1 /* 2 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * HISTORY: 30 * 16-Mar-88 John Seamons (jks) at NeXT 31 * Cleaned up to support standard disk label definitions. 32 * 33 * 24-Feb-88 Mike DeMoney (mike) at NeXT 34 * Added d_boot0_blkno to indicate logical block number 35 * of "block 0" boot. This blkno is in d_secsize sectors. 36 * Added d_bootfile to indicate the default operating system 37 * image to be booted by the blk 0 boot. 38 * Changed d_name and d_type to be char arrays rather than ptrs 39 * so they are part of label. This limits length of info in 40 * /etc/disktab, sorry. 41 */ 42 43 #ifndef _SYS_DISKTAB_ 44 #define _SYS_DISKTAB_ 45 46 #include <sys/appleapiopts.h> 47 48 #ifdef __APPLE_API_OBSOLETE 49 50 /* 51 * Disk description table, see disktab(5) 52 */ 53 #ifndef KERNEL 54 #define DISKTAB "/etc/disktab" 55 #endif /* !KERNEL */ 56 57 #define MAXDNMLEN 24 // drive name length 58 #define MAXMPTLEN 16 // mount point length 59 #define MAXFSTLEN 8 // file system type length 60 #define MAXTYPLEN 24 // drive type length 61 #define NBOOTS 2 // # of boot blocks 62 #define MAXBFLEN 24 // bootfile name length 63 #define MAXHNLEN 32 // host name length 64 #define NPART 8 // # of partitions 65 66 typedef struct partition { 67 int p_base; /* base sector# of partition */ 68 int p_size; /* #sectors in partition */ 69 short p_bsize; /* block size in bytes */ 70 short p_fsize; /* frag size in bytes */ 71 char p_opt; /* 's'pace/'t'ime optimization pref */ 72 short p_cpg; /* cylinders per group */ 73 short p_density; /* bytes per inode density */ 74 char p_minfree; /* minfree (%) */ 75 char p_newfs; /* run newfs during init */ 76 char p_mountpt[MAXMPTLEN];/* mount point */ 77 char p_automnt; /* auto-mount when inserted */ 78 char p_type[MAXFSTLEN];/* file system type */ 79 } partition_t; 80 81 typedef struct disktab { 82 char d_name[MAXDNMLEN]; /* drive name */ 83 char d_type[MAXTYPLEN]; /* drive type */ 84 int d_secsize; /* sector size in bytes */ 85 int d_ntracks; /* # tracks/cylinder */ 86 int d_nsectors; /* # sectors/track */ 87 int d_ncylinders; /* # cylinders */ 88 int d_rpm; /* revolutions/minute */ 89 short d_front; /* size of front porch (sectors) */ 90 short d_back; /* size of back porch (sectors) */ 91 short d_ngroups; /* number of alt groups */ 92 short d_ag_size; /* alt group size (sectors) */ 93 short d_ag_alts; /* alternate sectors / alt group */ 94 short d_ag_off; /* sector offset to first alternate */ 95 int d_boot0_blkno[NBOOTS]; /* "blk 0" boot locations */ 96 char d_bootfile[MAXBFLEN]; /* default bootfile */ 97 char d_hostname[MAXHNLEN]; /* host name */ 98 char d_rootpartition; /* root partition e.g. 'a' */ 99 char d_rwpartition; /* r/w partition e.g. 'b' */ 100 partition_t d_partitions[NPART]; 101 } disktab_t; 102 103 #ifndef KERNEL 104 struct disktab *getdiskbyname(), *getdiskbydev(); 105 #endif /* !KERNEL */ 106 107 #endif /* __APPLE_API_OBSOLETE */ 108 109 #endif /* _SYS_DISKTAB_ */ 110