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