2 Unix SMB/CIFS implementation.
6 Copyright (C) Andrew Tridgell 2005
7 Copyright (C) Simo Sorce 2005
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 2 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, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include "lib/ldb/include/ldb.h"
26 #include "lib/ldb/include/ldb_errors.h"
27 #include "lib/ldb/include/ldb_private.h"
28 #include "system/time.h"
34 struct ldb_dn **partitions;
38 return 1 if a specific attribute has been requested
40 static int do_attribute(const char * const *attrs, const char *name)
42 return attrs == NULL ||
43 ldb_attr_in_list(attrs, name) ||
44 ldb_attr_in_list(attrs, "*");
49 add dynamically generated attributes to rootDSE result
51 static int rootdse_add_dynamic(struct ldb_module *module, struct ldb_message *msg, const char * const *attrs)
53 struct private_data *priv = talloc_get_type(module->private_data, struct private_data);
56 msg->dn = ldb_dn_explode(msg, "");
58 /* don't return the distinduishedName, cn and name attributes */
59 ldb_msg_remove_attr(msg, "distinguishedName");
60 ldb_msg_remove_attr(msg, "cn");
61 ldb_msg_remove_attr(msg, "name");
63 if (do_attribute(attrs, "currentTime")) {
64 if (ldb_msg_add_steal_string(msg, "currentTime",
65 ldb_timestring(msg, time(NULL))) != 0) {
70 if (do_attribute(attrs, "supportedControl")) {
72 for (i = 0; i < priv->num_controls; i++) {
73 char *control = talloc_strdup(msg, priv->controls[i]);
77 if (ldb_msg_add_steal_string(msg, "supportedControl",
84 if (do_attribute(attrs, "namingContexts")) {
86 for (i = 0; i < priv->num_partitions; i++) {
87 struct ldb_dn *dn = priv->partitions[i];
88 if (ldb_msg_add_steal_string(msg, "namingContexts",
89 ldb_dn_linearize(msg, dn)) != 0) {
95 server_sasl = talloc_get_type(ldb_get_opaque(module->ldb, "supportedSASLMechanims"),
97 if (server_sasl && do_attribute(attrs, "supportedSASLMechanisms")) {
99 for (i = 0; server_sasl && server_sasl[i]; i++) {
100 char *sasl_name = talloc_strdup(msg, server_sasl[i]);
104 if (ldb_msg_add_steal_string(msg, "supportedSASLMechanisms",
111 if (do_attribute(attrs, "highestCommittedUSN")) {
113 int ret = ldb_sequence_number(module->ldb, LDB_SEQ_HIGHEST_SEQ, &seq_num);
114 if (ret == LDB_SUCCESS) {
115 if (ldb_msg_add_fmt(msg, "highestCommittedUSN",
116 "%llu", (unsigned long long)seq_num) != 0) {
122 /* TODO: lots more dynamic attributes should be added here */
127 return LDB_ERR_OPERATIONS_ERROR;
131 handle search requests
134 struct rootdse_context {
135 struct ldb_module *module;
137 int (*up_callback)(struct ldb_context *, void *, struct ldb_reply *);
139 const char * const * attrs;
142 static int rootdse_callback(struct ldb_context *ldb, void *context, struct ldb_reply *ares)
144 struct rootdse_context *ac;
146 if (!context || !ares) {
147 ldb_set_errstring(ldb, "NULL Context or Result in callback");
151 ac = talloc_get_type(context, struct rootdse_context);
153 if (ares->type == LDB_REPLY_ENTRY) {
154 /* for each record returned post-process to add any dynamic
155 attributes that have been asked for */
156 if (rootdse_add_dynamic(ac->module, ares->message, ac->attrs) != LDB_SUCCESS) {
161 return ac->up_callback(ldb, ac->up_context, ares);
165 return LDB_ERR_OPERATIONS_ERROR;
168 static int rootdse_search(struct ldb_module *module, struct ldb_request *req)
170 struct rootdse_context *ac;
171 struct ldb_request *down_req;
174 /* see if its for the rootDSE */
175 if (req->op.search.scope != LDB_SCOPE_BASE ||
176 (req->op.search.base && ldb_dn_get_comp_num(req->op.search.base) != 0)) {
177 return ldb_next_request(module, req);
180 ac = talloc(req, struct rootdse_context);
182 return LDB_ERR_OPERATIONS_ERROR;
186 ac->up_context = req->context;
187 ac->up_callback = req->callback;
188 ac->attrs = req->op.search.attrs;
190 down_req = talloc_zero(req, struct ldb_request);
191 if (down_req == NULL) {
192 return LDB_ERR_OPERATIONS_ERROR;
195 down_req->operation = req->operation;
196 /* in our db we store the rootDSE with a DN of cn=rootDSE */
197 down_req->op.search.base = ldb_dn_explode(down_req, "cn=rootDSE");
198 down_req->op.search.scope = LDB_SCOPE_BASE;
199 down_req->op.search.tree = ldb_parse_tree(down_req, NULL);
200 if (down_req->op.search.base == NULL || down_req->op.search.tree == NULL) {
201 ldb_oom(module->ldb);
202 talloc_free(down_req);
203 return LDB_ERR_OPERATIONS_ERROR;
205 down_req->op.search.attrs = req->op.search.attrs;
206 down_req->controls = req->controls;
208 down_req->context = ac;
209 down_req->callback = rootdse_callback;
210 ldb_set_timeout_from_prev_req(module->ldb, req, down_req);
212 /* perform the search */
213 ret = ldb_next_request(module, down_req);
215 /* do not free down_req as the call results may be linked to it,
216 * it will be freed when the upper level request get freed */
217 if (ret == LDB_SUCCESS) {
218 req->handle = down_req->handle;
224 static int rootdse_register_control(struct ldb_module *module, struct ldb_request *req)
226 struct private_data *priv = talloc_get_type(module->private_data, struct private_data);
229 list = talloc_realloc(priv, priv->controls, char *, priv->num_controls + 1);
231 return LDB_ERR_OPERATIONS_ERROR;
234 list[priv->num_controls] = talloc_strdup(list, req->op.reg_control.oid);
235 if (!list[priv->num_controls]) {
236 return LDB_ERR_OPERATIONS_ERROR;
239 priv->num_controls += 1;
240 priv->controls = list;
245 static int rootdse_register_partition(struct ldb_module *module, struct ldb_request *req)
247 struct private_data *priv = talloc_get_type(module->private_data, struct private_data);
248 struct ldb_dn **list;
250 list = talloc_realloc(priv, priv->partitions, struct ldb_dn *, priv->num_partitions + 1);
252 return LDB_ERR_OPERATIONS_ERROR;
255 list[priv->num_partitions] = ldb_dn_copy(list, req->op.reg_partition.dn);
256 if (!list[priv->num_partitions]) {
257 return LDB_ERR_OPERATIONS_ERROR;
260 priv->num_partitions += 1;
261 priv->partitions = list;
267 static int rootdse_request(struct ldb_module *module, struct ldb_request *req)
269 switch (req->operation) {
271 case LDB_REQ_REGISTER_CONTROL:
272 return rootdse_register_control(module, req);
273 case LDB_REQ_REGISTER_PARTITION:
274 return rootdse_register_partition(module, req);
279 return ldb_next_request(module, req);
282 static int rootdse_init(struct ldb_module *module)
284 struct private_data *data;
286 data = talloc(module, struct private_data);
291 data->num_controls = 0;
292 data->controls = NULL;
293 data->num_partitions = 0;
294 data->partitions = NULL;
295 module->private_data = data;
297 return ldb_next_init(module);
300 static const struct ldb_module_ops rootdse_ops = {
302 .init_context = rootdse_init,
303 .search = rootdse_search,
304 .request = rootdse_request
307 int rootdse_module_init(void)
309 return ldb_register_module(&rootdse_ops);