1/*
2 * volume_id - reads filesystem label and uuid
3 *
4 * Copyright (C) 2006 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 adaptec_meta {
30	uint32_t	b0idcode;
31	uint8_t		lunsave[8];
32	uint16_t	sdtype;
33	uint16_t	ssavecyl;
34	uint8_t		ssavehed;
35	uint8_t		ssavesec;
36	uint8_t		sb0flags;
37	uint8_t		jbodEnable;
38	uint8_t		lundsave;
39	uint8_t		svpdirty;
40	uint16_t	biosInfo;
41	uint16_t	svwbskip;
42	uint16_t	svwbcln;
43	uint16_t	svwbmax;
44	uint16_t	res3;
45	uint16_t	svwbmin;
46	uint16_t	res4;
47	uint16_t	svrcacth;
48	uint16_t	svwcacth;
49	uint16_t	svwbdly;
50	uint8_t		svsdtime;
51	uint8_t		res5;
52	uint16_t	firmval;
53	uint16_t	firmbln;
54	uint32_t	firmblk;
55	uint32_t	fstrsvrb;
56	uint16_t	svBlockStorageTid;
57	uint16_t	svtid;
58	uint8_t		svseccfl;
59	uint8_t		res6;
60	uint8_t		svhbanum;
61	uint8_t		resver;
62	uint32_t	drivemagic;
63	uint8_t		reserved[20];
64	uint8_t		testnum;
65	uint8_t		testflags;
66	uint16_t	maxErrorCount;
67	uint32_t	count;
68	uint32_t	startTime;
69	uint32_t	interval;
70	uint8_t		tstxt0;
71	uint8_t		tstxt1;
72	uint8_t		serNum[32];
73	uint8_t		res8[102];
74	uint32_t	fwTestMagic;
75	uint32_t	fwTestSeqNum;
76	uint8_t		fwTestRes[8];
77	uint8_t		smagic[4];
78	uint32_t	raidtbl;
79	uint16_t	raidline;
80	uint8_t		res9[0xF6];
81} PACKED;
82
83int volume_id_probe_adaptec_raid(struct volume_id *id, uint64_t off, uint64_t size)
84{
85	const uint8_t *buf;
86	uint64_t meta_off;
87	struct adaptec_meta *ad;
88
89	info("probing at offset 0x%llx, size 0x%llx",
90	    (unsigned long long) off, (unsigned long long) size);
91
92	if (size < 0x10000)
93		return -1;
94
95	meta_off = ((size / 0x200)-1) * 0x200;
96	buf = volume_id_get_buffer(id, off + meta_off, 0x200);
97	if (buf == NULL)
98		return -1;
99
100	ad = (struct adaptec_meta *) buf;
101	if (memcmp(ad->smagic, "DPTM", 4) != 0)
102		return -1;
103
104	if (ad->b0idcode != be32_to_cpu(0x37FC4D1E))
105		return -1;
106
107	volume_id_set_usage(id, VOLUME_ID_RAID);
108	snprintf(id->type_version, sizeof(id->type_version)-1, "%u", ad->resver);
109	id->type = "adaptec_raid_member";
110
111	return 0;
112}
113