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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - net/netlabel/netlabel_domainhash.h
2 * NetLabel Domain Hash Table
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
9 * Author: Paul Moore <paul.moore@hp.com>
14 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008
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.
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.
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
32 #ifndef _NETLABEL_DOMAINHASH_H
33 #define _NETLABEL_DOMAINHASH_H
35 #include <linux/types.h>
36 #include <linux/rcupdate.h>
37 #include <linux/list.h>
39 #include "netlabel_addrlist.h"
41 /* Domain hash table size */
42 /* XXX - currently this number is an uneducated guess */
43 #define NETLBL_DOMHSH_BITSIZE 7
45 /* Domain mapping definition structures */
46 #define netlbl_domhsh_addr4_entry(iter) \
47 container_of(iter, struct netlbl_domaddr4_map, list)
48 struct netlbl_domaddr4_map
{
51 struct cipso_v4_doi
*cipsov4
;
54 struct netlbl_af4list list
;
56 #define netlbl_domhsh_addr6_entry(iter) \
57 container_of(iter, struct netlbl_domaddr6_map, list)
58 struct netlbl_domaddr6_map
{
61 /* NOTE: no 'type_def' union needed at present since we don't currently
62 * support any IPv6 labeling protocols */
64 struct netlbl_af6list list
;
66 struct netlbl_domaddr_map
{
67 struct list_head list4
;
68 struct list_head list6
;
70 struct netlbl_dom_map
{
74 struct cipso_v4_doi
*cipsov4
;
75 struct netlbl_domaddr_map
*addrsel
;
79 struct list_head list
;
84 int netlbl_domhsh_init(u32 size
);
86 /* Manipulate the domain hash table */
87 int netlbl_domhsh_add(struct netlbl_dom_map
*entry
,
88 struct netlbl_audit
*audit_info
);
89 int netlbl_domhsh_add_default(struct netlbl_dom_map
*entry
,
90 struct netlbl_audit
*audit_info
);
91 int netlbl_domhsh_remove_entry(struct netlbl_dom_map
*entry
,
92 struct netlbl_audit
*audit_info
);
93 int netlbl_domhsh_remove(const char *domain
, struct netlbl_audit
*audit_info
);
94 int netlbl_domhsh_remove_default(struct netlbl_audit
*audit_info
);
95 struct netlbl_dom_map
*netlbl_domhsh_getentry(const char *domain
);
96 struct netlbl_domaddr4_map
*netlbl_domhsh_getentry_af4(const char *domain
,
98 int netlbl_domhsh_walk(u32
*skip_bkt
,
100 int (*callback
) (struct netlbl_dom_map
*entry
, void *arg
),
103 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
104 struct netlbl_domaddr6_map
*netlbl_domhsh_getentry_af6(const char *domain
,
105 const struct in6_addr
*addr
);