2 Unix SMB/CIFS mplementation.
5 Copyright (C) Stefan Metzmacher <metze@samba.org> 2006-2007
6 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006-2008
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "dlinklist.h"
25 #include "dsdb/samdb/samdb.h"
26 #include "lib/ldb/include/ldb_module.h"
27 #include "param/param.h"
30 override the name to attribute handler function
32 const struct ldb_schema_attribute *dsdb_attribute_handler_override(struct ldb_context *ldb,
36 struct dsdb_schema *schema = talloc_get_type_abort(private_data, struct dsdb_schema);
37 const struct dsdb_attribute *a = dsdb_attribute_by_lDAPDisplayName(schema, name);
39 /* this will fall back to ldb internal handling */
42 return a->ldb_schema_attribute;
45 static int dsdb_schema_set_attributes(struct ldb_context *ldb, struct dsdb_schema *schema, bool write_attributes)
47 int ret = LDB_SUCCESS;
48 struct ldb_result *res;
49 struct ldb_result *res_idx;
50 struct dsdb_attribute *attr;
51 struct ldb_message *mod_msg;
53 struct ldb_message *msg;
54 struct ldb_message *msg_idx;
56 /* setup our own attribute name to schema handler */
57 ldb_schema_attribute_set_override_handler(ldb, dsdb_attribute_handler_override, schema);
59 if (!write_attributes) {
64 mem_ctx = talloc_new(ldb);
66 return LDB_ERR_OPERATIONS_ERROR;
69 msg = ldb_msg_new(mem_ctx);
74 msg_idx = ldb_msg_new(mem_ctx);
79 msg->dn = ldb_dn_new(msg, ldb, "@ATTRIBUTES");
84 msg_idx->dn = ldb_dn_new(msg, ldb, "@INDEXLIST");
90 for (attr = schema->attributes; attr; attr = attr->next) {
91 const char *syntax = attr->syntax->ldb_syntax;
94 syntax = attr->syntax->ldap_oid;
97 /* Write out a rough approximation of the schema as an @ATTRIBUTES value, for bootstrapping */
98 if (strcmp(syntax, LDB_SYNTAX_INTEGER) == 0) {
99 ret = ldb_msg_add_string(msg, attr->lDAPDisplayName, "INTEGER");
100 } else if (strcmp(syntax, LDB_SYNTAX_DIRECTORY_STRING) == 0) {
101 ret = ldb_msg_add_string(msg, attr->lDAPDisplayName, "CASE_INSENSITIVE");
103 if (ret != LDB_SUCCESS) {
107 if (attr->searchFlags & SEARCH_FLAG_ATTINDEX) {
108 ret = ldb_msg_add_string(msg_idx, "@IDXATTR", attr->lDAPDisplayName);
109 if (ret != LDB_SUCCESS) {
115 if (ret != LDB_SUCCESS) {
116 talloc_free(mem_ctx);
120 /* Try to avoid churning the attributes too much - we only want to do this if they have changed */
121 ret = ldb_search(ldb, mem_ctx, &res, msg->dn, LDB_SCOPE_BASE, NULL, "dn=%s", ldb_dn_get_linearized(msg->dn));
122 if (ret == LDB_ERR_NO_SUCH_OBJECT) {
123 ret = ldb_add(ldb, msg);
124 } else if (ret != LDB_SUCCESS) {
125 } else if (res->count != 1) {
126 ret = ldb_add(ldb, msg);
129 /* Annoyingly added to our search results */
130 ldb_msg_remove_attr(res->msgs[0], "distinguishedName");
132 mod_msg = ldb_msg_diff(ldb, res->msgs[0], msg);
133 if (mod_msg->num_elements > 0) {
134 ret = ldb_modify(ldb, mod_msg);
138 if (ret == LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS) {
139 /* We might be on a read-only DB */
142 if (ret != LDB_SUCCESS) {
143 talloc_free(mem_ctx);
147 /* Now write out the indexs, as found in the schema (if they have changed) */
149 ret = ldb_search(ldb, mem_ctx, &res_idx, msg_idx->dn, LDB_SCOPE_BASE, NULL, "dn=%s", ldb_dn_get_linearized(msg_idx->dn));
150 if (ret == LDB_ERR_NO_SUCH_OBJECT) {
151 ret = ldb_add(ldb, msg_idx);
152 } else if (ret != LDB_SUCCESS) {
153 } else if (res->count != 1) {
154 ret = ldb_add(ldb, msg_idx);
157 /* Annoyingly added to our search results */
158 ldb_msg_remove_attr(res_idx->msgs[0], "distinguishedName");
160 mod_msg = ldb_msg_diff(ldb, res_idx->msgs[0], msg_idx);
161 if (mod_msg->num_elements > 0) {
162 ret = ldb_modify(ldb, mod_msg);
165 if (ret == LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS) {
166 /* We might be on a read-only DB */
169 talloc_free(mem_ctx);
173 talloc_free(mem_ctx);
174 return LDB_ERR_OPERATIONS_ERROR;
177 static int dsdb_compare_class_by_lDAPDisplayName(struct dsdb_class **c1, struct dsdb_class **c2)
179 return strcasecmp((*c1)->lDAPDisplayName, (*c2)->lDAPDisplayName);
181 static int dsdb_compare_class_by_governsID_id(struct dsdb_class **c1, struct dsdb_class **c2)
183 return (*c1)->governsID_id - (*c2)->governsID_id;
185 static int dsdb_compare_class_by_governsID_oid(struct dsdb_class **c1, struct dsdb_class **c2)
187 return strcasecmp((*c1)->governsID_oid, (*c2)->governsID_oid);
189 static int dsdb_compare_class_by_cn(struct dsdb_class **c1, struct dsdb_class **c2)
191 return strcasecmp((*c1)->cn, (*c2)->cn);
194 static int dsdb_compare_attribute_by_lDAPDisplayName(struct dsdb_attribute **a1, struct dsdb_attribute **a2)
196 return strcasecmp((*a1)->lDAPDisplayName, (*a2)->lDAPDisplayName);
198 static int dsdb_compare_attribute_by_attributeID_id(struct dsdb_attribute **a1, struct dsdb_attribute **a2)
200 return (*a1)->attributeID_id - (*a2)->attributeID_id;
202 static int dsdb_compare_attribute_by_attributeID_oid(struct dsdb_attribute **a1, struct dsdb_attribute **a2)
204 return strcasecmp((*a1)->attributeID_oid, (*a2)->attributeID_oid);
206 static int dsdb_compare_attribute_by_linkID(struct dsdb_attribute **a1, struct dsdb_attribute **a2)
208 return (*a1)->linkID - (*a2)->linkID;
212 create the sorted accessor arrays for the schema
214 static int dsdb_setup_sorted_accessors(struct ldb_context *ldb,
215 struct dsdb_schema *schema)
217 struct dsdb_class *cur;
218 struct dsdb_attribute *a;
221 talloc_free(schema->classes_by_lDAPDisplayName);
222 talloc_free(schema->classes_by_governsID_id);
223 talloc_free(schema->classes_by_governsID_oid);
224 talloc_free(schema->classes_by_cn);
226 /* count the classes */
227 for (i=0, cur=schema->classes; cur; i++, cur=cur->next) /* noop */ ;
228 schema->num_classes = i;
230 /* setup classes_by_* */
231 schema->classes_by_lDAPDisplayName = talloc_array(schema, struct dsdb_class *, i);
232 schema->classes_by_governsID_id = talloc_array(schema, struct dsdb_class *, i);
233 schema->classes_by_governsID_oid = talloc_array(schema, struct dsdb_class *, i);
234 schema->classes_by_cn = talloc_array(schema, struct dsdb_class *, i);
235 if (schema->classes_by_lDAPDisplayName == NULL ||
236 schema->classes_by_governsID_id == NULL ||
237 schema->classes_by_governsID_oid == NULL ||
238 schema->classes_by_cn == NULL) {
242 for (i=0, cur=schema->classes; cur; i++, cur=cur->next) {
243 schema->classes_by_lDAPDisplayName[i] = cur;
244 schema->classes_by_governsID_id[i] = cur;
245 schema->classes_by_governsID_oid[i] = cur;
246 schema->classes_by_cn[i] = cur;
249 /* sort the arrays */
250 qsort(schema->classes_by_lDAPDisplayName, schema->num_classes,
251 sizeof(struct dsdb_class *), QSORT_CAST dsdb_compare_class_by_lDAPDisplayName);
252 qsort(schema->classes_by_governsID_id, schema->num_classes,
253 sizeof(struct dsdb_class *), QSORT_CAST dsdb_compare_class_by_governsID_id);
254 qsort(schema->classes_by_governsID_oid, schema->num_classes,
255 sizeof(struct dsdb_class *), QSORT_CAST dsdb_compare_class_by_governsID_oid);
256 qsort(schema->classes_by_cn, schema->num_classes,
257 sizeof(struct dsdb_class *), QSORT_CAST dsdb_compare_class_by_cn);
259 /* now build the attribute accessor arrays */
260 talloc_free(schema->attributes_by_lDAPDisplayName);
261 talloc_free(schema->attributes_by_attributeID_id);
262 talloc_free(schema->attributes_by_attributeID_oid);
263 talloc_free(schema->attributes_by_linkID);
265 /* count the attributes */
266 for (i=0, a=schema->attributes; a; i++, a=a->next) /* noop */ ;
267 schema->num_attributes = i;
269 /* setup attributes_by_* */
270 schema->attributes_by_lDAPDisplayName = talloc_array(schema, struct dsdb_attribute *, i);
271 schema->attributes_by_attributeID_id = talloc_array(schema, struct dsdb_attribute *, i);
272 schema->attributes_by_attributeID_oid = talloc_array(schema, struct dsdb_attribute *, i);
273 schema->attributes_by_linkID = talloc_array(schema, struct dsdb_attribute *, i);
274 if (schema->attributes_by_lDAPDisplayName == NULL ||
275 schema->attributes_by_attributeID_id == NULL ||
276 schema->attributes_by_attributeID_oid == NULL ||
277 schema->attributes_by_linkID == NULL) {
281 for (i=0, a=schema->attributes; a; i++, a=a->next) {
282 schema->attributes_by_lDAPDisplayName[i] = a;
283 schema->attributes_by_attributeID_id[i] = a;
284 schema->attributes_by_attributeID_oid[i] = a;
285 schema->attributes_by_linkID[i] = a;
288 /* sort the arrays */
289 qsort(schema->attributes_by_lDAPDisplayName, schema->num_attributes,
290 sizeof(struct dsdb_attribute *), QSORT_CAST dsdb_compare_attribute_by_lDAPDisplayName);
291 qsort(schema->attributes_by_attributeID_id, schema->num_attributes,
292 sizeof(struct dsdb_attribute *), QSORT_CAST dsdb_compare_attribute_by_attributeID_id);
293 qsort(schema->attributes_by_attributeID_oid, schema->num_attributes,
294 sizeof(struct dsdb_attribute *), QSORT_CAST dsdb_compare_attribute_by_attributeID_oid);
295 qsort(schema->attributes_by_linkID, schema->num_attributes,
296 sizeof(struct dsdb_attribute *), QSORT_CAST dsdb_compare_attribute_by_linkID);
301 schema->classes_by_lDAPDisplayName = NULL;
302 schema->classes_by_governsID_id = NULL;
303 schema->classes_by_governsID_oid = NULL;
304 schema->classes_by_cn = NULL;
305 schema->attributes_by_lDAPDisplayName = NULL;
306 schema->attributes_by_attributeID_id = NULL;
307 schema->attributes_by_attributeID_oid = NULL;
308 schema->attributes_by_linkID = NULL;
310 return LDB_ERR_OPERATIONS_ERROR;
315 * Attach the schema to an opaque pointer on the ldb, so ldb modules
319 int dsdb_set_schema(struct ldb_context *ldb, struct dsdb_schema *schema)
323 ret = dsdb_setup_sorted_accessors(ldb, schema);
324 if (ret != LDB_SUCCESS) {
328 ret = ldb_set_opaque(ldb, "dsdb_schema", schema);
329 if (ret != LDB_SUCCESS) {
333 /* Set the new attributes based on the new schema */
334 ret = dsdb_schema_set_attributes(ldb, schema, true);
335 if (ret != LDB_SUCCESS) {
339 talloc_steal(ldb, schema);
345 * Global variable to hold one copy of the schema, used to avoid memory bloat
347 static struct dsdb_schema *global_schema;
350 * Make this ldb use the 'global' schema, setup to avoid having multiple copies in this process
352 int dsdb_set_global_schema(struct ldb_context *ldb)
355 if (!global_schema) {
359 ret = ldb_set_opaque(ldb, "dsdb_schema", global_schema);
360 if (ret != LDB_SUCCESS) {
364 /* Set the new attributes based on the new schema */
365 ret = dsdb_schema_set_attributes(ldb, global_schema, false);
366 if (ret != LDB_SUCCESS) {
370 /* Keep a reference to this schema, just incase the global copy is replaced */
371 if (talloc_reference(ldb, global_schema) == NULL) {
372 return LDB_ERR_OPERATIONS_ERROR;
379 * Find the schema object for this ldb
382 struct dsdb_schema *dsdb_get_schema(struct ldb_context *ldb)
385 struct dsdb_schema *schema;
387 /* see if we have a cached copy */
388 p = ldb_get_opaque(ldb, "dsdb_schema");
393 schema = talloc_get_type(p, struct dsdb_schema);
402 * Make the schema found on this ldb the 'global' schema
405 void dsdb_make_schema_global(struct ldb_context *ldb)
407 struct dsdb_schema *schema = dsdb_get_schema(ldb);
413 talloc_unlink(talloc_autofree_context(), schema);
416 talloc_steal(talloc_autofree_context(), schema);
417 global_schema = schema;
419 dsdb_set_global_schema(ldb);
424 * Rather than read a schema from the LDB itself, read it from an ldif
425 * file. This allows schema to be loaded and used while adding the
426 * schema itself to the directory.
429 WERROR dsdb_attach_schema_from_ldif(struct ldb_context *ldb, const char *pf, const char *df)
431 struct ldb_ldif *ldif;
432 struct ldb_message *msg;
436 struct dsdb_schema *schema;
437 const struct ldb_val *prefix_val;
438 const struct ldb_val *info_val;
439 struct ldb_val info_val_default;
441 mem_ctx = talloc_new(ldb);
446 schema = dsdb_new_schema(mem_ctx, lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")));
448 schema->fsmo.we_are_master = true;
449 schema->fsmo.master_dn = ldb_dn_new_fmt(schema, ldb, "@PROVISION_SCHEMA_MASTER");
450 if (!schema->fsmo.master_dn) {
455 * load the prefixMap attribute from pf
457 ldif = ldb_ldif_read_string(ldb, &pf);
459 status = WERR_INVALID_PARAM;
462 talloc_steal(mem_ctx, ldif);
464 msg = ldb_msg_canonicalize(ldb, ldif->msg);
468 talloc_steal(mem_ctx, msg);
471 prefix_val = ldb_msg_find_ldb_val(msg, "prefixMap");
473 status = WERR_INVALID_PARAM;
477 info_val = ldb_msg_find_ldb_val(msg, "schemaInfo");
479 info_val_default = strhex_to_data_blob(mem_ctx, "FF0000000000000000000000000000000000000000");
480 if (!info_val_default.data) {
483 info_val = &info_val_default;
486 status = dsdb_load_oid_mappings_ldb(schema, prefix_val, info_val);
487 if (!W_ERROR_IS_OK(status)) {
492 * load the attribute and class definitions outof df
494 while ((ldif = ldb_ldif_read_string(ldb, &df))) {
498 talloc_steal(mem_ctx, ldif);
500 msg = ldb_msg_canonicalize(ldb, ldif->msg);
505 talloc_steal(mem_ctx, msg);
508 is_sa = ldb_msg_check_string_attribute(msg, "objectClass", "attributeSchema");
509 is_sc = ldb_msg_check_string_attribute(msg, "objectClass", "classSchema");
512 struct dsdb_attribute *sa;
514 sa = talloc_zero(schema, struct dsdb_attribute);
519 status = dsdb_attribute_from_ldb(ldb, schema, msg, sa, sa);
520 if (!W_ERROR_IS_OK(status)) {
524 DLIST_ADD_END(schema->attributes, sa, struct dsdb_attribute *);
526 struct dsdb_class *sc;
528 sc = talloc_zero(schema, struct dsdb_class);
533 status = dsdb_class_from_ldb(schema, msg, sc, sc);
534 if (!W_ERROR_IS_OK(status)) {
538 DLIST_ADD_END(schema->classes, sc, struct dsdb_class *);
542 ret = dsdb_set_schema(ldb, schema);
543 if (ret != LDB_SUCCESS) {
544 status = WERR_FOOBAR;
554 talloc_free(mem_ctx);