FreeBSD/Linux Kernel Cross Reference
sys/sys/bootblock.h
1 /* $NetBSD: bootblock.h,v 1.45 2008/04/28 20:24:10 martin 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 * 440 - 443 M WinNT/2K/XP Drive Serial Number (NT DSN)
172 * http://www.geocities.com/thestarman3/asm/mbr/Win2kmbr.htm
173 *
174 * 444 - 445 FMP bootcode or unused
175 * NetBSD: mbr_bootsel_magic
176 *
177 * 446 - 509 M partition table
178 *
179 * 510 - 511 FMP magic number (0xAA55)
180 *
181 * Use:
182 * ----
183 * F Floppy boot sector
184 * M Master Boot Record
185 * P Partition Boot record
186 *
187 */
188
189 /*
190 * MBR (Master Boot Record)
191 */
192 #define MBR_BBSECTOR 0 /* MBR relative sector # */
193 #define MBR_BPB_OFFSET 11 /* offsetof(mbr_sector, mbr_bpb) */
194 #define MBR_BOOTCODE_OFFSET 90 /* offsetof(mbr_sector, mbr_bootcode) */
195 #define MBR_BS_OFFSET 400 /* offsetof(mbr_sector, mbr_bootsel) */
196 #define MBR_BS_OLD_OFFSET 404 /* where mbr_bootsel used to be */
197 #define MBR_DSN_OFFSET 440 /* offsetof(mbr_sector, mbr_dsn) */
198 #define MBR_BS_MAGIC_OFFSET 444 /* offsetof(mbr_sector, mbr_bootsel_magic) */
199 #define MBR_PART_OFFSET 446 /* offsetof(mbr_sector, mbr_part[0]) */
200 #define MBR_MAGIC_OFFSET 510 /* offsetof(mbr_sector, mbr_magic) */
201 #define MBR_MAGIC 0xaa55 /* MBR magic number */
202 #define MBR_BS_MAGIC 0xb5e1 /* mbr_bootsel magic number */
203 #define MBR_PART_COUNT 4 /* Number of partitions in MBR */
204 #define MBR_BS_PARTNAMESIZE 8 /* Size of name mbr_bootsel nametab */
205 /* (excluding trailing NUL) */
206
207 /* values for mbr_partition.mbrp_flag */
208 #define MBR_PFLAG_ACTIVE 0x80 /* The active partition */
209
210 /* values for mbr_partition.mbrp_type */
211 #define MBR_PTYPE_UNUSED 0x00 /* Unused */
212 #define MBR_PTYPE_FAT12 0x01 /* 12-bit FAT */
213 #define MBR_PTYPE_XENIX_ROOT 0x02 /* XENIX / */
214 #define MBR_PTYPE_XENIX_USR 0x03 /* XENIX /usr */
215 #define MBR_PTYPE_FAT16S 0x04 /* 16-bit FAT, less than 32M */
216 #define MBR_PTYPE_EXT 0x05 /* extended partition */
217 #define MBR_PTYPE_FAT16B 0x06 /* 16-bit FAT, more than 32M */
218 #define MBR_PTYPE_NTFS 0x07 /* OS/2 HPFS, NTFS, QNX2, Adv. UNIX */
219 #define MBR_PTYPE_DELL 0x08 /* AIX or os, or etc. */
220 #define MBR_PTYPE_AIX_BOOT 0x09 /* AIX boot partition or Coherent */
221 #define MBR_PTYPE_OS2_BOOT 0x0a /* O/2 boot manager or Coherent swap */
222 #define MBR_PTYPE_FAT32 0x0b /* 32-bit FAT */
223 #define MBR_PTYPE_FAT32L 0x0c /* 32-bit FAT, LBA-mapped */
224 #define MBR_PTYPE_7XXX 0x0d /* 7XXX, LBA-mapped */
225 #define MBR_PTYPE_FAT16L 0x0e /* 16-bit FAT, LBA-mapped */
226 #define MBR_PTYPE_EXT_LBA 0x0f /* extended partition, LBA-mapped */
227 #define MBR_PTYPE_OPUS 0x10 /* OPUS */
228 #define MBR_PTYPE_OS2_DOS12 0x11 /* OS/2 DOS 12-bit FAT */
229 #define MBR_PTYPE_COMPAQ_DIAG 0x12 /* Compaq diagnostics */
230 #define MBR_PTYPE_OS2_DOS16S 0x14 /* OS/2 DOS 16-bit FAT <32M */
231 #define MBR_PTYPE_OS2_DOS16B 0x16 /* OS/2 DOS 16-bit FAT >=32M */
232 #define MBR_PTYPE_OS2_IFS 0x17 /* OS/2 hidden IFS */
233 #define MBR_PTYPE_AST_SWAP 0x18 /* AST Windows swapfile */
234 #define MBR_PTYPE_WILLOWTECH 0x19 /* Willowtech Photon coS */
235 #define MBR_PTYPE_HID_FAT32 0x1b /* hidden win95 fat 32 */
236 #define MBR_PTYPE_HID_FAT32_LBA 0x1c /* hidden win95 fat 32 lba */
237 #define MBR_PTYPE_HID_FAT16_LBA 0x1d /* hidden win95 fat 16 lba */
238 #define MBR_PTYPE_WILLOWSOFT 0x20 /* Willowsoft OFS1 */
239 #define MBR_PTYPE_RESERVED_x21 0x21 /* reserved */
240 #define MBR_PTYPE_RESERVED_x23 0x23 /* reserved */
241 #define MBR_PTYPE_RESERVED_x24 0x24 /* NEC DOS */
242 #define MBR_PTYPE_RESERVED_x26 0x26 /* reserved */
243 #define MBR_PTYPE_RESERVED_x31 0x31 /* reserved */
244 #define MBR_PTYPE_NOS 0x32 /* Alien Internet Services NOS */
245 #define MBR_PTYPE_RESERVED_x33 0x33 /* reserved */
246 #define MBR_PTYPE_RESERVED_x34 0x34 /* reserved */
247 #define MBR_PTYPE_OS2_JFS 0x35 /* JFS on OS2 */
248 #define MBR_PTYPE_RESERVED_x36 0x36 /* reserved */
249 #define MBR_PTYPE_THEOS 0x38 /* Theos */
250 #define MBR_PTYPE_PLAN9 0x39 /* Plan 9, or Theos spanned */
251 #define MBR_PTYPE_THEOS_4GB 0x3a /* Theos ver 4 4gb partition */
252 #define MBR_PTYPE_THEOS_EXT 0x3b /* Theos ve 4 extended partition */
253 #define MBR_PTYPE_PMRECOVERY 0x3c /* PartitionMagic recovery */
254 #define MBR_PTYPE_HID_NETWARE 0x3d /* Hidden Netware */
255 #define MBR_PTYPE_VENIX 0x40 /* VENIX 286 or LynxOS */
256 #define MBR_PTYPE_PREP 0x41 /* PReP */
257 #define MBR_PTYPE_DRDOS_LSWAP 0x42 /* linux swap sharing DRDOS disk */
258 #define MBR_PTYPE_DRDOS_LINUX 0x43 /* linux sharing DRDOS disk */
259 #define MBR_PTYPE_GOBACK 0x44 /* GoBack change utility */
260 #define MBR_PTYPE_BOOT_US 0x45 /* Boot US Boot manager */
261 #define MBR_PTYPE_EUMEL_x46 0x46 /* EUMEL/Elan or Ergos 3 */
262 #define MBR_PTYPE_EUMEL_x47 0x47 /* EUMEL/Elan or Ergos 3 */
263 #define MBR_PTYPE_EUMEL_x48 0x48 /* EUMEL/Elan or Ergos 3 */
264 #define MBR_PTYPE_ALFS_THIN 0x4a /* ALFX/THIN filesystem for DOS */
265 #define MBR_PTYPE_OBERON 0x4c /* Oberon partition */
266 #define MBR_PTYPE_QNX4X 0x4d /* QNX4.x */
267 #define MBR_PTYPE_QNX4X_2 0x4e /* QNX4.x 2nd part */
268 #define MBR_PTYPE_QNX4X_3 0x4f /* QNX4.x 3rd part */
269 #define MBR_PTYPE_DM 0x50 /* DM (disk manager) */
270 #define MBR_PTYPE_DM6_AUX1 0x51 /* DM6 Aux1 (or Novell) */
271 #define MBR_PTYPE_CPM 0x52 /* CP/M or Microport SysV/AT */
272 #define MBR_PTYPE_DM6_AUX3 0x53 /* DM6 Aux3 */
273 #define MBR_PTYPE_DM6_DDO 0x54 /* DM6 DDO */
274 #define MBR_PTYPE_EZDRIVE 0x55 /* EZ-Drive (disk manager) */
275 #define MBR_PTYPE_GOLDEN_BOW 0x56 /* Golden Bow (disk manager) */
276 #define MBR_PTYPE_DRIVE_PRO 0x57 /* Drive PRO */
277 #define MBR_PTYPE_PRIAM_EDISK 0x5c /* Priam Edisk (disk manager) */
278 #define MBR_PTYPE_SPEEDSTOR 0x61 /* SpeedStor */
279 #define MBR_PTYPE_HURD 0x63 /* GNU HURD or Mach or Sys V/386 */
280 #define MBR_PTYPE_NOVELL_2XX 0x64 /* Novell Netware 2.xx or Speedstore */
281 #define MBR_PTYPE_NOVELL_3XX 0x65 /* Novell Netware 3.xx */
282 #define MBR_PTYPE_NOVELL_386 0x66 /* Novell 386 Netware */
283 #define MBR_PTYPE_NOVELL_x67 0x67 /* Novell */
284 #define MBR_PTYPE_NOVELL_x68 0x68 /* Novell */
285 #define MBR_PTYPE_NOVELL_x69 0x69 /* Novell */
286 #define MBR_PTYPE_DISKSECURE 0x70 /* DiskSecure Multi-Boot */
287 #define MBR_PTYPE_RESERVED_x71 0x71 /* reserved */
288 #define MBR_PTYPE_RESERVED_x73 0x73 /* reserved */
289 #define MBR_PTYPE_RESERVED_x74 0x74 /* reserved */
290 #define MBR_PTYPE_PCIX 0x75 /* PC/IX */
291 #define MBR_PTYPE_RESERVED_x76 0x76 /* reserved */
292 #define MBR_PTYPE_M2FS_M2CS 0x77 /* M2FS/M2CS partition */
293 #define MBR_PTYPE_XOSL_FS 0x78 /* XOSL boot loader filesystem */
294 #define MBR_PTYPE_MINIX_14A 0x80 /* MINIX until 1.4a */
295 #define MBR_PTYPE_MINIX_14B 0x81 /* MINIX since 1.4b */
296 #define MBR_PTYPE_LNXSWAP 0x82 /* Linux swap or Solaris */
297 #define MBR_PTYPE_LNXEXT2 0x83 /* Linux native */
298 #define MBR_PTYPE_OS2_C 0x84 /* OS/2 hidden C: drive */
299 #define MBR_PTYPE_EXT_LNX 0x85 /* Linux extended partition */
300 #define MBR_PTYPE_NTFATVOL 0x86 /* NT FAT volume set */
301 #define MBR_PTYPE_NTFSVOL 0x87 /* NTFS volume set or HPFS mirrored */
302 #define MBR_PTYPE_LNX_KERNEL 0x8a /* Linux Kernel AiR-BOOT partition */
303 #define MBR_PTYPE_FT_FAT32 0x8b /* Legacy Fault tolerant FAT32 */
304 #define MBR_PTYPE_FT_FAT32_EXT 0x8c /* Legacy Fault tolerant FAT32 ext */
305 #define MBR_PTYPE_HID_FR_FD_12 0x8d /* Hidden free FDISK FAT12 */
306 #define MBR_PTYPE_LNX_LVM 0x8e /* Linux Logical Volume Manager */
307 #define MBR_PTYPE_HID_FR_FD_16 0x90 /* Hidden free FDISK FAT16 */
308 #define MBR_PTYPE_HID_FR_FD_EXT 0x91 /* Hidden free FDISK DOS EXT */
309 #define MBR_PTYPE_HID_FR_FD_16B 0x92 /* Hidden free FDISK FAT16 Big */
310 #define MBR_PTYPE_AMOEBA_FS 0x93 /* Amoeba filesystem */
311 #define MBR_PTYPE_AMOEBA_BAD 0x94 /* Amoeba bad block table */
312 #define MBR_PTYPE_MIT_EXOPC 0x95 /* MIT EXOPC native partitions */
313 #define MBR_PTYPE_HID_FR_FD_32 0x97 /* Hidden free FDISK FAT32 */
314 #define MBR_PTYPE_DATALIGHT 0x98 /* Datalight ROM-DOS Super-Boot */
315 #define MBR_PTYPE_MYLEX 0x99 /* Mylex EISA SCSI */
316 #define MBR_PTYPE_HID_FR_FD_16L 0x9a /* Hidden free FDISK FAT16 LBA */
317 #define MBR_PTYPE_HID_FR_FD_EXL 0x9b /* Hidden free FDISK EXT LBA */
318 #define MBR_PTYPE_BSDI 0x9f /* BSDI? */
319 #define MBR_PTYPE_IBM_HIB 0xa0 /* IBM Thinkpad hibernation */
320 #define MBR_PTYPE_HP_VOL_xA1 0xa1 /* HP Volume expansion (SpeedStor) */
321 #define MBR_PTYPE_HP_VOL_xA3 0xa3 /* HP Volume expansion (SpeedStor) */
322 #define MBR_PTYPE_HP_VOL_xA4 0xa4 /* HP Volume expansion (SpeedStor) */
323 #define MBR_PTYPE_386BSD 0xa5 /* 386BSD partition type */
324 #define MBR_PTYPE_OPENBSD 0xa6 /* OpenBSD partition type */
325 #define MBR_PTYPE_NEXTSTEP_486 0xa7 /* NeXTSTEP 486 */
326 #define MBR_PTYPE_APPLE_UFS 0xa8 /* Apple UFS */
327 #define MBR_PTYPE_NETBSD 0xa9 /* NetBSD partition type */
328 #define MBR_PTYPE_OLIVETTI 0xaa /* Olivetty Fat12 1.44MB Service part */
329 #define MBR_PTYPE_APPLE_BOOT 0xab /* Apple Boot */
330 #define MBR_PTYPE_SHAG_OS 0xae /* SHAG OS filesystem */
331 #define MBR_PTYPE_APPLE_HFS 0xaf /* Apple HFS */
332 #define MBR_PTYPE_BOOTSTAR_DUM 0xb0 /* BootStar Dummy */
333 #define MBR_PTYPE_RESERVED_xB1 0xb1 /* reserved */
334 #define MBR_PTYPE_RESERVED_xB3 0xb3 /* reserved */
335 #define MBR_PTYPE_RESERVED_xB4 0xb4 /* reserved */
336 #define MBR_PTYPE_RESERVED_xB6 0xb6 /* reserved */
337 #define MBR_PTYPE_BSDI_386 0xb7 /* BSDI BSD/386 filesystem */
338 #define MBR_PTYPE_BSDI_SWAP 0xb8 /* BSDI BSD/386 swap */
339 #define MBR_PTYPE_BOOT_WIZARD 0xbb /* Boot Wizard Hidden */
340 #define MBR_PTYPE_SOLARIS_8 0xbe /* Solaris 8 partition type */
341 #define MBR_PTYPE_SOLARIS 0xbf /* Solaris partition type */
342 #define MBR_PTYPE_CTOS 0xc0 /* CTOS */
343 #define MBR_PTYPE_DRDOS_FAT12 0xc1 /* DRDOS/sec (FAT-12) */
344 #define MBR_PTYPE_HID_LNX 0xc2 /* Hidden Linux */
345 #define MBR_PTYPE_HID_LNX_SWAP 0xc3 /* Hidden Linux swap */
346 #define MBR_PTYPE_DRDOS_FAT16S 0xc4 /* DRDOS/sec (FAT-16, < 32M) */
347 #define MBR_PTYPE_DRDOS_EXT 0xc5 /* DRDOS/sec (EXT) */
348 #define MBR_PTYPE_DRDOS_FAT16B 0xc6 /* DRDOS/sec (FAT-16, >= 32M) */
349 #define MBR_PTYPE_SYRINX 0xc7 /* Syrinx (Cyrnix?) or HPFS disabled */
350 #define MBR_PTYPE_DRDOS_8_xC8 0xc8 /* Reserved for DR-DOS 8.0+ */
351 #define MBR_PTYPE_DRDOS_8_xC9 0xc9 /* Reserved for DR-DOS 8.0+ */
352 #define MBR_PTYPE_DRDOS_8_xCA 0xca /* Reserved for DR-DOS 8.0+ */
353 #define MBR_PTYPE_DRDOS_74_CHS 0xcb /* DR-DOS 7.04+ Secured FAT32 CHS */
354 #define MBR_PTYPE_DRDOS_74_LBA 0xcc /* DR-DOS 7.04+ Secured FAT32 LBA */
355 #define MBR_PTYPE_CTOS_MEMDUMP 0xcd /* CTOS Memdump */
356 #define MBR_PTYPE_DRDOS_74_16X 0xce /* DR-DOS 7.04+ FAT16X LBA */
357 #define MBR_PTYPE_DRDOS_74_EXT 0xcf /* DR-DOS 7.04+ EXT LBA */
358 #define MBR_PTYPE_REAL32 0xd0 /* REAL/32 secure big partition */
359 #define MBR_PTYPE_MDOS_FAT12 0xd1 /* Old Multiuser DOS FAT12 */
360 #define MBR_PTYPE_MDOS_FAT16S 0xd4 /* Old Multiuser DOS FAT16 Small */
361 #define MBR_PTYPE_MDOS_EXT 0xd5 /* Old Multiuser DOS Extended */
362 #define MBR_PTYPE_MDOS_FAT16B 0xd6 /* Old Multiuser DOS FAT16 Big */
363 #define MBR_PTYPE_CPM_86 0xd8 /* CP/M 86 */
364 #define MBR_PTYPE_CONCURRENT 0xdb /* CP/M or Concurrent CP/M */
365 #define MBR_PTYPE_HID_CTOS_MEM 0xdd /* Hidden CTOS Memdump */
366 #define MBR_PTYPE_DELL_UTIL 0xde /* Dell PowerEdge Server utilities */
367 #define MBR_PTYPE_DGUX_VIRTUAL 0xdf /* DG/UX virtual disk manager */
368 #define MBR_PTYPE_STMICROELEC 0xe0 /* STMicroelectronics ST AVFS */
369 #define MBR_PTYPE_DOS_ACCESS 0xe1 /* DOS access or SpeedStor 12-bit */
370 #define MBR_PTYPE_STORDIM 0xe3 /* DOS R/O or Storage Dimensions */
371 #define MBR_PTYPE_SPEEDSTOR_16S 0xe4 /* SpeedStor 16-bit FAT < 1024 cyl. */
372 #define MBR_PTYPE_RESERVED_xE5 0xe5 /* reserved */
373 #define MBR_PTYPE_RESERVED_xE6 0xe6 /* reserved */
374 #define MBR_PTYPE_BEOS 0xeb /* BeOS */
375 #define MBR_PTYPE_PMBR 0xee /* GPT Protective MBR */
376 #define MBR_PTYPE_EFI 0xef /* EFI system partition */
377 #define MBR_PTYPE_LNX_PA_RISC 0xf0 /* Linux PA-RISC boot loader */
378 #define MBR_PTYPE_SPEEDSTOR_X 0xf1 /* SpeedStor or Storage Dimensions */
379 #define MBR_PTYPE_DOS33_SEC 0xf2 /* DOS 3.3+ Secondary */
380 #define MBR_PTYPE_RESERVED_xF3 0xf3 /* reserved */
381 #define MBR_PTYPE_SPEEDSTOR_L 0xf4 /* SpeedStor large partition */
382 #define MBR_PTYPE_PROLOGUE 0xf5 /* Prologue multi-volumen partition */
383 #define MBR_PTYPE_RESERVED_xF6 0xf6 /* reserved */
384 #define MBR_PTYPE_PCACHE 0xf9 /* pCache: ext2/ext3 persistent cache */
385 #define MBR_PTYPE_BOCHS 0xfa /* Bochs x86 emulator */
386 #define MBR_PTYPE_VMWARE 0xfb /* VMware File System */
387 #define MBR_PTYPE_VMWARE_SWAP 0xfc /* VMware Swap */
388 #define MBR_PTYPE_LNX_RAID 0xfd /* Linux RAID partition persistent sb */
389 #define MBR_PTYPE_LANSTEP 0xfe /* LANstep or IBM PS/2 IML */
390 #define MBR_PTYPE_XENIX_BAD 0xff /* Xenix Bad Block Table */
391
392 #ifdef MBRPTYPENAMES
393 static const struct mbr_ptype {
394 int id;
395 const char *name;
396 } mbr_ptypes[] = {
397 { MBR_PTYPE_UNUSED, "<UNUSED>" },
398 { MBR_PTYPE_FAT12, "Primary DOS with 12 bit FAT" },
399 { MBR_PTYPE_XENIX_ROOT, "XENIX / filesystem" },
400 { MBR_PTYPE_XENIX_USR, "XENIX /usr filesystem" },
401 { MBR_PTYPE_FAT16S, "Primary DOS with 16 bit FAT <32M" },
402 { MBR_PTYPE_EXT, "Extended partition" },
403 { MBR_PTYPE_FAT16B, "Primary 'big' DOS, 16-bit FAT (> 32MB)" },
404 { MBR_PTYPE_NTFS, "NTFS, OS/2 HPFS, QNX2 or Advanced UNIX" },
405 { MBR_PTYPE_DELL, "AIX filesystem or OS/2 (thru v1.3) or DELL "
406 "multiple drives or Commodore DOS or SplitDrive" },
407 { MBR_PTYPE_AIX_BOOT, "AIX boot partition or Coherent" },
408 { MBR_PTYPE_OS2_BOOT, "OS/2 Boot Manager or Coherent swap or OPUS" },
409 { MBR_PTYPE_FAT32, "Primary DOS with 32 bit FAT" },
410 { MBR_PTYPE_FAT32L, "Primary DOS with 32 bit FAT - LBA" },
411 { MBR_PTYPE_7XXX, "Type 7??? - LBA" },
412 { MBR_PTYPE_FAT16L, "DOS (16-bit FAT) - LBA" },
413 { MBR_PTYPE_EXT_LBA, "Ext. partition - LBA" },
414 { MBR_PTYPE_OPUS, "OPUS" },
415 { MBR_PTYPE_OS2_DOS12, "OS/2 BM: hidden DOS 12-bit FAT" },
416 { MBR_PTYPE_COMPAQ_DIAG, "Compaq diagnostics" },
417 { MBR_PTYPE_OS2_DOS16S, "OS/2 BM: hidden DOS 16-bit FAT <32M "
418 "or Novell DOS 7.0 bug" },
419 { MBR_PTYPE_OS2_DOS16B, "OS/2 BM: hidden DOS 16-bit FAT >=32M" },
420 { MBR_PTYPE_OS2_IFS, "OS/2 BM: hidden IFS" },
421 { MBR_PTYPE_AST_SWAP, "AST Windows swapfile" },
422 { MBR_PTYPE_WILLOWTECH, "Willowtech Photon coS" },
423 { MBR_PTYPE_HID_FAT32, "hidden Windows/95 FAT32" },
424 { MBR_PTYPE_HID_FAT32_LBA, "hidden Windows/95 FAT32 LBA" },
425 { MBR_PTYPE_HID_FAT16_LBA, "hidden Windows/95 FAT16 LBA" },
426 { MBR_PTYPE_WILLOWSOFT, "Willowsoft OFS1" },
427 { MBR_PTYPE_RESERVED_x21, "reserved" },
428 { MBR_PTYPE_RESERVED_x23, "reserved" },
429 { MBR_PTYPE_RESERVED_x24, "NEC DOS"},
430 { MBR_PTYPE_RESERVED_x26, "reserved" },
431 { MBR_PTYPE_RESERVED_x31, "reserved" },
432 { MBR_PTYPE_NOS, "Alien Internet Services NOS" },
433 { MBR_PTYPE_RESERVED_x33, "reserved" },
434 { MBR_PTYPE_RESERVED_x34, "reserved" },
435 { MBR_PTYPE_OS2_JFS, "JFS on OS2" },
436 { MBR_PTYPE_RESERVED_x36, "reserved" },
437 { MBR_PTYPE_THEOS, "Theos" },
438 { MBR_PTYPE_PLAN9, "Plan 9" },
439 { MBR_PTYPE_PLAN9, "Plan 9, or Theos spanned" },
440 { MBR_PTYPE_THEOS_4GB, "Theos ver 4 4gb partition" },
441 { MBR_PTYPE_THEOS_EXT, "Theos ve 4 extended partition" },
442 { MBR_PTYPE_PMRECOVERY, "PartitionMagic recovery" },
443 { MBR_PTYPE_HID_NETWARE, "Hidden Netware" },
444 { MBR_PTYPE_VENIX, "VENIX 286 or LynxOS" },
445 { MBR_PTYPE_PREP, "Linux/MINIX (sharing disk with DRDOS) "
446 "or Personal RISC boot" },
447 { MBR_PTYPE_DRDOS_LSWAP, "SFS or Linux swap "
448 "(sharing disk with DRDOS)" },
449 { MBR_PTYPE_DRDOS_LINUX, "Linux native (sharing disk with DRDOS)" },
450 { MBR_PTYPE_GOBACK, "GoBack change utility" },
451 { MBR_PTYPE_BOOT_US, "Boot US Boot manager" },
452 { MBR_PTYPE_EUMEL_x46, "EUMEL/Elan or Ergos 3" },
453 { MBR_PTYPE_EUMEL_x47, "EUMEL/Elan or Ergos 3" },
454 { MBR_PTYPE_EUMEL_x48, "EUMEL/Elan or Ergos 3" },
455 { MBR_PTYPE_ALFS_THIN, "ALFX/THIN filesystem for DOS" },
456 { MBR_PTYPE_OBERON, "Oberon partition" },
457 { MBR_PTYPE_QNX4X, "QNX4.x" },
458 { MBR_PTYPE_QNX4X_2, "QNX4.x 2nd part" },
459 { MBR_PTYPE_QNX4X_3, "QNX4.x 3rd part" },
460 { MBR_PTYPE_DM, "DM (disk manager)" },
461 { MBR_PTYPE_DM6_AUX1, "DM6 Aux1 (or Novell)" },
462 { MBR_PTYPE_CPM, "CP/M or Microport SysV/AT" },
463 { MBR_PTYPE_DM6_AUX3, "DM6 Aux3" },
464 { MBR_PTYPE_DM6_DDO, "DM6 DDO" },
465 { MBR_PTYPE_EZDRIVE, "EZ-Drive (disk manager)" },
466 { MBR_PTYPE_GOLDEN_BOW, "Golden Bow (disk manager)" },
467 { MBR_PTYPE_DRIVE_PRO, "Drive PRO" },
468 { MBR_PTYPE_PRIAM_EDISK, "Priam Edisk (disk manager)" },
469 { MBR_PTYPE_SPEEDSTOR, "SpeedStor" },
470 { MBR_PTYPE_HURD, "GNU HURD or Mach or Sys V/386 "
471 "(such as ISC UNIX) or MtXinu" },
472 { MBR_PTYPE_NOVELL_2XX, "Novell Netware 2.xx or Speedstore" },
473 { MBR_PTYPE_NOVELL_3XX, "Novell Netware 3.xx" },
474 { MBR_PTYPE_NOVELL_386, "Novell 386 Netware" },
475 { MBR_PTYPE_NOVELL_x67, "Novell" },
476 { MBR_PTYPE_NOVELL_x68, "Novell" },
477 { MBR_PTYPE_NOVELL_x69, "Novell" },
478 { MBR_PTYPE_DISKSECURE, "DiskSecure Multi-Boot" },
479 { MBR_PTYPE_RESERVED_x71, "reserved" },
480 { MBR_PTYPE_RESERVED_x73, "reserved" },
481 { MBR_PTYPE_RESERVED_x74, "reserved" },
482 { MBR_PTYPE_PCIX, "PC/IX" },
483 { MBR_PTYPE_RESERVED_x76, "reserved" },
484 { MBR_PTYPE_M2FS_M2CS, "M2FS/M2CS partition" },
485 { MBR_PTYPE_XOSL_FS, "XOSL boot loader filesystem" },
486 { MBR_PTYPE_MINIX_14A, "MINIX until 1.4a" },
487 { MBR_PTYPE_MINIX_14B, "MINIX since 1.4b, early Linux, Mitac dmgr" },
488 { MBR_PTYPE_LNXSWAP, "Linux swap or Prime or Solaris" },
489 { MBR_PTYPE_LNXEXT2, "Linux native" },
490 { MBR_PTYPE_OS2_C, "OS/2 hidden C: drive" },
491 { MBR_PTYPE_EXT_LNX, "Linux extended" },
492 { MBR_PTYPE_NTFATVOL, "NT FAT volume set" },
493 { MBR_PTYPE_NTFSVOL, "NTFS volume set or HPFS mirrored" },
494 { MBR_PTYPE_LNX_KERNEL, "Linux Kernel AiR-BOOT partition" },
495 { MBR_PTYPE_FT_FAT32, "Legacy Fault tolerant FAT32" },
496 { MBR_PTYPE_FT_FAT32_EXT, "Legacy Fault tolerant FAT32 ext" },
497 { MBR_PTYPE_HID_FR_FD_12, "Hidden free FDISK FAT12" },
498 { MBR_PTYPE_LNX_LVM, "Linux Logical Volume Manager" },
499 { MBR_PTYPE_HID_FR_FD_16, "Hidden free FDISK FAT16" },
500 { MBR_PTYPE_HID_FR_FD_EXT, "Hidden free FDISK DOS EXT" },
501 { MBR_PTYPE_HID_FR_FD_16L, "Hidden free FDISK FAT16 Large" },
502 { MBR_PTYPE_AMOEBA_FS, "Amoeba filesystem" },
503 { MBR_PTYPE_AMOEBA_BAD, "Amoeba bad block table" },
504 { MBR_PTYPE_MIT_EXOPC, "MIT EXOPC native partitions" },
505 { MBR_PTYPE_HID_FR_FD_32, "Hidden free FDISK FAT32" },
506 { MBR_PTYPE_DATALIGHT, "Datalight ROM-DOS Super-Boot" },
507 { MBR_PTYPE_MYLEX, "Mylex EISA SCSI" },
508 { MBR_PTYPE_HID_FR_FD_16L, "Hidden free FDISK FAT16 LBA" },
509 { MBR_PTYPE_HID_FR_FD_EXL, "Hidden free FDISK EXT LBA" },
510 { MBR_PTYPE_BSDI, "BSDI?" },
511 { MBR_PTYPE_IBM_HIB, "IBM Thinkpad hibernation" },
512 { MBR_PTYPE_HP_VOL_xA1, "HP Volume expansion (SpeedStor)" },
513 { MBR_PTYPE_HP_VOL_xA3, "HP Volume expansion (SpeedStor)" },
514 { MBR_PTYPE_HP_VOL_xA4, "HP Volume expansion (SpeedStor)" },
515 { MBR_PTYPE_386BSD, "FreeBSD or 386BSD or old NetBSD" },
516 { MBR_PTYPE_OPENBSD, "OpenBSD" },
517 { MBR_PTYPE_NEXTSTEP_486, "NeXTSTEP 486" },
518 { MBR_PTYPE_APPLE_UFS, "Apple UFS" },
519 { MBR_PTYPE_NETBSD, "NetBSD" },
520 { MBR_PTYPE_OLIVETTI, "Olivetty Fat12 1.44MB Service part" },
521 { MBR_PTYPE_SHAG_OS, "SHAG OS filesystem" },
522 { MBR_PTYPE_BOOTSTAR_DUM, "BootStar Dummy" },
523 { MBR_PTYPE_BOOT_WIZARD, "Boot Wizard Hidden" },
524 { MBR_PTYPE_APPLE_BOOT, "Apple Boot" },
525 { MBR_PTYPE_APPLE_HFS, "Apple HFS" },
526 { MBR_PTYPE_RESERVED_xB6, "reserved" },
527 { MBR_PTYPE_RESERVED_xB6, "reserved" },
528 { MBR_PTYPE_RESERVED_xB6, "reserved" },
529 { MBR_PTYPE_RESERVED_xB6, "reserved" },
530 { MBR_PTYPE_BSDI_386, "BSDI BSD/386 filesystem" },
531 { MBR_PTYPE_BSDI_SWAP, "BSDI BSD/386 swap" },
532 { MBR_PTYPE_SOLARIS_8, "Solaris 8 boot partition" },
533 { MBR_PTYPE_SOLARIS, "Solaris boot partition" },
534 { MBR_PTYPE_CTOS, "CTOS" },
535 { MBR_PTYPE_DRDOS_FAT12, "DRDOS/sec (FAT-12)" },
536 { MBR_PTYPE_HID_LNX, "Hidden Linux" },
537 { MBR_PTYPE_HID_LNX_SWAP, "Hidden Linux Swap" },
538 { MBR_PTYPE_DRDOS_FAT16S, "DRDOS/sec (FAT-16, < 32M)" },
539 { MBR_PTYPE_DRDOS_EXT, "DRDOS/sec (EXT)" },
540 { MBR_PTYPE_DRDOS_FAT16B, "DRDOS/sec (FAT-16, >= 32M)" },
541 { MBR_PTYPE_SYRINX, "Syrinx (Cyrnix?) or HPFS disabled" },
542 { MBR_PTYPE_DRDOS_8_xC8, "Reserved for DR-DOS 8.0+" },
543 { MBR_PTYPE_DRDOS_8_xC9, "Reserved for DR-DOS 8.0+" },
544 { MBR_PTYPE_DRDOS_8_xCA, "Reserved for DR-DOS 8.0+" },
545 { MBR_PTYPE_DRDOS_74_CHS, "DR-DOS 7.04+ Secured FAT32 CHS" },
546 { MBR_PTYPE_DRDOS_74_LBA, "DR-DOS 7.04+ Secured FAT32 LBA" },
547 { MBR_PTYPE_CTOS_MEMDUMP, "CTOS Memdump" },
548 { MBR_PTYPE_DRDOS_74_16X, "DR-DOS 7.04+ FAT16X LBA" },
549 { MBR_PTYPE_DRDOS_74_EXT, "DR-DOS 7.04+ EXT LBA" },
550 { MBR_PTYPE_REAL32, "REAL/32 secure big partition" },
551 { MBR_PTYPE_MDOS_FAT12, "Old Multiuser DOS FAT12" },
552 { MBR_PTYPE_MDOS_FAT16S, "Old Multiuser DOS FAT16 Small" },
553 { MBR_PTYPE_MDOS_EXT, "Old Multiuser DOS Extended" },
554 { MBR_PTYPE_MDOS_FAT16B, "Old Multiuser DOS FAT16 Big" },
555 { MBR_PTYPE_CPM_86, "CP/M 86" },
556 { MBR_PTYPE_CONCURRENT, "CP/M or Concurrent CP/M or Concurrent DOS "
557 "or CTOS" },
558 { MBR_PTYPE_HID_CTOS_MEM, "Hidden CTOS Memdump" },
559 { MBR_PTYPE_DELL_UTIL, "Dell PowerEdge Server utilities" },
560 { MBR_PTYPE_DGUX_VIRTUAL, "DG/UX virtual disk manager" },
561 { MBR_PTYPE_STMICROELEC, "STMicroelectronics ST AVFS" },
562 { MBR_PTYPE_DOS_ACCESS, "DOS access or SpeedStor 12-bit FAT "
563 "extended partition" },
564 { MBR_PTYPE_STORDIM, "DOS R/O or SpeedStor or Storage Dimensions" },
565 { MBR_PTYPE_SPEEDSTOR_16S, "SpeedStor 16-bit FAT extended partition "
566 "< 1024 cyl." },
567 { MBR_PTYPE_RESERVED_xE5, "reserved" },
568 { MBR_PTYPE_RESERVED_xE6, "reserved" },
569 { MBR_PTYPE_BEOS, "BeOS" },
570 { MBR_PTYPE_PMBR, "GPT Protective MBR" },
571 { MBR_PTYPE_EFI, "EFI system partition" },
572 { MBR_PTYPE_LNX_PA_RISC, "Linux PA-RISC boot loader" },
573 { MBR_PTYPE_SPEEDSTOR_X, "SpeedStor or Storage Dimensions" },
574 { MBR_PTYPE_DOS33_SEC, "DOS 3.3+ Secondary" },
575 { MBR_PTYPE_RESERVED_xF3, "reserved" },
576 { MBR_PTYPE_SPEEDSTOR_L, "SpeedStor large partition or "
577 "Storage Dimensions" },
578 { MBR_PTYPE_PROLOGUE, "Prologue multi-volumen partition" },
579 { MBR_PTYPE_RESERVED_xF6, "reserved" },
580 { MBR_PTYPE_PCACHE, "pCache: ext2/ext3 persistent cache" },
581 { MBR_PTYPE_BOCHS, "Bochs x86 emulator" },
582 { MBR_PTYPE_VMWARE, "VMware File System" },
583 { MBR_PTYPE_VMWARE_SWAP, "VMware Swap" },
584 { MBR_PTYPE_LNX_RAID, "Linux RAID partition persistent sb" },
585 { MBR_PTYPE_LANSTEP, "SpeedStor >1024 cyl. or LANstep "
586 "or IBM PS/2 IML" },
587 { MBR_PTYPE_XENIX_BAD, "Xenix Bad Block Table" },
588 };
589 #endif
590
591 #define MBR_PSECT(s) ((s) & 0x3f)
592 #define MBR_PCYL(c, s) ((c) + (((s) & 0xc0) << 2))
593
594 #define MBR_IS_EXTENDED(x) ((x) == MBR_PTYPE_EXT || \
595 (x) == MBR_PTYPE_EXT_LBA || \
596 (x) == MBR_PTYPE_EXT_LNX)
597
598 /* values for mbr_bootsel.mbrbs_flags */
599 #define MBR_BS_ACTIVE 0x01 /* Bootselector active (or code present) */
600 #define MBR_BS_EXTINT13 0x02 /* Set by fdisk if LBA needed (deprecated) */
601 #define MBR_BS_READ_LBA 0x04 /* Force LBA reads (deprecated) */
602 #define MBR_BS_EXTLBA 0x08 /* Extended ptn capable (LBA reads) */
603 #define MBR_BS_ASCII 0x10 /* Bootselect code needs ascii key code */
604 /* This is always set, the bootsel is located using the magic number... */
605 #define MBR_BS_NEWMBR 0x80 /* New bootsel at offset 440 */
606
607 #if !defined(__ASSEMBLER__) /* { */
608
609 /*
610 * (x86) BIOS Parameter Block for FAT12
611 */
612 struct mbr_bpbFAT12 {
613 uint16_t bpbBytesPerSec; /* bytes per sector */
614 uint8_t bpbSecPerClust; /* sectors per cluster */
615 uint16_t bpbResSectors; /* number of reserved sectors */
616 uint8_t bpbFATs; /* number of FATs */
617 uint16_t bpbRootDirEnts; /* number of root directory entries */
618 uint16_t bpbSectors; /* total number of sectors */
619 uint8_t bpbMedia; /* media descriptor */
620 uint16_t bpbFATsecs; /* number of sectors per FAT */
621 uint16_t bpbSecPerTrack; /* sectors per track */
622 uint16_t bpbHeads; /* number of heads */
623 uint16_t bpbHiddenSecs; /* # of hidden sectors */
624 } __packed;
625
626 /*
627 * (x86) BIOS Parameter Block for FAT16
628 */
629 struct mbr_bpbFAT16 {
630 uint16_t bpbBytesPerSec; /* bytes per sector */
631 uint8_t bpbSecPerClust; /* sectors per cluster */
632 uint16_t bpbResSectors; /* number of reserved sectors */
633 uint8_t bpbFATs; /* number of FATs */
634 uint16_t bpbRootDirEnts; /* number of root directory entries */
635 uint16_t bpbSectors; /* total number of sectors */
636 uint8_t bpbMedia; /* media descriptor */
637 uint16_t bpbFATsecs; /* number of sectors per FAT */
638 uint16_t bpbSecPerTrack; /* sectors per track */
639 uint16_t bpbHeads; /* number of heads */
640 uint32_t bpbHiddenSecs; /* # of hidden sectors */
641 uint32_t bpbHugeSectors; /* # of sectors if bpbSectors == 0 */
642 uint8_t bsDrvNum; /* Int 0x13 drive number (e.g. 0x80) */
643 uint8_t bsReserved1; /* Reserved; set to 0 */
644 uint8_t bsBootSig; /* 0x29 if next 3 fields are present */
645 uint8_t bsVolID[4]; /* Volume serial number */
646 uint8_t bsVolLab[11]; /* Volume label */
647 uint8_t bsFileSysType[8];
648 /* "FAT12 ", "FAT16 ", "FAT " */
649 } __packed;
650
651 /*
652 * (x86) BIOS Parameter Block for FAT32
653 */
654 struct mbr_bpbFAT32 {
655 uint16_t bpbBytesPerSec; /* bytes per sector */
656 uint8_t bpbSecPerClust; /* sectors per cluster */
657 uint16_t bpbResSectors; /* number of reserved sectors */
658 uint8_t bpbFATs; /* number of FATs */
659 uint16_t bpbRootDirEnts; /* number of root directory entries */
660 uint16_t bpbSectors; /* total number of sectors */
661 uint8_t bpbMedia; /* media descriptor */
662 uint16_t bpbFATsecs; /* number of sectors per FAT */
663 uint16_t bpbSecPerTrack; /* sectors per track */
664 uint16_t bpbHeads; /* number of heads */
665 uint32_t bpbHiddenSecs; /* # of hidden sectors */
666 uint32_t bpbHugeSectors; /* # of sectors if bpbSectors == 0 */
667 uint32_t bpbBigFATsecs; /* like bpbFATsecs for FAT32 */
668 uint16_t bpbExtFlags; /* extended flags: */
669 #define MBR_FAT32_FATNUM 0x0F /* mask for numbering active FAT */
670 #define MBR_FAT32_FATMIRROR 0x80 /* FAT is mirrored (as previously) */
671 uint16_t bpbFSVers; /* filesystem version */
672 #define MBR_FAT32_FSVERS 0 /* currently only 0 is understood */
673 uint32_t bpbRootClust; /* start cluster for root directory */
674 uint16_t bpbFSInfo; /* filesystem info structure sector */
675 uint16_t bpbBackup; /* backup boot sector */
676 uint8_t bsReserved[12]; /* Reserved for future expansion */
677 uint8_t bsDrvNum; /* Int 0x13 drive number (e.g. 0x80) */
678 uint8_t bsReserved1; /* Reserved; set to 0 */
679 uint8_t bsBootSig; /* 0x29 if next 3 fields are present */
680 uint8_t bsVolID[4]; /* Volume serial number */
681 uint8_t bsVolLab[11]; /* Volume label */
682 uint8_t bsFileSysType[8]; /* "FAT32 " */
683 } __packed;
684
685 /*
686 * (x86) MBR boot selector
687 */
688 struct mbr_bootsel {
689 uint8_t mbrbs_defkey;
690 uint8_t mbrbs_flags;
691 uint16_t mbrbs_timeo;
692 char mbrbs_nametab[MBR_PART_COUNT][MBR_BS_PARTNAMESIZE + 1];
693 } __packed;
694
695 /*
696 * MBR partition
697 */
698 struct mbr_partition {
699 uint8_t mbrp_flag; /* MBR partition flags */
700 uint8_t mbrp_shd; /* Starting head */
701 uint8_t mbrp_ssect; /* Starting sector */
702 uint8_t mbrp_scyl; /* Starting cylinder */
703 uint8_t mbrp_type; /* Partition type (see below) */
704 uint8_t mbrp_ehd; /* End head */
705 uint8_t mbrp_esect; /* End sector */
706 uint8_t mbrp_ecyl; /* End cylinder */
707 uint32_t mbrp_start; /* Absolute starting sector number */
708 uint32_t mbrp_size; /* Partition size in sectors */
709 } __packed;
710
711 int xlat_mbr_fstype(int); /* in sys/lib/libkern/xlat_mbr_fstype.c */
712
713 /*
714 * MBR boot sector.
715 * This is used by both the MBR (Master Boot Record) in sector 0 of the disk
716 * and the PBR (Partition Boot Record) in sector 0 of an MBR partition.
717 */
718 struct mbr_sector {
719 /* Jump instruction to boot code. */
720 /* Usually 0xE9nnnn or 0xEBnn90 */
721 uint8_t mbr_jmpboot[3];
722 /* OEM name and version */
723 uint8_t mbr_oemname[8];
724 union { /* BIOS Parameter Block */
725 struct mbr_bpbFAT12 bpb12;
726 struct mbr_bpbFAT16 bpb16;
727 struct mbr_bpbFAT32 bpb32;
728 } mbr_bpb;
729 /* Boot code */
730 uint8_t mbr_bootcode[310];
731 /* Config for /usr/mdec/mbr_bootsel */
732 struct mbr_bootsel mbr_bootsel;
733 /* NT Drive Serial Number */
734 uint32_t mbr_dsn;
735 /* mbr_bootsel magic */
736 uint16_t mbr_bootsel_magic;
737 /* MBR partition table */
738 struct mbr_partition mbr_parts[MBR_PART_COUNT];
739 /* MBR magic (0xaa55) */
740 uint16_t mbr_magic;
741 } __packed;
742
743 #endif /* !defined(__ASSEMBLER__) */ /* } */
744
745
746 /* ------------------------------------------
747 * shared --
748 * definitions shared by many platforms
749 */
750
751 #if !defined(__ASSEMBLER__) /* { */
752
753 /* Maximum # of blocks in bbi_block_table, each bbi_block_size long */
754 #define SHARED_BBINFO_MAXBLOCKS 118 /* so sizeof(shared_bbinfo) == 512 */
755
756 struct shared_bbinfo {
757 uint8_t bbi_magic[32];
758 int32_t bbi_block_size;
759 int32_t bbi_block_count;
760 int32_t bbi_block_table[SHARED_BBINFO_MAXBLOCKS];
761 };
762
763 /* ------------------------------------------
764 * alpha --
765 * Alpha (disk, but also tape) Boot Block.
766 *
767 * See Section (III) 3.6.1 of the Alpha Architecture Reference Manual.
768 */
769
770 struct alpha_boot_block {
771 uint64_t bb_data[63]; /* data (disklabel, also as below) */
772 uint64_t bb_cksum; /* checksum of the boot block,
773 * taken as uint64_t's
774 */
775 };
776 #define bb_secsize bb_data[60] /* secondary size (blocks) */
777 #define bb_secstart bb_data[61] /* secondary start (blocks) */
778 #define bb_flags bb_data[62] /* unknown flags (set to zero) */
779
780 #define ALPHA_BOOT_BLOCK_OFFSET 0 /* offset of boot block. */
781 #define ALPHA_BOOT_BLOCK_BLOCKSIZE 512 /* block size for sector
782 * size/start, and for boot
783 * block itself.
784 */
785
786 #define ALPHA_BOOT_BLOCK_CKSUM(bb,cksum) \
787 do { \
788 const struct alpha_boot_block *_bb = (bb); \
789 uint64_t _cksum; \
790 int _i; \
791 \
792 _cksum = 0; \
793 for (_i = 0; \
794 _i < (sizeof _bb->bb_data / sizeof _bb->bb_data[0]); \
795 _i++) \
796 _cksum += _bb->bb_data[_i]; \
797 *(cksum) = _cksum; \
798 } while (/*CONSTCOND*/ 0)
799
800 /* ------------------------------------------
801 * apple --
802 * Apple computers boot block related information
803 */
804
805 /*
806 * Driver Descriptor Map, from Inside Macintosh: Devices, SCSI Manager
807 * pp 12-13. The driver descriptor map always resides on physical block 0.
808 */
809 struct apple_drvr_descriptor {
810 uint32_t descBlock; /* first block of driver */
811 uint16_t descSize; /* driver size in blocks */
812 uint16_t descType; /* system type */
813 };
814
815 /*
816 * system types; Apple reserves 0-15
817 */
818 #define APPLE_DRVR_TYPE_MACINTOSH 1
819
820 #define APPLE_DRVR_MAP_MAGIC 0x4552
821 #define APPLE_DRVR_MAP_MAX_DESCRIPTORS 61
822
823 struct apple_drvr_map {
824 uint16_t sbSig; /* map signature */
825 uint16_t sbBlockSize; /* block size of device */
826 uint32_t sbBlkCount; /* number of blocks on device */
827 uint16_t sbDevType; /* (used internally by ROM) */
828 uint16_t sbDevID; /* (used internally by ROM) */
829 uint32_t sbData; /* (used internally by ROM) */
830 uint16_t sbDrvrCount; /* number of driver descriptors */
831 struct apple_drvr_descriptor sb_dd[APPLE_DRVR_MAP_MAX_DESCRIPTORS];
832 uint16_t pad[3];
833 } __packed;
834
835 /*
836 * Partition map structure from Inside Macintosh: Devices, SCSI Manager
837 * pp. 13-14. The partition map always begins on physical block 1.
838 *
839 * With the exception of block 0, all blocks on the disk must belong to
840 * exactly one partition. The partition map itself belongs to a partition
841 * of type `APPLE_PARTITION_MAP', and is not limited in size by anything
842 * other than available disk space. The partition map is not necessarily
843 * the first partition listed.
844 */
845 #define APPLE_PART_MAP_ENTRY_MAGIC 0x504d
846
847 struct apple_part_map_entry {
848 uint16_t pmSig; /* partition signature */
849 uint16_t pmSigPad; /* (reserved) */
850 uint32_t pmMapBlkCnt; /* number of blocks in partition map */
851 uint32_t pmPyPartStart; /* first physical block of partition */
852 uint32_t pmPartBlkCnt; /* number of blocks in partition */
853 uint8_t pmPartName[32]; /* partition name */
854 uint8_t pmPartType[32]; /* partition type */
855 uint32_t pmLgDataStart; /* first logical block of data area */
856 uint32_t pmDataCnt; /* number of blocks in data area */
857 uint32_t pmPartStatus; /* partition status information */
858 uint32_t pmLgBootStart; /* first logical block of boot code */
859 uint32_t pmBootSize; /* size of boot code, in bytes */
860 uint32_t pmBootLoad; /* boot code load address */
861 uint32_t pmBootLoad2; /* (reserved) */
862 uint32_t pmBootEntry; /* boot code entry point */
863 uint32_t pmBootEntry2; /* (reserved) */
864 uint32_t pmBootCksum; /* boot code checksum */
865 int8_t pmProcessor[16]; /* processor type (e.g. "68020") */
866 uint8_t pmBootArgs[128]; /* A/UX boot arguments */
867 uint8_t pad[248]; /* pad to end of block */
868 };
869
870 #define APPLE_PART_TYPE_DRIVER "APPLE_DRIVER"
871 #define APPLE_PART_TYPE_DRIVER43 "APPLE_DRIVER43"
872 #define APPLE_PART_TYPE_DRIVERATA "APPLE_DRIVER_ATA"
873 #define APPLE_PART_TYPE_DRIVERIOKIT "APPLE_DRIVER_IOKIT"
874 #define APPLE_PART_TYPE_FWDRIVER "APPLE_FWDRIVER"
875 #define APPLE_PART_TYPE_FWB_COMPONENT "FWB DRIVER COMPONENTS"
876 #define APPLE_PART_TYPE_FREE "APPLE_FREE"
877 #define APPLE_PART_TYPE_MAC "APPLE_HFS"
878 #define APPLE_PART_TYPE_NETBSD "NETBSD"
879 #define APPLE_PART_TYPE_NBSD_PPCBOOT "NETBSD/MACPPC"
880 #define APPLE_PART_TYPE_NBSD_68KBOOT "NETBSD/MAC68K"
881 #define APPLE_PART_TYPE_PATCHES "APPLE_PATCHES"
882 #define APPLE_PART_TYPE_PARTMAP "APPLE_PARTITION_MAP"
883 #define APPLE_PART_TYPE_PATCHES "APPLE_PATCHES"
884 #define APPLE_PART_TYPE_SCRATCH "APPLE_SCRATCH"
885 #define APPLE_PART_TYPE_UNIX "APPLE_UNIX_SVR2"
886
887 /*
888 * "pmBootArgs" for APPLE_UNIX_SVR2 partition.
889 * NetBSD/mac68k only uses Magic, Cluster, Type, and Flags.
890 */
891 struct apple_blockzeroblock {
892 uint32_t bzbMagic;
893 uint8_t bzbCluster;
894 uint8_t bzbType;
895 uint16_t bzbBadBlockInode;
896 uint16_t bzbFlags;
897 uint16_t bzbReserved;
898 uint32_t bzbCreationTime;
899 uint32_t bzbMountTime;
900 uint32_t bzbUMountTime;
901 };
902
903 #define APPLE_BZB_MAGIC 0xABADBABE
904 #define APPLE_BZB_TYPEFS 1
905 #define APPLE_BZB_TYPESWAP 3
906 #define APPLE_BZB_ROOTFS 0x8000
907 #define APPLE_BZB_USRFS 0x4000
908
909 /* ------------------------------------------
910 * ews4800mips
911 *
912 */
913
914 #define EWS4800MIPS_BBINFO_MAGIC "NetBSD/ews4800mips 20040611"
915 #define EWS4800MIPS_BOOT_BLOCK_OFFSET 0
916 #define EWS4800MIPS_BOOT_BLOCK_BLOCKSIZE 512
917 #define EWS4800MIPS_BOOT_BLOCK_MAX_SIZE (512 * 8)
918
919 /* ------------------------------------------
920 * hp300
921 *
922 */
923
924 /* volume header for "LIF" format volumes */
925
926 struct hp300_lifvol {
927 int16_t vol_id;
928 char vol_label[6];
929 int32_t vol_addr;
930 int16_t vol_oct;
931 int16_t vol_dummy;
932 int32_t vol_dirsize;
933 int16_t vol_version;
934 int16_t vol_zero;
935 int32_t vol_huh1;
936 int32_t vol_huh2;
937 int32_t vol_length;
938 };
939
940 /* LIF directory entry format */
941
942 struct hp300_lifdir {
943 char dir_name[10];
944 int16_t dir_type;
945 int32_t dir_addr;
946 int32_t dir_length;
947 char dir_toc[6];
948 int16_t dir_flag;
949 int32_t dir_exec;
950 };
951
952 /* load header for boot rom */
953 struct hp300_load {
954 int32_t address;
955 int32_t count;
956 };
957
958 #define HP300_VOL_ID -32768
959 #define HP300_VOL_OCT 4096
960 #define HP300_DIR_TYPE -5822
961 #define HP300_DIR_FLAG 0x8001 /* dont ask me! */
962 #define HP300_SECTSIZE 256
963
964
965 /* ------------------------------------------
966 * hp700
967 *
968 */
969
970 /*
971 * volume header for "LIF" format volumes
972 */
973 struct hp700_lifvol {
974 uint16_t vol_id;
975 uint8_t vol_label[6];
976 uint32_t vol_addr;
977 uint16_t vol_oct;
978 uint16_t vol_dummy;
979
980 uint32_t vol_dirsize;
981 uint16_t vol_version;
982 uint16_t vol_zero;
983 uint32_t vol_number;
984 uint32_t vol_lastvol;
985
986 uint32_t vol_length;
987 uint8_t vol_toc[6];
988 uint8_t vol_dummy1[198];
989
990 uint32_t ipl_addr;
991 uint32_t ipl_size;
992 uint32_t ipl_entry;
993
994 uint32_t vol_dummy2;
995 };
996
997 struct hp700_lifdir {
998 uint8_t dir_name[10];
999 uint16_t dir_type;
1000 uint32_t dir_addr;
1001 uint32_t dir_length;
1002 uint8_t dir_toc[6];
1003 uint16_t dir_flag;
1004 uint32_t dir_implement;
1005 };
1006
1007 struct hp700_lifload {
1008 int address;
1009 int count;
1010 };
1011
1012 #define HP700_LIF_VOL_ID 0x8000
1013 #define HP700_LIF_VOL_OCT 0x1000
1014 #define HP700_LIF_DIR_SWAP 0x5243
1015 #define HP700_LIF_DIR_FS 0xcd38
1016 #define HP700_LIF_DIR_IOMAP 0xcd60
1017 #define HP700_LIF_DIR_HPUX 0xcd80
1018 #define HP700_LIF_DIR_ISL 0xce00
1019 #define HP700_LIF_DIR_PAD 0xcffe
1020 #define HP700_LIF_DIR_AUTO 0xcfff
1021 #define HP700_LIF_DIR_EST 0xd001
1022 #define HP700_LIF_DIR_TYPE 0xe942
1023
1024 #define HP700_LIF_DIR_FLAG 0x8001 /* dont ask me! */
1025 #define HP700_LIF_SECTSIZE 256
1026
1027 #define HP700_LIF_NUMDIR 8
1028
1029 #define HP700_LIF_VOLSTART 0
1030 #define HP700_LIF_VOLSIZE sizeof(struct hp700_lifvol)
1031 #define HP700_LIF_DIRSTART 2048
1032 #define HP700_LIF_DIRSIZE (HP700_LIF_NUMDIR * sizeof(struct hp700_lifdir))
1033 #define HP700_LIF_FILESTART 4096
1034
1035 #define hp700_btolifs(b) (((b) + (HP700_LIF_SECTSIZE - 1)) / HP700_LIF_SECTSIZE)
1036 #define hp700_lifstob(s) ((s) * HP700_LIF_SECTSIZE)
1037 #define hp700_lifstodb(s) ((s) * HP700_LIF_SECTSIZE / DEV_BSIZE)
1038
1039
1040 /* ------------------------------------------
1041 * x86
1042 *
1043 */
1044
1045 /*
1046 * Parameters for NetBSD /boot written to start of pbr code by installboot
1047 */
1048
1049 struct x86_boot_params {
1050 uint32_t bp_length; /* length of patchable data */
1051 uint32_t bp_flags;
1052 uint32_t bp_timeout; /* boot timeout in seconds */
1053 uint32_t bp_consdev;
1054 uint32_t bp_conspeed;
1055 uint8_t bp_password[16]; /* md5 hash of password */
1056 char bp_keymap[64]; /* keyboard traslation map */
1057 uint32_t bp_consaddr; /* ioaddr for console */
1058 };
1059
1060 #endif /* !defined(__ASSEMBLER__) */ /* } */
1061
1062 #define X86_BOOT_MAGIC(n) ('x' << 24 | 0x86b << 12 | 'm' << 4 | (n))
1063 #define X86_BOOT_MAGIC_1 X86_BOOT_MAGIC(1) /* pbr.S */
1064 #define X86_BOOT_MAGIC_2 X86_BOOT_MAGIC(2) /* bootxx.S */
1065 #define X86_BOOT_MAGIC_PXE X86_BOOT_MAGIC(3) /* start_pxe.S */
1066 #define X86_BOOT_MAGIC_FAT X86_BOOT_MAGIC(4) /* fatboot.S */
1067
1068 /* values for bp_flags */
1069 #define X86_BP_FLAGS_RESET_VIDEO 1
1070 #define X86_BP_FLAGS_PASSWORD 2
1071
1072 /* values for bp_consdev */
1073 #define X86_BP_CONSDEV_PC 0
1074 #define X86_BP_CONSDEV_COM0 1
1075 #define X86_BP_CONSDEV_COM1 2
1076 #define X86_BP_CONSDEV_COM2 3
1077 #define X86_BP_CONSDEV_COM3 4
1078 #define X86_BP_CONSDEV_COM0KBD 5
1079 #define X86_BP_CONSDEV_COM1KBD 6
1080 #define X86_BP_CONSDEV_COM2KBD 7
1081 #define X86_BP_CONSDEV_COM3KBD 8
1082
1083 /* ------------------------------------------
1084 * landisk
1085 */
1086
1087 #if !defined(__ASSEMBLER__) /* { */
1088
1089 /*
1090 * Parameters for NetBSD /boot written to start of pbr code by installboot
1091 */
1092 struct landisk_boot_params {
1093 uint32_t bp_length; /* length of patchable data */
1094 uint32_t bp_flags;
1095 uint32_t bp_timeout; /* boot timeout in seconds */
1096 uint32_t bp_consdev;
1097 uint32_t bp_conspeed;
1098 };
1099
1100 #endif /* !defined(__ASSEMBLER__) */ /* } */
1101
1102 #define LANDISK_BOOT_MAGIC_1 0x20031125
1103 #define LANDISK_BOOT_MAGIC_2 0x20041110
1104
1105 #if !defined(__ASSEMBLER__) /* { */
1106
1107 /* ------------------------------------------
1108 * macppc
1109 */
1110
1111 #define MACPPC_BOOT_BLOCK_OFFSET 2048
1112 #define MACPPC_BOOT_BLOCK_BLOCKSIZE 512
1113 #define MACPPC_BOOT_BLOCK_MAX_SIZE 2048 /* XXX: could be up to 6144 */
1114 /* Magic string -- 32 bytes long (including the NUL) */
1115 #define MACPPC_BBINFO_MAGIC "NetBSD/macppc bootxx 20020515"
1116
1117 /* ------------------------------------------
1118 * news68k, newsmips
1119 */
1120
1121 #define NEWS_BOOT_BLOCK_LABELOFFSET 64 /* XXX from <machine/disklabel.h> */
1122 #define NEWS_BOOT_BLOCK_OFFSET 0
1123 #define NEWS_BOOT_BLOCK_BLOCKSIZE 512
1124 #define NEWS_BOOT_BLOCK_MAX_SIZE (512 * 16)
1125
1126 /* Magic string -- 32 bytes long (including the NUL) */
1127 #define NEWS68K_BBINFO_MAGIC "NetBSD/news68k bootxx 20020518"
1128 #define NEWSMIPS_BBINFO_MAGIC "NetBSD/newsmips bootxx 20020518"
1129
1130 /* ------------------------------------------
1131 * next68k
1132 */
1133
1134 #define NEXT68K_LABEL_MAXPARTITIONS 8 /* number of partitions in next68k_disklabel */
1135 #define NEXT68K_LABEL_CPULBLLEN 24
1136 #define NEXT68K_LABEL_MAXDNMLEN 24
1137 #define NEXT68K_LABEL_MAXTYPLEN 24
1138 #define NEXT68K_LABEL_MAXBFLEN 24
1139 #define NEXT68K_LABEL_MAXHNLEN 32
1140 #define NEXT68K_LABEL_MAXMPTLEN 16
1141 #define NEXT68K_LABEL_MAXFSTLEN 8
1142 #define NEXT68K_LABEL_NBAD 1670 /* sized to make label ~= 8KB */
1143
1144 struct next68k_partition {
1145 int32_t cp_offset; /* starting sector */
1146 int32_t cp_size; /* number of sectors in partition */
1147 int16_t cp_bsize; /* block size in bytes */
1148 int16_t cp_fsize; /* filesystem basic fragment size */
1149 char cp_opt; /* optimization type: 's'pace/'t'ime */
1150 char cp_pad1;
1151 int16_t cp_cpg; /* filesystem cylinders per group */
1152 int16_t cp_density; /* bytes per inode density */
1153 int8_t cp_minfree; /* minfree (%) */
1154 int8_t cp_newfs; /* run newfs during init */
1155 char cp_mountpt[NEXT68K_LABEL_MAXMPTLEN];
1156 /* default/standard mount point */
1157 int8_t cp_automnt; /* auto-mount when inserted */
1158 char cp_type[NEXT68K_LABEL_MAXFSTLEN]; /* file system type name */
1159 char cp_pad2;
1160 } __packed;
1161
1162 /* The disklabel the way it is on the disk */
1163 struct next68k_disklabel {
1164 int32_t cd_version; /* label version */
1165 int32_t cd_label_blkno; /* block # of this label */
1166 int32_t cd_size; /* size of media area (sectors) */
1167 char cd_label[NEXT68K_LABEL_CPULBLLEN]; /* disk name (label) */
1168 uint32_t cd_flags; /* flags */
1169 uint32_t cd_tag; /* volume tag */
1170 char cd_name[NEXT68K_LABEL_MAXDNMLEN]; /* drive (hardware) name */
1171 char cd_type[NEXT68K_LABEL_MAXTYPLEN]; /* drive type */
1172 int32_t cd_secsize; /* # of bytes per sector */
1173 int32_t cd_ntracks; /* # of tracks per cylinder */
1174 int32_t cd_nsectors; /* # of data sectors per track */
1175 int32_t cd_ncylinders; /* # of data cylinders per unit */
1176 int32_t cd_rpm; /* rotational speed */
1177 int16_t cd_front; /* # of sectors in "front porch" */
1178 int16_t cd_back; /* # of sectors in "back porch" */
1179 int16_t cd_ngroups; /* # of alt groups */
1180 int16_t cd_ag_size; /* alt group size (sectors) */
1181 int16_t cd_ag_alts; /* alternate sectors / alt group */
1182 int16_t cd_ag_off; /* sector offset to first alternate */
1183 int32_t cd_boot_blkno[2]; /* boot program locations */
1184 char cd_kernel[NEXT68K_LABEL_MAXBFLEN]; /* default kernel name */
1185 char cd_hostname[NEXT68K_LABEL_MAXHNLEN];
1186 /* host name (usu. where disk was labeled) */
1187 char cd_rootpartition; /* root partition letter e.g. 'a' */
1188 char cd_rwpartition; /* r/w partition letter e.g. 'b' */
1189 struct next68k_partition cd_partitions[NEXT68K_LABEL_MAXPARTITIONS];
1190
1191 union {
1192 uint16_t CD_v3_checksum; /* label version 3 checksum */
1193 int32_t CD_bad[NEXT68K_LABEL_NBAD];
1194 /* block number that is bad */
1195 } cd_un;
1196 uint16_t cd_checksum; /* label version 1 or 2 checksum */
1197 } __packed;
1198
1199 #define NEXT68K_LABEL_cd_checksum cd_checksum
1200 #define NEXT68K_LABEL_cd_v3_checksum cd_un.CD_v3_checksum
1201 #define NEXT68K_LABEL_cd_bad cd_un.CD_bad
1202
1203 #define NEXT68K_LABEL_SECTOR 0 /* sector containing label */
1204 #define NEXT68K_LABEL_OFFSET 0 /* offset of label in sector */
1205 #define NEXT68K_LABEL_SIZE 8192 /* size of label */
1206 #define NEXT68K_LABEL_CD_V1 0x4e655854 /* version #1: "NeXT" */
1207 #define NEXT68K_LABEL_CD_V2 0x646c5632 /* version #2: "dlV2" */
1208 #define NEXT68K_LABEL_CD_V3 0x646c5633 /* version #3: "dlV3" */
1209 #define NEXT68K_LABEL_DEFAULTFRONTPORCH (160 * 2)
1210 #define NEXT68K_LABEL_DEFAULTBOOT0_1 (32 * 2)
1211 #define NEXT68K_LABEL_DEFAULTBOOT0_2 (96 * 2)
1212
1213 /* ------------------------------------------
1214 * pmax --
1215 * PMAX (DECstation / MIPS) boot block information
1216 */
1217
1218 /*
1219 * If mode is 0, there is just one sequence of blocks and one Dec_BootMap
1220 * is used. If mode is 1, there are multiple sequences of blocks
1221 * and multiple Dec_BootMaps are used, the last with numBlocks = 0.
1222 */
1223 struct pmax_boot_map {
1224 int32_t num_blocks; /* Number of blocks to read. */
1225 int32_t start_block; /* Starting block on disk. */
1226 };
1227
1228 /*
1229 * This is the structure of a disk or tape boot block. The boot_map
1230 * can either be a single boot count and start block (contiguous mode)
1231 * or a list of up to 61 (to fill a 512 byte sector) block count and
1232 * start block pairs. Under NetBSD, contiguous mode is always used.
1233 */
1234 struct pmax_boot_block {
1235 uint8_t pad[8];
1236 int32_t magic; /* PMAX_BOOT_MAGIC */
1237 int32_t mode; /* Mode for boot info. */
1238 uint32_t load_addr; /* Address to start loading. */
1239 uint32_t exec_addr; /* Address to start execing. */
1240 struct pmax_boot_map map[61]; /* boot program section(s). */
1241 } __packed;
1242
1243 #define PMAX_BOOT_MAGIC 0x0002757a
1244 #define PMAX_BOOTMODE_CONTIGUOUS 0
1245 #define PMAX_BOOTMODE_SCATTERED 1
1246
1247 #define PMAX_BOOT_BLOCK_OFFSET 0
1248 #define PMAX_BOOT_BLOCK_BLOCKSIZE 512
1249
1250
1251 /* ------------------------------------------
1252 * sgimips
1253 */
1254
1255 /*
1256 * Some IRIX man pages refer to the size being a multiple of whole cylinders.
1257 * Later ones only refer to the size being "typically" 2MB. IRIX fx(1)
1258 * uses a default drive geometry if one can't be determined, suggesting
1259 * that "whole cylinder" multiples are not required.
1260 */
1261
1262 #define SGI_BOOT_BLOCK_SIZE_VOLHDR 3135
1263 #define SGI_BOOT_BLOCK_MAGIC 0xbe5a941
1264 #define SGI_BOOT_BLOCK_MAXPARTITIONS 16
1265 #define SGI_BOOT_BLOCK_MAXVOLDIRS 15
1266 #define SGI_BOOT_BLOCK_BLOCKSIZE 512
1267
1268 /*
1269 * SGI partition conventions:
1270 *
1271 * Partition 0 - root
1272 * Partition 1 - swap
1273 * Partition 6 - usr
1274 * Partition 7 - volume body
1275 * Partition 8 - volume header
1276 * Partition 10 - whole disk
1277 */
1278
1279 struct sgi_boot_devparms {
1280 uint8_t dp_skew;
1281 uint8_t dp_gap1;
1282 uint8_t dp_gap2;
1283 uint8_t dp_spares_cyl;
1284 uint16_t dp_cyls;
1285 uint16_t dp_shd0;
1286 uint16_t dp_trks0;
1287 uint8_t dp_ctq_depth;
1288 uint8_t dp_cylshi;
1289 uint16_t dp_unused;
1290 uint16_t dp_secs;
1291 uint16_t dp_secbytes;
1292 uint16_t dp_interleave;
1293 uint32_t dp_flags;
1294 uint32_t dp_datarate;
1295 uint32_t dp_nretries;
1296 uint32_t dp_mspw;
1297 uint16_t dp_xgap1;
1298 uint16_t dp_xsync;
1299 uint16_t dp_xrdly;
1300 uint16_t dp_xgap2;
1301 uint16_t dp_xrgate;
1302 uint16_t dp_xwcont;
1303 } __packed;
1304
1305 struct sgi_boot_block {
1306 uint32_t magic;
1307 int16_t root;
1308 int16_t swap;
1309 char bootfile[16];
1310 struct sgi_boot_devparms dp;
1311 struct {
1312 char name[8];
1313 int32_t block;
1314 int32_t bytes;
1315 } voldir[SGI_BOOT_BLOCK_MAXVOLDIRS];
1316 struct {
1317 int32_t blocks;
1318 int32_t first;
1319 int32_t type;
1320 } partitions[SGI_BOOT_BLOCK_MAXPARTITIONS];
1321 int32_t checksum;
1322 int32_t _pad;
1323 } __packed;
1324
1325 #define SGI_PTYPE_VOLHDR 0
1326 #define SGI_PTYPE_TRKREPL 1
1327 #define SGI_PTYPE_SECREPL 2
1328 #define SGI_PTYPE_RAW 3
1329 #define SGI_PTYPE_BSD 4
1330 #define SGI_PTYPE_SYSV 5
1331 #define SGI_PTYPE_VOLUME 6
1332 #define SGI_PTYPE_EFS 7
1333 #define SGI_PTYPE_LVOL 8
1334 #define SGI_PTYPE_RLVOL 9
1335 #define SGI_PTYPE_XFS 10
1336 #define SGI_PTYPE_XFSLOG 11
1337 #define SGI_PTYPE_XLV 12
1338 #define SGI_PTYPE_XVM 13
1339
1340 /* ------------------------------------------
1341 * sparc
1342 */
1343
1344 #define SPARC_BOOT_BLOCK_OFFSET 512
1345 #define SPARC_BOOT_BLOCK_BLOCKSIZE 512
1346 #define SPARC_BOOT_BLOCK_MAX_SIZE (512 * 15)
1347 /* Magic string -- 32 bytes long (including the NUL) */
1348 #define SPARC_BBINFO_MAGIC "NetBSD/sparc bootxx 20020515"
1349
1350
1351 /* ------------------------------------------
1352 * sparc64
1353 */
1354
1355 #define SPARC64_BOOT_BLOCK_OFFSET 512
1356 #define SPARC64_BOOT_BLOCK_BLOCKSIZE 512
1357 #define SPARC64_BOOT_BLOCK_MAX_SIZE (512 * 15)
1358
1359
1360 /* ------------------------------------------
1361 * sun68k (sun2, sun3)
1362 */
1363
1364 #define SUN68K_BOOT_BLOCK_OFFSET 512
1365 #define SUN68K_BOOT_BLOCK_BLOCKSIZE 512
1366 #define SUN68K_BOOT_BLOCK_MAX_SIZE (512 * 15)
1367 /* Magic string -- 32 bytes long (including the NUL) */
1368 #define SUN68K_BBINFO_MAGIC "NetBSD/sun68k bootxx 20020515"
1369
1370
1371 /* ------------------------------------------
1372 * vax --
1373 * VAX boot block information
1374 */
1375
1376 struct vax_boot_block {
1377 /* Note that these don't overlap any of the pmax boot block */
1378 uint8_t pad0[2];
1379 uint8_t bb_id_offset; /* offset in words to id (magic1)*/
1380 uint8_t bb_mbone; /* must be one */
1381 uint16_t bb_lbn_hi; /* lbn (hi word) of bootstrap */
1382 uint16_t bb_lbn_low; /* lbn (low word) of bootstrap */
1383 uint8_t pad1[332];
1384
1385 /* The rest of these fields are identification area and describe
1386 * the secondary block for uVAX VMB.
1387 */
1388 uint8_t bb_magic1; /* magic number */
1389 uint8_t bb_mbz1; /* must be zero */
1390 uint8_t bb_pad1; /* any value */
1391 uint8_t bb_sum1; /* ~(magic1 + mbz1 + pad1) */
1392
1393 uint8_t bb_mbz2; /* must be zero */
1394 uint8_t bb_volinfo; /* volinfo */
1395 uint8_t bb_pad2a; /* any value */
1396 uint8_t bb_pad2b; /* any value */
1397
1398 uint32_t bb_size; /* size in blocks of bootstrap */
1399 uint32_t bb_load; /* load offset to bootstrap */
1400 uint32_t bb_entry; /* byte offset in bootstrap */
1401 uint32_t bb_sum3; /* sum of previous 3 fields */
1402
1403 /* The rest is unused.
1404 */
1405 uint8_t pad2[148];
1406 } __packed;
1407
1408 #define VAX_BOOT_MAGIC1 0x18 /* size of BB info? */
1409 #define VAX_BOOT_VOLINFO_NONE 0x00 /* no special info */
1410 #define VAX_BOOT_VOLINFO_SS 0x01 /* single sided */
1411 #define VAX_BOOT_VOLINFO_DS 0x81 /* double sided */
1412
1413 #define VAX_BOOT_SIZE 15 /* 15 blocks */
1414 #define VAX_BOOT_LOAD 0 /* no load offset */
1415 #define VAX_BOOT_ENTRY 0x200 /* one block in */
1416
1417 #define VAX_BOOT_BLOCK_OFFSET 0
1418 #define VAX_BOOT_BLOCK_BLOCKSIZE 512
1419
1420
1421 /* ------------------------------------------
1422 * x68k
1423 */
1424
1425 #define X68K_BOOT_BLOCK_OFFSET 0
1426 #define X68K_BOOT_BLOCK_BLOCKSIZE 512
1427 #define X68K_BOOT_BLOCK_MAX_SIZE (512 * 16)
1428 /* Magic string -- 32 bytes long (including the NUL) */
1429 #define X68K_BBINFO_MAGIC "NetBSD/x68k bootxx 20020601"
1430
1431 #endif /* !defined(__ASSEMBLER__) */ /* } */
1432
1433 #endif /* !_SYS_BOOTBLOCK_H */
Cache object: e82e26ec4f5b5ccadce2e1e50018b946
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