part.h revision 332956 
1/*-
2 * Copyright (c) 2012 Andrey V. Elsukov <ae@FreeBSD.org>
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 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: stable/11/stand/common/part.h 332956 2018-04-24 18:19:30Z benno $
27 */
28
29#ifndef _PART_H_
30#define	_PART_H_
31
32struct ptable;
33
34enum ptable_type {
35	PTABLE_NONE,
36	PTABLE_BSD,
37	PTABLE_MBR,
38	PTABLE_GPT,
39	PTABLE_VTOC8,
40	PTABLE_ISO9660
41};
42
43enum partition_type {
44	PART_UNKNOWN,
45	PART_EFI,
46	PART_FREEBSD,
47	PART_FREEBSD_BOOT,
48	PART_FREEBSD_NANDFS,
49	PART_FREEBSD_UFS,
50	PART_FREEBSD_ZFS,
51	PART_FREEBSD_SWAP,
52	PART_FREEBSD_VINUM,
53	PART_LINUX,
54	PART_LINUX_SWAP,
55	PART_DOS,
56	PART_ISO9660
57};
58
59struct ptable_entry {
60	uint64_t		start;
61	uint64_t		end;
62	int			index;
63	enum partition_type	type;
64};
65
66/* The offset and size are in sectors */
67typedef int (diskread_t)(void *arg, void *buf, size_t blocks, uint64_t offset);
68typedef int (ptable_iterate_t)(void *arg, const char *partname,
69    const struct ptable_entry *part);
70
71struct ptable *ptable_open(void *dev, uint64_t sectors, uint16_t sectorsize,
72    diskread_t *dread);
73void ptable_close(struct ptable *table);
74enum ptable_type ptable_gettype(const struct ptable *table);
75int ptable_getsize(const struct ptable *table, uint64_t *sizep);
76
77int ptable_getpart(const struct ptable *table, struct ptable_entry *part,
78    int index);
79int ptable_getbestpart(const struct ptable *table, struct ptable_entry *part);
80
81int ptable_iterate(const struct ptable *table, void *arg,
82    ptable_iterate_t *iter);
83const char *parttype2str(enum partition_type type);
84
85#endif	/* !_PART_H_ */
86