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