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 */ 116