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Major refactoring: WIP

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This commit is contained in:
Bill Zissimopoulos 2015-12-22 17:49:23 -08:00
parent 7a12fe0713
commit ebfabba568
2 changed files with 30 additions and 38 deletions
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2
src/sys/fsctl.c
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@ -32,9 +32,11 @@ static NTSTATUS FspFsctlFileSystemControl(
switch (IrpSp->Parameters.FileSystemControl.FsControlCode) switch (IrpSp->Parameters.FileSystemControl.FsControlCode)
{ {
case FSP_FSCTL_VOLUME_NAME: case FSP_FSCTL_VOLUME_NAME:
if (0 != IrpSp->FileObject->FsContext2)
Result = FspVolumeGetName(DeviceObject, Irp, IrpSp); Result = FspVolumeGetName(DeviceObject, Irp, IrpSp);
break; break;
case FSP_FSCTL_TRANSACT: case FSP_FSCTL_TRANSACT:
if (0 != IrpSp->FileObject->FsContext2)
Result = FspVolumeTransact(DeviceObject, Irp, IrpSp); Result = FspVolumeTransact(DeviceObject, Irp, IrpSp);
break; break;
} }

62
src/sys/volume.c
View File

@ -348,6 +348,7 @@ NTSTATUS FspVolumeGetName(
ASSERT(IRP_MJ_FILE_SYSTEM_CONTROL == IrpSp->MajorFunction); ASSERT(IRP_MJ_FILE_SYSTEM_CONTROL == IrpSp->MajorFunction);
ASSERT(IRP_MN_USER_FS_REQUEST == IrpSp->MinorFunction); ASSERT(IRP_MN_USER_FS_REQUEST == IrpSp->MinorFunction);
ASSERT(FSP_FSCTL_VOLUME_NAME == IrpSp->Parameters.FileSystemControl.FsControlCode); ASSERT(FSP_FSCTL_VOLUME_NAME == IrpSp->Parameters.FileSystemControl.FsControlCode);
ASSERT(0 != IrpSp->FileObject->FsContext2);
/* check parameters */ /* check parameters */
ULONG OutputBufferLength = IrpSp->Parameters.FileSystemControl.OutputBufferLength; ULONG OutputBufferLength = IrpSp->Parameters.FileSystemControl.OutputBufferLength;
@ -375,35 +376,16 @@ NTSTATUS FspVolumeTransact(
{ {
PAGED_CODE(); PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST; ASSERT(IRP_MJ_FILE_SYSTEM_CONTROL == IrpSp->MajorFunction);
} ASSERT(IRP_MN_USER_FS_REQUEST == IrpSp->MinorFunction);
ASSERT(FSP_FSCTL_TRANSACT == IrpSp->Parameters.FileSystemControl.FsControlCode);
NTSTATUS FspVolumeRedirQueryPathEx( ASSERT(0 != IrpSp->FileObject->FsContext2);
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
}
NTSTATUS FspVolumeWork(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
}
#if 0
static NTSTATUS FspFsctlTransact(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
PAGED_CODE();
/* check parameters */ /* check parameters */
ULONG InputBufferLength = IrpSp->Parameters.FileSystemControl.InputBufferLength; ULONG InputBufferLength = IrpSp->Parameters.FileSystemControl.InputBufferLength;
ULONG OutputBufferLength = IrpSp->Parameters.FileSystemControl.OutputBufferLength; ULONG OutputBufferLength = IrpSp->Parameters.FileSystemControl.OutputBufferLength;
PVOID SystemBuffer = Irp->AssociatedIrp.SystemBuffer; PVOID SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
PVOID MdlBuffer;
if (0 != InputBufferLength && if (0 != InputBufferLength &&
FSP_FSCTL_DEFAULT_ALIGN_UP(sizeof(FSP_FSCTL_TRANSACT_RSP)) > InputBufferLength) FSP_FSCTL_DEFAULT_ALIGN_UP(sizeof(FSP_FSCTL_TRANSACT_RSP)) > InputBufferLength)
return STATUS_INVALID_PARAMETER; return STATUS_INVALID_PARAMETER;
@ -412,20 +394,14 @@ static NTSTATUS FspFsctlTransact(
return STATUS_BUFFER_TOO_SMALL; return STATUS_BUFFER_TOO_SMALL;
NTSTATUS Result; NTSTATUS Result;
PDEVICE_OBJECT FsvolDeviceObject; PDEVICE_OBJECT FsvolDeviceObject = IrpSp->FileObject->FsContext2;
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension; FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
PVOID MdlBuffer;
PUINT8 BufferEnd; PUINT8 BufferEnd;
FSP_FSCTL_TRANSACT_RSP *Response, *NextResponse; FSP_FSCTL_TRANSACT_RSP *Response, *NextResponse;
FSP_FSCTL_TRANSACT_REQ *Request, *PendingIrpRequest; FSP_FSCTL_TRANSACT_REQ *Request, *PendingIrpRequest;
PIRP ProcessIrp, PendingIrp; PIRP ProcessIrp, PendingIrp;
LARGE_INTEGER Timeout; LARGE_INTEGER Timeout;
FsvolDeviceObject = FspFsvolDeviceObjectFromFileObject(IrpSp->FileObject);
if (0 == FsvolDeviceObject)
return STATUS_ACCESS_DENIED;
FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
/* process any user-mode file system responses */ /* process any user-mode file system responses */
Response = SystemBuffer; Response = SystemBuffer;
BufferEnd = (PUINT8)SystemBuffer + InputBufferLength; BufferEnd = (PUINT8)SystemBuffer + InputBufferLength;
@ -506,15 +482,29 @@ static NTSTATUS FspFsctlTransact(
PendingIrp = FspIoqNextPendingIrp(&FsvolDeviceExtension->Ioq, 0); PendingIrp = FspIoqNextPendingIrp(&FsvolDeviceExtension->Ioq, 0);
if (0 == PendingIrp) if (0 == PendingIrp)
break; break;
} }
Irp->IoStatus.Information = (PUINT8)Request - (PUINT8)MdlBuffer; Irp->IoStatus.Information = (PUINT8)Request - (PUINT8)MdlBuffer;
Result = STATUS_SUCCESS; return STATUS_SUCCESS;
return Result;
} }
NTSTATUS FspVolumeRedirQueryPathEx(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
}
NTSTATUS FspVolumeWork(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
}
#if 0
static NTSTATUS FspFsvolWork( static NTSTATUS FspFsvolWork(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp) PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{ {