1 /* $OpenBSD: disklabel.h,v 1.16 2015/09/30 15:13:54 krw 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 #ifndef _MACHINE_DISKLABEL_H_ 34 #define _MACHINE_DISKLABEL_H_ 35 36 #define LABELSECTOR 1 /* sector containing label */ 37 #define LABELOFFSET 0 /* offset of label in sector */ 38 #define MAXPARTITIONS 16 /* number of partitions */ 39 40 /* HFS/DPME */ 41 42 /* partition map structure from Inside Macintosh: Devices, SCSI Manager 43 * pp. 13-14. The partition map always begins on physical block 1. 44 * 45 * With the exception of block 0, all blocks on the disk must belong to 46 * exactly one partition. The partition map itself belongs to a partition 47 * of type `APPLE_PARTITION_MAP', and is not limited in size by anything 48 * other than available disk space. The partition map is not necessarily 49 * the first partition listed. 50 */ 51 struct part_map_entry { 52 #define PART_ENTRY_MAGIC 0x504d 53 u_int16_t pmSig; /* partition signature */ 54 u_int16_t pmSigPad; /* (reserved) */ 55 u_int32_t pmMapBlkCnt; /* number of blocks in partition map */ 56 u_int32_t pmPyPartStart; /* first physical block of partition */ 57 u_int32_t pmPartBlkCnt; /* number of blocks in partition */ 58 char pmPartName[32]; /* partition name */ 59 char pmPartType[32]; /* partition type */ 60 u_int32_t pmLgDataStart; /* first logical block of data area */ 61 u_int32_t pmDataCnt; /* number of blocks in data area */ 62 u_int32_t pmPartStatus; /* partition status information */ 63 u_int32_t pmLgBootStart; /* first logical block of boot code */ 64 u_int32_t pmBootSize; /* size of boot code, in bytes */ 65 u_int32_t pmBootLoad; /* boot code load address */ 66 u_int32_t pmBootLoad2; /* (reserved) */ 67 u_int32_t pmBootEntry; /* boot code entry point */ 68 u_int32_t pmBootEntry2; /* (reserved) */ 69 u_int32_t pmBootCksum; /* boot code checksum */ 70 char pmProcessor[16]; /* processor type (e.g. "68020") */ 71 u_int8_t pmBootArgs[128]; /* A/UX boot arguments */ 72 /* we do not index the disk image as an array, 73 * leave out the on disk padding 74 */ 75 #if 0 76 u_int8_t pad[248]; /* pad to end of block */ 77 #endif 78 }; 79 80 #define PART_TYPE_DRIVER "APPLE_DRIVER" 81 #define PART_TYPE_DRIVER43 "APPLE_DRIVER43" 82 #define PART_TYPE_DRIVERATA "APPLE_DRIVER_ATA" 83 #define PART_TYPE_DRIVERIOKIT "APPLE_DRIVER_IOKIT" 84 #define PART_TYPE_FWDRIVER "APPLE_FWDRIVER" 85 #define PART_TYPE_FWB_COMPONENT "FWB DRIVER COMPONENTS" 86 #define PART_TYPE_FREE "APPLE_FREE" 87 #define PART_TYPE_MAC "APPLE_HFS" 88 #define PART_TYPE_OPENBSD "OPENBSD" 89 90 #endif /* _MACHINE_DISKLABEL_H_ */ 91