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a7ed1e2e | 1 | /** @file\r |
2 | ElTorito Partitions Format Definition.\r | |
3 | \r | |
4 | Copyright (c) 2006, Intel Corporation \r | |
5 | All rights reserved. This program and the accompanying materials \r | |
6 | are licensed and made available under the terms and conditions of the BSD License \r | |
7 | which accompanies this distribution. The full text of the license may be found at \r | |
8 | http://opensource.org/licenses/bsd-license.php \r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
12 | \r | |
13 | --*/\r | |
14 | \r | |
15 | #ifndef _ELTORITO_H_\r | |
16 | #define _ELTORITO_H_\r | |
17 | \r | |
18 | //\r | |
19 | // CDROM_VOLUME_DESCRIPTOR.Types\r | |
20 | //\r | |
21 | #define CDVOL_TYPE_STANDARD 0x0\r | |
22 | #define CDVOL_TYPE_CODED 0x1\r | |
23 | #define CDVOL_TYPE_END 0xFF\r | |
24 | \r | |
25 | //\r | |
26 | // CDROM_VOLUME_DESCRIPTOR.Id\r | |
27 | //\r | |
28 | #define CDVOL_ID "CD001"\r | |
29 | \r | |
30 | //\r | |
31 | // CDROM_VOLUME_DESCRIPTOR.SystemId\r | |
32 | //\r | |
33 | #define CDVOL_ELTORITO_ID "EL TORITO SPECIFICATION"\r | |
34 | \r | |
35 | //\r | |
36 | // Indicator types\r | |
37 | //\r | |
38 | #define ELTORITO_ID_CATALOG 0x01\r | |
39 | #define ELTORITO_ID_SECTION_BOOTABLE 0x88\r | |
40 | #define ELTORITO_ID_SECTION_NOT_BOOTABLE 0x00\r | |
41 | #define ELTORITO_ID_SECTION_HEADER 0x90\r | |
42 | #define ELTORITO_ID_SECTION_HEADER_FINAL 0x91\r | |
43 | \r | |
44 | //\r | |
45 | // ELTORITO_CATALOG.Boot.MediaTypes\r | |
46 | //\r | |
47 | #define ELTORITO_NO_EMULATION 0x00\r | |
48 | #define ELTORITO_12_DISKETTE 0x01\r | |
49 | #define ELTORITO_14_DISKETTE 0x02\r | |
50 | #define ELTORITO_28_DISKETTE 0x03\r | |
51 | #define ELTORITO_HARD_DISK 0x04\r | |
52 | \r | |
53 | \r | |
54 | #pragma pack(1)\r | |
55 | \r | |
56 | //\r | |
57 | // El Torito Volume Descriptor\r | |
58 | // Note that the CDROM_VOLUME_DESCRIPTOR does not match the ISO-9660\r | |
59 | // descriptor. For some reason descriptor used by El Torito is\r | |
60 | // different, but they start the same. The El Torito descriptor\r | |
61 | // is left shifted 1 byte starting with the SystemId. (Note this\r | |
62 | // causes the field to get unaligned)\r | |
63 | //\r | |
64 | typedef struct {\r | |
65 | UINT8 Type;\r | |
66 | CHAR8 Id[5]; // CD001\r | |
67 | UINT8 Version;\r | |
68 | CHAR8 SystemId[26];\r | |
69 | CHAR8 Unused[38];\r | |
70 | UINT8 EltCatalog[4];\r | |
71 | CHAR8 Unused2[5];\r | |
72 | UINT32 VolSpaceSize[2];\r | |
73 | } CDROM_VOLUME_DESCRIPTOR;\r | |
74 | \r | |
75 | //\r | |
76 | // Catalog Entry\r | |
77 | //\r | |
78 | typedef union {\r | |
79 | struct {\r | |
80 | CHAR8 Reserved[0x20];\r | |
81 | } Unknown;\r | |
82 | \r | |
83 | //\r | |
84 | // Catalog validation entry (Catalog header)\r | |
85 | //\r | |
86 | struct {\r | |
87 | UINT8 Indicator;\r | |
88 | UINT8 PlatformId;\r | |
89 | UINT16 Reserved;\r | |
90 | CHAR8 ManufacId[24];\r | |
91 | UINT16 Checksum;\r | |
92 | UINT16 Id55AA;\r | |
93 | } Catalog;\r | |
94 | \r | |
95 | //\r | |
96 | // Initial/Default Entry or Section Entry\r | |
97 | //\r | |
98 | struct {\r | |
99 | UINT8 Indicator;\r | |
100 | UINT8 MediaType : 4;\r | |
101 | UINT8 Reserved1 : 4;\r | |
102 | UINT16 LoadSegment;\r | |
103 | UINT8 SystemType;\r | |
104 | UINT8 Reserved2;\r | |
105 | UINT16 SectorCount;\r | |
106 | UINT32 Lba;\r | |
107 | } Boot;\r | |
108 | \r | |
109 | //\r | |
110 | // Section Header Entry\r | |
111 | //\r | |
112 | struct {\r | |
113 | UINT8 Indicator;\r | |
114 | UINT8 PlatformId;\r | |
115 | UINT16 SectionEntries;\r | |
116 | CHAR8 Id[28];\r | |
117 | } Section;\r | |
118 | \r | |
119 | } ELTORITO_CATALOG;\r | |
120 | \r | |
121 | #pragma pack()\r | |
122 | \r | |
123 | #endif\r |