1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * xattr.h |
4 | * |
5 | * Copyright (C) 2004, 2008 Oracle. All rights reserved. |
6 | */ |
7 | |
8 | #ifndef OCFS2_XATTR_H |
9 | #define OCFS2_XATTR_H |
10 | |
11 | #include <linux/init.h> |
12 | #include <linux/xattr.h> |
13 | |
14 | enum ocfs2_xattr_type { |
15 | OCFS2_XATTR_INDEX_USER = 1, |
16 | OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS, |
17 | OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT, |
18 | OCFS2_XATTR_INDEX_TRUSTED, |
19 | OCFS2_XATTR_INDEX_SECURITY, |
20 | OCFS2_XATTR_MAX |
21 | }; |
22 | |
23 | struct ocfs2_security_xattr_info { |
24 | int enable; |
25 | const char *name; |
26 | void *value; |
27 | size_t value_len; |
28 | }; |
29 | |
30 | extern const struct xattr_handler ocfs2_xattr_user_handler; |
31 | extern const struct xattr_handler ocfs2_xattr_trusted_handler; |
32 | extern const struct xattr_handler ocfs2_xattr_security_handler; |
33 | extern const struct xattr_handler * const ocfs2_xattr_handlers[]; |
34 | |
35 | ssize_t ocfs2_listxattr(struct dentry *, char *, size_t); |
36 | int ocfs2_xattr_get_nolock(struct inode *, struct buffer_head *, int, |
37 | const char *, void *, size_t); |
38 | int ocfs2_xattr_set(struct inode *, int, const char *, const void *, |
39 | size_t, int); |
40 | int ocfs2_xattr_set_handle(handle_t *, struct inode *, struct buffer_head *, |
41 | int, const char *, const void *, size_t, int, |
42 | struct ocfs2_alloc_context *, |
43 | struct ocfs2_alloc_context *); |
44 | int ocfs2_has_inline_xattr_value_outside(struct inode *inode, |
45 | struct ocfs2_dinode *di); |
46 | int ocfs2_xattr_remove(struct inode *, struct buffer_head *); |
47 | int ocfs2_init_security_get(struct inode *, struct inode *, |
48 | const struct qstr *, |
49 | struct ocfs2_security_xattr_info *); |
50 | int ocfs2_init_security_set(handle_t *, struct inode *, |
51 | struct buffer_head *, |
52 | struct ocfs2_security_xattr_info *, |
53 | struct ocfs2_alloc_context *, |
54 | struct ocfs2_alloc_context *); |
55 | int ocfs2_calc_security_init(struct inode *, |
56 | struct ocfs2_security_xattr_info *, |
57 | int *, int *, struct ocfs2_alloc_context **); |
58 | int ocfs2_calc_xattr_init(struct inode *, struct buffer_head *, |
59 | umode_t, struct ocfs2_security_xattr_info *, |
60 | int *, int *, int *); |
61 | |
62 | /* |
63 | * xattrs can live inside an inode, as part of an external xattr block, |
64 | * or inside an xattr bucket, which is the leaf of a tree rooted in an |
65 | * xattr block. Some of the xattr calls, especially the value setting |
66 | * functions, want to treat each of these locations as equal. Let's wrap |
67 | * them in a structure that we can pass around instead of raw buffer_heads. |
68 | */ |
69 | struct ocfs2_xattr_value_buf { |
70 | struct buffer_head *vb_bh; |
71 | ocfs2_journal_access_func vb_access; |
72 | struct ocfs2_xattr_value_root *vb_xv; |
73 | }; |
74 | |
75 | int ocfs2_xattr_attach_refcount_tree(struct inode *inode, |
76 | struct buffer_head *fe_bh, |
77 | struct ocfs2_caching_info *ref_ci, |
78 | struct buffer_head *ref_root_bh, |
79 | struct ocfs2_cached_dealloc_ctxt *dealloc); |
80 | int ocfs2_reflink_xattrs(struct inode *old_inode, |
81 | struct buffer_head *old_bh, |
82 | struct inode *new_inode, |
83 | struct buffer_head *new_bh, |
84 | bool preserve_security); |
85 | int ocfs2_init_security_and_acl(struct inode *dir, |
86 | struct inode *inode, |
87 | const struct qstr *qstr); |
88 | #endif /* OCFS2_XATTR_H */ |
89 | |