1/* $NetBSD: bootblock.h,v 1.62 2026/01/09 15:43:07 nia 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#include <sys/endian.h>
127#if defined(_KERNEL) || defined(_STANDALONE)
128#include <sys/stdint.h>
129#else
130#include <stdint.h>
131#endif
132#endif /* !defined(__ASSEMBLER__) */
133
134/* ------------------------------------------
135 * MBR (Master Boot Record) --
136 * definitions for systems that use MBRs
137 */
138
139/*
140 * Layout of boot records:
141 *
142 * Byte range Use Description
143 * ---------- --- -----------
144 *
145 * 0 - 2 FMP JMP xxx, NOP
146 * 3 - 10 FP OEM Name
147 *
148 * 11 - 61 FMP FAT12/16 BPB
149 * Whilst not strictly necessary for MBR,
150 * GRUB reserves this area
151 *
152 * 11 - 89 P FAT32 BPB
153 * (are we ever going to boot off this?)
154 *
155 *
156 * 62 - 217 FMP Boot code
157 *
158 * 90 - 217 P FAT32 boot code
159 *
160 * 218 - 223 M Win95b/98/me "drive time"
161 * http://www.geocities.com/thestarman3/asm/mbr/95BMEMBR.htm#MYST
162 * only changed if all 6 bytes are 0
163 *
164 * 224 - 436 FMP boot code (continued)
165 *
166 * 437 - 439 M WinNT/2K/XP MBR "boot language"
167 * http://www.geocities.com/thestarman3/asm/mbr/Win2kmbr.htm
168 * not needed by us
169 *
170 * 400 - 439 MP NetBSD: mbr_bootsel
171 *
172 * 424 - 439 M NetBSD: bootptn_guid (in GPT PMBR only)
173 *
174 * 440 - 443 M WinNT/2K/XP Drive Serial Number (NT DSN)
175 * http://www.geocities.com/thestarman3/asm/mbr/Win2kmbr.htm
176 *
177 * 444 - 445 FMP bootcode or unused
178 * NetBSD: mbr_bootsel_magic
179 *
180 * 446 - 509 M partition table
181 *
182 * 510 - 511 FMP magic number (0xAA55)
183 *
184 * Use:
185 * ----
186 * F Floppy boot sector
187 * M Master Boot Record
188 * P Partition Boot record
189 *
190 */
191
192/*
193 * MBR (Master Boot Record)
194 */
195#define MBR_BBSECTOR 0 /* MBR relative sector # */
196#define MBR_BPB_OFFSET 11 /* offsetof(mbr_sector, mbr_bpb) */
197#define MBR_BOOTCODE_OFFSET 90 /* offsetof(mbr_sector, mbr_bootcode) */
198#define MBR_BS_OFFSET 400 /* offsetof(mbr_sector, mbr_bootsel) */
199#define MBR_BS_OLD_OFFSET 404 /* where mbr_bootsel used to be */
200#define MBR_GPT_GUID_OFFSET 424 /* location of partition GUID to boot */
201#define MBR_GPT_GUID_DEFAULT /* default uninitialized GUID */ \
202 {0xeee69d04,0x02f4,0x11e0,0x8f,0x5d,{0x00,0xe0,0x81,0x52,0x9a,0x6b}}
203#define MBR_DSN_OFFSET 440 /* offsetof(mbr_sector, mbr_dsn) */
204#define MBR_BS_MAGIC_OFFSET 444 /* offsetof(mbr_sector, mbr_bootsel_magic) */
205#define MBR_PART_OFFSET 446 /* offsetof(mbr_sector, mbr_part[0]) */
206#define MBR_MAGIC_OFFSET 510 /* offsetof(mbr_sector, mbr_magic) */
207#define MBR_MAGIC 0xaa55 /* MBR magic number */
208#define MBR_BS_MAGIC 0xb5e1 /* mbr_bootsel magic number */
209#define MBR_PART_COUNT 4 /* Number of partitions in MBR */
210#define MBR_BS_PARTNAMESIZE 8 /* Size of name mbr_bootsel nametab */
211 /* (excluding trailing NUL) */
212
213 /* values for mbr_partition.mbrp_flag */
214#define MBR_PFLAG_ACTIVE 0x80 /* The active partition */
215
216 /* values for mbr_partition.mbrp_type */
217#define MBR_PTYPE_UNUSED 0x00 /* Unused */
218#define MBR_PTYPE_FAT12 0x01 /* 12-bit FAT */
219#define MBR_PTYPE_XENIX_ROOT 0x02 /* XENIX / */
220#define MBR_PTYPE_XENIX_USR 0x03 /* XENIX /usr */
221#define MBR_PTYPE_FAT16S 0x04 /* 16-bit FAT, less than 32M */
222#define MBR_PTYPE_EXT 0x05 /* extended partition */
223#define MBR_PTYPE_FAT16B 0x06 /* 16-bit FAT, more than 32M */
224#define MBR_PTYPE_NTFS 0x07 /* OS/2 HPFS, NTFS, QNX2, Adv. UNIX */
225#define MBR_PTYPE_DELL 0x08 /* AIX or os, or etc. */
226#define MBR_PTYPE_AIX_BOOT 0x09 /* AIX boot partition or Coherent */
227#define MBR_PTYPE_OS2_BOOT 0x0a /* O/2 boot manager or Coherent swap */
228#define MBR_PTYPE_FAT32 0x0b /* 32-bit FAT */
229#define MBR_PTYPE_FAT32L 0x0c /* 32-bit FAT, LBA-mapped */
230#define MBR_PTYPE_7XXX 0x0d /* 7XXX, LBA-mapped */
231#define MBR_PTYPE_FAT16L 0x0e /* 16-bit FAT, LBA-mapped */
232#define MBR_PTYPE_EXT_LBA 0x0f /* extended partition, LBA-mapped */
233#define MBR_PTYPE_OPUS 0x10 /* OPUS */
234#define MBR_PTYPE_OS2_DOS12 0x11 /* OS/2 DOS 12-bit FAT */
235#define MBR_PTYPE_COMPAQ_DIAG 0x12 /* Compaq diagnostics */
236#define MBR_PTYPE_OS2_DOS16S 0x14 /* OS/2 DOS 16-bit FAT <32M */
237#define MBR_PTYPE_OS2_DOS16B 0x16 /* OS/2 DOS 16-bit FAT >=32M */
238#define MBR_PTYPE_OS2_IFS 0x17 /* OS/2 hidden IFS */
239#define MBR_PTYPE_AST_SWAP 0x18 /* AST Windows swapfile */
240#define MBR_PTYPE_WILLOWTECH 0x19 /* Willowtech Photon coS */
241#define MBR_PTYPE_HID_FAT32 0x1b /* hidden win95 fat 32 */
242#define MBR_PTYPE_HID_FAT32_LBA 0x1c /* hidden win95 fat 32 lba */
243#define MBR_PTYPE_HID_FAT16_LBA 0x1d /* hidden win95 fat 16 lba */
244#define MBR_PTYPE_WILLOWSOFT 0x20 /* Willowsoft OFS1 */
245#define MBR_PTYPE_RESERVED_x21 0x21 /* reserved */
246#define MBR_PTYPE_RESERVED_x23 0x23 /* reserved */
247#define MBR_PTYPE_RESERVED_x24 0x24 /* NEC DOS */
248#define MBR_PTYPE_RESERVED_x26 0x26 /* reserved */
249#define MBR_PTYPE_RESERVED_x31 0x31 /* reserved */
250#define MBR_PTYPE_NOS 0x32 /* Alien Internet Services NOS */
251#define MBR_PTYPE_RESERVED_x33 0x33 /* reserved */
252#define MBR_PTYPE_RESERVED_x34 0x34 /* reserved */
253#define MBR_PTYPE_OS2_JFS 0x35 /* JFS on OS2 */
254#define MBR_PTYPE_RESERVED_x36 0x36 /* reserved */
255#define MBR_PTYPE_THEOS 0x38 /* Theos */
256#define MBR_PTYPE_PLAN9 0x39 /* Plan 9, or Theos spanned */
257#define MBR_PTYPE_THEOS_4GB 0x3a /* Theos ver 4 4gb partition */
258#define MBR_PTYPE_THEOS_EXT 0x3b /* Theos ve 4 extended partition */
259#define MBR_PTYPE_PMRECOVERY 0x3c /* PartitionMagic recovery */
260#define MBR_PTYPE_HID_NETWARE 0x3d /* Hidden Netware */
261#define MBR_PTYPE_VENIX 0x40 /* VENIX 286 or LynxOS */
262#define MBR_PTYPE_PREP 0x41 /* PReP */
263#define MBR_PTYPE_DRDOS_LSWAP 0x42 /* linux swap sharing DRDOS disk */
264#define MBR_PTYPE_DRDOS_LINUX 0x43 /* linux sharing DRDOS disk */
265#define MBR_PTYPE_GOBACK 0x44 /* GoBack change utility */
266#define MBR_PTYPE_BOOT_US 0x45 /* Boot US Boot manager */
267#define MBR_PTYPE_EUMEL_x46 0x46 /* EUMEL/Elan or Ergos 3 */
268#define MBR_PTYPE_EUMEL_x47 0x47 /* EUMEL/Elan or Ergos 3 */
269#define MBR_PTYPE_EUMEL_x48 0x48 /* EUMEL/Elan or Ergos 3 */
270#define MBR_PTYPE_ALFS_THIN 0x4a /* ALFX/THIN filesystem for DOS */
271#define MBR_PTYPE_OBERON 0x4c /* Oberon partition */
272#define MBR_PTYPE_QNX4X 0x4d /* QNX4.x */
273#define MBR_PTYPE_QNX4X_2 0x4e /* QNX4.x 2nd part */
274#define MBR_PTYPE_QNX4X_3 0x4f /* QNX4.x 3rd part */
275#define MBR_PTYPE_DM 0x50 /* DM (disk manager) */
276#define MBR_PTYPE_DM6_AUX1 0x51 /* DM6 Aux1 (or Novell) */
277#define MBR_PTYPE_CPM 0x52 /* CP/M or Microport SysV/AT */
278#define MBR_PTYPE_DM6_AUX3 0x53 /* DM6 Aux3 */
279#define MBR_PTYPE_DM6_DDO 0x54 /* DM6 DDO */
280#define MBR_PTYPE_EZDRIVE 0x55 /* EZ-Drive (disk manager) */
281#define MBR_PTYPE_GOLDEN_BOW 0x56 /* Golden Bow (disk manager) */
282#define MBR_PTYPE_DRIVE_PRO 0x57 /* Drive PRO */
283#define MBR_PTYPE_PRIAM_EDISK 0x5c /* Priam Edisk (disk manager) */
284#define MBR_PTYPE_SPEEDSTOR 0x61 /* SpeedStor */
285#define MBR_PTYPE_HURD 0x63 /* GNU HURD or Mach or Sys V/386 */
286#define MBR_PTYPE_NOVELL_2XX 0x64 /* Novell Netware 2.xx or Speedstore */
287#define MBR_PTYPE_NOVELL_3XX 0x65 /* Novell Netware 3.xx */
288#define MBR_PTYPE_NOVELL_386 0x66 /* Novell 386 Netware */
289#define MBR_PTYPE_NOVELL_x67 0x67 /* Novell */
290#define MBR_PTYPE_NOVELL_x68 0x68 /* Novell */
291#define MBR_PTYPE_NOVELL_x69 0x69 /* Novell */
292#define MBR_PTYPE_DISKSECURE 0x70 /* DiskSecure Multi-Boot */
293#define MBR_PTYPE_RESERVED_x71 0x71 /* reserved */
294#define MBR_PTYPE_RESERVED_x73 0x73 /* reserved */
295#define MBR_PTYPE_RESERVED_x74 0x74 /* reserved */
296#define MBR_PTYPE_PCIX 0x75 /* PC/IX */
297#define MBR_PTYPE_RESERVED_x76 0x76 /* reserved */
298#define MBR_PTYPE_M2FS_M2CS 0x77 /* M2FS/M2CS partition */
299#define MBR_PTYPE_XOSL_FS 0x78 /* XOSL boot loader filesystem */
300#define MBR_PTYPE_MINIX_14A 0x80 /* MINIX until 1.4a */
301#define MBR_PTYPE_MINIX_14B 0x81 /* MINIX since 1.4b */
302#define MBR_PTYPE_LNXSWAP 0x82 /* Linux swap or Solaris */
303#define MBR_PTYPE_LNXEXT2 0x83 /* Linux native */
304#define MBR_PTYPE_OS2_C 0x84 /* OS/2 hidden C: drive */
305#define MBR_PTYPE_EXT_LNX 0x85 /* Linux extended partition */
306#define MBR_PTYPE_NTFATVOL 0x86 /* NT FAT volume set */
307#define MBR_PTYPE_NTFSVOL 0x87 /* NTFS volume set or HPFS mirrored */
308#define MBR_PTYPE_LNX_KERNEL 0x8a /* Linux Kernel AiR-BOOT partition */
309#define MBR_PTYPE_FT_FAT32 0x8b /* Legacy Fault tolerant FAT32 */
310#define MBR_PTYPE_FT_FAT32_EXT 0x8c /* Legacy Fault tolerant FAT32 ext */
311#define MBR_PTYPE_HID_FR_FD_12 0x8d /* Hidden free FDISK FAT12 */
312#define MBR_PTYPE_LNX_LVM 0x8e /* Linux Logical Volume Manager */
313#define MBR_PTYPE_HID_FR_FD_16 0x90 /* Hidden free FDISK FAT16 */
314#define MBR_PTYPE_HID_FR_FD_EXT 0x91 /* Hidden free FDISK DOS EXT */
315#define MBR_PTYPE_HID_FR_FD_16B 0x92 /* Hidden free FDISK FAT16 Big */
316#define MBR_PTYPE_AMOEBA_FS 0x93 /* Amoeba filesystem */
317#define MBR_PTYPE_AMOEBA_BAD 0x94 /* Amoeba bad block table */
318#define MBR_PTYPE_MIT_EXOPC 0x95 /* MIT EXOPC native partitions */
319#define MBR_PTYPE_HID_FR_FD_32 0x97 /* Hidden free FDISK FAT32 */
320#define MBR_PTYPE_DATALIGHT 0x98 /* Datalight ROM-DOS Super-Boot */
321#define MBR_PTYPE_MYLEX 0x99 /* Mylex EISA SCSI */
322#define MBR_PTYPE_HID_FR_FD_16L 0x9a /* Hidden free FDISK FAT16 LBA */
323#define MBR_PTYPE_HID_FR_FD_EXL 0x9b /* Hidden free FDISK EXT LBA */
324#define MBR_PTYPE_BSDI 0x9f /* BSDI? */
325#define MBR_PTYPE_IBM_HIB 0xa0 /* IBM Thinkpad hibernation */
326#define MBR_PTYPE_HP_VOL_xA1 0xa1 /* HP Volume expansion (SpeedStor) */
327#define MBR_PTYPE_HP_VOL_xA3 0xa3 /* HP Volume expansion (SpeedStor) */
328#define MBR_PTYPE_HP_VOL_xA4 0xa4 /* HP Volume expansion (SpeedStor) */
329#define MBR_PTYPE_386BSD 0xa5 /* 386BSD partition type */
330#define MBR_PTYPE_OPENBSD 0xa6 /* OpenBSD partition type */
331#define MBR_PTYPE_NEXTSTEP_486 0xa7 /* NeXTSTEP 486 */
332#define MBR_PTYPE_APPLE_UFS 0xa8 /* Apple UFS */
333#define MBR_PTYPE_NETBSD 0xa9 /* NetBSD partition type */
334#define MBR_PTYPE_OLIVETTI 0xaa /* Olivetty Fat12 1.44MB Service part */
335#define MBR_PTYPE_APPLE_BOOT 0xab /* Apple Boot */
336#define MBR_PTYPE_SHAG_OS 0xae /* SHAG OS filesystem */
337#define MBR_PTYPE_APPLE_HFS 0xaf /* Apple HFS */
338#define MBR_PTYPE_BOOTSTAR_DUM 0xb0 /* BootStar Dummy */
339#define MBR_PTYPE_RESERVED_xB1 0xb1 /* reserved */
340#define MBR_PTYPE_RESERVED_xB3 0xb3 /* reserved */
341#define MBR_PTYPE_RESERVED_xB4 0xb4 /* reserved */
342#define MBR_PTYPE_RESERVED_xB6 0xb6 /* reserved */
343#define MBR_PTYPE_BSDI_386 0xb7 /* BSDI BSD/386 filesystem */
344#define MBR_PTYPE_BSDI_SWAP 0xb8 /* BSDI BSD/386 swap */
345#define MBR_PTYPE_BOOT_WIZARD 0xbb /* Boot Wizard Hidden */
346#define MBR_PTYPE_SOLARIS_8 0xbe /* Solaris 8 partition type */
347#define MBR_PTYPE_SOLARIS 0xbf /* Solaris partition type */
348#define MBR_PTYPE_CTOS 0xc0 /* CTOS */
349#define MBR_PTYPE_DRDOS_FAT12 0xc1 /* DRDOS/sec (FAT-12) */
350#define MBR_PTYPE_HID_LNX 0xc2 /* Hidden Linux */
351#define MBR_PTYPE_HID_LNX_SWAP 0xc3 /* Hidden Linux swap */
352#define MBR_PTYPE_DRDOS_FAT16S 0xc4 /* DRDOS/sec (FAT-16, < 32M) */
353#define MBR_PTYPE_DRDOS_EXT 0xc5 /* DRDOS/sec (EXT) */
354#define MBR_PTYPE_DRDOS_FAT16B 0xc6 /* DRDOS/sec (FAT-16, >= 32M) */
355#define MBR_PTYPE_SYRINX 0xc7 /* Syrinx (Cyrnix?) or HPFS disabled */
356#define MBR_PTYPE_DRDOS_8_xC8 0xc8 /* Reserved for DR-DOS 8.0+ */
357#define MBR_PTYPE_DRDOS_8_xC9 0xc9 /* Reserved for DR-DOS 8.0+ */
358#define MBR_PTYPE_DRDOS_8_xCA 0xca /* Reserved for DR-DOS 8.0+ */
359#define MBR_PTYPE_DRDOS_74_CHS 0xcb /* DR-DOS 7.04+ Secured FAT32 CHS */
360#define MBR_PTYPE_DRDOS_74_LBA 0xcc /* DR-DOS 7.04+ Secured FAT32 LBA */
361#define MBR_PTYPE_CTOS_MEMDUMP 0xcd /* CTOS Memdump */
362#define MBR_PTYPE_DRDOS_74_16X 0xce /* DR-DOS 7.04+ FAT16X LBA */
363#define MBR_PTYPE_DRDOS_74_EXT 0xcf /* DR-DOS 7.04+ EXT LBA */
364#define MBR_PTYPE_REAL32 0xd0 /* REAL/32 secure big partition */
365#define MBR_PTYPE_MDOS_FAT12 0xd1 /* Old Multiuser DOS FAT12 */
366#define MBR_PTYPE_MDOS_FAT16S 0xd4 /* Old Multiuser DOS FAT16 Small */
367#define MBR_PTYPE_MDOS_EXT 0xd5 /* Old Multiuser DOS Extended */
368#define MBR_PTYPE_MDOS_FAT16B 0xd6 /* Old Multiuser DOS FAT16 Big */
369#define MBR_PTYPE_CPM_86 0xd8 /* CP/M 86 */
370#define MBR_PTYPE_CONCURRENT 0xdb /* CP/M or Concurrent CP/M */
371#define MBR_PTYPE_HID_CTOS_MEM 0xdd /* Hidden CTOS Memdump */
372#define MBR_PTYPE_DELL_UTIL 0xde /* Dell PowerEdge Server utilities */
373#define MBR_PTYPE_DGUX_VIRTUAL 0xdf /* DG/UX virtual disk manager */
374#define MBR_PTYPE_STMICROELEC 0xe0 /* STMicroelectronics ST AVFS */
375#define MBR_PTYPE_DOS_ACCESS 0xe1 /* DOS access or SpeedStor 12-bit */
376#define MBR_PTYPE_STORDIM 0xe3 /* DOS R/O or Storage Dimensions */
377#define MBR_PTYPE_SPEEDSTOR_16S 0xe4 /* SpeedStor 16-bit FAT < 1024 cyl. */
378#define MBR_PTYPE_RESERVED_xE5 0xe5 /* reserved */
379#define MBR_PTYPE_RESERVED_xE6 0xe6 /* reserved */
380#define MBR_PTYPE_BEOS 0xeb /* BeOS */
381#define MBR_PTYPE_PMBR 0xee /* GPT Protective MBR */
382#define MBR_PTYPE_EFI 0xef /* EFI system partition */
383#define MBR_PTYPE_LNX_PA_RISC 0xf0 /* Linux PA-RISC boot loader */
384#define MBR_PTYPE_SPEEDSTOR_X 0xf1 /* SpeedStor or Storage Dimensions */
385#define MBR_PTYPE_DOS33_SEC 0xf2 /* DOS 3.3+ Secondary */
386#define MBR_PTYPE_RESERVED_xF3 0xf3 /* reserved */
387#define MBR_PTYPE_SPEEDSTOR_L 0xf4 /* SpeedStor large partition */
388#define MBR_PTYPE_PROLOGUE 0xf5 /* Prologue multi-volumen partition */
389#define MBR_PTYPE_RESERVED_xF6 0xf6 /* reserved */
390#define MBR_PTYPE_PCACHE 0xf9 /* pCache: ext2/ext3 persistent cache */
391#define MBR_PTYPE_BOCHS 0xfa /* Bochs x86 emulator */
392#define MBR_PTYPE_VMWARE 0xfb /* VMware File System */
393#define MBR_PTYPE_VMWARE_SWAP 0xfc /* VMware Swap */
394#define MBR_PTYPE_LNX_RAID 0xfd /* Linux RAID partition persistent sb */
395#define MBR_PTYPE_LANSTEP 0xfe /* LANstep or IBM PS/2 IML */
396#define MBR_PTYPE_XENIX_BAD 0xff /* Xenix Bad Block Table */
397
398#ifdef MBRPTYPENAMES
399static const struct mbr_ptype {
400 int id;
401 const char *name;
402} mbr_ptypes[] = {
403 { MBR_PTYPE_UNUSED, "<UNUSED>" },
404 { MBR_PTYPE_FAT12, "Primary DOS with 12 bit FAT" },
405 { MBR_PTYPE_XENIX_ROOT, "XENIX / filesystem" },
406 { MBR_PTYPE_XENIX_USR, "XENIX /usr filesystem" },
407 { MBR_PTYPE_FAT16S, "Primary DOS with 16 bit FAT <32M" },
408 { MBR_PTYPE_EXT, "Extended partition" },
409 { MBR_PTYPE_FAT16B, "Primary 'big' DOS, 16-bit FAT (> 32MB)" },
410 { MBR_PTYPE_NTFS, "NTFS, OS/2 HPFS, QNX2 or Advanced UNIX" },
411 { MBR_PTYPE_DELL, "AIX filesystem or OS/2 (thru v1.3) or DELL "
412 "multiple drives or Commodore DOS or SplitDrive" },
413 { MBR_PTYPE_AIX_BOOT, "AIX boot partition or Coherent" },
414 { MBR_PTYPE_OS2_BOOT, "OS/2 Boot Manager or Coherent swap or OPUS" },
415 { MBR_PTYPE_FAT32, "Primary DOS with 32 bit FAT" },
416 { MBR_PTYPE_FAT32L, "Primary DOS with 32 bit FAT - LBA" },
417 { MBR_PTYPE_7XXX, "Type 7??? - LBA" },
418 { MBR_PTYPE_FAT16L, "DOS (16-bit FAT) - LBA" },
419 { MBR_PTYPE_EXT_LBA, "Ext. partition - LBA" },
420 { MBR_PTYPE_OPUS, "OPUS" },
421 { MBR_PTYPE_OS2_DOS12, "OS/2 BM: hidden DOS 12-bit FAT" },
422 { MBR_PTYPE_COMPAQ_DIAG, "Compaq diagnostics" },
423 { MBR_PTYPE_OS2_DOS16S, "OS/2 BM: hidden DOS 16-bit FAT <32M "
424 "or Novell DOS 7.0 bug" },
425 { MBR_PTYPE_OS2_DOS16B, "OS/2 BM: hidden DOS 16-bit FAT >=32M" },
426 { MBR_PTYPE_OS2_IFS, "OS/2 BM: hidden IFS" },
427 { MBR_PTYPE_AST_SWAP, "AST Windows swapfile" },
428 { MBR_PTYPE_WILLOWTECH, "Willowtech Photon coS" },
429 { MBR_PTYPE_HID_FAT32, "hidden Windows/95 FAT32" },
430 { MBR_PTYPE_HID_FAT32_LBA, "hidden Windows/95 FAT32 LBA" },
431 { MBR_PTYPE_HID_FAT16_LBA, "hidden Windows/95 FAT16 LBA" },
432 { MBR_PTYPE_WILLOWSOFT, "Willowsoft OFS1" },
433 { MBR_PTYPE_RESERVED_x21, "reserved" },
434 { MBR_PTYPE_RESERVED_x23, "reserved" },
435 { MBR_PTYPE_RESERVED_x24, "NEC DOS"},
436 { MBR_PTYPE_RESERVED_x26, "reserved" },
437 { MBR_PTYPE_RESERVED_x31, "reserved" },
438 { MBR_PTYPE_NOS, "Alien Internet Services NOS" },
439 { MBR_PTYPE_RESERVED_x33, "reserved" },
440 { MBR_PTYPE_RESERVED_x34, "reserved" },
441 { MBR_PTYPE_OS2_JFS, "JFS on OS2" },
442 { MBR_PTYPE_RESERVED_x36, "reserved" },
443 { MBR_PTYPE_THEOS, "Theos" },
444 { MBR_PTYPE_PLAN9, "Plan 9" },
445 { MBR_PTYPE_PLAN9, "Plan 9, or Theos spanned" },
446 { MBR_PTYPE_THEOS_4GB, "Theos ver 4 4gb partition" },
447 { MBR_PTYPE_THEOS_EXT, "Theos ve 4 extended partition" },
448 { MBR_PTYPE_PMRECOVERY, "PartitionMagic recovery" },
449 { MBR_PTYPE_HID_NETWARE, "Hidden Netware" },
450 { MBR_PTYPE_VENIX, "VENIX 286 or LynxOS" },
451 { MBR_PTYPE_PREP, "Linux/MINIX (sharing disk with DRDOS) "
452 "or Personal RISC boot" },
453 { MBR_PTYPE_DRDOS_LSWAP, "SFS or Linux swap "
454 "(sharing disk with DRDOS)" },
455 { MBR_PTYPE_DRDOS_LINUX, "Linux native (sharing disk with DRDOS)" },
456 { MBR_PTYPE_GOBACK, "GoBack change utility" },
457 { MBR_PTYPE_BOOT_US, "Boot US Boot manager" },
458 { MBR_PTYPE_EUMEL_x46, "EUMEL/Elan or Ergos 3" },
459 { MBR_PTYPE_EUMEL_x47, "EUMEL/Elan or Ergos 3" },
460 { MBR_PTYPE_EUMEL_x48, "EUMEL/Elan or Ergos 3" },
461 { MBR_PTYPE_ALFS_THIN, "ALFX/THIN filesystem for DOS" },
462 { MBR_PTYPE_OBERON, "Oberon partition" },
463 { MBR_PTYPE_QNX4X, "QNX4.x" },
464 { MBR_PTYPE_QNX4X_2, "QNX4.x 2nd part" },
465 { MBR_PTYPE_QNX4X_3, "QNX4.x 3rd part" },
466 { MBR_PTYPE_DM, "DM (disk manager)" },
467 { MBR_PTYPE_DM6_AUX1, "DM6 Aux1 (or Novell)" },
468 { MBR_PTYPE_CPM, "CP/M or Microport SysV/AT" },
469 { MBR_PTYPE_DM6_AUX3, "DM6 Aux3" },
470 { MBR_PTYPE_DM6_DDO, "DM6 DDO" },
471 { MBR_PTYPE_EZDRIVE, "EZ-Drive (disk manager)" },
472 { MBR_PTYPE_GOLDEN_BOW, "Golden Bow (disk manager)" },
473 { MBR_PTYPE_DRIVE_PRO, "Drive PRO" },
474 { MBR_PTYPE_PRIAM_EDISK, "Priam Edisk (disk manager)" },
475 { MBR_PTYPE_SPEEDSTOR, "SpeedStor" },
476 { MBR_PTYPE_HURD, "GNU HURD or Mach or Sys V/386 "
477 "(such as ISC UNIX) or MtXinu" },
478 { MBR_PTYPE_NOVELL_2XX, "Novell Netware 2.xx or Speedstore" },
479 { MBR_PTYPE_NOVELL_3XX, "Novell Netware 3.xx" },
480 { MBR_PTYPE_NOVELL_386, "Novell 386 Netware" },
481 { MBR_PTYPE_NOVELL_x67, "Novell" },
482 { MBR_PTYPE_NOVELL_x68, "Novell" },
483 { MBR_PTYPE_NOVELL_x69, "Novell" },
484 { MBR_PTYPE_DISKSECURE, "DiskSecure Multi-Boot" },
485 { MBR_PTYPE_RESERVED_x71, "reserved" },
486 { MBR_PTYPE_RESERVED_x73, "reserved" },
487 { MBR_PTYPE_RESERVED_x74, "reserved" },
488 { MBR_PTYPE_PCIX, "PC/IX" },
489 { MBR_PTYPE_RESERVED_x76, "reserved" },
490 { MBR_PTYPE_M2FS_M2CS, "M2FS/M2CS partition" },
491 { MBR_PTYPE_XOSL_FS, "XOSL boot loader filesystem" },
492 { MBR_PTYPE_MINIX_14A, "MINIX until 1.4a" },
493 { MBR_PTYPE_MINIX_14B, "MINIX since 1.4b, early Linux, Mitac dmgr" },
494 { MBR_PTYPE_LNXSWAP, "Linux swap or Prime or Solaris" },
495 { MBR_PTYPE_LNXEXT2, "Linux native" },
496 { MBR_PTYPE_OS2_C, "OS/2 hidden C: drive" },
497 { MBR_PTYPE_EXT_LNX, "Linux extended" },
498 { MBR_PTYPE_NTFATVOL, "NT FAT volume set" },
499 { MBR_PTYPE_NTFSVOL, "NTFS volume set or HPFS mirrored" },
500 { MBR_PTYPE_LNX_KERNEL, "Linux Kernel AiR-BOOT partition" },
501 { MBR_PTYPE_FT_FAT32, "Legacy Fault tolerant FAT32" },
502 { MBR_PTYPE_FT_FAT32_EXT, "Legacy Fault tolerant FAT32 ext" },
503 { MBR_PTYPE_HID_FR_FD_12, "Hidden free FDISK FAT12" },
504 { MBR_PTYPE_LNX_LVM, "Linux Logical Volume Manager" },
505 { MBR_PTYPE_HID_FR_FD_16, "Hidden free FDISK FAT16" },
506 { MBR_PTYPE_HID_FR_FD_EXT, "Hidden free FDISK DOS EXT" },
507 { MBR_PTYPE_HID_FR_FD_16L, "Hidden free FDISK FAT16 Large" },
508 { MBR_PTYPE_AMOEBA_FS, "Amoeba filesystem" },
509 { MBR_PTYPE_AMOEBA_BAD, "Amoeba bad block table" },
510 { MBR_PTYPE_MIT_EXOPC, "MIT EXOPC native partitions" },
511 { MBR_PTYPE_HID_FR_FD_32, "Hidden free FDISK FAT32" },
512 { MBR_PTYPE_DATALIGHT, "Datalight ROM-DOS Super-Boot" },
513 { MBR_PTYPE_MYLEX, "Mylex EISA SCSI" },
514 { MBR_PTYPE_HID_FR_FD_16L, "Hidden free FDISK FAT16 LBA" },
515 { MBR_PTYPE_HID_FR_FD_EXL, "Hidden free FDISK EXT LBA" },
516 { MBR_PTYPE_BSDI, "BSDI?" },
517 { MBR_PTYPE_IBM_HIB, "IBM Thinkpad hibernation" },
518 { MBR_PTYPE_HP_VOL_xA1, "HP Volume expansion (SpeedStor)" },
519 { MBR_PTYPE_HP_VOL_xA3, "HP Volume expansion (SpeedStor)" },
520 { MBR_PTYPE_HP_VOL_xA4, "HP Volume expansion (SpeedStor)" },
521 { MBR_PTYPE_386BSD, "FreeBSD or 386BSD or old NetBSD" },
522 { MBR_PTYPE_OPENBSD, "OpenBSD" },
523 { MBR_PTYPE_NEXTSTEP_486, "NeXTSTEP 486" },
524 { MBR_PTYPE_APPLE_UFS, "Apple UFS" },
525 { MBR_PTYPE_NETBSD, "NetBSD" },
526 { MBR_PTYPE_OLIVETTI, "Olivetty Fat12 1.44MB Service part" },
527 { MBR_PTYPE_SHAG_OS, "SHAG OS filesystem" },
528 { MBR_PTYPE_BOOTSTAR_DUM, "BootStar Dummy" },
529 { MBR_PTYPE_BOOT_WIZARD, "Boot Wizard Hidden" },
530 { MBR_PTYPE_APPLE_BOOT, "Apple Boot" },
531 { MBR_PTYPE_APPLE_HFS, "Apple HFS" },
532 { MBR_PTYPE_RESERVED_xB6, "reserved" },
533 { MBR_PTYPE_RESERVED_xB6, "reserved" },
534 { MBR_PTYPE_RESERVED_xB6, "reserved" },
535 { MBR_PTYPE_RESERVED_xB6, "reserved" },
536 { MBR_PTYPE_BSDI_386, "BSDI BSD/386 filesystem" },
537 { MBR_PTYPE_BSDI_SWAP, "BSDI BSD/386 swap" },
538 { MBR_PTYPE_SOLARIS_8, "Solaris 8 boot partition" },
539 { MBR_PTYPE_SOLARIS, "Solaris boot partition" },
540 { MBR_PTYPE_CTOS, "CTOS" },
541 { MBR_PTYPE_DRDOS_FAT12, "DRDOS/sec (FAT-12)" },
542 { MBR_PTYPE_HID_LNX, "Hidden Linux" },
543 { MBR_PTYPE_HID_LNX_SWAP, "Hidden Linux Swap" },
544 { MBR_PTYPE_DRDOS_FAT16S, "DRDOS/sec (FAT-16, < 32M)" },
545 { MBR_PTYPE_DRDOS_EXT, "DRDOS/sec (EXT)" },
546 { MBR_PTYPE_DRDOS_FAT16B, "DRDOS/sec (FAT-16, >= 32M)" },
547 { MBR_PTYPE_SYRINX, "Syrinx (Cyrnix?) or HPFS disabled" },
548 { MBR_PTYPE_DRDOS_8_xC8, "Reserved for DR-DOS 8.0+" },
549 { MBR_PTYPE_DRDOS_8_xC9, "Reserved for DR-DOS 8.0+" },
550 { MBR_PTYPE_DRDOS_8_xCA, "Reserved for DR-DOS 8.0+" },
551 { MBR_PTYPE_DRDOS_74_CHS, "DR-DOS 7.04+ Secured FAT32 CHS" },
552 { MBR_PTYPE_DRDOS_74_LBA, "DR-DOS 7.04+ Secured FAT32 LBA" },
553 { MBR_PTYPE_CTOS_MEMDUMP, "CTOS Memdump" },
554 { MBR_PTYPE_DRDOS_74_16X, "DR-DOS 7.04+ FAT16X LBA" },
555 { MBR_PTYPE_DRDOS_74_EXT, "DR-DOS 7.04+ EXT LBA" },
556 { MBR_PTYPE_REAL32, "REAL/32 secure big partition" },
557 { MBR_PTYPE_MDOS_FAT12, "Old Multiuser DOS FAT12" },
558 { MBR_PTYPE_MDOS_FAT16S, "Old Multiuser DOS FAT16 Small" },
559 { MBR_PTYPE_MDOS_EXT, "Old Multiuser DOS Extended" },
560 { MBR_PTYPE_MDOS_FAT16B, "Old Multiuser DOS FAT16 Big" },
561 { MBR_PTYPE_CPM_86, "CP/M 86" },
562 { MBR_PTYPE_CONCURRENT, "CP/M or Concurrent CP/M or Concurrent DOS "
563 "or CTOS" },
564 { MBR_PTYPE_HID_CTOS_MEM, "Hidden CTOS Memdump" },
565 { MBR_PTYPE_DELL_UTIL, "Dell PowerEdge Server utilities" },
566 { MBR_PTYPE_DGUX_VIRTUAL, "DG/UX virtual disk manager" },
567 { MBR_PTYPE_STMICROELEC, "STMicroelectronics ST AVFS" },
568 { MBR_PTYPE_DOS_ACCESS, "DOS access or SpeedStor 12-bit FAT "
569 "extended partition" },
570 { MBR_PTYPE_STORDIM, "DOS R/O or SpeedStor or Storage Dimensions" },
571 { MBR_PTYPE_SPEEDSTOR_16S, "SpeedStor 16-bit FAT extended partition "
572 "< 1024 cyl." },
573 { MBR_PTYPE_RESERVED_xE5, "reserved" },
574 { MBR_PTYPE_RESERVED_xE6, "reserved" },
575 { MBR_PTYPE_BEOS, "BeOS" },
576 { MBR_PTYPE_PMBR, "GPT Protective MBR" },
577 { MBR_PTYPE_EFI, "EFI system partition" },
578 { MBR_PTYPE_LNX_PA_RISC, "Linux PA-RISC boot loader" },
579 { MBR_PTYPE_SPEEDSTOR_X, "SpeedStor or Storage Dimensions" },
580 { MBR_PTYPE_DOS33_SEC, "DOS 3.3+ Secondary" },
581 { MBR_PTYPE_RESERVED_xF3, "reserved" },
582 { MBR_PTYPE_SPEEDSTOR_L, "SpeedStor large partition or "
583 "Storage Dimensions" },
584 { MBR_PTYPE_PROLOGUE, "Prologue multi-volumen partition" },
585 { MBR_PTYPE_RESERVED_xF6, "reserved" },
586 { MBR_PTYPE_PCACHE, "pCache: ext2/ext3 persistent cache" },
587 { MBR_PTYPE_BOCHS, "Bochs x86 emulator" },
588 { MBR_PTYPE_VMWARE, "VMware File System" },
589 { MBR_PTYPE_VMWARE_SWAP, "VMware Swap" },
590 { MBR_PTYPE_LNX_RAID, "Linux RAID partition persistent sb" },
591 { MBR_PTYPE_LANSTEP, "SpeedStor >1024 cyl. or LANstep "
592 "or IBM PS/2 IML" },
593 { MBR_PTYPE_XENIX_BAD, "Xenix Bad Block Table" },
594};
595#endif
596
597#define MBR_PSECT(s) ((s) & 0x3f)
598#define MBR_PCYL(c, s) ((c) + (((s) & 0xc0) << 2))
599
600#define MBR_IS_EXTENDED(x) ((x) == MBR_PTYPE_EXT || \
601 (x) == MBR_PTYPE_EXT_LBA || \
602 (x) == MBR_PTYPE_EXT_LNX)
603
604 /* values for mbr_bootsel.mbrbs_flags */
605#define MBR_BS_ACTIVE 0x01 /* Bootselector active (or code present) */
606#define MBR_BS_EXTINT13 0x02 /* Set by fdisk if LBA needed (deprecated) */
607#define MBR_BS_READ_LBA 0x04 /* Force LBA reads (deprecated) */
608#define MBR_BS_EXTLBA 0x08 /* Extended ptn capable (LBA reads) */
609#define MBR_BS_ASCII 0x10 /* Bootselect code needs ascii key code */
610/* This is always set, the bootsel is located using the magic number... */
611#define MBR_BS_NEWMBR 0x80 /* New bootsel at offset 440 */
612
613#if !defined(__ASSEMBLER__) /* { */
614
615/*
616 * (x86) BIOS Parameter Block for FAT12
617 */
618struct mbr_bpbFAT12 {
619 uint16_t bpbBytesPerSec; /* bytes per sector */
620 uint8_t bpbSecPerClust; /* sectors per cluster */
621 uint16_t bpbResSectors; /* number of reserved sectors */
622 uint8_t bpbFATs; /* number of FATs */
623 uint16_t bpbRootDirEnts; /* number of root directory entries */
624 uint16_t bpbSectors; /* total number of sectors */
625 uint8_t bpbMedia; /* media descriptor */
626 uint16_t bpbFATsecs; /* number of sectors per FAT */
627 uint16_t bpbSecPerTrack; /* sectors per track */
628 uint16_t bpbHeads; /* number of heads */
629 uint16_t bpbHiddenSecs; /* # of hidden sectors */
630} __packed;
631
632/*
633 * (x86) BIOS Parameter Block for FAT16
634 */
635struct mbr_bpbFAT16 {
636 uint16_t bpbBytesPerSec; /* bytes per sector */
637 uint8_t bpbSecPerClust; /* sectors per cluster */
638 uint16_t bpbResSectors; /* number of reserved sectors */
639 uint8_t bpbFATs; /* number of FATs */
640 uint16_t bpbRootDirEnts; /* number of root directory entries */
641 uint16_t bpbSectors; /* total number of sectors */
642 uint8_t bpbMedia; /* media descriptor */
643 uint16_t bpbFATsecs; /* number of sectors per FAT */
644 uint16_t bpbSecPerTrack; /* sectors per track */
645 uint16_t bpbHeads; /* number of heads */
646 uint32_t bpbHiddenSecs; /* # of hidden sectors */
647 uint32_t bpbHugeSectors; /* # of sectors if bpbSectors == 0 */
648 uint8_t bsDrvNum; /* Int 0x13 drive number (e.g. 0x80) */
649 uint8_t bsReserved1; /* Reserved; set to 0 */
650 uint8_t bsBootSig; /* 0x29 if next 3 fields are present */
651 uint8_t bsVolID[4]; /* Volume serial number */
652 uint8_t bsVolLab[11]; /* Volume label */
653 uint8_t bsFileSysType[8];
654 /* "FAT12 ", "FAT16 ", "FAT " */
655} __packed;
656
657/*
658 * (x86) BIOS Parameter Block for FAT32
659 */
660struct mbr_bpbFAT32 {
661 uint16_t bpbBytesPerSec; /* bytes per sector */
662 uint8_t bpbSecPerClust; /* sectors per cluster */
663 uint16_t bpbResSectors; /* number of reserved sectors */
664 uint8_t bpbFATs; /* number of FATs */
665 uint16_t bpbRootDirEnts; /* number of root directory entries */
666 uint16_t bpbSectors; /* total number of sectors */
667 uint8_t bpbMedia; /* media descriptor */
668 uint16_t bpbFATsecs; /* number of sectors per FAT */
669 uint16_t bpbSecPerTrack; /* sectors per track */
670 uint16_t bpbHeads; /* number of heads */
671 uint32_t bpbHiddenSecs; /* # of hidden sectors */
672 uint32_t bpbHugeSectors; /* # of sectors if bpbSectors == 0 */
673 uint32_t bpbBigFATsecs; /* like bpbFATsecs for FAT32 */
674 uint16_t bpbExtFlags; /* extended flags: */
675#define MBR_FAT32_FATNUM 0x0F /* mask for numbering active FAT */
676#define MBR_FAT32_FATMIRROR 0x80 /* FAT is mirrored (as previously) */
677 uint16_t bpbFSVers; /* filesystem version */
678#define MBR_FAT32_FSVERS 0 /* currently only 0 is understood */
679 uint32_t bpbRootClust; /* start cluster for root directory */
680 uint16_t bpbFSInfo; /* filesystem info structure sector */
681 uint16_t bpbBackup; /* backup boot sector */
682 uint8_t bsReserved[12]; /* Reserved for future expansion */
683 uint8_t bsDrvNum; /* Int 0x13 drive number (e.g. 0x80) */
684 uint8_t bsReserved1; /* Reserved; set to 0 */
685 uint8_t bsBootSig; /* 0x29 if next 3 fields are present */
686 uint8_t bsVolID[4]; /* Volume serial number */
687 uint8_t bsVolLab[11]; /* Volume label */
688 uint8_t bsFileSysType[8]; /* "FAT32 " */
689} __packed;
690
691/*
692 * (x86) MBR boot selector
693 */
694struct mbr_bootsel {
695 uint8_t mbrbs_defkey;
696 uint8_t mbrbs_flags;
697 uint16_t mbrbs_timeo;
698 char mbrbs_nametab[MBR_PART_COUNT][MBR_BS_PARTNAMESIZE + 1];
699} __packed;
700
701/*
702 * MBR partition
703 */
704struct mbr_partition {
705 uint8_t mbrp_flag; /* MBR partition flags */
706 uint8_t mbrp_shd; /* Starting head */
707 uint8_t mbrp_ssect; /* Starting sector */
708 uint8_t mbrp_scyl; /* Starting cylinder */
709 uint8_t mbrp_type; /* Partition type (see below) */
710 uint8_t mbrp_ehd; /* End head */
711 uint8_t mbrp_esect; /* End sector */
712 uint8_t mbrp_ecyl; /* End cylinder */
713 uint32_t mbrp_start; /* Absolute starting sector number */
714 uint32_t mbrp_size; /* Partition size in sectors */
715} __packed;
716
717int xlat_mbr_fstype(int); /* in sys/lib/libkern/xlat_mbr_fstype.c */
718
719/*
720 * MBR boot sector.
721 * This is used by both the MBR (Master Boot Record) in sector 0 of the disk
722 * and the PBR (Partition Boot Record) in sector 0 of an MBR partition.
723 */
724struct mbr_sector {
725 /* Jump instruction to boot code. */
726 /* Usually 0xE9nnnn or 0xEBnn90 */
727 uint8_t mbr_jmpboot[3];
728 /* OEM name and version */
729 uint8_t mbr_oemname[8];
730 union { /* BIOS Parameter Block */
731 struct mbr_bpbFAT12 bpb12;
732 struct mbr_bpbFAT16 bpb16;
733 struct mbr_bpbFAT32 bpb32;
734 } mbr_bpb;
735 /* Boot code */
736 uint8_t mbr_bootcode[310];
737 /* Config for /usr/mdec/mbr_bootsel */
738 struct mbr_bootsel mbr_bootsel;
739 /* NT Drive Serial Number */
740 uint32_t mbr_dsn;
741 /* mbr_bootsel magic */
742 uint16_t mbr_bootsel_magic;
743 /* MBR partition table */
744 struct mbr_partition mbr_parts[MBR_PART_COUNT];
745 /* MBR magic (0xaa55) */
746 uint16_t mbr_magic;
747} __packed;
748
749#endif /* !defined(__ASSEMBLER__) */ /* } */
750
751
752/* ------------------------------------------
753 * shared --
754 * definitions shared by many platforms
755 */
756
757#if !defined(__ASSEMBLER__) /* { */
758
759 /* Maximum # of blocks in bbi_block_table, each bbi_block_size long */
760#define SHARED_BBINFO_MAXBLOCKS 118 /* so sizeof(shared_bbinfo) == 512 */
761
762struct shared_bbinfo {
763 uint8_t bbi_magic[32];
764 int32_t bbi_block_size;
765 int32_t bbi_block_count;
766 int32_t bbi_block_table[SHARED_BBINFO_MAXBLOCKS];
767};
768
769/* ------------------------------------------
770 * alpha --
771 * Alpha (disk, but also tape) Boot Block.
772 *
773 * See Section (III) 3.6.1 of the Alpha Architecture Reference Manual.
774 */
775
776struct alpha_boot_block {
777 uint64_t bb_data[63]; /* data (disklabel, also as below) */
778 uint64_t bb_cksum; /* checksum of the boot block,
779 * taken as uint64_t's
780 */
781};
782#define bb_secsize bb_data[60] /* secondary size (blocks) */
783#define bb_secstart bb_data[61] /* secondary start (blocks) */
784#define bb_flags bb_data[62] /* unknown flags (set to zero) */
785
786#define ALPHA_BOOT_BLOCK_OFFSET 0 /* offset of boot block. */
787#define ALPHA_BOOT_BLOCK_BLOCKSIZE 512 /* block size for sector
788 * size/start, and for boot
789 * block itself.
790 */
791
792#define ALPHA_BOOT_BLOCK_CKSUM(bb,cksum) \
793 do { \
794 const struct alpha_boot_block *_bb = (bb); \
795 uint64_t _cksum; \
796 size_t _i; \
797 \
798 _cksum = 0; \
799 for (_i = 0; \
800 _i < (sizeof _bb->bb_data / sizeof _bb->bb_data[0]); \
801 _i++) \
802 _cksum += le64toh(_bb->bb_data[_i]); \
803 *(cksum) = htole64(_cksum); \
804 } while (0)
805
806/* ------------------------------------------
807 * apple --
808 * Apple computers boot block related information
809 */
810
811/*
812 * Driver Descriptor Map, from Inside Macintosh: Devices, SCSI Manager
813 * pp 12-13. The driver descriptor map always resides on physical block 0.
814 */
815struct apple_drvr_descriptor {
816 uint32_t descBlock; /* first block of driver */
817 uint16_t descSize; /* driver size in blocks */
818 uint16_t descType; /* system type */
819} __packed;
820
821/*
822 * system types; Apple reserves 0-15
823 */
824#define APPLE_DRVR_TYPE_MACINTOSH 1
825
826#define APPLE_DRVR_MAP_MAGIC 0x4552
827#define APPLE_DRVR_MAP_MAX_DESCRIPTORS 61
828
829struct apple_drvr_map {
830 uint16_t sbSig; /* map signature */
831 uint16_t sbBlockSize; /* block size of device */
832 uint32_t sbBlkCount; /* number of blocks on device */
833 uint16_t sbDevType; /* (used internally by ROM) */
834 uint16_t sbDevID; /* (used internally by ROM) */
835 uint32_t sbData; /* (used internally by ROM) */
836 uint16_t sbDrvrCount; /* number of driver descriptors */
837 struct apple_drvr_descriptor sb_dd[APPLE_DRVR_MAP_MAX_DESCRIPTORS];
838 uint16_t pad[3];
839} __packed;
840
841/*
842 * Partition map structure from Inside Macintosh: Devices, SCSI Manager
843 * pp. 13-14. The partition map always begins on physical block 1.
844 *
845 * With the exception of block 0, all blocks on the disk must belong to
846 * exactly one partition. The partition map itself belongs to a partition
847 * of type `APPLE_PARTITION_MAP', and is not limited in size by anything
848 * other than available disk space. The partition map is not necessarily
849 * the first partition listed.
850 */
851#define APPLE_PART_MAP_ENTRY_MAGIC 0x504d
852
853struct apple_part_map_entry {
854 uint16_t pmSig; /* partition signature */
855 uint16_t pmSigPad; /* (reserved) */
856 uint32_t pmMapBlkCnt; /* number of blocks in partition map */
857 uint32_t pmPyPartStart; /* first physical block of partition */
858 uint32_t pmPartBlkCnt; /* number of blocks in partition */
859 uint8_t pmPartName[32]; /* partition name */
860 uint8_t pmPartType[32]; /* partition type */
861 uint32_t pmLgDataStart; /* first logical block of data area */
862 uint32_t pmDataCnt; /* number of blocks in data area */
863 uint32_t pmPartStatus; /* partition status information */
864/*
865 * Partition Status Information from Apple Tech Note 1189
866 */
867#define APPLE_PS_VALID 0x00000001 /* Entry is valid */
868#define APPLE_PS_ALLOCATED 0x00000002 /* Entry is allocated */
869#define APPLE_PS_IN_USE 0x00000004 /* Entry in use */
870#define APPLE_PS_BOOT_INFO 0x00000008 /* Entry contains boot info */
871#define APPLE_PS_READABLE 0x00000010 /* Entry is readable */
872#define APPLE_PS_WRITABLE 0x00000020 /* Entry is writable */
873#define APPLE_PS_BOOT_CODE_PIC 0x00000040 /* Boot code has position
874 * independent code */
875#define APPLE_PS_CC_DRVR 0x00000100 /* Partition contains chain-
876 * compatible driver */
877#define APPLE_PS_RL_DRVR 0x00000200 /* Partition contains real
878 * driver */
879#define APPLE_PS_CH_DRVR 0x00000400 /* Partition contains chain
880 * driver */
881#define APPLE_PS_AUTO_MOUNT 0x40000000 /* Mount automatically at
882 * startup */
883#define APPLE_PS_STARTUP 0x80000000 /* Is the startup partition */
884 uint32_t pmLgBootStart; /* first logical block of boot code */
885 uint32_t pmBootSize; /* size of boot code, in bytes */
886 uint32_t pmBootLoad; /* boot code load address */
887 uint32_t pmBootLoad2; /* (reserved) */
888 uint32_t pmBootEntry; /* boot code entry point */
889 uint32_t pmBootEntry2; /* (reserved) */
890 uint32_t pmBootCksum; /* boot code checksum */
891 int8_t pmProcessor[16]; /* processor type (e.g. "68020") */
892 uint8_t pmBootArgs[128]; /* A/UX boot arguments */
893 uint8_t pad[248]; /* pad to end of block */
894};
895
896#define APPLE_PART_TYPE_DRIVER "APPLE_DRIVER"
897#define APPLE_PART_TYPE_DRIVER43 "APPLE_DRIVER43"
898#define APPLE_PART_TYPE_DRIVERATA "APPLE_DRIVER_ATA"
899#define APPLE_PART_TYPE_DRIVERIOKIT "APPLE_DRIVER_IOKIT"
900#define APPLE_PART_TYPE_FWDRIVER "APPLE_FWDRIVER"
901#define APPLE_PART_TYPE_FWB_COMPONENT "FWB DRIVER COMPONENTS"
902#define APPLE_PART_TYPE_FREE "APPLE_FREE"
903#define APPLE_PART_TYPE_MAC "APPLE_HFS"
904#define APPLE_PART_TYPE_NETBSD "NETBSD"
905#define APPLE_PART_TYPE_NBSD_PPCBOOT "NETBSD/MACPPC"
906#define APPLE_PART_TYPE_NBSD_68KBOOT "NETBSD/MAC68K"
907#define APPLE_PART_TYPE_PATCHES "APPLE_PATCHES"
908#define APPLE_PART_TYPE_PARTMAP "APPLE_PARTITION_MAP"
909#define APPLE_PART_TYPE_PATCHES "APPLE_PATCHES"
910#define APPLE_PART_TYPE_SCRATCH "APPLE_SCRATCH"
911#define APPLE_PART_TYPE_UNIX "APPLE_UNIX_SVR2"
912
913/*
914 * "pmBootArgs" for APPLE_UNIX_SVR2 partition.
915 * NetBSD/mac68k only uses Magic, Cluster, Type, and Flags.
916 */
917struct apple_blockzeroblock {
918 uint32_t bzbMagic;
919 uint8_t bzbCluster;
920 uint8_t bzbType;
921 uint16_t bzbBadBlockInode;
922 uint16_t bzbFlags;
923 uint16_t bzbReserved;
924 uint32_t bzbCreationTime;
925 uint32_t bzbMountTime;
926 uint32_t bzbUMountTime;
927};
928
929#define APPLE_BZB_MAGIC 0xABADBABE
930#define APPLE_BZB_TYPEFS 1
931#define APPLE_BZB_TYPESWAP 3
932#define APPLE_BZB_ROOTFS 0x8000
933#define APPLE_BZB_USRFS 0x4000
934
935/* ------------------------------------------
936 * ews4800mips
937 *
938 */
939
940#define EWS4800MIPS_BBINFO_MAGIC "NetBSD/ews4800mips 20040611"
941#define EWS4800MIPS_BOOT_BLOCK_OFFSET 0
942#define EWS4800MIPS_BOOT_BLOCK_BLOCKSIZE 512
943#define EWS4800MIPS_BOOT_BLOCK_MAX_SIZE (512 * 8)
944
945/* ------------------------------------------
946 * hp300
947 *
948 */
949
950/* volume header for "LIF" format volumes */
951
952struct hp300_lifvol {
953 uint16_t vol_id;
954 char vol_label[6];
955 uint32_t vol_addr;
956 uint16_t vol_oct;
957 uint16_t vol_dummy;
958 uint32_t vol_dirsize;
959 uint16_t vol_version;
960 uint16_t vol_zero;
961 uint32_t vol_huh1;
962 uint32_t vol_huh2;
963 uint32_t vol_length;
964};
965
966/* LIF directory entry format */
967
968struct hp300_lifdir {
969 char dir_name[10];
970 uint16_t dir_type;
971 uint32_t dir_addr;
972 uint32_t dir_length;
973 char dir_toc[6];
974 uint16_t dir_flag;
975 uint32_t dir_exec;
976};
977
978/* load header for boot rom */
979struct hp300_load {
980 uint32_t address;
981 uint32_t count;
982};
983
984#define HP300_VOL_ID 0x8000 /* always $8000 */
985#define HP300_VOL_OCT 4096
986#define HP300_DIR_TYPE 0xe942 /* "SYS9k Series 9000" */
987#define HP300_DIR_FLAG 0x8001 /* don't ask me! */
988#define HP300_SECTSIZE 256
989
990#define HP300_LIF_NUMDIR 8
991
992#define HP300_LIF_VOLSTART 0
993#define HP300_LIF_VOLSIZE sizeof(struct hp300_lifvol)
994#define HP300_LIF_DIRSTART 512
995#define HP300_LIF_DIRSIZE (HP300_LIF_NUMDIR * sizeof(struct hp300_lifdir))
996#define HP300_LIF_FILESTART 8192
997
998#define hp300_btolifs(b) (((b) + (HP300_SECTSIZE - 1)) / HP300_SECTSIZE)
999#define hp300_lifstob(s) ((s) * HP300_SECTSIZE)
1000
1001
1002/* ------------------------------------------
1003 * hppa
1004 *
1005 */
1006
1007/*
1008 * volume header for "LIF" format volumes
1009 */
1010struct hppa_lifvol {
1011 uint16_t vol_id;
1012 uint8_t vol_label[6];
1013 uint32_t vol_addr;
1014 uint16_t vol_oct;
1015 uint16_t vol_dummy;
1016
1017 uint32_t vol_dirsize;
1018 uint16_t vol_version;
1019 uint16_t vol_zero;
1020 uint32_t vol_number;
1021 uint32_t vol_lastvol;
1022
1023 uint32_t vol_length;
1024 uint8_t vol_toc[6];
1025 uint8_t vol_dummy1[198];
1026
1027 uint32_t ipl_addr;
1028 uint32_t ipl_size;
1029 uint32_t ipl_entry;
1030
1031 uint32_t vol_dummy2;
1032};
1033
1034struct hppa_lifdir {
1035 uint8_t dir_name[10];
1036 uint16_t dir_type;
1037 uint32_t dir_addr;
1038 uint32_t dir_length;
1039 uint8_t dir_toc[6];
1040 uint16_t dir_flag;
1041 uint32_t dir_implement;
1042};
1043
1044struct hppa_lifload {
1045 int address;
1046 int count;
1047};
1048
1049#define HPPA_LIF_VOL_ID 0x8000
1050#define HPPA_LIF_VOL_OCT 0x1000
1051#define HPPA_LIF_DIR_SWAP 0x5243
1052#define HPPA_LIF_DIR_FS 0xcd38
1053#define HPPA_LIF_DIR_IOMAP 0xcd60
1054#define HPPA_LIF_DIR_HPUX 0xcd80
1055#define HPPA_LIF_DIR_ISL 0xce00
1056#define HPPA_LIF_DIR_PAD 0xcffe
1057#define HPPA_LIF_DIR_AUTO 0xcfff
1058#define HPPA_LIF_DIR_EST 0xd001
1059#define HPPA_LIF_DIR_TYPE 0xe942
1060
1061#define HPPA_LIF_DIR_FLAG 0x8001 /* dont ask me! */
1062#define HPPA_LIF_SECTSIZE 256
1063
1064#define HPPA_LIF_NUMDIR 8
1065
1066#define HPPA_LIF_VOLSTART 0
1067#define HPPA_LIF_VOLSIZE sizeof(struct hppa_lifvol)
1068#define HPPA_LIF_DIRSTART 2048
1069#define HPPA_LIF_DIRSIZE (HPPA_LIF_NUMDIR * sizeof(struct hppa_lifdir))
1070#define HPPA_LIF_FILESTART 4096
1071
1072#define hppa_btolifs(b) (((b) + (HPPA_LIF_SECTSIZE - 1)) / HPPA_LIF_SECTSIZE)
1073#define hppa_lifstob(s) ((s) * HPPA_LIF_SECTSIZE)
1074#define hppa_lifstodb(s) ((s) * HPPA_LIF_SECTSIZE / DEV_BSIZE)
1075
1076
1077/* ------------------------------------------
1078 * x86
1079 *
1080 */
1081
1082/*
1083 * Parameters for NetBSD /boot written to start of pbr code by installboot
1084 */
1085
1086struct x86_boot_params {
1087 uint32_t bp_length; /* length of patchable data */
1088 uint32_t bp_flags;
1089 uint32_t bp_timeout; /* boot timeout in seconds */
1090 uint32_t bp_consdev;
1091 uint32_t bp_conspeed;
1092 uint8_t bp_password[16]; /* md5 hash of password */
1093 char bp_keymap[64]; /* keyboard translation map */
1094 uint32_t bp_consaddr; /* ioaddr for console */
1095};
1096
1097#endif /* !defined(__ASSEMBLER__) */ /* } */
1098
1099#define X86_BOOT_MAGIC(n) ('x' << 24 | 0x86b << 12 | 'm' << 4 | (n))
1100#define X86_BOOT_MAGIC_1 X86_BOOT_MAGIC(1) /* pbr.S */
1101#define X86_BOOT_MAGIC_2 X86_BOOT_MAGIC(2) /* bootxx.S */
1102#define X86_BOOT_MAGIC_PXE X86_BOOT_MAGIC(3) /* start_pxe.S */
1103#define X86_BOOT_MAGIC_FAT X86_BOOT_MAGIC(4) /* fatboot.S */
1104#define X86_BOOT_MAGIC_EFI X86_BOOT_MAGIC(5) /* efiboot/start.S */
1105#define X86_MBR_GPT_MAGIC 0xedb88320 /* gpt.S */
1106
1107 /* values for bp_flags */
1108#define X86_BP_FLAGS_RESET_VIDEO 1
1109#define X86_BP_FLAGS_PASSWORD 2
1110#define X86_BP_FLAGS_NOMODULES 4
1111#define X86_BP_FLAGS_NOBOOTCONF 8
1112#define X86_BP_FLAGS_LBA64VALID 0x10
1113
1114 /* values for bp_consdev */
1115#define X86_BP_CONSDEV_PC 0
1116#define X86_BP_CONSDEV_COM0 1
1117#define X86_BP_CONSDEV_COM1 2
1118#define X86_BP_CONSDEV_COM2 3
1119#define X86_BP_CONSDEV_COM3 4
1120#define X86_BP_CONSDEV_COM0KBD 5
1121#define X86_BP_CONSDEV_COM1KBD 6
1122#define X86_BP_CONSDEV_COM2KBD 7
1123#define X86_BP_CONSDEV_COM3KBD 8
1124
1125/* ------------------------------------------
1126 * landisk
1127 */
1128
1129#if !defined(__ASSEMBLER__) /* { */
1130
1131/*
1132 * Parameters for NetBSD /boot written to start of pbr code by installboot
1133 */
1134struct landisk_boot_params {
1135 uint32_t bp_length; /* length of patchable data */
1136 uint32_t bp_flags;
1137 uint32_t bp_timeout; /* boot timeout in seconds */
1138 uint32_t bp_consdev;
1139 uint32_t bp_conspeed;
1140};
1141
1142#endif /* !defined(__ASSEMBLER__) */ /* } */
1143
1144#define LANDISK_BOOT_MAGIC_1 0x20031125
1145#define LANDISK_BOOT_MAGIC_2 0x20041110
1146
1147#if !defined(__ASSEMBLER__) /* { */
1148
1149/* ------------------------------------------
1150 * macppc
1151 */
1152
1153#define MACPPC_BOOT_BLOCK_OFFSET 2048
1154#define MACPPC_BOOT_BLOCK_BLOCKSIZE 512
1155#define MACPPC_BOOT_BLOCK_MAX_SIZE 2048 /* XXX: could be up to 6144 */
1156 /* Magic string -- 32 bytes long (including the NUL) */
1157#define MACPPC_BBINFO_MAGIC "NetBSD/macppc bootxx 20020515"
1158
1159/* ------------------------------------------
1160 * news68k, newsmips
1161 */
1162
1163#define NEWS_BOOT_BLOCK_LABELOFFSET 64 /* XXX from <machine/disklabel.h> */
1164#define NEWS_BOOT_BLOCK_OFFSET 0
1165#define NEWS_BOOT_BLOCK_BLOCKSIZE 512
1166#define NEWS_BOOT_BLOCK_MAX_SIZE (512 * 16)
1167
1168 /* Magic string -- 32 bytes long (including the NUL) */
1169#define NEWS68K_BBINFO_MAGIC "NetBSD/news68k bootxx 20020518"
1170#define NEWSMIPS_BBINFO_MAGIC "NetBSD/newsmips bootxx 20020518"
1171
1172/* ------------------------------------------
1173 * next68k
1174 */
1175
1176#define NEXT68K_LABEL_MAXPARTITIONS 8 /* number of partitions in next68k_disklabel */
1177#define NEXT68K_LABEL_CPULBLLEN 24
1178#define NEXT68K_LABEL_MAXDNMLEN 24
1179#define NEXT68K_LABEL_MAXTYPLEN 24
1180#define NEXT68K_LABEL_MAXBFLEN 24
1181#define NEXT68K_LABEL_MAXHNLEN 32
1182#define NEXT68K_LABEL_MAXMPTLEN 16
1183#define NEXT68K_LABEL_MAXFSTLEN 8
1184#define NEXT68K_LABEL_NBAD 1670 /* sized to make label ~= 8KB */
1185
1186struct next68k_partition {
1187 int32_t cp_offset; /* starting sector */
1188 int32_t cp_size; /* number of sectors in partition */
1189 int16_t cp_bsize; /* block size in bytes */
1190 int16_t cp_fsize; /* filesystem basic fragment size */
1191 char cp_opt; /* optimization type: 's'pace/'t'ime */
1192 char cp_pad1;
1193 int16_t cp_cpg; /* filesystem cylinders per group */
1194 int16_t cp_density; /* bytes per inode density */
1195 int8_t cp_minfree; /* minfree (%) */
1196 int8_t cp_newfs; /* run newfs during init */
1197 char cp_mountpt[NEXT68K_LABEL_MAXMPTLEN];
1198 /* default/standard mount point */
1199 int8_t cp_automnt; /* auto-mount when inserted */
1200 char cp_type[NEXT68K_LABEL_MAXFSTLEN]; /* file system type name */
1201 char cp_pad2;
1202} __packed;
1203
1204/* The disklabel the way it is on the disk */
1205struct next68k_disklabel {
1206 int32_t cd_version; /* label version */
1207 int32_t cd_label_blkno; /* block # of this label */
1208 int32_t cd_size; /* size of media area (sectors) */
1209 char cd_label[NEXT68K_LABEL_CPULBLLEN]; /* disk name (label) */
1210 uint32_t cd_flags; /* flags */
1211 uint32_t cd_tag; /* volume tag */
1212 char cd_name[NEXT68K_LABEL_MAXDNMLEN]; /* drive (hardware) name */
1213 char cd_type[NEXT68K_LABEL_MAXTYPLEN]; /* drive type */
1214 int32_t cd_secsize; /* # of bytes per sector */
1215 int32_t cd_ntracks; /* # of tracks per cylinder */
1216 int32_t cd_nsectors; /* # of data sectors per track */
1217 int32_t cd_ncylinders; /* # of data cylinders per unit */
1218 int32_t cd_rpm; /* rotational speed */
1219 int16_t cd_front; /* # of sectors in "front porch" */
1220 int16_t cd_back; /* # of sectors in "back porch" */
1221 int16_t cd_ngroups; /* # of alt groups */
1222 int16_t cd_ag_size; /* alt group size (sectors) */
1223 int16_t cd_ag_alts; /* alternate sectors / alt group */
1224 int16_t cd_ag_off; /* sector offset to first alternate */
1225 int32_t cd_boot_blkno[2]; /* boot program locations */
1226 char cd_kernel[NEXT68K_LABEL_MAXBFLEN]; /* default kernel name */
1227 char cd_hostname[NEXT68K_LABEL_MAXHNLEN];
1228 /* host name (usu. where disk was labeled) */
1229 char cd_rootpartition; /* root partition letter e.g. 'a' */
1230 char cd_rwpartition; /* r/w partition letter e.g. 'b' */
1231 struct next68k_partition cd_partitions[NEXT68K_LABEL_MAXPARTITIONS];
1232
1233 union {
1234 uint16_t CD_v3_checksum; /* label version 3 checksum */
1235 int32_t CD_bad[NEXT68K_LABEL_NBAD];
1236 /* block number that is bad */
1237 } cd_un;
1238 uint16_t cd_checksum; /* label version 1 or 2 checksum */
1239} __packed;
1240
1241#define NEXT68K_LABEL_cd_checksum cd_checksum
1242#define NEXT68K_LABEL_cd_v3_checksum cd_un.CD_v3_checksum
1243#define NEXT68K_LABEL_cd_bad cd_un.CD_bad
1244
1245#define NEXT68K_LABEL_SECTOR 0 /* sector containing label */
1246#define NEXT68K_LABEL_OFFSET 0 /* offset of label in sector */
1247#define NEXT68K_LABEL_SIZE 8192 /* size of label */
1248#define NEXT68K_LABEL_CD_V1 0x4e655854 /* version #1: "NeXT" */
1249#define NEXT68K_LABEL_CD_V2 0x646c5632 /* version #2: "dlV2" */
1250#define NEXT68K_LABEL_CD_V3 0x646c5633 /* version #3: "dlV3" */
1251#define NEXT68K_LABEL_DEFAULTFRONTPORCH (160 * 2)
1252#define NEXT68K_LABEL_DEFAULTBOOT0_1 (32 * 2)
1253#define NEXT68K_LABEL_DEFAULTBOOT0_2 (96 * 2)
1254
1255/* ------------------------------------------
1256 * pmax --
1257 * PMAX (DECstation / MIPS) boot block information
1258 */
1259
1260/*
1261 * If mode is 0, there is just one sequence of blocks and one Dec_BootMap
1262 * is used. If mode is 1, there are multiple sequences of blocks
1263 * and multiple Dec_BootMaps are used, the last with numBlocks = 0.
1264 */
1265struct pmax_boot_map {
1266 int32_t num_blocks; /* Number of blocks to read. */
1267 int32_t start_block; /* Starting block on disk. */
1268};
1269
1270/*
1271 * This is the structure of a disk or tape boot block. The boot_map
1272 * can either be a single boot count and start block (contiguous mode)
1273 * or a list of up to 61 (to fill a 512 byte sector) block count and
1274 * start block pairs. Under NetBSD, contiguous mode is always used.
1275 */
1276struct pmax_boot_block {
1277 uint8_t pad[8];
1278 int32_t magic; /* PMAX_BOOT_MAGIC */
1279 int32_t mode; /* Mode for boot info. */
1280 uint32_t load_addr; /* Address to start loading. */
1281 uint32_t exec_addr; /* Address to start execing. */
1282 struct pmax_boot_map map[61]; /* boot program section(s). */
1283} __packed;
1284
1285#define PMAX_BOOT_MAGIC 0x0002757a
1286#define PMAX_BOOTMODE_CONTIGUOUS 0
1287#define PMAX_BOOTMODE_SCATTERED 1
1288
1289#define PMAX_BOOT_BLOCK_OFFSET 0
1290#define PMAX_BOOT_BLOCK_BLOCKSIZE 512
1291
1292
1293/* ------------------------------------------
1294 * sgimips
1295 */
1296
1297/*
1298 * Some IRIX man pages refer to the size being a multiple of whole cylinders.
1299 * Later ones only refer to the size being "typically" 2MB. IRIX fx(1)
1300 * uses a default drive geometry if one can't be determined, suggesting
1301 * that "whole cylinder" multiples are not required.
1302 */
1303
1304#define SGI_BOOT_BLOCK_SIZE_VOLHDR 3135
1305#define SGI_BOOT_BLOCK_MAGIC 0xbe5a941
1306#define SGI_BOOT_BLOCK_MAXPARTITIONS 16
1307#define SGI_BOOT_BLOCK_MAXVOLDIRS 15
1308#define SGI_BOOT_BLOCK_BLOCKSIZE 512
1309
1310/*
1311 * SGI partition conventions:
1312 *
1313 * Partition 0 - root
1314 * Partition 1 - swap
1315 * Partition 6 - usr
1316 * Partition 7 - volume body
1317 * Partition 8 - volume header
1318 * Partition 10 - whole disk
1319 */
1320
1321struct sgi_boot_devparms {
1322 uint8_t dp_skew;
1323 uint8_t dp_gap1;
1324 uint8_t dp_gap2;
1325 uint8_t dp_spares_cyl;
1326 uint16_t dp_cyls;
1327 uint16_t dp_shd0;
1328 uint16_t dp_trks0;
1329 uint8_t dp_ctq_depth;
1330 uint8_t dp_cylshi;
1331 uint16_t dp_unused;
1332 uint16_t dp_secs;
1333 uint16_t dp_secbytes;
1334 uint16_t dp_interleave;
1335 uint32_t dp_flags;
1336 uint32_t dp_datarate;
1337 uint32_t dp_nretries;
1338 uint32_t dp_mspw;
1339 uint16_t dp_xgap1;
1340 uint16_t dp_xsync;
1341 uint16_t dp_xrdly;
1342 uint16_t dp_xgap2;
1343 uint16_t dp_xrgate;
1344 uint16_t dp_xwcont;
1345} __packed;
1346
1347struct sgi_boot_block {
1348 uint32_t magic;
1349 int16_t root;
1350 int16_t swap;
1351 char bootfile[16];
1352 struct sgi_boot_devparms dp;
1353 struct {
1354 char name[8];
1355 int32_t block;
1356 int32_t bytes;
1357 } voldir[SGI_BOOT_BLOCK_MAXVOLDIRS];
1358 struct {
1359 int32_t blocks;
1360 int32_t first;
1361 int32_t type;
1362 } partitions[SGI_BOOT_BLOCK_MAXPARTITIONS];
1363 int32_t checksum;
1364 int32_t _pad;
1365} __packed;
1366
1367#define SGI_PTYPE_VOLHDR 0
1368#define SGI_PTYPE_TRKREPL 1
1369#define SGI_PTYPE_SECREPL 2
1370#define SGI_PTYPE_RAW 3
1371#define SGI_PTYPE_BSD 4
1372#define SGI_PTYPE_SYSV 5
1373#define SGI_PTYPE_VOLUME 6
1374#define SGI_PTYPE_EFS 7
1375#define SGI_PTYPE_LVOL 8
1376#define SGI_PTYPE_RLVOL 9
1377#define SGI_PTYPE_XFS 10
1378#define SGI_PTYPE_XFSLOG 11
1379#define SGI_PTYPE_XLV 12
1380#define SGI_PTYPE_XVM 13
1381
1382/* ------------------------------------------
1383 * sparc
1384 */
1385
1386#define SPARC_BOOT_BLOCK_OFFSET 512
1387#define SPARC_BOOT_BLOCK_BLOCKSIZE 512
1388#define SPARC_BOOT_BLOCK_MAX_SIZE (512 * 15)
1389 /* Magic string -- 32 bytes long (including the NUL) */
1390#define SPARC_BBINFO_MAGIC "NetBSD/sparc bootxx 20020515"
1391
1392
1393/* ------------------------------------------
1394 * sparc64
1395 */
1396
1397#define SPARC64_BOOT_BLOCK_OFFSET 512
1398#define SPARC64_BOOT_BLOCK_BLOCKSIZE 512
1399#define SPARC64_BOOT_BLOCK_MAX_SIZE (512 * 15)
1400
1401
1402/* ------------------------------------------
1403 * sun68k (sun2, sun3)
1404 */
1405
1406#define SUN68K_BOOT_BLOCK_OFFSET 512
1407#define SUN68K_BOOT_BLOCK_BLOCKSIZE 512
1408#define SUN68K_BOOT_BLOCK_MAX_SIZE (512 * 15)
1409 /* Magic string -- 32 bytes long (including the NUL) */
1410#define SUN68K_BBINFO_MAGIC "NetBSD/sun68k bootxx 20020515"
1411
1412
1413/* ------------------------------------------
1414 * vax --
1415 * VAX boot block information
1416 */
1417
1418struct vax_boot_block {
1419/* Note that these don't overlap any of the pmax boot block */
1420 uint8_t pad0[2];
1421 uint8_t bb_id_offset; /* offset in words to id (magic1)*/
1422 uint8_t bb_mbone; /* must be one */
1423 uint16_t bb_lbn_hi; /* lbn (hi word) of bootstrap */
1424 uint16_t bb_lbn_low; /* lbn (low word) of bootstrap */
1425 uint8_t pad1[406];
1426 /* disklabel offset is 64 from base, or 56 from start of pad1 */
1427
1428 /* The rest of these fields are identification area and describe
1429 * the secondary block for uVAX VMB.
1430 */
1431 uint8_t bb_magic1; /* magic number */
1432 uint8_t bb_mbz1; /* must be zero */
1433 uint8_t bb_pad1; /* any value */
1434 uint8_t bb_sum1; /* ~(magic1 + mbz1 + pad1) */
1435
1436 uint8_t bb_mbz2; /* must be zero */
1437 uint8_t bb_volinfo; /* volinfo */
1438 uint8_t bb_pad2a; /* any value */
1439 uint8_t bb_pad2b; /* any value */
1440
1441 uint32_t bb_size; /* size in blocks of bootstrap */
1442 uint32_t bb_load; /* load offset to bootstrap */
1443 uint32_t bb_entry; /* byte offset in bootstrap */
1444 uint32_t bb_sum3; /* sum of previous 3 fields */
1445
1446 /* The rest is unused.
1447 */
1448 uint8_t pad2[74];
1449} __packed;
1450
1451#define VAX_BOOT_MAGIC1 0x18 /* size of BB info? */
1452#define VAX_BOOT_VOLINFO_NONE 0x00 /* no special info */
1453#define VAX_BOOT_VOLINFO_SS 0x01 /* single sided */
1454#define VAX_BOOT_VOLINFO_DS 0x81 /* double sided */
1455
1456#define VAX_BOOT_SIZE 15 /* 15 blocks */
1457#define VAX_BOOT_LOAD 0 /* no load offset */
1458#define VAX_BOOT_ENTRY 0x200 /* one block in */
1459
1460#define VAX_BOOT_BLOCK_OFFSET 0
1461#define VAX_BOOT_BLOCK_BLOCKSIZE 512
1462
1463
1464/* ------------------------------------------
1465 * x68k
1466 */
1467
1468#define X68K_BOOT_BLOCK_OFFSET 0
1469#define X68K_BOOT_BLOCK_BLOCKSIZE 512
1470#define X68K_BOOT_BLOCK_MAX_SIZE (512 * 16)
1471 /* Magic string -- 32 bytes long (including the NUL) */
1472#define X68K_BBINFO_MAGIC "NetBSD/x68k bootxx 20020601"
1473
1474#endif /* !defined(__ASSEMBLER__) */ /* } */
1475
1476#endif /* !_SYS_BOOTBLOCK_H */
