xref: /freebsd/usr.bin/mkimg/mkimg.h (revision 864c53ead899f7838cd2e1cca3b485a4a82f5cdc)
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  * $FreeBSD$
27  */
28 
29 #ifndef _MKIMG_MKIMG_H_
30 #define	_MKIMG_MKIMG_H_
31 
32 #include <sys/queue.h>
33 
34 struct 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 
50 extern STAILQ_HEAD(partlisthead, part) partlist;
51 extern u_int nparts;
52 
53 extern u_int verbose;
54 
55 extern u_int ncyls;
56 extern u_int nheads;
57 extern u_int nsecs;
58 extern u_int secsz;	/* Logical block size. */
59 extern u_int blksz;	/* Physical block size. */
60 
61 static inline lba_t
62 round_block(lba_t n)
63 {
64 	lba_t b = blksz / secsz;
65 	return ((n + b - 1) & ~(b - 1));
66 }
67 
68 #if !defined(SPARSE_WRITE)
69 #define	sparse_write	write
70 #else
71 ssize_t sparse_write(int, const void *, size_t);
72 #endif
73 
74 #endif /* _MKIMG_MKIMG_H_ */
75