[PATCH v3 2/4] ntoskrnl.exe: Add a stub PnP manager driver.
Zebediah Figura
zfigura at codeweavers.com
Tue Jun 11 18:53:39 CDT 2019
From: Zebediah Figura <z.figura12 at gmail.com>
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
---
dlls/ntoskrnl.exe/ntoskrnl.c | 5 ++++
dlls/ntoskrnl.exe/ntoskrnl_private.h | 3 +++
dlls/ntoskrnl.exe/pnp.c | 36 ++++++++++++++++++++++++++++
3 files changed, 44 insertions(+)
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index a0812dc7c96..2fccadcacb3 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -854,6 +854,8 @@ NTSTATUS CDECL wine_ntoskrnl_main_loop( HANDLE stop_event )
PsInitialSystemProcess = IoGetCurrentProcess();
request_thread = GetCurrentThreadId();
+ pnp_manager_start();
+
handles[0] = stop_event;
handles[1] = manager;
@@ -921,6 +923,9 @@ NTSTATUS CDECL wine_ntoskrnl_main_loop( HANDLE stop_event )
}
done:
+ /* Native PnP drivers expect that all of their devices will be removed when
+ * their unload routine is called, so we must stop the PnP manager first. */
+ pnp_manager_stop();
wine_rb_destroy( &wine_drivers, unload_driver, NULL );
return status;
}
diff --git a/dlls/ntoskrnl.exe/ntoskrnl_private.h b/dlls/ntoskrnl.exe/ntoskrnl_private.h
index 2823a1cd4f1..1c5952f7c10 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl_private.h
+++ b/dlls/ntoskrnl.exe/ntoskrnl_private.h
@@ -76,6 +76,9 @@ extern POBJECT_TYPE SeTokenObjectType;
void ObReferenceObject( void *obj ) DECLSPEC_HIDDEN;
+void pnp_manager_start(void) DECLSPEC_HIDDEN;
+void pnp_manager_stop(void) DECLSPEC_HIDDEN;
+
static const WCHAR servicesW[] = {'\\','R','e','g','i','s','t','r','y',
'\\','M','a','c','h','i','n','e',
'\\','S','y','s','t','e','m',
diff --git a/dlls/ntoskrnl.exe/pnp.c b/dlls/ntoskrnl.exe/pnp.c
index b8bdf93e54b..fc99928a247 100644
--- a/dlls/ntoskrnl.exe/pnp.c
+++ b/dlls/ntoskrnl.exe/pnp.c
@@ -3,6 +3,7 @@
*
* 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
@@ -750,3 +751,38 @@ POWER_STATE WINAPI PoSetPowerState( DEVICE_OBJECT *device, POWER_STATE_TYPE type
FIXME("device %p, type %u, state %u, stub!\n", device, type, state.DeviceState);
return state;
}
+
+static DRIVER_OBJECT *pnp_manager;
+
+static NTSTATUS WINAPI pnp_manager_device_pnp( DEVICE_OBJECT *device, IRP *irp )
+{
+ IO_STACK_LOCATION *stack = IoGetCurrentIrpStackLocation( irp );
+
+ TRACE("device %p, irp %p, minor function %#x.\n", device, irp, stack->MinorFunction);
+
+ IoCompleteRequest( irp, IO_NO_INCREMENT );
+ return irp->IoStatus.u.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);
+}
+
+void pnp_manager_stop(void)
+{
+ IoDeleteDriver( pnp_manager );
+}
--
2.20.1
More information about the wine-devel
mailing list