1/* $NetBSD: cd9660_eltorito.h,v 1.6 2017/01/24 11:22:43 nonaka 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
62typedef 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
72typedef 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
81typedef 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
95typedef 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
102typedef 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
114typedef 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
126struct 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 */
140struct 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
