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
|
/*
* volume_id - reads partition label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* 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 version 2 of the License.
*
* 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, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef _VOLUME_ID_H_
#define _VOLUME_ID_H_
#define VOLUME_ID_VERSION 001
#define VOLUME_ID_LABEL_SIZE 16
#define VOLUME_ID_UUID_SIZE 16
#define VOLUME_ID_UUID_STRING_SIZE 37
#define VOLUME_ID_PATH_MAX 255
enum filesystem_type {
ALL,
EXT2,
EXT3,
REISER,
XFS,
JFS,
MSDOS,
VFAT,
NTFS,
SWAP
};
struct volume_id {
char label[VOLUME_ID_LABEL_SIZE];
char label_string[VOLUME_ID_LABEL_SIZE+1];
unsigned char uuid[VOLUME_ID_UUID_SIZE];
char uuid_string[VOLUME_ID_UUID_STRING_SIZE];
enum filesystem_type fs_type;
char *fs_name;
int fd;
char *buf;
int fd_close;
};
/* open volume by already open file descriptor */
extern struct volume_id *volume_id_open_fd(int fd);
/* open volume by device node */
extern struct volume_id *volume_id_open_node(const char *path);
/* open volume by major/minor */
extern struct volume_id *volume_id_open_dev_t(dev_t devt);
/* probe volume for filesystem type and try to read label/uuid */
extern int volume_id_probe(struct volume_id *id, enum filesystem_type fs_type);
/* free allocated device info */
extern void volume_id_close(struct volume_id *id);
#endif
|
