include/linux/ima.h

   1 /*
   2  * Copyright (C) 2008 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_IMA_H
  11 #define _LINUX_IMA_H
  12
  13 #include <linux/fs.h>
  14 #include <linux/kexec.h>
  15 struct linux_binprm;
  16
  17 #ifdef CONFIG_IMA
  18 extern int ima_bprm_check(struct linux_binprm *bprm);
  19 extern int ima_file_check(struct file *file, int mask, int opened);
  20 extern void ima_file_free(struct file *file);
  21 extern int ima_file_mmap(struct file *file, unsigned long prot);
  22 extern int ima_read_file(struct file *file, enum kernel_read_file_id id);
  23 extern int ima_post_read_file(struct file *file, void *buf, loff_t size,
  24                               enum kernel_read_file_id id);
  25 extern void ima_post_path_mknod(struct dentry *dentry);
  26
  27 #ifdef CONFIG_IMA_KEXEC
  28 extern void ima_add_kexec_buffer(struct kimage *image);
  29 #endif
  30
  31 #else
  32 static inline int ima_bprm_check(struct linux_binprm *bprm)
  33 {
  34         return 0;
  35 }
  36
  37 static inline int ima_file_check(struct file *file, int mask, int opened)
  38 {
  39         return 0;
  40 }
  41
  42 static inline void ima_file_free(struct file *file)
  43 {
  44         return;
  45 }
  46
  47 static inline int ima_file_mmap(struct file *file, unsigned long prot)
  48 {
  49         return 0;
  50 }
  51
  52 static inline int ima_read_file(struct file *file, enum kernel_read_file_id id)
  53 {
  54         return 0;
  55 }
  56
  57 static inline int ima_post_read_file(struct file *file, void *buf, loff_t size,
  58                                      enum kernel_read_file_id id)
  59 {
  60         return 0;
  61 }
  62
  63 static inline void ima_post_path_mknod(struct dentry *dentry)
  64 {
  65         return;
  66 }
  67
  68 #endif /* CONFIG_IMA */
  69
  70 #ifndef CONFIG_IMA_KEXEC
  71 struct kimage;
  72
  73 static inline void ima_add_kexec_buffer(struct kimage *image)
  74 {}
  75 #endif
  76
  77 #ifdef CONFIG_IMA_APPRAISE
  78 extern bool is_ima_appraise_enabled(void);
  79 extern void ima_inode_post_setattr(struct dentry *dentry);
  80 extern int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name,
  81                        const void *xattr_value, size_t xattr_value_len);
  82 extern int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name);
  83 #else
  84 static inline bool is_ima_appraise_enabled(void)
  85 {
  86         return 0;
  87 }
  88
  89 static inline void ima_inode_post_setattr(struct dentry *dentry)
  90 {
  91         return;
  92 }
  93
  94 static inline int ima_inode_setxattr(struct dentry *dentry,
  95                                      const char *xattr_name,
  96                                      const void *xattr_value,
  97                                      size_t xattr_value_len)
  98 {
  99         return 0;
 100 }
 101
 102 static inline int ima_inode_removexattr(struct dentry *dentry,
 103                                         const char *xattr_name)
 104 {
 105         return 0;
 106 }
 107 #endif /* CONFIG_IMA_APPRAISE */
 108 #endif /* _LINUX_IMA_H */