2 Unix SMB/CIFS implementation.
6 Copyright (C) Andrew Tridgell 2005
7 Copyright (C) Simo Sorce 2005-2008
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.
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.
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/>.
24 #include "lib/ldb/include/ldb.h"
25 #include "lib/ldb/include/ldb_errors.h"
26 #include "lib/ldb/include/ldb_private.h"
27 #include "system/time.h"
28 #include "dsdb/samdb/samdb.h"
35 struct ldb_dn **partitions;
39 return 1 if a specific attribute has been requested
41 static int do_attribute(const char * const *attrs, const char *name)
43 return attrs == NULL ||
44 ldb_attr_in_list(attrs, name) ||
45 ldb_attr_in_list(attrs, "*");
48 static int do_attribute_explicit(const char * const *attrs, const char *name)
50 return attrs != NULL && ldb_attr_in_list(attrs, name);
55 add dynamically generated attributes to rootDSE result
57 static int rootdse_add_dynamic(struct ldb_module *module, struct ldb_message *msg, const char * const *attrs)
59 struct private_data *priv = talloc_get_type(module->private_data, struct private_data);
61 const struct dsdb_schema *schema;
63 schema = dsdb_get_schema(module->ldb);
65 msg->dn = ldb_dn_new(msg, module->ldb, NULL);
67 /* don't return the distinduishedName, cn and name attributes */
68 ldb_msg_remove_attr(msg, "distinguishedName");
69 ldb_msg_remove_attr(msg, "cn");
70 ldb_msg_remove_attr(msg, "name");
72 if (do_attribute(attrs, "currentTime")) {
73 if (ldb_msg_add_steal_string(msg, "currentTime",
74 ldb_timestring(msg, time(NULL))) != 0) {
79 if (do_attribute(attrs, "supportedControl")) {
81 for (i = 0; i < priv->num_controls; i++) {
82 char *control = talloc_strdup(msg, priv->controls[i]);
86 if (ldb_msg_add_steal_string(msg, "supportedControl",
93 if (do_attribute(attrs, "namingContexts")) {
95 for (i = 0; i < priv->num_partitions; i++) {
96 struct ldb_dn *dn = priv->partitions[i];
97 if (ldb_msg_add_steal_string(msg, "namingContexts",
98 ldb_dn_alloc_linearized(msg, dn)) != 0) {
104 server_sasl = talloc_get_type(ldb_get_opaque(module->ldb, "supportedSASLMechanims"),
106 if (server_sasl && do_attribute(attrs, "supportedSASLMechanisms")) {
108 for (i = 0; server_sasl && server_sasl[i]; i++) {
109 char *sasl_name = talloc_strdup(msg, server_sasl[i]);
113 if (ldb_msg_add_steal_string(msg, "supportedSASLMechanisms",
120 if (do_attribute(attrs, "highestCommittedUSN")) {
122 int ret = ldb_sequence_number(module->ldb, LDB_SEQ_HIGHEST_SEQ, &seq_num);
123 if (ret == LDB_SUCCESS) {
124 if (ldb_msg_add_fmt(msg, "highestCommittedUSN",
125 "%llu", (unsigned long long)seq_num) != 0) {
131 if (schema && do_attribute_explicit(attrs, "dsSchemaAttrCount")) {
132 struct dsdb_attribute *cur;
135 for (cur = schema->attributes; cur; cur = cur->next) {
139 if (ldb_msg_add_fmt(msg, "dsSchemaAttrCount",
145 if (schema && do_attribute_explicit(attrs, "dsSchemaClassCount")) {
146 struct dsdb_class *cur;
149 for (cur = schema->classes; cur; cur = cur->next) {
153 if (ldb_msg_add_fmt(msg, "dsSchemaClassCount",
159 if (schema && do_attribute_explicit(attrs, "dsSchemaPrefixCount")) {
160 if (ldb_msg_add_fmt(msg, "dsSchemaPrefixCount",
161 "%u", schema->num_prefixes) != 0) {
166 if (do_attribute_explicit(attrs, "validFSMOs")) {
167 const struct dsdb_naming_fsmo *naming_fsmo;
168 const struct dsdb_pdc_fsmo *pdc_fsmo;
171 if (schema && schema->fsmo.we_are_master) {
172 dn_str = ldb_dn_get_linearized(samdb_schema_dn(module->ldb));
173 if (dn_str && dn_str[0]) {
174 if (ldb_msg_add_fmt(msg, "validFSMOs", "%s", dn_str) != 0) {
180 naming_fsmo = talloc_get_type(ldb_get_opaque(module->ldb, "dsdb_naming_fsmo"),
181 struct dsdb_naming_fsmo);
182 if (naming_fsmo && naming_fsmo->we_are_master) {
183 dn_str = ldb_dn_get_linearized(samdb_partitions_dn(module->ldb, msg));
184 if (dn_str && dn_str[0]) {
185 if (ldb_msg_add_fmt(msg, "validFSMOs", "%s", dn_str) != 0) {
191 pdc_fsmo = talloc_get_type(ldb_get_opaque(module->ldb, "dsdb_pdc_fsmo"),
192 struct dsdb_pdc_fsmo);
193 if (pdc_fsmo && pdc_fsmo->we_are_master) {
194 dn_str = ldb_dn_get_linearized(samdb_base_dn(module->ldb));
195 if (dn_str && dn_str[0]) {
196 if (ldb_msg_add_fmt(msg, "validFSMOs", "%s", dn_str) != 0) {
203 if (schema && do_attribute_explicit(attrs, "vendorVersion")) {
204 if (ldb_msg_add_fmt(msg, "vendorVersion",
205 "%s", SAMBA_VERSION_STRING) != 0) {
210 /* TODO: lots more dynamic attributes should be added here */
215 return LDB_ERR_OPERATIONS_ERROR;
219 handle search requests
222 struct rootdse_context {
223 struct ldb_module *module;
224 struct ldb_request *req;
227 static struct rootdse_context *rootdse_init_context(struct ldb_module *module,
228 struct ldb_request *req)
230 struct rootdse_context *ac;
232 ac = talloc_zero(req, struct rootdse_context);
234 ldb_set_errstring(module->ldb, "Out of Memory");
244 static int rootdse_callback(struct ldb_request *req, struct ldb_reply *ares)
246 struct rootdse_context *ac;
249 ac = talloc_get_type(req->context, struct rootdse_context);
252 return ldb_module_done(ac->req, NULL, NULL,
253 LDB_ERR_OPERATIONS_ERROR);
255 if (ares->error != LDB_SUCCESS) {
256 return ldb_module_done(ac->req, ares->controls,
257 ares->response, ares->error);
260 switch (ares->type) {
261 case LDB_REPLY_ENTRY:
263 * if the client explicit asks for the 'netlogon' attribute
264 * the reply_entry needs to be skipped
266 if (ac->req->op.search.attrs &&
267 ldb_attr_in_list(ac->req->op.search.attrs, "netlogon")) {
272 /* for each record returned post-process to add any dynamic
273 attributes that have been asked for */
274 ret = rootdse_add_dynamic(ac->module, ares->message,
275 ac->req->op.search.attrs);
276 if (ret != LDB_SUCCESS) {
278 return ldb_module_done(ac->req, NULL, NULL, ret);
281 return ldb_module_send_entry(ac->req, ares->message, ares->controls);
283 case LDB_REPLY_REFERRAL:
284 /* should we allow the backend to return referrals in this case
289 return ldb_module_done(ac->req, ares->controls,
290 ares->response, ares->error);
297 static int rootdse_search(struct ldb_module *module, struct ldb_request *req)
299 struct rootdse_context *ac;
300 struct ldb_request *down_req;
303 /* see if its for the rootDSE - only a base search on the "" DN qualifies */
304 if (!(req->op.search.scope == LDB_SCOPE_BASE && ldb_dn_is_null(req->op.search.base))) {
305 /* Otherwise, pass down to the rest of the stack */
306 return ldb_next_request(module, req);
309 ac = rootdse_init_context(module, req);
311 return LDB_ERR_OPERATIONS_ERROR;
314 /* in our db we store the rootDSE with a DN of @ROOTDSE */
315 ret = ldb_build_search_req(&down_req, module->ldb, ac,
316 ldb_dn_new(ac, module->ldb, "@ROOTDSE"),
319 req->op.search.attrs,
320 NULL,/* for now skip the controls from the client */
321 ac, rootdse_callback,
323 if (ret != LDB_SUCCESS) {
327 return ldb_next_request(module, down_req);
330 static int rootdse_register_control(struct ldb_module *module, struct ldb_request *req)
332 struct private_data *priv = talloc_get_type(module->private_data, struct private_data);
335 list = talloc_realloc(priv, priv->controls, char *, priv->num_controls + 1);
337 return LDB_ERR_OPERATIONS_ERROR;
340 list[priv->num_controls] = talloc_strdup(list, req->op.reg_control.oid);
341 if (!list[priv->num_controls]) {
342 return LDB_ERR_OPERATIONS_ERROR;
345 priv->num_controls += 1;
346 priv->controls = list;
348 return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
351 static int rootdse_register_partition(struct ldb_module *module, struct ldb_request *req)
353 struct private_data *priv = talloc_get_type(module->private_data, struct private_data);
354 struct ldb_dn **list;
356 list = talloc_realloc(priv, priv->partitions, struct ldb_dn *, priv->num_partitions + 1);
358 return LDB_ERR_OPERATIONS_ERROR;
361 list[priv->num_partitions] = ldb_dn_copy(list, req->op.reg_partition.dn);
362 if (!list[priv->num_partitions]) {
363 return LDB_ERR_OPERATIONS_ERROR;
366 priv->num_partitions += 1;
367 priv->partitions = list;
369 return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
373 static int rootdse_request(struct ldb_module *module, struct ldb_request *req)
375 switch (req->operation) {
377 case LDB_REQ_REGISTER_CONTROL:
378 return rootdse_register_control(module, req);
379 case LDB_REQ_REGISTER_PARTITION:
380 return rootdse_register_partition(module, req);
385 return ldb_next_request(module, req);
388 static int rootdse_init(struct ldb_module *module)
390 struct private_data *data;
392 data = talloc(module, struct private_data);
397 data->num_controls = 0;
398 data->controls = NULL;
399 data->num_partitions = 0;
400 data->partitions = NULL;
401 module->private_data = data;
403 ldb_set_default_dns(module->ldb);
405 return ldb_next_init(module);
408 static int rootdse_modify(struct ldb_module *module, struct ldb_request *req)
410 struct ldb_result *ext_res;
412 struct ldb_dn *schema_dn;
413 struct ldb_message_element *schemaUpdateNowAttr;
416 If dn is not "" we should let it pass through
418 if (!ldb_dn_is_null(req->op.mod.message->dn)) {
419 return ldb_next_request(module, req);
423 dn is empty so check for schemaUpdateNow attribute
424 "The type of modification and values specified in the LDAP modify operation do not matter." MSDN
426 schemaUpdateNowAttr = ldb_msg_find_element(req->op.mod.message, "schemaUpdateNow");
427 if (!schemaUpdateNowAttr) {
428 return LDB_ERR_OPERATIONS_ERROR;
431 schema_dn = samdb_schema_dn(module->ldb);
433 ldb_reset_err_string(module->ldb);
434 ldb_debug(module->ldb, LDB_DEBUG_WARNING,
435 "rootdse_modify: no schema dn present: (skip ldb_extended call)\n");
436 return ldb_next_request(module, req);
439 ret = ldb_extended(module->ldb, DSDB_EXTENDED_SCHEMA_UPDATE_NOW_OID, schema_dn, &ext_res);
440 if (ret != LDB_SUCCESS) {
441 return LDB_ERR_OPERATIONS_ERROR;
444 talloc_free(ext_res);
448 _PUBLIC_ const struct ldb_module_ops ldb_rootdse_module_ops = {
450 .init_context = rootdse_init,
451 .search = rootdse_search,
452 .request = rootdse_request,
453 .modify = rootdse_modify