1 /* 2 File: linux/xattr.h 3 4 Extended attributes handling. 5 6 Copyright (C) 2001 by Andreas Gruenbacher <a.gruenbacher@computer.org> 7 Copyright (c) 2001-2002 Silicon Graphics, Inc. All Rights Reserved. 8 Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com> 9 */ 10 #ifndef _LINUX_XATTR_H 11 #define _LINUX_XATTR_H 12 13 #define XATTR_CREATE 0x1 /* set value, fail if attr already exists */ 14 #define XATTR_REPLACE 0x2 /* set value, fail if attr does not exist */ 15 16 #define XATTR_SECURITY_PREFIX "security." 17 18 struct xattr_handler { 19 char *prefix; 20 size_t (*list)(struct inode *inode, char *list, size_t list_size, 21 const char *name, size_t name_len); 22 int (*get)(struct inode *inode, const char *name, void *buffer, 23 size_t size); 24 int (*set)(struct inode *inode, const char *name, const void *buffer, 25 size_t size, int flags); 26 }; 27 28 ssize_t generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size); 29 ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size); 30 int generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); 31 int generic_removexattr(struct dentry *dentry, const char *name); 32 33 #endif /* _LINUX_XATTR_H */ 34