/* $NetBSD: ahdilabel.h,v 1.4 2009/10/20 19:10:11 snj Exp $ */ /* * Copyright (c) 1995 Leo Weppelman. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _MACHINE_AHDILABEL_H_ #define _MACHINE_AHDILABEL_H_ #define AHDI_BSIZE 512 /* AHDI blocksize */ #define AHDI_BBLOCK 0 /* AHDI bootblock (root sector) */ #define AHDI_MAXROOTS (MAXAUXROOTS) /* max. # of AHDI rootsectors */ #define AHDI_MAXPARTS (AHDI_MAXROOTS+3) /* max. # of AHDI partitions */ /* * Various `well known' AHDI partition identifiers. */ #define AHDI_MKPID(x,y,z) ( ((u_int32_t)(x) << 16) \ | ((u_int32_t)(y) << 8) \ | ((u_int32_t)(z)) \ ) #define AHDI_PID_XGM AHDI_MKPID('X','G','M') #define AHDI_PID_GEM AHDI_MKPID('G','E','M') #define AHDI_PID_BGM AHDI_MKPID('B','G','M') #define AHDI_PID_RAW AHDI_MKPID('R','A','W') #define AHDI_PID_SWP AHDI_MKPID('S','W','P') #define AHDI_PID_NBD AHDI_MKPID('N','B','D') #define AHDI_PID_NBR AHDI_MKPID('N','B','R') #define AHDI_PID_NBS AHDI_MKPID('N','B','S') #define AHDI_PID_NBU AHDI_MKPID('N','B','U') /* * Format of AHDI boot block. */ #define AHDI_MAXRPD 4 /* max. # of partition descriptors */ /* in an AHDI bootblock (aka root) */ #define AHDI_MAXARPD 2 /* max. # of partition descriptors */ /* in an AHDI auxiliary root sector */ struct ahdi_part { u_int8_t ap_flg; /* bit 0 is in-use flag */ u_int8_t ap_id[3]; /* id: GEM, BGM, XGM, UNX, MIX */ u_int32_t ap_st; /* block where partition starts */ u_int32_t ap_size; /* partition size in blocks */ } __attribute__((__packed__)); #define ap_end ap_size /* in the in-core copy, store end instead of size */ struct ahdi_root { u_int8_t ar_fill[0x1c2];/* filler, can be boot code */ u_int32_t ar_hdsize; /* size of entire volume in blocks */ struct ahdi_part ar_parts[AHDI_MAXRPD]; /* root partition table */ u_int32_t ar_bslst; /* start of bad-sector list */ u_int32_t ar_bslsize; /* # of blocks in bad-sector list */ u_int16_t ar_checksum; } __attribute__((__packed__)); /* * AHDI partition table. */ #ifdef _KERNEL struct ahdi_ptbl { struct cpu_disklabel *at_cdl; u_int at_hdsize; /* size of volume in blocks */ u_int at_nroots; /* # of auxiliary root sectors */ u_int at_nparts; /* # of AHDI partitions */ struct ahdi_part at_parts[AHDI_MAXPARTS]; }; #define at_bblock at_cdl->cd_bblock #define at_label at_cdl->cd_label #define at_bslst at_cdl->cd_bslst #define at_bslend at_cdl->cd_bslend #define at_roots at_cdl->cd_roots #endif /* _KERNEL */ #endif /* _MACHINE_AHDILABEL_H_ */
