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308f9cf822
for the schema, domain naming and pdc fsmo roles infrastructure and rid manager will be added later, when we have module for them metze
123 lines
3.5 KiB
C
123 lines
3.5 KiB
C
/*
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Unix SMB/CIFS mplementation.
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The module that handles the PDC FSMO Role Owner checkings
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Copyright (C) Stefan Metzmacher 2007
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#include "lib/ldb/include/ldb.h"
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#include "lib/ldb/include/ldb_errors.h"
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#include "lib/ldb/include/ldb_private.h"
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#include "dsdb/samdb/samdb.h"
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#include "librpc/gen_ndr/ndr_misc.h"
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#include "librpc/gen_ndr/ndr_drsuapi.h"
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#include "librpc/gen_ndr/ndr_drsblobs.h"
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#include "lib/util/dlinklist.h"
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static int pdc_fsmo_init(struct ldb_module *module)
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{
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TALLOC_CTX *mem_ctx;
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struct ldb_dn *pdc_dn;
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struct dsdb_pdc_fsmo *pdc_fsmo;
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struct ldb_result *pdc_res;
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int ret;
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static const char *pdc_attrs[] = {
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"fSMORoleOwner",
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NULL
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};
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mem_ctx = talloc_new(module);
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if (!mem_ctx) {
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ldb_oom(module->ldb);
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return LDB_ERR_OPERATIONS_ERROR;
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}
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pdc_dn = samdb_base_dn(module->ldb);
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if (!pdc_dn) {
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ldb_debug(module->ldb, LDB_DEBUG_WARNING,
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"pdc_fsmo_init: no domain dn present: (skip loading of domain details)\n");
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talloc_free(mem_ctx);
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return ldb_next_init(module);
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}
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pdc_fsmo = talloc_zero(mem_ctx, struct dsdb_pdc_fsmo);
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if (!pdc_fsmo) {
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ldb_oom(module->ldb);
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return LDB_ERR_OPERATIONS_ERROR;
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}
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module->private_data = pdc_fsmo;
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ret = ldb_search(module->ldb, pdc_dn,
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LDB_SCOPE_BASE,
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NULL, pdc_attrs,
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&pdc_res);
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if (ret != LDB_SUCCESS) {
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ldb_debug_set(module->ldb, LDB_DEBUG_FATAL,
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"pdc_fsmo_init: failed to search the domain object: %d:%s\n",
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ret, ldb_strerror(ret));
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talloc_free(mem_ctx);
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return ret;
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}
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talloc_steal(mem_ctx, pdc_res);
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if (pdc_res->count == 0) {
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ldb_debug(module->ldb, LDB_DEBUG_WARNING,
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"pdc_fsmo_init: no domain object present: (skip loading of domain details)\n");
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talloc_free(mem_ctx);
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return ldb_next_init(module);
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} else if (pdc_res->count > 1) {
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ldb_debug_set(module->ldb, LDB_DEBUG_FATAL,
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"pdc_fsmo_init: [%u] domain objects found on a base search\n",
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pdc_res->count);
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talloc_free(mem_ctx);
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return LDB_ERR_CONSTRAINT_VIOLATION;
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}
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pdc_fsmo->master_dn = ldb_msg_find_attr_as_dn(module->ldb, mem_ctx, pdc_res->msgs[0], "fSMORoleOwner");
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if (ldb_dn_compare(samdb_ntds_settings_dn(module->ldb), pdc_fsmo->master_dn) == 0) {
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pdc_fsmo->we_are_master = true;
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} else {
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pdc_fsmo->we_are_master = false;
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}
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if (ldb_set_opaque(module->ldb, "dsdb_pdc_fsmo", pdc_fsmo) != LDB_SUCCESS) {
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ldb_oom(module->ldb);
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return LDB_ERR_OPERATIONS_ERROR;
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}
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talloc_steal(module, pdc_fsmo);
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ldb_debug(module->ldb, LDB_DEBUG_TRACE,
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"pdc_fsmo_init: we are master: %s\n",
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(pdc_fsmo->we_are_master?"yes":"no"));
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talloc_free(mem_ctx);
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return ldb_next_init(module);
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}
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static const struct ldb_module_ops pdc_fsmo_ops = {
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.name = "pdc_fsmo",
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.init_context = pdc_fsmo_init
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};
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int pdc_fsmo_module_init(void)
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{
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return ldb_register_module(&pdc_fsmo_ops);
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}
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