From 63a1227b57d4990653400cb1c29c3f6dd1c141f8 Mon Sep 17 00:00:00 2001
From: Bill Zissimopoulos <billziss@navimatics.com>
Date: Tue, 22 Dec 2015 16:38:36 -0800
Subject: [PATCH] Major refactoring: WIP

---
 src/sys/volume.c | 123 -----------------------------------------------
 1 file changed, 123 deletions(-)

diff --git a/src/sys/volume.c b/src/sys/volume.c
index d1474498..0e94d897 100644
--- a/src/sys/volume.c
+++ b/src/sys/volume.c
@@ -215,129 +215,6 @@ NTSTATUS FspVolumeWork(
 }
 
 #if 0
-NTSTATUS FspFsctlCreateVolume(
-    PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
-{
-    PAGED_CODE();
-
-    /* check parameters */
-    ULONG InputBufferLength = IrpSp->Parameters.FileSystemControl.InputBufferLength;
-    ULONG OutputBufferLength = IrpSp->Parameters.FileSystemControl.OutputBufferLength;
-    PVOID SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
-    if (0 == SystemBuffer || sizeof(FSP_FSCTL_VOLUME_PARAMS) > InputBufferLength)
-        return STATUS_INVALID_PARAMETER;
-    if (FSP_FSCTL_CREATE_BUFFER_SIZEMIN > OutputBufferLength)
-        return STATUS_BUFFER_TOO_SMALL;
-
-    NTSTATUS Result;
-    FSP_FSCTL_VOLUME_PARAMS VolumeParams = *(FSP_FSCTL_VOLUME_PARAMS *)SystemBuffer;
-    GUID Guid;
-    UNICODE_STRING DeviceSddl;
-    UNICODE_STRING DeviceName;
-    FSP_FSCTL_FILE_CONTEXT2 *FsContext2;
-    HANDLE MupHandle = 0;
-    PDEVICE_OBJECT FsvrtDeviceObject = 0;
-    PDEVICE_OBJECT FsvolDeviceObject;
-    FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension;
-
-    /* check the passed in VolumeParams */
-    if (FspFsctlIrpTimeoutMinimum > VolumeParams.IrpTimeout ||
-        VolumeParams.IrpTimeout > FspFsctlIrpTimeoutMaximum)
-    {
-#if DBG
-        /* allow the debug timeout value on debug builds */
-        if (FspFsctlIrpTimeoutDebug != VolumeParams.IrpTimeout)
-#endif
-        VolumeParams.IrpTimeout = FspFsctlIrpTimeoutDefault;
-    }
-    if (FspFsctlTransactTimeoutMinimum > VolumeParams.TransactTimeout ||
-        VolumeParams.TransactTimeout > FspFsctlTransactTimeoutMaximum)
-        VolumeParams.TransactTimeout = FspFsctlTransactTimeoutDefault;
-
-    /* create volume guid */
-    Result = FspCreateGuid(&Guid);
-    if (!NT_SUCCESS(Result))
-        return Result;
-
-    /* prepare the device name and SDDL */
-    RtlInitUnicodeString(&DeviceSddl, L"" FSP_FSVRT_DEVICE_SDDL);
-    RtlInitEmptyUnicodeString(&DeviceName, SystemBuffer, FSP_FSCTL_CREATE_BUFFER_SIZEMIN);
-    Result = RtlUnicodeStringPrintf(&DeviceName,
-        L"\\Device\\Volume{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
-        Guid.Data1, Guid.Data2, Guid.Data3,
-        Guid.Data4[0], Guid.Data4[1], Guid.Data4[2], Guid.Data4[3],
-        Guid.Data4[4], Guid.Data4[5], Guid.Data4[6], Guid.Data4[7]);
-    ASSERT(NT_SUCCESS(Result));
-
-    FsContext2 = IrpSp->FileObject->FsContext2;
-    ExAcquireFastMutex(&FsContext2->FastMutex);
-    try
-    {
-        /* check to see if we already have a volume */
-        if (0 != FsContext2->FsvolDeviceObject)
-        {
-            Result = STATUS_ACCESS_DENIED;
-            goto exit;
-        }
-
-        /* create the volume (and virtual disk) device(s) */
-        Result = FspDeviceCreate(FspFsvolDeviceExtensionKind, 0,
-            DeviceObject->DeviceType,
-            &FsvolDeviceObject);
-        if (!NT_SUCCESS(Result))
-            goto exit;
-        if (FILE_DEVICE_DISK_FILE_SYSTEM == DeviceObject->DeviceType)
-        {
-            Result = FspDeviceCreateSecure(FspFsvrtDeviceExtensionKind, 0,
-                &DeviceName, FILE_DEVICE_VIRTUAL_DISK,
-                &DeviceSddl, &FspFsvrtDeviceClassGuid,
-                &FsvrtDeviceObject);
-            if (!NT_SUCCESS(Result))
-            {
-                FspDeviceRelease(FsvolDeviceObject);
-                goto exit;
-            }
-#pragma prefast(suppress:28175, "We are a filesystem: ok to access SectorSize")
-            FsvrtDeviceObject->SectorSize = VolumeParams.SectorSize;
-        }
-#pragma prefast(suppress:28175, "We are a filesystem: ok to access SectorSize")
-        FsvolDeviceObject->SectorSize = VolumeParams.SectorSize;
-        FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
-        FsvolDeviceExtension->FsctlDeviceObject = DeviceObject;
-        FsvolDeviceExtension->FsvrtDeviceObject = FsvrtDeviceObject;
-        FsvolDeviceExtension->VolumeParams = VolumeParams;
-        if (0 != FsvrtDeviceObject)
-            FspDeviceInitComplete(FsvrtDeviceObject);
-        FspDeviceInitComplete(FsvolDeviceObject);
-
-        /* do we need to register with MUP? */
-        if (0 == FsvrtDeviceObject)
-        {
-            Result = FsRtlRegisterUncProviderEx(&MupHandle, &DeviceName, FsvolDeviceObject, 0);
-            if (!NT_SUCCESS(Result))
-            {
-                FspDeviceRelease(FsvolDeviceObject);
-                goto exit;
-            }
-            FsvolDeviceExtension->MupHandle = MupHandle;
-        }
-
-        /* associate the new volume device with our file object */
-        FsContext2->FsvolDeviceObject = FsvolDeviceObject;
-
-        Irp->IoStatus.Information = DeviceName.Length + sizeof(WCHAR);
-        Result = STATUS_SUCCESS;
-
-    exit:;
-    }
-    finally
-    {
-        ExReleaseFastMutex(&FsContext2->FastMutex);
-    }
-
-    return Result;
-}
-
 static NTSTATUS FspFsctlMountVolume(
     PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
 {