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/*
ldb database library
Copyright (C) Simo Sorce 2004-2006
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
Copyright (C) Andrew Tridgell 2005
Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
** NOTE! The following LGPL license applies to the ldb
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
/*
* Name: ldb
*
* Component: ldb instancetype module
*
* Description: add an instanceType onto every new record
*
* Author: Andrew Bartlett
*/
#include "includes.h"
#include "ldb/include/ldb_includes.h"
#include "librpc/gen_ndr/ndr_misc.h"
#include "param/param.h"
#include "dsdb/samdb/samdb.h"
#include "dsdb/common/flags.h"
/* add_record: add instancetype attribute */
static int instancetype_add(struct ldb_module *module, struct ldb_request *req)
{
struct ldb_request *down_req;
struct ldb_message *msg;
uint32_t instance_type;
int ret;
const struct ldb_control *partition_ctrl;
const struct dsdb_control_current_partition *partition;
ldb_debug(module->ldb, LDB_DEBUG_TRACE, "instancetype_add_record\n");
/* do not manipulate our control entries */
if (ldb_dn_is_special(req->op.add.message->dn)) {
return ldb_next_request(module, req);
}
partition_ctrl = ldb_request_get_control(req, DSDB_CONTROL_CURRENT_PARTITION_OID);
if (!partition_ctrl) {
ldb_debug_set(module->ldb, LDB_DEBUG_FATAL,
"instancetype_add: no current partition control found");
return LDB_ERR_CONSTRAINT_VIOLATION;
}
partition = talloc_get_type(partition_ctrl->data,
struct dsdb_control_current_partition);
SMB_ASSERT(partition && partition->version == DSDB_CONTROL_CURRENT_PARTITION_VERSION);
down_req = talloc(req, struct ldb_request);
if (down_req == NULL) {
ldb_oom(module->ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
*down_req = *req;
/* we have to copy the message as the caller might have it as a const */
down_req->op.add.message = msg = ldb_msg_copy_shallow(down_req, req->op.add.message);
if (msg == NULL) {
talloc_free(down_req);
ldb_oom(module->ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
/*
* TODO: calculate correct instance type
*/
instance_type = INSTANCE_TYPE_WRITE;
if (ldb_dn_compare(partition->dn, msg->dn) == 0) {
instance_type |= INSTANCE_TYPE_IS_NC_HEAD;
if (ldb_dn_compare(msg->dn, samdb_base_dn(module->ldb)) != 0) {
instance_type |= INSTANCE_TYPE_NC_ABOVE;
}
}
ret = ldb_msg_add_fmt(msg, "instanceType", "%u", instance_type);
if (ret != LDB_SUCCESS) {
talloc_free(down_req);
ldb_oom(module->ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
ldb_set_timeout_from_prev_req(module->ldb, req, down_req);
/* go on with the call chain */
ret = ldb_next_request(module, down_req);
/* do not free down_req as the call results may be linked to it,
* it will be freed when the upper level request get freed */
if (ret == LDB_SUCCESS) {
req->handle = down_req->handle;
}
return ret;
}
const struct ldb_module_ops ldb_instancetype_module_ops = {
.name = "instancetype",
.add = instancetype_add,
};
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