1/*
2 * xattrs.h : definitions related to system extended attributes
3 *
4 * Copyright (c) 2010 Jean-Pierre Andre
5 *
6 * This program/include file is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as published
8 * by the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program/include file is distributed in the hope that it will be
12 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program (in the main directory of the NTFS-3G
18 * distribution in the file COPYING); if not, write to the Free Software
19 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20 */
21
22#ifndef _NTFS_XATTRS_H_
23#define _NTFS_XATTRS_H_
24
25/*
26 * Flags that modify setxattr() semantics.  These flags are also used by a
27 * number of libntfs-3g functions, such as ntfs_set_ntfs_acl(), which were
28 * originally tied to extended attributes support but now can be used by
29 * applications even if the platform does not support extended attributes.
30 *
31 * Careful: applications including this header should define HAVE_SETXATTR or
32 * HAVE_SYS_XATTR_H if the platform supports extended attributes.  Otherwise the
33 * defined flags values may be incorrect (they will be correct for Linux but not
34 * necessarily for other platforms).
35 */
36#if defined(HAVE_SETXATTR) || defined(HAVE_SYS_XATTR_H)
37#include <sys/xattr.h>
38#else
39#include "compat.h" /* may be needed for ENODATA definition */
40#define XATTR_CREATE	1
41#define XATTR_REPLACE	2
42#endif
43
44/*
45 *		Identification of data mapped to the system name space
46 */
47
48enum SYSTEMXATTRS {
49	XATTR_UNMAPPED,
50	XATTR_NTFS_ACL,
51	XATTR_NTFS_ATTRIB,
52	XATTR_NTFS_ATTRIB_BE,
53	XATTR_NTFS_EFSINFO,
54	XATTR_NTFS_REPARSE_DATA,
55	XATTR_NTFS_OBJECT_ID,
56	XATTR_NTFS_DOS_NAME,
57	XATTR_NTFS_TIMES,
58	XATTR_NTFS_TIMES_BE,
59	XATTR_NTFS_CRTIME,
60	XATTR_NTFS_CRTIME_BE,
61	XATTR_NTFS_EA,
62	XATTR_POSIX_ACC,
63	XATTR_POSIX_DEF
64} ;
65
66struct XATTRMAPPING {
67	struct XATTRMAPPING *next;
68	enum SYSTEMXATTRS xattr;
69	char name[1]; /* variable length */
70} ;
71
72#ifdef XATTR_MAPPINGS
73
74struct XATTRMAPPING *ntfs_xattr_build_mapping(ntfs_volume *vol,
75			const char *path);
76void ntfs_xattr_free_mapping(struct XATTRMAPPING*);
77
78#endif /* XATTR_MAPPINGS */
79
80enum SYSTEMXATTRS ntfs_xattr_system_type(const char *name,
81			ntfs_volume *vol);
82
83struct SECURITY_CONTEXT;
84
85int ntfs_xattr_system_getxattr(struct SECURITY_CONTEXT *scx,
86			enum SYSTEMXATTRS attr,
87			ntfs_inode *ni, ntfs_inode *dir_ni,
88			char *value, size_t size);
89int ntfs_xattr_system_setxattr(struct SECURITY_CONTEXT *scx,
90			enum SYSTEMXATTRS attr,
91			ntfs_inode *ni, ntfs_inode *dir_ni,
92			const char *value, size_t size, int flags);
93int ntfs_xattr_system_removexattr(struct SECURITY_CONTEXT *scx,
94			enum SYSTEMXATTRS attr,
95			ntfs_inode *ni, ntfs_inode *dir_ni);
96
97#endif /* _NTFS_XATTRS_H_ */
98