summaryrefslogtreecommitdiff
path: root/libparted/fs/xfs/xfs.c
blob: ec38d23e18f78d8d33f2c7ef98843c9d230ed6c2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
/*
    libparted - a library for manipulating disk partitions
    Copyright (C) 2001, 2009-2014, 2019-2022 Free Software Foundation, Inc.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <config.h>

#include <parted/parted.h>
#include <parted/endian.h>

#if ENABLE_NLS
#  include <libintl.h>
#  define _(String) dgettext (PACKAGE, String)
#else
#  define _(String) (String)
#endif /* ENABLE_NLS */

#include <uuid/uuid.h>
#include "platform_defs.h"
#include "xfs_types.h"
#include "xfs_sb.h"

static PedGeometry*
xfs_probe (PedGeometry* geom)
{
	PedSector	block_size;
	PedSector	block_count;
	struct xfs_sb	*sb = alloca (geom->dev->sector_size);

	if (geom->length < XFS_SB_DADDR + 1)
		return NULL;
	if (!ped_geometry_read (geom, sb, XFS_SB_DADDR, 1))
		return NULL;

	if (PED_LE32_TO_CPU (sb->sb_magicnum) == XFS_SB_MAGIC) {
		block_size = PED_LE32_TO_CPU (sb->sb_blocksize) / geom->dev->sector_size;
		block_count = PED_LE64_TO_CPU (sb->sb_dblocks);

		return ped_geometry_new (geom->dev, geom->start,
					 block_size * block_count);
	}

	if (PED_BE32_TO_CPU (sb->sb_magicnum) == XFS_SB_MAGIC) {
		block_size = PED_BE32_TO_CPU (sb->sb_blocksize) / geom->dev->sector_size;
		block_count = PED_BE64_TO_CPU (sb->sb_dblocks);

		geom = ped_geometry_new (geom->dev, geom->start,
					 block_size * block_count);
		return geom;
	}
	return NULL;
}

static PedFileSystemOps xfs_ops = {
	probe:		xfs_probe,
};

static PedFileSystemType xfs_type = {
	next:	NULL,
	ops:	&xfs_ops,
	name:	"xfs",
};

void
ped_file_system_xfs_init ()
{
	ped_file_system_type_register (&xfs_type);
}

void
ped_file_system_xfs_done ()
{
	ped_file_system_type_unregister (&xfs_type);
}