/* $NetBSD: bootblock.h,v 1.24 2004/03/22 07:11:00 lukem Exp $ */
/*-
* Copyright (c) 2002-2004 The NetBSD Foundation, Inc.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*-
* Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
* Michael L. Finch, Bradley A. Grantham, and
* Lawrence A. Kesteloot
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Alice Group.
* 4. The names of the Alice Group or any of its members may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``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 ALICE GROUP 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.
*
*/
/*
* Copyright (c) 1994, 1999 Christopher G. Demetriou
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christopher G. Demetriou
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* Copyright (c) 1994 Rolf Grossmann
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Rolf Grossmann.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#ifndef _SYS_BOOTBLOCK_H
#define _SYS_BOOTBLOCK_H
#include "type.h"
#if 0 /* XXX ffsdrv */
#if !defined(__ASSEMBLER__)
#if defined(_KERNEL) || defined(_STANDALONE)
#include <sys/stdint.h>
#else
#include <stdint.h>
#endif
#endif /* !defined(__ASSEMBLER__) */
#endif
/* ------------------------------------------
* MBR (Master Boot Record) --
* definitions for systems that use MBRs
*/
/*
* Layout of boot records:
*
* Byte range Use Description
* ---------- --- -----------
*
* 0 - 2 FMP JMP xxx, NOP
* 3 - 10 FP OEM Name
*
* 11 - 61 FMP FAT12/16 BPB
* Whilst not strictly necessary for MBR,
* GRUB reserves this area
*
* 11 - 89 P FAT32 BPB
* (are we ever going to boot off this?)
*
*
* 62 - 217 FMP Boot code
*
* 90 - 217 P FAT32 boot code
*
* 218 - 223 M Win95b/98/me "drive time"
* http://www.geocities.com/thestarman3/asm/mbr/95BMEMBR.htm#MYST
* only changed if all 6 bytes are 0
*
* 224 - 436 FMP boot code (continued)
*
* 437 - 439 M WinNT/2K/XP MBR "boot language"
* http://www.geocities.com/thestarman3/asm/mbr/Win2kmbr.htm
* not needed by us
*
* 400 - 439 MP NetBSD: mbr_bootsel
*
* 440 - 443 M WinNT/2K/XP Drive Serial Number (NT DSN)
* http://www.geocities.com/thestarman3/asm/mbr/Win2kmbr.htm
*
* 444 - 445 FMP bootcode or unused
* NetBSD: mbr_bootsel_magic
*
* 446 - 509 M partition table
*
* 510 - 511 FMP magic number (0xAA55)
*
* Use:
* ----
* F Floppy boot sector
* M Master Boot Record
* P Partition Boot record
*
*/
/*
* MBR (Master Boot Record)
*/
#define MBR_BBSECTOR 0 /* MBR relative sector # */
#define MBR_BPB_OFFSET 11 /* offsetof(mbr_sector, mbr_bpb) */
#define MBR_BOOTCODE_OFFSET 90 /* offsetof(mbr_sector, mbr_bootcode) */
#define MBR_BS_OFFSET 400 /* offsetof(mbr_sector, mbr_bootsel) */
#define MBR_DSN_OFFSET 440 /* offsetof(mbr_sector, mbr_dsn) */
#define MBR_BS_MAGIC_OFFSET 444 /* offsetof(mbr_sector, mbr_bootsel_magic) */
#define MBR_PART_OFFSET 446 /* offsetof(mbr_sector, mbr_part[0]) */
#define MBR_MAGIC_OFFSET 510 /* offsetof(mbr_sector, mbr_magic) */
#define MBR_MAGIC 0xaa55 /* MBR magic number */
#define MBR_BS_MAGIC 0xb5e1 /* mbr_bootsel magic number */
#define MBR_PART_COUNT 4 /* Number of partitions in MBR */
#define MBR_BS_PARTNAMESIZE 8 /* Size of name mbr_bootsel nametab */
/* (excluding trailing NUL) */
/* values for mbr_partition.mbrp_flag */
#define MBR_PFLAG_ACTIVE 0x80 /* The active partition */
/* values for mbr_partition.mbrp_type */
#define MBR_PTYPE_FAT12 0x01 /* 12-bit FAT */
#define MBR_PTYPE_FAT16S 0x04 /* 16-bit FAT, less than 32M */
#define MBR_PTYPE_EXT 0x05 /* extended partition */
#define MBR_PTYPE_FAT16B 0x06 /* 16-bit FAT, more than 32M */
#define MBR_PTYPE_NTFS 0x07 /* OS/2 HPFS, NTFS, QNX2, Adv. UNIX */
#define MBR_PTYPE_FAT32 0x0b /* 32-bit FAT */
#define MBR_PTYPE_FAT32L 0x0c /* 32-bit FAT, LBA-mapped */
#define MBR_PTYPE_FAT16L 0x0e /* 16-bit FAT, LBA-mapped */
#define MBR_PTYPE_EXT_LBA 0x0f /* extended partition, LBA-mapped */
#define MBR_PTYPE_ONTRACK 0x54
#define MBR_PTYPE_LNXSWAP 0x82 /* Linux swap or Solaris */
#define MBR_PTYPE_LNXEXT2 0x83 /* Linux native */
#define MBR_PTYPE_EXT_LNX 0x85 /* Linux extended partition */
#define MBR_PTYPE_NTFSVOL 0x87 /* NTFS volume set or HPFS mirrored */
#define MBR_PTYPE_PREP 0x41 /* PReP */
#define MBR_PTYPE_386BSD 0xa5 /* 386BSD partition type */
#define MBR_PTYPE_APPLEUFS 0xa8 /* Apple UFS */
#define MBR_PTYPE_NETBSD 0xa9 /* NetBSD partition type */
#define MBR_PTYPE_OPENBSD 0xa6 /* OpenBSD partition type */
#define MBR_PSECT(s) ((s) & 0x3f)
#define MBR_PCYL(c, s) ((c) + (((s) & 0xc0) << 2))
#define MBR_IS_EXTENDED(x) ((x) == MBR_PTYPE_EXT || \
(x) == MBR_PTYPE_EXT_LBA || \
(x) == MBR_PTYPE_EXT_LNX)
/* values for mbr_bootsel.mbrbs_flags */
#define MBR_BS_ACTIVE 0x01 /* Bootselector active (or code present) */
#define MBR_BS_EXTINT13 0x02 /* Set by fdisk if LBA needed (deprecated) */
#define MBR_BS_READ_LBA 0x04 /* Force LBA reads - even for low numbers */
#define MBR_BS_EXTLBA 0x08 /* Extended ptn capable (LBA reads) */
#define MBR_BS_NEWMBR 0x80 /* New bootsel at offset 440 */
#if !defined(__ASSEMBLER__) /* { */
#pragma pack(1)
/*
* (x86) BIOS Parameter Block for FAT12
*/
struct mbr_bpbFAT12 {
uint16_t bpbBytesPerSec; /* bytes per sector */
uint8_t bpbSecPerClust; /* sectors per cluster */
uint16_t bpbResSectors; /* number of reserved sectors */
uint8_t bpbFATs; /* number of FATs */
uint16_t bpbRootDirEnts; /* number of root directory entries */
uint16_t bpbSectors; /* total number of sectors */
uint8_t bpbMedia; /* media descriptor */
uint16_t bpbFATsecs; /* number of sectors per FAT */
uint16_t bpbSecPerTrack; /* sectors per track */
uint16_t bpbHeads; /* number of heads */
uint16_t bpbHiddenSecs; /* # of hidden sectors */
}; /* __attribute__((__packed__)); */
/*
* (x86) BIOS Parameter Block for FAT16
*/
struct mbr_bpbFAT16 {
uint16_t bpbBytesPerSec; /* bytes per sector */
uint8_t bpbSecPerClust; /* sectors per cluster */
uint16_t bpbResSectors; /* number of reserved sectors */
uint8_t bpbFATs; /* number of FATs */
uint16_t bpbRootDirEnts; /* number of root directory entries */
uint16_t bpbSectors; /* total number of sectors */
uint8_t bpbMedia; /* media descriptor */
uint16_t bpbFATsecs; /* number of sectors per FAT */
uint16_t bpbSecPerTrack; /* sectors per track */
uint16_t bpbHeads; /* number of heads */
uint32_t bpbHiddenSecs; /* # of hidden sectors */
uint32_t bpbHugeSectors; /* # of sectors if bpbSectors == 0 */
uint8_t bsDrvNum; /* Int 0x13 drive number (e.g. 0x80) */
uint8_t bsReserved1; /* Reserved; set to 0 */
uint8_t bsBootSig; /* 0x29 if next 3 fields are present */
uint8_t bsVolID[4]; /* Volume serial number */
uint8_t bsVolLab[11]; /* Volume label */
uint8_t bsFileSysType[8];
/* "FAT12 ", "FAT16 ", "FAT " */
}; /* __attribute__((__packed__)); */
/*
* (x86) BIOS Parameter Block for FAT32
*/
struct mbr_bpbFAT32 {
uint16_t bpbBytesPerSec; /* bytes per sector */
uint8_t bpbSecPerClust; /* sectors per cluster */
uint16_t bpbResSectors; /* number of reserved sectors */
uint8_t bpbFATs; /* number of FATs */
uint16_t bpbRootDirEnts; /* number of root directory entries */
uint16_t bpbSectors; /* total number of sectors */
uint8_t bpbMedia; /* media descriptor */
uint16_t bpbFATsecs; /* number of sectors per FAT */
uint16_t bpbSecPerTrack; /* sectors per track */
uint16_t bpbHeads; /* number of heads */
uint32_t bpbHiddenSecs; /* # of hidden sectors */
uint32_t bpbHugeSectors; /* # of sectors if bpbSectors == 0 */
uint32_t bpbBigFATsecs; /* like bpbFATsecs for FAT32 */
uint16_t bpbExtFlags; /* extended flags: */
#define MBR_FAT32_FATNUM 0x0F /* mask for numbering active FAT */
#define MBR_FAT32_FATMIRROR 0x80 /* FAT is mirrored (as previously) */
uint16_t bpbFSVers; /* filesystem version */
#define MBR_FAT32_FSVERS 0 /* currently only 0 is understood */
uint32_t bpbRootClust; /* start cluster for root directory */
uint16_t bpbFSInfo; /* filesystem info structure sector */
uint16_t bpbBackup; /* backup boot sector */
uint8_t bsReserved[12]; /* Reserved for future expansion */
uint8_t bsDrvNum; /* Int 0x13 drive number (e.g. 0x80) */
uint8_t bsReserved1; /* Reserved; set to 0 */
uint8_t bsBootSig; /* 0x29 if next 3 fields are present */
uint8_t bsVolID[4]; /* Volume serial number */
uint8_t bsVolLab[11]; /* Volume label */
uint8_t bsFileSysType[8]; /* "FAT32 " */
}; /* __attribute__((__packed__)); */
/*
* (x86) MBR boot selector
*/
struct mbr_bootsel {
uint8_t mbrbs_defkey;
uint8_t mbrbs_flags;
uint16_t mbrbs_timeo;
uint8_t mbrbs_nametab[MBR_PART_COUNT][MBR_BS_PARTNAMESIZE + 1];
}; /* __attribute__((__packed__)); */
/*
* MBR partition
*/
struct mbr_partition {
uint8_t mbrp_flag; /* MBR partition flags */
uint8_t mbrp_shd; /* Starting head */
uint8_t mbrp_ssect; /* Starting sector */
uint8_t mbrp_scyl; /* Starting cylinder */
uint8_t mbrp_type; /* Partition type (see below) */
uint8_t mbrp_ehd; /* End head */
uint8_t mbrp_esect; /* End sector */
uint8_t mbrp_ecyl; /* End cylinder */
uint32_t mbrp_start; /* Absolute starting sector number */
uint32_t mbrp_size; /* Partition size in sectors */
}; /* __attribute__((__packed__)); */
int xlat_mbr_fstype(int); /* in sys/lib/libkern/xlat_mbr_fstype.c */
/*
* MBR boot sector.
* This is used by both the MBR (Master Boot Record) in sector 0 of the disk
* and the PBR (Partition Boot Record) in sector 0 of an MBR partition.
*/
struct mbr_sector {
/* Jump instruction to boot code. */
/* Usually 0xE9nnnn or 0xEBnn90 */
uint8_t mbr_jmpboot[3];
/* OEM name and version */
uint8_t mbr_oemname[8];
union { /* BIOS Parameter Block */
struct mbr_bpbFAT12 bpb12;
struct mbr_bpbFAT16 bpb16;
struct mbr_bpbFAT32 bpb32;
} mbr_bpb;
/* Boot code */
uint8_t mbr_bootcode[310];
/* Config for /usr/mdec/mbr_bootsel */
struct mbr_bootsel mbr_bootsel;
/* NT Drive Serial Number */
uint32_t mbr_dsn;
/* mbr_bootsel magic */
uint16_t mbr_bootsel_magic;
/* MBR partition table */
struct mbr_partition mbr_parts[MBR_PART_COUNT];
/* MBR magic (0xaa55) */
uint16_t mbr_magic;
}; /* __attribute__((__packed__)); */
#endif /* !defined(__ASSEMBLER__) */ /* } */
#pragma pack()
/* ------------------------------------------
* shared --
* definitions shared by many platforms
*/
#if !defined(__ASSEMBLER__) /* { */
/* Maximum # of blocks in bbi_block_table, each bbi_block_size long */
#define SHARED_BBINFO_MAXBLOCKS 118 /* so sizeof(shared_bbinfo) == 512 */
struct shared_bbinfo {
uint8_t bbi_magic[32];
int32_t bbi_block_size;
int32_t bbi_block_count;
int32_t bbi_block_table[SHARED_BBINFO_MAXBLOCKS];
};
#if 0 /* XXX ffsdrv */
/* ------------------------------------------
* alpha --
* Alpha (disk, but also tape) Boot Block.
*
* See Section (III) 3.6.1 of the Alpha Architecture Reference Manual.
*/
struct alpha_boot_block {
uint64_t bb_data[63]; /* data (disklabel, also as below) */
uint64_t bb_cksum; /* checksum of the boot block,
* taken as uint64_t's
*/
};
#define bb_secsize bb_data[60] /* secondary size (blocks) */
#define bb_secstart bb_data[61] /* secondary start (blocks) */
#define bb_flags bb_data[62] /* unknown flags (set to zero) */
#define ALPHA_BOOT_BLOCK_OFFSET 0 /* offset of boot block. */
#define ALPHA_BOOT_BLOCK_BLOCKSIZE 512 /* block size for sector
* size/start, and for boot
* block itself.
*/
#define ALPHA_BOOT_BLOCK_CKSUM(bb,cksum) \
do { \
const struct alpha_boot_block *_bb = (bb); \
uint64_t _cksum; \
int _i; \
\
_cksum = 0; \
for (_i = 0; \
_i < (sizeof _bb->bb_data / sizeof _bb->bb_data[0]); \
_i++) \
_cksum += _bb->bb_data[_i]; \
*(cksum) = _cksum; \
} while (/*CONSTCOND*/ 0)
/* ------------------------------------------
* apple --
* Apple computers boot block related information
*/
/*
* Driver Descriptor Map, from Inside Macintosh: Devices, SCSI Manager
* pp 12-13. The driver descriptor map always resides on physical block 0.
*/
struct apple_drvr_descriptor {
uint32_t descBlock; /* first block of driver */
uint16_t descSize; /* driver size in blocks */
uint16_t descType; /* system type */
};
/*
* system types; Apple reserves 0-15
*/
#define APPLE_DRVR_TYPE_MACINTOSH 1
#define APPLE_DRVR_MAP_MAGIC 0x4552
#define APPLE_DRVR_MAP_MAX_DESCRIPTORS 61
struct apple_drvr_map {
uint16_t sbSig; /* map signature */
uint16_t sbBlockSize; /* block size of device */
uint32_t sbBlkCount; /* number of blocks on device */
uint16_t sbDevType; /* (used internally by ROM) */
uint16_t sbDevID; /* (used internally by ROM) */
uint32_t sbData; /* (used internally by ROM) */
uint16_t sbDrvrCount; /* number of driver descriptors */
struct apple_drvr_descriptor sb_dd[APPLE_DRVR_MAP_MAX_DESCRIPTORS];
uint16_t pad[3];
} __attribute__((__packed__));
/*
* Partition map structure from Inside Macintosh: Devices, SCSI Manager
* pp. 13-14. The partition map always begins on physical block 1.
*
* With the exception of block 0, all blocks on the disk must belong to
* exactly one partition. The partition map itself belongs to a partition
* of type `APPLE_PARTITION_MAP', and is not limited in size by anything
* other than available disk space. The partition map is not necessarily
* the first partition listed.
*/
#define APPLE_PART_MAP_ENTRY_MAGIC 0x504d
struct apple_part_map_entry {
uint16_t pmSig; /* partition signature */
uint16_t pmSigPad; /* (reserved) */
uint32_t pmMapBlkCnt; /* number of blocks in partition map */
uint32_t pmPyPartStart; /* first physical block of partition */
uint32_t pmPartBlkCnt; /* number of blocks in partition */
uint8_t pmPartName[32]; /* partition name */
uint8_t pmPartType[32]; /* partition type */
uint32_t pmLgDataStart; /* first logical block of data area */
uint32_t pmDataCnt; /* number of blocks in data area */
uint32_t pmPartStatus; /* partition status information */
uint32_t pmLgBootStart; /* first logical block of boot code */
uint32_t pmBootSize; /* size of boot code, in bytes */
uint32_t pmBootLoad; /* boot code load address */
uint32_t pmBootLoad2; /* (reserved) */
uint32_t pmBootEntry; /* boot code entry point */
uint32_t pmBootEntry2; /* (reserved) */
uint32_t pmBootCksum; /* boot code checksum */
int8_t pmProcessor[16]; /* processor type (e.g. "68020") */
uint8_t pmBootArgs[128]; /* A/UX boot arguments */
uint8_t pad[248]; /* pad to end of block */
};
#define APPLE_PART_TYPE_DRIVER "APPLE_DRIVER"
#define APPLE_PART_TYPE_DRIVER43 "APPLE_DRIVER43"
#define APPLE_PART_TYPE_DRIVERATA "APPLE_DRIVER_ATA"
#define APPLE_PART_TYPE_DRIVERIOKIT "APPLE_DRIVER_IOKIT"
#define APPLE_PART_TYPE_FWDRIVER "APPLE_FWDRIVER"
#define APPLE_PART_TYPE_FWB_COMPONENT "FWB DRIVER COMPONENTS"
#define APPLE_PART_TYPE_FREE "APPLE_FREE"
#define APPLE_PART_TYPE_MAC "APPLE_HFS"
#define APPLE_PART_TYPE_NETBSD "NETBSD"
#define APPLE_PART_TYPE_NBSD_PPCBOOT "NETBSD/MACPPC"
#define APPLE_PART_TYPE_NBSD_68KBOOT "NETBSD/MAC68K"
#define APPLE_PART_TYPE_PATCHES "APPLE_PATCHES"
#define APPLE_PART_TYPE_PARTMAP "APPLE_PARTITION_MAP"
#define APPLE_PART_TYPE_PATCHES "APPLE_PATCHES"
#define APPLE_PART_TYPE_SCRATCH "APPLE_SCRATCH"
#define APPLE_PART_TYPE_UNIX "APPLE_UNIX_SVR2"
/*
* "pmBootArgs" for APPLE_UNIX_SVR2 partition.
* NetBSD/mac68k only uses Magic, Cluster, Type, and Flags.
*/
struct apple_blockzeroblock {
uint32_t bzbMagic;
uint8_t bzbCluster;
uint8_t bzbType;
uint16_t bzbBadBlockInode;
uint16_t bzbFlags;
uint16_t bzbReserved;
uint32_t bzbCreationTime;
uint32_t bzbMountTime;
uint32_t bzbUMountTime;
};
#define APPLE_BZB_MAGIC 0xABADBABE
#define APPLE_BZB_TYPEFS 1
#define APPLE_BZB_TYPESWAP 3
#define APPLE_BZB_ROOTFS 0x8000
#define APPLE_BZB_USRFS 0x4000
/* ------------------------------------------
* hp300
*
*/
/* volume header for "LIF" format volumes */
struct hp300_lifvol {
int16_t vol_id;
char vol_label[6];
int32_t vol_addr;
int16_t vol_oct;
int16_t vol_dummy;
int32_t vol_dirsize;
int16_t vol_version;
int16_t vol_zero;
int32_t vol_huh1;
int32_t vol_huh2;
int32_t vol_length;
};
/* LIF directory entry format */
struct hp300_lifdir {
char dir_name[10];
int16_t dir_type;
int32_t dir_addr;
int32_t dir_length;
char dir_toc[6];
int16_t dir_flag;
int32_t dir_exec;
};
/* load header for boot rom */
struct hp300_load {
int32_t address;
int32_t count;
};
#define HP300_VOL_ID -32768
#define HP300_VOL_OCT 4096
#define HP300_DIR_TYPE -5822
#define HP300_DIR_FLAG 0x8001 /* dont ask me! */
#define HP300_SECTSIZE 256
#endif
/* ------------------------------------------
* x86
*
*/
/*
* Parameters for NetBSD /boot written to start of pbr code by installboot
*/
struct x86_boot_params {
uint32_t bp_length; /* length of patchable data */
uint32_t bp_flags;
uint32_t bp_timeout; /* boot timeout in seconds */
uint32_t bp_consdev;
uint32_t bp_conspeed;
uint8_t bp_password[16]; /* md5 hash of password */
char bp_keymap[16]; /* keyboard traslation map */
};
#endif /* !defined(__ASSEMBLER__) */ /* } */
#define X86_BOOT_MAGIC(n) ('x' << 24 | 0x86b << 12 | 'm' << 4 | (n))
#define X86_BOOT_MAGIC_1 X86_BOOT_MAGIC(1) /* pbr.S */
#define X86_BOOT_MAGIC_2 X86_BOOT_MAGIC(2) /* bootxx.S */
#define X86_BOOT_MAGIC_PXE X86_BOOT_MAGIC(3) /* start_pxe.S */
/* values for bp_flags */
#define X86_BP_FLAGS_RESET_VIDEO 1
#define X86_BP_FLAGS_PASSWORD 2
/* values for bp_consdev */
#define X86_BP_CONSDEV_PC 0
#define X86_BP_CONSDEV_COM0 1
#define X86_BP_CONSDEV_COM1 2
#define X86_BP_CONSDEV_COM2 3
#define X86_BP_CONSDEV_COM3 4
#define X86_BP_CONSDEV_COM0KBD 5
#define X86_BP_CONSDEV_COM1KBD 6
#define X86_BP_CONSDEV_COM2KBD 7
#define X86_BP_CONSDEV_COM3KBD 8
#if !defined(__ASSEMBLER__) /* { */
#if 0 /* XXX ffsdrv */
/* ------------------------------------------
* macppc
*/
#define MACPPC_BOOT_BLOCK_OFFSET 2048
#define MACPPC_BOOT_BLOCK_BLOCKSIZE 512
#define MACPPC_BOOT_BLOCK_MAX_SIZE 2048 /* XXX: could be up to 6144 */
/* Magic string -- 32 bytes long (including the NUL) */
#define MACPPC_BBINFO_MAGIC "NetBSD/macppc bootxx 20020515"
/* ------------------------------------------
* news68k, newsmips
*/
#define NEWS_BOOT_BLOCK_LABELOFFSET 64 /* XXX from <machine/disklabel.h> */
#define NEWS_BOOT_BLOCK_OFFSET 0
#define NEWS_BOOT_BLOCK_BLOCKSIZE 512
#define NEWS_BOOT_BLOCK_MAX_SIZE (512 * 16)
/* Magic string -- 32 bytes long (including the NUL) */
#define NEWS68K_BBINFO_MAGIC "NetBSD/news68k bootxx 20020518"
#define NEWSMIPS_BBINFO_MAGIC "NetBSD/newsmips bootxx 20020518"
/* ------------------------------------------
* next68k
*/
#define NEXT68K_LABEL_MAXPARTITIONS 8 /* number of partitions in next68k_disklabel */
#define NEXT68K_LABEL_CPULBLLEN 24
#define NEXT68K_LABEL_MAXDNMLEN 24
#define NEXT68K_LABEL_MAXTYPLEN 24
#define NEXT68K_LABEL_MAXBFLEN 24
#define NEXT68K_LABEL_MAXHNLEN 32
#define NEXT68K_LABEL_MAXMPTLEN 16
#define NEXT68K_LABEL_MAXFSTLEN 8
#define NEXT68K_LABEL_NBAD 1670 /* sized to make label ~= 8KB */
struct next68k_partition {
int32_t cp_offset; /* starting sector */
int32_t cp_size; /* number of sectors in partition */
int16_t cp_bsize; /* block size in bytes */
int16_t cp_fsize; /* filesystem basic fragment size */
char cp_opt; /* optimization type: 's'pace/'t'ime */
char cp_pad1;
int16_t cp_cpg; /* filesystem cylinders per group */
int16_t cp_density; /* bytes per inode density */
int8_t cp_minfree; /* minfree (%) */
int8_t cp_newfs; /* run newfs during init */
char cp_mountpt[NEXT68K_LABEL_MAXMPTLEN];
/* default/standard mount point */
int8_t cp_automnt; /* auto-mount when inserted */
char cp_type[NEXT68K_LABEL_MAXFSTLEN]; /* file system type name */
char cp_pad2;
} __attribute__ ((packed));
/* The disklabel the way it is on the disk */
struct next68k_disklabel {
int32_t cd_version; /* label version */
int32_t cd_label_blkno; /* block # of this label */
int32_t cd_size; /* size of media area (sectors) */
char cd_label[NEXT68K_LABEL_CPULBLLEN]; /* disk name (label) */
uint32_t cd_flags; /* flags */
uint32_t cd_tag; /* volume tag */
char cd_name[NEXT68K_LABEL_MAXDNMLEN]; /* drive (hardware) name */
char cd_type[NEXT68K_LABEL_MAXTYPLEN]; /* drive type */
int32_t cd_secsize; /* # of bytes per sector */
int32_t cd_ntracks; /* # of tracks per cylinder */
int32_t cd_nsectors; /* # of data sectors per track */
int32_t cd_ncylinders; /* # of data cylinders per unit */
int32_t cd_rpm; /* rotational speed */
int16_t cd_front; /* # of sectors in "front porch" */
int16_t cd_back; /* # of sectors in "back porch" */
int16_t cd_ngroups; /* # of alt groups */
int16_t cd_ag_size; /* alt group size (sectors) */
int16_t cd_ag_alts; /* alternate sectors / alt group */
int16_t cd_ag_off; /* sector offset to first alternate */
int32_t cd_boot_blkno[2]; /* boot program locations */
char cd_kernel[NEXT68K_LABEL_MAXBFLEN]; /* default kernel name */
char cd_hostname[NEXT68K_LABEL_MAXHNLEN];
/* host name (usu. where disk was labeled) */
char cd_rootpartition; /* root partition letter e.g. 'a' */
char cd_rwpartition; /* r/w partition letter e.g. 'b' */
struct next68k_partition cd_partitions[NEXT68K_LABEL_MAXPARTITIONS];
union {
uint16_t CD_v3_checksum; /* label version 3 checksum */
int32_t CD_bad[NEXT68K_LABEL_NBAD];
/* block number that is bad */
} cd_un;
uint16_t cd_checksum; /* label version 1 or 2 checksum */
} __attribute__ ((packed));
#define NEXT68K_LABEL_cd_checksum cd_checksum
#define NEXT68K_LABEL_cd_v3_checksum cd_un.CD_v3_checksum
#define NEXT68K_LABEL_cd_bad cd_un.CD_bad
#define NEXT68K_LABEL_SECTOR 0 /* sector containing label */
#define NEXT68K_LABEL_OFFSET 0 /* offset of label in sector */
#define NEXT68K_LABEL_SIZE 8192 /* size of label */
#define NEXT68K_LABEL_CD_V1 0x4e655854 /* version #1: "NeXT" */
#define NEXT68K_LABEL_CD_V2 0x646c5632 /* version #2: "dlV2" */
#define NEXT68K_LABEL_CD_V3 0x646c5633 /* version #3: "dlV3" */
#define NEXT68K_LABEL_DEFAULTFRONTPORCH (160 * 2)
#define NEXT68K_LABEL_DEFAULTBOOT0_1 (32 * 2)
#define NEXT68K_LABEL_DEFAULTBOOT0_2 (96 * 2)
/* ------------------------------------------
* pmax --
* PMAX (DECstation / MIPS) boot block information
*/
/*
* If mode is 0, there is just one sequence of blocks and one Dec_BootMap
* is used. If mode is 1, there are multiple sequences of blocks
* and multiple Dec_BootMaps are used, the last with numBlocks = 0.
*/
struct pmax_boot_map {
int32_t num_blocks; /* Number of blocks to read. */
int32_t start_block; /* Starting block on disk. */
};
/*
* This is the structure of a disk or tape boot block. The boot_map
* can either be a single boot count and start block (contiguous mode)
* or a list of up to 61 (to fill a 512 byte sector) block count and
* start block pairs. Under NetBSD, contiguous mode is always used.
*/
struct pmax_boot_block {
uint8_t pad[8];
int32_t magic; /* PMAX_BOOT_MAGIC */
int32_t mode; /* Mode for boot info. */
uint32_t load_addr; /* Address to start loading. */
uint32_t exec_addr; /* Address to start execing. */
struct pmax_boot_map map[61]; /* boot program section(s). */
} __attribute__((__packed__));
#define PMAX_BOOT_MAGIC 0x0002757a
#define PMAX_BOOTMODE_CONTIGUOUS 0
#define PMAX_BOOTMODE_SCATTERED 1
#define PMAX_BOOT_BLOCK_OFFSET 0
#define PMAX_BOOT_BLOCK_BLOCKSIZE 512
/* ------------------------------------------
* sparc
*/
#define SPARC_BOOT_BLOCK_OFFSET 512
#define SPARC_BOOT_BLOCK_BLOCKSIZE 512
#define SPARC_BOOT_BLOCK_MAX_SIZE (512 * 15)
/* Magic string -- 32 bytes long (including the NUL) */
#define SPARC_BBINFO_MAGIC "NetBSD/sparc bootxx 20020515"
/* ------------------------------------------
* sparc64
*/
#define SPARC64_BOOT_BLOCK_OFFSET 512
#define SPARC64_BOOT_BLOCK_BLOCKSIZE 512
#define SPARC64_BOOT_BLOCK_MAX_SIZE (512 * 15)
/* ------------------------------------------
* sun68k (sun2, sun3)
*/
#define SUN68K_BOOT_BLOCK_OFFSET 512
#define SUN68K_BOOT_BLOCK_BLOCKSIZE 512
#define SUN68K_BOOT_BLOCK_MAX_SIZE (512 * 15)
/* Magic string -- 32 bytes long (including the NUL) */
#define SUN68K_BBINFO_MAGIC "NetBSD/sun68k bootxx 20020515"
/* ------------------------------------------
* vax --
* VAX boot block information
*/
struct vax_boot_block {
/* Note that these don't overlap any of the pmax boot block */
uint8_t pad0[2];
uint8_t bb_id_offset; /* offset in words to id (magic1)*/
uint8_t bb_mbone; /* must be one */
uint16_t bb_lbn_hi; /* lbn (hi word) of bootstrap */
uint16_t bb_lbn_low; /* lbn (low word) of bootstrap */
uint8_t pad1[332];
/* The rest of these fields are identification area and describe
* the secondary block for uVAX VMB.
*/
uint8_t bb_magic1; /* magic number */
uint8_t bb_mbz1; /* must be zero */
uint8_t bb_pad1; /* any value */
uint8_t bb_sum1; /* ~(magic1 + mbz1 + pad1) */
uint8_t bb_mbz2; /* must be zero */
uint8_t bb_volinfo; /* volinfo */
uint8_t bb_pad2a; /* any value */
uint8_t bb_pad2b; /* any value */
uint32_t bb_size; /* size in blocks of bootstrap */
uint32_t bb_load; /* load offset to bootstrap */
uint32_t bb_entry; /* byte offset in bootstrap */
uint32_t bb_sum3; /* sum of previous 3 fields */
/* The rest is unused.
*/
uint8_t pad2[148];
} __attribute__((__packed__));
#define VAX_BOOT_MAGIC1 0x18 /* size of BB info? */
#define VAX_BOOT_VOLINFO_NONE 0x00 /* no special info */
#define VAX_BOOT_VOLINFO_SS 0x01 /* single sided */
#define VAX_BOOT_VOLINFO_DS 0x81 /* double sided */
#define VAX_BOOT_SIZE 15 /* 15 blocks */
#define VAX_BOOT_LOAD 0 /* no load offset */
#define VAX_BOOT_ENTRY 0x200 /* one block in */
#define VAX_BOOT_BLOCK_OFFSET 0
#define VAX_BOOT_BLOCK_BLOCKSIZE 512
/* ------------------------------------------
* x68k
*/
#define X68K_BOOT_BLOCK_OFFSET 0
#define X68K_BOOT_BLOCK_BLOCKSIZE 512
#define X68K_BOOT_BLOCK_MAX_SIZE (512 * 16)
/* Magic string -- 32 bytes long (including the NUL) */
#define X68K_BBINFO_MAGIC "NetBSD/x68k bootxx 20020601"
#endif /* !defined(__ASSEMBLER__) */ /* } */
#endif
#endif /* !_SYS_BOOTBLOCK_H */