1 /* $OpenBSD: cd9660_eltorito.h,v 1.4 2017/10/31 13:36:23 yasuoka Exp $ */ 2 /* $NetBSD: cd9660_eltorito.h,v 1.5 2009/07/04 14:31:38 ahoka Exp $ */ 3 4 /* 5 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan 6 * Perez-Rathke and Ram Vedam. All rights reserved. 7 * 8 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys, 9 * Alan Perez-Rathke and Ram Vedam. 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer in the documentation and/or other materials provided 19 * with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN 22 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN 26 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 29 * USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 30 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 31 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 33 * OF SUCH DAMAGE. 34 */ 35 36 #ifndef _CD9660_ELTORITO_H_ 37 #define _CD9660_ELTORITO_H_ 38 39 /* Boot defines */ 40 #define ET_ID "EL TORITO SPECIFICATION" 41 #define ET_SYS_X86 0 42 #define ET_SYS_PPC 1 43 #define ET_SYS_MAC 2 44 #define ET_SYS_EFI 0xef 45 46 #define ET_BOOT_ENTRY_SIZE 0x20 47 48 #define ET_BOOTABLE 0x88 49 #define ET_NOT_BOOTABLE 0 50 51 #define ET_MEDIA_NOEM 0 52 #define ET_MEDIA_12FDD 1 53 #define ET_MEDIA_144FDD 2 54 #define ET_MEDIA_288FDD 3 55 #define ET_MEDIA_HDD 4 56 57 #define ET_INDICATOR_HEADERMORE 0x90 58 #define ET_INDICATOR_HEADERLAST 0x91 59 #define ET_INDICATOR_EXTENSION 0x44 60 61 /*** Boot Structures ***/ 62 63 typedef struct _boot_volume_descriptor { 64 u_char boot_record_indicator [ISODCL(0x00,0x00)]; 65 u_char identifier [ISODCL(0x01,0x05)]; 66 u_char version [ISODCL(0x06,0x06)]; 67 u_char boot_system_identifier [ISODCL(0x07,0x26)]; 68 u_char unused1 [ISODCL(0x27,0x46)]; 69 u_char boot_catalog_pointer [ISODCL(0x47,0x4A)]; 70 u_char unused2 [ISODCL(0x4B,0x7FF)]; 71 } boot_volume_descriptor; 72 73 typedef struct _boot_catalog_validation_entry { 74 u_char header_id [ISODCL(0x00,0x00)]; 75 u_char platform_id [ISODCL(0x01,0x01)]; 76 u_char reserved1 [ISODCL(0x02,0x03)]; 77 u_char manufacturer [ISODCL(0x04,0x1B)]; 78 u_char checksum [ISODCL(0x1C,0x1D)]; 79 u_char key [ISODCL(0x1E,0x1F)]; 80 } boot_catalog_validation_entry; 81 82 typedef struct _boot_catalog_initial_entry { 83 u_char boot_indicator [ISODCL(0x00,0x00)]; 84 u_char media_type [ISODCL(0x01,0x01)]; 85 u_char load_segment [ISODCL(0x02,0x03)]; 86 u_char system_type [ISODCL(0x04,0x04)]; 87 u_char unused_1 [ISODCL(0x05,0x05)]; 88 u_char sector_count [ISODCL(0x06,0x07)]; 89 u_char load_rba [ISODCL(0x08,0x0B)]; 90 u_char unused_2 [ISODCL(0x0C,0x1F)]; 91 } boot_catalog_initial_entry; 92 93 #define ET_SECTION_HEADER_MORE 0x90 94 #define ET_SECTION_HEADER_LAST 0x91 95 96 typedef struct _boot_catalog_section_header { 97 u_char header_indicator [ISODCL(0x00,0x00)]; 98 u_char platform_id [ISODCL(0x01,0x01)]; 99 u_char num_section_entries [ISODCL(0x02,0x03)]; 100 u_char id_string [ISODCL(0x04,0x1F)]; 101 } boot_catalog_section_header; 102 103 typedef struct _boot_catalog_section_entry { 104 u_char boot_indicator [ISODCL(0x00,0x00)]; 105 u_char media_type [ISODCL(0x01,0x01)]; 106 u_char load_segment [ISODCL(0x02,0x03)]; 107 u_char system_type [ISODCL(0x04,0x04)]; 108 u_char unused_1 [ISODCL(0x05,0x05)]; 109 u_char sector_count [ISODCL(0x06,0x07)]; 110 u_char load_rba [ISODCL(0x08,0x0B)]; 111 u_char selection_criteria [ISODCL(0x0C,0x0C)]; 112 u_char vendor_criteria [ISODCL(0x0D,0x1F)]; 113 } boot_catalog_section_entry; 114 115 typedef struct _boot_catalog_section_entry_extension { 116 u_char extension_indicator [ISODCL(0x00,0x00)]; 117 u_char flags [ISODCL(0x01,0x01)]; 118 u_char vendor_criteria [ISODCL(0x02,0x1F)]; 119 } boot_catalog_section_entry_extension; 120 121 #define ET_ENTRY_VE 1 122 #define ET_ENTRY_IE 2 123 #define ET_ENTRY_SH 3 124 #define ET_ENTRY_SE 4 125 #define ET_ENTRY_EX 5 126 127 struct boot_catalog_entry { 128 char entry_type; 129 union { 130 boot_catalog_validation_entry VE; 131 boot_catalog_initial_entry IE; 132 boot_catalog_section_header SH; 133 boot_catalog_section_entry SE; 134 boot_catalog_section_entry_extension EX; 135 } entry_data; 136 137 LIST_ENTRY(boot_catalog_entry) ll_struct; 138 }; 139 140 /* Temporary structure */ 141 struct cd9660_boot_image { 142 char *filename; 143 int size; 144 int sector; /* copied to LoadRBA */ 145 int num_sectors; 146 unsigned int loadSegment; 147 u_char targetMode; 148 u_char system; 149 u_char bootable; 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