blob: 7d7da3164b290db48d54e9fa667372ae05ffedd9 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
RawStruc.h
Abstract:
This module defines the data structures that make up the major internal
part of the Raw file system.
Author:
David Goebel [DavidGoe] 18-Mar-91
Revision History:
--*/
#ifndef _RAWSTRUC_
#define _RAWSTRUC_
//
// The Vcb (Volume control Block) record corresponds to every volume mounted
// by the file system. This structure must be allocated from non-paged pool.
//
typedef struct _VCB {
//
// The type and size of this record (must be RAW_NTC_VCB)
//
NODE_TYPE_CODE NodeTypeCode;
NODE_BYTE_SIZE NodeByteSize;
//
// A pointer the device object passed in by the I/O system on a mount
// This is the target device object that the file system talks to when it
// needs to do any I/O (e.g., the disk stripper device object).
//
//
PDEVICE_OBJECT TargetDeviceObject;
//
// A pointer to the VPB for the volume passed in by the I/O system on
// a mount.
//
PVPB Vpb;
//
// The internal state of the device.
//
USHORT VcbState;
//
// A mutex to control access to VcbState, OpenCount and ShareAccess
//
KMUTEX Mutex;
//
// A count of the number of file objects that have opened the volume
// and their share access state.
//
CLONG OpenCount;
SHARE_ACCESS ShareAccess;
//
// Information about the disk geometry
//
ULONG BytesPerSector;
LARGE_INTEGER SectorsOnDisk;
} VCB;
typedef VCB *PVCB;
#define VCB_STATE_FLAG_LOCKED (0x0001)
//
// The Volume Device Object is an I/O system device object with a
// VCB record appended to the end. There are multiple of these
// records, one for every mounted volume, and are created during
// a volume mount operation.
//
typedef struct _VOLUME_DEVICE_OBJECT {
DEVICE_OBJECT DeviceObject;
//
// This is the file system specific volume control block.
//
VCB Vcb;
} VOLUME_DEVICE_OBJECT;
typedef VOLUME_DEVICE_OBJECT *PVOLUME_DEVICE_OBJECT;
#endif // _RAWSTRUC_
|
