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52a2356505
Applications that use LDB modules will now have to run ldb_global_init() before they can use LDB. The next step will be adding support for loading LDB modules from .so files. This will also allow us to use one LDB without difference between the standalone and the Samba-specific build
134 lines
3.3 KiB
C
134 lines
3.3 KiB
C
/*
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ldb database library
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Copyright (C) Simo Sorce 2004
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
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** NOTE! The following LGPL license applies to the ldb
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** library. This does NOT imply that all of Samba is released
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** under the LGPL
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* Name: ldb
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*
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* Component: ldb objectguid module
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*
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* Description: add a unique objectGUID onto every new record
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*
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* Author: Simo Sorce
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*/
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#include "includes.h"
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#include "ldb/include/ldb.h"
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#include "ldb/include/ldb_private.h"
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#include "librpc/gen_ndr/ndr_misc.h"
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static struct ldb_message_element *objectguid_find_attribute(const struct ldb_message *msg, const char *name)
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{
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int i;
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for (i = 0; i < msg->num_elements; i++) {
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if (ldb_attr_cmp(name, msg->elements[i].name) == 0) {
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return &msg->elements[i];
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}
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}
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return NULL;
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}
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/* add_record: add objectGUID attribute */
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static int objectguid_add(struct ldb_module *module, struct ldb_request *req)
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{
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const struct ldb_message *msg = req->op.add.message;
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struct ldb_val v;
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struct ldb_message *msg2;
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struct ldb_message_element *attribute;
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struct GUID guid;
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NTSTATUS nt_status;
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int ret, i;
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ldb_debug(module->ldb, LDB_DEBUG_TRACE, "objectguid_add_record\n");
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if (ldb_dn_is_special(msg->dn)) { /* do not manipulate our control entries */
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return ldb_next_request(module, req);
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}
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if ((attribute = objectguid_find_attribute(msg, "objectGUID")) != NULL ) {
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return ldb_next_request(module, req);
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}
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msg2 = talloc(module, struct ldb_message);
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if (!msg2) {
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return -1;
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}
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msg2->dn = msg->dn;
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msg2->num_elements = msg->num_elements;
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msg2->private_data = msg->private_data;
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msg2->elements = talloc_array(msg2, struct ldb_message_element, msg2->num_elements);
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for (i = 0; i < msg2->num_elements; i++) {
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msg2->elements[i] = msg->elements[i];
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}
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/* a new GUID */
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guid = GUID_random();
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nt_status = ndr_push_struct_blob(&v, msg2, &guid,
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(ndr_push_flags_fn_t)ndr_push_GUID);
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if (!NT_STATUS_IS_OK(nt_status)) {
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return -1;
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}
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ret = ldb_msg_add_value(msg2, "objectGUID", &v);
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if (ret) {
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return ret;
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}
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req->op.add.message = msg2;
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ret = ldb_next_request(module, req);
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req->op.add.message = msg;
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talloc_free(msg2);
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return ret;
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}
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static int objectguid_request(struct ldb_module *module, struct ldb_request *req)
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{
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switch (req->operation) {
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case LDB_REQ_ADD:
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return objectguid_add(module, req);
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default:
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return ldb_next_request(module, req);
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}
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}
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static const struct ldb_module_ops objectguid_ops = {
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.name = "objectguid",
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.request = objectguid_request
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};
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int objectguid_module_init(void)
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{
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return ldb_register_module(&objectguid_ops);
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}
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