1 /* $NetBSD: cd9660_eltorito.h,v 1.5 2009/07/04 14:31:38 ahoka Exp $ */
4 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
5 * Perez-Rathke and Ram Vedam. All rights reserved.
7 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
8 * Alan Perez-Rathke and Ram Vedam.
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
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.
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
37 #ifndef _CD9660_ELTORITO_H_
38 #define _CD9660_ELTORITO_H_
41 #define ET_ID "EL TORITO SPECIFICATION"
46 #define ET_BOOT_ENTRY_SIZE 0x20
48 #define ET_BOOTABLE 0x88
49 #define ET_NOT_BOOTABLE 0
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
57 #define ET_INDICATOR_HEADERMORE 0x90
58 #define ET_INDICATOR_HEADERLAST 0x91
59 #define ET_INDICATOR_EXTENSION 0x44
61 /*** Boot Structures ***/
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;
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;
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;
93 #define ET_SECTION_HEADER_MORE 0x90
94 #define ET_SECTION_HEADER_LAST 0x91
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;
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;
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;
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
127 struct boot_catalog_entry {
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;
137 LIST_ENTRY(boot_catalog_entry) ll_struct;
140 /* Temporary structure */
141 struct cd9660_boot_image {
144 int sector; /* copied to LoadRBA */
146 unsigned int loadSegment;
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.
157 struct _cd9660node *boot_image_node;
158 TAILQ_ENTRY(cd9660_boot_image) image_list;
163 #endif /* _CD9660_ELTORITO_H_ */