include/linux/integrity.h

   1 /*
   2  * Copyright (C) 2009 IBM Corporation
   3  * Author: Mimi Zohar <zohar@us.ibm.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, version 2 of the License.
   8  */
   9
  10 #ifndef _LINUX_INTEGRITY_H
  11 #define _LINUX_INTEGRITY_H
  12
  13 #include <linux/fs.h>
  14
  15 enum integrity_status {
  16         INTEGRITY_PASS = 0,
  17         INTEGRITY_PASS_IMMUTABLE,
  18         INTEGRITY_FAIL,
  19         INTEGRITY_NOLABEL,
  20         INTEGRITY_NOXATTRS,
  21         INTEGRITY_UNKNOWN,
  22 };
  23
  24 /* List of EVM protected security xattrs */
  25 #ifdef CONFIG_INTEGRITY
  26 extern struct integrity_iint_cache *integrity_inode_get(struct inode *inode);
  27 extern void integrity_inode_free(struct inode *inode);
  28 extern void __init integrity_load_keys(void);
  29
  30 #else
  31 static inline struct integrity_iint_cache *
  32                                 integrity_inode_get(struct inode *inode)
  33 {
  34         return NULL;
  35 }
  36
  37 static inline void integrity_inode_free(struct inode *inode)
  38 {
  39         return;
  40 }
  41
  42 static inline void integrity_load_keys(void)
  43 {
  44 }
  45 #endif /* CONFIG_INTEGRITY */
  46
  47 #ifdef CONFIG_INTEGRITY_ASYMMETRIC_KEYS
  48
  49 extern int integrity_kernel_module_request(char *kmod_name);
  50
  51 #else
  52
  53 static inline int integrity_kernel_module_request(char *kmod_name)
  54 {
  55         return 0;
  56 }
  57
  58 #endif /* CONFIG_INTEGRITY_ASYMMETRIC_KEYS */
  59
  60 #endif /* _LINUX_INTEGRITY_H */