1/*
2 * volume_id - reads filesystem label and uuid
3 *
4 * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
5 *
6 *	This program is free software; you can redistribute it and/or modify it
7 *	under the terms of the GNU General Public License as published by the
8 *	Free Software Foundation version 2 of the License.
9 */
10
11#ifndef _GNU_SOURCE
12#define _GNU_SOURCE 1
13#endif
14
15#ifdef HAVE_CONFIG_H
16#  include <config.h>
17#endif
18
19#include <stdio.h>
20#include <stdlib.h>
21#include <unistd.h>
22#include <string.h>
23#include <errno.h>
24#include <ctype.h>
25
26#include "libvolume_id.h"
27#include "util.h"
28
29struct hpt37x_meta {
30	uint8_t		filler1[32];
31	uint32_t	magic;
32} PACKED;
33
34struct hpt45x_meta {
35	uint32_t	magic;
36} PACKED;
37
38#define HPT37X_CONFIG_OFF		0x1200
39#define HPT37X_MAGIC_OK			0x5a7816f0
40#define HPT37X_MAGIC_BAD		0x5a7816fd
41
42#define HPT45X_MAGIC_OK			0x5a7816f3
43#define HPT45X_MAGIC_BAD		0x5a7816fd
44
45
46int volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off, uint64_t size)
47{
48	const uint8_t *buf;
49	struct hpt37x_meta *hpt;
50	uint32_t magic;
51
52	info("probing at offset 0x%llx", (unsigned long long) off);
53
54	buf = volume_id_get_buffer(id, off + HPT37X_CONFIG_OFF, 0x200);
55	if (buf == NULL)
56		return -1;
57
58	hpt = (struct hpt37x_meta *) buf;
59	magic = le32_to_cpu(hpt->magic);
60	if (magic != HPT37X_MAGIC_OK && magic != HPT37X_MAGIC_BAD)
61		return -1;
62
63	volume_id_set_usage(id, VOLUME_ID_RAID);
64	id->type = "highpoint_raid_member";
65
66	return 0;
67}
68
69int volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size)
70{
71	const uint8_t *buf;
72	struct hpt45x_meta *hpt;
73	uint64_t meta_off;
74	uint32_t magic;
75
76	dbg("probing at offset 0x%llx, size 0x%llx",
77	    (unsigned long long) off, (unsigned long long) size);
78
79	if (size < 0x10000)
80		return -1;
81
82	meta_off = ((size / 0x200)-11) * 0x200;
83	buf = volume_id_get_buffer(id, off + meta_off, 0x200);
84	if (buf == NULL)
85		return -1;
86
87	hpt = (struct hpt45x_meta *) buf;
88	magic = le32_to_cpu(hpt->magic);
89	if (magic != HPT45X_MAGIC_OK && magic != HPT45X_MAGIC_BAD)
90		return -1;
91
92	volume_id_set_usage(id, VOLUME_ID_RAID);
93	id->type = "highpoint_raid_member";
94
95	return 0;
96}
97