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Paul Moored15c3452006-08-03 16:48:37 -07001/*
2 * NetLabel Domain Hash Table
3 *
4 * This file manages the domain hash table that NetLabel uses to determine
5 * which network labeling protocol to use for a given domain. The NetLabel
6 * system manages static and dynamic label mappings for network protocols such
7 * as CIPSO and RIPSO.
8 *
9 * Author: Paul Moore <paul.moore@hp.com>
10 *
11 */
12
13/*
14 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
24 * the GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 *
30 */
31
32#ifndef _NETLABEL_DOMAINHASH_H
33#define _NETLABEL_DOMAINHASH_H
34
Paul Moore7a0e1d62006-08-29 17:56:04 -070035#include <linux/types.h>
36#include <linux/rcupdate.h>
37#include <linux/list.h>
38
Paul Moored15c3452006-08-03 16:48:37 -070039/* Domain hash table size */
40/* XXX - currently this number is an uneducated guess */
41#define NETLBL_DOMHSH_BITSIZE 7
42
43/* Domain mapping definition struct */
44struct netlbl_dom_map {
45 char *domain;
46 u32 type;
47 union {
48 struct cipso_v4_doi *cipsov4;
49 } type_def;
50
51 u32 valid;
52 struct list_head list;
53 struct rcu_head rcu;
54};
55
56/* init function */
57int netlbl_domhsh_init(u32 size);
58
59/* Manipulate the domain hash table */
60int netlbl_domhsh_add(struct netlbl_dom_map *entry);
61int netlbl_domhsh_add_default(struct netlbl_dom_map *entry);
62int netlbl_domhsh_remove_default(void);
63struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain);
Paul Moorefcd48282006-09-25 15:56:09 -070064int netlbl_domhsh_walk(u32 *skip_bkt,
65 u32 *skip_chain,
66 int (*callback) (struct netlbl_dom_map *entry, void *arg),
67 void *cb_arg);
Paul Moored15c3452006-08-03 16:48:37 -070068
69#endif