c30dcf40ba
those partitioning schemes that have this concept. Implement it as an override for mbr's setting 0x80 in the flags for the first partition when we have boot code. Differential Revision: https://reviews.freebsd.org/D4403
108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/*-
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* Copyright (c) 2014 Juniper Networks, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MKIMG_MKIMG_H_
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#define _MKIMG_MKIMG_H_
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#include <sys/queue.h>
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#include <sys/types.h>
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struct part {
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TAILQ_ENTRY(part) link;
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char *alias; /* Partition type alias. */
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char *contents; /* Contents/size specification. */
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u_int kind; /* Content kind. */
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#define PART_UNDEF 0
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#define PART_KIND_FILE 1
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#define PART_KIND_PIPE 2
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#define PART_KIND_SIZE 3
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u_int index; /* Partition index (0-based). */
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uintptr_t type; /* Scheme-specific partition type. */
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lba_t block; /* Block-offset of partition in image. */
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lba_t size; /* Size in blocks of partition. */
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char *label; /* Partition label. */
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};
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extern TAILQ_HEAD(partlisthead, part) partlist;
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extern u_int nparts;
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extern u_int unit_testing;
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extern u_int verbose;
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extern u_int ncyls;
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extern u_int nheads;
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extern u_int nsecs;
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extern u_int secsz; /* Logical block size. */
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extern u_int blksz; /* Physical block size. */
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extern uint32_t active_partition;
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static inline lba_t
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round_block(lba_t n)
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{
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lba_t b = blksz / secsz;
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return ((n + b - 1) & ~(b - 1));
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}
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static inline lba_t
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round_cylinder(lba_t n)
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{
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u_int cyl = nsecs * nheads;
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u_int r = n % cyl;
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return ((r == 0) ? n : n + cyl - r);
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}
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static inline lba_t
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round_track(lba_t n)
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{
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u_int r = n % nsecs;
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return ((r == 0) ? n : n + nsecs - r);
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}
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#if !defined(SPARSE_WRITE)
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#define sparse_write write
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#else
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ssize_t sparse_write(int, const void *, size_t);
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#endif
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void mkimg_chs(lba_t, u_int, u_int *, u_int *, u_int *);
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struct mkimg_uuid {
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uint32_t time_low;
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uint16_t time_mid;
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uint16_t time_hi_and_version;
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uint8_t clock_seq_hi_and_reserved;
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uint8_t clock_seq_low;
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uint8_t node[6];
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};
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typedef struct mkimg_uuid mkimg_uuid_t;
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void mkimg_uuid(mkimg_uuid_t *);
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void mkimg_uuid_enc(void *, const mkimg_uuid_t *);
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#endif /* _MKIMG_MKIMG_H_ */
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