bool(lp_ctx,
87 : NULL,
88 : "dsdb",
89 : "guid index",
90 : true);
91 : /*
92 : * If the pack format has been overridden to a previous
93 : * version, then act like ORDERED_INTEGER doesn't exist,
94 : * because it's a new type and we don't want to deal with
95 : * possible issues with databases containing version 1 pack
96 : * format and ordered types.
97 : *
98 : * This approach means that the @ATTRIBUTES will be
99 : * incorrect for integers. Many other @ATTRIBUTES
100 : * values are gross simplifications, but the presence
101 : * of the ORDERED_INTEGER keyword prevents the old
102 : * Samba from starting and then forcing a reindex.
103 : *
104 : * It is too difficult to override the actual index
105 : * formatter, but this doesn't matter in practice.
106 : */
107 147179 : pack_format_override =
108 147179 : (intptr_t)ldb_get_opaque(ldb, "pack_format_override");
109 147179 : if (pack_format_override == LDB_PACKING_FORMAT ||
110 : pack_format_override == LDB_PACKING_FORMAT_NODN) {
111 0 : declare_ordered_integer_in_attributes = false;
112 : }
113 : }
114 : /* setup our own attribute name to schema handler */
115 147495 : ldb_schema_attribute_set_override_handler(ldb, dsdb_attribute_handler_override, schema);
116 147495 : ldb_schema_set_override_indexlist(ldb, true);
117 147495 : if (guid_indexing) {
118 147495 : ldb_schema_set_override_GUID_index(ldb, "objectGUID", "GUID");
119 : }
120 :
121 147495 : if (mode == SCHEMA_MEMORY_ONLY) {
122 142661 : return ret;
123 : }
124 :
125 4834 : mem_ctx = talloc_new(ldb);
126 4834 : if (!mem_ctx) {
127 0 : return ldb_oom(ldb);
128 : }
129 :
130 4834 : msg = ldb_msg_new(mem_ctx);
131 4834 : if (!msg) {
132 0 : ldb_oom(ldb);
133 0 : goto op_error;
134 : }
135 4834 : msg_idx = ldb_msg_new(mem_ctx);
136 4834 : if (!msg_idx) {
137 0 : ldb_oom(ldb);
138 0 : goto op_error;
139 : }
140 4834 : msg->dn = ldb_dn_new(msg, ldb, "@ATTRIBUTES");
141 4834 : if (!msg->dn) {
142 0 : ldb_oom(ldb);
143 0 : goto op_error;
144 : }
145 4834 : msg_idx->dn = ldb_dn_new(msg_idx, ldb, "@INDEXLIST");
146 4834 : if (!msg_idx->dn) {
147 0 : ldb_oom(ldb);
148 0 : goto op_error;
149 : }
150 :
151 4834 : ret = ldb_msg_add_string(msg_idx, "@IDXONE", "1");
152 4834 : if (ret != LDB_SUCCESS) {
153 0 : goto op_error;
154 : }
155 :
156 4834 : if (guid_indexing) {
157 4834 : ret = ldb_msg_add_string(msg_idx, "@IDXGUID", "objectGUID");
158 4834 : if (ret != LDB_SUCCESS) {
159 0 : goto op_error;
160 : }
161 :
162 4834 : ret = ldb_msg_add_string(msg_idx, "@IDX_DN_GUID", "GUID");
163 4834 : if (ret != LDB_SUCCESS) {
164 0 : goto op_error;
165 : }
166 : }
167 :
168 4834 : ret = ldb_msg_add_string(msg_idx, "@SAMDB_INDEXING_VERSION", SAMDB_INDEXING_VERSION);
169 4834 : if (ret != LDB_SUCCESS) {
170 0 : goto op_error;
171 : }
172 :
173 4834 : ret = ldb_msg_add_string(msg_idx, SAMBA_FEATURES_SUPPORTED_FLAG, "1");
174 4834 : if (ret != LDB_SUCCESS) {
175 0 : goto op_error;
176 : }
177 :
178 6966555 : for (attr = schema->attributes; attr; attr = attr->next) {
179 6961721 : const char *syntax = attr->syntax->ldb_syntax;
180 :
181 6961721 : if (!syntax) {
182 3894824 : syntax = attr->syntax->ldap_oid;
183 : }
184 :
185 : /*
186 : * Write out a rough approximation of the schema
187 : * as an @ATTRIBUTES value, for bootstrapping.
188 : * Only write ORDERED_INTEGER if we're using GUID indexes,
189 : */
190 6961721 : if (strcmp(syntax, LDB_SYNTAX_INTEGER) == 0) {
191 0 : ret = ldb_msg_add_string(msg, attr->lDAPDisplayName, "INTEGER");
192 6961721 : } else if (strcmp(syntax, LDB_SYNTAX_ORDERED_INTEGER) == 0) {
193 453228 : if (declare_ordered_integer_in_attributes &&
194 : guid_indexing) {
195 : /*
196 : * The normal production case
197 : */
198 453228 : ret = ldb_msg_add_string(msg,
199 : attr->lDAPDisplayName,
200 : "ORDERED_INTEGER");
201 : } else {
202 : /*
203 : * For this mode, we are going back to
204 : * before GUID indexing so we write it out
205 : * as INTEGER
206 : *
207 : * Down in LDB, the special handler
208 : * (index_format_fn) that made
209 : * ORDERED_INTEGER and INTEGER
210 : * different has been disabled.
211 : */
212 0 : ret = ldb_msg_add_string(msg,
213 : attr->lDAPDisplayName,
214 : "INTEGER");
215 : }
216 6508493 : } else if (strcmp(syntax, LDB_SYNTAX_DIRECTORY_STRING) == 0) {
217 2556167 : ret = ldb_msg_add_string(msg, attr->lDAPDisplayName,
218 : "CASE_INSENSITIVE");
219 : }
220 6961721 : if (ret != LDB_SUCCESS) {
221 0 : break;
222 : }
223 :
224 : /*
225 : * Is the attribute indexed? By treating confidential attributes
226 : * as unindexed, we force searches to go through the unindexed
227 : * search path, avoiding observable timing differences.
228 : */
229 7584612 : if (attr->searchFlags & SEARCH_FLAG_ATTINDEX &&
230 699195 : !(attr->searchFlags & SEARCH_FLAG_CONFIDENTIAL))
231 : {
232 : /*
233 : * When preparing to downgrade Samba, we need to write
234 : * out an LDB without the new key word ORDERED_INTEGER.
235 : */
236 699195 : if (strcmp(syntax, LDB_SYNTAX_ORDERED_INTEGER) == 0
237 39250 : && !declare_ordered_integer_in_attributes) {
238 : /*
239 : * Ugly, but do nothing, the best
240 : * thing is to omit the reference
241 : * entirely, the next transaction will
242 : * spot this and rewrite everything.
243 : *
244 : * This way nothing will look at the
245 : * index for this attribute until
246 : * Samba starts and this is all
247 : * rewritten.
248 : */
249 : } else {
250 699195 : ret = ldb_msg_add_string(msg_idx, "@IDXATTR", attr->lDAPDisplayName);
251 699195 : if (ret != LDB_SUCCESS) {
252 0 : break;
253 : }
254 : }
255 : }
256 : }
257 :
258 4834 : if (ret != LDB_SUCCESS) {
259 0 : talloc_free(mem_ctx);
260 0 : return ret;
261 : }
262 :
263 : /*
264 : * Try to avoid churning the attributes too much,
265 : * we only want to do this if they have changed
266 : */
267 4834 : ret = ldb_search(ldb, mem_ctx, &res, msg->dn, LDB_SCOPE_BASE, NULL,
268 : NULL);
269 4834 : if (ret == LDB_ERR_NO_SUCH_OBJECT) {
270 147 : if (mode == SCHEMA_COMPARE) {
271 : /* We are probably not in a transaction */
272 0 : goto wrong_mode;
273 : }
274 147 : ret = ldb_add(ldb, msg);
275 4687 : } else if (ret != LDB_SUCCESS) {
276 4278 : } else if (res->count != 1) {
277 6 : if (mode == SCHEMA_COMPARE) {
278 : /* We are probably not in a transaction */
279 0 : goto wrong_mode;
280 : }
281 6 : ret = ldb_add(ldb, msg);
282 : } else {
283 : /* Annoyingly added to our search results */
284 4272 : ldb_msg_remove_attr(res->msgs[0], "distinguishedName");
285 :
286 4272 : ret = ldb_msg_difference(ldb, mem_ctx,
287 4272 : res->msgs[0], msg, &mod_msg);
288 4272 : if (ret != LDB_SUCCESS) {
289 0 : goto op_error;
290 : }
291 4272 : if (mod_msg->num_elements > 0) {
292 : /*
293 : * Do the replace with the difference, as we
294 : * are under the read lock and we wish to do a
295 : * delete of any removed/renamed attributes
296 : */
297 161 : if (mode == SCHEMA_COMPARE) {
298 : /* We are probably not in a transaction */
299 23 : goto wrong_mode;
300 : }
301 138 : ret = dsdb_modify(ldb, mod_msg, 0);
302 : }
303 4249 : talloc_free(mod_msg);
304 : }
305 :
306 4811 : if (ret == LDB_ERR_OPERATIONS_ERROR || ret == LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS || ret == LDB_ERR_INVALID_DN_SYNTAX) {
307 : /* We might be on a read-only DB or LDAP */
308 409 : ret = LDB_SUCCESS;
309 : }
310 4811 : if (ret != LDB_SUCCESS) {
311 0 : DBG_ERR("Failed to set schema into @ATTRIBUTES: %s\n",
312 : ldb_errstring(ldb));
313 0 : talloc_free(mem_ctx);
314 0 : return ret;
315 : }
316 :
317 : /* Now write out the indexes, as found in the schema (if they have changed) */
318 :
319 4811 : ret = ldb_search(ldb, mem_ctx, &res_idx, msg_idx->dn, LDB_SCOPE_BASE,
320 : NULL, NULL);
321 4811 : if (ret == LDB_ERR_NO_SUCH_OBJECT) {
322 147 : if (mode == SCHEMA_COMPARE) {
323 : /* We are probably not in a transaction */
324 0 : goto wrong_mode;
325 : }
326 147 : ret = ldb_add(ldb, msg_idx);
327 4664 : } else if (ret != LDB_SUCCESS) {
328 4255 : } else if (res_idx->count != 1) {
329 6 : if (mode == SCHEMA_COMPARE) {
330 : /* We are probably not in a transaction */
331 0 : goto wrong_mode;
332 : }
333 6 : ret = ldb_add(ldb, msg_idx);
334 : } else {
335 : /* Annoyingly added to our search results */
336 4249 : ldb_msg_remove_attr(res_idx->msgs[0], "distinguishedName");
337 :
338 4249 : ret = ldb_msg_difference(ldb, mem_ctx,
339 4249 : res_idx->msgs[0], msg_idx, &mod_msg);
340 4249 : if (ret != LDB_SUCCESS) {
341 0 : goto op_error;
342 : }
343 :
344 : /*
345 : * We don't want to re-index just because we didn't
346 : * see this flag
347 : *
348 : * DO NOT backport this logic earlier than 4.7, it
349 : * isn't needed and would be dangerous before 4.6,
350 : * where we add logic to samba_dsdb to manage
351 : * @SAMBA_FEATURES_SUPPORTED and need to know if the
352 : * DB has been re-opened by an earlier version.
353 : *
354 : */
355 :
356 4249 : if (mod_msg->num_elements == 1
357 65 : && ldb_attr_cmp(mod_msg->elements[0].name,
358 : SAMBA_FEATURES_SUPPORTED_FLAG) == 0) {
359 : /*
360 : * Ignore only adding
361 : * @SAMBA_FEATURES_SUPPORTED
362 : */
363 4249 : } else if (mod_msg->num_elements > 0) {
364 :
365 : /*
366 : * Do the replace with the difference, as we
367 : * are under the read lock and we wish to do a
368 : * delete of any removed/renamed attributes
369 : */
370 76 : if (mode == SCHEMA_COMPARE) {
371 : /* We are probably not in a transaction */
372 2 : goto wrong_mode;
373 : }
374 74 : ret = dsdb_modify(ldb, mod_msg, 0);
375 : }
376 4247 : talloc_free(mod_msg);
377 : }
378 4809 : if (ret == LDB_ERR_OPERATIONS_ERROR || ret == LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS || ret == LDB_ERR_INVALID_DN_SYNTAX) {
379 : /* We might be on a read-only DB */
380 409 : ret = LDB_SUCCESS;
381 : }
382 :
383 4809 : if (ret != LDB_SUCCESS) {
384 0 : DBG_ERR("Failed to set schema into @INDEXLIST: %s\n",
385 : ldb_errstring(ldb));
386 : }
387 :
388 4809 : talloc_free(mem_ctx);
389 4809 : return ret;
390 :
391 0 : op_error:
392 0 : talloc_free(mem_ctx);
393 0 : return ldb_operr(ldb);
394 :
395 25 : wrong_mode:
396 25 : talloc_free(mem_ctx);
397 25 : return LDB_ERR_BUSY;
398 : }
399 :
400 :
401 : /*
402 : create extra attribute shortcuts
403 : */
404 19927 : static void dsdb_setup_attribute_shortcuts(struct ldb_context *ldb, struct dsdb_schema *schema)
405 : {
406 : struct dsdb_attribute *attribute;
407 :
408 : /* setup fast access to one_way_link and DN format */
409 27913282 : for (attribute=schema->attributes; attribute; attribute=attribute->next) {
410 27893355 : attribute->dn_format = dsdb_dn_oid_to_format(attribute->syntax->ldap_oid);
411 :
412 27893355 : if (attribute->dn_format == DSDB_INVALID_DN) {
413 24126256 : attribute->one_way_link = false;
414 24126256 : continue;
415 : }
416 :
417 : /* these are not considered to be one way links for
418 : the purpose of DN link fixups */
419 6590568 : if (ldb_attr_cmp("distinguishedName", attribute->lDAPDisplayName) == 0 ||
420 3747172 : ldb_attr_cmp("objectCategory", attribute->lDAPDisplayName) == 0) {
421 39854 : attribute->one_way_link = false;
422 39854 : continue;
423 : }
424 :
425 3727245 : if (attribute->linkID == 0) {
426 1479929 : attribute->one_way_link = true;
427 1479929 : continue;
428 : }
429 : /* handle attributes with a linkID but no backlink */
430 3548234 : if ((attribute->linkID & 1) == 0 &&
431 1300918 : dsdb_attribute_by_linkID(schema, attribute->linkID + 1) == NULL) {
432 354520 : attribute->one_way_link = true;
433 354520 : continue;
434 : }
435 1892796 : attribute->one_way_link = false;
436 : }
437 19927 : }
438 :
439 526431427 : static int uint32_cmp(uint32_t c1, uint32_t c2)
440 : {
441 526431427 : if (c1 == c2) return 0;
442 398173805 : return c1 > c2 ? 1 : -1;
443 : }
444 :
445 35141408 : static int dsdb_compare_class_by_lDAPDisplayName(struct dsdb_class **c1, struct dsdb_class **c2)
446 : {
447 35141408 : return strcasecmp((*c1)->lDAPDisplayName, (*c2)->lDAPDisplayName);
448 : }
449 35202217 : static int dsdb_compare_class_by_governsID_id(struct dsdb_class **c1, struct dsdb_class **c2)
450 : {
451 35202217 : return uint32_cmp((*c1)->governsID_id, (*c2)->governsID_id);
452 : }
453 35228682 : static int dsdb_compare_class_by_governsID_oid(struct dsdb_class **c1, struct dsdb_class **c2)
454 : {
455 35228682 : return strcasecmp((*c1)->governsID_oid, (*c2)->governsID_oid);
456 : }
457 35160134 : static int dsdb_compare_class_by_cn(struct dsdb_class **c1, struct dsdb_class **c2)
458 : {
459 35160134 : return strcasecmp((*c1)->cn, (*c2)->cn);
460 : }
461 :
462 255539007 : static int dsdb_compare_attribute_by_lDAPDisplayName(struct dsdb_attribute **a1, struct dsdb_attribute **a2)
463 : {
464 255539007 : return strcasecmp((*a1)->lDAPDisplayName, (*a2)->lDAPDisplayName);
465 : }
466 256738606 : static int dsdb_compare_attribute_by_attributeID_id(struct dsdb_attribute **a1, struct dsdb_attribute **a2)
467 : {
468 256738606 : return uint32_cmp((*a1)->attributeID_id, (*a2)->attributeID_id);
469 : }
470 606425 : static int dsdb_compare_attribute_by_msDS_IntId(struct dsdb_attribute **a1, struct dsdb_attribute **a2)
471 : {
472 606425 : return uint32_cmp((*a1)->msDS_IntId, (*a2)->msDS_IntId);
473 : }
474 256661341 : static int dsdb_compare_attribute_by_attributeID_oid(struct dsdb_attribute **a1, struct dsdb_attribute **a2)
475 : {
476 256661341 : return strcasecmp((*a1)->attributeID_oid, (*a2)->attributeID_oid);
477 : }
478 233884179 : static int dsdb_compare_attribute_by_linkID(struct dsdb_attribute **a1, struct dsdb_attribute **a2)
479 : {
480 233884179 : return uint32_cmp((*a1)->linkID, (*a2)->linkID);
481 : }
482 :
483 : /**
484 : * Clean up Classes and Attributes accessor arrays
485 : */
486 19927 : static void dsdb_sorted_accessors_free(struct dsdb_schema *schema)
487 : {
488 : /* free classes accessors */
489 19927 : TALLOC_FREE(schema->classes_by_lDAPDisplayName);
490 19927 : TALLOC_FREE(schema->classes_by_governsID_id);
491 19927 : TALLOC_FREE(schema->classes_by_governsID_oid);
492 19927 : TALLOC_FREE(schema->classes_by_cn);
493 : /* free attribute accessors */
494 19927 : TALLOC_FREE(schema->attributes_by_lDAPDisplayName);
495 19927 : TALLOC_FREE(schema->attributes_by_attributeID_id);
496 19927 : TALLOC_FREE(schema->attributes_by_msDS_IntId);
497 19927 : TALLOC_FREE(schema->attributes_by_attributeID_oid);
498 19927 : TALLOC_FREE(schema->attributes_by_linkID);
499 19927 : }
500 :
501 : /*
502 : create the sorted accessor arrays for the schema
503 : */
504 19927 : int dsdb_setup_sorted_accessors(struct ldb_context *ldb,
505 : struct dsdb_schema *schema)
506 : {
507 : struct dsdb_class *cur;
508 : struct dsdb_attribute *a;
509 : unsigned int i;
510 : unsigned int num_int_id;
511 : int ret;
512 :
513 19927 : for (i=0; i < schema->classes_to_remove_size; i++) {
514 0 : DLIST_REMOVE(schema->classes, schema->classes_to_remove[i]);
515 0 : TALLOC_FREE(schema->classes_to_remove[i]);
516 : }
517 19927 : for (i=0; i < schema->attributes_to_remove_size; i++) {
518 0 : DLIST_REMOVE(schema->attributes, schema->attributes_to_remove[i]);
519 0 : TALLOC_FREE(schema->attributes_to_remove[i]);
520 : }
521 :
522 19927 : TALLOC_FREE(schema->classes_to_remove);
523 19927 : schema->classes_to_remove_size = 0;
524 19927 : TALLOC_FREE(schema->attributes_to_remove);
525 19927 : schema->attributes_to_remove_size = 0;
526 :
527 : /* free all caches */
528 19927 : dsdb_sorted_accessors_free(schema);
529 :
530 : /* count the classes */
531 1356781 : for (i=0, cur=schema->classes; cur; i++, cur=cur->next) /* noop */ ;
532 19927 : schema->num_classes = i;
533 :
534 : /* setup classes_by_* */
535 19927 : schema->classes_by_lDAPDisplayName = talloc_array(schema, struct dsdb_class *, i);
536 19927 : schema->classes_by_governsID_id = talloc_array(schema, struct dsdb_class *, i);
537 19927 : schema->classes_by_governsID_oid = talloc_array(schema, struct dsdb_class *, i);
538 19927 : schema->classes_by_cn = talloc_array(schema, struct dsdb_class *, i);
539 34601 : if (schema->classes_by_lDAPDisplayName == NULL ||
540 34601 : schema->classes_by_governsID_id == NULL ||
541 34601 : schema->classes_by_governsID_oid == NULL ||
542 19927 : schema->classes_by_cn == NULL) {
543 0 : goto failed;
544 : }
545 :
546 5223345 : for (i=0, cur=schema->classes; cur; i++, cur=cur->next) {
547 5203418 : schema->classes_by_lDAPDisplayName[i] = cur;
548 5203418 : schema->classes_by_governsID_id[i] = cur;
549 5203418 : schema->classes_by_governsID_oid[i] = cur;
550 5203418 : schema->classes_by_cn[i] = cur;
551 : }
552 :
553 : /* sort the arrays */
554 19927 : TYPESAFE_QSORT(schema->classes_by_lDAPDisplayName, schema->num_classes, dsdb_compare_class_by_lDAPDisplayName);
555 19927 : TYPESAFE_QSORT(schema->classes_by_governsID_id, schema->num_classes, dsdb_compare_class_by_governsID_id);
556 19927 : TYPESAFE_QSORT(schema->classes_by_governsID_oid, schema->num_classes, dsdb_compare_class_by_governsID_oid);
557 19927 : TYPESAFE_QSORT(schema->classes_by_cn, schema->num_classes, dsdb_compare_class_by_cn);
558 :
559 : /* now build the attribute accessor arrays */
560 :
561 : /* count the attributes
562 : * and attributes with msDS-IntId set */
563 19927 : num_int_id = 0;
564 27913282 : for (i=0, a=schema->attributes; a; i++, a=a->next) {
565 27893355 : if (a->msDS_IntId != 0) {
566 186701 : num_int_id++;
567 : }
568 : }
569 19927 : schema->num_attributes = i;
570 19927 : schema->num_int_id_attr = num_int_id;
571 :
572 : /* setup attributes_by_* */
573 19927 : schema->attributes_by_lDAPDisplayName = talloc_array(schema, struct dsdb_attribute *, i);
574 19927 : schema->attributes_by_attributeID_id = talloc_array(schema, struct dsdb_attribute *, i);
575 19927 : schema->attributes_by_msDS_IntId = talloc_array(schema,
576 : struct dsdb_attribute *, num_int_id);
577 19927 : schema->attributes_by_attributeID_oid = talloc_array(schema, struct dsdb_attribute *, i);
578 19927 : schema->attributes_by_linkID = talloc_array(schema, struct dsdb_attribute *, i);
579 34601 : if (schema->attributes_by_lDAPDisplayName == NULL ||
580 34601 : schema->attributes_by_attributeID_id == NULL ||
581 34601 : schema->attributes_by_msDS_IntId == NULL ||
582 34601 : schema->attributes_by_attributeID_oid == NULL ||
583 19927 : schema->attributes_by_linkID == NULL) {
584 0 : goto failed;
585 : }
586 :
587 19927 : num_int_id = 0;
588 27913282 : for (i=0, a=schema->attributes; a; i++, a=a->next) {
589 27893355 : schema->attributes_by_lDAPDisplayName[i] = a;
590 27893355 : schema->attributes_by_attributeID_id[i] = a;
591 27893355 : schema->attributes_by_attributeID_oid[i] = a;
592 27893355 : schema->attributes_by_linkID[i] = a;
593 : /* append attr-by-msDS-IntId values */
594 27893355 : if (a->msDS_IntId != 0) {
595 186701 : schema->attributes_by_msDS_IntId[num_int_id] = a;
596 186701 : num_int_id++;
597 : }
598 : }
599 19927 : SMB_ASSERT(num_int_id == schema->num_int_id_attr);
600 :
601 : /* sort the arrays */
602 19927 : TYPESAFE_QSORT(schema->attributes_by_lDAPDisplayName, schema->num_attributes, dsdb_compare_attribute_by_lDAPDisplayName);
603 19927 : TYPESAFE_QSORT(schema->attributes_by_attributeID_id, schema->num_attributes, dsdb_compare_attribute_by_attributeID_id);
604 19927 : TYPESAFE_QSORT(schema->attributes_by_msDS_IntId, schema->num_int_id_attr, dsdb_compare_attribute_by_msDS_IntId);
605 19927 : TYPESAFE_QSORT(schema->attributes_by_attributeID_oid, schema->num_attributes, dsdb_compare_attribute_by_attributeID_oid);
606 19927 : TYPESAFE_QSORT(schema->attributes_by_linkID, schema->num_attributes, dsdb_compare_attribute_by_linkID);
607 :
608 19927 : dsdb_setup_attribute_shortcuts(ldb, schema);
609 :
610 19927 : ret = schema_fill_constructed(schema);
611 19927 : if (ret != LDB_SUCCESS) {
612 0 : dsdb_sorted_accessors_free(schema);
613 0 : return ret;
614 : }
615 :
616 19927 : return LDB_SUCCESS;
617 :
618 0 : failed:
619 0 : dsdb_sorted_accessors_free(schema);
620 0 : return ldb_oom(ldb);
621 : }
622 :
623 : /**
624 : * Attach the schema to an opaque pointer on the ldb,
625 : * so ldb modules can find it
626 : */
627 107866 : int dsdb_set_schema_refresh_function(struct ldb_context *ldb,
628 : dsdb_schema_refresh_fn refresh_fn,
629 : struct ldb_module *module)
630 : {
631 107866 : int ret = ldb_set_opaque(ldb, "dsdb_schema_refresh_fn", refresh_fn);
632 107866 : if (ret != LDB_SUCCESS) {
633 0 : return ret;
634 : }
635 :
636 107866 : ret = ldb_set_opaque(ldb, "dsdb_schema_refresh_fn_private_data", module);
637 107866 : if (ret != LDB_SUCCESS) {
638 0 : return ret;
639 : }
640 107866 : return LDB_SUCCESS;
641 : }
642 :
643 : /**
644 : * Attach the schema to an opaque pointer on the ldb,
645 : * so ldb modules can find it
646 : */
647 19626 : int dsdb_set_schema(struct ldb_context *ldb,
648 : struct dsdb_schema *schema,
649 : enum schema_set_enum write_indices_and_attributes)
650 : {
651 : struct dsdb_schema *old_schema;
652 : int ret;
653 :
654 19626 : ret = dsdb_setup_sorted_accessors(ldb, schema);
655 19626 : if (ret != LDB_SUCCESS) {
656 0 : return ret;
657 : }
658 :
659 19626 : old_schema = ldb_get_opaque(ldb, "dsdb_schema");
660 :
661 19626 : ret = ldb_set_opaque(ldb, "dsdb_use_global_schema", NULL);
662 19626 : if (ret != LDB_SUCCESS) {
663 0 : return ret;
664 : }
665 :
666 19626 : ret = ldb_set_opaque(ldb, "dsdb_schema", schema);
667 19626 : if (ret != LDB_SUCCESS) {
668 0 : return ret;
669 : }
670 :
671 19626 : talloc_steal(ldb, schema);
672 :
673 : /* Set the new attributes based on the new schema */
674 19626 : ret = dsdb_schema_set_indices_and_attributes(ldb, schema,
675 : write_indices_and_attributes);
676 19626 : if (ret != LDB_SUCCESS) {
677 0 : return ret;
678 : }
679 :
680 : /*
681 : * Remove the reference to the schema we just overwrote - if there was
682 : * none, NULL is harmless here.
683 : */
684 19626 : if (old_schema != schema) {
685 19626 : talloc_unlink(ldb, old_schema);
686 : }
687 :
688 19626 : return ret;
689 : }
690 :
691 : /**
692 : * Global variable to hold one copy of the schema, used to avoid memory bloat
693 : */
694 : static struct dsdb_schema *global_schema;
695 :
696 : /**
697 : * Make this ldb use a specified schema, already fully calculated and belonging to another ldb
698 : *
699 : * The write_indices_and_attributes controls writing of the @ records
700 : * because we cannot write to a database that does not yet exist on
701 : * disk.
702 : */
703 522 : int dsdb_reference_schema(struct ldb_context *ldb, struct dsdb_schema *schema,
704 : enum schema_set_enum write_indices_and_attributes)
705 : {
706 : int ret;
707 : void *ptr;
708 522 : void *schema_parent = NULL;
709 : bool is_already_parent;
710 : struct dsdb_schema *old_schema;
711 522 : old_schema = ldb_get_opaque(ldb, "dsdb_schema");
712 522 : ret = ldb_set_opaque(ldb, "dsdb_schema", schema);
713 522 : if (ret != LDB_SUCCESS) {
714 0 : return ret;
715 : }
716 :
717 : /* Remove the reference to the schema we just overwrote - if there was
718 : * none, NULL is harmless here */
719 522 : talloc_unlink(ldb, old_schema);
720 :
721 : /* Reference schema on ldb if it wasn't done already */
722 522 : schema_parent = talloc_parent(schema);
723 522 : is_already_parent = (schema_parent == ldb);
724 522 : if (!is_already_parent) {
725 522 : ptr = talloc_reference(ldb, schema);
726 522 : if (ptr == NULL) {
727 0 : return ldb_oom(ldb);
728 : }
729 : }
730 :
731 : /* Make this ldb use local schema preferably */
732 522 : ret = ldb_set_opaque(ldb, "dsdb_use_global_schema", NULL);
733 522 : if (ret != LDB_SUCCESS) {
734 0 : return ret;
735 : }
736 :
737 522 : ret = ldb_set_opaque(ldb, "dsdb_refresh_fn", NULL);
738 522 : if (ret != LDB_SUCCESS) {
739 0 : return ret;
740 : }
741 :
742 522 : ret = ldb_set_opaque(ldb, "dsdb_refresh_fn_private_data", NULL);
743 522 : if (ret != LDB_SUCCESS) {
744 0 : return ret;
745 : }
746 :
747 522 : ret = dsdb_schema_set_indices_and_attributes(ldb, schema, write_indices_and_attributes);
748 522 : if (ret != LDB_SUCCESS) {
749 0 : return ret;
750 : }
751 :
752 522 : return LDB_SUCCESS;
753 : }
754 :
755 : /**
756 : * Make this ldb use the 'global' schema, setup to avoid having multiple copies in this process
757 : */
758 141507 : int dsdb_set_global_schema(struct ldb_context *ldb)
759 : {
760 : int ret;
761 141507 : void *use_global_schema = (void *)1;
762 : void *ptr;
763 141507 : struct dsdb_schema *old_schema = ldb_get_opaque(ldb, "dsdb_schema");
764 :
765 141507 : ret = ldb_set_opaque(ldb, "dsdb_use_global_schema", use_global_schema);
766 141507 : if (ret != LDB_SUCCESS) {
767 0 : return ret;
768 : }
769 :
770 141507 : if (global_schema == NULL) {
771 18356 : return LDB_SUCCESS;
772 : }
773 :
774 : /* Remove any pointer to a previous schema */
775 123151 : ret = ldb_set_opaque(ldb, "dsdb_schema", NULL);
776 123151 : if (ret != LDB_SUCCESS) {
777 0 : return ret;
778 : }
779 :
780 : /* Remove the reference to the schema we just overwrote - if there was
781 : * none, NULL is harmless here */
782 123151 : talloc_unlink(ldb, old_schema);
783 :
784 : /* Set the new attributes based on the new schema */
785 : /* Don't write indices and attributes, it's expensive */
786 123151 : ret = dsdb_schema_set_indices_and_attributes(ldb, global_schema, SCHEMA_MEMORY_ONLY);
787 123151 : if (ret == LDB_SUCCESS) {
788 123151 : void *schema_parent = talloc_parent(global_schema);
789 123151 : bool is_already_parent =
790 : (schema_parent == ldb);
791 123151 : if (!is_already_parent) {
792 123151 : ptr = talloc_reference(ldb, global_schema);
793 123151 : if (ptr == NULL) {
794 0 : return ldb_oom(ldb);
795 : }
796 123151 : ret = ldb_set_opaque(ldb, "dsdb_schema", global_schema);
797 : }
798 : }
799 :
800 123151 : return ret;
801 : }
802 :
803 120343788 : bool dsdb_uses_global_schema(struct ldb_context *ldb)
804 : {
805 120343788 : return (ldb_get_opaque(ldb, "dsdb_use_global_schema") != NULL);
806 : }
807 :
808 : /**
809 : * Find the schema object for this ldb
810 : *
811 : * If reference_ctx is not NULL, then talloc_reference onto that context
812 : */
813 :
814 120239409 : struct dsdb_schema *dsdb_get_schema(struct ldb_context *ldb, TALLOC_CTX *reference_ctx)
815 : {
816 : const void *p;
817 120239409 : struct dsdb_schema *schema_out = NULL;
818 120239409 : struct dsdb_schema *schema_in = NULL;
819 : dsdb_schema_refresh_fn refresh_fn;
820 : struct ldb_module *loaded_from_module;
821 : bool use_global_schema;
822 120239409 : TALLOC_CTX *tmp_ctx = talloc_new(reference_ctx);
823 120239409 : if (tmp_ctx == NULL) {
824 0 : return NULL;
825 : }
826 :
827 : /* see if we have a cached copy */
828 120239409 : use_global_schema = dsdb_uses_global_schema(ldb);
829 120239409 : if (use_global_schema) {
830 100642648 : schema_in = global_schema;
831 : } else {
832 19596761 : p = ldb_get_opaque(ldb, "dsdb_schema");
833 19596761 : if (p != NULL) {
834 19511082 : schema_in = talloc_get_type_abort(p, struct dsdb_schema);
835 : }
836 : }
837 :
838 120239409 : refresh_fn = ldb_get_opaque(ldb, "dsdb_schema_refresh_fn");
839 120239409 : if (refresh_fn) {
840 101335101 : loaded_from_module = ldb_get_opaque(ldb, "dsdb_schema_refresh_fn_private_data");
841 :
842 101335101 : SMB_ASSERT(loaded_from_module && (ldb_module_get_ctx(loaded_from_module) == ldb));
843 : }
844 :
845 120239409 : if (refresh_fn) {
846 : /* We need to guard against recursive calls here */
847 101335101 : if (ldb_set_opaque(ldb, "dsdb_schema_refresh_fn", NULL) != LDB_SUCCESS) {
848 0 : ldb_debug_set(ldb, LDB_DEBUG_FATAL,
849 : "dsdb_get_schema: clearing dsdb_schema_refresh_fn failed");
850 : } else {
851 101335101 : schema_out = refresh_fn(loaded_from_module,
852 : ldb_get_event_context(ldb),
853 : schema_in,
854 : use_global_schema);
855 : }
856 101335101 : if (ldb_set_opaque(ldb, "dsdb_schema_refresh_fn", refresh_fn) != LDB_SUCCESS) {
857 0 : ldb_debug_set(ldb, LDB_DEBUG_FATAL,
858 : "dsdb_get_schema: re-setting dsdb_schema_refresh_fn failed");
859 : }
860 101335101 : if (!schema_out) {
861 0 : schema_out = schema_in;
862 0 : ldb_debug_set(ldb, LDB_DEBUG_FATAL,
863 : "dsdb_get_schema: refresh_fn() failed");
864 : }
865 : } else {
866 18904308 : schema_out = schema_in;
867 : }
868 :
869 : /* This removes the extra reference above */
870 120239409 : talloc_free(tmp_ctx);
871 :
872 : /*
873 : * If ref ctx exists and doesn't already reference schema, then add
874 : * a reference. Otherwise, just return schema.
875 : *
876 : * We must use talloc_parent(), which is not quite free (there
877 : * is no direct parent pointer in talloc, only one on the
878 : * first child within a linked list), but is much cheaper than
879 : * talloc_is_parent() which walks the whole tree up to the top
880 : * looking for a potential grand-grand(etc)-parent.
881 : */
882 120239409 : if (reference_ctx == NULL) {
883 55742602 : return schema_out;
884 : } else {
885 64496807 : void *schema_parent = talloc_parent(schema_out);
886 64496807 : bool is_already_parent =
887 : schema_parent == reference_ctx;
888 64496807 : if (is_already_parent) {
889 0 : return schema_out;
890 : } else {
891 64496807 : return talloc_reference(reference_ctx,
892 : schema_out);
893 : }
894 : }
895 : }
896 :
897 : /**
898 : * Make the schema found on this ldb the 'global' schema
899 : */
900 :
901 15736 : void dsdb_make_schema_global(struct ldb_context *ldb, struct dsdb_schema *schema)
902 : {
903 15736 : if (!schema) {
904 0 : return;
905 : }
906 :
907 15736 : if (global_schema) {
908 14008 : talloc_unlink(NULL, global_schema);
909 : }
910 :
911 : /* we want the schema to be around permanently */
912 15736 : talloc_reparent(ldb, NULL, schema);
913 15736 : global_schema = schema;
914 :
915 : /* This calls the talloc_reference() of the global schema back onto the ldb */
916 15736 : dsdb_set_global_schema(ldb);
917 : }
918 :
919 : /**
920 : * When loading the schema from LDIF files, we don't get the extended DNs.
921 : *
922 : * We need to set these up, so that from the moment we start the provision,
923 : * the defaultObjectCategory links are set up correctly.
924 : */
925 319 : int dsdb_schema_fill_extended_dn(struct ldb_context *ldb, struct dsdb_schema *schema)
926 : {
927 : struct dsdb_class *cur;
928 : const struct dsdb_class *target_class;
929 155875 : for (cur = schema->classes; cur; cur = cur->next) {
930 : const struct ldb_val *rdn;
931 : struct ldb_val guid;
932 : NTSTATUS status;
933 : int ret;
934 83226 : struct ldb_dn *dn = ldb_dn_new(NULL, ldb, cur->defaultObjectCategory);
935 :
936 83226 : if (!dn) {
937 0 : return LDB_ERR_INVALID_DN_SYNTAX;
938 : }
939 83226 : rdn = ldb_dn_get_component_val(dn, 0);
940 83226 : if (!rdn) {
941 0 : talloc_free(dn);
942 0 : return LDB_ERR_INVALID_DN_SYNTAX;
943 : }
944 83226 : target_class = dsdb_class_by_cn_ldb_val(schema, rdn);
945 83226 : if (!target_class) {
946 0 : talloc_free(dn);
947 0 : return LDB_ERR_CONSTRAINT_VIOLATION;
948 : }
949 :
950 83226 : status = GUID_to_ndr_blob(&target_class->objectGUID, dn, &guid);
951 83226 : if (!NT_STATUS_IS_OK(status)) {
952 0 : talloc_free(dn);
953 0 : return ldb_operr(ldb);
954 : }
955 83226 : ret = ldb_dn_set_extended_component(dn, "GUID", &guid);
956 83226 : if (ret != LDB_SUCCESS) {
957 0 : ret = ldb_error(ldb, ret, "Could not set GUID");
958 0 : talloc_free(dn);
959 0 : return ret;
960 : }
961 :
962 83226 : cur->defaultObjectCategory = ldb_dn_get_extended_linearized(cur, dn, 1);
963 83226 : talloc_free(dn);
964 : }
965 319 : return LDB_SUCCESS;
966 : }
967 :
968 : /**
969 : * @brief Add a new element to the schema and checks if it's a duplicate
970 : *
971 : * This function will add a new element to the schema and checks for existing
972 : * duplicates.
973 : *
974 : * @param[in] ldb A pointer to an LDB context
975 : *
976 : * @param[in] schema A pointer to the dsdb_schema where the element
977 : * will be added.
978 : *
979 : * @param[in] msg The ldb_message object representing the element
980 : * to add.
981 : *
982 : * @param[in] checkdups A boolean to indicate if checks for duplicates
983 : * should be done.
984 : *
985 : * @return A WERROR code
986 : */
987 32684508 : WERROR dsdb_schema_set_el_from_ldb_msg_dups(struct ldb_context *ldb, struct dsdb_schema *schema,
988 : struct ldb_message *msg, bool checkdups)
989 : {
990 : const char* tstring;
991 : time_t ts;
992 32684508 : tstring = ldb_msg_find_attr_as_string(msg, "whenChanged", NULL);
993 : /* keep a trace of the ts of the most recently changed object */
994 32684508 : if (tstring) {
995 15090 : ts = ldb_string_to_time(tstring);
996 15090 : if (ts > schema->ts_last_change) {
997 39 : schema->ts_last_change = ts;
998 : }
999 : }
1000 32684508 : if (samdb_find_attribute(ldb, msg,
1001 : "objectclass", "attributeSchema") != NULL) {
1002 :
1003 27544412 : return dsdb_set_attribute_from_ldb_dups(ldb, schema, msg, checkdups);
1004 5140096 : } else if (samdb_find_attribute(ldb, msg,
1005 : "objectclass", "classSchema") != NULL) {
1006 5139876 : return dsdb_set_class_from_ldb_dups(schema, msg, checkdups);
1007 : }
1008 : /* Don't fail on things not classes or attributes */
1009 220 : return WERR_OK;
1010 : }
1011 :
1012 32563134 : WERROR dsdb_schema_set_el_from_ldb_msg(struct ldb_context *ldb,
1013 : struct dsdb_schema *schema,
1014 : struct ldb_message *msg)
1015 : {
1016 32563134 : return dsdb_schema_set_el_from_ldb_msg_dups(ldb, schema, msg, false);
1017 : }
1018 :
1019 : /**
1020 : * Rather than read a schema from the LDB itself, read it from an ldif
1021 : * file. This allows schema to be loaded and used while adding the
1022 : * schema itself to the directory.
1023 : *
1024 : * Should be called with a transaction (or failing that, have no concurrent
1025 : * access while called).
1026 : */
1027 :
1028 319 : WERROR dsdb_set_schema_from_ldif(struct ldb_context *ldb,
1029 : const char *pf, const char *df,
1030 : const char *dn)
1031 : {
1032 : struct ldb_ldif *ldif;
1033 : struct ldb_message *msg;
1034 : TALLOC_CTX *mem_ctx;
1035 : WERROR status;
1036 : int ret;
1037 : struct dsdb_schema *schema;
1038 : const struct ldb_val *prefix_val;
1039 : const struct ldb_val *info_val;
1040 : struct ldb_val info_val_default;
1041 :
1042 :
1043 319 : mem_ctx = talloc_new(ldb);
1044 319 : if (!mem_ctx) {
1045 0 : goto nomem;
1046 : }
1047 :
1048 319 : schema = dsdb_new_schema(mem_ctx);
1049 319 : if (!schema) {
1050 0 : goto nomem;
1051 : }
1052 319 : schema->fsmo.we_are_master = true;
1053 319 : schema->fsmo.update_allowed = true;
1054 319 : schema->fsmo.master_dn = ldb_dn_new(schema, ldb, "@PROVISION_SCHEMA_MASTER");
1055 319 : if (!schema->fsmo.master_dn) {
1056 0 : goto nomem;
1057 : }
1058 :
1059 : /*
1060 : * load the prefixMap attribute from pf
1061 : */
1062 319 : ldif = ldb_ldif_read_string(ldb, &pf);
1063 319 : if (!ldif) {
1064 0 : status = WERR_INVALID_PARAMETER;
1065 0 : goto failed;
1066 : }
1067 319 : talloc_steal(mem_ctx, ldif);
1068 :
1069 319 : ret = ldb_msg_normalize(ldb, mem_ctx, ldif->msg, &msg);
1070 319 : if (ret != LDB_SUCCESS) {
1071 0 : goto nomem;
1072 : }
1073 319 : talloc_free(ldif);
1074 :
1075 319 : prefix_val = ldb_msg_find_ldb_val(msg, "prefixMap");
1076 319 : if (!prefix_val) {
1077 0 : status = WERR_INVALID_PARAMETER;
1078 0 : goto failed;
1079 : }
1080 :
1081 319 : info_val = ldb_msg_find_ldb_val(msg, "schemaInfo");
1082 319 : if (!info_val) {
1083 319 : status = dsdb_schema_info_blob_new(mem_ctx, &info_val_default);
1084 319 : W_ERROR_NOT_OK_GOTO(status, failed);
1085 319 : info_val = &info_val_default;
1086 : }
1087 :
1088 319 : status = dsdb_load_oid_mappings_ldb(schema, prefix_val, info_val);
1089 319 : if (!W_ERROR_IS_OK(status)) {
1090 0 : DEBUG(0,("ERROR: dsdb_load_oid_mappings_ldb() failed with %s\n", win_errstr(status)));
1091 0 : goto failed;
1092 : }
1093 :
1094 319 : schema->ts_last_change = 0;
1095 : /* load the attribute and class definitions out of df */
1096 548467 : while ((ldif = ldb_ldif_read_string(ldb, &df))) {
1097 547872 : talloc_steal(mem_ctx, ldif);
1098 :
1099 547872 : ret = ldb_msg_normalize(ldb, ldif, ldif->msg, &msg);
1100 547872 : if (ret != LDB_SUCCESS) {
1101 0 : goto nomem;
1102 : }
1103 :
1104 547872 : status = dsdb_schema_set_el_from_ldb_msg(ldb, schema, msg);
1105 547872 : talloc_free(ldif);
1106 547872 : if (!W_ERROR_IS_OK(status)) {
1107 0 : goto failed;
1108 : }
1109 : }
1110 :
1111 : /*
1112 : * TODO We may need a transaction here, otherwise this causes races.
1113 : *
1114 : * To do so may require an ldb_in_transaction function. In the
1115 : * meantime, assume that this is always called with a transaction or in
1116 : * isolation.
1117 : */
1118 319 : ret = dsdb_set_schema(ldb, schema, SCHEMA_WRITE);
1119 319 : if (ret != LDB_SUCCESS) {
1120 0 : status = WERR_FOOBAR;
1121 0 : DEBUG(0,("ERROR: dsdb_set_schema() failed with %s / %s\n",
1122 : ldb_strerror(ret), ldb_errstring(ldb)));
1123 0 : goto failed;
1124 : }
1125 :
1126 319 : ret = dsdb_schema_fill_extended_dn(ldb, schema);
1127 319 : if (ret != LDB_SUCCESS) {
1128 0 : status = WERR_FOOBAR;
1129 0 : goto failed;
1130 : }
1131 :
1132 319 : goto done;
1133 :
1134 0 : nomem:
1135 0 : status = WERR_NOT_ENOUGH_MEMORY;
1136 276 : failed:
1137 319 : done:
1138 319 : talloc_free(mem_ctx);
1139 319 : return status;
1140 : }
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