2 Unix SMB/CIFS implementation.
4 Copyright (C) 2004-2007, Jelmer Vernooij, jelmer@samba.org
5 Copyright (C) 2008-2010, Matthias Dieter Wallnöfer, mdw@samba.org
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include <ldb_errors.h>
26 #include "librpc/gen_ndr/winreg.h"
27 #include "param/param.h"
29 static struct hive_operations reg_backend_ldb;
34 struct ldb_context *ldb;
36 struct ldb_message **subkeys, **values;
37 unsigned int subkey_count, value_count;
38 const char *classname;
41 static void reg_ldb_unpack_value(TALLOC_CTX *mem_ctx,
42 struct ldb_message *msg,
43 const char **name, uint32_t *type,
46 const struct ldb_val *val;
50 *name = talloc_strdup(mem_ctx,
51 ldb_msg_find_attr_as_string(msg, "value",
55 value_type = ldb_msg_find_attr_as_uint(msg, "type", 0);
58 val = ldb_msg_find_ldb_val(msg, "data");
65 /* The data should be provided as UTF16 string */
66 convert_string_talloc(mem_ctx, CH_UTF8, CH_UTF16,
67 val->data, val->length,
68 (void **)&data->data, &data->length);
76 case REG_DWORD_BIG_ENDIAN:
79 /* The data is a plain DWORD */
82 tmp = strtoul_err((char *)val->data, NULL, 0, &error);
88 data->data = talloc_size(mem_ctx, sizeof(uint32_t));
89 if (data->data != NULL) {
90 SIVAL(data->data, 0, tmp);
92 data->length = sizeof(uint32_t);
102 /* The data is a plain QWORD */
105 tmp = strtoull_err((char *)val->data, NULL, 0, &error);
111 data->data = talloc_size(mem_ctx, sizeof(uint64_t));
112 if (data->data != NULL) {
113 SBVAL(data->data, 0, tmp);
115 data->length = sizeof(uint64_t);
125 data->data = talloc_memdup(mem_ctx, val->data,
127 data->length = val->length;
136 static struct ldb_message *reg_ldb_pack_value(struct ldb_context *ctx,
139 uint32_t type, DATA_BLOB data)
141 struct ldb_message *msg;
142 char *name_dup, *type_str;
145 msg = talloc_zero(mem_ctx, struct ldb_message);
150 name_dup = talloc_strdup(msg, name);
151 if (name_dup == NULL) {
156 ret = ldb_msg_add_string(msg, "value", name_dup);
157 if (ret != LDB_SUCCESS) {
165 if ((data.length > 0) && (data.data != NULL)) {
169 val = talloc_zero(msg, struct ldb_val);
175 /* The data is provided as UTF16 string */
176 ret2 = convert_string_talloc(mem_ctx, CH_UTF16, CH_UTF8,
177 (void *)data.data, data.length,
178 (void **)&val->data, &val->length);
180 ret = ldb_msg_add_value(msg, "data", val, NULL);
182 /* workaround for non-standard data */
183 ret = ldb_msg_add_empty(msg, "data", LDB_FLAG_MOD_DELETE, NULL);
186 ret = ldb_msg_add_empty(msg, "data", LDB_FLAG_MOD_DELETE, NULL);
191 case REG_DWORD_BIG_ENDIAN:
192 if ((data.length > 0) && (data.data != NULL)) {
193 if (data.length == sizeof(uint32_t)) {
196 conv_str = talloc_asprintf(msg, "0x%8.8x",
198 if (conv_str == NULL) {
202 ret = ldb_msg_add_string(msg, "data", conv_str);
204 /* workaround for non-standard data */
209 ret = ldb_msg_add_empty(msg, "data", LDB_FLAG_MOD_DELETE, NULL);
214 if ((data.length > 0) && (data.data != NULL)) {
215 if (data.length == sizeof(uint64_t)) {
218 conv_str = talloc_asprintf(msg, "0x%16.16llx",
219 (unsigned long long)BVAL(data.data, 0));
220 if (conv_str == NULL) {
224 ret = ldb_msg_add_string(msg, "data", conv_str);
226 /* workaround for non-standard data */
232 ret = ldb_msg_add_empty(msg, "data", LDB_FLAG_MOD_DELETE, NULL);
238 if ((data.length > 0) && (data.data != NULL)) {
239 ret = ldb_msg_add_value(msg, "data", &data, NULL);
241 ret = ldb_msg_add_empty(msg, "data", LDB_FLAG_MOD_DELETE, NULL);
246 if (ret != LDB_SUCCESS) {
251 type_str = talloc_asprintf(mem_ctx, "%u", type);
252 if (type_str == NULL) {
257 ret = ldb_msg_add_string(msg, "type", type_str);
258 if (ret != LDB_SUCCESS) {
266 static char *reg_ldb_escape(TALLOC_CTX *mem_ctx, const char *value)
270 val.data = discard_const_p(uint8_t, value);
271 val.length = strlen(value);
273 return ldb_dn_escape_value(mem_ctx, val);
276 static int reg_close_ldb_key(struct ldb_key_data *key)
278 if (key->subkeys != NULL) {
279 talloc_free(key->subkeys);
283 if (key->values != NULL) {
284 talloc_free(key->values);
290 static struct ldb_dn *reg_path_to_ldb(TALLOC_CTX *mem_ctx,
291 const struct hive_key *from,
292 const char *path, const char *add)
297 struct ldb_key_data *kd = talloc_get_type(from, struct ldb_key_data);
298 struct ldb_context *ldb = kd->ldb;
300 mypath = talloc_strdup(mem_ctx, path);
301 if (mypath == NULL) {
305 ret = ldb_dn_new(mem_ctx, ldb, add);
306 if (!ldb_dn_validate(ret)) {
311 if (!ldb_dn_add_base(ret, kd->dn)) {
316 while (mypath[0] != '\0') {
317 begin = strchr(mypath, '\\');
322 if (!ldb_dn_add_child_fmt(ret, "key=%s",
323 reg_ldb_escape(mem_ctx, mypath))) {
338 static WERROR cache_subkeys(struct ldb_key_data *kd)
340 struct ldb_context *c = kd->ldb;
341 struct ldb_result *res;
344 ret = ldb_search(c, c, &res, kd->dn, LDB_SCOPE_ONELEVEL,
346 if (ret != LDB_SUCCESS) {
347 DEBUG(0, ("Error getting subkeys for '%s': %s\n",
348 ldb_dn_get_linearized(kd->dn), ldb_errstring(c)));
352 kd->subkey_count = res->count;
353 kd->subkeys = talloc_steal(kd, res->msgs);
359 static WERROR cache_values(struct ldb_key_data *kd)
361 struct ldb_context *c = kd->ldb;
362 struct ldb_result *res;
365 ret = ldb_search(c, c, &res, kd->dn, LDB_SCOPE_ONELEVEL,
367 if (ret != LDB_SUCCESS) {
368 DEBUG(0, ("Error getting values for '%s': %s\n",
369 ldb_dn_get_linearized(kd->dn), ldb_errstring(c)));
373 kd->value_count = res->count;
374 kd->values = talloc_steal(kd, res->msgs);
381 static WERROR ldb_get_subkey_by_id(TALLOC_CTX *mem_ctx,
382 const struct hive_key *k, uint32_t idx,
384 const char **classname,
385 NTTIME *last_mod_time)
387 struct ldb_key_data *kd = talloc_get_type(k, struct ldb_key_data);
392 if (classname != NULL)
394 if (last_mod_time != NULL)
395 *last_mod_time = 0; /* TODO: we need to add this to the
396 ldb backend properly */
398 /* Do a search if necessary */
399 if (kd->subkeys == NULL) {
400 W_ERROR_NOT_OK_RETURN(cache_subkeys(kd));
403 if (idx >= kd->subkey_count)
404 return WERR_NO_MORE_ITEMS;
407 *name = talloc_strdup(mem_ctx,
408 ldb_msg_find_attr_as_string(kd->subkeys[idx], "key", NULL));
409 if (classname != NULL)
410 *classname = talloc_strdup(mem_ctx,
411 ldb_msg_find_attr_as_string(kd->subkeys[idx], "classname", NULL));
416 static WERROR ldb_get_default_value(TALLOC_CTX *mem_ctx,
417 const struct hive_key *k,
418 const char **name, uint32_t *data_type,
421 struct ldb_key_data *kd = talloc_get_type(k, struct ldb_key_data);
422 struct ldb_context *c = kd->ldb;
423 const char* attrs[] = { "data", "type", NULL };
424 struct ldb_result *res;
427 ret = ldb_search(c, mem_ctx, &res, kd->dn, LDB_SCOPE_BASE, attrs,
430 if (ret != LDB_SUCCESS) {
431 DEBUG(0, ("Error getting default value for '%s': %s\n",
432 ldb_dn_get_linearized(kd->dn), ldb_errstring(c)));
436 if (res->count == 0 || res->msgs[0]->num_elements == 0) {
438 return WERR_FILE_NOT_FOUND;
441 if ((data_type != NULL) && (data != NULL)) {
442 reg_ldb_unpack_value(mem_ctx, res->msgs[0], name, data_type,
451 static WERROR ldb_get_value_by_id(TALLOC_CTX *mem_ctx, struct hive_key *k,
452 uint32_t idx, const char **name,
453 uint32_t *data_type, DATA_BLOB *data)
455 struct ldb_key_data *kd = talloc_get_type(k, struct ldb_key_data);
457 /* if the default value exists, give it back */
458 if (W_ERROR_IS_OK(ldb_get_default_value(mem_ctx, k, name, data_type,
466 /* Do the search if necessary */
467 if (kd->values == NULL) {
468 W_ERROR_NOT_OK_RETURN(cache_values(kd));
471 if (idx >= kd->value_count)
472 return WERR_NO_MORE_ITEMS;
474 reg_ldb_unpack_value(mem_ctx, kd->values[idx], name, data_type, data);
479 static WERROR ldb_get_value(TALLOC_CTX *mem_ctx, struct hive_key *k,
480 const char *name, uint32_t *data_type,
483 struct ldb_key_data *kd = talloc_get_type(k, struct ldb_key_data);
484 const char *res_name;
487 /* the default value was requested, give it back */
488 if (name[0] == '\0') {
489 return ldb_get_default_value(mem_ctx, k, NULL, data_type, data);
492 /* Do the search if necessary */
493 if (kd->values == NULL) {
494 W_ERROR_NOT_OK_RETURN(cache_values(kd));
497 for (idx = 0; idx < kd->value_count; idx++) {
498 res_name = ldb_msg_find_attr_as_string(kd->values[idx], "value",
500 if (ldb_attr_cmp(name, res_name) == 0) {
501 reg_ldb_unpack_value(mem_ctx, kd->values[idx], NULL,
507 return WERR_FILE_NOT_FOUND;
510 static WERROR ldb_open_key(TALLOC_CTX *mem_ctx, const struct hive_key *h,
511 const char *name, struct hive_key **key)
513 struct ldb_result *res;
514 struct ldb_dn *ldb_path;
516 struct ldb_key_data *newkd;
517 struct ldb_key_data *kd = talloc_get_type(h, struct ldb_key_data);
518 struct ldb_context *c = kd->ldb;
520 ldb_path = reg_path_to_ldb(mem_ctx, h, name, NULL);
521 W_ERROR_HAVE_NO_MEMORY(ldb_path);
523 ret = ldb_search(c, mem_ctx, &res, ldb_path, LDB_SCOPE_BASE, NULL,
526 if (ret != LDB_SUCCESS) {
527 DEBUG(3, ("Error opening key '%s': %s\n",
528 ldb_dn_get_linearized(ldb_path), ldb_errstring(c)));
530 } else if (res->count == 0) {
531 DEBUG(3, ("Key '%s' not found\n",
532 ldb_dn_get_linearized(ldb_path)));
534 return WERR_FILE_NOT_FOUND;
537 newkd = talloc_zero(mem_ctx, struct ldb_key_data);
538 W_ERROR_HAVE_NO_MEMORY(newkd);
539 newkd->key.ops = ®_backend_ldb;
540 newkd->ldb = talloc_reference(newkd, kd->ldb);
541 newkd->dn = ldb_dn_copy(newkd, res->msgs[0]->dn);
542 newkd->classname = talloc_steal(newkd,
543 ldb_msg_find_attr_as_string(res->msgs[0], "classname", NULL));
547 *key = (struct hive_key *)newkd;
552 WERROR reg_open_ldb_file(TALLOC_CTX *parent_ctx, const char *location,
553 struct auth_session_info *session_info,
554 struct cli_credentials *credentials,
555 struct tevent_context *ev_ctx,
556 struct loadparm_context *lp_ctx,
559 struct ldb_key_data *kd;
560 struct ldb_context *wrap;
561 struct ldb_message *attrs_msg;
563 if (location == NULL)
564 return WERR_INVALID_PARAMETER;
566 wrap = ldb_wrap_connect(parent_ctx, ev_ctx, lp_ctx,
567 location, session_info, credentials, 0);
570 DEBUG(1, (__FILE__": unable to connect\n"));
574 attrs_msg = ldb_msg_new(wrap);
575 W_ERROR_HAVE_NO_MEMORY(attrs_msg);
576 attrs_msg->dn = ldb_dn_new(attrs_msg, wrap, "@ATTRIBUTES");
577 W_ERROR_HAVE_NO_MEMORY(attrs_msg->dn);
578 ldb_msg_add_string(attrs_msg, "key", "CASE_INSENSITIVE");
579 ldb_msg_add_string(attrs_msg, "value", "CASE_INSENSITIVE");
581 ldb_add(wrap, attrs_msg);
583 ldb_set_debug_stderr(wrap);
585 kd = talloc_zero(parent_ctx, struct ldb_key_data);
586 kd->key.ops = ®_backend_ldb;
587 kd->ldb = talloc_reference(kd, wrap);
588 talloc_set_destructor (kd, reg_close_ldb_key);
589 kd->dn = ldb_dn_new(kd, wrap, "hive=NONE");
591 *k = (struct hive_key *)kd;
596 static WERROR ldb_add_key(TALLOC_CTX *mem_ctx, const struct hive_key *parent,
597 const char *name, const char *classname,
598 struct security_descriptor *sd,
599 struct hive_key **newkey)
601 struct ldb_key_data *parentkd = discard_const_p(struct ldb_key_data, parent);
602 struct ldb_dn *ldb_path;
603 struct ldb_message *msg;
604 struct ldb_key_data *newkd;
607 ldb_path = reg_path_to_ldb(mem_ctx, parent, name, NULL);
608 W_ERROR_HAVE_NO_MEMORY(ldb_path);
610 msg = ldb_msg_new(mem_ctx);
611 W_ERROR_HAVE_NO_MEMORY(msg);
615 ldb_msg_add_string(msg, "key", name);
616 if (classname != NULL) {
617 ldb_msg_add_string(msg, "classname", classname);
620 ret = ldb_add(parentkd->ldb, msg);
624 if (ret == LDB_ERR_ENTRY_ALREADY_EXISTS) {
625 return WERR_ALREADY_EXISTS;
628 if (ret != LDB_SUCCESS) {
629 DEBUG(1, ("ldb_add: %s\n", ldb_errstring(parentkd->ldb)));
633 DEBUG(2, ("key added: %s\n", ldb_dn_get_linearized(ldb_path)));
635 newkd = talloc_zero(mem_ctx, struct ldb_key_data);
636 W_ERROR_HAVE_NO_MEMORY(newkd);
637 newkd->ldb = talloc_reference(newkd, parentkd->ldb);
638 newkd->key.ops = ®_backend_ldb;
639 newkd->dn = talloc_steal(newkd, ldb_path);
640 newkd->classname = talloc_steal(newkd, classname);
642 *newkey = (struct hive_key *)newkd;
645 talloc_free(parentkd->subkeys);
646 parentkd->subkeys = NULL;
651 static WERROR ldb_del_value(TALLOC_CTX *mem_ctx, struct hive_key *key,
655 struct ldb_key_data *kd = talloc_get_type(key, struct ldb_key_data);
656 struct ldb_message *msg;
657 struct ldb_dn *childdn;
659 if (child[0] == '\0') {
661 msg = talloc_zero(mem_ctx, struct ldb_message);
662 W_ERROR_HAVE_NO_MEMORY(msg);
663 msg->dn = ldb_dn_copy(msg, kd->dn);
664 W_ERROR_HAVE_NO_MEMORY(msg->dn);
665 ret = ldb_msg_add_empty(msg, "data", LDB_FLAG_MOD_DELETE, NULL);
666 if (ret != LDB_SUCCESS) {
669 ret = ldb_msg_add_empty(msg, "type", LDB_FLAG_MOD_DELETE,
671 if (ret != LDB_SUCCESS) {
675 ret = ldb_modify(kd->ldb, msg);
679 if (ret == LDB_ERR_NO_SUCH_ATTRIBUTE) {
680 return WERR_FILE_NOT_FOUND;
681 } else if (ret != LDB_SUCCESS) {
682 DEBUG(1, ("ldb_del_value: %s\n", ldb_errstring(kd->ldb)));
687 childdn = ldb_dn_copy(kd->ldb, kd->dn);
688 if (!ldb_dn_add_child_fmt(childdn, "value=%s",
689 reg_ldb_escape(childdn, child)))
691 talloc_free(childdn);
695 ret = ldb_delete(kd->ldb, childdn);
697 talloc_free(childdn);
699 if (ret == LDB_ERR_NO_SUCH_OBJECT) {
700 return WERR_FILE_NOT_FOUND;
701 } else if (ret != LDB_SUCCESS) {
702 DEBUG(1, ("ldb_del_value: %s\n", ldb_errstring(kd->ldb)));
708 talloc_free(kd->values);
714 static WERROR ldb_del_key(TALLOC_CTX *mem_ctx, const struct hive_key *key,
719 struct ldb_key_data *parentkd = talloc_get_type(key, struct ldb_key_data);
720 struct ldb_dn *ldb_path;
721 struct ldb_context *c = parentkd->ldb;
722 struct ldb_result *res_keys;
723 struct ldb_result *res_vals;
727 /* Verify key exists by opening it */
728 werr = ldb_open_key(mem_ctx, key, name, &hk);
729 if (!W_ERROR_IS_OK(werr)) {
733 ldb_path = reg_path_to_ldb(mem_ctx, key, name, NULL);
734 W_ERROR_HAVE_NO_MEMORY(ldb_path);
736 /* Search for subkeys */
737 ret = ldb_search(c, mem_ctx, &res_keys, ldb_path, LDB_SCOPE_ONELEVEL,
740 if (ret != LDB_SUCCESS) {
741 DEBUG(0, ("Error getting subkeys for '%s': %s\n",
742 ldb_dn_get_linearized(ldb_path), ldb_errstring(c)));
746 /* Search for values */
747 ret = ldb_search(c, mem_ctx, &res_vals, ldb_path, LDB_SCOPE_ONELEVEL,
750 if (ret != LDB_SUCCESS) {
751 DEBUG(0, ("Error getting values for '%s': %s\n",
752 ldb_dn_get_linearized(ldb_path), ldb_errstring(c)));
756 /* Start an explicit transaction */
757 ret = ldb_transaction_start(c);
759 if (ret != LDB_SUCCESS) {
760 DEBUG(0, ("ldb_transaction_start: %s\n", ldb_errstring(c)));
764 if (res_keys->count || res_vals->count)
766 /* Delete any subkeys */
767 for (i = 0; i < res_keys->count; i++)
769 werr = ldb_del_key(mem_ctx, hk,
770 ldb_msg_find_attr_as_string(
773 if (!W_ERROR_IS_OK(werr)) {
774 ret = ldb_transaction_cancel(c);
779 /* Delete any values */
780 for (i = 0; i < res_vals->count; i++)
782 werr = ldb_del_value(mem_ctx, hk,
783 ldb_msg_find_attr_as_string(
786 if (!W_ERROR_IS_OK(werr)) {
787 ret = ldb_transaction_cancel(c);
792 talloc_free(res_keys);
793 talloc_free(res_vals);
795 /* Delete the key itself */
796 ret = ldb_delete(c, ldb_path);
798 if (ret != LDB_SUCCESS)
800 DEBUG(1, ("ldb_del_key: %s\n", ldb_errstring(c)));
801 ret = ldb_transaction_cancel(c);
805 /* Commit the transaction */
806 ret = ldb_transaction_commit(c);
808 if (ret != LDB_SUCCESS)
810 DEBUG(0, ("ldb_transaction_commit: %s\n", ldb_errstring(c)));
811 ret = ldb_transaction_cancel(c);
816 talloc_free(parentkd->subkeys);
817 parentkd->subkeys = NULL;
822 static WERROR ldb_set_value(struct hive_key *parent,
823 const char *name, uint32_t type,
824 const DATA_BLOB data)
826 struct ldb_message *msg;
827 struct ldb_key_data *kd = talloc_get_type(parent, struct ldb_key_data);
830 TALLOC_CTX *mem_ctx = talloc_init("ldb_set_value");
832 msg = reg_ldb_pack_value(kd->ldb, mem_ctx, name, type, data);
833 W_ERROR_HAVE_NO_MEMORY(msg);
835 msg->dn = ldb_dn_copy(msg, kd->dn);
836 W_ERROR_HAVE_NO_MEMORY(msg->dn);
838 if (name[0] != '\0') {
839 /* For a default value, we add/overwrite the attributes to/of the hive.
840 For a normal value, we create a new child. */
841 if (!ldb_dn_add_child_fmt(msg->dn, "value=%s",
842 reg_ldb_escape(mem_ctx, name)))
844 talloc_free(mem_ctx);
849 /* Try first a "modify" and if this doesn't work do try an "add" */
850 for (i = 0; i < msg->num_elements; i++) {
851 if (msg->elements[i].flags != LDB_FLAG_MOD_DELETE) {
852 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
855 ret = ldb_modify(kd->ldb, msg);
856 if (ret == LDB_ERR_NO_SUCH_OBJECT) {
858 while (i < msg->num_elements) {
859 if (LDB_FLAG_MOD_TYPE(msg->elements[i].flags) == LDB_FLAG_MOD_DELETE) {
860 ldb_msg_remove_element(msg, &msg->elements[i]);
865 ret = ldb_add(kd->ldb, msg);
867 if (ret == LDB_ERR_NO_SUCH_ATTRIBUTE) {
868 /* ignore this -> the value didn't exist and also now doesn't */
874 if (ret != LDB_SUCCESS) {
875 DEBUG(1, ("ldb_set_value: %s\n", ldb_errstring(kd->ldb)));
876 talloc_free(mem_ctx);
881 talloc_free(kd->values);
884 talloc_free(mem_ctx);
888 static WERROR ldb_get_key_info(TALLOC_CTX *mem_ctx,
889 const struct hive_key *key,
890 const char **classname,
891 uint32_t *num_subkeys,
892 uint32_t *num_values,
893 NTTIME *last_change_time,
894 uint32_t *max_subkeynamelen,
895 uint32_t *max_valnamelen,
896 uint32_t *max_valbufsize)
898 struct ldb_key_data *kd = talloc_get_type(key, struct ldb_key_data);
899 uint32_t default_value_type = REG_NONE;
900 DATA_BLOB default_value = { NULL, 0 };
904 if (classname != NULL)
906 if (num_subkeys != NULL)
908 if (num_values != NULL)
910 if (last_change_time != NULL)
911 *last_change_time = 0;
912 if (max_subkeynamelen != NULL)
913 *max_subkeynamelen = 0;
914 if (max_valnamelen != NULL)
916 if (max_valbufsize != NULL)
919 /* We need this to get the default value (if it exists) for counting
920 * the values under the key and for finding out the longest value buffer
921 * size. If no default value exists the DATA_BLOB "default_value" will
922 * remain { NULL, 0 }. */
923 werr = ldb_get_default_value(mem_ctx, key, NULL, &default_value_type,
925 if ((!W_ERROR_IS_OK(werr)) && (!W_ERROR_EQUAL(werr, WERR_FILE_NOT_FOUND))) {
929 if (kd->subkeys == NULL) {
930 W_ERROR_NOT_OK_RETURN(cache_subkeys(kd));
932 if (kd->values == NULL) {
933 W_ERROR_NOT_OK_RETURN(cache_values(kd));
936 if (classname != NULL) {
937 *classname = kd->classname;
940 if (num_subkeys != NULL) {
941 *num_subkeys = kd->subkey_count;
943 if (num_values != NULL) {
944 *num_values = kd->value_count;
945 /* also consider the default value if it exists */
946 if (default_value.data != NULL) {
952 if (max_subkeynamelen != NULL) {
954 struct ldb_message_element *el;
956 for (i = 0; i < kd->subkey_count; i++) {
957 el = ldb_msg_find_element(kd->subkeys[i], "key");
958 *max_subkeynamelen = MAX(*max_subkeynamelen, el->values[0].length);
962 if (max_valnamelen != NULL || max_valbufsize != NULL) {
964 struct ldb_message_element *el;
965 W_ERROR_NOT_OK_RETURN(cache_values(kd));
967 /* also consider the default value if it exists */
968 if ((max_valbufsize != NULL) && (default_value.data != NULL)) {
969 *max_valbufsize = MAX(*max_valbufsize,
970 default_value.length);
973 for (i = 0; i < kd->value_count; i++) {
974 if (max_valnamelen != NULL) {
975 el = ldb_msg_find_element(kd->values[i], "value");
976 *max_valnamelen = MAX(*max_valnamelen, el->values[0].length);
979 if (max_valbufsize != NULL) {
982 reg_ldb_unpack_value(mem_ctx,
985 *max_valbufsize = MAX(*max_valbufsize, data.length);
986 talloc_free(data.data);
991 talloc_free(default_value.data);
996 static struct hive_operations reg_backend_ldb = {
998 .add_key = ldb_add_key,
999 .del_key = ldb_del_key,
1000 .get_key_by_name = ldb_open_key,
1001 .enum_value = ldb_get_value_by_id,
1002 .enum_key = ldb_get_subkey_by_id,
1003 .set_value = ldb_set_value,
1004 .get_value_by_name = ldb_get_value,
1005 .delete_value = ldb_del_value,
1006 .get_key_info = ldb_get_key_info,