1 /* 2 * evm.h 3 * 4 * Copyright (c) 2009 IBM Corporation 5 * Author: Mimi Zohar <[email protected]> 6 */ 7 8 #ifndef _LINUX_EVM_H 9 #define _LINUX_EVM_H 10 11 #include <linux/integrity.h> 12 #include <linux/xattr.h> 13 14 struct integrity_iint_cache; 15 16 #ifdef CONFIG_EVM 17 extern enum integrity_status evm_verifyxattr(struct dentry *dentry, 18 const char *xattr_name, 19 void *xattr_value, 20 size_t xattr_value_len, 21 struct integrity_iint_cache *iint); 22 extern int evm_inode_setattr(struct dentry *dentry, struct iattr *attr); 23 extern void evm_inode_post_setattr(struct dentry *dentry, int ia_valid); 24 extern int evm_inode_setxattr(struct dentry *dentry, const char *name, 25 const void *value, size_t size); 26 extern void evm_inode_post_setxattr(struct dentry *dentry, 27 const char *xattr_name, 28 const void *xattr_value, 29 size_t xattr_value_len); 30 extern int evm_inode_removexattr(struct dentry *dentry, const char *xattr_name); 31 extern void evm_inode_post_removexattr(struct dentry *dentry, 32 const char *xattr_name); 33 extern int evm_inode_init_security(struct inode *inode, 34 const struct xattr *xattr_array, 35 struct xattr *evm); 36 #ifdef CONFIG_FS_POSIX_ACL 37 extern int posix_xattr_acl(const char *xattrname); 38 #else 39 static inline int posix_xattr_acl(const char *xattrname) 40 { 41 return 0; 42 } 43 #endif 44 #else 45 #ifdef CONFIG_INTEGRITY 46 static inline enum integrity_status evm_verifyxattr(struct dentry *dentry, 47 const char *xattr_name, 48 void *xattr_value, 49 size_t xattr_value_len, 50 struct integrity_iint_cache *iint) 51 { 52 return INTEGRITY_UNKNOWN; 53 } 54 #endif 55 56 static inline int evm_inode_setattr(struct dentry *dentry, struct iattr *attr) 57 { 58 return 0; 59 } 60 61 static inline void evm_inode_post_setattr(struct dentry *dentry, int ia_valid) 62 { 63 return; 64 } 65 66 static inline int evm_inode_setxattr(struct dentry *dentry, const char *name, 67 const void *value, size_t size) 68 { 69 return 0; 70 } 71 72 static inline void evm_inode_post_setxattr(struct dentry *dentry, 73 const char *xattr_name, 74 const void *xattr_value, 75 size_t xattr_value_len) 76 { 77 return; 78 } 79 80 static inline int evm_inode_removexattr(struct dentry *dentry, 81 const char *xattr_name) 82 { 83 return 0; 84 } 85 86 static inline void evm_inode_post_removexattr(struct dentry *dentry, 87 const char *xattr_name) 88 { 89 return; 90 } 91 92 static inline int evm_inode_init_security(struct inode *inode, 93 const struct xattr *xattr_array, 94 struct xattr *evm) 95 { 96 return 0; 97 } 98 99 #endif /* CONFIG_EVM_H */ 100 #endif /* LINUX_EVM_H */ 101