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
27 #ifndef _MKIMG_MKIMG_H_
28 #define _MKIMG_MKIMG_H_
29
30 #include <sys/queue.h>
31 #include <sys/types.h>
32
33 struct part {
34 TAILQ_ENTRY(part) link;
35 char *alias; /* Partition type alias. */
36 char *contents; /* Contents/size specification. */
37 u_int kind; /* Content kind. */
38 #define PART_UNDEF 0
39 #define PART_KIND_FILE 1
40 #define PART_KIND_PIPE 2
41 #define PART_KIND_SIZE 3
42 u_int index; /* Partition index (0-based). */
43 uintptr_t type; /* Scheme-specific partition type. */
44 lba_t block; /* Block-offset of partition in image. */
45 lba_t size; /* Size in blocks of partition. */
46 char *label; /* Partition label. */
47 };
48
49 extern TAILQ_HEAD(partlisthead, part) partlist;
50 extern u_int nparts;
51
52 extern u_int unit_testing;
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 extern uint32_t active_partition;
61
62 static inline lba_t
round_block(lba_t n)63 round_block(lba_t n)
64 {
65 lba_t b = blksz / secsz;
66 return ((n + b - 1) & ~(b - 1));
67 }
68
69 static inline lba_t
round_cylinder(lba_t n)70 round_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
77 static inline lba_t
round_track(lba_t n)78 round_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
87 ssize_t sparse_write(int, const void *, size_t);
88 #endif
89
90 void mkimg_chs(lba_t, u_int, u_int *, u_int *, u_int *);
91
92 struct mkimg_uuid {
93 uint32_t time_low;
94 uint16_t time_mid;
95 uint16_t time_hi_and_version;
96 uint8_t clock_seq_hi_and_reserved;
97 uint8_t clock_seq_low;
98 uint8_t node[6];
99 };
100 typedef struct mkimg_uuid mkimg_uuid_t;
101
102 void mkimg_uuid(mkimg_uuid_t *);
103 void mkimg_uuid_enc(void *, const mkimg_uuid_t *);
104
105 #ifdef __linux__
106 # if !defined(__unused)
107 # define __unused __attribute__ ((__unused__))
108 # endif
109 #endif
110
111 #endif /* _MKIMG_MKIMG_H_ */
112