1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2009 IBM Corporation
4  * Author: Mimi Zohar <zohar@us.ibm.com>
5  */
6 
7 #ifndef _LINUX_INTEGRITY_H
8 #define _LINUX_INTEGRITY_H
9 
10 #include <linux/fs.h>
11 
12 enum integrity_status {
13 	INTEGRITY_PASS = 0,
14 	INTEGRITY_PASS_IMMUTABLE,
15 	INTEGRITY_FAIL,
16 	INTEGRITY_FAIL_IMMUTABLE,
17 	INTEGRITY_NOLABEL,
18 	INTEGRITY_NOXATTRS,
19 	INTEGRITY_UNKNOWN,
20 };
21 
22 /* List of EVM protected security xattrs */
23 #ifdef CONFIG_INTEGRITY
24 extern struct integrity_iint_cache *integrity_inode_get(struct inode *inode);
25 extern void integrity_inode_free(struct inode *inode);
26 extern void __init integrity_load_keys(void);
27 
28 #else
29 static inline struct integrity_iint_cache *
integrity_inode_get(struct inode * inode)30 				integrity_inode_get(struct inode *inode)
31 {
32 	return NULL;
33 }
34 
integrity_inode_free(struct inode * inode)35 static inline void integrity_inode_free(struct inode *inode)
36 {
37 	return;
38 }
39 
integrity_load_keys(void)40 static inline void integrity_load_keys(void)
41 {
42 }
43 #endif /* CONFIG_INTEGRITY */
44 
45 #ifdef CONFIG_INTEGRITY_ASYMMETRIC_KEYS
46 
47 extern int integrity_kernel_module_request(char *kmod_name);
48 
49 #else
50 
integrity_kernel_module_request(char * kmod_name)51 static inline int integrity_kernel_module_request(char *kmod_name)
52 {
53 	return 0;
54 }
55 
56 #endif /* CONFIG_INTEGRITY_ASYMMETRIC_KEYS */
57 
58 #endif /* _LINUX_INTEGRITY_H */
59