Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
[linux/fpc-iii.git] / net / netlabel / netlabel_domainhash.h
blob680caf4dff567f61ccaa41a70a9276101ac27fcd
1 /*
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
7 * as CIPSO and RIPSO.
9 * Author: Paul Moore <paul@paul-moore.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, see <http://www.gnu.org/licenses/>.
31 #ifndef _NETLABEL_DOMAINHASH_H
32 #define _NETLABEL_DOMAINHASH_H
34 #include <linux/types.h>
35 #include <linux/rcupdate.h>
36 #include <linux/list.h>
38 #include "netlabel_addrlist.h"
40 /* Domain hash table size */
41 /* XXX - currently this number is an uneducated guess */
42 #define NETLBL_DOMHSH_BITSIZE 7
44 /* Domain mapping definition structures */
45 struct netlbl_domaddr_map {
46 struct list_head list4;
47 struct list_head list6;
49 struct netlbl_dommap_def {
50 u32 type;
51 union {
52 struct netlbl_domaddr_map *addrsel;
53 struct cipso_v4_doi *cipso;
56 #define netlbl_domhsh_addr4_entry(iter) \
57 container_of(iter, struct netlbl_domaddr4_map, list)
58 struct netlbl_domaddr4_map {
59 struct netlbl_dommap_def def;
61 struct netlbl_af4list list;
63 #define netlbl_domhsh_addr6_entry(iter) \
64 container_of(iter, struct netlbl_domaddr6_map, list)
65 struct netlbl_domaddr6_map {
66 struct netlbl_dommap_def def;
68 struct netlbl_af6list list;
71 struct netlbl_dom_map {
72 char *domain;
73 struct netlbl_dommap_def def;
75 u32 valid;
76 struct list_head list;
77 struct rcu_head rcu;
80 /* init function */
81 int netlbl_domhsh_init(u32 size);
83 /* Manipulate the domain hash table */
84 int netlbl_domhsh_add(struct netlbl_dom_map *entry,
85 struct netlbl_audit *audit_info);
86 int netlbl_domhsh_add_default(struct netlbl_dom_map *entry,
87 struct netlbl_audit *audit_info);
88 int netlbl_domhsh_remove_entry(struct netlbl_dom_map *entry,
89 struct netlbl_audit *audit_info);
90 int netlbl_domhsh_remove_af4(const char *domain,
91 const struct in_addr *addr,
92 const struct in_addr *mask,
93 struct netlbl_audit *audit_info);
94 int netlbl_domhsh_remove(const char *domain, struct netlbl_audit *audit_info);
95 int netlbl_domhsh_remove_default(struct netlbl_audit *audit_info);
96 struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain);
97 struct netlbl_dommap_def *netlbl_domhsh_getentry_af4(const char *domain,
98 __be32 addr);
99 #if IS_ENABLED(CONFIG_IPV6)
100 struct netlbl_dommap_def *netlbl_domhsh_getentry_af6(const char *domain,
101 const struct in6_addr *addr);
102 #endif /* IPv6 */
104 int netlbl_domhsh_walk(u32 *skip_bkt,
105 u32 *skip_chain,
106 int (*callback) (struct netlbl_dom_map *entry, void *arg),
107 void *cb_arg);
109 #endif