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558a38671a
removing a control means it can't be seen by any other modules, which is usually not what is wanted. Better to just mark it non-critical, which means anyone else who wants to look at it can, but if nobody does its not an error.
123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
/*
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ldb database library
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Copyright (C) Simo Sorce 2005
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Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 2009
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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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Name: ldb
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*
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* Component: ldb deleted objects control module
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*
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* Description: this module hides deleted objects, and returns them if the right control is there
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*
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* Author: Stefan Metzmacher
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*/
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#include "includes.h"
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#include "ldb/include/ldb_module.h"
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#include "dsdb/samdb/samdb.h"
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static int show_deleted_search(struct ldb_module *module, struct ldb_request *req)
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{
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struct ldb_context *ldb;
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struct ldb_control *control;
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struct ldb_request *down_req;
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struct ldb_parse_tree *new_tree = req->op.search.tree;
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int ret;
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ldb = ldb_module_get_ctx(module);
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/* check if there's a show deleted control */
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control = ldb_request_get_control(req, LDB_CONTROL_SHOW_DELETED_OID);
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if (! control) {
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/* FIXME: we could use a constant tree here once we
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are sure that no ldb modules modify trees
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in-situ */
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new_tree = talloc(req, struct ldb_parse_tree);
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if (!new_tree) {
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ldb_oom(ldb);
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return LDB_ERR_OPERATIONS_ERROR;
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}
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new_tree->operation = LDB_OP_AND;
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new_tree->u.list.num_elements = 2;
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new_tree->u.list.elements = talloc_array(new_tree, struct ldb_parse_tree *, 2);
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if (!new_tree->u.list.elements) {
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ldb_oom(ldb);
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return LDB_ERR_OPERATIONS_ERROR;
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}
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new_tree->u.list.elements[0] = talloc(new_tree->u.list.elements, struct ldb_parse_tree);
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new_tree->u.list.elements[0]->operation = LDB_OP_NOT;
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new_tree->u.list.elements[0]->u.isnot.child =
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talloc(new_tree->u.list.elements, struct ldb_parse_tree);
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if (!new_tree->u.list.elements[0]->u.isnot.child) {
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ldb_oom(ldb);
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return LDB_ERR_OPERATIONS_ERROR;
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}
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new_tree->u.list.elements[0]->u.isnot.child->operation = LDB_OP_EQUALITY;
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new_tree->u.list.elements[0]->u.isnot.child->u.equality.attr = "isDeleted";
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new_tree->u.list.elements[0]->u.isnot.child->u.equality.value = data_blob_string_const("TRUE");
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new_tree->u.list.elements[1] = req->op.search.tree;
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}
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ret = ldb_build_search_req_ex(&down_req, ldb, req,
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req->op.search.base,
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req->op.search.scope,
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new_tree,
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req->op.search.attrs,
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req->controls,
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req->context, req->callback,
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req);
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if (ret != LDB_SUCCESS) {
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return ret;
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}
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/* mark the control as done */
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if (control) {
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control->critical = 0;
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}
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/* perform the search */
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return ldb_next_request(module, down_req);
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}
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static int show_deleted_init(struct ldb_module *module)
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{
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struct ldb_context *ldb;
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int ret;
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ldb = ldb_module_get_ctx(module);
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ret = ldb_mod_register_control(module, LDB_CONTROL_SHOW_DELETED_OID);
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if (ret != LDB_SUCCESS) {
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ldb_debug(ldb, LDB_DEBUG_ERROR,
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"show_deleted: Unable to register control with rootdse!\n");
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return LDB_ERR_OPERATIONS_ERROR;
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}
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return ldb_next_init(module);
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}
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_PUBLIC_ const struct ldb_module_ops ldb_show_deleted_module_ops = {
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.name = "show_deleted",
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.search = show_deleted_search,
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.init_context = show_deleted_init
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};
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