freebsd-dev/sys/boot/common/part.h
Andrey V. Elsukov a0ff532148 Create the interface to work with various partition tables from the
loader(8). The following partition tables are supported: BSD label, GPT,
MBR, EBR and VTOC8.
2012-08-05 11:29:44 +00:00

83 lines
2.6 KiB
C

/*-
* Copyright (c) 2012 Andrey V. Elsukov <ae@FreeBSD.org>
* 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 AUTHORS 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 AUTHORS 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 _PART_H_
#define _PART_H_
struct ptable;
enum ptable_type {
PTABLE_NONE,
PTABLE_BSD,
PTABLE_MBR,
PTABLE_GPT,
PTABLE_VTOC8
};
enum partition_type {
PART_UNKNOWN,
PART_EFI,
PART_FREEBSD,
PART_FREEBSD_BOOT,
PART_FREEBSD_NANDFS,
PART_FREEBSD_UFS,
PART_FREEBSD_ZFS,
PART_FREEBSD_SWAP,
PART_FREEBSD_VINUM,
PART_LINUX,
PART_LINUX_SWAP,
PART_DOS,
};
struct ptable_entry {
uint64_t start;
uint64_t end;
int index;
enum partition_type type;
};
/* The offset and size are in sectors */
typedef int (diskread_t)(void *arg, void *buf, size_t blocks, off_t offset);
typedef void (ptable_iterate_t)(void *arg, const char *partname,
const struct ptable_entry *part);
struct ptable *ptable_open(void *dev, off_t sectors, uint16_t sectorsize,
diskread_t *dread);
void ptable_close(struct ptable *table);
enum ptable_type ptable_gettype(const struct ptable *table);
int ptable_getpart(const struct ptable *table, struct ptable_entry *part,
int index);
int ptable_getbestpart(const struct ptable *table, struct ptable_entry *part);
void ptable_iterate(const struct ptable *table, void *arg,
ptable_iterate_t *iter);
const char *parttype2str(enum partition_type type);
#endif /* !_PART_H_ */