1/* $NetBSD: bootblock.h,v 1.61 2025/04/05 19:57:47 tsutsui Exp $ */
2
3/*-
4 * Copyright (c) 2002-2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28/*-
29 * Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
30 * Michael L. Finch, Bradley A. Grantham, and
31 * Lawrence A. Kesteloot
32 * All rights reserved.
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 * 3. All advertising materials mentioning features or use of this software
43 * must display the following acknowledgement:
44 * This product includes software developed by the Alice Group.
45 * 4. The names of the Alice Group or any of its members may not be used
46 * to endorse or promote products derived from this software without
47 * specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR
50 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
51 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
52 * IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT,
53 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
54 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
55 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
56 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
57 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
58 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
59 *
60 */
61/*
62 * Copyright (c) 1994, 1999 Christopher G. Demetriou
63 * All rights reserved.
64 *
65 * Redistribution and use in source and binary forms, with or without
66 * modification, are permitted provided that the following conditions
67 * are met:
68 * 1. Redistributions of source code must retain the above copyright
69 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in the
72 * documentation and/or other materials provided with the distribution.
73 * 3. All advertising materials mentioning features or use of this software
74 * must display the following acknowledgement:
75 * This product includes software developed by Christopher G. Demetriou
76 * for the NetBSD Project.
77 * 4. The name of the author may not be used to endorse or promote products
78 * derived from this software without specific prior written permission
79 *
80 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
81 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
82 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
83 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
84 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
85 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
86 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
87 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
88 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
89 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
90 */
91/*
92 * Copyright (c) 1994 Rolf Grossmann
93 * All rights reserved.
94 *
95 * Redistribution and use in source and binary forms, with or without
96 * modification, are permitted provided that the following conditions
97 * are met:
98 * 1. Redistributions of source code must retain the above copyright
99 * notice, this list of conditions and the following disclaimer.
100 * 2. Redistributions in binary form must reproduce the above copyright
101 * notice, this list of conditions and the following disclaimer in the
102 * documentation and/or other materials provided with the distribution.
103 * 3. All advertising materials mentioning features or use of this software
104 * must display the following acknowledgement:
105 * This product includes software developed by Rolf Grossmann.
106 * 4. The name of the author may not be used to endorse or promote products
107 * derived from this software without specific prior written permission
108 *
109 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
110 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
111 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
112 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
113 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
114 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
115 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
116 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
117 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
118 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
119 */
120
121#ifndef _SYS_BOOTBLOCK_H
122#define _SYS_BOOTBLOCK_H
123
124#if !defined(__ASSEMBLER__)
125#include <sys/cdefs.h>
126#if defined(_KERNEL) || defined(_STANDALONE)
127#include <sys/stdint.h>
128#else
129#include <stdint.h>
130#endif
131#endif /* !defined(__ASSEMBLER__) */
132
133/* ------------------------------------------
134 * MBR (Master Boot Record) --
135 * definitions for systems that use MBRs
136 */
137
138/*
139 * Layout of boot records:
140 *
141 * Byte range Use Description
142 * ---------- --- -----------
143 *
144 * 0 - 2 FMP JMP xxx, NOP
145 * 3 - 10 FP OEM Name
146 *
147 * 11 - 61 FMP FAT12/16 BPB
148 * Whilst not strictly necessary for MBR,
149 * GRUB reserves this area
150 *
151 * 11 - 89 P FAT32 BPB
152 * (are we ever going to boot off this?)
153 *
154 *
155 * 62 - 217 FMP Boot code
156 *
157 * 90 - 217 P FAT32 boot code
158 *
159 * 218 - 223 M Win95b/98/me "drive time"
160 * http://www.geocities.com/thestarman3/asm/mbr/95BMEMBR.htm#MYST
161 * only changed if all 6 bytes are 0
162 *
163 * 224 - 436 FMP boot code (continued)
164 *
165 * 437 - 439 M WinNT/2K/XP MBR "boot language"
166 * http://www.geocities.com/thestarman3/asm/mbr/Win2kmbr.htm
167 * not needed by us
168 *
169 * 400 - 439 MP NetBSD: mbr_bootsel
170 *
171 * 424 - 439 M NetBSD: bootptn_guid (in GPT PMBR only)
172 *
173 * 440 - 443 M WinNT/2K/XP Drive Serial Number (NT DSN)
174 * http://www.geocities.com/thestarman3/asm/mbr/Win2kmbr.htm
175 *
176 * 444 - 445 FMP bootcode or unused
177 * NetBSD: mbr_bootsel_magic
178 *
179 * 446 - 509 M partition table
180 *
181 * 510 - 511 FMP magic number (0xAA55)
182 *
183 * Use:
184 * ----
185 * F Floppy boot sector
186 * M Master Boot Record
187 * P Partition Boot record
188 *
189 */
190
191/*
192 * MBR (Master Boot Record)
193 */
194#define MBR_BBSECTOR 0 /* MBR relative sector # */
195#define MBR_BPB_OFFSET 11 /* offsetof(mbr_sector, mbr_bpb) */
196#define MBR_BOOTCODE_OFFSET 90 /* offsetof(mbr_sector, mbr_bootcode) */
197#define MBR_BS_OFFSET 400 /* offsetof(mbr_sector, mbr_bootsel) */
198#define MBR_BS_OLD_OFFSET 404 /* where mbr_bootsel used to be */
199#define MBR_GPT_GUID_OFFSET 424 /* location of partition GUID to boot */
200#define MBR_GPT_GUID_DEFAULT /* default uninitialized GUID */ \
201 {0xeee69d04,0x02f4,0x11e0,0x8f,0x5d,{0x00,0xe0,0x81,0x52,0x9a,0x6b}}
202#define MBR_DSN_OFFSET 440 /* offsetof(mbr_sector, mbr_dsn) */
203#define MBR_BS_MAGIC_OFFSET 444 /* offsetof(mbr_sector, mbr_bootsel_magic) */
204#define MBR_PART_OFFSET 446 /* offsetof(mbr_sector, mbr_part[0]) */
205#define MBR_MAGIC_OFFSET 510 /* offsetof(mbr_sector, mbr_magic) */
206#define MBR_MAGIC 0xaa55 /* MBR magic number */
207#define MBR_BS_MAGIC 0xb5e1 /* mbr_bootsel magic number */
208#define MBR_PART_COUNT 4 /* Number of partitions in MBR */
209#define MBR_BS_PARTNAMESIZE 8 /* Size of name mbr_bootsel nametab */
210 /* (excluding trailing NUL) */
211
212 /* values for mbr_partition.mbrp_flag */
213#define MBR_PFLAG_ACTIVE 0x80 /* The active partition */
214
215 /* values for mbr_partition.mbrp_type */
216#define MBR_PTYPE_UNUSED 0x00 /* Unused */
217#define MBR_PTYPE_FAT12 0x01 /* 12-bit FAT */
218#define MBR_PTYPE_XENIX_ROOT 0x02 /* XENIX / */
219#define MBR_PTYPE_XENIX_USR 0x03 /* XENIX /usr */
220#define MBR_PTYPE_FAT16S 0x04 /* 16-bit FAT, less than 32M */
221#define MBR_PTYPE_EXT 0x05 /* extended partition */
222#define MBR_PTYPE_FAT16B 0x06 /* 16-bit FAT, more than 32M */
223#define MBR_PTYPE_NTFS 0x07 /* OS/2 HPFS, NTFS, QNX2, Adv. UNIX */
224#define MBR_PTYPE_DELL 0x08 /* AIX or os, or etc. */
225#define MBR_PTYPE_AIX_BOOT 0x09 /* AIX boot partition or Coherent */
226#define MBR_PTYPE_OS2_BOOT 0x0a /* O/2 boot manager or Coherent swap */
227#define MBR_PTYPE_FAT32 0x0b /* 32-bit FAT */
228#define MBR_PTYPE_FAT32L 0x0c /* 32-bit FAT, LBA-mapped */
229#define MBR_PTYPE_7XXX 0x0d /* 7XXX, LBA-mapped */
230#define MBR_PTYPE_FAT16L 0x0e /* 16-bit FAT, LBA-mapped */
231#define MBR_PTYPE_EXT_LBA 0x0f /* extended partition, LBA-mapped */
232#define MBR_PTYPE_OPUS 0x10 /* OPUS */
233#define MBR_PTYPE_OS2_DOS12 0x11 /* OS/2 DOS 12-bit FAT */
234#define MBR_PTYPE_COMPAQ_DIAG 0x12 /* Compaq diagnostics */
235#define MBR_PTYPE_OS2_DOS16S 0x14 /* OS/2 DOS 16-bit FAT <32M */
236#define MBR_PTYPE_OS2_DOS16B 0x16 /* OS/2 DOS 16-bit FAT >=32M */
237#define MBR_PTYPE_OS2_IFS 0x17 /* OS/2 hidden IFS */
238#define MBR_PTYPE_AST_SWAP 0x18 /* AST Windows swapfile */
239#define MBR_PTYPE_WILLOWTECH 0x19 /* Willowtech Photon coS */
240#define MBR_PTYPE_HID_FAT32 0x1b /* hidden win95 fat 32 */
241#define MBR_PTYPE_HID_FAT32_LBA 0x1c /* hidden win95 fat 32 lba */
242#define MBR_PTYPE_HID_FAT16_LBA 0x1d /* hidden win95 fat 16 lba */
243#define MBR_PTYPE_WILLOWSOFT 0x20 /* Willowsoft OFS1 */
244#define MBR_PTYPE_RESERVED_x21 0x21 /* reserved */
245#define MBR_PTYPE_RESERVED_x23 0x23 /* reserved */
246#define MBR_PTYPE_RESERVED_x24 0x24 /* NEC DOS */
247#define MBR_PTYPE_RESERVED_x26 0x26 /* reserved */
248#define MBR_PTYPE_RESERVED_x31 0x31 /* reserved */
249#define MBR_PTYPE_NOS 0x32 /* Alien Internet Services NOS */
250#define MBR_PTYPE_RESERVED_x33 0x33 /* reserved */
251#define MBR_PTYPE_RESERVED_x34 0x34 /* reserved */
252#define MBR_PTYPE_OS2_JFS 0x35 /* JFS on OS2 */
253#define MBR_PTYPE_RESERVED_x36 0x36 /* reserved */
254#define MBR_PTYPE_THEOS 0x38 /* Theos */
255#define MBR_PTYPE_PLAN9 0x39 /* Plan 9, or Theos spanned */
256#define MBR_PTYPE_THEOS_4GB 0x3a /* Theos ver 4 4gb partition */
257#define MBR_PTYPE_THEOS_EXT 0x3b /* Theos ve 4 extended partition */
258#define MBR_PTYPE_PMRECOVERY 0x3c /* PartitionMagic recovery */
259#define MBR_PTYPE_HID_NETWARE 0x3d /* Hidden Netware */
260#define MBR_PTYPE_VENIX 0x40 /* VENIX 286 or LynxOS */
261#define MBR_PTYPE_PREP 0x41 /* PReP */
262#define MBR_PTYPE_DRDOS_LSWAP 0x42 /* linux swap sharing DRDOS disk */
263#define MBR_PTYPE_DRDOS_LINUX 0x43 /* linux sharing DRDOS disk */
264#define MBR_PTYPE_GOBACK 0x44 /* GoBack change utility */
265#define MBR_PTYPE_BOOT_US 0x45 /* Boot US Boot manager */
266#define MBR_PTYPE_EUMEL_x46 0x46 /* EUMEL/Elan or Ergos 3 */
267#define MBR_PTYPE_EUMEL_x47 0x47 /* EUMEL/Elan or Ergos 3 */
268#define MBR_PTYPE_EUMEL_x48 0x48 /* EUMEL/Elan or Ergos 3 */
269#define MBR_PTYPE_ALFS_THIN 0x4a /* ALFX/THIN filesystem for DOS */
270#define MBR_PTYPE_OBERON 0x4c /* Oberon partition */
271#define MBR_PTYPE_QNX4X 0x4d /* QNX4.x */
272#define MBR_PTYPE_QNX4X_2 0x4e /* QNX4.x 2nd part */
273#define MBR_PTYPE_QNX4X_3 0x4f /* QNX4.x 3rd part */
274#define MBR_PTYPE_DM 0x50 /* DM (disk manager) */
275#define MBR_PTYPE_DM6_AUX1 0x51 /* DM6 Aux1 (or Novell) */
276#define MBR_PTYPE_CPM 0x52 /* CP/M or Microport SysV/AT */
277#define MBR_PTYPE_DM6_AUX3 0x53 /* DM6 Aux3 */
278#define MBR_PTYPE_DM6_DDO 0x54 /* DM6 DDO */
279#define MBR_PTYPE_EZDRIVE 0x55 /* EZ-Drive (disk manager) */
280#define MBR_PTYPE_GOLDEN_BOW 0x56 /* Golden Bow (disk manager) */
281#define MBR_PTYPE_DRIVE_PRO 0x57 /* Drive PRO */
282#define MBR_PTYPE_PRIAM_EDISK 0x5c /* Priam Edisk (disk manager) */
283#define MBR_PTYPE_SPEEDSTOR 0x61 /* SpeedStor */
284#define MBR_PTYPE_HURD 0x63 /* GNU HURD or Mach or Sys V/386 */
285#define MBR_PTYPE_NOVELL_2XX 0x64 /* Novell Netware 2.xx or Speedstore */
286#define MBR_PTYPE_NOVELL_3XX 0x65 /* Novell Netware 3.xx */
287#define MBR_PTYPE_NOVELL_386 0x66 /* Novell 386 Netware */
288#define MBR_PTYPE_NOVELL_x67 0x67 /* Novell */
289#define MBR_PTYPE_NOVELL_x68 0x68 /* Novell */
290#define MBR_PTYPE_NOVELL_x69 0x69 /* Novell */
291#define MBR_PTYPE_DISKSECURE 0x70 /* DiskSecure Multi-Boot */
292#define MBR_PTYPE_RESERVED_x71 0x71 /* reserved */
293#define MBR_PTYPE_RESERVED_x73 0x73 /* reserved */
294#define MBR_PTYPE_RESERVED_x74 0x74 /* reserved */
295#define MBR_PTYPE_PCIX 0x75 /* PC/IX */
296#define MBR_PTYPE_RESERVED_x76 0x76 /* reserved */
297#define MBR_PTYPE_M2FS_M2CS 0x77 /* M2FS/M2CS partition */
298#define MBR_PTYPE_XOSL_FS 0x78 /* XOSL boot loader filesystem */
299#define MBR_PTYPE_MINIX_14A 0x80 /* MINIX until 1.4a */
300#define MBR_PTYPE_MINIX_14B 0x81 /* MINIX since 1.4b */
301#define MBR_PTYPE_LNXSWAP 0x82 /* Linux swap or Solaris */
302#define MBR_PTYPE_LNXEXT2 0x83 /* Linux native */
303#define MBR_PTYPE_OS2_C 0x84 /* OS/2 hidden C: drive */
304#define MBR_PTYPE_EXT_LNX 0x85 /* Linux extended partition */
305#define MBR_PTYPE_NTFATVOL 0x86 /* NT FAT volume set */
306#define MBR_PTYPE_NTFSVOL 0x87 /* NTFS volume set or HPFS mirrored */
307#define MBR_PTYPE_LNX_KERNEL 0x8a /* Linux Kernel AiR-BOOT partition */
308#define MBR_PTYPE_FT_FAT32 0x8b /* Legacy Fault tolerant FAT32 */
309#define MBR_PTYPE_FT_FAT32_EXT 0x8c /* Legacy Fault tolerant FAT32 ext */
310#define MBR_PTYPE_HID_FR_FD_12 0x8d /* Hidden free FDISK FAT12 */
311#define MBR_PTYPE_LNX_LVM 0x8e /* Linux Logical Volume Manager */
312#define MBR_PTYPE_HID_FR_FD_16 0x90 /* Hidden free FDISK FAT16 */
313#define MBR_PTYPE_HID_FR_FD_EXT 0x91 /* Hidden free FDISK DOS EXT */
314#define MBR_PTYPE_HID_FR_FD_16B 0x92 /* Hidden free FDISK FAT16 Big */
315#define MBR_PTYPE_AMOEBA_FS 0x93 /* Amoeba filesystem */
316#define MBR_PTYPE_AMOEBA_BAD 0x94 /* Amoeba bad block table */
317#define MBR_PTYPE_MIT_EXOPC 0x95 /* MIT EXOPC native partitions */
318#define MBR_PTYPE_HID_FR_FD_32 0x97 /* Hidden free FDISK FAT32 */
319#define MBR_PTYPE_DATALIGHT 0x98 /* Datalight ROM-DOS Super-Boot */
320#define MBR_PTYPE_MYLEX 0x99 /* Mylex EISA SCSI */
321#define MBR_PTYPE_HID_FR_FD_16L 0x9a /* Hidden free FDISK FAT16 LBA */
322#define MBR_PTYPE_HID_FR_FD_EXL 0x9b /* Hidden free FDISK EXT LBA */
323#define MBR_PTYPE_BSDI 0x9f /* BSDI? */
324#define MBR_PTYPE_IBM_HIB 0xa0 /* IBM Thinkpad hibernation */
325#define MBR_PTYPE_HP_VOL_xA1 0xa1 /* HP Volume expansion (SpeedStor) */
326#define MBR_PTYPE_HP_VOL_xA3 0xa3 /* HP Volume expansion (SpeedStor) */
327#define MBR_PTYPE_HP_VOL_xA4 0xa4 /* HP Volume expansion (SpeedStor) */
328#define MBR_PTYPE_386BSD 0xa5 /* 386BSD partition type */
329#define MBR_PTYPE_OPENBSD 0xa6 /* OpenBSD partition type */
330#define MBR_PTYPE_NEXTSTEP_486 0xa7 /* NeXTSTEP 486 */
331#define MBR_PTYPE_APPLE_UFS 0xa8 /* Apple UFS */
332#define MBR_PTYPE_NETBSD 0xa9 /* NetBSD partition type */
333#define MBR_PTYPE_OLIVETTI 0xaa /* Olivetty Fat12 1.44MB Service part */
334#define MBR_PTYPE_APPLE_BOOT 0xab /* Apple Boot */
335#define MBR_PTYPE_SHAG_OS 0xae /* SHAG OS filesystem */
336#define MBR_PTYPE_APPLE_HFS 0xaf /* Apple HFS */
337#define MBR_PTYPE_BOOTSTAR_DUM 0xb0 /* BootStar Dummy */
338#define MBR_PTYPE_RESERVED_xB1 0xb1 /* reserved */
339#define MBR_PTYPE_RESERVED_xB3 0xb3 /* reserved */
340#define MBR_PTYPE_RESERVED_xB4 0xb4 /* reserved */
341#define MBR_PTYPE_RESERVED_xB6 0xb6 /* reserved */
342#define MBR_PTYPE_BSDI_386 0xb7 /* BSDI BSD/386 filesystem */
343#define MBR_PTYPE_BSDI_SWAP 0xb8 /* BSDI BSD/386 swap */
344#define MBR_PTYPE_BOOT_WIZARD 0xbb /* Boot Wizard Hidden */
345#define MBR_PTYPE_SOLARIS_8 0xbe /* Solaris 8 partition type */
346#define MBR_PTYPE_SOLARIS 0xbf /* Solaris partition type */
347#define MBR_PTYPE_CTOS 0xc0 /* CTOS */
348#define MBR_PTYPE_DRDOS_FAT12 0xc1 /* DRDOS/sec (FAT-12) */
349#define MBR_PTYPE_HID_LNX 0xc2 /* Hidden Linux */
350#define MBR_PTYPE_HID_LNX_SWAP 0xc3 /* Hidden Linux swap */
351#define MBR_PTYPE_DRDOS_FAT16S 0xc4 /* DRDOS/sec (FAT-16, < 32M) */
352#define MBR_PTYPE_DRDOS_EXT 0xc5 /* DRDOS/sec (EXT) */
353#define MBR_PTYPE_DRDOS_FAT16B 0xc6 /* DRDOS/sec (FAT-16, >= 32M) */
354#define MBR_PTYPE_SYRINX 0xc7 /* Syrinx (Cyrnix?) or HPFS disabled */
355#define MBR_PTYPE_DRDOS_8_xC8 0xc8 /* Reserved for DR-DOS 8.0+ */
356#define MBR_PTYPE_DRDOS_8_xC9 0xc9 /* Reserved for DR-DOS 8.0+ */
357#define MBR_PTYPE_DRDOS_8_xCA 0xca /* Reserved for DR-DOS 8.0+ */
358#define MBR_PTYPE_DRDOS_74_CHS 0xcb /* DR-DOS 7.04+ Secured FAT32 CHS */
359#define MBR_PTYPE_DRDOS_74_LBA 0xcc /* DR-DOS 7.04+ Secured FAT32 LBA */
360#define MBR_PTYPE_CTOS_MEMDUMP 0xcd /* CTOS Memdump */
361#define MBR_PTYPE_DRDOS_74_16X 0xce /* DR-DOS 7.04+ FAT16X LBA */
362#define MBR_PTYPE_DRDOS_74_EXT 0xcf /* DR-DOS 7.04+ EXT LBA */
363#define MBR_PTYPE_REAL32 0xd0 /* REAL/32 secure big partition */
364#define MBR_PTYPE_MDOS_FAT12 0xd1 /* Old Multiuser DOS FAT12 */
365#define MBR_PTYPE_MDOS_FAT16S 0xd4 /* Old Multiuser DOS FAT16 Small */
366#define MBR_PTYPE_MDOS_EXT 0xd5 /* Old Multiuser DOS Extended */
367#define MBR_PTYPE_MDOS_FAT16B 0xd6 /* Old Multiuser DOS FAT16 Big */
368#define MBR_PTYPE_CPM_86 0xd8 /* CP/M 86 */
369#define MBR_PTYPE_CONCURRENT 0xdb /* CP/M or Concurrent CP/M */
370#define MBR_PTYPE_HID_CTOS_MEM 0xdd /* Hidden CTOS Memdump */
371#define MBR_PTYPE_DELL_UTIL 0xde /* Dell PowerEdge Server utilities */
372#define MBR_PTYPE_DGUX_VIRTUAL 0xdf /* DG/UX virtual disk manager */
373#define MBR_PTYPE_STMICROELEC 0xe0 /* STMicroelectronics ST AVFS */
374#define MBR_PTYPE_DOS_ACCESS 0xe1 /* DOS access or SpeedStor 12-bit */
375#define MBR_PTYPE_STORDIM 0xe3 /* DOS R/O or Storage Dimensions */
376#define MBR_PTYPE_SPEEDSTOR_16S 0xe4 /* SpeedStor 16-bit FAT < 1024 cyl. */
377#define MBR_PTYPE_RESERVED_xE5 0xe5 /* reserved */
378#define MBR_PTYPE_RESERVED_xE6 0xe6 /* reserved */
379#define MBR_PTYPE_BEOS 0xeb /* BeOS */
380#define MBR_PTYPE_PMBR 0xee /* GPT Protective MBR */
381#define MBR_PTYPE_EFI 0xef /* EFI system partition */
382#define MBR_PTYPE_LNX_PA_RISC 0xf0 /* Linux PA-RISC boot loader */
383#define MBR_PTYPE_SPEEDSTOR_X 0xf1 /* SpeedStor or Storage Dimensions */
384#define MBR_PTYPE_DOS33_SEC 0xf2 /* DOS 3.3+ Secondary */
385#define MBR_PTYPE_RESERVED_xF3 0xf3 /* reserved */
386#define MBR_PTYPE_SPEEDSTOR_L 0xf4 /* SpeedStor large partition */
387#define MBR_PTYPE_PROLOGUE 0xf5 /* Prologue multi-volumen partition */
388#define MBR_PTYPE_RESERVED_xF6 0xf6 /* reserved */
389#define MBR_PTYPE_PCACHE 0xf9 /* pCache: ext2/ext3 persistent cache */
390#define MBR_PTYPE_BOCHS 0xfa /* Bochs x86 emulator */
391#define MBR_PTYPE_VMWARE 0xfb /* VMware File System */
392#define MBR_PTYPE_VMWARE_SWAP 0xfc /* VMware Swap */
393#define MBR_PTYPE_LNX_RAID 0xfd /* Linux RAID partition persistent sb */
394#define MBR_PTYPE_LANSTEP 0xfe /* LANstep or IBM PS/2 IML */
395#define MBR_PTYPE_XENIX_BAD 0xff /* Xenix Bad Block Table */
396
397#ifdef MBRPTYPENAMES
398static const struct mbr_ptype {
399 int id;
400 const char *name;
401} mbr_ptypes[] = {
402 { MBR_PTYPE_UNUSED, "<UNUSED>" },
403 { MBR_PTYPE_FAT12, "Primary DOS with 12 bit FAT" },
404 { MBR_PTYPE_XENIX_ROOT, "XENIX / filesystem" },
405 { MBR_PTYPE_XENIX_USR, "XENIX /usr filesystem" },
406 { MBR_PTYPE_FAT16S, "Primary DOS with 16 bit FAT <32M" },
407 { MBR_PTYPE_EXT, "Extended partition" },
408 { MBR_PTYPE_FAT16B, "Primary 'big' DOS, 16-bit FAT (> 32MB)" },
409 { MBR_PTYPE_NTFS, "NTFS, OS/2 HPFS, QNX2 or Advanced UNIX" },
410 { MBR_PTYPE_DELL, "AIX filesystem or OS/2 (thru v1.3) or DELL "
411 "multiple drives or Commodore DOS or SplitDrive" },
412 { MBR_PTYPE_AIX_BOOT, "AIX boot partition or Coherent" },
413 { MBR_PTYPE_OS2_BOOT, "OS/2 Boot Manager or Coherent swap or OPUS" },
414 { MBR_PTYPE_FAT32, "Primary DOS with 32 bit FAT" },
415 { MBR_PTYPE_FAT32L, "Primary DOS with 32 bit FAT - LBA" },
416 { MBR_PTYPE_7XXX, "Type 7??? - LBA" },
417 { MBR_PTYPE_FAT16L, "DOS (16-bit FAT) - LBA" },
418 { MBR_PTYPE_EXT_LBA, "Ext. partition - LBA" },
419 { MBR_PTYPE_OPUS, "OPUS" },
420 { MBR_PTYPE_OS2_DOS12, "OS/2 BM: hidden DOS 12-bit FAT" },
421 { MBR_PTYPE_COMPAQ_DIAG, "Compaq diagnostics" },
422 { MBR_PTYPE_OS2_DOS16S, "OS/2 BM: hidden DOS 16-bit FAT <32M "
423 "or Novell DOS 7.0 bug" },
424 { MBR_PTYPE_OS2_DOS16B, "OS/2 BM: hidden DOS 16-bit FAT >=32M" },
425 { MBR_PTYPE_OS2_IFS, "OS/2 BM: hidden IFS" },
426 { MBR_PTYPE_AST_SWAP, "AST Windows swapfile" },
427 { MBR_PTYPE_WILLOWTECH, "Willowtech Photon coS" },
428 { MBR_PTYPE_HID_FAT32, "hidden Windows/95 FAT32" },
429 { MBR_PTYPE_HID_FAT32_LBA, "hidden Windows/95 FAT32 LBA" },
430 { MBR_PTYPE_HID_FAT16_LBA, "hidden Windows/95 FAT16 LBA" },
431 { MBR_PTYPE_WILLOWSOFT, "Willowsoft OFS1" },
432 { MBR_PTYPE_RESERVED_x21, "reserved" },
433 { MBR_PTYPE_RESERVED_x23, "reserved" },
434 { MBR_PTYPE_RESERVED_x24, "NEC DOS"},
435 { MBR_PTYPE_RESERVED_x26, "reserved" },
436 { MBR_PTYPE_RESERVED_x31, "reserved" },
437 { MBR_PTYPE_NOS, "Alien Internet Services NOS" },
438 { MBR_PTYPE_RESERVED_x33, "reserved" },
439 { MBR_PTYPE_RESERVED_x34, "reserved" },
440 { MBR_PTYPE_OS2_JFS, "JFS on OS2" },
441 { MBR_PTYPE_RESERVED_x36, "reserved" },
442 { MBR_PTYPE_THEOS, "Theos" },
443 { MBR_PTYPE_PLAN9, "Plan 9" },
444 { MBR_PTYPE_PLAN9, "Plan 9, or Theos spanned" },
445 { MBR_PTYPE_THEOS_4GB, "Theos ver 4 4gb partition" },
446 { MBR_PTYPE_THEOS_EXT, "Theos ve 4 extended partition" },
447 { MBR_PTYPE_PMRECOVERY, "PartitionMagic recovery" },
448 { MBR_PTYPE_HID_NETWARE, "Hidden Netware" },
449 { MBR_PTYPE_VENIX, "VENIX 286 or LynxOS" },
450 { MBR_PTYPE_PREP, "Linux/MINIX (sharing disk with DRDOS) "
451 "or Personal RISC boot" },
452 { MBR_PTYPE_DRDOS_LSWAP, "SFS or Linux swap "
453 "(sharing disk with DRDOS)" },
454 { MBR_PTYPE_DRDOS_LINUX, "Linux native (sharing disk with DRDOS)" },
455 { MBR_PTYPE_GOBACK, "GoBack change utility" },
456 { MBR_PTYPE_BOOT_US, "Boot US Boot manager" },
457 { MBR_PTYPE_EUMEL_x46, "EUMEL/Elan or Ergos 3" },
458 { MBR_PTYPE_EUMEL_x47, "EUMEL/Elan or Ergos 3" },
459 { MBR_PTYPE_EUMEL_x48, "EUMEL/Elan or Ergos 3" },
460 { MBR_PTYPE_ALFS_THIN, "ALFX/THIN filesystem for DOS" },
461 { MBR_PTYPE_OBERON, "Oberon partition" },
462 { MBR_PTYPE_QNX4X, "QNX4.x" },
463 { MBR_PTYPE_QNX4X_2, "QNX4.x 2nd part" },
464 { MBR_PTYPE_QNX4X_3, "QNX4.x 3rd part" },
465 { MBR_PTYPE_DM, "DM (disk manager)" },
466 { MBR_PTYPE_DM6_AUX1, "DM6 Aux1 (or Novell)" },
467 { MBR_PTYPE_CPM, "CP/M or Microport SysV/AT" },
468 { MBR_PTYPE_DM6_AUX3, "DM6 Aux3" },
469 { MBR_PTYPE_DM6_DDO, "DM6 DDO" },
470 { MBR_PTYPE_EZDRIVE, "EZ-Drive (disk manager)" },
471 { MBR_PTYPE_GOLDEN_BOW, "Golden Bow (disk manager)" },
472 { MBR_PTYPE_DRIVE_PRO, "Drive PRO" },
473 { MBR_PTYPE_PRIAM_EDISK, "Priam Edisk (disk manager)" },
474 { MBR_PTYPE_SPEEDSTOR, "SpeedStor" },
475 { MBR_PTYPE_HURD, "GNU HURD or Mach or Sys V/386 "
476 "(such as ISC UNIX) or MtXinu" },
477 { MBR_PTYPE_NOVELL_2XX, "Novell Netware 2.xx or Speedstore" },
478 { MBR_PTYPE_NOVELL_3XX, "Novell Netware 3.xx" },
479 { MBR_PTYPE_NOVELL_386, "Novell 386 Netware" },
480 { MBR_PTYPE_NOVELL_x67, "Novell" },
481 { MBR_PTYPE_NOVELL_x68, "Novell" },
482 { MBR_PTYPE_NOVELL_x69, "Novell" },
483 { MBR_PTYPE_DISKSECURE, "DiskSecure Multi-Boot" },
484 { MBR_PTYPE_RESERVED_x71, "reserved" },
485 { MBR_PTYPE_RESERVED_x73, "reserved" },
486 { MBR_PTYPE_RESERVED_x74, "reserved" },
487 { MBR_PTYPE_PCIX, "PC/IX" },
488 { MBR_PTYPE_RESERVED_x76, "reserved" },
489 { MBR_PTYPE_M2FS_M2CS, "M2FS/M2CS partition" },
490 { MBR_PTYPE_XOSL_FS, "XOSL boot loader filesystem" },
491 { MBR_PTYPE_MINIX_14A, "MINIX until 1.4a" },
492 { MBR_PTYPE_MINIX_14B, "MINIX since 1.4b, early Linux, Mitac dmgr" },
493 { MBR_PTYPE_LNXSWAP, "Linux swap or Prime or Solaris" },
494 { MBR_PTYPE_LNXEXT2, "Linux native" },
495 { MBR_PTYPE_OS2_C, "OS/2 hidden C: drive" },
496 { MBR_PTYPE_EXT_LNX, "Linux extended" },
497 { MBR_PTYPE_NTFATVOL, "NT FAT volume set" },
498 { MBR_PTYPE_NTFSVOL, "NTFS volume set or HPFS mirrored" },
499 { MBR_PTYPE_LNX_KERNEL, "Linux Kernel AiR-BOOT partition" },
500 { MBR_PTYPE_FT_FAT32, "Legacy Fault tolerant FAT32" },
501 { MBR_PTYPE_FT_FAT32_EXT, "Legacy Fault tolerant FAT32 ext" },
502 { MBR_PTYPE_HID_FR_FD_12, "Hidden free FDISK FAT12" },
503 { MBR_PTYPE_LNX_LVM, "Linux Logical Volume Manager" },
504 { MBR_PTYPE_HID_FR_FD_16, "Hidden free FDISK FAT16" },
505 { MBR_PTYPE_HID_FR_FD_EXT, "Hidden free FDISK DOS EXT" },
506 { MBR_PTYPE_HID_FR_FD_16L, "Hidden free FDISK FAT16 Large" },
507 { MBR_PTYPE_AMOEBA_FS, "Amoeba filesystem" },
508 { MBR_PTYPE_AMOEBA_BAD, "Amoeba bad block table" },
509 { MBR_PTYPE_MIT_EXOPC, "MIT EXOPC native partitions" },
510 { MBR_PTYPE_HID_FR_FD_32, "Hidden free FDISK FAT32" },
511 { MBR_PTYPE_DATALIGHT, "Datalight ROM-DOS Super-Boot" },
512 { MBR_PTYPE_MYLEX, "Mylex EISA SCSI" },
513 { MBR_PTYPE_HID_FR_FD_16L, "Hidden free FDISK FAT16 LBA" },
514 { MBR_PTYPE_HID_FR_FD_EXL, "Hidden free FDISK EXT LBA" },
515 { MBR_PTYPE_BSDI, "BSDI?" },
516 { MBR_PTYPE_IBM_HIB, "IBM Thinkpad hibernation" },
517 { MBR_PTYPE_HP_VOL_xA1, "HP Volume expansion (SpeedStor)" },
518 { MBR_PTYPE_HP_VOL_xA3, "HP Volume expansion (SpeedStor)" },
519 { MBR_PTYPE_HP_VOL_xA4, "HP Volume expansion (SpeedStor)" },
520 { MBR_PTYPE_386BSD, "FreeBSD or 386BSD or old NetBSD" },
521 { MBR_PTYPE_OPENBSD, "OpenBSD" },
522 { MBR_PTYPE_NEXTSTEP_486, "NeXTSTEP 486" },
523 { MBR_PTYPE_APPLE_UFS, "Apple UFS" },
524 { MBR_PTYPE_NETBSD, "NetBSD" },
525 { MBR_PTYPE_OLIVETTI, "Olivetty Fat12 1.44MB Service part" },
526 { MBR_PTYPE_SHAG_OS, "SHAG OS filesystem" },
527 { MBR_PTYPE_BOOTSTAR_DUM, "BootStar Dummy" },
528 { MBR_PTYPE_BOOT_WIZARD, "Boot Wizard Hidden" },
529 { MBR_PTYPE_APPLE_BOOT, "Apple Boot" },
530 { MBR_PTYPE_APPLE_HFS, "Apple HFS" },
531 { MBR_PTYPE_RESERVED_xB6, "reserved" },
532 { MBR_PTYPE_RESERVED_xB6, "reserved" },
533 { MBR_PTYPE_RESERVED_xB6, "reserved" },
534 { MBR_PTYPE_RESERVED_xB6, "reserved" },
535 { MBR_PTYPE_BSDI_386, "BSDI BSD/386 filesystem" },
536 { MBR_PTYPE_BSDI_SWAP, "BSDI BSD/386 swap" },
537 { MBR_PTYPE_SOLARIS_8, "Solaris 8 boot partition" },
538 { MBR_PTYPE_SOLARIS, "Solaris boot partition" },
539 { MBR_PTYPE_CTOS, "CTOS" },
540 { MBR_PTYPE_DRDOS_FAT12, "DRDOS/sec (FAT-12)" },
541 { MBR_PTYPE_HID_LNX, "Hidden Linux" },
542 { MBR_PTYPE_HID_LNX_SWAP, "Hidden Linux Swap" },
543 { MBR_PTYPE_DRDOS_FAT16S, "DRDOS/sec (FAT-16, < 32M)" },
544 { MBR_PTYPE_DRDOS_EXT, "DRDOS/sec (EXT)" },
545 { MBR_PTYPE_DRDOS_FAT16B, "DRDOS/sec (FAT-16, >= 32M)" },
546 { MBR_PTYPE_SYRINX, "Syrinx (Cyrnix?) or HPFS disabled" },
547 { MBR_PTYPE_DRDOS_8_xC8, "Reserved for DR-DOS 8.0+" },
548 { MBR_PTYPE_DRDOS_8_xC9, "Reserved for DR-DOS 8.0+" },
549 { MBR_PTYPE_DRDOS_8_xCA, "Reserved for DR-DOS 8.0+" },
550 { MBR_PTYPE_DRDOS_74_CHS, "DR-DOS 7.04+ Secured FAT32 CHS" },
551 { MBR_PTYPE_DRDOS_74_LBA, "DR-DOS 7.04+ Secured FAT32 LBA" },
552 { MBR_PTYPE_CTOS_MEMDUMP, "CTOS Memdump" },
553 { MBR_PTYPE_DRDOS_74_16X, "DR-DOS 7.04+ FAT16X LBA" },
554 { MBR_PTYPE_DRDOS_74_EXT, "DR-DOS 7.04+ EXT LBA" },
555 { MBR_PTYPE_REAL32, "REAL/32 secure big partition" },
556 { MBR_PTYPE_MDOS_FAT12, "Old Multiuser DOS FAT12" },
557 { MBR_PTYPE_MDOS_FAT16S, "Old Multiuser DOS FAT16 Small" },
558 { MBR_PTYPE_MDOS_EXT, "Old Multiuser DOS Extended" },
559 { MBR_PTYPE_MDOS_FAT16B, "Old Multiuser DOS FAT16 Big" },
560 { MBR_PTYPE_CPM_86, "CP/M 86" },
561 { MBR_PTYPE_CONCURRENT, "CP/M or Concurrent CP/M or Concurrent DOS "
562 "or CTOS" },
563 { MBR_PTYPE_HID_CTOS_MEM, "Hidden CTOS Memdump" },
564 { MBR_PTYPE_DELL_UTIL, "Dell PowerEdge Server utilities" },
565 { MBR_PTYPE_DGUX_VIRTUAL, "DG/UX virtual disk manager" },
566 { MBR_PTYPE_STMICROELEC, "STMicroelectronics ST AVFS" },
567 { MBR_PTYPE_DOS_ACCESS, "DOS access or SpeedStor 12-bit FAT "
568 "extended partition" },
569 { MBR_PTYPE_STORDIM, "DOS R/O or SpeedStor or Storage Dimensions" },
570 { MBR_PTYPE_SPEEDSTOR_16S, "SpeedStor 16-bit FAT extended partition "
571 "< 1024 cyl." },
572 { MBR_PTYPE_RESERVED_xE5, "reserved" },
573 { MBR_PTYPE_RESERVED_xE6, "reserved" },
574 { MBR_PTYPE_BEOS, "BeOS" },
575 { MBR_PTYPE_PMBR, "GPT Protective MBR" },
576 { MBR_PTYPE_EFI, "EFI system partition" },
577 { MBR_PTYPE_LNX_PA_RISC, "Linux PA-RISC boot loader" },
578 { MBR_PTYPE_SPEEDSTOR_X, "SpeedStor or Storage Dimensions" },
579 { MBR_PTYPE_DOS33_SEC, "DOS 3.3+ Secondary" },
580 { MBR_PTYPE_RESERVED_xF3, "reserved" },
581 { MBR_PTYPE_SPEEDSTOR_L, "SpeedStor large partition or "
582 "Storage Dimensions" },
583 { MBR_PTYPE_PROLOGUE, "Prologue multi-volumen partition" },
584 { MBR_PTYPE_RESERVED_xF6, "reserved" },
585 { MBR_PTYPE_PCACHE, "pCache: ext2/ext3 persistent cache" },
586 { MBR_PTYPE_BOCHS, "Bochs x86 emulator" },
587 { MBR_PTYPE_VMWARE, "VMware File System" },
588 { MBR_PTYPE_VMWARE_SWAP, "VMware Swap" },
589 { MBR_PTYPE_LNX_RAID, "Linux RAID partition persistent sb" },
590 { MBR_PTYPE_LANSTEP, "SpeedStor >1024 cyl. or LANstep "
591 "or IBM PS/2 IML" },
592 { MBR_PTYPE_XENIX_BAD, "Xenix Bad Block Table" },
593};
594#endif
595
596#define MBR_PSECT(s) ((s) & 0x3f)
597#define MBR_PCYL(c, s) ((c) + (((s) & 0xc0) << 2))
598
599#define MBR_IS_EXTENDED(x) ((x) == MBR_PTYPE_EXT || \
600 (x) == MBR_PTYPE_EXT_LBA || \
601 (x) == MBR_PTYPE_EXT_LNX)
602
603 /* values for mbr_bootsel.mbrbs_flags */
604#define MBR_BS_ACTIVE 0x01 /* Bootselector active (or code present) */
605#define MBR_BS_EXTINT13 0x02 /* Set by fdisk if LBA needed (deprecated) */
606#define MBR_BS_READ_LBA 0x04 /* Force LBA reads (deprecated) */
607#define MBR_BS_EXTLBA 0x08 /* Extended ptn capable (LBA reads) */
608#define MBR_BS_ASCII 0x10 /* Bootselect code needs ascii key code */
609/* This is always set, the bootsel is located using the magic number... */
610#define MBR_BS_NEWMBR 0x80 /* New bootsel at offset 440 */
611
612#if !defined(__ASSEMBLER__) /* { */
613
614/*
615 * (x86) BIOS Parameter Block for FAT12
616 */
617struct mbr_bpbFAT12 {
618 uint16_t bpbBytesPerSec; /* bytes per sector */
619 uint8_t bpbSecPerClust; /* sectors per cluster */
620 uint16_t bpbResSectors; /* number of reserved sectors */
621 uint8_t bpbFATs; /* number of FATs */
622 uint16_t bpbRootDirEnts; /* number of root directory entries */
623 uint16_t bpbSectors; /* total number of sectors */
624 uint8_t bpbMedia; /* media descriptor */
625 uint16_t bpbFATsecs; /* number of sectors per FAT */
626 uint16_t bpbSecPerTrack; /* sectors per track */
627 uint16_t bpbHeads; /* number of heads */
628 uint16_t bpbHiddenSecs; /* # of hidden sectors */
629} __packed;
630
631/*
632 * (x86) BIOS Parameter Block for FAT16
633 */
634struct mbr_bpbFAT16 {
635 uint16_t bpbBytesPerSec; /* bytes per sector */
636 uint8_t bpbSecPerClust; /* sectors per cluster */
637 uint16_t bpbResSectors; /* number of reserved sectors */
638 uint8_t bpbFATs; /* number of FATs */
639 uint16_t bpbRootDirEnts; /* number of root directory entries */
640 uint16_t bpbSectors; /* total number of sectors */
641 uint8_t bpbMedia; /* media descriptor */
642 uint16_t bpbFATsecs; /* number of sectors per FAT */
643 uint16_t bpbSecPerTrack; /* sectors per track */
644 uint16_t bpbHeads; /* number of heads */
645 uint32_t bpbHiddenSecs; /* # of hidden sectors */
646 uint32_t bpbHugeSectors; /* # of sectors if bpbSectors == 0 */
647 uint8_t bsDrvNum; /* Int 0x13 drive number (e.g. 0x80) */
648 uint8_t bsReserved1; /* Reserved; set to 0 */
649 uint8_t bsBootSig; /* 0x29 if next 3 fields are present */
650 uint8_t bsVolID[4]; /* Volume serial number */
651 uint8_t bsVolLab[11]; /* Volume label */
652 uint8_t bsFileSysType[8];
653 /* "FAT12 ", "FAT16 ", "FAT " */
654} __packed;
655
656/*
657 * (x86) BIOS Parameter Block for FAT32
658 */
659struct mbr_bpbFAT32 {
660 uint16_t bpbBytesPerSec; /* bytes per sector */
661 uint8_t bpbSecPerClust; /* sectors per cluster */
662 uint16_t bpbResSectors; /* number of reserved sectors */
663 uint8_t bpbFATs; /* number of FATs */
664 uint16_t bpbRootDirEnts; /* number of root directory entries */
665 uint16_t bpbSectors; /* total number of sectors */
666 uint8_t bpbMedia; /* media descriptor */
667 uint16_t bpbFATsecs; /* number of sectors per FAT */
668 uint16_t bpbSecPerTrack; /* sectors per track */
669 uint16_t bpbHeads; /* number of heads */
670 uint32_t bpbHiddenSecs; /* # of hidden sectors */
671 uint32_t bpbHugeSectors; /* # of sectors if bpbSectors == 0 */
672 uint32_t bpbBigFATsecs; /* like bpbFATsecs for FAT32 */
673 uint16_t bpbExtFlags; /* extended flags: */
674#define MBR_FAT32_FATNUM 0x0F /* mask for numbering active FAT */
675#define MBR_FAT32_FATMIRROR 0x80 /* FAT is mirrored (as previously) */
676 uint16_t bpbFSVers; /* filesystem version */
677#define MBR_FAT32_FSVERS 0 /* currently only 0 is understood */
678 uint32_t bpbRootClust; /* start cluster for root directory */
679 uint16_t bpbFSInfo; /* filesystem info structure sector */
680 uint16_t bpbBackup; /* backup boot sector */
681 uint8_t bsReserved[12]; /* Reserved for future expansion */
682 uint8_t bsDrvNum; /* Int 0x13 drive number (e.g. 0x80) */
683 uint8_t bsReserved1; /* Reserved; set to 0 */
684 uint8_t bsBootSig; /* 0x29 if next 3 fields are present */
685 uint8_t bsVolID[4]; /* Volume serial number */
686 uint8_t bsVolLab[11]; /* Volume label */
687 uint8_t bsFileSysType[8]; /* "FAT32 " */
688} __packed;
689
690/*
691 * (x86) MBR boot selector
692 */
693struct mbr_bootsel {
694 uint8_t mbrbs_defkey;
695 uint8_t mbrbs_flags;
696 uint16_t mbrbs_timeo;
697 char mbrbs_nametab[MBR_PART_COUNT][MBR_BS_PARTNAMESIZE + 1];
698} __packed;
699
700/*
701 * MBR partition
702 */
703struct mbr_partition {
704 uint8_t mbrp_flag; /* MBR partition flags */
705 uint8_t mbrp_shd; /* Starting head */
706 uint8_t mbrp_ssect; /* Starting sector */
707 uint8_t mbrp_scyl; /* Starting cylinder */
708 uint8_t mbrp_type; /* Partition type (see below) */
709 uint8_t mbrp_ehd; /* End head */
710 uint8_t mbrp_esect; /* End sector */
711 uint8_t mbrp_ecyl; /* End cylinder */
712 uint32_t mbrp_start; /* Absolute starting sector number */
713 uint32_t mbrp_size; /* Partition size in sectors */
714} __packed;
715
716int xlat_mbr_fstype(int); /* in sys/lib/libkern/xlat_mbr_fstype.c */
717
718/*
719 * MBR boot sector.
720 * This is used by both the MBR (Master Boot Record) in sector 0 of the disk
721 * and the PBR (Partition Boot Record) in sector 0 of an MBR partition.
722 */
723struct mbr_sector {
724 /* Jump instruction to boot code. */
725 /* Usually 0xE9nnnn or 0xEBnn90 */
726 uint8_t mbr_jmpboot[3];
727 /* OEM name and version */
728 uint8_t mbr_oemname[8];
729 union { /* BIOS Parameter Block */
730 struct mbr_bpbFAT12 bpb12;
731 struct mbr_bpbFAT16 bpb16;
732 struct mbr_bpbFAT32 bpb32;
733 } mbr_bpb;
734 /* Boot code */
735 uint8_t mbr_bootcode[310];
736 /* Config for /usr/mdec/mbr_bootsel */
737 struct mbr_bootsel mbr_bootsel;
738 /* NT Drive Serial Number */
739 uint32_t mbr_dsn;
740 /* mbr_bootsel magic */
741 uint16_t mbr_bootsel_magic;
742 /* MBR partition table */
743 struct mbr_partition mbr_parts[MBR_PART_COUNT];
744 /* MBR magic (0xaa55) */
745 uint16_t mbr_magic;
746} __packed;
747
748#endif /* !defined(__ASSEMBLER__) */ /* } */
749
750
751/* ------------------------------------------
752 * shared --
753 * definitions shared by many platforms
754 */
755
756#if !defined(__ASSEMBLER__) /* { */
757
758 /* Maximum # of blocks in bbi_block_table, each bbi_block_size long */
759#define SHARED_BBINFO_MAXBLOCKS 118 /* so sizeof(shared_bbinfo) == 512 */
760
761struct shared_bbinfo {
762 uint8_t bbi_magic[32];
763 int32_t bbi_block_size;
764 int32_t bbi_block_count;
765 int32_t bbi_block_table[SHARED_BBINFO_MAXBLOCKS];
766};
767
768/* ------------------------------------------
769 * alpha --
770 * Alpha (disk, but also tape) Boot Block.
771 *
772 * See Section (III) 3.6.1 of the Alpha Architecture Reference Manual.
773 */
774
775struct alpha_boot_block {
776 uint64_t bb_data[63]; /* data (disklabel, also as below) */
777 uint64_t bb_cksum; /* checksum of the boot block,
778 * taken as uint64_t's
779 */
780};
781#define bb_secsize bb_data[60] /* secondary size (blocks) */
782#define bb_secstart bb_data[61] /* secondary start (blocks) */
783#define bb_flags bb_data[62] /* unknown flags (set to zero) */
784
785#define ALPHA_BOOT_BLOCK_OFFSET 0 /* offset of boot block. */
786#define ALPHA_BOOT_BLOCK_BLOCKSIZE 512 /* block size for sector
787 * size/start, and for boot
788 * block itself.
789 */
790
791#define ALPHA_BOOT_BLOCK_CKSUM(bb,cksum) \
792 do { \
793 const struct alpha_boot_block *_bb = (bb); \
794 uint64_t _cksum; \
795 size_t _i; \
796 \
797 _cksum = 0; \
798 for (_i = 0; \
799 _i < (sizeof _bb->bb_data / sizeof _bb->bb_data[0]); \
800 _i++) \
801 _cksum += le64toh(_bb->bb_data[_i]); \
802 *(cksum) = htole64(_cksum); \
803 } while (0)
804
805/* ------------------------------------------
806 * apple --
807 * Apple computers boot block related information
808 */
809
810/*
811 * Driver Descriptor Map, from Inside Macintosh: Devices, SCSI Manager
812 * pp 12-13. The driver descriptor map always resides on physical block 0.
813 */
814struct apple_drvr_descriptor {
815 uint32_t descBlock; /* first block of driver */
816 uint16_t descSize; /* driver size in blocks */
817 uint16_t descType; /* system type */
818} __packed;
819
820/*
821 * system types; Apple reserves 0-15
822 */
823#define APPLE_DRVR_TYPE_MACINTOSH 1
824
825#define APPLE_DRVR_MAP_MAGIC 0x4552
826#define APPLE_DRVR_MAP_MAX_DESCRIPTORS 61
827
828struct apple_drvr_map {
829 uint16_t sbSig; /* map signature */
830 uint16_t sbBlockSize; /* block size of device */
831 uint32_t sbBlkCount; /* number of blocks on device */
832 uint16_t sbDevType; /* (used internally by ROM) */
833 uint16_t sbDevID; /* (used internally by ROM) */
834 uint32_t sbData; /* (used internally by ROM) */
835 uint16_t sbDrvrCount; /* number of driver descriptors */
836 struct apple_drvr_descriptor sb_dd[APPLE_DRVR_MAP_MAX_DESCRIPTORS];
837 uint16_t pad[3];
838} __packed;
839
840/*
841 * Partition map structure from Inside Macintosh: Devices, SCSI Manager
842 * pp. 13-14. The partition map always begins on physical block 1.
843 *
844 * With the exception of block 0, all blocks on the disk must belong to
845 * exactly one partition. The partition map itself belongs to a partition
846 * of type `APPLE_PARTITION_MAP', and is not limited in size by anything
847 * other than available disk space. The partition map is not necessarily
848 * the first partition listed.
849 */
850#define APPLE_PART_MAP_ENTRY_MAGIC 0x504d
851
852struct apple_part_map_entry {
853 uint16_t pmSig; /* partition signature */
854 uint16_t pmSigPad; /* (reserved) */
855 uint32_t pmMapBlkCnt; /* number of blocks in partition map */
856 uint32_t pmPyPartStart; /* first physical block of partition */
857 uint32_t pmPartBlkCnt; /* number of blocks in partition */
858 uint8_t pmPartName[32]; /* partition name */
859 uint8_t pmPartType[32]; /* partition type */
860 uint32_t pmLgDataStart; /* first logical block of data area */
861 uint32_t pmDataCnt; /* number of blocks in data area */
862 uint32_t pmPartStatus; /* partition status information */
863/*
864 * Partition Status Information from Apple Tech Note 1189
865 */
866#define APPLE_PS_VALID 0x00000001 /* Entry is valid */
867#define APPLE_PS_ALLOCATED 0x00000002 /* Entry is allocated */
868#define APPLE_PS_IN_USE 0x00000004 /* Entry in use */
869#define APPLE_PS_BOOT_INFO 0x00000008 /* Entry contains boot info */
870#define APPLE_PS_READABLE 0x00000010 /* Entry is readable */
871#define APPLE_PS_WRITABLE 0x00000020 /* Entry is writable */
872#define APPLE_PS_BOOT_CODE_PIC 0x00000040 /* Boot code has position
873 * independent code */
874#define APPLE_PS_CC_DRVR 0x00000100 /* Partition contains chain-
875 * compatible driver */
876#define APPLE_PS_RL_DRVR 0x00000200 /* Partition contains real
877 * driver */
878#define APPLE_PS_CH_DRVR 0x00000400 /* Partition contains chain
879 * driver */
880#define APPLE_PS_AUTO_MOUNT 0x40000000 /* Mount automatically at
881 * startup */
882#define APPLE_PS_STARTUP 0x80000000 /* Is the startup partition */
883 uint32_t pmLgBootStart; /* first logical block of boot code */
884 uint32_t pmBootSize; /* size of boot code, in bytes */
885 uint32_t pmBootLoad; /* boot code load address */
886 uint32_t pmBootLoad2; /* (reserved) */
887 uint32_t pmBootEntry; /* boot code entry point */
888 uint32_t pmBootEntry2; /* (reserved) */
889 uint32_t pmBootCksum; /* boot code checksum */
890 int8_t pmProcessor[16]; /* processor type (e.g. "68020") */
891 uint8_t pmBootArgs[128]; /* A/UX boot arguments */
892 uint8_t pad[248]; /* pad to end of block */
893};
894
895#define APPLE_PART_TYPE_DRIVER "APPLE_DRIVER"
896#define APPLE_PART_TYPE_DRIVER43 "APPLE_DRIVER43"
897#define APPLE_PART_TYPE_DRIVERATA "APPLE_DRIVER_ATA"
898#define APPLE_PART_TYPE_DRIVERIOKIT "APPLE_DRIVER_IOKIT"
899#define APPLE_PART_TYPE_FWDRIVER "APPLE_FWDRIVER"
900#define APPLE_PART_TYPE_FWB_COMPONENT "FWB DRIVER COMPONENTS"
901#define APPLE_PART_TYPE_FREE "APPLE_FREE"
902#define APPLE_PART_TYPE_MAC "APPLE_HFS"
903#define APPLE_PART_TYPE_NETBSD "NETBSD"
904#define APPLE_PART_TYPE_NBSD_PPCBOOT "NETBSD/MACPPC"
905#define APPLE_PART_TYPE_NBSD_68KBOOT "NETBSD/MAC68K"
906#define APPLE_PART_TYPE_PATCHES "APPLE_PATCHES"
907#define APPLE_PART_TYPE_PARTMAP "APPLE_PARTITION_MAP"
908#define APPLE_PART_TYPE_PATCHES "APPLE_PATCHES"
909#define APPLE_PART_TYPE_SCRATCH "APPLE_SCRATCH"
910#define APPLE_PART_TYPE_UNIX "APPLE_UNIX_SVR2"
911
912/*
913 * "pmBootArgs" for APPLE_UNIX_SVR2 partition.
914 * NetBSD/mac68k only uses Magic, Cluster, Type, and Flags.
915 */
916struct apple_blockzeroblock {
917 uint32_t bzbMagic;
918 uint8_t bzbCluster;
919 uint8_t bzbType;
920 uint16_t bzbBadBlockInode;
921 uint16_t bzbFlags;
922 uint16_t bzbReserved;
923 uint32_t bzbCreationTime;
924 uint32_t bzbMountTime;
925 uint32_t bzbUMountTime;
926};
927
928#define APPLE_BZB_MAGIC 0xABADBABE
929#define APPLE_BZB_TYPEFS 1
930#define APPLE_BZB_TYPESWAP 3
931#define APPLE_BZB_ROOTFS 0x8000
932#define APPLE_BZB_USRFS 0x4000
933
934/* ------------------------------------------
935 * ews4800mips
936 *
937 */
938
939#define EWS4800MIPS_BBINFO_MAGIC "NetBSD/ews4800mips 20040611"
940#define EWS4800MIPS_BOOT_BLOCK_OFFSET 0
941#define EWS4800MIPS_BOOT_BLOCK_BLOCKSIZE 512
942#define EWS4800MIPS_BOOT_BLOCK_MAX_SIZE (512 * 8)
943
944/* ------------------------------------------
945 * hp300
946 *
947 */
948
949/* volume header for "LIF" format volumes */
950
951struct hp300_lifvol {
952 uint16_t vol_id;
953 char vol_label[6];
954 uint32_t vol_addr;
955 uint16_t vol_oct;
956 uint16_t vol_dummy;
957 uint32_t vol_dirsize;
958 uint16_t vol_version;
959 uint16_t vol_zero;
960 uint32_t vol_huh1;
961 uint32_t vol_huh2;
962 uint32_t vol_length;
963};
964
965/* LIF directory entry format */
966
967struct hp300_lifdir {
968 char dir_name[10];
969 uint16_t dir_type;
970 uint32_t dir_addr;
971 uint32_t dir_length;
972 char dir_toc[6];
973 uint16_t dir_flag;
974 uint32_t dir_exec;
975};
976
977/* load header for boot rom */
978struct hp300_load {
979 uint32_t address;
980 uint32_t count;
981};
982
983#define HP300_VOL_ID 0x8000 /* always $8000 */
984#define HP300_VOL_OCT 4096
985#define HP300_DIR_TYPE 0xe942 /* "SYS9k Series 9000" */
986#define HP300_DIR_FLAG 0x8001 /* don't ask me! */
987#define HP300_SECTSIZE 256
988
989#define HP300_LIF_NUMDIR 8
990
991#define HP300_LIF_VOLSTART 0
992#define HP300_LIF_VOLSIZE sizeof(struct hp300_lifvol)
993#define HP300_LIF_DIRSTART 512
994#define HP300_LIF_DIRSIZE (HP300_LIF_NUMDIR * sizeof(struct hp300_lifdir))
995#define HP300_LIF_FILESTART 8192
996
997#define hp300_btolifs(b) (((b) + (HP300_SECTSIZE - 1)) / HP300_SECTSIZE)
998#define hp300_lifstob(s) ((s) * HP300_SECTSIZE)
999
1000
1001/* ------------------------------------------
1002 * hppa
1003 *
1004 */
1005
1006/*
1007 * volume header for "LIF" format volumes
1008 */
1009struct hppa_lifvol {
1010 uint16_t vol_id;
1011 uint8_t vol_label[6];
1012 uint32_t vol_addr;
1013 uint16_t vol_oct;
1014 uint16_t vol_dummy;
1015
1016 uint32_t vol_dirsize;
1017 uint16_t vol_version;
1018 uint16_t vol_zero;
1019 uint32_t vol_number;
1020 uint32_t vol_lastvol;
1021
1022 uint32_t vol_length;
1023 uint8_t vol_toc[6];
1024 uint8_t vol_dummy1[198];
1025
1026 uint32_t ipl_addr;
1027 uint32_t ipl_size;
1028 uint32_t ipl_entry;
1029
1030 uint32_t vol_dummy2;
1031};
1032
1033struct hppa_lifdir {
1034 uint8_t dir_name[10];
1035 uint16_t dir_type;
1036 uint32_t dir_addr;
1037 uint32_t dir_length;
1038 uint8_t dir_toc[6];
1039 uint16_t dir_flag;
1040 uint32_t dir_implement;
1041};
1042
1043struct hppa_lifload {
1044 int address;
1045 int count;
1046};
1047
1048#define HPPA_LIF_VOL_ID 0x8000
1049#define HPPA_LIF_VOL_OCT 0x1000
1050#define HPPA_LIF_DIR_SWAP 0x5243
1051#define HPPA_LIF_DIR_FS 0xcd38
1052#define HPPA_LIF_DIR_IOMAP 0xcd60
1053#define HPPA_LIF_DIR_HPUX 0xcd80
1054#define HPPA_LIF_DIR_ISL 0xce00
1055#define HPPA_LIF_DIR_PAD 0xcffe
1056#define HPPA_LIF_DIR_AUTO 0xcfff
1057#define HPPA_LIF_DIR_EST 0xd001
1058#define HPPA_LIF_DIR_TYPE 0xe942
1059
1060#define HPPA_LIF_DIR_FLAG 0x8001 /* dont ask me! */
1061#define HPPA_LIF_SECTSIZE 256
1062
1063#define HPPA_LIF_NUMDIR 8
1064
1065#define HPPA_LIF_VOLSTART 0
1066#define HPPA_LIF_VOLSIZE sizeof(struct hppa_lifvol)
1067#define HPPA_LIF_DIRSTART 2048
1068#define HPPA_LIF_DIRSIZE (HPPA_LIF_NUMDIR * sizeof(struct hppa_lifdir))
1069#define HPPA_LIF_FILESTART 4096
1070
1071#define hppa_btolifs(b) (((b) + (HPPA_LIF_SECTSIZE - 1)) / HPPA_LIF_SECTSIZE)
1072#define hppa_lifstob(s) ((s) * HPPA_LIF_SECTSIZE)
1073#define hppa_lifstodb(s) ((s) * HPPA_LIF_SECTSIZE / DEV_BSIZE)
1074
1075
1076/* ------------------------------------------
1077 * x86
1078 *
1079 */
1080
1081/*
1082 * Parameters for NetBSD /boot written to start of pbr code by installboot
1083 */
1084
1085struct x86_boot_params {
1086 uint32_t bp_length; /* length of patchable data */
1087 uint32_t bp_flags;
1088 uint32_t bp_timeout; /* boot timeout in seconds */
1089 uint32_t bp_consdev;
1090 uint32_t bp_conspeed;
1091 uint8_t bp_password[16]; /* md5 hash of password */
1092 char bp_keymap[64]; /* keyboard translation map */
1093 uint32_t bp_consaddr; /* ioaddr for console */
1094};
1095
1096#endif /* !defined(__ASSEMBLER__) */ /* } */
1097
1098#define X86_BOOT_MAGIC(n) ('x' << 24 | 0x86b << 12 | 'm' << 4 | (n))
1099#define X86_BOOT_MAGIC_1 X86_BOOT_MAGIC(1) /* pbr.S */
1100#define X86_BOOT_MAGIC_2 X86_BOOT_MAGIC(2) /* bootxx.S */
1101#define X86_BOOT_MAGIC_PXE X86_BOOT_MAGIC(3) /* start_pxe.S */
1102#define X86_BOOT_MAGIC_FAT X86_BOOT_MAGIC(4) /* fatboot.S */
1103#define X86_BOOT_MAGIC_EFI X86_BOOT_MAGIC(5) /* efiboot/start.S */
1104#define X86_MBR_GPT_MAGIC 0xedb88320 /* gpt.S */
1105
1106 /* values for bp_flags */
1107#define X86_BP_FLAGS_RESET_VIDEO 1
1108#define X86_BP_FLAGS_PASSWORD 2
1109#define X86_BP_FLAGS_NOMODULES 4
1110#define X86_BP_FLAGS_NOBOOTCONF 8
1111#define X86_BP_FLAGS_LBA64VALID 0x10
1112
1113 /* values for bp_consdev */
1114#define X86_BP_CONSDEV_PC 0
1115#define X86_BP_CONSDEV_COM0 1
1116#define X86_BP_CONSDEV_COM1 2
1117#define X86_BP_CONSDEV_COM2 3
1118#define X86_BP_CONSDEV_COM3 4
1119#define X86_BP_CONSDEV_COM0KBD 5
1120#define X86_BP_CONSDEV_COM1KBD 6
1121#define X86_BP_CONSDEV_COM2KBD 7
1122#define X86_BP_CONSDEV_COM3KBD 8
1123
1124/* ------------------------------------------
1125 * landisk
1126 */
1127
1128#if !defined(__ASSEMBLER__) /* { */
1129
1130/*
1131 * Parameters for NetBSD /boot written to start of pbr code by installboot
1132 */
1133struct landisk_boot_params {
1134 uint32_t bp_length; /* length of patchable data */
1135 uint32_t bp_flags;
1136 uint32_t bp_timeout; /* boot timeout in seconds */
1137 uint32_t bp_consdev;
1138 uint32_t bp_conspeed;
1139};
1140
1141#endif /* !defined(__ASSEMBLER__) */ /* } */
1142
1143#define LANDISK_BOOT_MAGIC_1 0x20031125
1144#define LANDISK_BOOT_MAGIC_2 0x20041110
1145
1146#if !defined(__ASSEMBLER__) /* { */
1147
1148/* ------------------------------------------
1149 * macppc
1150 */
1151
1152#define MACPPC_BOOT_BLOCK_OFFSET 2048
1153#define MACPPC_BOOT_BLOCK_BLOCKSIZE 512
1154#define MACPPC_BOOT_BLOCK_MAX_SIZE 2048 /* XXX: could be up to 6144 */
1155 /* Magic string -- 32 bytes long (including the NUL) */
1156#define MACPPC_BBINFO_MAGIC "NetBSD/macppc bootxx 20020515"
1157
1158/* ------------------------------------------
1159 * news68k, newsmips
1160 */
1161
1162#define NEWS_BOOT_BLOCK_LABELOFFSET 64 /* XXX from <machine/disklabel.h> */
1163#define NEWS_BOOT_BLOCK_OFFSET 0
1164#define NEWS_BOOT_BLOCK_BLOCKSIZE 512
1165#define NEWS_BOOT_BLOCK_MAX_SIZE (512 * 16)
1166
1167 /* Magic string -- 32 bytes long (including the NUL) */
1168#define NEWS68K_BBINFO_MAGIC "NetBSD/news68k bootxx 20020518"
1169#define NEWSMIPS_BBINFO_MAGIC "NetBSD/newsmips bootxx 20020518"
1170
1171/* ------------------------------------------
1172 * next68k
1173 */
1174
1175#define NEXT68K_LABEL_MAXPARTITIONS 8 /* number of partitions in next68k_disklabel */
1176#define NEXT68K_LABEL_CPULBLLEN 24
1177#define NEXT68K_LABEL_MAXDNMLEN 24
1178#define NEXT68K_LABEL_MAXTYPLEN 24
1179#define NEXT68K_LABEL_MAXBFLEN 24
1180#define NEXT68K_LABEL_MAXHNLEN 32
1181#define NEXT68K_LABEL_MAXMPTLEN 16
1182#define NEXT68K_LABEL_MAXFSTLEN 8
1183#define NEXT68K_LABEL_NBAD 1670 /* sized to make label ~= 8KB */
1184
1185struct next68k_partition {
1186 int32_t cp_offset; /* starting sector */
1187 int32_t cp_size; /* number of sectors in partition */
1188 int16_t cp_bsize; /* block size in bytes */
1189 int16_t cp_fsize; /* filesystem basic fragment size */
1190 char cp_opt; /* optimization type: 's'pace/'t'ime */
1191 char cp_pad1;
1192 int16_t cp_cpg; /* filesystem cylinders per group */
1193 int16_t cp_density; /* bytes per inode density */
1194 int8_t cp_minfree; /* minfree (%) */
1195 int8_t cp_newfs; /* run newfs during init */
1196 char cp_mountpt[NEXT68K_LABEL_MAXMPTLEN];
1197 /* default/standard mount point */
1198 int8_t cp_automnt; /* auto-mount when inserted */
1199 char cp_type[NEXT68K_LABEL_MAXFSTLEN]; /* file system type name */
1200 char cp_pad2;
1201} __packed;
1202
1203/* The disklabel the way it is on the disk */
1204struct next68k_disklabel {
1205 int32_t cd_version; /* label version */
1206 int32_t cd_label_blkno; /* block # of this label */
1207 int32_t cd_size; /* size of media area (sectors) */
1208 char cd_label[NEXT68K_LABEL_CPULBLLEN]; /* disk name (label) */
1209 uint32_t cd_flags; /* flags */
1210 uint32_t cd_tag; /* volume tag */
1211 char cd_name[NEXT68K_LABEL_MAXDNMLEN]; /* drive (hardware) name */
1212 char cd_type[NEXT68K_LABEL_MAXTYPLEN]; /* drive type */
1213 int32_t cd_secsize; /* # of bytes per sector */
1214 int32_t cd_ntracks; /* # of tracks per cylinder */
1215 int32_t cd_nsectors; /* # of data sectors per track */
1216 int32_t cd_ncylinders; /* # of data cylinders per unit */
1217 int32_t cd_rpm; /* rotational speed */
1218 int16_t cd_front; /* # of sectors in "front porch" */
1219 int16_t cd_back; /* # of sectors in "back porch" */
1220 int16_t cd_ngroups; /* # of alt groups */
1221 int16_t cd_ag_size; /* alt group size (sectors) */
1222 int16_t cd_ag_alts; /* alternate sectors / alt group */
1223 int16_t cd_ag_off; /* sector offset to first alternate */
1224 int32_t cd_boot_blkno[2]; /* boot program locations */
1225 char cd_kernel[NEXT68K_LABEL_MAXBFLEN]; /* default kernel name */
1226 char cd_hostname[NEXT68K_LABEL_MAXHNLEN];
1227 /* host name (usu. where disk was labeled) */
1228 char cd_rootpartition; /* root partition letter e.g. 'a' */
1229 char cd_rwpartition; /* r/w partition letter e.g. 'b' */
1230 struct next68k_partition cd_partitions[NEXT68K_LABEL_MAXPARTITIONS];
1231
1232 union {
1233 uint16_t CD_v3_checksum; /* label version 3 checksum */
1234 int32_t CD_bad[NEXT68K_LABEL_NBAD];
1235 /* block number that is bad */
1236 } cd_un;
1237 uint16_t cd_checksum; /* label version 1 or 2 checksum */
1238} __packed;
1239
1240#define NEXT68K_LABEL_cd_checksum cd_checksum
1241#define NEXT68K_LABEL_cd_v3_checksum cd_un.CD_v3_checksum
1242#define NEXT68K_LABEL_cd_bad cd_un.CD_bad
1243
1244#define NEXT68K_LABEL_SECTOR 0 /* sector containing label */
1245#define NEXT68K_LABEL_OFFSET 0 /* offset of label in sector */
1246#define NEXT68K_LABEL_SIZE 8192 /* size of label */
1247#define NEXT68K_LABEL_CD_V1 0x4e655854 /* version #1: "NeXT" */
1248#define NEXT68K_LABEL_CD_V2 0x646c5632 /* version #2: "dlV2" */
1249#define NEXT68K_LABEL_CD_V3 0x646c5633 /* version #3: "dlV3" */
1250#define NEXT68K_LABEL_DEFAULTFRONTPORCH (160 * 2)
1251#define NEXT68K_LABEL_DEFAULTBOOT0_1 (32 * 2)
1252#define NEXT68K_LABEL_DEFAULTBOOT0_2 (96 * 2)
1253
1254/* ------------------------------------------
1255 * pmax --
1256 * PMAX (DECstation / MIPS) boot block information
1257 */
1258
1259/*
1260 * If mode is 0, there is just one sequence of blocks and one Dec_BootMap
1261 * is used. If mode is 1, there are multiple sequences of blocks
1262 * and multiple Dec_BootMaps are used, the last with numBlocks = 0.
1263 */
1264struct pmax_boot_map {
1265 int32_t num_blocks; /* Number of blocks to read. */
1266 int32_t start_block; /* Starting block on disk. */
1267};
1268
1269/*
1270 * This is the structure of a disk or tape boot block. The boot_map
1271 * can either be a single boot count and start block (contiguous mode)
1272 * or a list of up to 61 (to fill a 512 byte sector) block count and
1273 * start block pairs. Under NetBSD, contiguous mode is always used.
1274 */
1275struct pmax_boot_block {
1276 uint8_t pad[8];
1277 int32_t magic; /* PMAX_BOOT_MAGIC */
1278 int32_t mode; /* Mode for boot info. */
1279 uint32_t load_addr; /* Address to start loading. */
1280 uint32_t exec_addr; /* Address to start execing. */
1281 struct pmax_boot_map map[61]; /* boot program section(s). */
1282} __packed;
1283
1284#define PMAX_BOOT_MAGIC 0x0002757a
1285#define PMAX_BOOTMODE_CONTIGUOUS 0
1286#define PMAX_BOOTMODE_SCATTERED 1
1287
1288#define PMAX_BOOT_BLOCK_OFFSET 0
1289#define PMAX_BOOT_BLOCK_BLOCKSIZE 512
1290
1291
1292/* ------------------------------------------
1293 * sgimips
1294 */
1295
1296/*
1297 * Some IRIX man pages refer to the size being a multiple of whole cylinders.
1298 * Later ones only refer to the size being "typically" 2MB. IRIX fx(1)
1299 * uses a default drive geometry if one can't be determined, suggesting
1300 * that "whole cylinder" multiples are not required.
1301 */
1302
1303#define SGI_BOOT_BLOCK_SIZE_VOLHDR 3135
1304#define SGI_BOOT_BLOCK_MAGIC 0xbe5a941
1305#define SGI_BOOT_BLOCK_MAXPARTITIONS 16
1306#define SGI_BOOT_BLOCK_MAXVOLDIRS 15
1307#define SGI_BOOT_BLOCK_BLOCKSIZE 512
1308
1309/*
1310 * SGI partition conventions:
1311 *
1312 * Partition 0 - root
1313 * Partition 1 - swap
1314 * Partition 6 - usr
1315 * Partition 7 - volume body
1316 * Partition 8 - volume header
1317 * Partition 10 - whole disk
1318 */
1319
1320struct sgi_boot_devparms {
1321 uint8_t dp_skew;
1322 uint8_t dp_gap1;
1323 uint8_t dp_gap2;
1324 uint8_t dp_spares_cyl;
1325 uint16_t dp_cyls;
1326 uint16_t dp_shd0;
1327 uint16_t dp_trks0;
1328 uint8_t dp_ctq_depth;
1329 uint8_t dp_cylshi;
1330 uint16_t dp_unused;
1331 uint16_t dp_secs;
1332 uint16_t dp_secbytes;
1333 uint16_t dp_interleave;
1334 uint32_t dp_flags;
1335 uint32_t dp_datarate;
1336 uint32_t dp_nretries;
1337 uint32_t dp_mspw;
1338 uint16_t dp_xgap1;
1339 uint16_t dp_xsync;
1340 uint16_t dp_xrdly;
1341 uint16_t dp_xgap2;
1342 uint16_t dp_xrgate;
1343 uint16_t dp_xwcont;
1344} __packed;
1345
1346struct sgi_boot_block {
1347 uint32_t magic;
1348 int16_t root;
1349 int16_t swap;
1350 char bootfile[16];
1351 struct sgi_boot_devparms dp;
1352 struct {
1353 char name[8];
1354 int32_t block;
1355 int32_t bytes;
1356 } voldir[SGI_BOOT_BLOCK_MAXVOLDIRS];
1357 struct {
1358 int32_t blocks;
1359 int32_t first;
1360 int32_t type;
1361 } partitions[SGI_BOOT_BLOCK_MAXPARTITIONS];
1362 int32_t checksum;
1363 int32_t _pad;
1364} __packed;
1365
1366#define SGI_PTYPE_VOLHDR 0
1367#define SGI_PTYPE_TRKREPL 1
1368#define SGI_PTYPE_SECREPL 2
1369#define SGI_PTYPE_RAW 3
1370#define SGI_PTYPE_BSD 4
1371#define SGI_PTYPE_SYSV 5
1372#define SGI_PTYPE_VOLUME 6
1373#define SGI_PTYPE_EFS 7
1374#define SGI_PTYPE_LVOL 8
1375#define SGI_PTYPE_RLVOL 9
1376#define SGI_PTYPE_XFS 10
1377#define SGI_PTYPE_XFSLOG 11
1378#define SGI_PTYPE_XLV 12
1379#define SGI_PTYPE_XVM 13
1380
1381/* ------------------------------------------
1382 * sparc
1383 */
1384
1385#define SPARC_BOOT_BLOCK_OFFSET 512
1386#define SPARC_BOOT_BLOCK_BLOCKSIZE 512
1387#define SPARC_BOOT_BLOCK_MAX_SIZE (512 * 15)
1388 /* Magic string -- 32 bytes long (including the NUL) */
1389#define SPARC_BBINFO_MAGIC "NetBSD/sparc bootxx 20020515"
1390
1391
1392/* ------------------------------------------
1393 * sparc64
1394 */
1395
1396#define SPARC64_BOOT_BLOCK_OFFSET 512
1397#define SPARC64_BOOT_BLOCK_BLOCKSIZE 512
1398#define SPARC64_BOOT_BLOCK_MAX_SIZE (512 * 15)
1399
1400
1401/* ------------------------------------------
1402 * sun68k (sun2, sun3)
1403 */
1404
1405#define SUN68K_BOOT_BLOCK_OFFSET 512
1406#define SUN68K_BOOT_BLOCK_BLOCKSIZE 512
1407#define SUN68K_BOOT_BLOCK_MAX_SIZE (512 * 15)
1408 /* Magic string -- 32 bytes long (including the NUL) */
1409#define SUN68K_BBINFO_MAGIC "NetBSD/sun68k bootxx 20020515"
1410
1411
1412/* ------------------------------------------
1413 * vax --
1414 * VAX boot block information
1415 */
1416
1417struct vax_boot_block {
1418/* Note that these don't overlap any of the pmax boot block */
1419 uint8_t pad0[2];
1420 uint8_t bb_id_offset; /* offset in words to id (magic1)*/
1421 uint8_t bb_mbone; /* must be one */
1422 uint16_t bb_lbn_hi; /* lbn (hi word) of bootstrap */
1423 uint16_t bb_lbn_low; /* lbn (low word) of bootstrap */
1424 uint8_t pad1[406];
1425 /* disklabel offset is 64 from base, or 56 from start of pad1 */
1426
1427 /* The rest of these fields are identification area and describe
1428 * the secondary block for uVAX VMB.
1429 */
1430 uint8_t bb_magic1; /* magic number */
1431 uint8_t bb_mbz1; /* must be zero */
1432 uint8_t bb_pad1; /* any value */
1433 uint8_t bb_sum1; /* ~(magic1 + mbz1 + pad1) */
1434
1435 uint8_t bb_mbz2; /* must be zero */
1436 uint8_t bb_volinfo; /* volinfo */
1437 uint8_t bb_pad2a; /* any value */
1438 uint8_t bb_pad2b; /* any value */
1439
1440 uint32_t bb_size; /* size in blocks of bootstrap */
1441 uint32_t bb_load; /* load offset to bootstrap */
1442 uint32_t bb_entry; /* byte offset in bootstrap */
1443 uint32_t bb_sum3; /* sum of previous 3 fields */
1444
1445 /* The rest is unused.
1446 */
1447 uint8_t pad2[74];
1448} __packed;
1449
1450#define VAX_BOOT_MAGIC1 0x18 /* size of BB info? */
1451#define VAX_BOOT_VOLINFO_NONE 0x00 /* no special info */
1452#define VAX_BOOT_VOLINFO_SS 0x01 /* single sided */
1453#define VAX_BOOT_VOLINFO_DS 0x81 /* double sided */
1454
1455#define VAX_BOOT_SIZE 15 /* 15 blocks */
1456#define VAX_BOOT_LOAD 0 /* no load offset */
1457#define VAX_BOOT_ENTRY 0x200 /* one block in */
1458
1459#define VAX_BOOT_BLOCK_OFFSET 0
1460#define VAX_BOOT_BLOCK_BLOCKSIZE 512
1461
1462
1463/* ------------------------------------------
1464 * x68k
1465 */
1466
1467#define X68K_BOOT_BLOCK_OFFSET 0
1468#define X68K_BOOT_BLOCK_BLOCKSIZE 512
1469#define X68K_BOOT_BLOCK_MAX_SIZE (512 * 16)
1470 /* Magic string -- 32 bytes long (including the NUL) */
1471#define X68K_BBINFO_MAGIC "NetBSD/x68k bootxx 20020601"
1472
1473#endif /* !defined(__ASSEMBLER__) */ /* } */
1474
1475#endif /* !_SYS_BOOTBLOCK_H */