1 /* $NetBSD: cd9660_eltorito.h,v 1.6 2017/01/24 11:22:43 nonaka Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan 7 * Perez-Rathke and Ram Vedam. All rights reserved. 8 * 9 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys, 10 * Alan Perez-Rathke and Ram Vedam. 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above 18 * copyright notice, this list of conditions and the following 19 * disclaimer in the documentation and/or other materials provided 20 * with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN 23 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 26 * DISCLAIMED. IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN 27 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 30 * USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 31 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 34 * OF SUCH DAMAGE. 35 */ 36 37 #ifndef _CD9660_ELTORITO_H_ 38 #define _CD9660_ELTORITO_H_ 39 40 /* Boot defines */ 41 #define ET_ID "EL TORITO SPECIFICATION" 42 #define ET_SYS_X86 0 43 #define ET_SYS_PPC 1 44 #define ET_SYS_MAC 2 45 #define ET_SYS_EFI 0xef /* Platform ID at section header entry */ 46 47 #define ET_BOOT_ENTRY_SIZE 0x20 48 49 #define ET_BOOTABLE 0x88 50 #define ET_NOT_BOOTABLE 0 51 52 #define ET_MEDIA_NOEM 0 53 #define ET_MEDIA_12FDD 1 54 #define ET_MEDIA_144FDD 2 55 #define ET_MEDIA_288FDD 3 56 #define ET_MEDIA_HDD 4 57 58 #define ET_INDICATOR_HEADERMORE 0x90 59 #define ET_INDICATOR_HEADERLAST 0x91 60 #define ET_INDICATOR_EXTENSION 0x44 61 62 /*** Boot Structures ***/ 63 64 typedef struct _boot_volume_descriptor { 65 u_char boot_record_indicator [ISODCL(0x00,0x00)]; 66 u_char identifier [ISODCL(0x01,0x05)]; 67 u_char version [ISODCL(0x06,0x06)]; 68 u_char boot_system_identifier [ISODCL(0x07,0x26)]; 69 u_char unused1 [ISODCL(0x27,0x46)]; 70 u_char boot_catalog_pointer [ISODCL(0x47,0x4A)]; 71 u_char unused2 [ISODCL(0x4B,0x7FF)]; 72 } boot_volume_descriptor; 73 74 typedef struct _boot_catalog_validation_entry { 75 u_char header_id [ISODCL(0x00,0x00)]; 76 u_char platform_id [ISODCL(0x01,0x01)]; 77 u_char reserved1 [ISODCL(0x02,0x03)]; 78 u_char manufacturer [ISODCL(0x04,0x1B)]; 79 u_char checksum [ISODCL(0x1C,0x1D)]; 80 u_char key [ISODCL(0x1E,0x1F)]; 81 } boot_catalog_validation_entry; 82 83 typedef struct _boot_catalog_initial_entry { 84 u_char boot_indicator [ISODCL(0x00,0x00)]; 85 u_char media_type [ISODCL(0x01,0x01)]; 86 u_char load_segment [ISODCL(0x02,0x03)]; 87 u_char system_type [ISODCL(0x04,0x04)]; 88 u_char unused_1 [ISODCL(0x05,0x05)]; 89 u_char sector_count [ISODCL(0x06,0x07)]; 90 u_char load_rba [ISODCL(0x08,0x0B)]; 91 u_char unused_2 [ISODCL(0x0C,0x1F)]; 92 } boot_catalog_initial_entry; 93 94 #define ET_SECTION_HEADER_MORE 0x90 95 #define ET_SECTION_HEADER_LAST 0x91 96 97 typedef struct _boot_catalog_section_header { 98 u_char header_indicator [ISODCL(0x00,0x00)]; 99 u_char platform_id [ISODCL(0x01,0x01)]; 100 u_char num_section_entries [ISODCL(0x02,0x03)]; 101 u_char id_string [ISODCL(0x04,0x1F)]; 102 } boot_catalog_section_header; 103 104 typedef struct _boot_catalog_section_entry { 105 u_char boot_indicator [ISODCL(0x00,0x00)]; 106 u_char media_type [ISODCL(0x01,0x01)]; 107 u_char load_segment [ISODCL(0x02,0x03)]; 108 u_char system_type [ISODCL(0x04,0x04)]; 109 u_char unused_1 [ISODCL(0x05,0x05)]; 110 u_char sector_count [ISODCL(0x06,0x07)]; 111 u_char load_rba [ISODCL(0x08,0x0B)]; 112 u_char selection_criteria [ISODCL(0x0C,0x0C)]; 113 u_char vendor_criteria [ISODCL(0x0D,0x1F)]; 114 } boot_catalog_section_entry; 115 116 typedef struct _boot_catalog_section_entry_extension { 117 u_char extension_indicator [ISODCL(0x00,0x00)]; 118 u_char flags [ISODCL(0x01,0x01)]; 119 u_char vendor_criteria [ISODCL(0x02,0x1F)]; 120 } boot_catalog_section_entry_extension; 121 122 #define ET_ENTRY_VE 1 123 #define ET_ENTRY_IE 2 124 #define ET_ENTRY_SH 3 125 #define ET_ENTRY_SE 4 126 #define ET_ENTRY_EX 5 127 128 struct boot_catalog_entry { 129 char entry_type; 130 union { 131 boot_catalog_validation_entry VE; 132 boot_catalog_initial_entry IE; 133 boot_catalog_section_header SH; 134 boot_catalog_section_entry SE; 135 boot_catalog_section_entry_extension EX; 136 } entry_data; 137 138 LIST_ENTRY(boot_catalog_entry) ll_struct; 139 }; 140 141 /* Temporary structure */ 142 struct cd9660_boot_image { 143 char *filename; 144 int size; 145 int sector; /* copied to LoadRBA */ 146 int num_sectors; 147 unsigned int loadSegment; 148 u_char targetMode; 149 u_char system; 150 u_char bootable; 151 u_char platform_id; /* for section header entry */ 152 /* 153 * If the boot image exists in the filesystem 154 * already, this is a pointer to that node. For the sake 155 * of simplicity in future versions, this pointer is only 156 * to the node in the primary volume. This SHOULD be done 157 * via a hashtable lookup. 158 */ 159 struct _cd9660node *boot_image_node; 160 TAILQ_ENTRY(cd9660_boot_image) image_list; 161 int serialno; 162 }; 163 164 165 #endif /* _CD9660_ELTORITO_H_ */ 166 167