Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2008 IBM Corporation
4 * Author: Mimi Zohar <zohar@us.ibm.com>
5 */
6
7#ifndef _LINUX_IMA_H
8#define _LINUX_IMA_H
9
10#include <linux/fs.h>
11#include <linux/security.h>
12#include <linux/kexec.h>
13struct linux_binprm;
14
15#ifdef CONFIG_IMA
16extern int ima_bprm_check(struct linux_binprm *bprm);
17extern int ima_file_check(struct file *file, int mask);
18extern void ima_post_create_tmpfile(struct inode *inode);
19extern void ima_file_free(struct file *file);
20extern int ima_file_mmap(struct file *file, unsigned long prot);
21extern int ima_load_data(enum kernel_load_data_id id);
22extern int ima_read_file(struct file *file, enum kernel_read_file_id id);
23extern int ima_post_read_file(struct file *file, void *buf, loff_t size,
24 enum kernel_read_file_id id);
25extern void ima_post_path_mknod(struct dentry *dentry);
26extern void ima_kexec_cmdline(const void *buf, int size);
27
28#ifdef CONFIG_IMA_KEXEC
29extern void ima_add_kexec_buffer(struct kimage *image);
30#endif
31
32#if (defined(CONFIG_X86) && defined(CONFIG_EFI)) || defined(CONFIG_S390)
33extern bool arch_ima_get_secureboot(void);
34extern const char * const *arch_get_ima_policy(void);
35#else
36static inline bool arch_ima_get_secureboot(void)
37{
38 return false;
39}
40
41static inline const char * const *arch_get_ima_policy(void)
42{
43 return NULL;
44}
45#endif
46
47#else
48static inline int ima_bprm_check(struct linux_binprm *bprm)
49{
50 return 0;
51}
52
53static inline int ima_file_check(struct file *file, int mask)
54{
55 return 0;
56}
57
58static inline void ima_post_create_tmpfile(struct inode *inode)
59{
60}
61
62static inline void ima_file_free(struct file *file)
63{
64 return;
65}
66
67static inline int ima_file_mmap(struct file *file, unsigned long prot)
68{
69 return 0;
70}
71
72static inline int ima_load_data(enum kernel_load_data_id id)
73{
74 return 0;
75}
76
77static inline int ima_read_file(struct file *file, enum kernel_read_file_id id)
78{
79 return 0;
80}
81
82static inline int ima_post_read_file(struct file *file, void *buf, loff_t size,
83 enum kernel_read_file_id id)
84{
85 return 0;
86}
87
88static inline void ima_post_path_mknod(struct dentry *dentry)
89{
90 return;
91}
92
93static inline void ima_kexec_cmdline(const void *buf, int size) {}
94#endif /* CONFIG_IMA */
95
96#ifndef CONFIG_IMA_KEXEC
97struct kimage;
98
99static inline void ima_add_kexec_buffer(struct kimage *image)
100{}
101#endif
102
103#ifdef CONFIG_IMA_APPRAISE
104extern bool is_ima_appraise_enabled(void);
105extern void ima_inode_post_setattr(struct dentry *dentry);
106extern int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name,
107 const void *xattr_value, size_t xattr_value_len);
108extern int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name);
109#else
110static inline bool is_ima_appraise_enabled(void)
111{
112 return 0;
113}
114
115static inline void ima_inode_post_setattr(struct dentry *dentry)
116{
117 return;
118}
119
120static inline int ima_inode_setxattr(struct dentry *dentry,
121 const char *xattr_name,
122 const void *xattr_value,
123 size_t xattr_value_len)
124{
125 return 0;
126}
127
128static inline int ima_inode_removexattr(struct dentry *dentry,
129 const char *xattr_name)
130{
131 return 0;
132}
133#endif /* CONFIG_IMA_APPRAISE */
134
135#if defined(CONFIG_IMA_APPRAISE) && defined(CONFIG_INTEGRITY_TRUSTED_KEYRING)
136extern bool ima_appraise_signature(enum kernel_read_file_id func);
137#else
138static inline bool ima_appraise_signature(enum kernel_read_file_id func)
139{
140 return false;
141}
142#endif /* CONFIG_IMA_APPRAISE && CONFIG_INTEGRITY_TRUSTED_KEYRING */
143#endif /* _LINUX_IMA_H */