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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2012 Nexenta Systems, Inc. All rights reserved.
* Copyright 2016 Toomas Soome <tsoome@me.com>
*/
#ifndef _INSTALLBOOT_H
#define _INSTALLBOOT_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
#include <sys/multiboot.h>
#include <sys/types.h>
#include <sys/queue.h>
#define SECTOR_SIZE (512)
/* partitioning type for device */
typedef enum ib_devtype {
IB_DEV_UNKNOWN = 0,
IB_DEV_VTOC,
IB_DEV_MBR,
IB_DEV_EFI
} ib_devtype_t;
/* file system type */
typedef enum ib_fstype {
IB_FS_NONE = 0,
IB_FS_ZFS,
IB_FS_UFS,
IB_FS_PCFS
} ib_fstype_t;
/* boot block type */
typedef enum ib_bblktype {
IB_BBLK_FILE,
IB_BBLK_MBR, /* MBR/PMBR */
IB_BBLK_STAGE1, /* BIOS stage 1 */
IB_BBLK_STAGE2, /* BIOS stage 2 */
IB_BBLK_EFI /* EFI Boot Program */
} ib_bblktype_t;
/* partition info for boot block location. */
struct stage_part {
char *path; /* device name */
char *mntpnt; /* mountpoint for stage fs */
int id; /* partition/slice number */
ib_devtype_t devtype; /* partitioning type */
ib_fstype_t fstype;
uint16_t tag; /* partition tag */
uint64_t start; /* partition LBA */
uint64_t size; /* partition size */
uint64_t offset; /* block offset */
};
/* boot device data */
typedef struct _ib_device {
ib_devtype_t devtype;
struct stage_part stage; /* location of boot block */
struct stage_part target; /* target file system */
} ib_device_t;
/* stage 2 location */
typedef struct _ib_bootblock {
char *buf;
char *file;
char *extra;
multiboot_header_t *mboot;
uint32_t mboot_off;
uint32_t file_size;
uint32_t buf_size;
uint32_t extra_size;
} ib_bootblock_t;
struct partlist;
struct part_cb {
bool (*read)(struct partlist *);
bool (*read_bbl)(struct partlist *);
bool (*compare)(struct partlist *);
void (*install)(void *, struct partlist *);
void (*print)(struct partlist *);
};
struct partlist {
char *pl_devname;
ib_device_t *pl_device;
/* boot block type */
ib_bblktype_t pl_type;
/* stage from target disk, either stage1 or stage2 */
void *pl_stage;
/* name of the source file */
const char *pl_src_name;
/* stage data from source file. */
void *pl_src_data;
struct part_cb pl_cb;
STAILQ_ENTRY(partlist) pl_next;
};
typedef STAILQ_HEAD(part_list, partlist) part_list_t;
typedef struct _ib_data {
ib_device_t device; /* boot device */
ib_bootblock_t bootblock; /* stage 2 */
struct stage_part target; /* target file system */
part_list_t *plist; /* boot blocks */
} ib_data_t;
#define BBLK_BLKLIST_OFF 50 /* vtoc/disk boot offset */
#define BBLK_ZFS_BLK_OFF 1024 /* vdev boot offset */
#define BBLK_ZFS_BLK_SIZE (7ULL << 19) /* vdev max boot size */
/* locations of MBR parts, must be reviewd if mbr code is changed */
#define STAGE1_BPB_OFFSET (0x3) /* technically BPB starts at 0xb */
#define STAGE1_BPB_SIZE (0x3b)
#define STAGE1_MBR_VERSION (0xfa) /* 2 bytes, not used */
#define STAGE1_STAGE2_SIZE (0xfc) /* 16bits */
#define STAGE1_STAGE2_LBA (0xfe) /* 64bits */
#define STAGE1_STAGE2_UUID (0x106) /* 128bits */
#define STAGE1_SIG (0x1b8) /* 4+2 bytes */
#define STAGE1_PARTTBL (0x1be) /* MBR partition table */
#define STAGE1_MAGIC (0x1fe) /* 0xAA55 */
#ifdef __cplusplus
}
#endif
#endif /* _INSTALLBOOT_H */
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