1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2008 IBM Corporation
4 * Author: Mimi Zohar <zohar@us.ibm.com>
10 #include <linux/kernel_read_file.h>
12 #include <linux/security.h>
13 #include <linux/kexec.h>
14 #include <crypto/hash_info.h>
18 extern enum hash_algo ima_get_current_hash_algo(void);
19 extern int ima_bprm_check(struct linux_binprm *bprm);
20 extern int ima_file_check(struct file *file, int mask);
21 extern void ima_post_create_tmpfile(struct user_namespace *mnt_userns,
23 extern void ima_file_free(struct file *file);
24 extern int ima_file_mmap(struct file *file, unsigned long reqprot,
25 unsigned long prot, unsigned long flags);
26 extern int ima_file_mprotect(struct vm_area_struct *vma, unsigned long prot);
27 extern int ima_load_data(enum kernel_load_data_id id, bool contents);
28 extern int ima_post_load_data(char *buf, loff_t size,
29 enum kernel_load_data_id id, char *description);
30 extern int ima_read_file(struct file *file, enum kernel_read_file_id id,
32 extern int ima_post_read_file(struct file *file, void *buf, loff_t size,
33 enum kernel_read_file_id id);
34 extern void ima_post_path_mknod(struct user_namespace *mnt_userns,
35 struct dentry *dentry);
36 extern int ima_file_hash(struct file *file, char *buf, size_t buf_size);
37 extern int ima_inode_hash(struct inode *inode, char *buf, size_t buf_size);
38 extern void ima_kexec_cmdline(int kernel_fd, const void *buf, int size);
39 extern int ima_measure_critical_data(const char *event_label,
40 const char *event_name,
41 const void *buf, size_t buf_len,
42 bool hash, u8 *digest, size_t digest_len);
44 #ifdef CONFIG_IMA_APPRAISE_BOOTPARAM
45 extern void ima_appraise_parse_cmdline(void);
47 static inline void ima_appraise_parse_cmdline(void) {}
50 #ifdef CONFIG_IMA_KEXEC
51 extern void ima_add_kexec_buffer(struct kimage *image);
54 #ifdef CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT
55 extern bool arch_ima_get_secureboot(void);
56 extern const char * const *arch_get_ima_policy(void);
58 static inline bool arch_ima_get_secureboot(void)
63 static inline const char * const *arch_get_ima_policy(void)
70 static inline enum hash_algo ima_get_current_hash_algo(void)
72 return HASH_ALGO__LAST;
75 static inline int ima_bprm_check(struct linux_binprm *bprm)
80 static inline int ima_file_check(struct file *file, int mask)
85 static inline void ima_post_create_tmpfile(struct user_namespace *mnt_userns,
90 static inline void ima_file_free(struct file *file)
95 static inline int ima_file_mmap(struct file *file, unsigned long reqprot,
96 unsigned long prot, unsigned long flags)
101 static inline int ima_file_mprotect(struct vm_area_struct *vma,
107 static inline int ima_load_data(enum kernel_load_data_id id, bool contents)
112 static inline int ima_post_load_data(char *buf, loff_t size,
113 enum kernel_load_data_id id,
119 static inline int ima_read_file(struct file *file, enum kernel_read_file_id id,
125 static inline int ima_post_read_file(struct file *file, void *buf, loff_t size,
126 enum kernel_read_file_id id)
131 static inline void ima_post_path_mknod(struct user_namespace *mnt_userns,
132 struct dentry *dentry)
137 static inline int ima_file_hash(struct file *file, char *buf, size_t buf_size)
142 static inline int ima_inode_hash(struct inode *inode, char *buf, size_t buf_size)
147 static inline void ima_kexec_cmdline(int kernel_fd, const void *buf, int size) {}
149 static inline int ima_measure_critical_data(const char *event_label,
150 const char *event_name,
151 const void *buf, size_t buf_len,
152 bool hash, u8 *digest,
158 #endif /* CONFIG_IMA */
160 #ifndef CONFIG_IMA_KEXEC
163 static inline void ima_add_kexec_buffer(struct kimage *image)
167 #ifdef CONFIG_IMA_MEASURE_ASYMMETRIC_KEYS
168 extern void ima_post_key_create_or_update(struct key *keyring,
170 const void *payload, size_t plen,
171 unsigned long flags, bool create);
173 static inline void ima_post_key_create_or_update(struct key *keyring,
179 #endif /* CONFIG_IMA_MEASURE_ASYMMETRIC_KEYS */
181 #ifdef CONFIG_IMA_APPRAISE
182 extern bool is_ima_appraise_enabled(void);
183 extern void ima_inode_post_setattr(struct user_namespace *mnt_userns,
184 struct dentry *dentry);
185 extern int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name,
186 const void *xattr_value, size_t xattr_value_len);
187 extern int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name);
189 static inline bool is_ima_appraise_enabled(void)
194 static inline void ima_inode_post_setattr(struct user_namespace *mnt_userns,
195 struct dentry *dentry)
200 static inline int ima_inode_setxattr(struct dentry *dentry,
201 const char *xattr_name,
202 const void *xattr_value,
203 size_t xattr_value_len)
208 static inline int ima_inode_removexattr(struct dentry *dentry,
209 const char *xattr_name)
213 #endif /* CONFIG_IMA_APPRAISE */
215 #if defined(CONFIG_IMA_APPRAISE) && defined(CONFIG_INTEGRITY_TRUSTED_KEYRING)
216 extern bool ima_appraise_signature(enum kernel_read_file_id func);
218 static inline bool ima_appraise_signature(enum kernel_read_file_id func)
222 #endif /* CONFIG_IMA_APPRAISE && CONFIG_INTEGRITY_TRUSTED_KEYRING */
223 #endif /* _LINUX_IMA_H */