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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> 16struct linux_binprm; 17 18#ifdef CONFIG_IMA 19extern int ima_bprm_check(struct linux_binprm *bprm); 20extern int ima_file_check(struct file *file, int mask); 21extern void ima_post_create_tmpfile(struct inode *inode); 22extern void ima_file_free(struct file *file); 23extern int ima_file_mmap(struct file *file, unsigned long prot); 24extern int ima_load_data(enum kernel_load_data_id id); 25extern int ima_read_file(struct file *file, enum kernel_read_file_id id); 26extern int ima_post_read_file(struct file *file, void *buf, loff_t size, 27 enum kernel_read_file_id id); 28extern void ima_post_path_mknod(struct dentry *dentry); 29 30#ifdef CONFIG_IMA_KEXEC 31extern void ima_add_kexec_buffer(struct kimage *image); 32#endif 33 34#if defined(CONFIG_X86) && defined(CONFIG_EFI) 35extern bool arch_ima_get_secureboot(void); 36extern const char * const *arch_get_ima_policy(void); 37#else 38static inline bool arch_ima_get_secureboot(void) 39{ 40 return false; 41} 42 43static inline const char * const *arch_get_ima_policy(void) 44{ 45 return NULL; 46} 47#endif 48 49#else 50static inline int ima_bprm_check(struct linux_binprm *bprm) 51{ 52 return 0; 53} 54 55static inline int ima_file_check(struct file *file, int mask) 56{ 57 return 0; 58} 59 60static inline void ima_post_create_tmpfile(struct inode *inode) 61{ 62} 63 64static inline void ima_file_free(struct file *file) 65{ 66 return; 67} 68 69static inline int ima_file_mmap(struct file *file, unsigned long prot) 70{ 71 return 0; 72} 73 74static inline int ima_load_data(enum kernel_load_data_id id) 75{ 76 return 0; 77} 78 79static inline int ima_read_file(struct file *file, enum kernel_read_file_id id) 80{ 81 return 0; 82} 83 84static inline int ima_post_read_file(struct file *file, void *buf, loff_t size, 85 enum kernel_read_file_id id) 86{ 87 return 0; 88} 89 90static inline void ima_post_path_mknod(struct dentry *dentry) 91{ 92 return; 93} 94 95#endif /* CONFIG_IMA */ 96 97#ifndef CONFIG_IMA_KEXEC 98struct kimage; 99 100static inline void ima_add_kexec_buffer(struct kimage *image) 101{} 102#endif 103 104#ifdef CONFIG_IMA_APPRAISE 105extern bool is_ima_appraise_enabled(void); 106extern void ima_inode_post_setattr(struct dentry *dentry); 107extern int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name, 108 const void *xattr_value, size_t xattr_value_len); 109extern int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name); 110#else 111static inline bool is_ima_appraise_enabled(void) 112{ 113 return 0; 114} 115 116static inline void ima_inode_post_setattr(struct dentry *dentry) 117{ 118 return; 119} 120 121static inline int ima_inode_setxattr(struct dentry *dentry, 122 const char *xattr_name, 123 const void *xattr_value, 124 size_t xattr_value_len) 125{ 126 return 0; 127} 128 129static inline int ima_inode_removexattr(struct dentry *dentry, 130 const char *xattr_name) 131{ 132 return 0; 133} 134#endif /* CONFIG_IMA_APPRAISE */ 135#endif /* _LINUX_IMA_H */