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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
18struct 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
28ssize_t generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size);
29ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size);
30int generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags);
31int generic_removexattr(struct dentry *dentry, const char *name);
32
33#endif /* _LINUX_XATTR_H */