master
1/* $NetBSD: disklabel.h,v 1.8 2019/04/03 22:10:49 christos Exp $ */
2
3/*
4 * Copyright (c) 1994 Christopher G. Demetriou
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 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Christopher G. Demetriou.
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32/*-
33 * Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
34 * Michael L. Finch, Bradley A. Grantham, and
35 * Lawrence A. Kesteloot
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the Alice Group.
49 * 4. The names of the Alice Group or any of its members may not be used
50 * to endorse or promote products derived from this software without
51 * specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR
54 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
55 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
56 * IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT,
57 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
58 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 */
65
66#ifndef _MACHINE_DISKLABEL_H_
67#define _MACHINE_DISKLABEL_H_
68
69#define LABELUSESMBR 0 /* no MBR partitionning */
70#define LABELSECTOR 0 /* sector containing label */
71#define LABELOFFSET 64 /* offset of label in sector */
72#define MAXPARTITIONS 8 /* number of partitions */
73#define RAW_PART 2 /* raw partition: xx?c */
74
75/* Just a dummy */
76struct cpu_disklabel {
77 int cd_dummy; /* must have one element. */
78};
79
80/*
81 * Driver Descriptor Map, from Inside Macintosh: Devices, SCSI Manager
82 * pp 12-13. The driver descriptor map always resides on physical block 0.
83 */
84struct drvr_descriptor {
85 u_int32_t descBlock; /* first block of driver */
86 u_int16_t descSize; /* driver size in blocks */
87 u_int16_t descType; /* system type */
88};
89
90/* system types; Apple reserves 0-15 */
91#define DRVR_TYPE_MACINTOSH 1
92
93struct drvr_map {
94#define DRIVER_MAP_MAGIC 0x4552
95 u_int16_t sbSig; /* map signature */
96 u_int16_t sbBlockSize; /* block size of device */
97 u_int32_t sbBlkCount; /* number of blocks on device */
98 u_int16_t sbDevType; /* (used internally by ROM) */
99 u_int16_t sbDevID; /* (used internally by ROM) */
100 u_int32_t sbData; /* (used internally by ROM) */
101 u_int16_t sbDrvrCount; /* number of driver descriptors */
102#define DRVR_MAX_DESCRIPTORS 61
103 struct drvr_descriptor sb_dd[DRVR_MAX_DESCRIPTORS];
104 u_int16_t pad[3];
105} __attribute__ ((packed));
106
107#define ddBlock(N) sb_dd[(N)].descBlock
108#define ddSize(N) sb_dd[(N)].descSize
109#define ddType(N) sb_dd[(N)].descType
110
111/*
112 * Partition map structure from Inside Macintosh: Devices, SCSI Manager
113 * pp. 13-14. The partition map always begins on physical block 1.
114 *
115 * With the exception of block 0, all blocks on the disk must belong to
116 * exactly one partition. The partition map itself belongs to a partition
117 * of type `APPLE_PARTITION_MAP', and is not limited in size by anything
118 * other than available disk space. The partition map is not necessarily
119 * the first partition listed.
120 */
121struct part_map_entry {
122#define PART_ENTRY_MAGIC 0x504d
123 u_int16_t pmSig; /* partition signature */
124 u_int16_t pmSigPad; /* (reserved) */
125 u_int32_t pmMapBlkCnt; /* number of blocks in partition map */
126 u_int32_t pmPyPartStart; /* first physical block of partition */
127 u_int32_t pmPartBlkCnt; /* number of blocks in partition */
128 char pmPartName[32]; /* partition name */
129 char pmPartType[32]; /* partition type */
130 u_int32_t pmLgDataStart; /* first logical block of data area */
131 u_int32_t pmDataCnt; /* number of blocks in data area */
132 u_int32_t pmPartStatus; /* partition status information */
133 u_int32_t pmLgBootStart; /* first logical block of boot code */
134 u_int32_t pmBootSize; /* size of boot code, in bytes */
135 u_int32_t pmBootLoad; /* boot code load address */
136 u_int32_t pmBootLoad2; /* (reserved) */
137 u_int32_t pmBootEntry; /* boot code entry point */
138 u_int32_t pmBootEntry2; /* (reserved) */
139 u_int32_t pmBootCksum; /* boot code checksum */
140 char pmProcessor[16]; /* processor type (e.g. "68020") */
141 u_int8_t pmBootArgs[128]; /* A/UX boot arguments */
142 u_int8_t pad[248]; /* pad to end of block */
143};
144
145#define PART_TYPE_DRIVER "APPLE_DRIVER"
146#define PART_TYPE_DRIVER43 "APPLE_DRIVER43"
147#define PART_TYPE_DRIVERATA "APPLE_DRIVER_ATA"
148#define PART_TYPE_FWB_COMPONENT "FWB DRIVER COMPONENTS"
149#define PART_TYPE_MAC "APPLE_HFS"
150#define PART_TYPE_NETBSD "NETBSD"
151#define PART_TYPE_PARTMAP "APPLE_PARTITION_MAP"
152#define PART_TYPE_SCRATCH "APPLE_SCRATCH"
153#define PART_TYPE_UNIX "APPLE_UNIX_SVR2"
154
155/*
156 * "pmBootArgs" for APPLE_UNIX_SVR2 partition.
157 * NetBSD/mac68k only uses Magic, Cluster, Type, and Flags.
158 */
159struct blockzeroblock {
160 u_int32_t bzbMagic;
161 u_int8_t bzbCluster;
162 u_int8_t bzbType;
163 u_int16_t bzbBadBlockInode;
164 u_int16_t bzbFlags;
165 u_int16_t bzbReserved;
166 u_int32_t bzbCreationTime;
167 u_int32_t bzbMountTime;
168 u_int32_t bzbUMountTime;
169};
170
171#define BZB_MAGIC 0xABADBABE
172#define BZB_TYPEFS 1
173#define BZB_TYPESWAP 3
174#define BZB_ROOTFS 0x8000
175#define BZB_USRFS 0x4000
176
177#define __HAVE_SETDISKLABEL
178
179#endif /* _MACHINE_DISKLABEL_H_ */