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Added support for accessing the raw volume.

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Disabled some debug messages.

svn path=/trunk/; revision=2912
This commit is contained in:
Hartmut Birr 2002-05-05 20:19:14 +00:00
parent d31b1c24ca
commit cc92156f65
1 changed files with 26 additions and 6 deletions
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32
reactos/drivers/fs/vfat/fsctl.c
View file

@ -1,4 +1,4 @@
/* $Id: fsctl.c,v 1.2 2002/04/10 09:58:45 ekohl Exp $
/* $Id: fsctl.c,v 1.3 2002/05/05 20:19:14 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -61,10 +61,10 @@ VfatHasFileSystem(PDEVICE_OBJECT DeviceToMount,
&Size);
if (!NT_SUCCESS(Status))
{
DPRINT1("VfatBlockDeviceIoControl faild (%x)\n", Status);
DPRINT("VfatBlockDeviceIoControl faild (%x)\n", Status);
return Status;
}
#ifdef DBG
#ifndef NDEBUG
DbgPrint("Partition Information:\n");
DbgPrint("StartingOffset %u\n", PartitionInfo.StartingOffset.QuadPart / 512);
DbgPrint("PartitionLength %u\n", PartitionInfo.PartitionLength.QuadPart / 512);
@ -113,7 +113,7 @@ ReadSector:
FatInfo.rootDirectorySectors = ((Boot->RootEntries * 32) + Boot->BytesPerSector - 1) / Boot->BytesPerSector;
FatInfo.rootStart = FatInfo.FATStart + FatInfo.FATCount * FatInfo.FATSectors;
FatInfo.dataStart = FatInfo.rootStart + FatInfo.rootDirectorySectors;
Sectors = Boot->Sectors ? Boot->Sectors : Boot->SectorsHuge;
FatInfo.Sectors = Sectors = Boot->Sectors ? Boot->Sectors : Boot->SectorsHuge;
Sectors -= Boot->ReservedSectors + FatInfo.FATCount * FatInfo.FATSectors + FatInfo.rootDirectorySectors;
FatInfo.NumberOfClusters = Sectors / Boot->SectorsPerCluster;
if (FatInfo.NumberOfClusters < 4085)
@ -153,7 +153,7 @@ VfatMountDevice(PDEVICE_EXTENSION DeviceExt,
NTSTATUS Status;
BOOLEAN RecognizedFS;
DPRINT1("Mounting VFAT device...\n");
DPRINT("Mounting VFAT device...\n");
Status = VfatHasFileSystem(DeviceToMount, &RecognizedFS, &DeviceExt->FatInfo);
if (!NT_SUCCESS(Status))
@ -189,6 +189,7 @@ VfatMount (PVFAT_IRP_CONTEXT IrpContext)
BOOLEAN RecognizedFS;
NTSTATUS Status;
PVFATFCB Fcb = NULL;
PVFATFCB VolumeFcb = NULL;
PVFATCCB Ccb = NULL;
LARGE_INTEGER timeout;
@ -241,7 +242,7 @@ VfatMount (PVFAT_IRP_CONTEXT IrpContext)
goto ByeBye;
}
#ifdef DBG
#ifndef NDEBUG
DbgPrint("BytesPerSector: %d\n", DeviceExt->FatInfo.BytesPerSector);
DbgPrint("SectorsPerCluster: %d\n", DeviceExt->FatInfo.SectorsPerCluster);
DbgPrint("FATCount: %d\n", DeviceExt->FatInfo.FATCount);
@ -270,6 +271,8 @@ VfatMount (PVFAT_IRP_CONTEXT IrpContext)
goto ByeBye;
}
memset(Ccb, 0, sizeof (VFATCCB));
wcscpy(Fcb->PathName, L"$$Fat$$");
Fcb->ObjectName = Fcb->PathName;
DeviceExt->FATFileObject->Flags = DeviceExt->FATFileObject->Flags | FO_FCB_IS_VALID | FO_DIRECT_CACHE_PAGING_READ;
DeviceExt->FATFileObject->FsContext = (PVOID) &Fcb->RFCB;
DeviceExt->FATFileObject->FsContext2 = Ccb;
@ -309,6 +312,21 @@ VfatMount (PVFAT_IRP_CONTEXT IrpContext)
KeInitializeSpinLock(&DeviceExt->FcbListLock);
InitializeListHead(&DeviceExt->FcbListHead);
VolumeFcb = vfatNewFCB(NULL);
if (VolumeFcb == NULL)
{
Status = STATUS_INSUFFICIENT_RESOURCES;
goto ByeBye;
}
wcscpy(VolumeFcb->PathName, L"$$Volume$$");
VolumeFcb->ObjectName = VolumeFcb->PathName;
VolumeFcb->Flags = FCB_IS_VOLUME;
VolumeFcb->RFCB.FileSize.QuadPart = DeviceExt->FatInfo.Sectors * BLOCKSIZE;
VolumeFcb->RFCB.ValidDataLength = VolumeFcb->RFCB.FileSize;
VolumeFcb->RFCB.AllocationSize = VolumeFcb->RFCB.FileSize;
VolumeFcb->pDevExt = (PDEVICE_EXTENSION)DeviceExt->StorageDevice;
DeviceExt->VolumeFcb = VolumeFcb;
/* read serial number */
DeviceObject->Vpb->SerialNumber = DeviceExt->FatInfo.VolumeID;
@ -330,6 +348,8 @@ ByeBye:
ExFreePool(Ccb);
if (DeviceObject)
IoDeleteDevice(DeviceObject);
if (VolumeFcb)
vfatDestroyFCB(VolumeFcb);
}
return Status;
}