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reactos/drivers/filesystems/cdfs/fsctl.c
Art Yerkes c501d8112c Create a branch for network fixes. 
svn path=/branches/aicom-network-fixes/; revision=34994
2008-08-01 11:32:26 +00:00

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/*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: drivers/fs/cdfs/fsctl.c
* PURPOSE: CDROM (ISO 9660) filesystem driver
* PROGRAMMER: Art Yerkes
* Eric Kohl
*/
/* INCLUDES *****************************************************************/
#include "cdfs.h"
#define NDEBUG
#include <debug.h>
/* FUNCTIONS ****************************************************************/
static __inline
int msf_to_lba (UCHAR m, UCHAR s, UCHAR f)
{
return (((m * 60) + s) * 75 + f) - 150;
}
static VOID
CdfsGetPVDData(PUCHAR Buffer,
PCDINFO CdInfo)
{
PPVD Pvd;
ULONG i;
PUCHAR pc;
PWCHAR pw;
union
{
ULONG Value;
UCHAR Part[4];
} Serial;
Pvd = (PPVD)Buffer;
/* Calculate the volume serial number */
Serial.Value = 0;
for (i = 0; i < 2048; i += 4)
{
/* DON'T optimize this to ULONG!!! (breaks overflow) */
Serial.Part[0] += Buffer[i+3];
Serial.Part[1] += Buffer[i+2];
Serial.Part[2] += Buffer[i+1];
Serial.Part[3] += Buffer[i+0];
}
CdInfo->SerialNumber = Serial.Value;
/* Extract the volume label */
pc = Pvd->VolumeId;
pw = CdInfo->VolumeLabel;
for (i = 0; i < MAXIMUM_VOLUME_LABEL_LENGTH && *pc != ' '; i++)
{
*pw++ = (WCHAR)*pc++;
}
*pw = 0;
CdInfo->VolumeLabelLength = i * sizeof(WCHAR);
CdInfo->VolumeSpaceSize = Pvd->VolumeSpaceSizeL;
CdInfo->RootStart = Pvd->RootDirRecord.ExtentLocationL;
CdInfo->RootSize = Pvd->RootDirRecord.DataLengthL;
DPRINT("VolumeSerial: %08lx\n", CdInfo->SerialNumber);
DPRINT("VolumeLabel: '%S'\n", CdInfo->VolumeLabel);
DPRINT("VolumeLabelLength: %lu\n", CdInfo->VolumeLabelLength);
DPRINT("VolumeSize: %lu\n", Pvd->VolumeSpaceSizeL);
DPRINT("RootStart: %lu\n", Pvd->RootDirRecord.ExtentLocationL);
DPRINT("RootSize: %lu\n", Pvd->RootDirRecord.DataLengthL);
DPRINT("PathTableSize: %lu\n", Pvd->PathTableSizeL);
DPRINT("PathTablePos: %lu\n", Pvd->LPathTablePos);
DPRINT("OptPathTablePos: %lu\n", Pvd->LOptPathTablePos);
#if 0
DbgPrint("******** PVD **********\n");
DbgPrint("VdType: %d\n", Pvd->VdType);
DbgPrint("StandardId: '%.*s'\n", 5, Pvd->StandardId);
DbgPrint("VdVersion: %d\n", Pvd->VdVersion);
DbgPrint("SystemId: '%.*s'\n", 32, Pvd->SystemId);
DbgPrint("VolumeId: '%.*s'\n", 32, Pvd->VolumeId);
DbgPrint("VolumeSpaceSizeL: %d (%x)\n", Pvd->VolumeSpaceSizeL, Pvd->VolumeSpaceSizeL);
DbgPrint("VolumeSpaceSizeM: %d (%x)\n", Pvd->VolumeSpaceSizeM, Pvd->VolumeSpaceSizeM);
DbgPrint("VolumeSetSize: %d (%x)\n", Pvd->VolumeSequenceNumber, Pvd->VolumeSequenceNumber);
DbgPrint("VolumeSequenceNumber: %d (%x)\n", Pvd->VolumeSequenceNumber, Pvd->VolumeSequenceNumber);
DbgPrint("LogicalBlockSize: %d (%x)\n", Pvd->LogicalBlockSize, Pvd->LogicalBlockSize);
DbgPrint("PathTableSizeL: %d (%x)\n", Pvd->PathTableSizeL, Pvd->PathTableSizeL);
DbgPrint("PathTableSizeM: %d (%x)\n", Pvd->PathTableSizeM, Pvd->PathTableSizeM);
DbgPrint("LPathTablePos: %d (%x)\n", Pvd->LPathTablePos, Pvd->LPathTablePos);
DbgPrint("LOptPathTablePos: %d (%x)\n", Pvd->LOptPathTablePos, Pvd->LOptPathTablePos);
DbgPrint("MPathTablePos: %d (%x)\n", Pvd->MPathTablePos, Pvd->MPathTablePos);
DbgPrint("MOptPathTablePos: %d (%x)\n", Pvd->MOptPathTablePos, Pvd->MOptPathTablePos);
DbgPrint("VolumeSetIdentifier: '%.*s'\n", 128, Pvd->VolumeSetIdentifier);
DbgPrint("PublisherIdentifier: '%.*s'\n", 128, Pvd->PublisherIdentifier);
DbgPrint("******** Root *********\n");
DbgPrint("RecordLength: %d\n", Pvd->RootDirRecord.RecordLength);
DbgPrint("ExtAttrRecordLength: %d\n", Pvd->RootDirRecord.ExtAttrRecordLength);
DbgPrint("ExtentLocationL: %d\n", Pvd->RootDirRecord.ExtentLocationL);
DbgPrint("DataLengthL: %d\n", Pvd->RootDirRecord.DataLengthL);
DbgPrint("Year: %d\n", Pvd->RootDirRecord.Year);
DbgPrint("Month: %d\n", Pvd->RootDirRecord.Month);
DbgPrint("Day: %d\n", Pvd->RootDirRecord.Day);
DbgPrint("Hour: %d\n", Pvd->RootDirRecord.Hour);
DbgPrint("Minute: %d\n", Pvd->RootDirRecord.Minute);
DbgPrint("Second: %d\n", Pvd->RootDirRecord.Second);
DbgPrint("TimeZone: %d\n", Pvd->RootDirRecord.TimeZone);
DbgPrint("FileFlags: %d\n", Pvd->RootDirRecord.FileFlags);
DbgPrint("FileUnitSize: %d\n", Pvd->RootDirRecord.FileUnitSize);
DbgPrint("InterleaveGapSize: %d\n", Pvd->RootDirRecord.InterleaveGapSize);
DbgPrint("VolumeSequenceNumber: %d\n", Pvd->RootDirRecord.VolumeSequenceNumber);
DbgPrint("FileIdLength: %d\n", Pvd->RootDirRecord.FileIdLength);
DbgPrint("FileId: '%.*s'\n", Pvd->RootDirRecord.FileId);
DbgPrint("***********************\n");
#endif
}
static VOID
CdfsGetSVDData(PUCHAR Buffer,
PCDINFO CdInfo)
{
PSVD Svd;
ULONG JolietLevel = 0;
Svd = (PSVD)Buffer;
DPRINT("EscapeSequences: '%.32s'\n", Svd->EscapeSequences);
if (strncmp((PCHAR)Svd->EscapeSequences, "%/@", 3) == 0)
{
DPRINT("Joliet extension found (UCS-2 Level 1)\n");
JolietLevel = 1;
}
else if (strncmp((PCHAR)Svd->EscapeSequences, "%/C", 3) == 0)
{
DPRINT("Joliet extension found (UCS-2 Level 2)\n");
JolietLevel = 2;
}
else if (strncmp((PCHAR)Svd->EscapeSequences, "%/E", 3) == 0)
{
DPRINT("Joliet extension found (UCS-2 Level 3)\n");
JolietLevel = 3;
}
CdInfo->JolietLevel = JolietLevel;
if (JolietLevel != 0)
{
CdInfo->RootStart = Svd->RootDirRecord.ExtentLocationL;
CdInfo->RootSize = Svd->RootDirRecord.DataLengthL;
DPRINT("RootStart: %lu\n", Svd->RootDirRecord.ExtentLocationL);
DPRINT("RootSize: %lu\n", Svd->RootDirRecord.DataLengthL);
}
}
static NTSTATUS
CdfsGetVolumeData(PDEVICE_OBJECT DeviceObject,
PCDINFO CdInfo)
{
PUCHAR Buffer;
NTSTATUS Status;
ULONG Sector;
PVD_HEADER VdHeader;
ULONG Size;
ULONG Offset;
ULONG i;
struct
{
UCHAR Length[2];
UCHAR FirstSession;
UCHAR LastSession;
TRACK_DATA TrackData;
}
Toc;
DPRINT("CdfsGetVolumeData\n");
Buffer = ExAllocatePool(NonPagedPool,
CDFS_BASIC_SECTOR);
if (Buffer == NULL)
return STATUS_INSUFFICIENT_RESOURCES;
Size = sizeof(Toc);
Status = CdfsDeviceIoControl(DeviceObject,
IOCTL_CDROM_GET_LAST_SESSION,
NULL,
0,
&Toc,
&Size,
TRUE);
if (!NT_SUCCESS(Status))
{
ExFreePool(Buffer);
return Status;
}
DPRINT("FirstSession %d, LastSession %d, FirstTrack %d\n",
Toc.FirstSession, Toc.LastSession, Toc.TrackData.TrackNumber);
Offset = 0;
for (i = 0; i < 4; i++)
{
Offset = (Offset << 8) + Toc.TrackData.Address[i];
}
CdInfo->VolumeOffset = Offset;
DPRINT("Offset of first track in last session %d\n", Offset);
CdInfo->JolietLevel = 0;
VdHeader = (PVD_HEADER)Buffer;
Buffer[0] = 0;
for (Sector = CDFS_PRIMARY_DESCRIPTOR_LOCATION; Sector < 100 && Buffer[0] != 255; Sector++)
{
/* Read the Primary Volume Descriptor (PVD) */
Status = CdfsReadSectors (DeviceObject,
Sector + Offset,
1,
Buffer,
TRUE);
if (!NT_SUCCESS(Status))
{
ExFreePool(Buffer);
return Status;
}
if (Sector == CDFS_PRIMARY_DESCRIPTOR_LOCATION)
{
DPRINT("CD-identifier: [%.5s]\n", Buffer + 1);
if (Buffer[0] != 1 || Buffer[1] != 'C' || Buffer[2] != 'D' ||
Buffer[3] != '0' || Buffer[4] != '0' || Buffer[5] != '1')
{
ExFreePool(Buffer);
return STATUS_UNRECOGNIZED_VOLUME;
}
}
switch (VdHeader->VdType)
{
case 0:
DPRINT("BootVolumeDescriptor found!\n");
break;
case 1:
DPRINT("PrimaryVolumeDescriptor found!\n");
CdfsGetPVDData(Buffer, CdInfo);
break;
case 2:
DPRINT("SupplementaryVolumeDescriptor found!\n");
CdfsGetSVDData(Buffer, CdInfo);
break;
case 3:
DPRINT("VolumePartitionDescriptor found!\n");
break;
case 255:
DPRINT("VolumeDescriptorSetTerminator found!\n");
break;
default:
DPRINT1("Unknown volume descriptor type %u found!\n", VdHeader->VdType);
break;
}
}
ExFreePool(Buffer);
return(STATUS_SUCCESS);
}
static NTSTATUS
CdfsMountVolume(PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PDEVICE_EXTENSION DeviceExt = NULL;
PDEVICE_OBJECT NewDeviceObject = NULL;
PDEVICE_OBJECT DeviceToMount;
PIO_STACK_LOCATION Stack;
PFCB Fcb = NULL;
PCCB Ccb = NULL;
PVPB Vpb;
NTSTATUS Status;
CDINFO CdInfo;
DPRINT("CdfsMountVolume() called\n");
if (DeviceObject != CdfsGlobalData->DeviceObject)
{
Status = STATUS_INVALID_DEVICE_REQUEST;
goto ByeBye;
}
Stack = IoGetCurrentIrpStackLocation(Irp);
DeviceToMount = Stack->Parameters.MountVolume.DeviceObject;
Vpb = Stack->Parameters.MountVolume.Vpb;
Status = CdfsGetVolumeData(DeviceToMount, &CdInfo);
if (!NT_SUCCESS(Status))
{
goto ByeBye;
}
Status = IoCreateDevice(CdfsGlobalData->DriverObject,
sizeof(DEVICE_EXTENSION),
NULL,
FILE_DEVICE_FILE_SYSTEM,
// FILE_DEVICE_DISK_FILE_SYSTEM,
0,
FALSE,
&NewDeviceObject);
if (!NT_SUCCESS(Status))
goto ByeBye;
NewDeviceObject->Flags = NewDeviceObject->Flags | DO_DIRECT_IO;
NewDeviceObject->Flags &= ~DO_VERIFY_VOLUME;
DeviceExt = (PVOID)NewDeviceObject->DeviceExtension;
RtlZeroMemory(DeviceExt,
sizeof(DEVICE_EXTENSION));
Vpb->SerialNumber = CdInfo.SerialNumber;
Vpb->VolumeLabelLength = CdInfo.VolumeLabelLength;
RtlCopyMemory(Vpb->VolumeLabel, CdInfo.VolumeLabel, CdInfo.VolumeLabelLength * sizeof(WCHAR));
RtlCopyMemory(&DeviceExt->CdInfo, &CdInfo, sizeof(CDINFO));
NewDeviceObject->Vpb = DeviceToMount->Vpb;
DeviceExt->VolumeDevice = NewDeviceObject;
DeviceExt->StorageDevice = DeviceToMount;
DeviceExt->StorageDevice->Vpb->DeviceObject = NewDeviceObject;
DeviceExt->StorageDevice->Vpb->RealDevice = DeviceExt->StorageDevice;
DeviceExt->StorageDevice->Vpb->Flags |= VPB_MOUNTED;
NewDeviceObject->StackSize = DeviceExt->StorageDevice->StackSize + 1;
NewDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
/* Close (and cleanup) might be called from IoCreateStreamFileObject
* but we use this resource from CdfsCleanup, therefore it should be
* initialized no later than this. */
ExInitializeResourceLite(&DeviceExt->DirResource);
DeviceExt->StreamFileObject = IoCreateStreamFileObject(NULL,
DeviceExt->StorageDevice);
Fcb = CdfsCreateFCB(NULL);
if (Fcb == NULL)
{
Status = STATUS_INSUFFICIENT_RESOURCES;
goto ByeBye;
}
Ccb = ExAllocatePoolWithTag(NonPagedPool,
sizeof(CCB),
TAG_CCB);
if (Ccb == NULL)
{
Status = STATUS_INSUFFICIENT_RESOURCES;
goto ByeBye;
}
RtlZeroMemory(Ccb,
sizeof(CCB));
DeviceExt->StreamFileObject->FsContext = Fcb;
DeviceExt->StreamFileObject->FsContext2 = Ccb;
DeviceExt->StreamFileObject->SectionObjectPointer = &Fcb->SectionObjectPointers;
DeviceExt->StreamFileObject->PrivateCacheMap = NULL;
DeviceExt->StreamFileObject->Vpb = DeviceExt->Vpb;
Ccb->PtrFileObject = DeviceExt->StreamFileObject;
Fcb->FileObject = DeviceExt->StreamFileObject;
Fcb->DevExt = (PDEVICE_EXTENSION)DeviceExt->StorageDevice;
Fcb->Flags = FCB_IS_VOLUME_STREAM;
Fcb->RFCB.FileSize.QuadPart = (DeviceExt->CdInfo.VolumeSpaceSize + DeviceExt->CdInfo.VolumeOffset) * BLOCKSIZE;
Fcb->RFCB.ValidDataLength = Fcb->RFCB.AllocationSize = Fcb->RFCB.FileSize;
Fcb->Entry.ExtentLocationL = 0;
Fcb->Entry.DataLengthL = (DeviceExt->CdInfo.VolumeSpaceSize + DeviceExt->CdInfo.VolumeOffset) * BLOCKSIZE;
CcInitializeCacheMap(DeviceExt->StreamFileObject,
(PCC_FILE_SIZES)(&Fcb->RFCB.AllocationSize),
TRUE,
&(CdfsGlobalData->CacheMgrCallbacks),
Fcb);
ExInitializeResourceLite(&DeviceExt->VcbResource);
KeInitializeSpinLock(&DeviceExt->FcbListLock);
InitializeListHead(&DeviceExt->FcbListHead);
Status = STATUS_SUCCESS;
ByeBye:
if (!NT_SUCCESS(Status))
{
/* Cleanup */
if (DeviceExt && DeviceExt->StreamFileObject)
ObDereferenceObject(DeviceExt->StreamFileObject);
if (Fcb)
ExFreePool(Fcb);
if (Ccb)
ExFreePool(Ccb);
if (NewDeviceObject)
IoDeleteDevice(NewDeviceObject);
}
DPRINT("CdfsMountVolume() done (Status: %lx)\n", Status);
return(Status);
}
static NTSTATUS
CdfsVerifyVolume(PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PDEVICE_EXTENSION DeviceExt;
PDEVICE_OBJECT DeviceToVerify;
PIO_STACK_LOCATION Stack;
NTSTATUS Status;
CDINFO CdInfo;
PLIST_ENTRY Entry;
PFCB Fcb;
DPRINT1 ("CdfsVerifyVolume() called\n");
#if 0
if (DeviceObject != CdfsGlobalData->DeviceObject)
{
DPRINT1("DeviceObject != CdfsGlobalData->DeviceObject\n");
return(STATUS_INVALID_DEVICE_REQUEST);
}
#endif
DeviceExt = DeviceObject->DeviceExtension;
Stack = IoGetCurrentIrpStackLocation (Irp);
DeviceToVerify = Stack->Parameters.VerifyVolume.DeviceObject;
ExAcquireResourceExclusiveLite (&DeviceExt->VcbResource,
TRUE);
if (!(DeviceToVerify->Flags & DO_VERIFY_VOLUME))
{
DPRINT1 ("Volume has been verified!\n");
ExReleaseResourceLite (&DeviceExt->VcbResource);
return STATUS_SUCCESS;
}
DPRINT1 ("Device object %p Device to verify %p\n", DeviceObject, DeviceToVerify);
Status = CdfsGetVolumeData (DeviceToVerify,
&CdInfo);
if (NT_SUCCESS(Status) &&
CdInfo.SerialNumber == DeviceToVerify->Vpb->SerialNumber &&
CdInfo.VolumeLabelLength == DeviceToVerify->Vpb->VolumeLabelLength &&
!wcsncmp (CdInfo.VolumeLabel, DeviceToVerify->Vpb->VolumeLabel, CdInfo.VolumeLabelLength))
{
DPRINT1 ("Same volume!\n");
/* FIXME: Flush and purge metadata */
Status = STATUS_SUCCESS;
}
else
{
DPRINT1 ("Different volume!\n");
/* FIXME: force volume dismount */
Entry = DeviceExt->FcbListHead.Flink;
while (Entry != &DeviceExt->FcbListHead)
{
Fcb = (PFCB)CONTAINING_RECORD(Entry, FCB, FcbListEntry);
DPRINT1("OpenFile %S RefCount %ld\n", Fcb->PathName, Fcb->RefCount);
Entry = Entry->Flink;
}
Status = STATUS_WRONG_VOLUME;
}
DeviceToVerify->Flags &= ~DO_VERIFY_VOLUME;
ExReleaseResourceLite (&DeviceExt->VcbResource);
return Status;
}
NTSTATUS NTAPI
CdfsSetCompression(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
PIO_STACK_LOCATION Stack;
USHORT CompressionState;
Stack = IoGetCurrentIrpStackLocation(Irp);
if (Stack->Parameters.DeviceIoControl.InputBufferLength != sizeof(CompressionState))
return STATUS_INVALID_DEVICE_REQUEST;
CompressionState = *(USHORT *)Irp->AssociatedIrp.SystemBuffer;
if (CompressionState != COMPRESSION_FORMAT_NONE)
return STATUS_INVALID_PARAMETER;
return STATUS_SUCCESS;
}
NTSTATUS STDCALL
CdfsFileSystemControl(PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PIO_STACK_LOCATION Stack;
NTSTATUS Status;
DPRINT("CdfsFileSystemControl() called\n");
Stack = IoGetCurrentIrpStackLocation(Irp);
switch (Stack->MinorFunction)
{
case IRP_MN_USER_FS_REQUEST:
switch (Stack->Parameters.DeviceIoControl.IoControlCode)
{
case FSCTL_SET_COMPRESSION:
DPRINT("CDFS: IRP_MN_USER_FS_REQUEST / FSCTL_SET_COMPRESSION\n");
Status = CdfsSetCompression(DeviceObject, Irp);
break;
default:
DPRINT1("CDFS: IRP_MN_USER_FS_REQUEST / Unknown IoControlCode 0x%x\n",
Stack->Parameters.DeviceIoControl.IoControlCode);
Status = STATUS_INVALID_DEVICE_REQUEST;
}
break;
case IRP_MN_MOUNT_VOLUME:
DPRINT("CDFS: IRP_MN_MOUNT_VOLUME\n");
Status = CdfsMountVolume(DeviceObject, Irp);
break;
case IRP_MN_VERIFY_VOLUME:
DPRINT1("CDFS: IRP_MN_VERIFY_VOLUME\n");
Status = CdfsVerifyVolume(DeviceObject, Irp);
break;
default:
DPRINT1("CDFS FSC: MinorFunction %d\n", Stack->MinorFunction);
Status = STATUS_INVALID_DEVICE_REQUEST;
break;
}
Irp->IoStatus.Status = Status;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return(Status);
}
/* EOF */
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