cd9660_eltorito.h revision 1.2
1 /* $NetBSD: cd9660_eltorito.h,v 1.2 2005/10/30 03:10:28 dyoung 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 LIST_ENTRY(cd9660_boot_image) image_list; 157 }; 158 159 160 #endif /* _CD9660_ELTORITO_H_ */ 161 162
Indexes created Tue Oct 28 02:10:10 GMT 2025