/* $NetBSD: efiblock.h,v 1.7 2022/04/24 06:49:38 mlelstv Exp $ */
/*-
* Copyright (c) 2018 Jared McNeill <
[email protected]>
* 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 REGENTS 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 REGENTS 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.
*/
#include <sys/queue.h>
#include <sys/bootblock.h>
#include <sys/disklabel.h>
#include <sys/disklabel_gpt.h>
enum efi_block_part_type {
EFI_BLOCK_PART_DISKLABEL,
EFI_BLOCK_PART_GPT,
EFI_BLOCK_PART_CD9660
};
struct efi_block_part;
struct efi_block_dev {
uint16_t index;
EFI_DEVICE_PATH *path;
EFI_BLOCK_IO *bio;
EFI_DISK_IO *dio;
UINT32 media_id;
TAILQ_HEAD(, efi_block_part) partitions;
TAILQ_ENTRY(efi_block_dev) entries;
};
struct efi_block_part_disklabel {
uint32_t secsize;
struct partition part;
};
struct efi_block_part_gpt {
uint8_t fstype;
struct gpt_ent ent;
};
struct efi_block_part {
uint32_t index;
struct efi_block_dev *bdev;
enum efi_block_part_type type;
union {
struct efi_block_part_disklabel disklabel;
struct efi_block_part_gpt gpt;
};
uint8_t hash[16];
TAILQ_ENTRY(efi_block_part) entries;
};
void efi_block_probe(void);
void efi_block_show(void);
struct efi_block_part *efi_block_boot_part(void);
int efi_block_open(struct open_file *, ...);
int efi_block_close(struct open_file *);
int efi_block_ioctl(struct open_file *, u_long, void *);
int efi_block_strategy(void *, int, daddr_t, size_t, void *, size_t *);
void efi_block_set_readahead(bool);
