459a61fd2d
To create hybrid boot media we want to specify a partition at a known location. This extends the syntax of size partitions to include an optional offset that can be absolute or relative. It also introduces validation to make sure that this hasn't resulted in overlapping partitions. I haven't added this to the file and process partition specifications yet but the mechanics are designed such that if someone comes up with a good way of specifying the offset it will be fairly easy to add in. Reviewed by: imp Sponsored by: iXsystems, Inc. Differential Revision: https://reviews.freebsd.org/D14916
97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/*-
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* Copyright (c) 2013,2014 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_SCHEME_H_
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#define _MKIMG_SCHEME_H_
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enum alias {
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ALIAS_NONE, /* Keep first! */
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/* start */
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ALIAS_EBR,
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ALIAS_EFI,
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ALIAS_FAT16B,
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ALIAS_FAT32,
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ALIAS_FREEBSD,
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ALIAS_FREEBSD_BOOT,
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ALIAS_FREEBSD_NANDFS,
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ALIAS_FREEBSD_SWAP,
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ALIAS_FREEBSD_UFS,
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ALIAS_FREEBSD_VINUM,
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ALIAS_FREEBSD_ZFS,
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ALIAS_MBR,
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ALIAS_NTFS,
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ALIAS_PPCBOOT,
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/* end */
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ALIAS_COUNT /* Keep last! */
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};
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struct mkimg_alias {
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u_int alias;
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uintptr_t type;
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#define ALIAS_PTR2TYPE(p) (uintptr_t)(p)
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#define ALIAS_INT2TYPE(i) (i)
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#define ALIAS_TYPE2PTR(p) (void *)(p)
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#define ALIAS_TYPE2INT(i) (i)
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};
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struct mkimg_scheme {
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struct mkimg_scheme *next;
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const char *name;
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const char *description;
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struct mkimg_alias *aliases;
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lba_t (*metadata)(u_int, lba_t);
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#define SCHEME_META_IMG_START 1
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#define SCHEME_META_IMG_END 2
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#define SCHEME_META_PART_BEFORE 3
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#define SCHEME_META_PART_AFTER 4
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#define SCHEME_META_PART_ABSOLUTE 5
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int (*write)(lba_t, void *);
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u_int nparts;
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u_int labellen;
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u_int bootcode;
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u_int maxsecsz;
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};
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#define SCHEME_DEFINE(nm) \
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static void scheme_register_##nm(void) __attribute__((constructor)); \
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static void scheme_register_##nm(void) { scheme_register(&nm); }
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struct mkimg_scheme *scheme_iterate(struct mkimg_scheme *);
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void scheme_register(struct mkimg_scheme *);
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int scheme_select(const char *);
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struct mkimg_scheme *scheme_selected(void);
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int scheme_bootcode(int fd);
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int scheme_check_part(struct part *);
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u_int scheme_max_parts(void);
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u_int scheme_max_secsz(void);
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lba_t scheme_metadata(u_int, lba_t);
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int scheme_write(lba_t);
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#endif /* _MKIMG_SCHEME_H_ */
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