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
|
/*
* Copyright (C) 2008 Karel Zak <kzak@redhat.com>
*
* Inspired by libvolume_id by
* Kay Sievers <kay.sievers@vrfy.org>
*
* This file may be redistributed under the terms of the
* GNU Lesser General Public License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdint.h>
#include "superblocks.h"
struct isw_metadata {
uint8_t sig[32];
uint32_t check_sum;
uint32_t mpb_size;
uint32_t family_num;
uint32_t generation_num;
};
#define ISW_SIGNATURE "Intel Raid ISM Cfg Sig. "
static int probe_iswraid(blkid_probe pr,
const struct blkid_idmag *mag __attribute__((__unused__)))
{
uint64_t off;
unsigned int sector_size;
struct isw_metadata *isw;
if (pr->size < 0x10000)
return 1;
if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))
return 1;
sector_size = blkid_probe_get_sectorsize(pr);
off = ((pr->size / sector_size) - 2) * sector_size;
isw = (struct isw_metadata *)blkid_probe_get_buffer(pr,
off, sizeof(struct isw_metadata));
if (!isw)
return errno ? -errno : 1;
if (memcmp(isw->sig, ISW_SIGNATURE, sizeof(ISW_SIGNATURE)-1) != 0)
return 1;
if (blkid_probe_sprintf_version(pr, "%6s",
&isw->sig[sizeof(ISW_SIGNATURE)-1]) != 0)
return 1;
if (blkid_probe_set_magic(pr, off, sizeof(isw->sig),
(unsigned char *) isw->sig))
return 1;
return 0;
}
const struct blkid_idinfo iswraid_idinfo = {
.name = "isw_raid_member",
.usage = BLKID_USAGE_RAID,
.probefunc = probe_iswraid,
.magics = BLKID_NONE_MAGIC
};
|
