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_NOLABEL,
17 	INTEGRITY_NOXATTRS,
18 	INTEGRITY_UNKNOWN,
19 };
20 
21 /* List of EVM protected security xattrs */
22 #ifdef CONFIG_INTEGRITY
23 extern struct integrity_iint_cache *integrity_inode_get(struct inode *inode);
24 extern void integrity_inode_free(struct inode *inode);
25 extern void __init integrity_load_keys(void);
26 
27 #else
28 static inline struct integrity_iint_cache *
integrity_inode_get(struct inode * inode)29 				integrity_inode_get(struct inode *inode)
30 {
31 	return NULL;
32 }
33 
integrity_inode_free(struct inode * inode)34 static inline void integrity_inode_free(struct inode *inode)
35 {
36 	return;
37 }
38 
integrity_load_keys(void)39 static inline void integrity_load_keys(void)
40 {
41 }
42 #endif /* CONFIG_INTEGRITY */
43 
44 #ifdef CONFIG_INTEGRITY_ASYMMETRIC_KEYS
45 
46 extern int integrity_kernel_module_request(char *kmod_name);
47 
48 #else
49 
integrity_kernel_module_request(char * kmod_name)50 static inline int integrity_kernel_module_request(char *kmod_name)
51 {
52 	return 0;
53 }
54 
55 #endif /* CONFIG_INTEGRITY_ASYMMETRIC_KEYS */
56 
57 #endif /* _LINUX_INTEGRITY_H */
58