mkimg.h revision 272030 
1/*-
2 * Copyright (c) 2014 Juniper Networks, Inc.
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 AUTHOR 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 AUTHOR 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/10/usr.bin/mkimg/mkimg.h 272030 2014-09-23 16:05:23Z marcel $
27 */
28
29#ifndef _MKIMG_MKIMG_H_
30#define	_MKIMG_MKIMG_H_
31
32#include <sys/queue.h>
33
34struct part {
35	STAILQ_ENTRY(part) link;
36	char	*alias;		/* Partition type alias. */
37	char	*contents;	/* Contents/size specification. */
38	u_int	kind;		/* Content kind. */
39#define	PART_UNDEF	0
40#define	PART_KIND_FILE	1
41#define	PART_KIND_PIPE	2
42#define	PART_KIND_SIZE	3
43	u_int	index;		/* Partition index (0-based). */
44	uintptr_t type;		/* Scheme-specific partition type. */
45	lba_t	block;		/* Block-offset of partition in image. */
46	lba_t	size;		/* Size in blocks of partition. */
47	char	*label;		/* Partition label. */
48};
49
50extern STAILQ_HEAD(partlisthead, part) partlist;
51extern u_int nparts;
52
53extern u_int unit_testing;
54extern u_int verbose;
55
56extern u_int ncyls;
57extern u_int nheads;
58extern u_int nsecs;
59extern u_int secsz;	/* Logical block size. */
60extern u_int blksz;	/* Physical block size. */
61
62static inline lba_t
63round_block(lba_t n)
64{
65	lba_t b = blksz / secsz;
66	return ((n + b - 1) & ~(b - 1));
67}
68
69static inline lba_t
70round_cylinder(lba_t n)
71{
72	u_int cyl = nsecs * nheads;
73	u_int r = n % cyl;
74	return ((r == 0) ? n : n + cyl - r);
75}
76
77static inline lba_t
78round_track(lba_t n)
79{
80	u_int r = n % nsecs;
81	return ((r == 0) ? n : n + nsecs - r);
82}
83
84#if !defined(SPARSE_WRITE)
85#define	sparse_write	write
86#else
87ssize_t sparse_write(int, const void *, size_t);
88#endif
89
90struct uuid;
91void mkimg_uuid(struct uuid *);
92
93#endif /* _MKIMG_MKIMG_H_ */
94