1/*-
2 * Copyright (c) 2008 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#ifndef _SYS_DISK_VTOC_H_
30#define	_SYS_DISK_VTOC_H_
31
32#define	VTOC_TAG_UNASSIGNED	0x00
33#define	VTOC_TAG_BOOT		0x01
34#define	VTOC_TAG_ROOT		0x02
35#define	VTOC_TAG_SWAP		0x03
36#define	VTOC_TAG_USR		0x04
37#define	VTOC_TAG_BACKUP		0x05	/* "c" partition */
38#define	VTOC_TAG_STAND		0x06
39#define	VTOC_TAG_VAR		0x07
40#define	VTOC_TAG_HOME		0x08
41#define	VTOC_TAG_ALTSCTR	0x09	/* alternate sector partition */
42#define	VTOC_TAG_CACHE		0x0a	/* Solaris cachefs partition */
43#define	VTOC_TAG_VXVM_PUB	0x0e	/* VxVM public region */
44#define	VTOC_TAG_VXVM_PRIV	0x0f	/* VxVM private region */
45
46/* NetBSD/mips defines this */
47#define	VTOC_TAG_NETBSD_FFS	0xff
48
49/* FreeBSD tags: the high byte equals ELFOSABI_FREEBSD */
50#define	VTOC_TAG_FREEBSD_SWAP	0x0901
51#define	VTOC_TAG_FREEBSD_UFS	0x0902
52#define	VTOC_TAG_FREEBSD_VINUM	0x0903
53#define	VTOC_TAG_FREEBSD_ZFS	0x0904
54#define	VTOC_TAG_FREEBSD_NANDFS	0x0905
55
56#define	VTOC_FLAG_UNMNT		0x01	/* unmountable partition */
57#define	VTOC_FLAG_RDONLY	0x10    /* partition is read/only */
58
59#define	VTOC_ASCII_LEN	128
60#define	VTOC_BOOTSIZE	8192		/* 16 sectors */
61#define	VTOC_MAGIC	0xdabe
62#define	VTOC_RAW_PART	2
63#define	VTOC_SANITY	0x600ddeee
64#define	VTOC_VERSION	1
65#define	VTOC_VOLUME_LEN	8
66
67#define	VTOC8_NPARTS	8
68
69struct vtoc8 {
70	char		ascii[VTOC_ASCII_LEN];
71	uint32_t	version;
72	char		volume[VTOC_VOLUME_LEN];
73	uint16_t	nparts;
74	struct {
75		uint16_t	tag;
76		uint16_t	flag;
77	} part[VTOC8_NPARTS];
78	uint16_t	__alignment;
79	uint32_t	bootinfo[3];
80	uint32_t	sanity;
81	uint32_t	reserved[10];
82	uint32_t	timestamp[VTOC8_NPARTS];
83	uint16_t	wskip;
84	uint16_t	rskip;
85	char		padding[152];
86	uint16_t	rpm;
87	uint16_t	physcyls;
88	uint16_t	sparesecs;
89	uint16_t	spare1[2];
90	uint16_t	interleave;
91	uint16_t	ncyls;
92	uint16_t	altcyls;
93	uint16_t	nheads;
94	uint16_t	nsecs;
95	uint16_t	spare2[2];
96	struct {
97		uint32_t	cyl;
98		uint32_t	nblks;
99	} map[VTOC8_NPARTS];
100	uint16_t	magic;
101	uint16_t	cksum;
102};
103
104#ifdef CTASSERT
105CTASSERT(sizeof(struct vtoc8) == 512);
106#endif
107
108#endif /* _SYS_DISK_VTOC_H_ */
109