ahdi.h revision 1.1.2.2
1 1.1.2.2 nathanw /* 2 1.1.2.2 nathanw * Copyright (c) 1995 Leo Weppelman. 3 1.1.2.2 nathanw * All rights reserved. 4 1.1.2.2 nathanw * 5 1.1.2.2 nathanw * Redistribution and use in source and binary forms, with or without 6 1.1.2.2 nathanw * modification, are permitted provided that the following conditions 7 1.1.2.2 nathanw * are met: 8 1.1.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 9 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer. 10 1.1.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 11 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 12 1.1.2.2 nathanw * documentation and/or other materials provided with the distribution. 13 1.1.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 14 1.1.2.2 nathanw * must display the following acknowledgement: 15 1.1.2.2 nathanw * This product includes software developed by Leo Weppelman. 16 1.1.2.2 nathanw * 4. The name of the author may not be used to endorse or promote products 17 1.1.2.2 nathanw * derived from this software without specific prior written permission 18 1.1.2.2 nathanw * 19 1.1.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 1.1.2.2 nathanw * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 1.1.2.2 nathanw * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 1.1.2.2 nathanw * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 1.1.2.2 nathanw * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 1.1.2.2 nathanw * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 1.1.2.2 nathanw * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 1.1.2.2 nathanw * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 1.1.2.2 nathanw * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 1.1.2.2 nathanw * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 1.1.2.2 nathanw */ 30 1.1.2.2 nathanw 31 1.1.2.2 nathanw #ifndef AHDI_H 32 1.1.2.2 nathanw #define AHDI_H 33 1.1.2.2 nathanw 34 1.1.2.2 nathanw #define AHDI_BSIZE 512 /* AHDI blocksize */ 35 1.1.2.2 nathanw #define AHDI_BBLOCK 0 /* AHDI bootblock (root sector) */ 36 1.1.2.2 nathanw 37 1.1.2.2 nathanw /* 38 1.1.2.2 nathanw * Various `well known' AHDI partition identifiers. 39 1.1.2.2 nathanw */ 40 1.1.2.2 nathanw #define AHDI_MKPID(x,y,z) ( ((u_int32_t)(x) << 16) \ 41 1.1.2.2 nathanw | ((u_int32_t)(y) << 8) \ 42 1.1.2.2 nathanw | ((u_int32_t)(z)) \ 43 1.1.2.2 nathanw ) 44 1.1.2.2 nathanw #define AHDI_PID_XGM AHDI_MKPID('X','G','M') 45 1.1.2.2 nathanw #define AHDI_PID_GEM AHDI_MKPID('G','E','M') 46 1.1.2.2 nathanw #define AHDI_PID_BGM AHDI_MKPID('B','G','M') 47 1.1.2.2 nathanw #define AHDI_PID_RAW AHDI_MKPID('R','A','W') 48 1.1.2.2 nathanw #define AHDI_PID_SWP AHDI_MKPID('S','W','P') 49 1.1.2.2 nathanw #define AHDI_PID_NBD AHDI_MKPID('N','B','D') 50 1.1.2.2 nathanw #define AHDI_PID_NBR AHDI_MKPID('N','B','R') 51 1.1.2.2 nathanw #define AHDI_PID_NBS AHDI_MKPID('N','B','S') 52 1.1.2.2 nathanw #define AHDI_PID_NBU AHDI_MKPID('N','B','U') 53 1.1.2.2 nathanw 54 1.1.2.2 nathanw /* 55 1.1.2.2 nathanw * Format of AHDI boot block. 56 1.1.2.2 nathanw */ 57 1.1.2.2 nathanw #define AHDI_MAXRPD 4 /* max. # of partition descriptors */ 58 1.1.2.2 nathanw /* in an AHDI bootblock (aka root) */ 59 1.1.2.2 nathanw #define AHDI_MAXARPD 2 /* max. # of partition descriptors */ 60 1.1.2.2 nathanw 61 1.1.2.2 nathanw /* 62 1.1.2.2 nathanw * On-disk representation of the AHDI disklabel. 63 1.1.2.2 nathanw */ 64 1.1.2.2 nathanw struct ahdi_part { 65 1.1.2.2 nathanw u_int8_t ap_flg; /* bit 0 is in-use flag */ 66 1.1.2.2 nathanw u_int8_t ap_id[3]; /* id: GEM, BGM, XGM, UNX, MIX */ 67 1.1.2.2 nathanw u_int32_t ap_st; /* block where partition starts */ 68 1.1.2.2 nathanw u_int32_t ap_size; /* partition size in blocks */ 69 1.1.2.2 nathanw }; 70 1.1.2.2 nathanw 71 1.1.2.2 nathanw struct ahdi_root { 72 1.1.2.2 nathanw u_int8_t ar_fill[0x1c2];/* filler, can be boot code */ 73 1.1.2.2 nathanw u_int32_t ar_hdsize; /* size of entire volume in blocks */ 74 1.1.2.2 nathanw struct ahdi_part ar_parts[AHDI_MAXRPD]; /* root partition table */ 75 1.1.2.2 nathanw u_int32_t ar_bslst; /* start of bad-sector list */ 76 1.1.2.2 nathanw u_int32_t ar_bslsize; /* # of blocks in bad-sector list */ 77 1.1.2.2 nathanw u_int16_t ar_checksum; 78 1.1.2.2 nathanw }; 79 1.1.2.2 nathanw 80 1.1.2.2 nathanw /* 81 1.1.2.2 nathanw * Partition table representation as generated by ahdi_getparts(): 82 1.1.2.2 nathanw */ 83 1.1.2.2 nathanw typedef struct { 84 1.1.2.2 nathanw char id[4]; 85 1.1.2.2 nathanw u_int start; 86 1.1.2.2 nathanw u_int end; 87 1.1.2.2 nathanw u_int rsec; 88 1.1.2.2 nathanw u_int rent; 89 1.1.2.2 nathanw int mod; 90 1.1.2.2 nathanw } part_t; 91 1.1.2.2 nathanw 92 1.1.2.2 nathanw typedef struct { 93 1.1.2.2 nathanw int nparts; 94 1.1.2.2 nathanw part_t *parts; 95 1.1.2.2 nathanw } ptable_t; 96 1.1.2.2 nathanw 97 1.1.2.2 nathanw /* 98 1.1.2.2 nathanw * Functions exported from ahdi.c 99 1.1.2.2 nathanw */ 100 1.1.2.2 nathanw EXTERN u_int ahdi_getparts PROTO((disk_t *, ptable_t *, u_int, u_int)); 101 1.1.2.2 nathanw #endif /* AHDI_H */ 102
Indexes created Fri Oct 03 02:09:57 GMT 2025