include/linux/integrity.h

   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 *
  29                                 integrity_inode_get(struct inode *inode)
  30 {
  31         return NULL;
  32 }
  33
  34 static inline void integrity_inode_free(struct inode *inode)
  35 {
  36         return;
  37 }
  38
  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
  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 */