usr.sbin/makefs/cd9660/cd9660_eltorito.h

   1 /*      $NetBSD: cd9660_eltorito.h,v 1.5 2009/07/04 14:31:38 ahoka Exp $        */
   2
   3 /*
   4  * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
   5  * Perez-Rathke and Ram Vedam.  All rights reserved.
   6  *
   7  * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
   8  * Alan Perez-Rathke and Ram Vedam.
   9  *
  10  * Redistribution and use in source and binary forms, with or
  11  * without modification, are permitted provided that the following
  12  * conditions are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above
  16  *    copyright notice, this list of conditions and the following
  17  *    disclaimer in the documentation and/or other materials provided
  18  *    with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN
  21  * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  24  * DISCLAIMED.  IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN
  25  * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  28  * USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  29  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  32  * OF SUCH DAMAGE.
  33  */
  34
  35 #ifndef _CD9660_ELTORITO_H_
  36 #define _CD9660_ELTORITO_H_
  37
  38 /* Boot defines */
  39 #define ET_ID           "EL TORITO SPECIFICATION"
  40 #define ET_SYS_X86      0
  41 #define ET_SYS_PPC      1
  42 #define ET_SYS_MAC      2
  43
  44 #define ET_BOOT_ENTRY_SIZE 0x20
  45
  46 #define ET_BOOTABLE             0x88
  47 #define ET_NOT_BOOTABLE 0
  48
  49 #define ET_MEDIA_NOEM   0
  50 #define ET_MEDIA_12FDD                  1
  51 #define ET_MEDIA_144FDD                 2
  52 #define ET_MEDIA_288FDD                 3
  53 #define ET_MEDIA_HDD                    4
  54
  55 #define ET_INDICATOR_HEADERMORE 0x90
  56 #define ET_INDICATOR_HEADERLAST 0x91
  57 #define ET_INDICATOR_EXTENSION  0x44
  58
  59 /*** Boot Structures ***/
  60
  61 typedef struct _boot_volume_descriptor {
  62         u_char boot_record_indicator    [ISODCL(0x00,0x00)];
  63         u_char identifier               [ISODCL(0x01,0x05)];
  64         u_char version                  [ISODCL(0x06,0x06)];
  65         u_char boot_system_identifier   [ISODCL(0x07,0x26)];
  66         u_char unused1                  [ISODCL(0x27,0x46)];
  67         u_char boot_catalog_pointer     [ISODCL(0x47,0x4A)];
  68         u_char unused2                  [ISODCL(0x4B,0x7FF)];
  69 } boot_volume_descriptor;
  70
  71 typedef struct _boot_catalog_validation_entry {
  72         u_char header_id                [ISODCL(0x00,0x00)];
  73         u_char platform_id              [ISODCL(0x01,0x01)];
  74         u_char reserved1                [ISODCL(0x02,0x03)];
  75         u_char manufacturer             [ISODCL(0x04,0x1B)];
  76         u_char checksum                 [ISODCL(0x1C,0x1D)];
  77         u_char key                      [ISODCL(0x1E,0x1F)];
  78 } boot_catalog_validation_entry;
  79
  80 typedef struct _boot_catalog_initial_entry {
  81         u_char boot_indicator           [ISODCL(0x00,0x00)];
  82         u_char media_type               [ISODCL(0x01,0x01)];
  83         u_char load_segment             [ISODCL(0x02,0x03)];
  84         u_char system_type              [ISODCL(0x04,0x04)];
  85         u_char unused_1                 [ISODCL(0x05,0x05)];
  86         u_char sector_count             [ISODCL(0x06,0x07)];
  87         u_char load_rba                 [ISODCL(0x08,0x0B)];
  88         u_char unused_2                 [ISODCL(0x0C,0x1F)];
  89 } boot_catalog_initial_entry;
  90
  91 #define ET_SECTION_HEADER_MORE          0x90
  92 #define ET_SECTION_HEADER_LAST          0x91
  93
  94 typedef struct _boot_catalog_section_header {
  95         u_char header_indicator         [ISODCL(0x00,0x00)];
  96         u_char platform_id              [ISODCL(0x01,0x01)];
  97         u_char num_section_entries      [ISODCL(0x02,0x03)];
  98         u_char id_string                [ISODCL(0x04,0x1F)];
  99 } boot_catalog_section_header;
 100
 101 typedef struct _boot_catalog_section_entry {
 102         u_char boot_indicator           [ISODCL(0x00,0x00)];
 103         u_char media_type               [ISODCL(0x01,0x01)];
 104         u_char load_segment             [ISODCL(0x02,0x03)];
 105         u_char system_type              [ISODCL(0x04,0x04)];
 106         u_char unused_1                 [ISODCL(0x05,0x05)];
 107         u_char sector_count             [ISODCL(0x06,0x07)];
 108         u_char load_rba                 [ISODCL(0x08,0x0B)];
 109         u_char selection_criteria       [ISODCL(0x0C,0x0C)];
 110         u_char vendor_criteria          [ISODCL(0x0D,0x1F)];
 111 } boot_catalog_section_entry;
 112
 113 typedef struct _boot_catalog_section_entry_extension {
 114         u_char extension_indicator      [ISODCL(0x00,0x00)];
 115         u_char flags                    [ISODCL(0x01,0x01)];
 116         u_char vendor_criteria          [ISODCL(0x02,0x1F)];
 117 } boot_catalog_section_entry_extension;
 118
 119 #define ET_ENTRY_VE 1
 120 #define ET_ENTRY_IE 2
 121 #define ET_ENTRY_SH 3
 122 #define ET_ENTRY_SE 4
 123 #define ET_ENTRY_EX 5
 124
 125 struct boot_catalog_entry {
 126         char entry_type;
 127         union {
 128                 boot_catalog_validation_entry           VE;
 129                 boot_catalog_initial_entry              IE;
 130                 boot_catalog_section_header             SH;
 131                 boot_catalog_section_entry              SE;
 132                 boot_catalog_section_entry_extension    EX;
 133         } entry_data;
 134
 135         LIST_ENTRY(boot_catalog_entry) ll_struct;
 136 };
 137
 138 /* Temporary structure */
 139 struct cd9660_boot_image {
 140         char *filename;
 141         int size;
 142         int sector;                     /* copied to LoadRBA */
 143         int num_sectors;
 144         unsigned int loadSegment;
 145         u_char targetMode;
 146         u_char system;
 147         u_char bootable;
 148         /*
 149          * If the boot image exists in the filesystem
 150          * already, this is a pointer to that node. For the sake
 151          * of simplicity in future versions, this pointer is only
 152          * to the node in the primary volume. This SHOULD be done
 153          * via a hashtable lookup.
 154          */
 155         struct _cd9660node *boot_image_node;
 156         TAILQ_ENTRY(cd9660_boot_image) image_list;
 157         int serialno;
 158 };
 159
 160
 161 #endif /* _CD9660_ELTORITO_H_ */
 162