mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
2c83b36f45
cylinder, head and track numbers. Return ~0U for these values when mkimg wasn't given both -T and -H (i.e. no geometry) or the cylinder would be larger than the provided maximum. Use mkimgs_chs() for the EBR, MBR and PC98 schemes to fill in the appropriate fields. Make sure to use a "rounded" size so that the partition is always a multiple of the track size. We reserved the room for it in the metadata callback so that's a valid thing to do. Bump the mkimg version number. While doing that again: have mkimg.o depend on the Makefile so that a version change triggers a rebuild as needed.
96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/*-
|
|
* Copyright (c) 2014 Juniper Networks, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MKIMG_MKIMG_H_
|
|
#define _MKIMG_MKIMG_H_
|
|
|
|
#include <sys/queue.h>
|
|
|
|
struct part {
|
|
STAILQ_ENTRY(part) link;
|
|
char *alias; /* Partition type alias. */
|
|
char *contents; /* Contents/size specification. */
|
|
u_int kind; /* Content kind. */
|
|
#define PART_UNDEF 0
|
|
#define PART_KIND_FILE 1
|
|
#define PART_KIND_PIPE 2
|
|
#define PART_KIND_SIZE 3
|
|
u_int index; /* Partition index (0-based). */
|
|
uintptr_t type; /* Scheme-specific partition type. */
|
|
lba_t block; /* Block-offset of partition in image. */
|
|
lba_t size; /* Size in blocks of partition. */
|
|
char *label; /* Partition label. */
|
|
};
|
|
|
|
extern STAILQ_HEAD(partlisthead, part) partlist;
|
|
extern u_int nparts;
|
|
|
|
extern u_int unit_testing;
|
|
extern u_int verbose;
|
|
|
|
extern u_int ncyls;
|
|
extern u_int nheads;
|
|
extern u_int nsecs;
|
|
extern u_int secsz; /* Logical block size. */
|
|
extern u_int blksz; /* Physical block size. */
|
|
|
|
static inline lba_t
|
|
round_block(lba_t n)
|
|
{
|
|
lba_t b = blksz / secsz;
|
|
return ((n + b - 1) & ~(b - 1));
|
|
}
|
|
|
|
static inline lba_t
|
|
round_cylinder(lba_t n)
|
|
{
|
|
u_int cyl = nsecs * nheads;
|
|
u_int r = n % cyl;
|
|
return ((r == 0) ? n : n + cyl - r);
|
|
}
|
|
|
|
static inline lba_t
|
|
round_track(lba_t n)
|
|
{
|
|
u_int r = n % nsecs;
|
|
return ((r == 0) ? n : n + nsecs - r);
|
|
}
|
|
|
|
#if !defined(SPARSE_WRITE)
|
|
#define sparse_write write
|
|
#else
|
|
ssize_t sparse_write(int, const void *, size_t);
|
|
#endif
|
|
|
|
void mkimg_chs(lba_t, u_int, u_int *, u_int *, u_int *);
|
|
|
|
struct uuid;
|
|
void mkimg_uuid(struct uuid *);
|
|
|
|
#endif /* _MKIMG_MKIMG_H_ */
|