2 Unix SMB/CIFS mplementation.
4 The module that handles the Domain Naming FSMO Role Owner
7 Copyright (C) Stefan Metzmacher 2007
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/>.
25 #include "ldb_module.h"
26 #include "dsdb/samdb/samdb.h"
27 #include "librpc/gen_ndr/ndr_misc.h"
28 #include "librpc/gen_ndr/ndr_drsuapi.h"
29 #include "librpc/gen_ndr/ndr_drsblobs.h"
30 #include "../lib/util/dlinklist.h"
31 #include "dsdb/samdb/ldb_modules/util.h"
33 static int naming_fsmo_init(struct ldb_module *module)
35 struct ldb_context *ldb;
37 struct ldb_dn *naming_dn;
38 struct dsdb_naming_fsmo *naming_fsmo;
39 struct ldb_result *naming_res;
41 static const char *naming_attrs[] = {
46 ldb = ldb_module_get_ctx(module);
48 mem_ctx = talloc_new(module);
53 naming_dn = samdb_partitions_dn(ldb, mem_ctx);
55 ldb_debug_set(ldb, LDB_DEBUG_FATAL,
56 "naming_fsmo_init: unable to determine partitions dn");
58 return LDB_ERR_OPERATIONS_ERROR;
61 naming_fsmo = talloc_zero(mem_ctx, struct dsdb_naming_fsmo);
65 ldb_module_set_private(module, naming_fsmo);
67 ret = dsdb_module_search_dn(module, mem_ctx, &naming_res,
70 DSDB_FLAG_NEXT_MODULE);
71 if (ret == LDB_ERR_NO_SUCH_OBJECT) {
72 ldb_debug(ldb, LDB_DEBUG_TRACE,
73 "naming_fsmo_init: no partitions dn present: (skip loading of naming contexts details)");
75 return ldb_next_init(module);
78 naming_fsmo->master_dn = ldb_msg_find_attr_as_dn(ldb, naming_fsmo, naming_res->msgs[0], "fSMORoleOwner");
79 if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), naming_fsmo->master_dn) == 0) {
80 naming_fsmo->we_are_master = true;
82 naming_fsmo->we_are_master = false;
85 if (ldb_set_opaque(ldb, "dsdb_naming_fsmo", naming_fsmo) != LDB_SUCCESS) {
89 talloc_steal(module, naming_fsmo);
91 ldb_debug(ldb, LDB_DEBUG_TRACE,
92 "naming_fsmo_init: we are master: %s\n",
93 (naming_fsmo->we_are_master?"yes":"no"));
96 return ldb_next_init(module);
99 static const struct ldb_module_ops ldb_naming_fsmo_module_ops = {
100 .name = "naming_fsmo",
101 .init_context = naming_fsmo_init
104 int ldb_naming_fsmo_module_init(const char *version)
106 LDB_MODULE_CHECK_VERSION(version);
107 return ldb_register_module(&ldb_naming_fsmo_module_ops);