dlls/wineandroid.drv/dllmain.c

   1 /*
   2  * wineandroid.drv entry points
   3  *
   4  * Copyright 2022 Jacek Caban for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include "ntstatus.h"
  23 #define WIN32_NO_STATUS
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winternl.h"
  27 #include "winioctl.h"
  28 #include "ddk/wdm.h"
  29 #include "unixlib.h"
  30 #include "wine/debug.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(android);
  33
  34
  35 extern NTSTATUS CDECL wine_ntoskrnl_main_loop( HANDLE stop_event );
  36 static HANDLE stop_event;
  37 static HANDLE thread;
  38
  39
  40 static NTSTATUS WINAPI ioctl_callback( DEVICE_OBJECT *device, IRP *irp )
  41 {
  42     struct ioctl_params params = { .irp = irp, .client_id = HandleToUlong(PsGetCurrentProcessId()) };
  43     NTSTATUS status = ANDROID_CALL( dispatch_ioctl, &params );
  44     IoCompleteRequest( irp, IO_NO_INCREMENT );
  45     return status;
  46 }
  47
  48 static NTSTATUS CALLBACK init_android_driver( DRIVER_OBJECT *driver, UNICODE_STRING *name )
  49 {
  50     static const WCHAR device_nameW[] = {'\\','D','e','v','i','c','e','\\','W','i','n','e','A','n','d','r','o','i','d',0 };
  51     static const WCHAR device_linkW[] = {'\\','?','?','\\','W','i','n','e','A','n','d','r','o','i','d',0 };
  52
  53     UNICODE_STRING nameW, linkW;
  54     DEVICE_OBJECT *device;
  55     NTSTATUS status;
  56
  57     driver->MajorFunction[IRP_MJ_DEVICE_CONTROL] = ioctl_callback;
  58
  59     RtlInitUnicodeString( &nameW, device_nameW );
  60     RtlInitUnicodeString( &linkW, device_linkW );
  61
  62     if ((status = IoCreateDevice( driver, 0, &nameW, 0, 0, FALSE, &device ))) return status;
  63     return IoCreateSymbolicLink( &linkW, &nameW );
  64 }
  65
  66 static DWORD CALLBACK device_thread( void *arg )
  67 {
  68     static const WCHAR driver_nameW[] = {'\\','D','r','i','v','e','r','\\','W','i','n','e','A','n','d','r','o','i','d',0 };
  69
  70     HANDLE start_event = arg;
  71     UNICODE_STRING nameW;
  72     NTSTATUS status;
  73     DWORD ret;
  74
  75     TRACE( "starting process %lx\n", GetCurrentProcessId() );
  76
  77     if (ANDROID_CALL( java_init, NULL )) return 0;  /* not running under Java */
  78
  79     RtlInitUnicodeString( &nameW, driver_nameW );
  80     if ((status = IoCreateDriver( &nameW, init_android_driver )))
  81     {
  82         FIXME( "failed to create driver error %lx\n", status );
  83         return status;
  84     }
  85
  86     stop_event = CreateEventW( NULL, TRUE, FALSE, NULL );
  87     SetEvent( start_event );
  88
  89     ret = wine_ntoskrnl_main_loop( stop_event );
  90
  91     ANDROID_CALL( java_uninit, NULL );
  92     return ret;
  93 }
  94
  95 static NTSTATUS WINAPI android_start_device(void *param, ULONG size)
  96 {
  97     HANDLE handles[2];
  98
  99     handles[0] = CreateEventW( NULL, TRUE, FALSE, NULL );
 100     handles[1] = thread = CreateThread( NULL, 0, device_thread, handles[0], 0, NULL );
 101     WaitForMultipleObjects( 2, handles, FALSE, INFINITE );
 102     CloseHandle( handles[0] );
 103     return HandleToULong( thread );
 104 }
 105
 106
 107 static void CALLBACK register_window_callback( ULONG_PTR arg1, ULONG_PTR arg2, ULONG_PTR arg3 )
 108 {
 109     struct register_window_params params = { .arg1 = arg1, .arg2 = arg2, .arg3 = arg3 };
 110     ANDROID_CALL( register_window, &params );
 111 }
 112
 113
 114 /***********************************************************************
 115  *       dll initialisation routine
 116  */
 117 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
 118 {
 119     struct init_params params;
 120     void **callback_table;
 121
 122     if (reason == DLL_PROCESS_ATTACH) return TRUE;
 123
 124     DisableThreadLibraryCalls( inst );
 125     if (__wine_init_unix_call()) return FALSE;
 126
 127     params.register_window_callback = register_window_callback;
 128     if (ANDROID_CALL( init, &params )) return FALSE;
 129
 130     callback_table = NtCurrentTeb()->Peb->KernelCallbackTable;
 131     callback_table[client_start_device] = android_start_device;
 132
 133     return TRUE;
 134 }