From 8f7a0c92c370cb4bf1ee6e6d7c51a3d90fe4cd48 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Bernon?= <rbernon@codeweavers.com>
Date: Wed, 18 Sep 2019 21:04:25 +0200
Subject: [PATCH] hidclass.sys: Send input message to server when HID report is
 received.

---
 dlls/hidclass.sys/device.c | 30 ++++++++++++++++++++++++++++++
 dlls/hidclass.sys/hid.h    |  1 +
 dlls/hidclass.sys/pnp.c    | 16 ++++++++++++++++
 3 files changed, 47 insertions(+)

diff --git a/dlls/hidclass.sys/device.c b/dlls/hidclass.sys/device.c
index 0e905c8322f..369d847e3c1 100644
--- a/dlls/hidclass.sys/device.c
+++ b/dlls/hidclass.sys/device.c
@@ -26,9 +26,11 @@
 #include "winuser.h"
 #include "setupapi.h"
 
+#include "wine/server.h"
 #include "wine/debug.h"
 #include "ddk/hidsdi.h"
 #include "ddk/hidtypes.h"
+#include "ddk/ntifs.h"
 #include "ddk/wdm.h"
 
 #include "initguid.h"
@@ -123,6 +125,8 @@ NTSTATUS HID_LinkDevice(DEVICE_OBJECT *device)
         return status;
     }
 
+    ext->link_handle = INVALID_HANDLE_VALUE;
+
     /* FIXME: This should probably be done in mouhid.sys. */
     if (ext->preparseData->caps.UsagePage == HID_USAGE_PAGE_GENERIC
             && ext->preparseData->caps.Usage == HID_USAGE_GENERIC_MOUSE)
@@ -207,6 +211,8 @@ void HID_DeleteDevice(DEVICE_OBJECT *device)
         IoCompleteRequest(irp, IO_NO_INCREMENT);
     }
 
+    CloseHandle(ext->link_handle);
+
     TRACE("Delete device(%p) %s\n", device, debugstr_w(ext->device_name));
     HeapFree(GetProcessHeap(), 0, ext->device_name);
     RtlFreeUnicodeString(&ext->link_name);
@@ -241,6 +247,28 @@ static NTSTATUS copy_packet_into_buffer(HID_XFER_PACKET *packet, BYTE* buffer, U
         return STATUS_BUFFER_OVERFLOW;
 }
 
+static void HID_Device_sendRawInput(DEVICE_OBJECT *device, HID_XFER_PACKET *packet)
+{
+    BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
+
+    if (ext->link_handle == INVALID_HANDLE_VALUE)
+        return;
+
+    SERVER_START_REQ(send_hardware_message)
+    {
+        req->win                  = 0;
+        req->flags                = SEND_HWMSG_RAWINPUT;
+        req->input.type           = HW_INPUT_HID;
+        req->input.hid.device     = wine_server_obj_handle(ext->link_handle);
+        req->input.hid.usage_page = ext->preparseData->caps.UsagePage;
+        req->input.hid.usage      = ext->preparseData->caps.Usage;
+        req->input.hid.length     = packet->reportBufferLen;
+        wine_server_add_data(req, packet->reportBuffer, packet->reportBufferLen);
+        wine_server_call(req);
+    }
+    SERVER_END_REQ;
+}
+
 static void HID_Device_processQueue(DEVICE_OBJECT *device)
 {
     IRP *irp;
@@ -324,6 +352,7 @@ static DWORD CALLBACK hid_device_thread(void *args)
             if (irp->IoStatus.u.Status == STATUS_SUCCESS)
             {
                 RingBuffer_Write(ext->ring_buffer, packet);
+                HID_Device_sendRawInput(device, packet);
                 HID_Device_processQueue(device);
             }
 
@@ -370,6 +399,7 @@ static DWORD CALLBACK hid_device_thread(void *args)
                 else
                     packet->reportId = 0;
                 RingBuffer_Write(ext->ring_buffer, packet);
+                HID_Device_sendRawInput(device, packet);
                 HID_Device_processQueue(device);
             }
 
diff --git a/dlls/hidclass.sys/hid.h b/dlls/hidclass.sys/hid.h
index 36d13c009d7..f12e04d7898 100644
--- a/dlls/hidclass.sys/hid.h
+++ b/dlls/hidclass.sys/hid.h
@@ -46,6 +46,7 @@ typedef struct _BASE_DEVICE_EXTENSION {
     ULONG poll_interval;
     WCHAR *device_name;
     UNICODE_STRING link_name;
+    HANDLE link_handle;
     WCHAR device_id[MAX_DEVICE_ID_LEN];
     WCHAR instance_id[MAX_DEVICE_ID_LEN];
     struct ReportRingBuffer *ring_buffer;
diff --git a/dlls/hidclass.sys/pnp.c b/dlls/hidclass.sys/pnp.c
index 1c130e8dd80..b84a358dba4 100644
--- a/dlls/hidclass.sys/pnp.c
+++ b/dlls/hidclass.sys/pnp.c
@@ -299,12 +299,28 @@ NTSTATUS WINAPI HID_PNP_Dispatch(DEVICE_OBJECT *device, IRP *irp)
         case IRP_MN_START_DEVICE:
         {
             BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
+            OBJECT_ATTRIBUTES attr;
 
             rc = minidriver->PNPDispatch(device, irp);
 
             IoSetDeviceInterfaceState(&ext->link_name, TRUE);
             if (ext->is_mouse)
                 IoSetDeviceInterfaceState(&ext->mouse_link_name, TRUE);
+
+            attr.Length = sizeof(attr);
+            attr.RootDirectory = 0;
+            attr.Attributes = OBJ_CASE_INSENSITIVE;
+            attr.ObjectName = &ext->link_name;
+            attr.SecurityDescriptor = NULL;
+            attr.SecurityQualityOfService = NULL;
+            NtOpenSymbolicLinkObject(&ext->link_handle, SYMBOLIC_LINK_QUERY, &attr);
+            ext->link_handle = ConvertToGlobalHandle(ext->link_handle);
+
+            if (ext->link_handle == INVALID_HANDLE_VALUE)
+                ERR("Failed to open link %s, error %u.\n", debugstr_w(ext->link_name.Buffer), GetLastError());
+            else
+                TRACE("Opened link handle: %p for %s\n", ext->link_handle, debugstr_w(ext->link_name.Buffer));
+
             return rc;
         }
         case IRP_MN_REMOVE_DEVICE:
-- 
2.27.0