usr/src/grub/grub-0.97/stage2/vstafs.h

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2001   Free Software Foundation, Inc.
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19
  20
  21 #ifndef VSTAFS_H
  22 #define VSTAFS_H        1
  23
  24
  25 #define LINE                    16
  26 #define BLOCK_SIZE              512
  27 #define VSTAFS_START_DATA       320
  28
  29 struct bootrecord
  30 {
  31   unsigned char flag;
  32   unsigned char s_sector;
  33   unsigned char s_head;
  34   unsigned char s_cylinder;
  35   unsigned char p_type;
  36   unsigned char e_sector;
  37   unsigned char e_head;
  38   unsigned char e_cylinder;
  39   unsigned long start_lba;
  40   unsigned long nr_sector_lba;
  41 };
  42
  43 struct alloc
  44 {
  45   unsigned long a_start;
  46   unsigned long a_len;
  47 };
  48
  49 struct first_sector
  50 {
  51   unsigned long fs_magic;
  52   unsigned long fs_size;
  53   unsigned long fs_extsize;
  54   unsigned long fs_free;
  55   struct  alloc fs_freesecs[0];
  56 };
  57
  58 struct prot
  59 {
  60   unsigned char len;
  61   unsigned char pdefault;
  62   unsigned char id[7];
  63   unsigned char bits[7];
  64 };
  65
  66 struct fs_file
  67 {
  68   unsigned long prev;
  69   unsigned long rev;
  70   unsigned long len;
  71   unsigned short type;
  72   unsigned short nlink;
  73   struct prot pprot;
  74   unsigned int owner;
  75   unsigned int extents;
  76   struct alloc blocks[32];
  77   long fs_ctime, fs_mtime; /* it is not lon but time_t */
  78   char pad[16];
  79   char data[0];
  80 };
  81
  82 struct dir_entry
  83 {
  84   char name[28];
  85   unsigned long start;
  86 };
  87
  88 #endif /* ! VSTAFS_H */