1 /* SPDX-License-Identifier: GPL-2.0-or-later * <<
2 /* 1 /*
3 * CALIPSO - Common Architecture Label IPv6 Se 2 * CALIPSO - Common Architecture Label IPv6 Security Option
4 * 3 *
5 * This is an implementation of the CALIPSO pr 4 * This is an implementation of the CALIPSO protocol as specified in
6 * RFC 5570. 5 * RFC 5570.
7 * 6 *
8 * Authors: Paul Moore <paul@paul-moore.com> 7 * Authors: Paul Moore <paul@paul-moore.com>
9 * Huw Davies <huw@codeweavers.com> 8 * Huw Davies <huw@codeweavers.com>
>> 9 *
10 */ 10 */
11 11
12 /* 12 /*
13 * (c) Copyright Hewlett-Packard Development C 13 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
14 * (c) Copyright Huw Davies <huw@codeweavers.c 14 * (c) Copyright Huw Davies <huw@codeweavers.com>, 2015
>> 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, see <http://www.gnu.org/licenses/>.
>> 28 *
15 */ 29 */
16 30
17 #ifndef _CALIPSO_H 31 #ifndef _CALIPSO_H
18 #define _CALIPSO_H 32 #define _CALIPSO_H
19 33
20 #include <linux/types.h> 34 #include <linux/types.h>
21 #include <linux/rcupdate.h> 35 #include <linux/rcupdate.h>
22 #include <linux/list.h> 36 #include <linux/list.h>
23 #include <linux/net.h> 37 #include <linux/net.h>
24 #include <linux/skbuff.h> 38 #include <linux/skbuff.h>
25 #include <net/netlabel.h> 39 #include <net/netlabel.h>
26 #include <net/request_sock.h> 40 #include <net/request_sock.h>
27 #include <linux/refcount.h> !! 41 #include <linux/atomic.h>
28 #include <asm/unaligned.h> 42 #include <asm/unaligned.h>
29 43
30 /* known doi values */ 44 /* known doi values */
31 #define CALIPSO_DOI_UNKNOWN 0x0000000 45 #define CALIPSO_DOI_UNKNOWN 0x00000000
32 46
33 /* doi mapping types */ 47 /* doi mapping types */
34 #define CALIPSO_MAP_UNKNOWN 0 48 #define CALIPSO_MAP_UNKNOWN 0
35 #define CALIPSO_MAP_PASS 2 49 #define CALIPSO_MAP_PASS 2
36 50
37 /* 51 /*
38 * CALIPSO DOI definitions 52 * CALIPSO DOI definitions
39 */ 53 */
40 54
41 /* DOI definition struct */ 55 /* DOI definition struct */
42 struct calipso_doi { 56 struct calipso_doi {
43 u32 doi; 57 u32 doi;
44 u32 type; 58 u32 type;
45 59
46 refcount_t refcount; !! 60 atomic_t refcount;
47 struct list_head list; 61 struct list_head list;
48 struct rcu_head rcu; 62 struct rcu_head rcu;
49 }; 63 };
50 64
51 /* 65 /*
52 * Sysctl Variables 66 * Sysctl Variables
53 */ 67 */
54 extern int calipso_cache_enabled; 68 extern int calipso_cache_enabled;
55 extern int calipso_cache_bucketsize; 69 extern int calipso_cache_bucketsize;
56 70
57 #ifdef CONFIG_NETLABEL 71 #ifdef CONFIG_NETLABEL
58 int __init calipso_init(void); 72 int __init calipso_init(void);
59 void calipso_exit(void); 73 void calipso_exit(void);
60 bool calipso_validate(const struct sk_buff *sk 74 bool calipso_validate(const struct sk_buff *skb, const unsigned char *option);
61 #else 75 #else
62 static inline int __init calipso_init(void) 76 static inline int __init calipso_init(void)
63 { 77 {
64 return 0; 78 return 0;
65 } 79 }
66 80
67 static inline void calipso_exit(void) 81 static inline void calipso_exit(void)
68 { 82 {
69 } 83 }
70 static inline bool calipso_validate(const stru 84 static inline bool calipso_validate(const struct sk_buff *skb,
71 const unsi 85 const unsigned char *option)
72 { 86 {
73 return true; 87 return true;
74 } 88 }
75 #endif /* CONFIG_NETLABEL */ 89 #endif /* CONFIG_NETLABEL */
76 90
77 #endif /* _CALIPSO_H */ 91 #endif /* _CALIPSO_H */
78 92
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