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/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2008 IBM Corporation * Author: Mimi Zohar <zohar@us.ibm.com> */ #ifndef _LINUX_IMA_H #define _LINUX_IMA_H #include <linux/fs.h> #include <linux/security.h> #include <linux/kexec.h> struct linux_binprm; #ifdef CONFIG_IMA extern int ima_bprm_check(struct linux_binprm *bprm); extern int ima_file_check(struct file *file, int mask); extern void ima_post_create_tmpfile(struct inode *inode); extern void ima_file_free(struct file *file); extern int ima_file_mmap(struct file *file, unsigned long reqprot, unsigned long prot, unsigned long flags); extern int ima_load_data(enum kernel_load_data_id id); extern int ima_read_file(struct file *file, enum kernel_read_file_id id); extern int ima_post_read_file(struct file *file, void *buf, loff_t size, enum kernel_read_file_id id); extern void ima_post_path_mknod(struct dentry *dentry); extern void ima_kexec_cmdline(const void *buf, int size); #ifdef CONFIG_IMA_KEXEC extern void ima_add_kexec_buffer(struct kimage *image); #endif #if (defined(CONFIG_X86) && defined(CONFIG_EFI)) || defined(CONFIG_S390) \ || defined(CONFIG_PPC_SECURE_BOOT) extern bool arch_ima_get_secureboot(void); extern const char * const *arch_get_ima_policy(void); #else static inline bool arch_ima_get_secureboot(void) { return false; } static inline const char * const *arch_get_ima_policy(void) { return NULL; } #endif #else static inline int ima_bprm_check(struct linux_binprm *bprm) { return 0; } static inline int ima_file_check(struct file *file, int mask) { return 0; } static inline void ima_post_create_tmpfile(struct inode *inode) { } static inline void ima_file_free(struct file *file) { return; } static inline int ima_file_mmap(struct file *file, unsigned long reqprot, unsigned long prot, unsigned long flags) { return 0; } static inline int ima_load_data(enum kernel_load_data_id id) { return 0; } static inline int ima_read_file(struct file *file, enum kernel_read_file_id id) { return 0; } static inline int ima_post_read_file(struct file *file, void *buf, loff_t size, enum kernel_read_file_id id) { return 0; } static inline void ima_post_path_mknod(struct dentry *dentry) { return; } static inline void ima_kexec_cmdline(const void *buf, int size) {} #endif /* CONFIG_IMA */ #ifndef CONFIG_IMA_KEXEC struct kimage; static inline void ima_add_kexec_buffer(struct kimage *image) {} #endif #ifdef CONFIG_IMA_APPRAISE extern bool is_ima_appraise_enabled(void); extern void ima_inode_post_setattr(struct dentry *dentry); extern int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name, const void *xattr_value, size_t xattr_value_len); extern int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name); #else static inline bool is_ima_appraise_enabled(void) { return 0; } static inline void ima_inode_post_setattr(struct dentry *dentry) { return; } static inline int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name, const void *xattr_value, size_t xattr_value_len) { return 0; } static inline int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name) { return 0; } #endif /* CONFIG_IMA_APPRAISE */ #if defined(CONFIG_IMA_APPRAISE) && defined(CONFIG_INTEGRITY_TRUSTED_KEYRING) extern bool ima_appraise_signature(enum kernel_read_file_id func); #else static inline bool ima_appraise_signature(enum kernel_read_file_id func) { return false; } #endif /* CONFIG_IMA_APPRAISE && CONFIG_INTEGRITY_TRUSTED_KEYRING */ #endif /* _LINUX_IMA_H */
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