original_kernel/include/linux/xattr.h

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/*
File: linux/xattr.h
Extended attributes handling.
Copyright (C) 2001 by Andreas Gruenbacher <a.gruenbacher@computer.org>
Copyright (c) 2001-2002 Silicon Graphics, Inc. All Rights Reserved.
Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
*/
#ifndef _LINUX_XATTR_H
#define _LINUX_XATTR_H
#define XATTR_CREATE 0x1 /* set value, fail if attr already exists */
#define XATTR_REPLACE 0x2 /* set value, fail if attr does not exist */
#define XATTR_SECURITY_PREFIX "security."
struct xattr_handler {
char *prefix;
size_t (*list)(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len);
int (*get)(struct inode *inode, const char *name, void *buffer,
size_t size);
int (*set)(struct inode *inode, const char *name, const void *buffer,
size_t size, int flags);
};
ssize_t generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size);
ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size);
int generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags);
int generic_removexattr(struct dentry *dentry, const char *name);
#endif /* _LINUX_XATTR_H */