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 #include <time.h>
33
34 extern time_t timestamp;
35
36 struct part {
37 TAILQ_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 TAILQ_HEAD(partlisthead, part) partlist;
53 extern u_int nparts;
54
55 extern u_int unit_testing;
56 extern u_int verbose;
57
58 extern u_int ncyls;
59 extern u_int nheads;
60 extern u_int nsecs;
61 extern u_int secsz; /* Logical block size. */
62 extern u_int blksz; /* Physical block size. */
63 extern uint32_t active_partition;
64
65 static inline lba_t
round_block(lba_t n)66 round_block(lba_t n)
67 {
68 lba_t b = blksz / secsz;
69 return ((n + b - 1) & ~(b - 1));
70 }
71
72 static inline lba_t
round_cylinder(lba_t n)73 round_cylinder(lba_t n)
74 {
75 u_int cyl = nsecs * nheads;
76 u_int r = n % cyl;
77 return ((r == 0) ? n : n + cyl - r);
78 }
79
80 static inline lba_t
round_track(lba_t n)81 round_track(lba_t n)
82 {
83 u_int r = n % nsecs;
84 return ((r == 0) ? n : n + nsecs - r);
85 }
86
87 #if !defined(SPARSE_WRITE)
88 #define sparse_write write
89 #else
90 ssize_t sparse_write(int, const void *, size_t);
91 #endif
92
93 void mkimg_chs(lba_t, u_int, u_int *, u_int *, u_int *);
94
95 struct mkimg_uuid {
96 uint32_t time_low;
97 uint16_t time_mid;
98 uint16_t time_hi_and_version;
99 uint8_t clock_seq_hi_and_reserved;
100 uint8_t clock_seq_low;
101 uint8_t node[6];
102 };
103 typedef struct mkimg_uuid mkimg_uuid_t;
104
105 void mkimg_uuid(mkimg_uuid_t *);
106 void mkimg_uuid_enc(void *, const mkimg_uuid_t *);
107
108 #ifdef __linux__
109 # if !defined(__unused)
110 # define __unused __attribute__ ((__unused__))
111 # endif
112 #endif
113
114 #endif /* _MKIMG_MKIMG_H_ */
115