[PATCH 0/1] MR10301: hidclass.sys: Report correct device type for HID device objects.

[Jan Robert Gerigk (＠RgSg86)]

HID child PDOs were created with DeviceType 0 and no characteristics,
causing GetFileType() to return FILE_TYPE_DISK instead of
FILE_TYPE_UNKNOWN. This broke .NET applications (e.g. ETS6) that use
FileStream on HID device handles, as FileStream incorrectly treats
FILE_TYPE_DISK handles as seekable files.

Set DeviceType to FILE_DEVICE_UNKNOWN and Characteristics to
FILE_AUTOGENERATED_DEVICE_NAME to match Windows behavior, and add an
IRP_MJ_QUERY_VOLUME_INFORMATION handler to return these values.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=59512

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10301

[PATCH 1/1] hidclass.sys: Report correct device type for HID device objects.

[Robert Gerigk]

From: Robert Gerigk <[e-mail]>

HID child PDOs were created with DeviceType 0 and no characteristics,
causing GetFileType() to return FILE_TYPE_DISK instead of
FILE_TYPE_UNKNOWN. This broke .NET applications (e.g. ETS6) that use
FileStream on HID device handles, as FileStream incorrectly treats
FILE_TYPE_DISK handles as seekable files.

Set DeviceType to FILE_DEVICE_UNKNOWN and Characteristics to
FILE_AUTOGENERATED_DEVICE_NAME to match Windows behavior, and add an
IRP_MJ_QUERY_VOLUME_INFORMATION handler to return these values.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=59512
---
 dlls/hid/tests/device.c | 22 ++++++++++++++++++++++
 dlls/hidclass.sys/pnp.c | 35 ++++++++++++++++++++++++++++++++++-
 2 files changed, 56 insertions(+), 1 deletion(-)

diff --git a/dlls/hid/tests/device.c b/dlls/hid/tests/device.c
index 8b5ff7a0fe7..598d5e8467a 100644
--- a/dlls/hid/tests/device.c
+++ b/dlls/hid/tests/device.c
@@ -24,6 +24,8 @@
 #include "hidusage.h"
 #include "ddk/hidsdi.h"
 
+#include "winternl.h"
+
 #include "wine/test.h"
 
 #define READ_MAX_TIME 5000
@@ -458,9 +460,29 @@ static void test_get_input_report(void)
     HeapFree(GetProcessHeap(), 0, report);
 }
 
+static void test_device_file_type(HANDLE device)
+{
+    FILE_FS_DEVICE_INFORMATION info;
+    IO_STATUS_BLOCK io;
+    NTSTATUS status;
+    DWORD file_type;
+
+    file_type = GetFileType(device);
+    ok(file_type == FILE_TYPE_UNKNOWN, "Expected FILE_TYPE_UNKNOWN, got %lu\n", file_type);
+
+    memset(&info, 0xcc, sizeof(info));
+    memset(&io, 0xcc, sizeof(io));
+    status = NtQueryVolumeInformationFile(device, &io, &info, sizeof(info), FileFsDeviceInformation);
+    ok(status == STATUS_SUCCESS, "NtQueryVolumeInformationFile failed: %lx\n", status);
+    ok(info.DeviceType == FILE_DEVICE_UNKNOWN, "Expected FILE_DEVICE_UNKNOWN (0x22), got %#lx\n", info.DeviceType);
+    ok(info.Characteristics == FILE_AUTOGENERATED_DEVICE_NAME,
+       "Expected FILE_AUTOGENERATED_DEVICE_NAME (0x80), got %#lx\n", info.Characteristics);
+}
+
 START_TEST(device)
 {
     run_for_each_device(test_device_info);
+    run_for_each_device(test_device_file_type);
     test_read_device();
     test_get_input_report();
 }
diff --git a/dlls/hidclass.sys/pnp.c b/dlls/hidclass.sys/pnp.c
index 4774ba2b9fc..d3abbe934fc 100644
--- a/dlls/hidclass.sys/pnp.c
+++ b/dlls/hidclass.sys/pnp.c
@@ -276,7 +276,8 @@ static NTSTATUS create_child_pdos( minidriver *minidriver, DEVICE_OBJECT *device
                       fdo->base.hid.PhysicalDeviceObject );
 
         RtlInitUnicodeString(&string, pdo_name);
-        if ((status = IoCreateDevice( device->DriverObject, sizeof(*pdo), &string, 0, 0, FALSE, &child_device )))
+        if ((status = IoCreateDevice( device->DriverObject, sizeof(*pdo), &string,
+                                      FILE_DEVICE_UNKNOWN, FILE_AUTOGENERATED_DEVICE_NAME, FALSE, &child_device )))
         {
             ERR( "Failed to create child PDO, status %#lx.\n", status );
             return status;
@@ -666,6 +667,37 @@ static NTSTATUS WINAPI driver_close(DEVICE_OBJECT *device, IRP *irp)
     return pdo_close(device, irp);
 }
 
+static NTSTATUS WINAPI driver_query_volume(DEVICE_OBJECT *device, IRP *irp)
+{
+    IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
+    NTSTATUS status;
+
+    if (irpsp->Parameters.QueryVolume.FsInformationClass == FileFsDeviceInformation)
+    {
+        if (irpsp->Parameters.QueryVolume.Length < sizeof(FILE_FS_DEVICE_INFORMATION))
+        {
+            status = STATUS_BUFFER_TOO_SMALL;
+        }
+        else
+        {
+            FILE_FS_DEVICE_INFORMATION *info = irp->AssociatedIrp.SystemBuffer;
+            info->DeviceType = device->DeviceType;
+            info->Characteristics = device->Characteristics;
+            irp->IoStatus.Information = sizeof(*info);
+            status = STATUS_SUCCESS;
+        }
+    }
+    else
+    {
+        FIXME("unhandled volume info class %x\n", irpsp->Parameters.QueryVolume.FsInformationClass);
+        status = STATUS_NOT_IMPLEMENTED;
+    }
+
+    irp->IoStatus.Status = status;
+    IoCompleteRequest( irp, IO_NO_INCREMENT );
+    return status;
+}
+
 static NTSTATUS WINAPI driver_ioctl(DEVICE_OBJECT *device, IRP *irp)
 {
     return pdo_ioctl(device, irp);
@@ -715,6 +747,7 @@ NTSTATUS WINAPI HidRegisterMinidriver(HID_MINIDRIVER_REGISTRATION *registration)
     registration->DriverObject->MajorFunction[IRP_MJ_WRITE] = driver_write;
     registration->DriverObject->MajorFunction[IRP_MJ_CREATE] = driver_create;
     registration->DriverObject->MajorFunction[IRP_MJ_CLOSE] = driver_close;
+    registration->DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = driver_query_volume;
 
     driver->PNPDispatch = registration->DriverObject->MajorFunction[IRP_MJ_PNP];
     registration->DriverObject->MajorFunction[IRP_MJ_PNP] = driver_pnp;
-- 
GitLab

https://gitlab.winehq.org/wine/wine/-/merge_requests/10301