rootDSE ldb module
Copyright (C) Andrew Tridgell 2005
- Copyright (C) Simo Sorce 2005
+ Copyright (C) Simo Sorce 2005-2008
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "lib/ldb/include/ldb.h"
-#include "lib/ldb/include/ldb_errors.h"
-#include "lib/ldb/include/ldb_private.h"
+#include "lib/ldb/include/ldb_module.h"
#include "system/time.h"
+#include "dsdb/samdb/samdb.h"
+#include "version.h"
struct private_data {
int num_controls;
ldb_attr_in_list(attrs, "*");
}
+static int do_attribute_explicit(const char * const *attrs, const char *name)
+{
+ return attrs != NULL && ldb_attr_in_list(attrs, name);
+}
+
/*
add dynamically generated attributes to rootDSE result
*/
static int rootdse_add_dynamic(struct ldb_module *module, struct ldb_message *msg, const char * const *attrs)
{
- struct private_data *priv = talloc_get_type(module->private_data, struct private_data);
+ struct ldb_context *ldb;
+ struct private_data *priv = talloc_get_type(ldb_module_get_private(module), struct private_data);
char **server_sasl;
+ const struct dsdb_schema *schema;
- msg->dn = ldb_dn_explode(msg, "");
+ ldb = ldb_module_get_ctx(module);
+ schema = dsdb_get_schema(ldb);
+
+ msg->dn = ldb_dn_new(msg, ldb, NULL);
/* don't return the distinduishedName, cn and name attributes */
ldb_msg_remove_attr(msg, "distinguishedName");
for (i = 0; i < priv->num_partitions; i++) {
struct ldb_dn *dn = priv->partitions[i];
if (ldb_msg_add_steal_string(msg, "namingContexts",
- ldb_dn_linearize(msg, dn)) != 0) {
+ ldb_dn_alloc_linearized(msg, dn)) != 0) {
goto failed;
}
}
}
- server_sasl = talloc_get_type(ldb_get_opaque(module->ldb, "supportedSASLMechanims"),
+ server_sasl = talloc_get_type(ldb_get_opaque(ldb, "supportedSASLMechanims"),
char *);
if (server_sasl && do_attribute(attrs, "supportedSASLMechanisms")) {
int i;
if (do_attribute(attrs, "highestCommittedUSN")) {
uint64_t seq_num;
- int ret = ldb_sequence_number(module->ldb, LDB_SEQ_HIGHEST_SEQ, &seq_num);
+ int ret = ldb_sequence_number(ldb, LDB_SEQ_HIGHEST_SEQ, &seq_num);
if (ret == LDB_SUCCESS) {
if (ldb_msg_add_fmt(msg, "highestCommittedUSN",
"%llu", (unsigned long long)seq_num) != 0) {
}
}
+ if (schema && do_attribute_explicit(attrs, "dsSchemaAttrCount")) {
+ struct dsdb_attribute *cur;
+ uint32_t n = 0;
+
+ for (cur = schema->attributes; cur; cur = cur->next) {
+ n++;
+ }
+
+ if (ldb_msg_add_fmt(msg, "dsSchemaAttrCount",
+ "%u", n) != 0) {
+ goto failed;
+ }
+ }
+
+ if (schema && do_attribute_explicit(attrs, "dsSchemaClassCount")) {
+ struct dsdb_class *cur;
+ uint32_t n = 0;
+
+ for (cur = schema->classes; cur; cur = cur->next) {
+ n++;
+ }
+
+ if (ldb_msg_add_fmt(msg, "dsSchemaClassCount",
+ "%u", n) != 0) {
+ goto failed;
+ }
+ }
+
+ if (schema && do_attribute_explicit(attrs, "dsSchemaPrefixCount")) {
+ if (ldb_msg_add_fmt(msg, "dsSchemaPrefixCount",
+ "%u", schema->num_prefixes) != 0) {
+ goto failed;
+ }
+ }
+
+ if (do_attribute_explicit(attrs, "validFSMOs")) {
+ const struct dsdb_naming_fsmo *naming_fsmo;
+ const struct dsdb_pdc_fsmo *pdc_fsmo;
+ const char *dn_str;
+
+ if (schema && schema->fsmo.we_are_master) {
+ dn_str = ldb_dn_get_linearized(samdb_schema_dn(ldb));
+ if (dn_str && dn_str[0]) {
+ if (ldb_msg_add_fmt(msg, "validFSMOs", "%s", dn_str) != 0) {
+ goto failed;
+ }
+ }
+ }
+
+ naming_fsmo = talloc_get_type(ldb_get_opaque(ldb, "dsdb_naming_fsmo"),
+ struct dsdb_naming_fsmo);
+ if (naming_fsmo && naming_fsmo->we_are_master) {
+ dn_str = ldb_dn_get_linearized(samdb_partitions_dn(ldb, msg));
+ if (dn_str && dn_str[0]) {
+ if (ldb_msg_add_fmt(msg, "validFSMOs", "%s", dn_str) != 0) {
+ goto failed;
+ }
+ }
+ }
+
+ pdc_fsmo = talloc_get_type(ldb_get_opaque(ldb, "dsdb_pdc_fsmo"),
+ struct dsdb_pdc_fsmo);
+ if (pdc_fsmo && pdc_fsmo->we_are_master) {
+ dn_str = ldb_dn_get_linearized(samdb_base_dn(ldb));
+ if (dn_str && dn_str[0]) {
+ if (ldb_msg_add_fmt(msg, "validFSMOs", "%s", dn_str) != 0) {
+ goto failed;
+ }
+ }
+ }
+ }
+
+ if (schema && do_attribute_explicit(attrs, "vendorVersion")) {
+ if (ldb_msg_add_fmt(msg, "vendorVersion",
+ "%s", SAMBA_VERSION_STRING) != 0) {
+ goto failed;
+ }
+ }
+
/* TODO: lots more dynamic attributes should be added here */
return LDB_SUCCESS;
struct rootdse_context {
struct ldb_module *module;
- void *up_context;
- int (*up_callback)(struct ldb_context *, void *, struct ldb_reply *);
-
- const char * const * attrs;
+ struct ldb_request *req;
};
-static int rootdse_callback(struct ldb_context *ldb, void *context, struct ldb_reply *ares)
+static struct rootdse_context *rootdse_init_context(struct ldb_module *module,
+ struct ldb_request *req)
{
+ struct ldb_context *ldb;
struct rootdse_context *ac;
- if (!context || !ares) {
- ldb_set_errstring(ldb, "NULL Context or Result in callback");
- goto error;
+ ldb = ldb_module_get_ctx(module);
+
+ ac = talloc_zero(req, struct rootdse_context);
+ if (ac == NULL) {
+ ldb_set_errstring(ldb, "Out of Memory");
+ return NULL;
}
- ac = talloc_get_type(context, struct rootdse_context);
+ ac->module = module;
+ ac->req = req;
+
+ return ac;
+}
+
+static int rootdse_callback(struct ldb_request *req, struct ldb_reply *ares)
+{
+ struct rootdse_context *ac;
+ int ret;
+
+ ac = talloc_get_type(req->context, struct rootdse_context);
- if (ares->type == LDB_REPLY_ENTRY) {
+ if (!ares) {
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
+ }
+ if (ares->error != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, ares->controls,
+ ares->response, ares->error);
+ }
+
+ switch (ares->type) {
+ case LDB_REPLY_ENTRY:
/*
* if the client explicit asks for the 'netlogon' attribute
* the reply_entry needs to be skipped
*/
- if (ac->attrs && ldb_attr_in_list(ac->attrs, "netlogon")) {
+ if (ac->req->op.search.attrs &&
+ ldb_attr_in_list(ac->req->op.search.attrs, "netlogon")) {
talloc_free(ares);
return LDB_SUCCESS;
}
/* for each record returned post-process to add any dynamic
attributes that have been asked for */
- if (rootdse_add_dynamic(ac->module, ares->message, ac->attrs) != LDB_SUCCESS) {
- goto error;
+ ret = rootdse_add_dynamic(ac->module, ares->message,
+ ac->req->op.search.attrs);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(ares);
+ return ldb_module_done(ac->req, NULL, NULL, ret);
}
- }
- return ac->up_callback(ldb, ac->up_context, ares);
+ return ldb_module_send_entry(ac->req, ares->message, ares->controls);
+
+ case LDB_REPLY_REFERRAL:
+ /* should we allow the backend to return referrals in this case
+ * ?? */
+ break;
+
+ case LDB_REPLY_DONE:
+ return ldb_module_done(ac->req, ares->controls,
+ ares->response, ares->error);
+ }
-error:
talloc_free(ares);
- return LDB_ERR_OPERATIONS_ERROR;
+ return LDB_SUCCESS;
}
static int rootdse_search(struct ldb_module *module, struct ldb_request *req)
{
+ struct ldb_context *ldb;
struct rootdse_context *ac;
struct ldb_request *down_req;
int ret;
- /* see if its for the rootDSE */
- if (req->op.search.scope != LDB_SCOPE_BASE ||
- (req->op.search.base && ldb_dn_get_comp_num(req->op.search.base) != 0)) {
+ ldb = ldb_module_get_ctx(module);
+
+ /* see if its for the rootDSE - only a base search on the "" DN qualifies */
+ if (!(req->op.search.scope == LDB_SCOPE_BASE && ldb_dn_is_null(req->op.search.base))) {
+ /* Otherwise, pass down to the rest of the stack */
return ldb_next_request(module, req);
}
- ac = talloc(req, struct rootdse_context);
+ ac = rootdse_init_context(module, req);
if (ac == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
- ac->module = module;
- ac->up_context = req->context;
- ac->up_callback = req->callback;
- ac->attrs = req->op.search.attrs;
-
- down_req = talloc_zero(req, struct ldb_request);
- if (down_req == NULL) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- down_req->operation = req->operation;
- /* in our db we store the rootDSE with a DN of cn=rootDSE */
- down_req->op.search.base = ldb_dn_explode(down_req, "cn=rootDSE");
- down_req->op.search.scope = LDB_SCOPE_BASE;
- down_req->op.search.tree = ldb_parse_tree(down_req, NULL);
- if (down_req->op.search.base == NULL || down_req->op.search.tree == NULL) {
- ldb_oom(module->ldb);
- talloc_free(down_req);
- return LDB_ERR_OPERATIONS_ERROR;
+ /* in our db we store the rootDSE with a DN of @ROOTDSE */
+ ret = ldb_build_search_req(&down_req, ldb, ac,
+ ldb_dn_new(ac, ldb, "@ROOTDSE"),
+ LDB_SCOPE_BASE,
+ NULL,
+ req->op.search.attrs,
+ NULL,/* for now skip the controls from the client */
+ ac, rootdse_callback,
+ req);
+ if (ret != LDB_SUCCESS) {
+ return ret;
}
- down_req->op.search.attrs = req->op.search.attrs;
- down_req->controls = req->controls;
- down_req->context = ac;
- down_req->callback = rootdse_callback;
- ldb_set_timeout_from_prev_req(module->ldb, req, down_req);
-
- /* perform the search */
- ret = ldb_next_request(module, down_req);
-
- /* do not free down_req as the call results may be linked to it,
- * it will be freed when the upper level request get freed */
- if (ret == LDB_SUCCESS) {
- req->handle = down_req->handle;
- }
-
- return ret;
+ return ldb_next_request(module, down_req);
}
static int rootdse_register_control(struct ldb_module *module, struct ldb_request *req)
{
- struct private_data *priv = talloc_get_type(module->private_data, struct private_data);
+ struct private_data *priv = talloc_get_type(ldb_module_get_private(module), struct private_data);
char **list;
list = talloc_realloc(priv, priv->controls, char *, priv->num_controls + 1);
priv->num_controls += 1;
priv->controls = list;
- return LDB_SUCCESS;
+ return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
}
-
+
static int rootdse_register_partition(struct ldb_module *module, struct ldb_request *req)
{
- struct private_data *priv = talloc_get_type(module->private_data, struct private_data);
+ struct private_data *priv = talloc_get_type(ldb_module_get_private(module), struct private_data);
struct ldb_dn **list;
list = talloc_realloc(priv, priv->partitions, struct ldb_dn *, priv->num_partitions + 1);
priv->num_partitions += 1;
priv->partitions = list;
- return LDB_SUCCESS;
+ return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
}
-
+
static int rootdse_request(struct ldb_module *module, struct ldb_request *req)
{
static int rootdse_init(struct ldb_module *module)
{
+ struct ldb_context *ldb;
struct private_data *data;
+ ldb = ldb_module_get_ctx(module);
+
data = talloc(module, struct private_data);
if (data == NULL) {
return -1;
data->controls = NULL;
data->num_partitions = 0;
data->partitions = NULL;
- module->private_data = data;
+ ldb_module_set_private(module, data);
+
+ ldb_set_default_dns(ldb);
return ldb_next_init(module);
}
-static const struct ldb_module_ops rootdse_ops = {
- .name = "rootdse",
- .init_context = rootdse_init,
- .search = rootdse_search,
- .request = rootdse_request
-};
-
-int rootdse_module_init(void)
+static int rootdse_modify(struct ldb_module *module, struct ldb_request *req)
{
- return ldb_register_module(&rootdse_ops);
+ struct ldb_context *ldb;
+ struct ldb_result *ext_res;
+ int ret;
+ struct ldb_dn *schema_dn;
+ struct ldb_message_element *schemaUpdateNowAttr;
+
+ /*
+ If dn is not "" we should let it pass through
+ */
+ if (!ldb_dn_is_null(req->op.mod.message->dn)) {
+ return ldb_next_request(module, req);
+ }
+
+ ldb = ldb_module_get_ctx(module);
+
+ /*
+ dn is empty so check for schemaUpdateNow attribute
+ "The type of modification and values specified in the LDAP modify operation do not matter." MSDN
+ */
+ schemaUpdateNowAttr = ldb_msg_find_element(req->op.mod.message, "schemaUpdateNow");
+ if (!schemaUpdateNowAttr) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ schema_dn = samdb_schema_dn(ldb);
+ if (!schema_dn) {
+ ldb_reset_err_string(ldb);
+ ldb_debug(ldb, LDB_DEBUG_WARNING,
+ "rootdse_modify: no schema dn present: (skip ldb_extended call)\n");
+ return ldb_next_request(module, req);
+ }
+
+ ret = ldb_extended(ldb, DSDB_EXTENDED_SCHEMA_UPDATE_NOW_OID, schema_dn, &ext_res);
+ if (ret != LDB_SUCCESS) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ talloc_free(ext_res);
+ return ldb_request_done(req, ret);
}
+_PUBLIC_ const struct ldb_module_ops ldb_rootdse_module_ops = {
+ .name = "rootdse",
+ .init_context = rootdse_init,
+ .search = rootdse_search,
+ .request = rootdse_request,
+ .modify = rootdse_modify
+};
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