disklabel.h revision 1.3
1 /* $NetBSD: disklabel.h,v 1.3 1998/02/27 09:15:21 scottr 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 LABELSECTOR 0 /* sector containing label */ 70 #define LABELOFFSET 64 /* offset of label in sector */ 71 #define MAXPARTITIONS 8 /* number of partitions */ 72 #define RAW_PART 2 /* raw partition: xx?c */ 73 74 /* Just a dummy */ 75 struct cpu_disklabel { 76 int cd_dummy; /* must have one element. */ 77 }; 78 79 /* 80 * Driver Descriptor Map, from Inside Macintosh: Devices, SCSI Manager 81 * pp 12-13. The driver descriptor map always resides on physical block 0. 82 */ 83 struct drvr_descriptor { 84 u_int32_t descBlock; /* first block of driver */ 85 u_int16_t descSize; /* driver size in blocks */ 86 u_int16_t descType; /* system type */ 87 }; 88 89 /* system types; Apple reserves 0-15 */ 90 #define DRVR_TYPE_MACINTOSH 1 91 92 struct drvr_map { 93 u_int16_t sbSig; /* map signature */ 94 u_int16_t sbBlockSize; /* block size of device */ 95 u_int32_t sbBlkCount; /* number of blocks on device */ 96 u_int16_t sbDevType; /* (used internally by ROM) */ 97 u_int16_t sbDevID; /* (used internally by ROM) */ 98 u_int32_t sbData; /* (used internally by ROM) */ 99 u_int16_t sbDrvrCount; /* number of driver descriptors */ 100 #define DRVR_MAX_DESCRIPTORS 61 101 struct drvr_descriptor sb_dd[DRVR_MAX_DESCRIPTORS]; 102 u_int16_t pad[3]; 103 } __attribute__ ((packed)); 104 105 #define ddBlock(N) sb_dd[(N)].descBlock 106 #define ddSize(N) sb_dd[(N)].descSize 107 #define ddType(N) sb_dd[(N)].descType 108 109 /* 110 * Partition map structure from Inside Macintosh: Devices, SCSI Manager 111 * pp. 13-14. The partition map always begins on physical block 1. 112 * 113 * With the exception of block 0, all blocks on the disk must belong to 114 * exactly one partition. The partition map itself belongs to a partition 115 * of type `APPLE_PARTITION_MAP', and is not limited in size by anything 116 * other than available disk space. The partition map is not necessarily 117 * the first partition listed. 118 */ 119 struct part_map_entry { 120 #define PART_ENTRY_MAGIC 0x504d 121 u_int16_t pmSig; /* partition signature */ 122 u_int16_t pmSigPad; /* (reserved) */ 123 u_int32_t pmMapBlkCnt; /* number of blocks in partition map */ 124 u_int32_t pmPyPartStart; /* first physical block of partition */ 125 u_int32_t pmPartBlkCnt; /* number of blocks in partition */ 126 char pmPartName[32]; /* partition name */ 127 char pmPartType[32]; /* partition type */ 128 u_int32_t pmLgDataStart; /* first logical block of data area */ 129 u_int32_t pmDataCnt; /* number of blocks in data area */ 130 u_int32_t pmPartStatus; /* partition status information */ 131 u_int32_t pmLgBootStart; /* first logical block of boot code */ 132 u_int32_t pmBootSize; /* size of boot code, in bytes */ 133 u_int32_t pmBootLoad; /* boot code load address */ 134 u_int32_t pmBootLoad2; /* (reserved) */ 135 u_int32_t pmBootEntry; /* boot code entry point */ 136 u_int32_t pmBootEntry2; /* (reserved) */ 137 u_int32_t pmBootCksum; /* boot code checksum */ 138 char pmProcessor[16]; /* processor type (e.g. "68020") */ 139 u_int8_t pmBootArgs[128]; /* A/UX boot arguments */ 140 u_int8_t pad[248]; /* pad to end of block */ 141 }; 142 143 #define PART_TYPE_DRIVER "APPLE_DRIVER" 144 #define PART_TYPE_DRIVER43 "APPLE_DRIVER43" 145 #define PART_TYPE_DRIVERATA "APPLE_DRIVER_ATA" 146 #define PART_TYPE_FWB_COMPONENT "FWB DRIVER COMPONENTS" 147 #define PART_TYPE_MAC "APPLE_HFS" 148 #define PART_TYPE_NETBSD "NETBSD" 149 #define PART_TYPE_PARTMAP "APPLE_PARTITION_MAP" 150 #define PART_TYPE_SCRATCH "APPLE_SCRATCH" 151 #define PART_TYPE_UNIX "APPLE_UNIX_SVR2" 152 153 /* 154 * "pmBootArgs" for APPLE_UNIX_SVR2 partition. 155 * NetBSD/Mac68k only uses Magic, Cluster, Type, and Flags. 156 */ 157 struct blockzeroblock { 158 u_int32_t bzbMagic; 159 u_int8_t bzbCluster; 160 u_int8_t bzbType; 161 u_int16_t bzbBadBlockInode; 162 u_int16_t bzbFlags; 163 u_int16_t bzbReserved; 164 u_int32_t bzbCreationTime; 165 u_int32_t bzbMountTime; 166 u_int32_t bzbUMountTime; 167 }; 168 169 #define BZB_MAGIC 0xABADBABE 170 #define BZB_TYPEFS 1 171 #define BZB_TYPESWAP 3 172 #define BZB_ROOTFS 0x8000 173 #define BZB_USRFS 0x4000 174 175 #endif /* _MACHINE_DISKLABEL_H_ */ 176
Indexes created Tue Sep 23 23:09:58 GMT 2025