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/security.h>
  15 #include <linux/kexec.h>
  16 struct linux_binprm;
  17
  18 #ifdef CONFIG_IMA
  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_file_free(struct file *file);
  22 extern int ima_file_mmap(struct file *file, unsigned long prot);
  23 extern int ima_load_data(enum kernel_load_data_id id);
  24 extern int ima_read_file(struct file *file, enum kernel_read_file_id id);
  25 extern int ima_post_read_file(struct file *file, void *buf, loff_t size,
  26                               enum kernel_read_file_id id);
  27 extern void ima_post_path_mknod(struct dentry *dentry);
  28
  29 #ifdef CONFIG_IMA_KEXEC
  30 extern void ima_add_kexec_buffer(struct kimage *image);
  31 #endif
  32
  33 #else
  34 static inline int ima_bprm_check(struct linux_binprm *bprm)
  35 {
  36         return 0;
  37 }
  38
  39 static inline int ima_file_check(struct file *file, int mask)
  40 {
  41         return 0;
  42 }
  43
  44 static inline void ima_file_free(struct file *file)
  45 {
  46         return;
  47 }
  48
  49 static inline int ima_file_mmap(struct file *file, unsigned long prot)
  50 {
  51         return 0;
  52 }
  53
  54 static inline int ima_load_data(enum kernel_load_data_id id)
  55 {
  56         return 0;
  57 }
  58
  59 static inline int ima_read_file(struct file *file, enum kernel_read_file_id id)
  60 {
  61         return 0;
  62 }
  63
  64 static inline int ima_post_read_file(struct file *file, void *buf, loff_t size,
  65                                      enum kernel_read_file_id id)
  66 {
  67         return 0;
  68 }
  69
  70 static inline void ima_post_path_mknod(struct dentry *dentry)
  71 {
  72         return;
  73 }
  74
  75 #endif /* CONFIG_IMA */
  76
  77 #ifndef CONFIG_IMA_KEXEC
  78 struct kimage;
  79
  80 static inline void ima_add_kexec_buffer(struct kimage *image)
  81 {}
  82 #endif
  83
  84 #ifdef CONFIG_IMA_APPRAISE
  85 extern bool is_ima_appraise_enabled(void);
  86 extern void ima_inode_post_setattr(struct dentry *dentry);
  87 extern int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name,
  88                        const void *xattr_value, size_t xattr_value_len);
  89 extern int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name);
  90 #else
  91 static inline bool is_ima_appraise_enabled(void)
  92 {
  93         return 0;
  94 }
  95
  96 static inline void ima_inode_post_setattr(struct dentry *dentry)
  97 {
  98         return;
  99 }
 100
 101 static inline int ima_inode_setxattr(struct dentry *dentry,
 102                                      const char *xattr_name,
 103                                      const void *xattr_value,
 104                                      size_t xattr_value_len)
 105 {
 106         return 0;
 107 }
 108
 109 static inline int ima_inode_removexattr(struct dentry *dentry,
 110                                         const char *xattr_name)
 111 {
 112         return 0;
 113 }
 114 #endif /* CONFIG_IMA_APPRAISE */
 115 #endif /* _LINUX_IMA_H */