ReactOS  0.4.14-dev-49-gfb4591c
disk.h
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1 /*
2  * FreeLoader
3  * Copyright (C) 1998-2003 Brian Palmer <brianp@sginet.com>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 #pragma once
21 
22 #include <reactos/rosioctl.h>
23 
24 typedef struct _GEOMETRY
25 {
26  ULONG Cylinders; // Number of cylinders on the disk
27  ULONG Heads; // Number of heads on the disk
28  ULONG Sectors; // Number of sectors per track
29  ULONG BytesPerSector; // Number of bytes per sector
30 
32 
33 /*
34  * Extended disk geometry (Int13 / ah=48h)
35  */
36 #include <pshpack1.h>
37 typedef struct _EXTENDED_GEOMETRY
38 {
47 
49 
50 /*
51  * Define the structure of a partition table entry
52  */
53 typedef struct _PARTITION_TABLE_ENTRY
54 {
55  UCHAR BootIndicator; // 0x00 - non-bootable partition,
56  // 0x80 - bootable partition (one partition only)
57  UCHAR StartHead; // Beginning head number
58  UCHAR StartSector; // Beginning sector (2 high bits of cylinder #)
59  UCHAR StartCylinder; // Beginning cylinder# (low order bits of cylinder #)
60  UCHAR SystemIndicator; // System indicator
61  UCHAR EndHead; // Ending head number
62  UCHAR EndSector; // Ending sector (2 high bits of cylinder #)
63  UCHAR EndCylinder; // Ending cylinder# (low order bits of cylinder #)
64  ULONG SectorCountBeforePartition; // Number of sectors preceding the partition
65  ULONG PartitionSectorCount; // Number of sectors in the partition
66 
68 
69 /*
70  * Define the structure of the master boot record
71  */
72 typedef struct _MASTER_BOOT_RECORD
73 {
74  UCHAR MasterBootRecordCodeAndData[0x1b8]; /* 0x000 */
75  ULONG Signature; /* 0x1B8 */
76  USHORT Reserved; /* 0x1BC */
79 
81 #include <poppack.h>
82 
83 /*
84  * Partition type defines (of PSDK)
85  */
86 #define PARTITION_ENTRY_UNUSED 0x00 // Entry unused
87 #define PARTITION_FAT_12 0x01 // 12-bit FAT entries
88 #define PARTITION_XENIX_1 0x02 // Xenix
89 #define PARTITION_XENIX_2 0x03 // Xenix
90 #define PARTITION_FAT_16 0x04 // 16-bit FAT entries
91 #define PARTITION_EXTENDED 0x05 // Extended partition entry
92 #define PARTITION_HUGE 0x06 // Huge partition MS-DOS V4
93 #define PARTITION_IFS 0x07 // IFS Partition
94 #define PARTITION_OS2BOOTMGR 0x0A // OS/2 Boot Manager/OPUS/Coherent swap
95 #define PARTITION_FAT32 0x0B // FAT32
96 #define PARTITION_FAT32_XINT13 0x0C // FAT32 using extended int13 services
97 #define PARTITION_XINT13 0x0E // Win95 partition using extended int13 services
98 #define PARTITION_XINT13_EXTENDED 0x0F // Same as type 5 but uses extended int13 services
99 #define PARTITION_NTFS 0x17 // NTFS
100 #define PARTITION_PREP 0x41 // PowerPC Reference Platform (PReP) Boot Partition
101 #define PARTITION_LDM 0x42 // Logical Disk Manager partition
102 #define PARTITION_UNIX 0x63 // Unix
103 #define VALID_NTFT 0xC0 // NTFT uses high order bits
104 #define PARTITION_NTFT 0x80 // NTFT partition
105 #define PARTITION_GPT 0xEE // GPT protective partition
106 #ifdef __REACTOS__
107 #define PARTITION_OLD_LINUX 0x43
108 #define PARTITION_LINUX 0x83
109 #endif
110 
112 //
113 // PC x86/64 BIOS Disk Functions (pcdisk.c)
114 //
116 #if defined(__i386__) || defined(_M_AMD64)
117 VOID __cdecl DiskStopFloppyMotor(VOID);
118 #endif // defined __i386__ || defined(_M_AMD64)
119 
120 /* Buffer for disk reads (hwdisk.c) */
121 extern PVOID DiskReadBuffer;
123 
124 
125 /* ARC path of the boot drive and partition */
127 
128 
130 //
131 // Fixed Disk Partition Management Functions
132 //
134 
135 VOID
137  IN UCHAR DriveNumber);
138 
139 BOOLEAN
141  IN UCHAR DriveNumber,
142  OUT PPARTITION_TABLE_ENTRY PartitionTableEntry,
143  OUT PULONG BootPartition);
144 
145 BOOLEAN
147  IN UCHAR DriveNumber,
149  OUT PPARTITION_TABLE_ENTRY PartitionTableEntry);
150 
151 /*
152  * SCSI support (disk/scsiport.c)
153  */
ULONG Signature
Definition: disk.h:75
USHORT Flags
Definition: disk.h:40
#define IN
Definition: typedefs.h:38
USHORT MasterBootRecordMagic
Definition: disk.h:78
struct _MASTER_BOOT_RECORD MASTER_BOOT_RECORD
Definition: disk.h:53
ULONG PartitionSectorCount
Definition: disk.h:65
#define __cdecl
Definition: accygwin.h:79
UCHAR EndCylinder
Definition: disk.h:63
UCHAR StartHead
Definition: disk.h:57
ULONG Cylinders
Definition: disk.h:26
UCHAR SystemIndicator
Definition: disk.h:60
USHORT Reserved
Definition: disk.h:76
_In_ ULONG _In_ ULONG PartitionNumber
Definition: iofuncs.h:2056
ULONG Cylinders
Definition: disk.h:41
ULONG LoadBootDeviceDriver(VOID)
Definition: scsiport.c:1619
UCHAR StartSector
Definition: disk.h:58
UCHAR MasterBootRecordCodeAndData[0x1b8]
Definition: disk.h:74
ULONG SectorsPerTrack
Definition: disk.h:43
VOID DiskDetectPartitionType(IN UCHAR DriveNumber)
Definition: partition.c:314
unsigned char BOOLEAN
UCHAR EndHead
Definition: disk.h:61
ULONG SectorCountBeforePartition
Definition: disk.h:64
PVOID DiskReadBuffer
Definition: hwdisk.c:46
struct _GEOMETRY * PGEOMETRY
ULONG Sectors
Definition: disk.h:28
char CCHAR
Definition: typedefs.h:50
uint64_t ULONGLONG
Definition: typedefs.h:65
CCHAR FrLdrBootPath[MAX_PATH]
Definition: mach.c:34
#define MAX_PATH
Definition: compat.h:26
Definition: parttest.c:75
UCHAR BootIndicator
Definition: disk.h:55
PARTITION_TABLE_ENTRY PartitionTable[4]
Definition: disk.h:77
unsigned char UCHAR
Definition: xmlstorage.h:181
USHORT Size
Definition: disk.h:39
SIZE_T DiskReadBufferSize
Definition: hwdisk.c:47
UCHAR EndSector
Definition: disk.h:62
ULONG_PTR SIZE_T
Definition: typedefs.h:78
ULONG BytesPerSector
Definition: disk.h:29
USHORT BytesPerSector
Definition: disk.h:45
unsigned short USHORT
Definition: pedump.c:61
UCHAR StartCylinder
Definition: disk.h:59
ULONG Heads
Definition: disk.h:42
Definition: disk.h:24
unsigned int * PULONG
Definition: retypes.h:1
struct _EXTENDED_GEOMETRY EXTENDED_GEOMETRY
struct _PARTITION_TABLE_ENTRY * PPARTITION_TABLE_ENTRY
struct _GEOMETRY GEOMETRY
BOOLEAN DiskGetPartitionEntry(IN UCHAR DriveNumber, IN ULONG PartitionNumber, OUT PPARTITION_TABLE_ENTRY PartitionTableEntry)
Definition: partition.c:407
struct _MASTER_BOOT_RECORD * PMASTER_BOOT_RECORD
#define OUT
Definition: typedefs.h:39
ULONG PDPTE
Definition: disk.h:46
unsigned int ULONG
Definition: retypes.h:1
ULONGLONG Sectors
Definition: disk.h:44
BOOLEAN DiskGetBootPartitionEntry(IN UCHAR DriveNumber, OUT PPARTITION_TABLE_ENTRY PartitionTableEntry, OUT PULONG BootPartition)
Definition: partition.c:367
struct _EXTENDED_GEOMETRY * PEXTENDED_GEOMETRY
struct _PARTITION_TABLE_ENTRY PARTITION_TABLE_ENTRY
ULONG Heads
Definition: disk.h:27