[reactos] 01/01: [User32] Implement Device Event Message handler

[James Tabor]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=1e0bb664521bb7d2a3f7c2...

commit 1e0bb664521bb7d2a3f7c25acfc30f4504880935
Author:     James Tabor [e-mail]
AuthorDate: Sat Apr 11 17:41:26 2020 -0500
Commit:     James Tabor [e-mail]
CommitDate: Sat Apr 11 17:41:26 2020 -0500

[User32] Implement Device Event Message handler

Need a way to send WM_DEVICECHANGE from the Service manager application.
    Next step is to process it in the Client/Server Run-time Subsystem.
    See CORE-16492.
---
 sdk/include/reactos/subsys/win/winmsg.h |  9 ++++++
 win32ss/user/user32/include/user32.h    |  1 +
 win32ss/user/user32/misc/stubs.c        | 53 ++++++++++++++++++++++++++++++---
 3 files changed, 59 insertions(+), 4 deletions(-)

diff --git a/sdk/include/reactos/subsys/win/winmsg.h b/sdk/include/reactos/subsys/win/winmsg.h
index e445331eba3..df6aa389e1e 100644
--- a/sdk/include/reactos/subsys/win/winmsg.h
+++ b/sdk/include/reactos/subsys/win/winmsg.h
@@ -87,6 +87,14 @@ typedef struct _USER_CREATE_SYSTEM_THREAD
     BOOL bRemote;
 } USER_CREATE_SYSTEM_THREAD, *PUSER_CREATE_SYSTEM_THREAD;

+typedef struct _USER_DEVICE_EVENT_MSG {
+    HWND hwnd;
+    WPARAM wParam;
+    LPARAM lParam;
+    DWORD Data;
+    ULONG_PTR Result;
+} USER_DEVICE_EVENT_MSG, *PUSER_DEVICE_EVENT_MSG;
+
 typedef struct _USER_API_MESSAGE
 {
     PORT_MESSAGE Header;
@@ -104,6 +112,7 @@ typedef struct _USER_API_MESSAGE
         USER_REGISTER_SERVICES_PROCESS RegisterServicesProcessRequest;
         USER_REGISTER_LOGON_PROCESS RegisterLogonProcessRequest;
         USER_CREATE_SYSTEM_THREAD CreateSystemThreadRequest;
+        USER_DEVICE_EVENT_MSG DeviceEventMsg;
     } Data;
 } USER_API_MESSAGE, *PUSER_API_MESSAGE;

diff --git a/win32ss/user/user32/include/user32.h b/win32ss/user/user32/include/user32.h
index 4993f4694a2..56415399ffc 100644
--- a/win32ss/user/user32/include/user32.h
+++ b/win32ss/user/user32/include/user32.h
@@ -51,6 +51,7 @@
 /* CSRSS Header */
 #include <csr/csr.h>
 #include <win/winmsg.h>
+#include <psdk/dbt.h>

/* WINE Headers */
 #include <wine/unicode.h>
diff --git a/win32ss/user/user32/misc/stubs.c b/win32ss/user/user32/misc/stubs.c
index a04ca5eddb9..8199c0222f7 100644
--- a/win32ss/user/user32/misc/stubs.c
+++ b/win32ss/user/user32/misc/stubs.c
@@ -508,12 +508,57 @@ DestroyReasons(PVOID Pointer)
     return FALSE;
 }

-BOOL
+NTSTATUS
 WINAPI
-DeviceEventWorker(DWORD dw1, DWORD dw2, DWORD dw3, DWORD dw4, DWORD dw5)
+DeviceEventWorker(HWND hwnd, WPARAM wParam, LPARAM lParam, DWORD Data, ULONG_PTR *uResult)
 {
-    UNIMPLEMENTED;
-    return FALSE;
+    USER_API_MESSAGE ApiMessage;
+    PUSER_DEVICE_EVENT_MSG pusem = &ApiMessage.Data.DeviceEventMsg;
+
+    pusem->hwnd = hwnd;
+    pusem->wParam = wParam;
+    pusem->lParam = lParam;
+    pusem->Data = Data;
+    pusem->Result = 0;
+
+    TRACE("DeviceEventWorker : hwnd %p, wParam %d, lParam %d, Data %d, uResult %p\n", hwnd, wParam, lParam, Data, uResult);
+
+    if ( lParam == 0 )
+    {
+        CsrClientCallServer( (PCSR_API_MESSAGE)&ApiMessage,
+                              NULL,
+                              CSR_CREATE_API_NUMBER( USERSRV_SERVERDLL_INDEX, UserpDeviceEvent ),
+                              sizeof(*pusem) );
+    }
+    else
+    {
+        PCSR_CAPTURE_BUFFER pcsrcb = NULL;
+        PDEV_BROADCAST_HDR pdev_br = (PDEV_BROADCAST_HDR)lParam;
+        ULONG BufferSize = pdev_br->dbch_size;
+
+        pcsrcb = CsrAllocateCaptureBuffer( 1, BufferSize );
+
+        if ( !pcsrcb )
+        {
+            return STATUS_NO_MEMORY;
+        }
+
+        CsrCaptureMessageBuffer( pcsrcb, (PVOID)lParam, BufferSize, (PVOID*)&pusem->lParam );
+
+        CsrClientCallServer( (PCSR_API_MESSAGE)&ApiMessage,
+                              pcsrcb,
+                              CSR_CREATE_API_NUMBER( USERSRV_SERVERDLL_INDEX, UserpDeviceEvent ),
+                              sizeof(*pusem) );
+
+        CsrFreeCaptureBuffer( pcsrcb );
+    }
+
+    if (NT_SUCCESS(ApiMessage.Status))
+    {
+        *uResult = pusem->Result;
+    }
+
+    return ApiMessage.Status;
 }

BOOL