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/*
ldb database library
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006-2007
Copyright (C) Andrew Tridgell <tridge@samba.org> 2009
Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
Copyright (C) Simo Sorce <idra@samba.org> 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 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: ldb subtree delete (prevention) module
*
* Description: Prevent deletion of a subtree in LDB
*
* Author: Andrew Bartlett
*/
#include "includes.h"
#include <ldb.h>
#include <ldb_module.h>
#include "dsdb/samdb/ldb_modules/util.h"
static int subtree_delete(struct ldb_module *module, struct ldb_request *req)
{
static const char * const attrs[] = { NULL };
int ret;
struct ldb_result *res = NULL;
if (ldb_dn_is_special(req->op.del.dn)) {
/* do not manipulate our control entries */
return ldb_next_request(module, req);
}
/* see if we have any children */
ret = dsdb_module_search(module, req, &res, req->op.del.dn,
LDB_SCOPE_ONELEVEL, attrs,
DSDB_SEARCH_SHOW_DELETED, "(objectClass=*)");
if (ret != LDB_SUCCESS) {
talloc_free(res);
return ret;
}
if (res->count > 0) {
ldb_asprintf_errstring(ldb_module_get_ctx(module),
"Cannot delete %s, not a leaf node "
"(has %d children)\n",
ldb_dn_get_linearized(req->op.del.dn),
res->count);
talloc_free(res);
return LDB_ERR_NOT_ALLOWED_ON_NON_LEAF;
}
talloc_free(res);
return ldb_next_request(module, req);
}
_PUBLIC_ const struct ldb_module_ops ldb_subtree_delete_module_ops = {
.name = "subtree_delete",
.del = subtree_delete,
};
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