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
29#define NW_SUPERBLOCK_OFFSET			0x1000
30
31struct netware_super_block {
32	uint8_t		SBH_Signature[4];
33	uint16_t	SBH_VersionMajor;
34	uint16_t	SBH_VersionMinor;
35	uint16_t	SBH_VersionMediaMajor;
36	uint16_t	SBH_VersionMediaMinor;
37	uint32_t	SBH_ItemsMoved;
38	uint8_t		SBH_InternalID[16];
39	uint32_t	SBH_PackedSize;
40	uint32_t	SBH_Checksum;
41	uint32_t	supersyncid;
42	int64_t		superlocation[4];
43	uint32_t	physSizeUsed;
44	uint32_t	sizeUsed;
45	uint32_t	superTimeStamp;
46	uint32_t	reserved0[1];
47	int64_t		SBH_LoggedPoolDataBlk;
48	int64_t		SBH_PoolDataBlk;
49	uint8_t		SBH_OldInternalID[16];
50	uint32_t	SBH_PoolToLVStartUTC;
51	uint32_t	SBH_PoolToLVEndUTC;
52	uint16_t	SBH_VersionMediaMajorCreate;
53	uint16_t	SBH_VersionMediaMinorCreate;
54	uint32_t	SBH_BlocksMoved;
55	uint32_t	SBH_TempBTSpBlk;
56	uint32_t	SBH_TempFTSpBlk;
57	uint32_t	SBH_TempFTSpBlk1;
58	uint32_t	SBH_TempFTSpBlk2;
59	uint32_t 	nssMagicNumber;
60	uint32_t	poolClassID;
61	uint32_t 	poolID;
62	uint32_t	createTime;
63	int64_t		SBH_LoggedVolumeDataBlk;
64	int64_t		SBH_VolumeDataBlk;
65	int64_t		SBH_SystemBeastBlkNum;
66	uint64_t	totalblocks;
67	uint16_t 	SBH_Name[64];
68	uint8_t		SBH_VolumeID[16];
69	uint8_t		SBH_PoolID[16];
70	uint8_t		SBH_PoolInternalID[16];
71	uint64_t	SBH_Lsn;
72	uint32_t	SBH_SS_Enabled;
73	uint32_t	SBH_SS_CreateTime;
74	uint8_t		SBH_SS_OriginalPoolID[16];
75	uint8_t		SBH_SS_OriginalVolumeID[16];
76	uint8_t		SBH_SS_Guid[16];
77	uint16_t	SBH_SS_OriginalName[64];
78	uint32_t	reserved2[64-(2+46)];
79} PACKED;
80
81int volume_id_probe_netware(struct volume_id *id, uint64_t off, uint64_t size)
82{
83	struct netware_super_block *nw;
84
85	info("probing at offset 0x%llx", (unsigned long long) off);
86
87	nw = (struct netware_super_block *) volume_id_get_buffer(id, off + NW_SUPERBLOCK_OFFSET, 0x200);
88	if (nw == NULL)
89		return -1;
90
91	if (memcmp(nw->SBH_Signature, "SPB5", 4) != 0)
92		return -1;
93
94	volume_id_set_uuid(id, nw->SBH_PoolID, 0, UUID_DCE);
95
96	snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%02u",
97		 le16_to_cpu(nw->SBH_VersionMediaMajor), le16_to_cpu(nw->SBH_VersionMediaMinor));
98
99	volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
100	id->type = "nss";
101
102	return 0;
103}
104