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cf1d6c76 TY |
1 | /* -*- mode: c; c-basic-offset: 8; -*- |
2 | * vim: noexpandtab sw=8 ts=8 sts=0: | |
3 | * | |
4 | * xattr.h | |
5 | * | |
c3cb6827 | 6 | * Copyright (C) 2004, 2008 Oracle. All rights reserved. |
cf1d6c76 TY |
7 | * |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public | |
c3cb6827 | 10 | * License version 2 as published by the Free Software Foundation. |
cf1d6c76 TY |
11 | * |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
cf1d6c76 TY |
16 | */ |
17 | ||
18 | #ifndef OCFS2_XATTR_H | |
19 | #define OCFS2_XATTR_H | |
20 | ||
21 | #include <linux/init.h> | |
22 | #include <linux/xattr.h> | |
23 | ||
24 | enum ocfs2_xattr_type { | |
25 | OCFS2_XATTR_INDEX_USER = 1, | |
26 | OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS, | |
27 | OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT, | |
28 | OCFS2_XATTR_INDEX_TRUSTED, | |
29 | OCFS2_XATTR_INDEX_SECURITY, | |
30 | OCFS2_XATTR_MAX | |
31 | }; | |
32 | ||
534eaddd TY |
33 | struct ocfs2_security_xattr_info { |
34 | int enable; | |
35 | char *name; | |
36 | void *value; | |
37 | size_t value_len; | |
38 | }; | |
39 | ||
cf1d6c76 TY |
40 | extern struct xattr_handler ocfs2_xattr_user_handler; |
41 | extern struct xattr_handler ocfs2_xattr_trusted_handler; | |
923f7f31 | 42 | extern struct xattr_handler ocfs2_xattr_security_handler; |
929fb014 TY |
43 | #ifdef CONFIG_OCFS2_FS_POSIX_ACL |
44 | extern struct xattr_handler ocfs2_xattr_acl_access_handler; | |
45 | extern struct xattr_handler ocfs2_xattr_acl_default_handler; | |
46 | #endif | |
cf1d6c76 TY |
47 | extern struct xattr_handler *ocfs2_xattr_handlers[]; |
48 | ||
0030e001 | 49 | ssize_t ocfs2_listxattr(struct dentry *, char *, size_t); |
4e3e9d02 TY |
50 | int ocfs2_xattr_get_nolock(struct inode *, struct buffer_head *, int, |
51 | const char *, void *, size_t); | |
0030e001 TY |
52 | int ocfs2_xattr_set(struct inode *, int, const char *, const void *, |
53 | size_t, int); | |
6c3faba4 TY |
54 | int ocfs2_xattr_set_handle(handle_t *, struct inode *, struct buffer_head *, |
55 | int, const char *, const void *, size_t, int, | |
56 | struct ocfs2_alloc_context *, | |
57 | struct ocfs2_alloc_context *); | |
0030e001 | 58 | int ocfs2_xattr_remove(struct inode *, struct buffer_head *); |
534eaddd TY |
59 | int ocfs2_init_security_get(struct inode *, struct inode *, |
60 | struct ocfs2_security_xattr_info *); | |
61 | int ocfs2_init_security_set(handle_t *, struct inode *, | |
62 | struct buffer_head *, | |
63 | struct ocfs2_security_xattr_info *, | |
64 | struct ocfs2_alloc_context *, | |
65 | struct ocfs2_alloc_context *); | |
66 | int ocfs2_calc_security_init(struct inode *, | |
67 | struct ocfs2_security_xattr_info *, | |
68 | int *, int *, struct ocfs2_alloc_context **); | |
89c38bd0 TY |
69 | int ocfs2_calc_xattr_init(struct inode *, struct buffer_head *, |
70 | int, struct ocfs2_security_xattr_info *, | |
9b7895ef | 71 | int *, int *, int *); |
01225596 | 72 | |
2a50a743 JB |
73 | /* |
74 | * xattrs can live inside an inode, as part of an external xattr block, | |
75 | * or inside an xattr bucket, which is the leaf of a tree rooted in an | |
76 | * xattr block. Some of the xattr calls, especially the value setting | |
77 | * functions, want to treat each of these locations as equal. Let's wrap | |
78 | * them in a structure that we can pass around instead of raw buffer_heads. | |
79 | */ | |
80 | struct ocfs2_xattr_value_buf { | |
81 | struct buffer_head *vb_bh; | |
82 | ocfs2_journal_access_func vb_access; | |
83 | struct ocfs2_xattr_value_root *vb_xv; | |
84 | }; | |
85 | ||
86 | ||
cf1d6c76 | 87 | #endif /* OCFS2_XATTR_H */ |