cd9660_eltorito.h revision 1.5.32.1
1 /* $NetBSD: cd9660_eltorito.h,v 1.5.32.1 2017/04/21 16:54:17 bouyer 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 #define ET_SYS_EFI 0xef /* Platform ID at section header entry */ 44 45 #define ET_BOOT_ENTRY_SIZE 0x20 46 47 #define ET_BOOTABLE 0x88 48 #define ET_NOT_BOOTABLE 0 49 50 #define ET_MEDIA_NOEM 0 51 #define ET_MEDIA_12FDD 1 52 #define ET_MEDIA_144FDD 2 53 #define ET_MEDIA_288FDD 3 54 #define ET_MEDIA_HDD 4 55 56 #define ET_INDICATOR_HEADERMORE 0x90 57 #define ET_INDICATOR_HEADERLAST 0x91 58 #define ET_INDICATOR_EXTENSION 0x44 59 60 /*** Boot Structures ***/ 61 62 typedef struct _boot_volume_descriptor { 63 u_char boot_record_indicator [ISODCL(0x00,0x00)]; 64 u_char identifier [ISODCL(0x01,0x05)]; 65 u_char version [ISODCL(0x06,0x06)]; 66 u_char boot_system_identifier [ISODCL(0x07,0x26)]; 67 u_char unused1 [ISODCL(0x27,0x46)]; 68 u_char boot_catalog_pointer [ISODCL(0x47,0x4A)]; 69 u_char unused2 [ISODCL(0x4B,0x7FF)]; 70 } boot_volume_descriptor; 71 72 typedef struct _boot_catalog_validation_entry { 73 u_char header_id [ISODCL(0x00,0x00)]; 74 u_char platform_id [ISODCL(0x01,0x01)]; 75 u_char reserved1 [ISODCL(0x02,0x03)]; 76 u_char manufacturer [ISODCL(0x04,0x1B)]; 77 u_char checksum [ISODCL(0x1C,0x1D)]; 78 u_char key [ISODCL(0x1E,0x1F)]; 79 } boot_catalog_validation_entry; 80 81 typedef struct _boot_catalog_initial_entry { 82 u_char boot_indicator [ISODCL(0x00,0x00)]; 83 u_char media_type [ISODCL(0x01,0x01)]; 84 u_char load_segment [ISODCL(0x02,0x03)]; 85 u_char system_type [ISODCL(0x04,0x04)]; 86 u_char unused_1 [ISODCL(0x05,0x05)]; 87 u_char sector_count [ISODCL(0x06,0x07)]; 88 u_char load_rba [ISODCL(0x08,0x0B)]; 89 u_char unused_2 [ISODCL(0x0C,0x1F)]; 90 } boot_catalog_initial_entry; 91 92 #define ET_SECTION_HEADER_MORE 0x90 93 #define ET_SECTION_HEADER_LAST 0x91 94 95 typedef struct _boot_catalog_section_header { 96 u_char header_indicator [ISODCL(0x00,0x00)]; 97 u_char platform_id [ISODCL(0x01,0x01)]; 98 u_char num_section_entries [ISODCL(0x02,0x03)]; 99 u_char id_string [ISODCL(0x04,0x1F)]; 100 } boot_catalog_section_header; 101 102 typedef struct _boot_catalog_section_entry { 103 u_char boot_indicator [ISODCL(0x00,0x00)]; 104 u_char media_type [ISODCL(0x01,0x01)]; 105 u_char load_segment [ISODCL(0x02,0x03)]; 106 u_char system_type [ISODCL(0x04,0x04)]; 107 u_char unused_1 [ISODCL(0x05,0x05)]; 108 u_char sector_count [ISODCL(0x06,0x07)]; 109 u_char load_rba [ISODCL(0x08,0x0B)]; 110 u_char selection_criteria [ISODCL(0x0C,0x0C)]; 111 u_char vendor_criteria [ISODCL(0x0D,0x1F)]; 112 } boot_catalog_section_entry; 113 114 typedef struct _boot_catalog_section_entry_extension { 115 u_char extension_indicator [ISODCL(0x00,0x00)]; 116 u_char flags [ISODCL(0x01,0x01)]; 117 u_char vendor_criteria [ISODCL(0x02,0x1F)]; 118 } boot_catalog_section_entry_extension; 119 120 #define ET_ENTRY_VE 1 121 #define ET_ENTRY_IE 2 122 #define ET_ENTRY_SH 3 123 #define ET_ENTRY_SE 4 124 #define ET_ENTRY_EX 5 125 126 struct boot_catalog_entry { 127 char entry_type; 128 union { 129 boot_catalog_validation_entry VE; 130 boot_catalog_initial_entry IE; 131 boot_catalog_section_header SH; 132 boot_catalog_section_entry SE; 133 boot_catalog_section_entry_extension EX; 134 } entry_data; 135 136 LIST_ENTRY(boot_catalog_entry) ll_struct; 137 }; 138 139 /* Temporary structure */ 140 struct cd9660_boot_image { 141 char *filename; 142 int size; 143 int sector; /* copied to LoadRBA */ 144 int num_sectors; 145 unsigned int loadSegment; 146 u_char targetMode; 147 u_char system; 148 u_char bootable; 149 u_char platform_id; /* for section header entry */ 150 /* 151 * If the boot image exists in the filesystem 152 * already, this is a pointer to that node. For the sake 153 * of simplicity in future versions, this pointer is only 154 * to the node in the primary volume. This SHOULD be done 155 * via a hashtable lookup. 156 */ 157 struct _cd9660node *boot_image_node; 158 TAILQ_ENTRY(cd9660_boot_image) image_list; 159 int serialno; 160 }; 161 162 163 #endif /* _CD9660_ELTORITO_H_ */ 164 165
Indexes created Mon Oct 27 17:09:47 GMT 2025