1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 #pragma ident "%Z%%M% %I% %E% SMI" 23 24 /* 25 * Copyright (c) 1987 by Sun Microsystems, Inc. 26 */ 27 28 #ifndef _sun_dklabel_h 29 #define _sun_dklabel_h 30 31 /* 32 * Miscellaneous defines 33 */ 34 #define DKL_MAGIC 0xDABE /* magic number */ 35 #define FKL_MAGIC 0xff /* magic number for DOS floppies */ 36 #define NDKMAP 8 /* # of logical partitions */ 37 38 /* 39 * Format of a Sun SMD disk label. 40 * Resides in cylinder 0, head 0, sector 0. 41 * 42 * sizeof (struct dk_label) should be 512 (sector size) 43 */ 44 struct dk_label { 45 char dkl_asciilabel[128]; /* for compatibility */ 46 char dkl_pad[512-(128+NDKMAP*8+14*2)]; 47 unsigned short dkl_rpm; /* rotations per minute */ 48 unsigned short dkl_pcyl; /* # physical cylinders */ 49 unsigned short dkl_apc; /* alternates per cylinder */ 50 unsigned short dkl_obs1; /* obsolete */ 51 unsigned short dkl_obs2; /* obsolete */ 52 unsigned short dkl_intrlv; /* interleave factor */ 53 unsigned short dkl_ncyl; /* # of data cylinders */ 54 unsigned short dkl_acyl; /* # of alternate cylinders */ 55 unsigned short dkl_nhead; /* # of heads in this partition */ 56 unsigned short dkl_nsect; /* # of 512 byte sectors per track */ 57 unsigned short dkl_obs3; /* obsolete */ 58 unsigned short dkl_obs4; /* obsolete */ 59 /* */ 60 struct dk_map { /* logical partitions */ 61 daddr_t dkl_cylno; /* starting cylinder */ 62 daddr_t dkl_nblk; /* number of blocks */ 63 } dkl_map[NDKMAP]; 64 unsigned short dkl_magic; /* identifies this label format */ 65 unsigned short dkl_cksum; /* xor checksum of sector */ 66 }; 67 68 /* 69 * These defines are for historic compatibility with old drivers. 70 */ 71 #define dkl_gap1 dkl_obs1 /* used to be gap1 */ 72 #define dkl_gap2 dkl_obs2 /* used to be gap2 */ 73 #define dkl_bhead dkl_obs3 /* used to be label head offset */ 74 #define dkl_ppart dkl_obs4 /* used to by physical partition */ 75 76 struct fk_label { /* DOS floppy label */ 77 u_char fkl_type; 78 u_char fkl_magich; 79 u_char fkl_magicl; 80 u_char filler; 81 }; 82 83 #endif /*!_sun_dklabel_h*/ 84