projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 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 | /* | |
| 41 | * Disk description table, see disktab(5) | |
| 42 | */ | |
| 43 | #ifndef KERNEL | |
| 44 | #define DISKTAB "/etc/disktab" | |
| 45 | #endif /* !KERNEL */ | |
| 46 | ||
| 47 | #define MAXDNMLEN 24 // drive name length | |
| 48 | #define MAXMPTLEN 16 // mount point length | |
| 49 | #define MAXFSTLEN 8 // file system type length | |
| 50 | #define MAXTYPLEN 24 // drive type length | |
| 51 | #define NBOOTS 2 // # of boot blocks | |
| 52 | #define MAXBFLEN 24 // bootfile name length | |
| 53 | #define MAXHNLEN 32 // host name length | |
| 54 | #define NPART 8 // # of partitions | |
| 55 | ||
| 56 | typedef struct partition { | |
| 57 | int p_base; /* base sector# of partition */ | |
| 58 | int p_size; /* #sectors in partition */ | |
| 59 | short p_bsize; /* block size in bytes */ | |
| 60 | short p_fsize; /* frag size in bytes */ | |
| 61 | char p_opt; /* 's'pace/'t'ime optimization pref */ | |
| 62 | short p_cpg; /* cylinders per group */ | |
| 63 | short p_density; /* bytes per inode density */ | |
| 64 | char p_minfree; /* minfree (%) */ | |
| 65 | char p_newfs; /* run newfs during init */ | |
| 66 | char p_mountpt[MAXMPTLEN];/* mount point */ | |
| 67 | char p_automnt; /* auto-mount when inserted */ | |
| 68 | char p_type[MAXFSTLEN];/* file system type */ | |
| 69 | } partition_t; | |
| 70 | ||
| 71 | typedef struct disktab { | |
| 72 | char d_name[MAXDNMLEN]; /* drive name */ | |
| 73 | char d_type[MAXTYPLEN]; /* drive type */ | |
| 74 | int d_secsize; /* sector size in bytes */ | |
| 75 | int d_ntracks; /* # tracks/cylinder */ | |
| 76 | int d_nsectors; /* # sectors/track */ | |
| 77 | int d_ncylinders; /* # cylinders */ | |
| 78 | int d_rpm; /* revolutions/minute */ | |
| 79 | short d_front; /* size of front porch (sectors) */ | |
| 80 | short d_back; /* size of back porch (sectors) */ | |
| 81 | short d_ngroups; /* number of alt groups */ | |
| 82 | short d_ag_size; /* alt group size (sectors) */ | |
| 83 | short d_ag_alts; /* alternate sectors / alt group */ | |
| 84 | short d_ag_off; /* sector offset to first alternate */ | |
| 85 | int d_boot0_blkno[NBOOTS]; /* "blk 0" boot locations */ | |
| 86 | char d_bootfile[MAXBFLEN]; /* default bootfile */ | |
| 87 | char d_hostname[MAXHNLEN]; /* host name */ | |
| 88 | char d_rootpartition; /* root partition e.g. 'a' */ | |
| 89 | char d_rwpartition; /* r/w partition e.g. 'b' */ | |
| 90 | partition_t d_partitions[NPART]; | |
| 91 | } disktab_t; | |
| 92 | ||
| 93 | #ifndef KERNEL | |
| 94 | struct disktab *getdiskbyname(), *getdiskbydev(); | |
| 95 | #endif /* !KERNEL */ | |
| 96 | ||
| 97 | #endif /* _SYS_DISKTAB_ */ |