1 /*
2  * AppArmor security module
3  *
4  * This file contains AppArmor policy loading interface function definitions.
5  *
6  * Copyright 2013 Canonical Ltd.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation, version 2 of the
11  * License.
12  */
13 
14 #ifndef __APPARMOR_CRYPTO_H
15 #define __APPARMOR_CRYPTO_H
16 
17 #include "policy.h"
18 
19 #ifdef CONFIG_SECURITY_APPARMOR_HASH
20 unsigned int aa_hash_size(void);
21 char *aa_calc_hash(void *data, size_t len);
22 int aa_calc_profile_hash(struct aa_profile *profile, u32 version, void *start,
23 			 size_t len);
24 #else
25 static inline char *aa_calc_hash(void *data, size_t len)
26 {
27 	return NULL;
28 }
29 static inline int aa_calc_profile_hash(struct aa_profile *profile, u32 version,
30 				       void *start, size_t len)
31 {
32 	return 0;
33 }
34 
35 static inline unsigned int aa_hash_size(void)
36 {
37 	return 0;
38 }
39 #endif
40 
41 #endif /* __APPARMOR_CRYPTO_H */
42