mirror of
https://github.com/reactos/reactos.git
synced 2024-07-17 18:06:11 +00:00
2b82fe44ea
- Create a branch to drop my ndisuio work svn path=/branches/wlan-bringup/; revision=54809
143 lines
4.6 KiB
C
143 lines
4.6 KiB
C
/*
|
|
* ReactOS kernel
|
|
* Copyright (C) 2002, 2003 ReactOS Team
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
/* $Id$
|
|
*
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PROJECT: ReactOS kernel
|
|
* FILE: drivers/fs/cdfs/cdfs.c
|
|
* PURPOSE: CDROM (ISO 9660) filesystem driver
|
|
* PROGRAMMER: Art Yerkes
|
|
* Eric Kohl
|
|
*/
|
|
|
|
/* INCLUDES *****************************************************************/
|
|
|
|
#include "cdfs.h"
|
|
|
|
#define NDEBUG
|
|
#include <debug.h>
|
|
|
|
/* GLOBALS ******************************************************************/
|
|
|
|
PCDFS_GLOBAL_DATA CdfsGlobalData;
|
|
|
|
|
|
/* FUNCTIONS ****************************************************************/
|
|
|
|
NTSTATUS NTAPI
|
|
DriverEntry(PDRIVER_OBJECT DriverObject,
|
|
PUNICODE_STRING RegistryPath)
|
|
/*
|
|
* FUNCTION: Called by the system to initalize the driver
|
|
* ARGUMENTS:
|
|
* DriverObject = object describing this driver
|
|
* RegistryPath = path to our configuration entries
|
|
* RETURNS: Success or failure
|
|
*/
|
|
{
|
|
PDEVICE_OBJECT DeviceObject;
|
|
NTSTATUS Status;
|
|
UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(L"\\Cdfs");
|
|
|
|
DPRINT("CDFS 0.0.3\n");
|
|
|
|
Status = IoCreateDevice(DriverObject,
|
|
sizeof(CDFS_GLOBAL_DATA),
|
|
&DeviceName,
|
|
FILE_DEVICE_CD_ROM_FILE_SYSTEM,
|
|
0,
|
|
FALSE,
|
|
&DeviceObject);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
return(Status);
|
|
}
|
|
|
|
/* Initialize global data */
|
|
CdfsGlobalData = DeviceObject->DeviceExtension;
|
|
RtlZeroMemory(CdfsGlobalData,
|
|
sizeof(CDFS_GLOBAL_DATA));
|
|
CdfsGlobalData->DriverObject = DriverObject;
|
|
CdfsGlobalData->DeviceObject = DeviceObject;
|
|
|
|
/* Initialize driver data */
|
|
DeviceObject->Flags = DO_DIRECT_IO;
|
|
DriverObject->MajorFunction[IRP_MJ_CLOSE] = CdfsClose;
|
|
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = CdfsCleanup;
|
|
DriverObject->MajorFunction[IRP_MJ_CREATE] = CdfsCreate;
|
|
DriverObject->MajorFunction[IRP_MJ_READ] = CdfsRead;
|
|
DriverObject->MajorFunction[IRP_MJ_WRITE] = CdfsWrite;
|
|
DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] =
|
|
CdfsFileSystemControl;
|
|
DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] =
|
|
CdfsDirectoryControl;
|
|
DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] =
|
|
CdfsQueryInformation;
|
|
DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] =
|
|
CdfsSetInformation;
|
|
DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] =
|
|
CdfsQueryVolumeInformation;
|
|
DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] =
|
|
CdfsSetVolumeInformation;
|
|
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] =
|
|
CdfsDeviceControl;
|
|
|
|
DriverObject->DriverUnload = NULL;
|
|
|
|
/* Cache manager */
|
|
CdfsGlobalData->CacheMgrCallbacks.AcquireForLazyWrite = CdfsAcquireForLazyWrite;
|
|
CdfsGlobalData->CacheMgrCallbacks.ReleaseFromLazyWrite = CdfsReleaseFromLazyWrite;
|
|
CdfsGlobalData->CacheMgrCallbacks.AcquireForReadAhead = CdfsAcquireForLazyWrite;
|
|
CdfsGlobalData->CacheMgrCallbacks.ReleaseFromReadAhead = CdfsReleaseFromLazyWrite;
|
|
|
|
DeviceObject->Flags |= DO_LOW_PRIORITY_FILESYSTEM;
|
|
|
|
IoRegisterFileSystem(DeviceObject);
|
|
DeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
|
|
|
|
return(STATUS_SUCCESS);
|
|
}
|
|
|
|
|
|
BOOLEAN NTAPI
|
|
CdfsAcquireForLazyWrite(IN PVOID Context,
|
|
IN BOOLEAN Wait)
|
|
{
|
|
PFCB Fcb = (PFCB)Context;
|
|
ASSERT(Fcb);
|
|
DPRINT("CdfsAcquireForLazyWrite(): Fcb %p\n", Fcb);
|
|
|
|
if (!ExAcquireResourceExclusiveLite(&(Fcb->MainResource), Wait))
|
|
{
|
|
DPRINT("CdfsAcquireForLazyWrite(): ExReleaseResourceLite failed.\n");
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
VOID NTAPI
|
|
CdfsReleaseFromLazyWrite(IN PVOID Context)
|
|
{
|
|
PFCB Fcb = (PFCB)Context;
|
|
ASSERT(Fcb);
|
|
DPRINT("CdfsReleaseFromLazyWrite(): Fcb %p\n", Fcb);
|
|
|
|
ExReleaseResourceLite(&(Fcb->MainResource));
|
|
}
|