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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 */
- #ifdef __KERNEL__
- #include <linux/types.h>
- /* Namespaces */
- #define XATTR_OS2_PREFIX "os2."
- #define XATTR_OS2_PREFIX_LEN (sizeof (XATTR_OS2_PREFIX) - 1)
- #define XATTR_SECURITY_PREFIX "security."
- #define XATTR_SECURITY_PREFIX_LEN (sizeof (XATTR_SECURITY_PREFIX) - 1)
- #define XATTR_SYSTEM_PREFIX "system."
- #define XATTR_SYSTEM_PREFIX_LEN (sizeof (XATTR_SYSTEM_PREFIX) - 1)
- #define XATTR_TRUSTED_PREFIX "trusted."
- #define XATTR_TRUSTED_PREFIX_LEN (sizeof (XATTR_TRUSTED_PREFIX) - 1)
- #define XATTR_USER_PREFIX "user."
- #define XATTR_USER_PREFIX_LEN (sizeof (XATTR_USER_PREFIX) - 1)
- struct inode;
- struct dentry;
- 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 vfs_getxattr(struct dentry *, char *, void *, size_t);
- ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size);
- int vfs_setxattr(struct dentry *, char *, void *, size_t, int);
- int vfs_removexattr(struct dentry *, char *);
- 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 /* __KERNEL__ */
- #endif /* _LINUX_XATTR_H */
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