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/*
Samba4 module loading module (for secrets)
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2009
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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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, see <http://www.gnu.org/licenses/>.
*/
/*
* Name: ldb
*
* Component: Samba4 module loading module (for secrets.ldb)
*
* Description: Implement a single 'module' in the secrets.ldb database
*
* This is to avoid forcing a reprovision of the ldb databases when we change the internal structure of the code
*
* Author: Andrew Bartlett
*/
#include "includes.h"
#include <ldb.h>
#include <ldb_errors.h>
#include <ldb_module.h>
#include "dsdb/samdb/ldb_modules/util.h"
#include "dsdb/samdb/samdb.h"
static int samba_secrets_init(struct ldb_module *module)
{
struct ldb_context *ldb = ldb_module_get_ctx(module);
int ret, len, i;
TALLOC_CTX *tmp_ctx = talloc_new(module);
struct ldb_module *backend_module, *module_chain;
const char **reverse_module_list;
/*
Add modules to the list to activate them by default
beware often order is important
The list is presented here as a set of declarations to show the
stack visually
*/
static const char *modules_list[] = {"update_keytab",
"secrets_tdb_sync",
"objectguid",
"rdn_name",
NULL };
if (!tmp_ctx) {
return ldb_oom(ldb);
}
/* Now prepare the module chain. Oddly, we must give it to ldb_load_modules_list in REVERSE */
for (len = 0; modules_list[len]; len++) { /* noop */};
reverse_module_list = talloc_array(tmp_ctx, const char *, len+1);
if (!reverse_module_list) {
talloc_free(tmp_ctx);
return ldb_oom(ldb);
}
for (i=0; i < len; i++) {
reverse_module_list[i] = modules_list[(len - 1) - i];
}
reverse_module_list[i] = NULL;
/* The backend (at least until the partitions module
* reconfigures things) is the next module in the currently
* loaded chain */
backend_module = ldb_module_next(module);
ret = ldb_module_load_list(ldb, reverse_module_list, backend_module, &module_chain);
if (ret != LDB_SUCCESS) {
talloc_free(tmp_ctx);
return ret;
}
talloc_free(tmp_ctx);
/* Set this as the 'next' module, so that we effectivly append it to module chain */
ldb_module_set_next(module, module_chain);
return ldb_next_init(module);
}
static const struct ldb_module_ops ldb_samba_secrets_module_ops = {
.name = "samba_secrets",
.init_context = samba_secrets_init,
};
int ldb_samba_secrets_module_init(const char *version)
{
LDB_MODULE_CHECK_VERSION(version);
return ldb_register_module(&ldb_samba_secrets_module_ops);
}
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