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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 | ||
35 | /* Domain hash table size */ | |
36 | /* XXX - currently this number is an uneducated guess */ | |
37 | #define NETLBL_DOMHSH_BITSIZE 7 | |
38 | ||
39 | /* Domain mapping definition struct */ | |
40 | struct netlbl_dom_map { | |
41 | char *domain; | |
42 | u32 type; | |
43 | union { | |
44 | struct cipso_v4_doi *cipsov4; | |
45 | } type_def; | |
46 | ||
47 | u32 valid; | |
48 | struct list_head list; | |
49 | struct rcu_head rcu; | |
50 | }; | |
51 | ||
52 | /* init function */ | |
53 | int netlbl_domhsh_init(u32 size); | |
54 | ||
55 | /* Manipulate the domain hash table */ | |
56 | int netlbl_domhsh_add(struct netlbl_dom_map *entry); | |
57 | int netlbl_domhsh_add_default(struct netlbl_dom_map *entry); | |
58 | int netlbl_domhsh_remove_default(void); | |
59 | struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain); | |
60 | struct sk_buff *netlbl_domhsh_dump(size_t headroom); | |
61 | struct sk_buff *netlbl_domhsh_dump_default(size_t headroom); | |
62 | ||
63 | #endif |