1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1997-1998,2002 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate 28*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 29*0Sstevel@tonic-gate /* All Rights Reserved */ 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #ifndef _SYS_VTOC_H 33*0Sstevel@tonic-gate #define _SYS_VTOC_H 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate #include <sys/dklabel.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #ifdef __cplusplus 40*0Sstevel@tonic-gate extern "C" { 41*0Sstevel@tonic-gate #endif 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate /* 44*0Sstevel@tonic-gate * Note: the VTOC is not implemented fully, nor in the manner 45*0Sstevel@tonic-gate * that AT&T implements it. AT&T puts the vtoc structure 46*0Sstevel@tonic-gate * into a sector, usually the second sector (pdsector is first). 47*0Sstevel@tonic-gate * 48*0Sstevel@tonic-gate * Sun incorporates the tag, flag, version, and volume vtoc fields into 49*0Sstevel@tonic-gate * its Disk Label, which already has some vtoc-equivalent fields. 50*0Sstevel@tonic-gate * Upon reading the vtoc with read_vtoc(), the following exceptions 51*0Sstevel@tonic-gate * occur: 52*0Sstevel@tonic-gate * v_bootinfo [all] returned as zero 53*0Sstevel@tonic-gate * v_sanity returned as VTOC_SANE 54*0Sstevel@tonic-gate * if Disk Label was sane 55*0Sstevel@tonic-gate * v_sectorsz returned as 512 56*0Sstevel@tonic-gate * v_reserved [all] retunred as zero 57*0Sstevel@tonic-gate * timestamp [all] returned as zero 58*0Sstevel@tonic-gate * 59*0Sstevel@tonic-gate * See dklabel.h, read_vtoc(), and write_vtoc(). 60*0Sstevel@tonic-gate */ 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate #define V_NUMPAR NDKMAP /* The number of partitions */ 63*0Sstevel@tonic-gate /* (from dkio.h) */ 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate #define VTOC_SANE 0x600DDEEE /* Indicates a sane VTOC */ 66*0Sstevel@tonic-gate #define V_VERSION 0x01 /* layout version number */ 67*0Sstevel@tonic-gate 68*0Sstevel@tonic-gate /* 69*0Sstevel@tonic-gate * Partition identification tags 70*0Sstevel@tonic-gate */ 71*0Sstevel@tonic-gate #define V_UNASSIGNED 0x00 /* unassigned partition */ 72*0Sstevel@tonic-gate #define V_BOOT 0x01 /* Boot partition */ 73*0Sstevel@tonic-gate #define V_ROOT 0x02 /* Root filesystem */ 74*0Sstevel@tonic-gate #define V_SWAP 0x03 /* Swap filesystem */ 75*0Sstevel@tonic-gate #define V_USR 0x04 /* Usr filesystem */ 76*0Sstevel@tonic-gate #define V_BACKUP 0x05 /* full disk */ 77*0Sstevel@tonic-gate #define V_STAND 0x06 /* Stand partition */ 78*0Sstevel@tonic-gate #define V_VAR 0x07 /* Var partition */ 79*0Sstevel@tonic-gate #define V_HOME 0x08 /* Home partition */ 80*0Sstevel@tonic-gate #define V_ALTSCTR 0x09 /* Alternate sector partition */ 81*0Sstevel@tonic-gate #define V_CACHE 0x0a /* Cache (cachefs) partition */ 82*0Sstevel@tonic-gate #define V_RESERVED 0x0b /* SMI reserved data */ 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate /* 85*0Sstevel@tonic-gate * Partition permission flags 86*0Sstevel@tonic-gate */ 87*0Sstevel@tonic-gate #define V_UNMNT 0x01 /* Unmountable partition */ 88*0Sstevel@tonic-gate #define V_RONLY 0x10 /* Read only */ 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate /* 91*0Sstevel@tonic-gate * error codes for reading & writing vtoc 92*0Sstevel@tonic-gate */ 93*0Sstevel@tonic-gate #define VT_ERROR (-2) /* errno supplies specific error */ 94*0Sstevel@tonic-gate #define VT_EIO (-3) /* I/O error accessing vtoc */ 95*0Sstevel@tonic-gate #define VT_EINVAL (-4) /* illegal value in vtoc or request */ 96*0Sstevel@tonic-gate #define VT_ENOTSUP (-5) /* VTOC op. not supported */ 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate struct partition { 99*0Sstevel@tonic-gate ushort_t p_tag; /* ID tag of partition */ 100*0Sstevel@tonic-gate ushort_t p_flag; /* permision flags */ 101*0Sstevel@tonic-gate daddr_t p_start; /* start sector no of partition */ 102*0Sstevel@tonic-gate long p_size; /* # of blocks in partition */ 103*0Sstevel@tonic-gate }; 104*0Sstevel@tonic-gate 105*0Sstevel@tonic-gate struct vtoc { 106*0Sstevel@tonic-gate unsigned long v_bootinfo[3]; /* info needed by mboot (unsupported) */ 107*0Sstevel@tonic-gate unsigned long v_sanity; /* to verify vtoc sanity */ 108*0Sstevel@tonic-gate unsigned long v_version; /* layout version */ 109*0Sstevel@tonic-gate char v_volume[LEN_DKL_VVOL]; /* volume name */ 110*0Sstevel@tonic-gate ushort_t v_sectorsz; /* sector size in bytes */ 111*0Sstevel@tonic-gate ushort_t v_nparts; /* number of partitions */ 112*0Sstevel@tonic-gate unsigned long v_reserved[10]; /* free space */ 113*0Sstevel@tonic-gate struct partition v_part[V_NUMPAR]; /* partition headers */ 114*0Sstevel@tonic-gate time_t timestamp[V_NUMPAR]; /* partition timestamp (unsupported) */ 115*0Sstevel@tonic-gate char v_asciilabel[LEN_DKL_ASCII]; /* for compatibility */ 116*0Sstevel@tonic-gate }; 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate #if defined(_SYSCALL32) 119*0Sstevel@tonic-gate struct partition32 { 120*0Sstevel@tonic-gate uint16_t p_tag; /* ID tag of partition */ 121*0Sstevel@tonic-gate uint16_t p_flag; /* permision flags */ 122*0Sstevel@tonic-gate daddr32_t p_start; /* start sector no of partition */ 123*0Sstevel@tonic-gate int32_t p_size; /* # of blocks in partition */ 124*0Sstevel@tonic-gate }; 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate struct vtoc32 { 127*0Sstevel@tonic-gate uint32_t v_bootinfo[3]; /* info needed by mboot (unsupported) */ 128*0Sstevel@tonic-gate uint32_t v_sanity; /* to verify vtoc sanity */ 129*0Sstevel@tonic-gate uint32_t v_version; /* layout version */ 130*0Sstevel@tonic-gate char v_volume[LEN_DKL_VVOL]; /* volume name */ 131*0Sstevel@tonic-gate uint16_t v_sectorsz; /* sector size in bytes */ 132*0Sstevel@tonic-gate uint16_t v_nparts; /* number of partitions */ 133*0Sstevel@tonic-gate uint32_t v_reserved[10]; /* free space */ 134*0Sstevel@tonic-gate struct partition32 v_part[V_NUMPAR]; /* partition headers */ 135*0Sstevel@tonic-gate time32_t timestamp[V_NUMPAR]; /* partition timestamp (unsupported) */ 136*0Sstevel@tonic-gate char v_asciilabel[LEN_DKL_ASCII]; /* for compatibility */ 137*0Sstevel@tonic-gate }; 138*0Sstevel@tonic-gate 139*0Sstevel@tonic-gate #define vtoc32tovtoc(v32, v) \ 140*0Sstevel@tonic-gate { \ 141*0Sstevel@tonic-gate int i; \ 142*0Sstevel@tonic-gate v.v_bootinfo[0] = v32.v_bootinfo[0]; \ 143*0Sstevel@tonic-gate v.v_bootinfo[1] = v32.v_bootinfo[1]; \ 144*0Sstevel@tonic-gate v.v_bootinfo[2] = v32.v_bootinfo[2]; \ 145*0Sstevel@tonic-gate v.v_sanity = v32.v_sanity; \ 146*0Sstevel@tonic-gate v.v_version = v32.v_version; \ 147*0Sstevel@tonic-gate bcopy(v32.v_volume, v.v_volume, LEN_DKL_VVOL); \ 148*0Sstevel@tonic-gate v.v_sectorsz = v32.v_sectorsz; \ 149*0Sstevel@tonic-gate v.v_nparts = v32.v_nparts; \ 150*0Sstevel@tonic-gate v.v_version = v32.v_version; \ 151*0Sstevel@tonic-gate for (i = 0; i < 10; i++) \ 152*0Sstevel@tonic-gate v.v_reserved[i] = v32.v_reserved[i]; \ 153*0Sstevel@tonic-gate for (i = 0; i < V_NUMPAR; i++) { \ 154*0Sstevel@tonic-gate v.v_part[i].p_tag = (ushort_t)v32.v_part[i].p_tag; \ 155*0Sstevel@tonic-gate v.v_part[i].p_flag = (ushort_t)v32.v_part[i].p_flag; \ 156*0Sstevel@tonic-gate v.v_part[i].p_start = (daddr_t)v32.v_part[i].p_start; \ 157*0Sstevel@tonic-gate v.v_part[i].p_size = (long)v32.v_part[i].p_size; \ 158*0Sstevel@tonic-gate } \ 159*0Sstevel@tonic-gate for (i = 0; i < V_NUMPAR; i++) \ 160*0Sstevel@tonic-gate v.timestamp[i] = (time_t)v32.timestamp[i]; \ 161*0Sstevel@tonic-gate bcopy(v32.v_asciilabel, v.v_asciilabel, LEN_DKL_ASCII); \ 162*0Sstevel@tonic-gate } 163*0Sstevel@tonic-gate 164*0Sstevel@tonic-gate #define vtoctovtoc32(v, v32) \ 165*0Sstevel@tonic-gate { \ 166*0Sstevel@tonic-gate int i; \ 167*0Sstevel@tonic-gate v32.v_bootinfo[0] = v.v_bootinfo[0]; \ 168*0Sstevel@tonic-gate v32.v_bootinfo[1] = v.v_bootinfo[1]; \ 169*0Sstevel@tonic-gate v32.v_bootinfo[2] = v.v_bootinfo[2]; \ 170*0Sstevel@tonic-gate v32.v_sanity = v.v_sanity; \ 171*0Sstevel@tonic-gate v32.v_version = v.v_version; \ 172*0Sstevel@tonic-gate bcopy(v.v_volume, v32.v_volume, LEN_DKL_VVOL); \ 173*0Sstevel@tonic-gate v32.v_sectorsz = v.v_sectorsz; \ 174*0Sstevel@tonic-gate v32.v_nparts = v.v_nparts; \ 175*0Sstevel@tonic-gate v32.v_version = v.v_version; \ 176*0Sstevel@tonic-gate for (i = 0; i < 10; i++) \ 177*0Sstevel@tonic-gate v32.v_reserved[i] = v.v_reserved[i]; \ 178*0Sstevel@tonic-gate for (i = 0; i < V_NUMPAR; i++) { \ 179*0Sstevel@tonic-gate v32.v_part[i].p_tag = (ushort_t)v.v_part[i].p_tag; \ 180*0Sstevel@tonic-gate v32.v_part[i].p_flag = (ushort_t)v.v_part[i].p_flag; \ 181*0Sstevel@tonic-gate v32.v_part[i].p_start = (daddr32_t)v.v_part[i].p_start; \ 182*0Sstevel@tonic-gate v32.v_part[i].p_size = (int32_t)v.v_part[i].p_size; \ 183*0Sstevel@tonic-gate } \ 184*0Sstevel@tonic-gate for (i = 0; i < V_NUMPAR; i++) { \ 185*0Sstevel@tonic-gate if (v.timestamp[i] > TIME32_MAX) \ 186*0Sstevel@tonic-gate v32.timestamp[i] = TIME32_MAX; \ 187*0Sstevel@tonic-gate else \ 188*0Sstevel@tonic-gate v32.timestamp[i] = (time32_t)v.timestamp[i]; \ 189*0Sstevel@tonic-gate } \ 190*0Sstevel@tonic-gate bcopy(v.v_asciilabel, v32.v_asciilabel, LEN_DKL_ASCII); \ 191*0Sstevel@tonic-gate } 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate #endif /* _SYSCALL32 */ 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate /* 196*0Sstevel@tonic-gate * These defines are the mode parameter for the checksum routines. 197*0Sstevel@tonic-gate */ 198*0Sstevel@tonic-gate #define CK_CHECKSUM 0 /* check checksum */ 199*0Sstevel@tonic-gate #define CK_MAKESUM 1 /* generate checksum */ 200*0Sstevel@tonic-gate 201*0Sstevel@tonic-gate #if defined(__STDC__) 202*0Sstevel@tonic-gate 203*0Sstevel@tonic-gate extern int read_vtoc(int, struct vtoc *); 204*0Sstevel@tonic-gate extern int write_vtoc(int, struct vtoc *); 205*0Sstevel@tonic-gate 206*0Sstevel@tonic-gate #else 207*0Sstevel@tonic-gate 208*0Sstevel@tonic-gate extern int read_vtoc(); 209*0Sstevel@tonic-gate extern int write_vtoc(); 210*0Sstevel@tonic-gate 211*0Sstevel@tonic-gate #endif /* __STDC__ */ 212*0Sstevel@tonic-gate 213*0Sstevel@tonic-gate #ifdef __cplusplus 214*0Sstevel@tonic-gate } 215*0Sstevel@tonic-gate #endif 216*0Sstevel@tonic-gate 217*0Sstevel@tonic-gate #endif /* _SYS_VTOC_H */ 218