Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Adrian Bunk | 5b0a207 | 2007-02-10 01:46:24 -0800 | [diff] [blame] | 16 | #ifdef __KERNEL__ |
| 17 | |
| 18 | #include <linux/types.h> |
| 19 | |
akpm@osdl.org | e0ad7b0 | 2006-01-09 20:51:56 -0800 | [diff] [blame] | 20 | /* Namespaces */ |
| 21 | #define XATTR_OS2_PREFIX "os2." |
| 22 | #define XATTR_OS2_PREFIX_LEN (sizeof (XATTR_OS2_PREFIX) - 1) |
| 23 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #define XATTR_SECURITY_PREFIX "security." |
akpm@osdl.org | e0ad7b0 | 2006-01-09 20:51:56 -0800 | [diff] [blame] | 25 | #define XATTR_SECURITY_PREFIX_LEN (sizeof (XATTR_SECURITY_PREFIX) - 1) |
| 26 | |
| 27 | #define XATTR_SYSTEM_PREFIX "system." |
| 28 | #define XATTR_SYSTEM_PREFIX_LEN (sizeof (XATTR_SYSTEM_PREFIX) - 1) |
| 29 | |
| 30 | #define XATTR_TRUSTED_PREFIX "trusted." |
| 31 | #define XATTR_TRUSTED_PREFIX_LEN (sizeof (XATTR_TRUSTED_PREFIX) - 1) |
| 32 | |
| 33 | #define XATTR_USER_PREFIX "user." |
| 34 | #define XATTR_USER_PREFIX_LEN (sizeof (XATTR_USER_PREFIX) - 1) |
| 35 | |
Adrian Bunk | 5b0a207 | 2007-02-10 01:46:24 -0800 | [diff] [blame] | 36 | struct inode; |
| 37 | struct dentry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
| 39 | struct xattr_handler { |
| 40 | char *prefix; |
| 41 | size_t (*list)(struct inode *inode, char *list, size_t list_size, |
| 42 | const char *name, size_t name_len); |
| 43 | int (*get)(struct inode *inode, const char *name, void *buffer, |
| 44 | size_t size); |
| 45 | int (*set)(struct inode *inode, const char *name, const void *buffer, |
| 46 | size_t size, int flags); |
| 47 | }; |
| 48 | |
David P. Quigley | 4249259 | 2008-02-04 22:29:39 -0800 | [diff] [blame] | 49 | ssize_t xattr_getsecurity(struct inode *, const char *, void *, size_t); |
Christoph Hellwig | 5be196e | 2006-01-09 20:51:55 -0800 | [diff] [blame] | 50 | ssize_t vfs_getxattr(struct dentry *, char *, void *, size_t); |
Bill Nottingham | 659564c | 2006-10-09 16:10:48 -0400 | [diff] [blame] | 51 | ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size); |
Christoph Hellwig | 5be196e | 2006-01-09 20:51:55 -0800 | [diff] [blame] | 52 | int vfs_setxattr(struct dentry *, char *, void *, size_t, int); |
| 53 | int vfs_removexattr(struct dentry *, char *); |
| 54 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | ssize_t generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size); |
| 56 | ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size); |
| 57 | int generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); |
| 58 | int generic_removexattr(struct dentry *dentry, const char *name); |
| 59 | |
Adrian Bunk | 5b0a207 | 2007-02-10 01:46:24 -0800 | [diff] [blame] | 60 | #endif /* __KERNEL__ */ |
| 61 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | #endif /* _LINUX_XATTR_H */ |