2 ldb database mapping module
4 Copyright (C) Jelmer Vernooij 2005
5 Copyright (C) Martin Kuehl <mkhl@samba.org> 2006
6 Copyright (C) Simo Sorce 2008
8 ** NOTE! The following LGPL license applies to the ldb
9 ** library. This does NOT imply that all of Samba is released
12 This library is free software; you can redistribute it and/or
13 modify it under the terms of the GNU Lesser General Public
14 License as published by the Free Software Foundation; either
15 version 3 of the License, or (at your option) any later version.
17 This library is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 Lesser General Public License for more details.
22 You should have received a copy of the GNU Lesser General Public
23 License along with this library; if not, see <http://www.gnu.org/licenses/>.
30 * Component: ldb ldb_map module
32 * Description: Map portions of data into a different format on a
35 * Author: Jelmer Vernooij, Martin Kuehl
38 #include "ldb_includes.h"
40 #include "ldb_map_private.h"
46 /* Description of the provided ldb requests:
47 - special attribute 'isMapped'
50 - if parse tree can be split
51 - search remote records w/ remote attrs and parse tree
53 - enumerate all remote records
54 - for each remote result
55 - map remote result to local message
58 - merge local into remote result
59 - run callback on merged result
61 - run callback on remote result
64 - split message into local and remote part
65 - if local message is not empty
66 - add isMapped to local message
71 - split message into local and remote part
72 - if local message is not empty
73 - add isMapped to local message
74 - search for local record
79 - modify remote record
82 - search for local record
85 - delete remote record
88 - search for local record
91 - modify local isMapped
92 - rename remote record
97 /* Private data structures
98 * ======================= */
100 /* Global private data */
101 /* Extract mappings from private data. */
102 const struct ldb_map_context *map_get_context(struct ldb_module *module)
104 const struct map_private *data = talloc_get_type(ldb_module_get_private(module), struct map_private);
105 return data->context;
108 /* Create a generic request context. */
109 struct map_context *map_init_context(struct ldb_module *module,
110 struct ldb_request *req)
112 struct ldb_context *ldb;
113 struct map_context *ac;
115 ldb = ldb_module_get_ctx(module);
117 ac = talloc_zero(req, struct map_context);
119 ldb_set_errstring(ldb, "Out of Memory");
129 /* Dealing with DNs for different partitions
130 * ========================================= */
132 /* Check whether any data should be stored in the local partition. */
133 bool map_check_local_db(struct ldb_module *module)
135 const struct ldb_map_context *data = map_get_context(module);
137 if (!data->remote_base_dn || !data->local_base_dn) {
144 /* Copy a DN with the base DN of the local partition. */
145 static struct ldb_dn *ldb_dn_rebase_local(void *mem_ctx, const struct ldb_map_context *data, struct ldb_dn *dn)
147 struct ldb_dn *new_dn;
149 new_dn = ldb_dn_copy(mem_ctx, dn);
150 if ( ! ldb_dn_validate(new_dn)) {
155 /* may be we don't need to rebase at all */
156 if ( ! data->remote_base_dn || ! data->local_base_dn) {
160 if ( ! ldb_dn_remove_base_components(new_dn, ldb_dn_get_comp_num(data->remote_base_dn))) {
165 if ( ! ldb_dn_add_base(new_dn, data->local_base_dn)) {
173 /* Copy a DN with the base DN of the remote partition. */
174 static struct ldb_dn *ldb_dn_rebase_remote(void *mem_ctx, const struct ldb_map_context *data, struct ldb_dn *dn)
176 struct ldb_dn *new_dn;
178 new_dn = ldb_dn_copy(mem_ctx, dn);
179 if ( ! ldb_dn_validate(new_dn)) {
184 /* may be we don't need to rebase at all */
185 if ( ! data->remote_base_dn || ! data->local_base_dn) {
189 if ( ! ldb_dn_remove_base_components(new_dn, ldb_dn_get_comp_num(data->local_base_dn))) {
194 if ( ! ldb_dn_add_base(new_dn, data->remote_base_dn)) {
202 /* Run a request and make sure it targets the remote partition. */
203 /* TODO: free old DNs and messages? */
204 int ldb_next_remote_request(struct ldb_module *module, struct ldb_request *request)
206 const struct ldb_map_context *data = map_get_context(module);
207 struct ldb_context *ldb;
208 struct ldb_message *msg;
210 ldb = ldb_module_get_ctx(module);
212 switch (request->operation) {
214 if (request->op.search.base) {
215 request->op.search.base = ldb_dn_rebase_remote(request, data, request->op.search.base);
217 request->op.search.base = data->remote_base_dn;
218 /* TODO: adjust scope? */
223 msg = ldb_msg_copy_shallow(request, request->op.add.message);
224 msg->dn = ldb_dn_rebase_remote(msg, data, msg->dn);
225 request->op.add.message = msg;
229 msg = ldb_msg_copy_shallow(request, request->op.mod.message);
230 msg->dn = ldb_dn_rebase_remote(msg, data, msg->dn);
231 request->op.mod.message = msg;
235 request->op.del.dn = ldb_dn_rebase_remote(request, data, request->op.del.dn);
239 request->op.rename.olddn = ldb_dn_rebase_remote(request, data, request->op.rename.olddn);
240 request->op.rename.newdn = ldb_dn_rebase_remote(request, data, request->op.rename.newdn);
244 ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb_map: "
245 "Invalid remote request!");
246 return LDB_ERR_OPERATIONS_ERROR;
249 return ldb_next_request(module, request);
253 /* Finding mappings for attributes and objectClasses
254 * ================================================= */
256 /* Find an objectClass mapping by the local name. */
257 static const struct ldb_map_objectclass *map_objectclass_find_local(const struct ldb_map_context *data, const char *name)
261 for (i = 0; data->objectclass_maps && data->objectclass_maps[i].local_name; i++) {
262 if (ldb_attr_cmp(data->objectclass_maps[i].local_name, name) == 0) {
263 return &data->objectclass_maps[i];
270 /* Find an objectClass mapping by the remote name. */
271 static const struct ldb_map_objectclass *map_objectclass_find_remote(const struct ldb_map_context *data, const char *name)
275 for (i = 0; data->objectclass_maps && data->objectclass_maps[i].remote_name; i++) {
276 if (ldb_attr_cmp(data->objectclass_maps[i].remote_name, name) == 0) {
277 return &data->objectclass_maps[i];
284 /* Find an attribute mapping by the local name. */
285 const struct ldb_map_attribute *map_attr_find_local(const struct ldb_map_context *data, const char *name)
289 for (i = 0; data->attribute_maps[i].local_name; i++) {
290 if (ldb_attr_cmp(data->attribute_maps[i].local_name, name) == 0) {
291 return &data->attribute_maps[i];
294 for (i = 0; data->attribute_maps[i].local_name; i++) {
295 if (ldb_attr_cmp(data->attribute_maps[i].local_name, "*") == 0) {
296 return &data->attribute_maps[i];
303 /* Find an attribute mapping by the remote name. */
304 const struct ldb_map_attribute *map_attr_find_remote(const struct ldb_map_context *data, const char *name)
306 const struct ldb_map_attribute *map;
307 const struct ldb_map_attribute *wildcard = NULL;
310 for (i = 0; data->attribute_maps[i].local_name; i++) {
311 map = &data->attribute_maps[i];
312 if (ldb_attr_cmp(map->local_name, "*") == 0) {
313 wildcard = &data->attribute_maps[i];
321 if (ldb_attr_cmp(map->local_name, name) == 0) {
328 if (ldb_attr_cmp(map->u.rename.remote_name, name) == 0) {
334 for (j = 0; map->u.generate.remote_names && map->u.generate.remote_names[j]; j++) {
335 if (ldb_attr_cmp(map->u.generate.remote_names[j], name) == 0) {
343 /* We didn't find it, so return the wildcard record if one was configured */
348 /* Mapping attributes
349 * ================== */
351 /* Check whether an attribute will be mapped into the remote partition. */
352 bool map_attr_check_remote(const struct ldb_map_context *data, const char *attr)
354 const struct ldb_map_attribute *map = map_attr_find_local(data, attr);
359 if (map->type == MAP_IGNORE) {
366 /* Map an attribute name into the remote partition. */
367 const char *map_attr_map_local(void *mem_ctx, const struct ldb_map_attribute *map, const char *attr)
370 return talloc_strdup(mem_ctx, attr);
375 return talloc_strdup(mem_ctx, attr);
379 return talloc_strdup(mem_ctx, map->u.rename.remote_name);
386 /* Map an attribute name back into the local partition. */
387 const char *map_attr_map_remote(void *mem_ctx, const struct ldb_map_attribute *map, const char *attr)
390 return talloc_strdup(mem_ctx, attr);
393 if (map->type == MAP_KEEP) {
394 return talloc_strdup(mem_ctx, attr);
397 return talloc_strdup(mem_ctx, map->local_name);
401 /* Merge two lists of attributes into a single one. */
402 int map_attrs_merge(struct ldb_module *module, void *mem_ctx,
403 const char ***attrs, const char * const *more_attrs)
407 for (i = 0; *attrs && (*attrs)[i]; i++) /* noop */ ;
408 for (j = 0; more_attrs && more_attrs[j]; j++) /* noop */ ;
410 *attrs = talloc_realloc(mem_ctx, *attrs, const char *, i+j+1);
411 if (*attrs == NULL) {
416 for (k = 0; k < j; k++) {
417 (*attrs)[i + k] = more_attrs[k];
420 (*attrs)[i+k] = NULL;
425 /* Mapping ldb values
426 * ================== */
428 /* Map an ldb value into the remote partition. */
429 struct ldb_val ldb_val_map_local(struct ldb_module *module, void *mem_ctx,
430 const struct ldb_map_attribute *map, const struct ldb_val *val)
432 if (map && (map->type == MAP_CONVERT) && (map->u.convert.convert_local)) {
433 return map->u.convert.convert_local(module, mem_ctx, val);
436 return ldb_val_dup(mem_ctx, val);
439 /* Map an ldb value back into the local partition. */
440 struct ldb_val ldb_val_map_remote(struct ldb_module *module, void *mem_ctx,
441 const struct ldb_map_attribute *map, const struct ldb_val *val)
443 if (map && (map->type == MAP_CONVERT) && (map->u.convert.convert_remote)) {
444 return map->u.convert.convert_remote(module, mem_ctx, val);
447 return ldb_val_dup(mem_ctx, val);
454 /* Check whether a DN is below the local baseDN. */
455 bool ldb_dn_check_local(struct ldb_module *module, struct ldb_dn *dn)
457 const struct ldb_map_context *data = map_get_context(module);
459 if (!data->local_base_dn) {
463 return ldb_dn_compare_base(data->local_base_dn, dn) == 0;
466 /* Map a DN into the remote partition. */
467 struct ldb_dn *ldb_dn_map_local(struct ldb_module *module, void *mem_ctx, struct ldb_dn *dn)
469 const struct ldb_map_context *data = map_get_context(module);
470 struct ldb_context *ldb;
471 struct ldb_dn *newdn;
472 const struct ldb_map_attribute *map;
473 enum ldb_map_attr_type map_type;
475 struct ldb_val value;
482 ldb = ldb_module_get_ctx(module);
484 newdn = ldb_dn_copy(mem_ctx, dn);
490 /* For each RDN, map the component name and possibly the value */
491 for (i = 0; i < ldb_dn_get_comp_num(newdn); i++) {
492 map = map_attr_find_local(data, ldb_dn_get_component_name(dn, i));
494 /* Unknown attribute - leave this RDN as is and hope the best... */
498 map_type = map->type;
504 ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb_map: "
505 "MAP_IGNORE/MAP_GENERATE attribute '%s' "
506 "used in DN!", ldb_dn_get_component_name(dn, i));
510 if (map->u.convert.convert_local == NULL) {
511 ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb_map: "
512 "'convert_local' not set for attribute '%s' "
513 "used in DN!", ldb_dn_get_component_name(dn, i));
519 name = map_attr_map_local(newdn, map, ldb_dn_get_component_name(dn, i));
520 if (name == NULL) goto failed;
522 value = ldb_val_map_local(module, newdn, map, ldb_dn_get_component_val(dn, i));
523 if (value.data == NULL) goto failed;
525 ret = ldb_dn_set_component(newdn, i, name, value);
526 if (ret != LDB_SUCCESS) {
541 /* Map a DN into the local partition. */
542 struct ldb_dn *ldb_dn_map_remote(struct ldb_module *module, void *mem_ctx, struct ldb_dn *dn)
544 const struct ldb_map_context *data = map_get_context(module);
545 struct ldb_context *ldb;
546 struct ldb_dn *newdn;
547 const struct ldb_map_attribute *map;
548 enum ldb_map_attr_type map_type;
550 struct ldb_val value;
557 ldb = ldb_module_get_ctx(module);
559 newdn = ldb_dn_copy(mem_ctx, dn);
565 /* For each RDN, map the component name and possibly the value */
566 for (i = 0; i < ldb_dn_get_comp_num(newdn); i++) {
567 map = map_attr_find_remote(data, ldb_dn_get_component_name(dn, i));
569 /* Unknown attribute - leave this RDN as is and hope the best... */
573 map_type = map->type;
579 ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb_map: "
580 "MAP_IGNORE/MAP_GENERATE attribute '%s' "
581 "used in DN!", ldb_dn_get_component_name(dn, i));
585 if (map->u.convert.convert_remote == NULL) {
586 ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb_map: "
587 "'convert_remote' not set for attribute '%s' "
588 "used in DN!", ldb_dn_get_component_name(dn, i));
594 name = map_attr_map_remote(newdn, map, ldb_dn_get_component_name(dn, i));
595 if (name == NULL) goto failed;
597 value = ldb_val_map_remote(module, newdn, map, ldb_dn_get_component_val(dn, i));
598 if (value.data == NULL) goto failed;
600 ret = ldb_dn_set_component(newdn, i, name, value);
601 if (ret != LDB_SUCCESS) {
616 /* Map a DN and its base into the local partition. */
617 /* TODO: This should not be required with GUIDs. */
618 struct ldb_dn *ldb_dn_map_rebase_remote(struct ldb_module *module, void *mem_ctx, struct ldb_dn *dn)
620 const struct ldb_map_context *data = map_get_context(module);
621 struct ldb_dn *dn1, *dn2;
623 dn1 = ldb_dn_rebase_local(mem_ctx, data, dn);
624 dn2 = ldb_dn_map_remote(module, mem_ctx, dn1);
631 /* Converting DNs and objectClasses (as ldb values)
632 * ================================================ */
634 /* Map a DN contained in an ldb value into the remote partition. */
635 static struct ldb_val ldb_dn_convert_local(struct ldb_module *module, void *mem_ctx, const struct ldb_val *val)
637 struct ldb_context *ldb;
638 struct ldb_dn *dn, *newdn;
639 struct ldb_val newval;
641 ldb = ldb_module_get_ctx(module);
643 dn = ldb_dn_from_ldb_val(mem_ctx, ldb, val);
644 if (! ldb_dn_validate(dn)) {
650 newdn = ldb_dn_map_local(module, mem_ctx, dn);
654 newval.data = (uint8_t *)ldb_dn_alloc_linearized(mem_ctx, newdn);
656 newval.length = strlen((char *)newval.data);
663 /* Map a DN contained in an ldb value into the local partition. */
664 static struct ldb_val ldb_dn_convert_remote(struct ldb_module *module, void *mem_ctx, const struct ldb_val *val)
666 struct ldb_context *ldb;
667 struct ldb_dn *dn, *newdn;
668 struct ldb_val newval;
670 ldb = ldb_module_get_ctx(module);
672 dn = ldb_dn_from_ldb_val(mem_ctx, ldb, val);
673 if (! ldb_dn_validate(dn)) {
679 newdn = ldb_dn_map_remote(module, mem_ctx, dn);
683 newval.data = (uint8_t *)ldb_dn_alloc_linearized(mem_ctx, newdn);
685 newval.length = strlen((char *)newval.data);
692 /* Map an objectClass into the remote partition. */
693 static struct ldb_val map_objectclass_convert_local(struct ldb_module *module, void *mem_ctx, const struct ldb_val *val)
695 const struct ldb_map_context *data = map_get_context(module);
696 const char *name = (char *)val->data;
697 const struct ldb_map_objectclass *map = map_objectclass_find_local(data, name);
698 struct ldb_val newval;
701 newval.data = (uint8_t*)talloc_strdup(mem_ctx, map->remote_name);
702 newval.length = strlen((char *)newval.data);
706 return ldb_val_dup(mem_ctx, val);
709 /* Generate a remote message with a mapped objectClass. */
710 static void map_objectclass_generate_remote(struct ldb_module *module, const char *local_attr, const struct ldb_message *old, struct ldb_message *remote, struct ldb_message *local)
712 const struct ldb_map_context *data = map_get_context(module);
713 struct ldb_context *ldb;
714 struct ldb_message_element *el, *oc;
716 bool found_extensibleObject = false;
719 ldb = ldb_module_get_ctx(module);
721 /* Find old local objectClass */
722 oc = ldb_msg_find_element(old, "objectClass");
727 /* Prepare new element */
728 el = talloc_zero(remote, struct ldb_message_element);
731 return; /* TODO: fail? */
734 /* Copy local objectClass element, reverse space for an extra value */
735 el->num_values = oc->num_values + 1;
736 el->values = talloc_array(el, struct ldb_val, el->num_values);
737 if (el->values == NULL) {
740 return; /* TODO: fail? */
743 /* Copy local element name "objectClass" */
744 el->name = talloc_strdup(el, local_attr);
746 /* Convert all local objectClasses */
747 for (i = 0; i < el->num_values - 1; i++) {
748 el->values[i] = map_objectclass_convert_local(module, el->values, &oc->values[i]);
749 if (ldb_attr_cmp((char *)el->values[i].data, data->add_objectclass) == 0) {
750 found_extensibleObject = true;
754 if (!found_extensibleObject) {
755 val.data = (uint8_t *)talloc_strdup(el->values, data->add_objectclass);
756 val.length = strlen((char *)val.data);
758 /* Append additional objectClass data->add_objectclass */
764 /* Add new objectClass to remote message */
765 ldb_msg_add(remote, el, 0);
768 /* Map an objectClass into the local partition. */
769 static struct ldb_val map_objectclass_convert_remote(struct ldb_module *module, void *mem_ctx, const struct ldb_val *val)
771 const struct ldb_map_context *data = map_get_context(module);
772 const char *name = (char *)val->data;
773 const struct ldb_map_objectclass *map = map_objectclass_find_remote(data, name);
774 struct ldb_val newval;
777 newval.data = (uint8_t*)talloc_strdup(mem_ctx, map->local_name);
778 newval.length = strlen((char *)newval.data);
782 return ldb_val_dup(mem_ctx, val);
785 /* Generate a local message with a mapped objectClass. */
786 static struct ldb_message_element *map_objectclass_generate_local(struct ldb_module *module, void *mem_ctx, const char *local_attr, const struct ldb_message *remote)
788 const struct ldb_map_context *data = map_get_context(module);
789 struct ldb_context *ldb;
790 struct ldb_message_element *el, *oc;
794 ldb = ldb_module_get_ctx(module);
796 /* Find old remote objectClass */
797 oc = ldb_msg_find_element(remote, "objectClass");
802 /* Prepare new element */
803 el = talloc_zero(mem_ctx, struct ldb_message_element);
809 /* Copy remote objectClass element */
810 el->num_values = oc->num_values;
811 el->values = talloc_array(el, struct ldb_val, el->num_values);
812 if (el->values == NULL) {
818 /* Copy remote element name "objectClass" */
819 el->name = talloc_strdup(el, local_attr);
821 /* Convert all remote objectClasses */
822 for (i = 0; i < el->num_values; i++) {
823 el->values[i] = map_objectclass_convert_remote(module, el->values, &oc->values[i]);
826 val.data = (uint8_t *)talloc_strdup(el->values, data->add_objectclass);
827 val.length = strlen((char *)val.data);
829 /* Remove last value if it was the string in data->add_objectclass (eg samba4top, extensibleObject) */
830 if (ldb_val_equal_exact(&val, &el->values[i-1])) {
832 el->values = talloc_realloc(el, el->values, struct ldb_val, el->num_values);
833 if (el->values == NULL) {
843 static const struct ldb_map_attribute objectclass_convert_map = {
844 .local_name = "objectClass",
848 .remote_name = "objectClass",
849 .convert_local = map_objectclass_convert_local,
850 .convert_remote = map_objectclass_convert_remote,
856 /* Mappings for searches on objectClass= assuming a one-to-one
857 * mapping. Needed because this is a generate operator for the
859 static int map_objectclass_convert_operator(struct ldb_module *module, void *mem_ctx,
860 struct ldb_parse_tree **new, const struct ldb_parse_tree *tree)
863 return map_subtree_collect_remote_simple(module, mem_ctx, new, tree, &objectclass_convert_map);
866 /* Auxiliary request construction
867 * ============================== */
869 /* Build a request to search a record by its DN. */
870 struct ldb_request *map_search_base_req(struct map_context *ac, struct ldb_dn *dn, const char * const *attrs, const struct ldb_parse_tree *tree, void *context, ldb_map_callback_t callback)
872 const struct ldb_parse_tree *search_tree;
873 struct ldb_context *ldb;
874 struct ldb_request *req;
877 ldb = ldb_module_get_ctx(ac->module);
882 search_tree = ldb_parse_tree(ac, NULL);
883 if (search_tree == NULL) {
888 ret = ldb_build_search_req_ex(&req, ldb, ac,
894 if (ret != LDB_SUCCESS) {
901 /* Build a request to update the 'IS_MAPPED' attribute */
902 struct ldb_request *map_build_fixup_req(struct map_context *ac,
903 struct ldb_dn *olddn,
904 struct ldb_dn *newdn,
906 ldb_map_callback_t callback)
908 struct ldb_context *ldb;
909 struct ldb_request *req;
910 struct ldb_message *msg;
914 ldb = ldb_module_get_ctx(ac->module);
916 /* Prepare message */
917 msg = ldb_msg_new(ac);
923 /* Update local 'IS_MAPPED' to the new remote DN */
924 msg->dn = ldb_dn_copy(msg, olddn);
925 dn = ldb_dn_alloc_linearized(msg, newdn);
926 if ( ! dn || ! ldb_dn_validate(msg->dn)) {
929 if (ldb_msg_add_empty(msg, IS_MAPPED, LDB_FLAG_MOD_REPLACE, NULL) != 0) {
932 if (ldb_msg_add_string(msg, IS_MAPPED, dn) != 0) {
936 /* Prepare request */
937 ret = ldb_build_mod_req(&req, ldb,
941 if (ret != LDB_SUCCESS) {
944 talloc_steal(req, msg);
952 /* Module initialization
953 * ===================== */
956 /* Builtin mappings for DNs and objectClasses */
957 static const struct ldb_map_attribute builtin_attribute_maps[] = {
964 .convert_local = ldb_dn_convert_local,
965 .convert_remote = ldb_dn_convert_remote,
974 static const struct ldb_map_attribute objectclass_attribute_map = {
975 .local_name = "objectClass",
976 .type = MAP_GENERATE,
977 .convert_operator = map_objectclass_convert_operator,
980 .remote_names = { "objectClass", NULL },
981 .generate_local = map_objectclass_generate_local,
982 .generate_remote = map_objectclass_generate_remote,
988 /* Find the special 'MAP_DN_NAME' record and store local and remote
989 * base DNs in private data. */
990 static int map_init_dns(struct ldb_module *module, struct ldb_map_context *data, const char *name)
992 static const char * const attrs[] = { MAP_DN_FROM, MAP_DN_TO, NULL };
993 struct ldb_context *ldb;
995 struct ldb_message *msg;
996 struct ldb_result *res;
1000 data->local_base_dn = NULL;
1001 data->remote_base_dn = NULL;
1005 ldb = ldb_module_get_ctx(module);
1007 dn = ldb_dn_new_fmt(data, ldb, "%s=%s", MAP_DN_NAME, name);
1008 if ( ! ldb_dn_validate(dn)) {
1009 ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb_map: "
1010 "Failed to construct '%s' DN!", MAP_DN_NAME);
1011 return LDB_ERR_OPERATIONS_ERROR;
1014 ret = ldb_search(ldb, data, &res, dn, LDB_SCOPE_BASE, attrs, NULL);
1016 if (ret != LDB_SUCCESS) {
1019 if (res->count == 0) {
1020 ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb_map: "
1021 "No results for '%s=%s'!", MAP_DN_NAME, name);
1023 return LDB_ERR_CONSTRAINT_VIOLATION;
1025 if (res->count > 1) {
1026 ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb_map: "
1027 "Too many results for '%s=%s'!", MAP_DN_NAME, name);
1029 return LDB_ERR_CONSTRAINT_VIOLATION;
1033 data->local_base_dn = ldb_msg_find_attr_as_dn(ldb, data, msg, MAP_DN_FROM);
1034 data->remote_base_dn = ldb_msg_find_attr_as_dn(ldb, data, msg, MAP_DN_TO);
1040 /* Store attribute maps and objectClass maps in private data. */
1041 static int map_init_maps(struct ldb_module *module, struct ldb_map_context *data,
1042 const struct ldb_map_attribute *attrs,
1043 const struct ldb_map_objectclass *ocls,
1044 const char * const *wildcard_attributes)
1049 /* Count specified attribute maps */
1050 for (i = 0; attrs[i].local_name; i++) /* noop */ ;
1051 /* Count built-in attribute maps */
1052 for (j = 0; builtin_attribute_maps[j].local_name; j++) /* noop */ ;
1054 /* Store list of attribute maps */
1055 data->attribute_maps = talloc_array(data, struct ldb_map_attribute, i+j+2);
1056 if (data->attribute_maps == NULL) {
1058 return LDB_ERR_OPERATIONS_ERROR;
1061 /* Specified ones go first */
1062 for (i = 0; attrs[i].local_name; i++) {
1063 data->attribute_maps[last] = attrs[i];
1067 /* Built-in ones go last */
1068 for (i = 0; builtin_attribute_maps[i].local_name; i++) {
1069 data->attribute_maps[last] = builtin_attribute_maps[i];
1073 if (data->add_objectclass) {
1074 /* ObjectClass one is very last, if required */
1075 data->attribute_maps[last] = objectclass_attribute_map;
1078 data->attribute_maps[last] = objectclass_convert_map;
1082 /* Ensure 'local_name == NULL' for the last entry */
1083 memset(&data->attribute_maps[last], 0, sizeof(struct ldb_map_attribute));
1085 /* Store list of objectClass maps */
1086 data->objectclass_maps = ocls;
1088 data->wildcard_attributes = wildcard_attributes;
1093 /* Initialize global private data. */
1094 _PUBLIC_ int ldb_map_init(struct ldb_module *module, const struct ldb_map_attribute *attrs,
1095 const struct ldb_map_objectclass *ocls,
1096 const char * const *wildcard_attributes,
1097 const char *add_objectclass,
1100 struct map_private *data;
1103 /* Prepare private data */
1104 data = talloc_zero(module, struct map_private);
1107 return LDB_ERR_OPERATIONS_ERROR;
1110 ldb_module_set_private(module, data);
1112 data->context = talloc_zero(data, struct ldb_map_context);
1113 if (!data->context) {
1115 return LDB_ERR_OPERATIONS_ERROR;
1118 /* Store local and remote baseDNs */
1119 ret = map_init_dns(module, data->context, name);
1120 if (ret != LDB_SUCCESS) {
1125 data->context->add_objectclass = add_objectclass;
1127 /* Store list of attribute and objectClass maps */
1128 ret = map_init_maps(module, data->context, attrs, ocls, wildcard_attributes);
1129 if (ret != LDB_SUCCESS) {