xref: /freebsd/usr.bin/mkimg/mkimg.h (revision cc3f4b99653c34ae64f8a1fddea370abefef680e)
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 typedef int64_t	lba_t;
35 
36 struct part {
37 	STAILQ_ENTRY(part) link;
38 	char	*alias;		/* Partition type alias. */
39 	char	*contents;	/* Contents/size specification. */
40 	u_int	kind;		/* Content kind. */
41 #define	PART_UNDEF	0
42 #define	PART_KIND_FILE	1
43 #define	PART_KIND_PIPE	2
44 #define	PART_KIND_SIZE	3
45 	u_int	index;		/* Partition index (0-based). */
46 	uintptr_t type;		/* Scheme-specific partition type. */
47 	lba_t	block;		/* Block-offset of partition in image. */
48 	lba_t	size;		/* Size in blocks of partition. */
49 	char	*label;		/* Partition label. */
50 };
51 
52 extern STAILQ_HEAD(partlisthead, part) partlist;
53 extern u_int nparts;
54 
55 extern u_int verbose;
56 
57 extern u_int ncyls;
58 extern u_int nheads;
59 extern u_int nsecs;
60 extern u_int secsz;	/* Logical block size. */
61 extern u_int blksz;	/* Physical block size. */
62 
63 static inline lba_t
64 round_block(lba_t n)
65 {
66 	lba_t b = blksz / secsz;
67 	return ((n + b - 1) & ~(b - 1));
68 }
69 
70 int mkimg_write(int fd, lba_t blk, void *buf, ssize_t len);
71 
72 #endif /* _MKIMG_MKIMG_H_ */
73