1 /* SPDX-License-Identifier: GPL-2.0-only */ 1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* !! 2 /* -*- mode: c; c-basic-offset: 8; -*-
>> 3 * vim: noexpandtab sw=8 ts=8 sts=0:
>> 4 *
3 * xattr.h 5 * xattr.h
4 * 6 *
5 * Copyright (C) 2004, 2008 Oracle. All right 7 * Copyright (C) 2004, 2008 Oracle. All rights reserved.
6 */ 8 */
7 9
8 #ifndef OCFS2_XATTR_H 10 #ifndef OCFS2_XATTR_H
9 #define OCFS2_XATTR_H 11 #define OCFS2_XATTR_H
10 12
11 #include <linux/init.h> 13 #include <linux/init.h>
12 #include <linux/xattr.h> 14 #include <linux/xattr.h>
13 15
14 enum ocfs2_xattr_type { 16 enum ocfs2_xattr_type {
15 OCFS2_XATTR_INDEX_USER = 1, 17 OCFS2_XATTR_INDEX_USER = 1,
16 OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS, 18 OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS,
17 OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT, 19 OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT,
18 OCFS2_XATTR_INDEX_TRUSTED, 20 OCFS2_XATTR_INDEX_TRUSTED,
19 OCFS2_XATTR_INDEX_SECURITY, 21 OCFS2_XATTR_INDEX_SECURITY,
20 OCFS2_XATTR_MAX 22 OCFS2_XATTR_MAX
21 }; 23 };
22 24
23 struct ocfs2_security_xattr_info { 25 struct ocfs2_security_xattr_info {
24 int enable; 26 int enable;
25 const char *name; 27 const char *name;
26 void *value; 28 void *value;
27 size_t value_len; 29 size_t value_len;
28 }; 30 };
29 31
30 extern const struct xattr_handler ocfs2_xattr_ 32 extern const struct xattr_handler ocfs2_xattr_user_handler;
31 extern const struct xattr_handler ocfs2_xattr_ 33 extern const struct xattr_handler ocfs2_xattr_trusted_handler;
32 extern const struct xattr_handler ocfs2_xattr_ 34 extern const struct xattr_handler ocfs2_xattr_security_handler;
33 extern const struct xattr_handler * const ocfs !! 35 extern const struct xattr_handler *ocfs2_xattr_handlers[];
34 36
35 ssize_t ocfs2_listxattr(struct dentry *, char 37 ssize_t ocfs2_listxattr(struct dentry *, char *, size_t);
36 int ocfs2_xattr_get_nolock(struct inode *, str 38 int ocfs2_xattr_get_nolock(struct inode *, struct buffer_head *, int,
37 const char *, void 39 const char *, void *, size_t);
38 int ocfs2_xattr_set(struct inode *, int, const 40 int ocfs2_xattr_set(struct inode *, int, const char *, const void *,
39 size_t, int); 41 size_t, int);
40 int ocfs2_xattr_set_handle(handle_t *, struct 42 int ocfs2_xattr_set_handle(handle_t *, struct inode *, struct buffer_head *,
41 int, const char *, 43 int, const char *, const void *, size_t, int,
42 struct ocfs2_alloc_ 44 struct ocfs2_alloc_context *,
43 struct ocfs2_alloc_ 45 struct ocfs2_alloc_context *);
44 int ocfs2_has_inline_xattr_value_outside(struc 46 int ocfs2_has_inline_xattr_value_outside(struct inode *inode,
45 struc 47 struct ocfs2_dinode *di);
46 int ocfs2_xattr_remove(struct inode *, struct 48 int ocfs2_xattr_remove(struct inode *, struct buffer_head *);
47 int ocfs2_init_security_get(struct inode *, st 49 int ocfs2_init_security_get(struct inode *, struct inode *,
48 const struct qstr 50 const struct qstr *,
49 struct ocfs2_secur 51 struct ocfs2_security_xattr_info *);
50 int ocfs2_init_security_set(handle_t *, struct 52 int ocfs2_init_security_set(handle_t *, struct inode *,
51 struct buffer_head 53 struct buffer_head *,
52 struct ocfs2_secur 54 struct ocfs2_security_xattr_info *,
53 struct ocfs2_alloc 55 struct ocfs2_alloc_context *,
54 struct ocfs2_alloc 56 struct ocfs2_alloc_context *);
55 int ocfs2_calc_security_init(struct inode *, 57 int ocfs2_calc_security_init(struct inode *,
56 struct ocfs2_secu 58 struct ocfs2_security_xattr_info *,
57 int *, int *, str 59 int *, int *, struct ocfs2_alloc_context **);
58 int ocfs2_calc_xattr_init(struct inode *, stru 60 int ocfs2_calc_xattr_init(struct inode *, struct buffer_head *,
59 umode_t, struct ocfs 61 umode_t, struct ocfs2_security_xattr_info *,
60 int *, int *, int *) 62 int *, int *, int *);
61 63
62 /* 64 /*
63 * xattrs can live inside an inode, as part of 65 * xattrs can live inside an inode, as part of an external xattr block,
64 * or inside an xattr bucket, which is the lea 66 * or inside an xattr bucket, which is the leaf of a tree rooted in an
65 * xattr block. Some of the xattr calls, espe 67 * xattr block. Some of the xattr calls, especially the value setting
66 * functions, want to treat each of these loca 68 * functions, want to treat each of these locations as equal. Let's wrap
67 * them in a structure that we can pass around 69 * them in a structure that we can pass around instead of raw buffer_heads.
68 */ 70 */
69 struct ocfs2_xattr_value_buf { 71 struct ocfs2_xattr_value_buf {
70 struct buffer_head *vb_bh 72 struct buffer_head *vb_bh;
71 ocfs2_journal_access_func vb_acc 73 ocfs2_journal_access_func vb_access;
72 struct ocfs2_xattr_value_root *vb_xv 74 struct ocfs2_xattr_value_root *vb_xv;
73 }; 75 };
74 76
75 int ocfs2_xattr_attach_refcount_tree(struct in 77 int ocfs2_xattr_attach_refcount_tree(struct inode *inode,
76 struct bu 78 struct buffer_head *fe_bh,
77 struct oc 79 struct ocfs2_caching_info *ref_ci,
78 struct bu 80 struct buffer_head *ref_root_bh,
79 struct oc 81 struct ocfs2_cached_dealloc_ctxt *dealloc);
80 int ocfs2_reflink_xattrs(struct inode *old_ino 82 int ocfs2_reflink_xattrs(struct inode *old_inode,
81 struct buffer_head *o 83 struct buffer_head *old_bh,
82 struct inode *new_ino 84 struct inode *new_inode,
83 struct buffer_head *n 85 struct buffer_head *new_bh,
84 bool preserve_securit 86 bool preserve_security);
85 int ocfs2_init_security_and_acl(struct inode * 87 int ocfs2_init_security_and_acl(struct inode *dir,
86 struct inode * 88 struct inode *inode,
87 const struct q 89 const struct qstr *qstr);
88 #endif /* OCFS2_XATTR_H */ 90 #endif /* OCFS2_XATTR_H */
89 91
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.