1/* 2 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * The contents of this file constitute Original Code as defined in and 7 * are subject to the Apple Public Source License Version 1.1 (the 8 * "License"). You may not use this file except in compliance with the 9 * License. Please obtain a copy of the License at 10 * http://www.apple.com/publicsource and read it before using this file. 11 * 12 * This Original Code and all software distributed under the License are 13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER 14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the 17 * License for the specific language governing rights and limitations 18 * under the License. 19 * 20 * @APPLE_LICENSE_HEADER_END@ 21 */ 22/* 23 * HISTORY: 24 * 16-Mar-88 John Seamons (jks) at NeXT 25 * Cleaned up to support standard disk label definitions. 26 * 27 * 24-Feb-88 Mike DeMoney (mike) at NeXT 28 * Added d_boot0_blkno to indicate logical block number 29 * of "block 0" boot. This blkno is in d_secsize sectors. 30 * Added d_bootfile to indicate the default operating system 31 * image to be booted by the blk 0 boot. 32 * Changed d_name and d_type to be char arrays rather than ptrs 33 * so they are part of label. This limits length of info in 34 * /etc/disktab, sorry. 35 */ 36 37#ifndef _SYS_DISKTAB_ 38#define _SYS_DISKTAB_ 39 40#include <sys/appleapiopts.h> 41 42#ifdef __APPLE_API_OBSOLETE 43 44/* 45 * Disk description table, see disktab(5) 46 */ 47#ifndef KERNEL 48#define DISKTAB "/etc/disktab" 49#endif /* !KERNEL */ 50 51#define MAXDNMLEN 24 // drive name length 52#define MAXMPTLEN 16 // mount point length 53#define MAXFSTLEN 8 // file system type length 54#define MAXTYPLEN 24 // drive type length 55#define NBOOTS 2 // # of boot blocks 56#define MAXBFLEN 24 // bootfile name length 57#define MAXHNLEN 32 // host name length 58#define NPART 8 // # of partitions 59 60typedef struct partition { 61 int p_base; /* base sector# of partition */ 62 int p_size; /* #sectors in partition */ 63 short p_bsize; /* block size in bytes */ 64 short p_fsize; /* frag size in bytes */ 65 char p_opt; /* 's'pace/'t'ime optimization pref */ 66 short p_cpg; /* cylinders per group */ 67 short p_density; /* bytes per inode density */ 68 char p_minfree; /* minfree (%) */ 69 char p_newfs; /* run newfs during init */ 70 char p_mountpt[MAXMPTLEN];/* mount point */ 71 char p_automnt; /* auto-mount when inserted */ 72 char p_type[MAXFSTLEN];/* file system type */ 73} partition_t; 74 75typedef struct disktab { 76 char d_name[MAXDNMLEN]; /* drive name */ 77 char d_type[MAXTYPLEN]; /* drive type */ 78 int d_secsize; /* sector size in bytes */ 79 int d_ntracks; /* # tracks/cylinder */ 80 int d_nsectors; /* # sectors/track */ 81 int d_ncylinders; /* # cylinders */ 82 int d_rpm; /* revolutions/minute */ 83 short d_front; /* size of front porch (sectors) */ 84 short d_back; /* size of back porch (sectors) */ 85 short d_ngroups; /* number of alt groups */ 86 short d_ag_size; /* alt group size (sectors) */ 87 short d_ag_alts; /* alternate sectors / alt group */ 88 short d_ag_off; /* sector offset to first alternate */ 89 int d_boot0_blkno[NBOOTS]; /* "blk 0" boot locations */ 90 char d_bootfile[MAXBFLEN]; /* default bootfile */ 91 char d_hostname[MAXHNLEN]; /* host name */ 92 char d_rootpartition; /* root partition e.g. 'a' */ 93 char d_rwpartition; /* r/w partition e.g. 'b' */ 94 partition_t d_partitions[NPART]; 95} disktab_t; 96 97#ifndef KERNEL 98struct disktab *getdiskbyname(), *getdiskbydev(); 99#endif /* !KERNEL */ 100 101#endif /* __APPLE_API_OBSOLETE */ 102 103#endif /* _SYS_DISKTAB_ */ 104