3 * Copyright (C) 2002, 2003 ReactOS Team
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.
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.
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.
20 * COPYRIGHT: See COPYING in the top level directory
21 * PROJECT: ReactOS kernel
22 * FILE: drivers/fs/cdfs/cdfs.c
23 * PURPOSE: CDROM (ISO 9660) filesystem driver
24 * PROGRAMMER: Art Yerkes
28 /* INCLUDES *****************************************************************/
35 /* GLOBALS ******************************************************************/
37 PCDFS_GLOBAL_DATA CdfsGlobalData
;
40 /* FUNCTIONS ****************************************************************/
43 DriverEntry(PDRIVER_OBJECT DriverObject
,
44 PUNICODE_STRING RegistryPath
)
46 * FUNCTION: Called by the system to initialize the driver
48 * DriverObject = object describing this driver
49 * RegistryPath = path to our configuration entries
50 * RETURNS: Success or failure
53 PDEVICE_OBJECT DeviceObject
;
55 UNICODE_STRING DeviceName
= RTL_CONSTANT_STRING(L
"\\Cdfs");
57 UNREFERENCED_PARAMETER(RegistryPath
);
59 DPRINT("CDFS 0.0.3\n");
61 Status
= IoCreateDevice(DriverObject
,
62 sizeof(CDFS_GLOBAL_DATA
),
64 FILE_DEVICE_CD_ROM_FILE_SYSTEM
,
68 if (!NT_SUCCESS(Status
))
73 /* Initialize global data */
74 CdfsGlobalData
= DeviceObject
->DeviceExtension
;
75 RtlZeroMemory(CdfsGlobalData
,
76 sizeof(CDFS_GLOBAL_DATA
));
77 CdfsGlobalData
->DriverObject
= DriverObject
;
78 CdfsGlobalData
->DeviceObject
= DeviceObject
;
80 /* Initialize driver data */
81 DeviceObject
->Flags
= DO_DIRECT_IO
;
82 DriverObject
->MajorFunction
[IRP_MJ_CLOSE
] = CdfsClose
;
83 DriverObject
->MajorFunction
[IRP_MJ_CLEANUP
] = CdfsCleanup
;
84 DriverObject
->MajorFunction
[IRP_MJ_CREATE
] = CdfsCreate
;
85 DriverObject
->MajorFunction
[IRP_MJ_READ
] = CdfsRead
;
86 DriverObject
->MajorFunction
[IRP_MJ_WRITE
] = CdfsWrite
;
87 DriverObject
->MajorFunction
[IRP_MJ_FILE_SYSTEM_CONTROL
] =
88 CdfsFileSystemControl
;
89 DriverObject
->MajorFunction
[IRP_MJ_DIRECTORY_CONTROL
] =
91 DriverObject
->MajorFunction
[IRP_MJ_QUERY_INFORMATION
] =
93 DriverObject
->MajorFunction
[IRP_MJ_SET_INFORMATION
] =
95 DriverObject
->MajorFunction
[IRP_MJ_QUERY_VOLUME_INFORMATION
] =
96 CdfsQueryVolumeInformation
;
97 DriverObject
->MajorFunction
[IRP_MJ_SET_VOLUME_INFORMATION
] =
98 CdfsSetVolumeInformation
;
99 DriverObject
->MajorFunction
[IRP_MJ_DEVICE_CONTROL
] =
102 CdfsGlobalData
->FastIoDispatch
.SizeOfFastIoDispatch
= sizeof(FAST_IO_DISPATCH
);
103 CdfsGlobalData
->FastIoDispatch
.FastIoCheckIfPossible
= CdfsFastIoCheckIfPossible
;
104 CdfsGlobalData
->FastIoDispatch
.FastIoRead
= CdfsFastIoRead
;
105 CdfsGlobalData
->FastIoDispatch
.FastIoWrite
= CdfsFastIoWrite
;
106 DriverObject
->FastIoDispatch
= &CdfsGlobalData
->FastIoDispatch
;
108 DriverObject
->DriverUnload
= NULL
;
111 CdfsGlobalData
->CacheMgrCallbacks
.AcquireForLazyWrite
= CdfsAcquireForLazyWrite
;
112 CdfsGlobalData
->CacheMgrCallbacks
.ReleaseFromLazyWrite
= CdfsReleaseFromLazyWrite
;
113 CdfsGlobalData
->CacheMgrCallbacks
.AcquireForReadAhead
= CdfsAcquireForLazyWrite
;
114 CdfsGlobalData
->CacheMgrCallbacks
.ReleaseFromReadAhead
= CdfsReleaseFromLazyWrite
;
116 DeviceObject
->Flags
|= DO_LOW_PRIORITY_FILESYSTEM
;
118 IoRegisterFileSystem(DeviceObject
);
119 DeviceObject
->Flags
&= ~DO_DEVICE_INITIALIZING
;
121 return(STATUS_SUCCESS
);
126 CdfsAcquireForLazyWrite(IN PVOID Context
,
129 PFCB Fcb
= (PFCB
)Context
;
131 DPRINT("CdfsAcquireForLazyWrite(): Fcb %p\n", Fcb
);
133 if (!ExAcquireResourceExclusiveLite(&(Fcb
->MainResource
), Wait
))
135 DPRINT("CdfsAcquireForLazyWrite(): ExReleaseResourceLite failed.\n");
142 CdfsReleaseFromLazyWrite(IN PVOID Context
)
144 PFCB Fcb
= (PFCB
)Context
;
146 DPRINT("CdfsReleaseFromLazyWrite(): Fcb %p\n", Fcb
);
148 ExReleaseResourceLite(&(Fcb
->MainResource
));
153 CdfsFastIoCheckIfPossible(
154 _In_ PFILE_OBJECT FileObject
,
155 _In_ PLARGE_INTEGER FileOffset
,
159 _In_ BOOLEAN CheckForReadOperation
,
160 _Out_ PIO_STATUS_BLOCK IoStatus
,
161 _In_ PDEVICE_OBJECT DeviceObject
)
164 UNREFERENCED_PARAMETER(FileObject
);
165 UNREFERENCED_PARAMETER(FileOffset
);
166 UNREFERENCED_PARAMETER(Length
);
167 UNREFERENCED_PARAMETER(Wait
);
168 UNREFERENCED_PARAMETER(LockKey
);
169 UNREFERENCED_PARAMETER(CheckForReadOperation
);
170 UNREFERENCED_PARAMETER(IoStatus
);
171 UNREFERENCED_PARAMETER(DeviceObject
);
178 _In_ PFILE_OBJECT FileObject
,
179 _In_ PLARGE_INTEGER FileOffset
,
184 _Out_ PIO_STATUS_BLOCK IoStatus
,
185 _In_ PDEVICE_OBJECT DeviceObject
)
187 DBG_UNREFERENCED_PARAMETER(FileObject
);
188 DBG_UNREFERENCED_PARAMETER(FileOffset
);
189 DBG_UNREFERENCED_PARAMETER(Length
);
190 DBG_UNREFERENCED_PARAMETER(Wait
);
191 DBG_UNREFERENCED_PARAMETER(LockKey
);
192 DBG_UNREFERENCED_PARAMETER(Buffer
);
193 DBG_UNREFERENCED_PARAMETER(IoStatus
);
194 DBG_UNREFERENCED_PARAMETER(DeviceObject
);
201 _In_ PFILE_OBJECT FileObject
,
202 _In_ PLARGE_INTEGER FileOffset
,
207 _Out_ PIO_STATUS_BLOCK IoStatus
,
208 _In_ PDEVICE_OBJECT DeviceObject
)
210 DBG_UNREFERENCED_PARAMETER(FileObject
);
211 DBG_UNREFERENCED_PARAMETER(FileOffset
);
212 DBG_UNREFERENCED_PARAMETER(Length
);
213 DBG_UNREFERENCED_PARAMETER(Wait
);
214 DBG_UNREFERENCED_PARAMETER(LockKey
);
215 DBG_UNREFERENCED_PARAMETER(Buffer
);
216 DBG_UNREFERENCED_PARAMETER(IoStatus
);
217 DBG_UNREFERENCED_PARAMETER(DeviceObject
);