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 prot);
25 extern int ima_file_mprotect(struct vm_area_struct *vma, unsigned long prot);
26 extern int ima_load_data(enum kernel_load_data_id id, bool contents);
27 extern int ima_post_load_data(char *buf, loff_t size,
28 enum kernel_load_data_id id, char *description);
29 extern int ima_read_file(struct file *file, enum kernel_read_file_id id,
31 extern int ima_post_read_file(struct file *file, void *buf, loff_t size,
32 enum kernel_read_file_id id);
33 extern void ima_post_path_mknod(struct user_namespace *mnt_userns,
34 struct dentry *dentry);
35 extern int ima_file_hash(struct file *file, char *buf, size_t buf_size);
36 extern int ima_inode_hash(struct inode *inode, char *buf, size_t buf_size);
37 extern void ima_kexec_cmdline(int kernel_fd, const void *buf, int size);
38 extern int ima_measure_critical_data(const char *event_label,
39 const char *event_name,
40 const void *buf, size_t buf_len,
41 bool hash, u8 *digest, size_t digest_len);
43 #ifdef CONFIG_IMA_APPRAISE_BOOTPARAM
44 extern void ima_appraise_parse_cmdline(void);
46 static inline void ima_appraise_parse_cmdline(void) {}
49 #ifdef CONFIG_IMA_KEXEC
50 extern void ima_add_kexec_buffer(struct kimage *image);
53 #ifdef CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT
54 extern bool arch_ima_get_secureboot(void);
55 extern const char * const *arch_get_ima_policy(void);
57 static inline bool arch_ima_get_secureboot(void)
62 static inline const char * const *arch_get_ima_policy(void)
69 static inline enum hash_algo ima_get_current_hash_algo(void)
71 return HASH_ALGO__LAST;
74 static inline int ima_bprm_check(struct linux_binprm *bprm)
79 static inline int ima_file_check(struct file *file, int mask)
84 static inline void ima_post_create_tmpfile(struct user_namespace *mnt_userns,
89 static inline void ima_file_free(struct file *file)
94 static inline int ima_file_mmap(struct file *file, unsigned long prot)
99 static inline int ima_file_mprotect(struct vm_area_struct *vma,
105 static inline int ima_load_data(enum kernel_load_data_id id, bool contents)
110 static inline int ima_post_load_data(char *buf, loff_t size,
111 enum kernel_load_data_id id,
117 static inline int ima_read_file(struct file *file, enum kernel_read_file_id id,
123 static inline int ima_post_read_file(struct file *file, void *buf, loff_t size,
124 enum kernel_read_file_id id)
129 static inline void ima_post_path_mknod(struct user_namespace *mnt_userns,
130 struct dentry *dentry)
135 static inline int ima_file_hash(struct file *file, char *buf, size_t buf_size)
140 static inline int ima_inode_hash(struct inode *inode, char *buf, size_t buf_size)
145 static inline void ima_kexec_cmdline(int kernel_fd, const void *buf, int size) {}
147 static inline int ima_measure_critical_data(const char *event_label,
148 const char *event_name,
149 const void *buf, size_t buf_len,
150 bool hash, u8 *digest,
156 #endif /* CONFIG_IMA */
158 #ifndef CONFIG_IMA_KEXEC
161 static inline void ima_add_kexec_buffer(struct kimage *image)
165 #ifdef CONFIG_IMA_MEASURE_ASYMMETRIC_KEYS
166 extern void ima_post_key_create_or_update(struct key *keyring,
168 const void *payload, size_t plen,
169 unsigned long flags, bool create);
171 static inline void ima_post_key_create_or_update(struct key *keyring,
177 #endif /* CONFIG_IMA_MEASURE_ASYMMETRIC_KEYS */
179 #ifdef CONFIG_IMA_APPRAISE
180 extern bool is_ima_appraise_enabled(void);
181 extern void ima_inode_post_setattr(struct user_namespace *mnt_userns,
182 struct dentry *dentry);
183 extern int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name,
184 const void *xattr_value, size_t xattr_value_len);
185 extern int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name);
187 static inline bool is_ima_appraise_enabled(void)
192 static inline void ima_inode_post_setattr(struct user_namespace *mnt_userns,
193 struct dentry *dentry)
198 static inline int ima_inode_setxattr(struct dentry *dentry,
199 const char *xattr_name,
200 const void *xattr_value,
201 size_t xattr_value_len)
206 static inline int ima_inode_removexattr(struct dentry *dentry,
207 const char *xattr_name)
211 #endif /* CONFIG_IMA_APPRAISE */
213 #if defined(CONFIG_IMA_APPRAISE) && defined(CONFIG_INTEGRITY_TRUSTED_KEYRING)
214 extern bool ima_appraise_signature(enum kernel_read_file_id func);
216 static inline bool ima_appraise_signature(enum kernel_read_file_id func)
220 #endif /* CONFIG_IMA_APPRAISE && CONFIG_INTEGRITY_TRUSTED_KEYRING */
221 #endif /* _LINUX_IMA_H */