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Copyright (C) Stefan Metzmacher 2006
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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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* Component: ldb winsdb module
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* Description: verify winsdb records before they're written to disk
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* Author: Stefan Metzmacher
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#include "lib/events/events.h"
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#include "nbt_server/nbt_server.h"
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#include "nbt_server/wins/winsdb.h"
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#include "lib/ldb/include/ldb_module.h"
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#include "system/network.h"
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#include "lib/socket/netif.h"
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#include "param/param.h"
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static int wins_ldb_verify(struct ldb_module *module, struct ldb_request *req)
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struct ldb_context *ldb = ldb_module_get_ctx(module);
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struct winsdb_handle *h = talloc_get_type(ldb_get_opaque(ldb, "winsdb_handle"),
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struct winsdb_handle);
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const struct ldb_message *msg;
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switch (req->operation) {
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msg = req->op.add.message;
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msg = req->op.mod.message;
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return ldb_next_request(module, req);
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/* do not manipulate our control entries */
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if (ldb_dn_is_special(msg->dn)) {
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return ldb_next_request(module, req);
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ldb_debug_set(ldb, LDB_DEBUG_FATAL, "%s", "WINS_LDB: INTERNAL ERROR: no winsdb_handle present!");
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case WINSDB_HANDLE_CALLER_NBTD:
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case WINSDB_HANDLE_CALLER_WREPL:
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/* we trust our nbt and wrepl code ... */
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return ldb_next_request(module, req);
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case WINSDB_HANDLE_CALLER_ADMIN:
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ldb_debug(ldb, LDB_DEBUG_WARNING, "%s\n", "WINS_LDB: TODO verify add/modify for WINSDB_HANDLE_CALLER_ADMIN");
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return ldb_next_request(module, req);
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static int wins_ldb_init(struct ldb_module *module)
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struct ldb_context *ldb = ldb_module_get_ctx(module);
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struct winsdb_handle *h;
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struct loadparm_context *lp_ctx = ldb_get_opaque(ldb, "loadparm");
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ldb_module_set_private(module, NULL);
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owner = lp_parm_string(lp_ctx, NULL, "winsdb", "local_owner");
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struct interface *ifaces;
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load_interfaces(module, lp_interfaces(lp_ctx), &ifaces);
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owner = iface_n_ip(ifaces, 0);
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h = talloc_zero(module, struct winsdb_handle);
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h->caller = WINSDB_HANDLE_CALLER_ADMIN;
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h->local_owner = talloc_strdup(h, owner);
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if (!h->local_owner) goto failed;
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return ldb_set_opaque(ldb, "winsdb_handle", h);
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return LDB_ERR_OTHER;
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_PUBLIC_ const struct ldb_module_ops ldb_wins_ldb_module_ops = {
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.add = wins_ldb_verify,
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.modify = wins_ldb_verify,
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.init_context = wins_ldb_init