Commit | Line | Data |
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1da177e4 LT |
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 | ||
5b0a2075 AB |
16 | #ifdef __KERNEL__ |
17 | ||
18 | #include <linux/types.h> | |
19 | ||
e0ad7b07 AM |
20 | /* Namespaces */ |
21 | #define XATTR_OS2_PREFIX "os2." | |
22 | #define XATTR_OS2_PREFIX_LEN (sizeof (XATTR_OS2_PREFIX) - 1) | |
23 | ||
1da177e4 | 24 | #define XATTR_SECURITY_PREFIX "security." |
e0ad7b07 AM |
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 | ||
5b0a2075 AB |
36 | struct inode; |
37 | struct dentry; | |
1da177e4 LT |
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 | ||
5be196e5 | 49 | ssize_t vfs_getxattr(struct dentry *, char *, void *, size_t); |
659564c8 | 50 | ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size); |
5be196e5 CH |
51 | int vfs_setxattr(struct dentry *, char *, void *, size_t, int); |
52 | int vfs_removexattr(struct dentry *, char *); | |
53 | ||
1da177e4 LT |
54 | ssize_t generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size); |
55 | ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size); | |
56 | int generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); | |
57 | int generic_removexattr(struct dentry *dentry, const char *name); | |
58 | ||
5b0a2075 AB |
59 | #endif /* __KERNEL__ */ |
60 | ||
1da177e4 | 61 | #endif /* _LINUX_XATTR_H */ |