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d15c345f PM |
1 | /* |
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 | ||
7a0e1d60 PM |
35 | #include <linux/types.h> |
36 | #include <linux/rcupdate.h> | |
37 | #include <linux/list.h> | |
38 | ||
d15c345f PM |
39 | /* 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 */ | |
44 | struct 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 */ | |
57 | int netlbl_domhsh_init(u32 size); | |
58 | ||
59 | /* Manipulate the domain hash table */ | |
95d4e6be PM |
60 | int netlbl_domhsh_add(struct netlbl_dom_map *entry, |
61 | struct netlbl_audit *audit_info); | |
62 | int netlbl_domhsh_add_default(struct netlbl_dom_map *entry, | |
63 | struct netlbl_audit *audit_info); | |
b1edeb10 PM |
64 | int netlbl_domhsh_remove_entry(struct netlbl_dom_map *entry, |
65 | struct netlbl_audit *audit_info); | |
eda61d32 | 66 | int netlbl_domhsh_remove(const char *domain, struct netlbl_audit *audit_info); |
95d4e6be | 67 | int netlbl_domhsh_remove_default(struct netlbl_audit *audit_info); |
d15c345f | 68 | struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain); |
fcd48280 PM |
69 | int netlbl_domhsh_walk(u32 *skip_bkt, |
70 | u32 *skip_chain, | |
71 | int (*callback) (struct netlbl_dom_map *entry, void *arg), | |
72 | void *cb_arg); | |
d15c345f PM |
73 | |
74 | #endif |