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/*
* Plug and Play
*
* Copyright 2016 Sebastian Lackner
* Copyright 2016 Aric Stewart for CodeWeavers
* Copyright 2019 Zebediah Figura
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#define NONAMELESSUNION
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winioctl.h"
#include "winreg.h"
#include "winuser.h"
#include "winsvc.h"
#include "winternl.h"
#include "setupapi.h"
#include "cfgmgr32.h"
#include "dbt.h"
#include "ddk/wdm.h"
#include "ddk/ntifs.h"
#include "wine/debug.h"
#include "wine/heap.h"
#include "wine/rbtree.h"
#include "ntoskrnl_private.h"
#include "initguid.h"
DEFINE_GUID(GUID_NULL,0,0,0,0,0,0,0,0,0,0,0);
WINE_DEFAULT_DEBUG_CHANNEL(plugplay);
#define MAX_SERVICE_NAME 260
struct device_interface
{
struct wine_rb_entry entry;
UNICODE_STRING symbolic_link;
DEVICE_OBJECT *device;
GUID interface_class;
BOOL enabled;
};
static int interface_rb_compare( const void *key, const struct wine_rb_entry *entry)
{
const struct device_interface *iface = WINE_RB_ENTRY_VALUE( entry, const struct device_interface, entry );
const UNICODE_STRING *k = key;
return RtlCompareUnicodeString( k, &iface->symbolic_link, FALSE );
}
static struct wine_rb_tree device_interfaces = { interface_rb_compare };
static NTSTATUS WINAPI internal_complete( DEVICE_OBJECT *device, IRP *irp, void *context )
{
HANDLE event = context;
SetEvent( event );
return STATUS_MORE_PROCESSING_REQUIRED;
}
static NTSTATUS send_device_irp( DEVICE_OBJECT *device, IRP *irp, ULONG_PTR *info )
{
HANDLE event = CreateEventA( NULL, FALSE, FALSE, NULL );
DEVICE_OBJECT *toplevel_device;
NTSTATUS status;
irp->IoStatus.u.Status = STATUS_NOT_SUPPORTED;
IoSetCompletionRoutine( irp, internal_complete, event, TRUE, TRUE, TRUE );
toplevel_device = IoGetAttachedDeviceReference( device );
status = IoCallDriver( toplevel_device, irp );
if (status == STATUS_PENDING)
WaitForSingleObject( event, INFINITE );
status = irp->IoStatus.u.Status;
if (info)
*info = irp->IoStatus.Information;
IoCompleteRequest( irp, IO_NO_INCREMENT );
ObDereferenceObject( toplevel_device );
CloseHandle( event );
return status;
}
static NTSTATUS get_device_id( DEVICE_OBJECT *device, BUS_QUERY_ID_TYPE type, WCHAR **id )
{
IO_STACK_LOCATION *irpsp;
IO_STATUS_BLOCK irp_status;
IRP *irp;
device = IoGetAttachedDevice( device );
if (!(irp = IoBuildSynchronousFsdRequest( IRP_MJ_PNP, device, NULL, 0, NULL, NULL, &irp_status )))
return STATUS_NO_MEMORY;
irpsp = IoGetNextIrpStackLocation( irp );
irpsp->MinorFunction = IRP_MN_QUERY_ID;
irpsp->Parameters.QueryId.IdType = type;
return send_device_irp( device, irp, (ULONG_PTR *)id );
}
static NTSTATUS send_pnp_irp( DEVICE_OBJECT *device, UCHAR minor )
{
IO_STACK_LOCATION *irpsp;
IO_STATUS_BLOCK irp_status;
IRP *irp;
device = IoGetAttachedDevice( device );
if (!(irp = IoBuildSynchronousFsdRequest( IRP_MJ_PNP, device, NULL, 0, NULL, NULL, &irp_status )))
return STATUS_NO_MEMORY;
irpsp = IoGetNextIrpStackLocation( irp );
irpsp->MinorFunction = minor;
irpsp->Parameters.StartDevice.AllocatedResources = NULL;
irpsp->Parameters.StartDevice.AllocatedResourcesTranslated = NULL;
return send_device_irp( device, irp, NULL );
}
static NTSTATUS get_device_instance_id( DEVICE_OBJECT *device, WCHAR *buffer )
{
static const WCHAR backslashW[] = {'\\',0};
NTSTATUS status;
WCHAR *id;
if ((status = get_device_id( device, BusQueryDeviceID, &id )))
{
ERR("Failed to get device ID, status %#x.\n", status);
return status;
}
lstrcpyW( buffer, id );
ExFreePool( id );
if ((status = get_device_id( device, BusQueryInstanceID, &id )))
{
ERR("Failed to get instance ID, status %#x.\n", status);
return status;
}
lstrcatW( buffer, backslashW );
lstrcatW( buffer, id );
ExFreePool( id );
TRACE("Returning ID %s.\n", debugstr_w(buffer));
return STATUS_SUCCESS;
}
static NTSTATUS send_power_irp( DEVICE_OBJECT *device, DEVICE_POWER_STATE power )
{
IO_STATUS_BLOCK irp_status;
IO_STACK_LOCATION *irpsp;
IRP *irp;
device = IoGetAttachedDevice( device );
if (!(irp = IoBuildSynchronousFsdRequest( IRP_MJ_POWER, device, NULL, 0, NULL, NULL, &irp_status )))
return STATUS_NO_MEMORY;
irpsp = IoGetNextIrpStackLocation( irp );
irpsp->MinorFunction = IRP_MN_SET_POWER;
irpsp->Parameters.Power.Type = DevicePowerState;
irpsp->Parameters.Power.State.DeviceState = power;
return send_device_irp( device, irp, NULL );
}
static void load_function_driver( DEVICE_OBJECT *device, HDEVINFO set, SP_DEVINFO_DATA *sp_device )
{
static const WCHAR driverW[] = {'\\','D','r','i','v','e','r','\\',0};
WCHAR buffer[MAX_SERVICE_NAME + ARRAY_SIZE(servicesW)];
WCHAR driver[MAX_SERVICE_NAME] = {0};
DRIVER_OBJECT *driver_obj;
UNICODE_STRING string;
NTSTATUS status;
if (!SetupDiGetDeviceRegistryPropertyW( set, sp_device, SPDRP_SERVICE,
NULL, (BYTE *)driver, sizeof(driver), NULL ))
{
WARN("No driver registered for device %p.\n", device);
return;
}
lstrcpyW( buffer, servicesW );
lstrcatW( buffer, driver );
RtlInitUnicodeString( &string, buffer );
status = ZwLoadDriver( &string );
if (status != STATUS_SUCCESS && status != STATUS_IMAGE_ALREADY_LOADED)
{
ERR("Failed to load driver %s, status %#x.\n", debugstr_w(driver), status);
return;
}
lstrcpyW( buffer, driverW );
lstrcatW( buffer, driver );
RtlInitUnicodeString( &string, buffer );
if (ObReferenceObjectByName( &string, OBJ_CASE_INSENSITIVE, NULL,
0, NULL, KernelMode, NULL, (void **)&driver_obj ) != STATUS_SUCCESS)
{
ERR("Failed to locate loaded driver %s.\n", debugstr_w(driver));
return;
}
if (driver_obj->DriverExtension->AddDevice)
status = driver_obj->DriverExtension->AddDevice( driver_obj, device );
else
status = STATUS_NOT_IMPLEMENTED;
ObDereferenceObject( driver_obj );
if (status != STATUS_SUCCESS)
ERR("AddDevice failed for driver %s, status %#x.\n", debugstr_w(driver), status);
}
/* Return the total number of characters in a REG_MULTI_SZ string, including
* the final terminating null. */
static size_t sizeof_multiszW( const WCHAR *str )
{
const WCHAR *p;
for (p = str; *p; p += lstrlenW(p) + 1);
return p + 1 - str;
}
/* This does almost the same thing as UpdateDriverForPlugAndPlayDevices(),
* except that we don't know the INF path beforehand. */
static BOOL install_device_driver( DEVICE_OBJECT *device, HDEVINFO set, SP_DEVINFO_DATA *sp_device )
{
static const DWORD dif_list[] =
{
DIF_REGISTERDEVICE,
DIF_SELECTBESTCOMPATDRV,
DIF_ALLOW_INSTALL,
DIF_INSTALLDEVICEFILES,
DIF_REGISTER_COINSTALLERS,
DIF_INSTALLINTERFACES,
DIF_INSTALLDEVICE,
DIF_NEWDEVICEWIZARD_FINISHINSTALL,
};
NTSTATUS status;
unsigned int i;
WCHAR *ids;
if ((status = get_device_id( device, BusQueryHardwareIDs, &ids )) || !ids)
{
ERR("Failed to get hardware IDs, status %#x.\n", status);
return FALSE;
}
SetupDiSetDeviceRegistryPropertyW( set, sp_device, SPDRP_HARDWAREID, (BYTE *)ids,
sizeof_multiszW( ids ) * sizeof(WCHAR) );
ExFreePool( ids );
if ((status = get_device_id( device, BusQueryCompatibleIDs, &ids )) || !ids)
{
ERR("Failed to get compatible IDs, status %#x.\n", status);
return FALSE;
}
SetupDiSetDeviceRegistryPropertyW( set, sp_device, SPDRP_COMPATIBLEIDS, (BYTE *)ids,
sizeof_multiszW( ids ) * sizeof(WCHAR) );
ExFreePool( ids );
if (!SetupDiBuildDriverInfoList( set, sp_device, SPDIT_COMPATDRIVER ))
{
ERR("Failed to build compatible driver list, error %#x.\n", GetLastError());
return FALSE;
}
for (i = 0; i < ARRAY_SIZE(dif_list); ++i)
{
if (!SetupDiCallClassInstaller(dif_list[i], set, sp_device) && GetLastError() != ERROR_DI_DO_DEFAULT)
{
ERR("Install function %#x failed, error %#x.\n", dif_list[i], GetLastError());
return FALSE;
}
}
return TRUE;
}
/* Load the function driver for a newly created PDO, if one is present, and
* send IRPs to start the device. */
static void start_device( DEVICE_OBJECT *device, HDEVINFO set, SP_DEVINFO_DATA *sp_device )
{
load_function_driver( device, set, sp_device );
if (device->DriverObject)
{
send_pnp_irp( device, IRP_MN_START_DEVICE );
send_power_irp( device, PowerDeviceD0 );
}
}
static void handle_bus_relations( DEVICE_OBJECT *device )
{
static const WCHAR infpathW[] = {'I','n','f','P','a','t','h',0};
SP_DEVINFO_DATA sp_device = {sizeof(sp_device)};
WCHAR device_instance_id[MAX_DEVICE_ID_LEN];
BOOL need_driver = TRUE;
HDEVINFO set;
HKEY key;
/* We could (should?) do a full IRP_MN_QUERY_DEVICE_RELATIONS query,
* but we don't have to, we have the DEVICE_OBJECT of the new device
* so we can simply handle the process here */
if (get_device_instance_id( device, device_instance_id ))
return;
set = SetupDiCreateDeviceInfoList( NULL, NULL );
if (!SetupDiCreateDeviceInfoW( set, device_instance_id, &GUID_NULL, NULL, NULL, 0, &sp_device )
&& !SetupDiOpenDeviceInfoW( set, device_instance_id, NULL, 0, &sp_device ))
{
ERR("Failed to create or open device %s, error %#x.\n", debugstr_w(device_instance_id), GetLastError());
SetupDiDestroyDeviceInfoList( set );
return;
}
TRACE("Creating new device %s.\n", debugstr_w(device_instance_id));
/* Check if the device already has a driver registered; if not, find one
* and install it. */
key = SetupDiOpenDevRegKey( set, &sp_device, DICS_FLAG_GLOBAL, 0, DIREG_DRV, KEY_READ );
if (key != INVALID_HANDLE_VALUE)
{
if (!RegQueryValueExW( key, infpathW, NULL, NULL, NULL, NULL ))
need_driver = FALSE;
RegCloseKey( key );
}
if (need_driver && !install_device_driver( device, set, &sp_device ))
{
SetupDiDestroyDeviceInfoList( set );
return;
}
start_device( device, set, &sp_device );
SetupDiDestroyDeviceInfoList( set );
}
static void remove_device( DEVICE_OBJECT *device )
{
TRACE("Removing device %p.\n", device);
send_power_irp( device, PowerDeviceD3 );
send_pnp_irp( device, IRP_MN_SURPRISE_REMOVAL );
send_pnp_irp( device, IRP_MN_REMOVE_DEVICE );
}
/***********************************************************************
* IoInvalidateDeviceRelations (NTOSKRNL.EXE.@)
*/
void WINAPI IoInvalidateDeviceRelations( DEVICE_OBJECT *device_object, DEVICE_RELATION_TYPE type )
{
TRACE("device %p, type %#x.\n", device_object, type);
switch (type)
{
case BusRelations:
handle_bus_relations( device_object );
break;
case RemovalRelations:
remove_device( device_object );
break;
default:
FIXME("Unhandled relation %#x.\n", type);
break;
}
}
/***********************************************************************
* IoGetDeviceProperty (NTOSKRNL.EXE.@)
*/
NTSTATUS WINAPI IoGetDeviceProperty( DEVICE_OBJECT *device, DEVICE_REGISTRY_PROPERTY property,
ULONG length, void *buffer, ULONG *needed )
{
NTSTATUS status = STATUS_NOT_IMPLEMENTED;
TRACE("device %p, property %u, length %u, buffer %p, needed %p.\n",
device, property, length, buffer, needed);
switch (property)
{
case DevicePropertyEnumeratorName:
{
WCHAR *id, *ptr;
status = get_device_id( device, BusQueryInstanceID, &id );
if (status != STATUS_SUCCESS)
{
ERR("Failed to get instance ID, status %#x.\n", status);
break;
}
wcsupr( id );
ptr = wcschr( id, '\\' );
if (ptr) *ptr = 0;
*needed = sizeof(WCHAR) * (lstrlenW(id) + 1);
if (length >= *needed)
memcpy( buffer, id, *needed );
else
status = STATUS_BUFFER_TOO_SMALL;
ExFreePool( id );
break;
}
case DevicePropertyPhysicalDeviceObjectName:
{
ULONG used_len, len = length + sizeof(OBJECT_NAME_INFORMATION);
OBJECT_NAME_INFORMATION *name = HeapAlloc(GetProcessHeap(), 0, len);
HANDLE handle;
status = ObOpenObjectByPointer( device, OBJ_KERNEL_HANDLE, NULL, 0, NULL, KernelMode, &handle );
if (!status)
{
status = NtQueryObject( handle, ObjectNameInformation, name, len, &used_len );
NtClose( handle );
}
if (status == STATUS_SUCCESS)
{
/* Ensure room for NULL termination */
if (length >= name->Name.MaximumLength)
memcpy(buffer, name->Name.Buffer, name->Name.MaximumLength);
else
status = STATUS_BUFFER_TOO_SMALL;
*needed = name->Name.MaximumLength;
}
else
{
if (status == STATUS_INFO_LENGTH_MISMATCH ||
status == STATUS_BUFFER_OVERFLOW)
{
status = STATUS_BUFFER_TOO_SMALL;
*needed = used_len - sizeof(OBJECT_NAME_INFORMATION);
}
else
*needed = 0;
}
HeapFree(GetProcessHeap(), 0, name);
break;
}
default:
FIXME("Unhandled property %u.\n", property);
}
return status;
}
static NTSTATUS create_device_symlink( DEVICE_OBJECT *device, UNICODE_STRING *symlink_name )
{
UNICODE_STRING device_nameU;
WCHAR *device_name;
ULONG len = 0;
NTSTATUS ret;
ret = IoGetDeviceProperty( device, DevicePropertyPhysicalDeviceObjectName, 0, NULL, &len );
if (ret != STATUS_BUFFER_TOO_SMALL)
return ret;
device_name = heap_alloc( len );
ret = IoGetDeviceProperty( device, DevicePropertyPhysicalDeviceObjectName, len, device_name, &len );
if (ret)
{
heap_free( device_name );
return ret;
}
RtlInitUnicodeString( &device_nameU, device_name );
ret = IoCreateSymbolicLink( symlink_name, &device_nameU );
heap_free( device_name );
return ret;
}
/***********************************************************************
* IoSetDeviceInterfaceState (NTOSKRNL.EXE.@)
*/
NTSTATUS WINAPI IoSetDeviceInterfaceState( UNICODE_STRING *name, BOOLEAN enable )
{
static const WCHAR DeviceClassesW[] = {'\\','R','E','G','I','S','T','R','Y','\\',
'M','a','c','h','i','n','e','\\','S','y','s','t','e','m','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'C','o','n','t','r','o','l','\\',
'D','e','v','i','c','e','C','l','a','s','s','e','s','\\',0};
static const WCHAR controlW[] = {'C','o','n','t','r','o','l',0};
static const WCHAR linkedW[] = {'L','i','n','k','e','d',0};
static const WCHAR slashW[] = {'\\',0};
static const WCHAR hashW[] = {'#',0};
size_t namelen = name->Length / sizeof(WCHAR);
DEV_BROADCAST_DEVICEINTERFACE_W *broadcast;
struct device_interface *iface;
HANDLE iface_key, control_key;
OBJECT_ATTRIBUTES attr = {0};
struct wine_rb_entry *entry;
WCHAR *path, *refstr, *p;
UNICODE_STRING string;
DWORD data = enable;
NTSTATUS ret;
ULONG len;
TRACE("device %s, enable %u.\n", debugstr_us(name), enable);
entry = wine_rb_get( &device_interfaces, name );
if (!entry)
return STATUS_OBJECT_NAME_NOT_FOUND;
iface = WINE_RB_ENTRY_VALUE( entry, struct device_interface, entry );
if (!enable && !iface->enabled)
return STATUS_OBJECT_NAME_NOT_FOUND;
if (enable && iface->enabled)
return STATUS_OBJECT_NAME_EXISTS;
for (p = name->Buffer + 4, refstr = NULL; p < name->Buffer + namelen; p++)
if (*p == '\\') refstr = p;
if (!refstr) refstr = p;
len = lstrlenW(DeviceClassesW) + 38 + 1 + namelen + 2 + 1;
if (!(path = heap_alloc( len * sizeof(WCHAR) )))
return STATUS_NO_MEMORY;
lstrcpyW( path, DeviceClassesW );
lstrcpynW( path + lstrlenW( path ), refstr - 38, 39 );
lstrcatW( path, slashW );
p = path + lstrlenW( path );
lstrcpynW( path + lstrlenW( path ), name->Buffer, (refstr - name->Buffer) + 1 );
p[0] = p[1] = p[3] = '#';
lstrcatW( path, slashW );
lstrcatW( path, hashW );
if (refstr < name->Buffer + namelen)
lstrcpynW( path + lstrlenW( path ), refstr, name->Buffer + namelen - refstr + 1 );
attr.Length = sizeof(attr);
attr.ObjectName = &string;
RtlInitUnicodeString( &string, path );
ret = NtOpenKey( &iface_key, KEY_CREATE_SUB_KEY, &attr );
heap_free(path);
if (ret)
return ret;
attr.RootDirectory = iface_key;
RtlInitUnicodeString( &string, controlW );
ret = NtCreateKey( &control_key, KEY_SET_VALUE, &attr, 0, NULL, 0, NULL );
NtClose( iface_key );
if (ret)
return ret;
RtlInitUnicodeString( &string, linkedW );
ret = NtSetValueKey( control_key, &string, 0, REG_DWORD, &data, sizeof(data) );
if (ret)
{
NtClose( control_key );
return ret;
}
if (enable)
ret = create_device_symlink( iface->device, name );
else
ret = IoDeleteSymbolicLink( name );
if (ret)
{
NtDeleteValueKey( control_key, &string );
NtClose( control_key );
return ret;
}
iface->enabled = enable;
len = offsetof(DEV_BROADCAST_DEVICEINTERFACE_W, dbcc_name[namelen + 1]);
if ((broadcast = heap_alloc( len )))
{
broadcast->dbcc_size = len;
broadcast->dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
broadcast->dbcc_classguid = iface->interface_class;
lstrcpynW( broadcast->dbcc_name, name->Buffer, namelen + 1 );
BroadcastSystemMessageW( BSF_FORCEIFHUNG | BSF_QUERY, NULL, WM_DEVICECHANGE,
enable ? DBT_DEVICEARRIVAL : DBT_DEVICEREMOVECOMPLETE, (LPARAM)broadcast );
heap_free( broadcast );
}
return ret;
}
/***********************************************************************
* IoRegisterDeviceInterface (NTOSKRNL.EXE.@)
*/
NTSTATUS WINAPI IoRegisterDeviceInterface(DEVICE_OBJECT *device, const GUID *class_guid,
UNICODE_STRING *refstr, UNICODE_STRING *symbolic_link)
{
SP_DEVICE_INTERFACE_DATA sp_iface = {sizeof(sp_iface)};
SP_DEVINFO_DATA sp_device = {sizeof(sp_device)};
WCHAR device_instance_id[MAX_DEVICE_ID_LEN];
SP_DEVICE_INTERFACE_DETAIL_DATA_W *data;
NTSTATUS status = STATUS_SUCCESS;
UNICODE_STRING device_path;
struct device_interface *iface;
struct wine_rb_entry *entry;
DWORD required;
HDEVINFO set;
TRACE("device %p, class_guid %s, refstr %s, symbolic_link %p.\n",
device, debugstr_guid(class_guid), debugstr_us(refstr), symbolic_link);
if ((status = get_device_instance_id( device, device_instance_id )))
return status;
set = SetupDiGetClassDevsW( class_guid, NULL, NULL, DIGCF_DEVICEINTERFACE );
if (set == INVALID_HANDLE_VALUE) return STATUS_UNSUCCESSFUL;
if (!SetupDiCreateDeviceInfoW( set, device_instance_id, class_guid, NULL, NULL, 0, &sp_device )
&& !SetupDiOpenDeviceInfoW( set, device_instance_id, NULL, 0, &sp_device ))
{
ERR("Failed to create device %s, error %#x.\n", debugstr_w(device_instance_id), GetLastError());
return GetLastError();
}
if (!SetupDiCreateDeviceInterfaceW( set, &sp_device, class_guid, refstr ? refstr->Buffer : NULL, 0, &sp_iface ))
return STATUS_UNSUCCESSFUL;
required = 0;
SetupDiGetDeviceInterfaceDetailW( set, &sp_iface, NULL, 0, &required, NULL );
if (required == 0) return STATUS_UNSUCCESSFUL;
data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, required );
data->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_W);
if (!SetupDiGetDeviceInterfaceDetailW( set, &sp_iface, data, required, NULL, NULL ))
{
HeapFree( GetProcessHeap(), 0, data );
return STATUS_UNSUCCESSFUL;
}
data->DevicePath[1] = '?';
TRACE("Returning path %s.\n", debugstr_w(data->DevicePath));
RtlCreateUnicodeString( &device_path, data->DevicePath);
entry = wine_rb_get( &device_interfaces, &device_path );
if (entry)
{
iface = WINE_RB_ENTRY_VALUE( entry, struct device_interface, entry );
if (iface->enabled)
ERR("Device interface %s is still enabled.\n", debugstr_us(&iface->symbolic_link));
}
else
{
iface = heap_alloc_zero( sizeof(struct device_interface) );
RtlCreateUnicodeString(&iface->symbolic_link, data->DevicePath);
if (wine_rb_put( &device_interfaces, &iface->symbolic_link, &iface->entry ))
ERR("Failed to insert interface %s into tree.\n", debugstr_us(&iface->symbolic_link));
}
iface->device = device;
iface->interface_class = *class_guid;
if (symbolic_link)
RtlCreateUnicodeString( symbolic_link, data->DevicePath);
HeapFree( GetProcessHeap(), 0, data );
RtlFreeUnicodeString( &device_path );
return status;
}
/***********************************************************************
* PoSetPowerState (NTOSKRNL.EXE.@)
*/
POWER_STATE WINAPI PoSetPowerState( DEVICE_OBJECT *device, POWER_STATE_TYPE type, POWER_STATE state)
{
FIXME("device %p, type %u, state %u, stub!\n", device, type, state.DeviceState);
return state;
}
/*****************************************************
* PoStartNextPowerIrp (NTOSKRNL.EXE.@)
*/
void WINAPI PoStartNextPowerIrp( IRP *irp )
{
FIXME("irp %p, stub!\n", irp);
}
/*****************************************************
* PoCallDriver (NTOSKRNL.EXE.@)
*/
NTSTATUS WINAPI PoCallDriver( DEVICE_OBJECT *device, IRP *irp )
{
TRACE("device %p, irp %p.\n", device, irp);
return IoCallDriver( device, irp );
}
static DRIVER_OBJECT *pnp_manager;
struct root_pnp_device
{
WCHAR id[MAX_DEVICE_ID_LEN];
struct wine_rb_entry entry;
DEVICE_OBJECT *device;
};
static int root_pnp_devices_rb_compare( const void *key, const struct wine_rb_entry *entry )
{
const struct root_pnp_device *device = WINE_RB_ENTRY_VALUE( entry, const struct root_pnp_device, entry );
const WCHAR *k = key;
return wcsicmp( k, device->id );
}
static struct wine_rb_tree root_pnp_devices = { root_pnp_devices_rb_compare };
static NTSTATUS WINAPI pnp_manager_device_pnp( DEVICE_OBJECT *device, IRP *irp )
{
IO_STACK_LOCATION *stack = IoGetCurrentIrpStackLocation( irp );
struct root_pnp_device *root_device = device->DeviceExtension;
NTSTATUS status;
TRACE("device %p, irp %p, minor function %#x.\n", device, irp, stack->MinorFunction);
switch (stack->MinorFunction)
{
case IRP_MN_START_DEVICE:
case IRP_MN_SURPRISE_REMOVAL:
case IRP_MN_REMOVE_DEVICE:
/* Nothing to do. */
irp->IoStatus.u.Status = STATUS_SUCCESS;
break;
case IRP_MN_QUERY_ID:
{
BUS_QUERY_ID_TYPE type = stack->Parameters.QueryId.IdType;
WCHAR *id, *p;
TRACE("Received IRP_MN_QUERY_ID, type %#x.\n", type);
switch (type)
{
case BusQueryDeviceID:
p = wcsrchr( root_device->id, '\\' );
if ((id = ExAllocatePool( NonPagedPool, (p - root_device->id + 1) * sizeof(WCHAR) )))
{
memcpy( id, root_device->id, (p - root_device->id) * sizeof(WCHAR) );
id[p - root_device->id] = 0;
irp->IoStatus.Information = (ULONG_PTR)id;
irp->IoStatus.u.Status = STATUS_SUCCESS;
}
else
{
irp->IoStatus.Information = 0;
irp->IoStatus.u.Status = STATUS_NO_MEMORY;
}
break;
case BusQueryInstanceID:
p = wcsrchr( root_device->id, '\\' );
if ((id = ExAllocatePool( NonPagedPool, (wcslen( p + 1 ) + 1) * sizeof(WCHAR) )))
{
wcscpy( id, p + 1 );
irp->IoStatus.Information = (ULONG_PTR)id;
irp->IoStatus.u.Status = STATUS_SUCCESS;
}
else
{
irp->IoStatus.Information = 0;
irp->IoStatus.u.Status = STATUS_NO_MEMORY;
}
break;
default:
FIXME("Unhandled IRP_MN_QUERY_ID type %#x.\n", type);
}
break;
}
default:
FIXME("Unhandled PnP request %#x.\n", stack->MinorFunction);
}
status = irp->IoStatus.u.Status;
IoCompleteRequest( irp, IO_NO_INCREMENT );
return status;
}
static NTSTATUS WINAPI pnp_manager_driver_entry( DRIVER_OBJECT *driver, UNICODE_STRING *keypath )
{
pnp_manager = driver;
driver->MajorFunction[IRP_MJ_PNP] = pnp_manager_device_pnp;
return STATUS_SUCCESS;
}
void pnp_manager_start(void)
{
static const WCHAR driver_nameW[] = {'\\','D','r','i','v','e','r','\\','P','n','p','M','a','n','a','g','e','r',0};
UNICODE_STRING driver_nameU;
NTSTATUS status;
RtlInitUnicodeString( &driver_nameU, driver_nameW );
if ((status = IoCreateDriver( &driver_nameU, pnp_manager_driver_entry )))
ERR("Failed to create PnP manager driver, status %#x.\n", status);
}
static void destroy_root_pnp_device( struct wine_rb_entry *entry, void *context )
{
struct root_pnp_device *device = WINE_RB_ENTRY_VALUE(entry, struct root_pnp_device, entry);
remove_device( device->device );
}
void pnp_manager_stop(void)
{
wine_rb_destroy( &root_pnp_devices, destroy_root_pnp_device, NULL );
IoDeleteDriver( pnp_manager );
}
void pnp_manager_enumerate_root_devices( const WCHAR *driver_name )
{
static const WCHAR driverW[] = {'\\','D','r','i','v','e','r','\\',0};
static const WCHAR rootW[] = {'R','O','O','T',0};
WCHAR buffer[MAX_SERVICE_NAME + ARRAY_SIZE(driverW)], id[MAX_DEVICE_ID_LEN];
SP_DEVINFO_DATA sp_device = {sizeof(sp_device)};
struct root_pnp_device *pnp_device;
DEVICE_OBJECT *device;
NTSTATUS status;
unsigned int i;
HDEVINFO set;
TRACE("Searching for new root-enumerated devices for driver %s.\n", debugstr_w(driver_name));
set = SetupDiGetClassDevsW( NULL, rootW, NULL, DIGCF_ALLCLASSES );
if (set == INVALID_HANDLE_VALUE)
{
ERR("Failed to build device set, error %#x.\n", GetLastError());
return;
}
for (i = 0; SetupDiEnumDeviceInfo( set, i, &sp_device ); ++i)
{
if (!SetupDiGetDeviceRegistryPropertyW( set, &sp_device, SPDRP_SERVICE,
NULL, (BYTE *)buffer, sizeof(buffer), NULL )
|| lstrcmpiW( buffer, driver_name ))
{
continue;
}
SetupDiGetDeviceInstanceIdW( set, &sp_device, id, ARRAY_SIZE(id), NULL );
if (wine_rb_get( &root_pnp_devices, id ))
continue;
TRACE("Adding new root-enumerated device %s.\n", debugstr_w(id));
if ((status = IoCreateDevice( pnp_manager, sizeof(struct root_pnp_device), NULL,
FILE_DEVICE_CONTROLLER, FILE_AUTOGENERATED_DEVICE_NAME, FALSE, &device )))
{
ERR("Failed to create root-enumerated PnP device %s, status %#x.\n", debugstr_w(id), status);
continue;
}
pnp_device = device->DeviceExtension;
wcscpy( pnp_device->id, id );
pnp_device->device = device;
if (wine_rb_put( &root_pnp_devices, id, &pnp_device->entry ))
{
ERR("Failed to insert device %s into tree.\n", debugstr_w(id));
IoDeleteDevice( device );
continue;
}
start_device( device, set, &sp_device );
}
SetupDiDestroyDeviceInfoList(set);
}
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