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winedevice: Add support for loading/unloading drivers asynchronously. 

Signed-off-by: Sebastian Lackner <sebastian@fds-team.de>
Signed-off-by: Aric Stewart <aric@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Sebastian Lackner 2016-08-23 10:13:42 +02:00 committed by Alexandre Julliard
parent a7e9fa6253
commit 440482d2ef
1 changed files with 156 additions and 56 deletions
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212
programs/winedevice/device.c
View File

@ -2,6 +2,7 @@
* Service process to load a kernel driver
*
* Copyright 2007 Alexandre Julliard
* Copyright 2016 Sebastian Lackner
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -43,7 +44,9 @@ WINE_DECLARE_DEBUG_CHANNEL(relay);
extern NTSTATUS CDECL wine_ntoskrnl_main_loop( HANDLE stop_event );
static SERVICE_STATUS_HANDLE service_handle;
static PTP_CLEANUP_GROUP cleanup_group;
static SC_HANDLE manager_handle;
static BOOL shutdown_in_progress;
static HANDLE stop_event;
struct wine_driver
@ -57,6 +60,15 @@ struct wine_driver
static struct wine_rb_tree wine_drivers;
static CRITICAL_SECTION drivers_cs;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &drivers_cs,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": drivers_cs") }
};
static CRITICAL_SECTION drivers_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
static void *wine_drivers_rb_alloc( size_t size )
{
return HeapAlloc( GetProcessHeap(), 0, size );
@ -307,29 +319,23 @@ static void set_service_status( SERVICE_STATUS_HANDLE handle, DWORD state, DWORD
SetServiceStatus( handle, &status );
}
/* call the driver unload function */
static void unload_driver( struct wine_rb_entry *entry, void *context )
static void WINAPI async_unload_driver( PTP_CALLBACK_INSTANCE instance, void *context )
{
struct wine_driver *driver = WINE_RB_ENTRY_VALUE( entry, struct wine_driver, entry );
struct wine_driver *driver = context;
DRIVER_OBJECT *driver_obj = driver->driver_obj;
LDR_MODULE *ldr = driver_obj->DriverSection;
LDR_MODULE *ldr;
TRACE( "stopping driver %s\n", wine_dbgstr_w(driver->name) );
set_service_status( driver->handle, SERVICE_STOP_PENDING, 0 );
if (WINE_TRACE_ON(relay))
WINE_DPRINTF( "%04x:Call driver unload %p (obj=%p)\n", GetCurrentThreadId(),
driver_obj->DriverUnload, driver_obj );
if (driver_obj->DriverUnload)
{
if (WINE_TRACE_ON(relay))
WINE_DPRINTF( "%04x:Call driver unload %p (obj=%p)\n", GetCurrentThreadId(),
driver_obj->DriverUnload, driver_obj );
driver_obj->DriverUnload( driver_obj );
driver_obj->DriverUnload( driver_obj );
if (WINE_TRACE_ON(relay))
WINE_DPRINTF( "%04x:Ret driver unload %p (obj=%p)\n", GetCurrentThreadId(),
driver_obj->DriverUnload, driver_obj );
}
if (WINE_TRACE_ON(relay))
WINE_DPRINTF( "%04x:Ret driver unload %p (obj=%p)\n", GetCurrentThreadId(),
driver_obj->DriverUnload, driver_obj );
ldr = driver_obj->DriverSection;
FreeLibrary( ldr->BaseAddress );
IoDeleteDriver( driver_obj );
ObDereferenceObject( driver_obj );
@ -339,15 +345,102 @@ static void unload_driver( struct wine_rb_entry *entry, void *context )
HeapFree( GetProcessHeap(), 0, driver );
}
/* call the driver unload function */
static NTSTATUS unload_driver( struct wine_rb_entry *entry, BOOL destroy )
{
TP_CALLBACK_ENVIRON environment;
struct wine_driver *driver = WINE_RB_ENTRY_VALUE( entry, struct wine_driver, entry );
DRIVER_OBJECT *driver_obj = driver->driver_obj;
if (!driver_obj)
{
TRACE( "driver %s has not finished loading yet\n", wine_dbgstr_w(driver->name) );
return STATUS_UNSUCCESSFUL;
}
if (!driver_obj->DriverUnload)
{
TRACE( "driver %s does not support unloading\n", wine_dbgstr_w(driver->name) );
return STATUS_UNSUCCESSFUL;
}
TRACE( "stopping driver %s\n", wine_dbgstr_w(driver->name) );
set_service_status( driver->handle, SERVICE_STOP_PENDING, 0 );
if (destroy)
{
async_unload_driver( NULL, driver );
return STATUS_SUCCESS;
}
wine_rb_remove( &wine_drivers, driver->name );
memset( &environment, 0, sizeof(environment) );
environment.Version = 1;
environment.CleanupGroup = cleanup_group;
/* don't block the service control handler */
if (!TrySubmitThreadpoolCallback( async_unload_driver, driver, &environment ))
async_unload_driver( NULL, driver );
return STATUS_SUCCESS;
}
static void WINAPI async_create_driver( PTP_CALLBACK_INSTANCE instance, void *context )
{
static const WCHAR driverW[] = {'\\','D','r','i','v','e','r','\\',0};
struct wine_driver *driver = context;
DRIVER_OBJECT *driver_obj;
UNICODE_STRING drv_name;
NTSTATUS status;
WCHAR *str;
if (!(str = HeapAlloc( GetProcessHeap(), 0, sizeof(driverW) + strlenW(driver->name)*sizeof(WCHAR) )))
goto error;
lstrcpyW( str, driverW);
lstrcatW( str, driver->name );
RtlInitUnicodeString( &drv_name, str );
status = IoCreateDriver( &drv_name, init_driver );
if (status != STATUS_SUCCESS)
{
ERR( "failed to create driver %s: %08x\n", debugstr_w(driver->name), status );
RtlFreeUnicodeString( &drv_name );
goto error;
}
status = ObReferenceObjectByName( &drv_name, OBJ_CASE_INSENSITIVE, NULL,
0, NULL, KernelMode, NULL, (void **)&driver_obj );
RtlFreeUnicodeString( &drv_name );
if (status != STATUS_SUCCESS)
{
ERR( "failed to locate driver %s: %08x\n", debugstr_w(driver->name), status );
goto error;
}
EnterCriticalSection( &drivers_cs );
driver->driver_obj = driver_obj;
set_service_status( driver->handle, SERVICE_RUNNING,
SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN );
LeaveCriticalSection( &drivers_cs );
return;
error:
EnterCriticalSection( &drivers_cs );
wine_rb_remove( &wine_drivers, driver->name );
LeaveCriticalSection( &drivers_cs );
set_service_status( driver->handle, SERVICE_STOPPED, 0 );
CloseServiceHandle( (void *)driver->handle );
HeapFree( GetProcessHeap(), 0, driver );
}
/* load a driver and notify services.exe about the status change */
static NTSTATUS create_driver( const WCHAR *driver_name )
{
static const WCHAR driverW[] = {'\\','D','r','i','v','e','r','\\',0};
TP_CALLBACK_ENVIRON environment;
struct wine_driver *driver;
UNICODE_STRING drv_name;
NTSTATUS status;
DWORD length;
WCHAR *str;
length = FIELD_OFFSET( struct wine_driver, name[strlenW(driver_name) + 1] );
if (!(driver = HeapAlloc( GetProcessHeap(), 0, length )))
@ -369,45 +462,45 @@ static NTSTATUS create_driver( const WCHAR *driver_name )
return STATUS_UNSUCCESSFUL;
}
if (!(str = HeapAlloc( GetProcessHeap(), 0, sizeof(driverW) + strlenW(driver_name)*sizeof(WCHAR) )))
{
status = STATUS_NO_MEMORY;
goto error;
}
TRACE( "starting driver %s\n", wine_dbgstr_w(driver_name) );
set_service_status( driver->handle, SERVICE_START_PENDING, 0 );
lstrcpyW( str, driverW);
lstrcatW( str, driver_name );
RtlInitUnicodeString( &drv_name, str );
memset( &environment, 0, sizeof(environment) );
environment.Version = 1;
environment.CleanupGroup = cleanup_group;
status = IoCreateDriver( &drv_name, init_driver );
if (status == STATUS_SUCCESS)
{
status = ObReferenceObjectByName( &drv_name, OBJ_CASE_INSENSITIVE, NULL,
0, NULL, KernelMode, NULL, (void **)&driver->driver_obj );
if (status != STATUS_SUCCESS)
{
ERR("Failed to locate loaded driver (%s)\n", wine_dbgstr_w(driver_name));
}
}
/* don't block the service control handler */
if (!TrySubmitThreadpoolCallback( async_create_driver, driver, &environment ))
async_create_driver( NULL, driver );
RtlFreeUnicodeString( &drv_name );
return STATUS_SUCCESS;
}
if (status == STATUS_SUCCESS)
{
set_service_status( driver->handle, SERVICE_RUNNING,
SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN );
return STATUS_SUCCESS;
}
static void wine_drivers_rb_destroy( struct wine_rb_entry *entry, void *context )
{
unload_driver( entry, TRUE );
}
error:
set_service_status( driver->handle, SERVICE_STOPPED, 0 );
CloseServiceHandle( (void *)driver->handle );
wine_rb_remove( &wine_drivers, driver_name );
HeapFree( GetProcessHeap(), 0, driver );
return status;
static void WINAPI async_shutdown_drivers( PTP_CALLBACK_INSTANCE instance, void *context )
{
CloseThreadpoolCleanupGroupMembers( cleanup_group, FALSE, NULL );
EnterCriticalSection( &drivers_cs );
wine_rb_destroy( &wine_drivers, wine_drivers_rb_destroy, NULL );
LeaveCriticalSection( &drivers_cs );
SetEvent( stop_event );
}
static void shutdown_drivers( void )
{
if (shutdown_in_progress) return;
/* don't block the service control handler */
if (!TrySubmitThreadpoolCallback( async_shutdown_drivers, NULL, NULL ))
async_shutdown_drivers( NULL, NULL );
shutdown_in_progress = TRUE;
}
static DWORD WINAPI service_handler( DWORD ctrl, DWORD event_type, LPVOID event_data, LPVOID context )
@ -420,7 +513,7 @@ static DWORD WINAPI service_handler( DWORD ctrl, DWORD event_type, LPVOID event_
case SERVICE_CONTROL_SHUTDOWN:
WINE_TRACE( "shutting down %s\n", wine_dbgstr_w(driver_name) );
set_service_status( service_handle, SERVICE_STOP_PENDING, 0 );
SetEvent( stop_event );
shutdown_drivers();
return NO_ERROR;
default:
WINE_FIXME( "got service ctrl %x for %s\n", ctrl, wine_dbgstr_w(driver_name) );
@ -433,22 +526,29 @@ static DWORD WINAPI service_handler( DWORD ctrl, DWORD event_type, LPVOID event_
static void WINAPI ServiceMain( DWORD argc, LPWSTR *argv )
{
const WCHAR *driver_name = argv[0];
NTSTATUS status;
if (wine_rb_init( &wine_drivers, &wine_drivers_rb_functions ))
return;
if (!(stop_event = CreateEventW( NULL, TRUE, FALSE, NULL )))
return;
if (!(cleanup_group = CreateThreadpoolCleanupGroup()))
return;
if (!(manager_handle = OpenSCManagerW( NULL, NULL, SC_MANAGER_CONNECT )))
return;
if (!(service_handle = RegisterServiceCtrlHandlerExW( driver_name, service_handler, (void *)driver_name )))
return;
if (create_driver( driver_name ) == STATUS_SUCCESS)
EnterCriticalSection( &drivers_cs );
status = create_driver( driver_name );
LeaveCriticalSection( &drivers_cs );
if (status == STATUS_SUCCESS)
wine_ntoskrnl_main_loop( stop_event );
wine_rb_destroy( &wine_drivers, unload_driver, NULL );
set_service_status( service_handle, SERVICE_STOPPED, 0 );
CloseServiceHandle( manager_handle );
CloseThreadpoolCleanupGroup( cleanup_group );
CloseHandle( stop_event );
}