Zebediah Figura : ntoskrnl.exe: Dispatch user IRPs to the top of the device stack.
Alexandre Julliard
julliard at winehq.org
Thu Jun 6 17:05:19 CDT 2019
Module: wine
Branch: master
Commit: 4820d9d76ca2dba20c264354f776ed6633df0817
URL: https://source.winehq.org/git/wine.git/?a=commit;h=4820d9d76ca2dba20c264354f776ed6633df0817
Author: Zebediah Figura <z.figura12 at gmail.com>
Date: Thu Jun 6 11:12:51 2019 -0400
ntoskrnl.exe: Dispatch user IRPs to the top of the device stack.
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/ntoskrnl.exe/ntoskrnl.c | 12 ++++++-----
dlls/ntoskrnl.exe/tests/driver.c | 44 ++++++++++++++++++++++++++++++--------
dlls/ntoskrnl.exe/tests/driver.h | 1 +
dlls/ntoskrnl.exe/tests/ntoskrnl.c | 11 ++++++++--
include/ddk/ntifs.h | 1 +
5 files changed, 53 insertions(+), 16 deletions(-)
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index cf4d8cb..ec24e08 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -516,6 +516,8 @@ static NTSTATUS dispatch_create( struct dispatch_context *context )
file->Size = sizeof(*file);
file->DeviceObject = device;
+ device = IoGetAttachedDevice( device );
+
if (!(irp = IoAllocateIrp( device->StackSize, FALSE ))) return STATUS_NO_MEMORY;
irpsp = IoGetNextIrpStackLocation( irp );
@@ -550,7 +552,7 @@ static NTSTATUS dispatch_close( struct dispatch_context *context )
if (!file) return STATUS_INVALID_HANDLE;
- device = file->DeviceObject;
+ device = IoGetAttachedDevice( file->DeviceObject );
TRACE( "device %p file %p\n", device, file );
@@ -590,7 +592,7 @@ static NTSTATUS dispatch_read( struct dispatch_context *context )
if (!file) return STATUS_INVALID_HANDLE;
- device = file->DeviceObject;
+ device = IoGetAttachedDevice( file->DeviceObject );
TRACE( "device %p file %p size %u\n", device, file, out_size );
@@ -630,7 +632,7 @@ static NTSTATUS dispatch_write( struct dispatch_context *context )
if (!file) return STATUS_INVALID_HANDLE;
- device = file->DeviceObject;
+ device = IoGetAttachedDevice( file->DeviceObject );
TRACE( "device %p file %p size %u\n", device, file, context->in_size );
@@ -665,7 +667,7 @@ static NTSTATUS dispatch_flush( struct dispatch_context *context )
if (!file) return STATUS_INVALID_HANDLE;
- device = file->DeviceObject;
+ device = IoGetAttachedDevice( file->DeviceObject );
TRACE( "device %p file %p\n", device, file );
@@ -697,7 +699,7 @@ static NTSTATUS dispatch_ioctl( struct dispatch_context *context )
if (!file) return STATUS_INVALID_HANDLE;
- device = file->DeviceObject;
+ device = IoGetAttachedDevice( file->DeviceObject );
TRACE( "ioctl %x device %p file %p in_size %u out_size %u\n",
context->params.ioctl.code, device, file, context->in_size, out_size );
diff --git a/dlls/ntoskrnl.exe/tests/driver.c b/dlls/ntoskrnl.exe/tests/driver.c
index 468b183..f5801a5 100644
--- a/dlls/ntoskrnl.exe/tests/driver.c
+++ b/dlls/ntoskrnl.exe/tests/driver.c
@@ -34,12 +34,15 @@
#include "driver.h"
-static const WCHAR driver_device[] = {'\\','D','e','v','i','c','e',
- '\\','W','i','n','e','T','e','s','t','D','r','i','v','e','r',0};
+static const WCHAR device_name[] = {'\\','D','e','v','i','c','e',
+ '\\','W','i','n','e','T','e','s','t','D','r','i','v','e','r',0};
+static const WCHAR upper_name[] = {'\\','D','e','v','i','c','e',
+ '\\','W','i','n','e','T','e','s','t','U','p','p','e','r',0};
static const WCHAR driver_link[] = {'\\','D','o','s','D','e','v','i','c','e','s',
'\\','W','i','n','e','T','e','s','t','D','r','i','v','e','r',0};
static DRIVER_OBJECT *driver_obj;
+static DEVICE_OBJECT *lower_device, *upper_device;
static HANDLE okfile;
static LONG successes;
@@ -234,10 +237,11 @@ static void test_irp_struct(IRP *irp, DEVICE_OBJECT *device)
{
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
+ ok(device == upper_device, "Expected device %p, got %p.\n", upper_device, device);
ok(last_created_file != NULL, "last_created_file = NULL\n");
ok(irpsp->FileObject == last_created_file, "FileObject != last_created_file\n");
- ok(irpsp->DeviceObject == device, "unexpected DeviceObject\n");
- ok(irpsp->FileObject->DeviceObject == device, "unexpected FileObject->DeviceObject\n");
+ ok(irpsp->DeviceObject == upper_device, "unexpected DeviceObject\n");
+ ok(irpsp->FileObject->DeviceObject == lower_device, "unexpected FileObject->DeviceObject\n");
ok(!irp->UserEvent, "UserEvent = %p\n", irp->UserEvent);
ok(irp->Tail.Overlay.Thread == (PETHREAD)KeGetCurrentThread(),
"IRP thread is not the current thread\n");
@@ -1591,7 +1595,7 @@ static NTSTATUS main_test(DEVICE_OBJECT *device, IRP *irp, IO_STACK_LOCATION *st
if (main_test_work_item) return STATUS_UNEXPECTED_IO_ERROR;
- main_test_work_item = IoAllocateWorkItem(device);
+ main_test_work_item = IoAllocateWorkItem(lower_device);
ok(main_test_work_item != NULL, "main_test_work_item = NULL\n");
IoQueueWorkItem(main_test_work_item, main_test_task, DelayedWorkQueue, irp);
@@ -1687,6 +1691,10 @@ static NTSTATUS WINAPI driver_IoControl(DEVICE_OBJECT *device, IRP *irp)
case IOCTL_WINETEST_GET_CANCEL_COUNT:
status = get_cancel_count(irp, stack, &irp->IoStatus.Information);
break;
+ case IOCTL_WINETEST_DETACH:
+ IoDetachDevice(lower_device);
+ status = STATUS_SUCCESS;
+ break;
default:
break;
}
@@ -1703,6 +1711,7 @@ static NTSTATUS WINAPI driver_IoControl(DEVICE_OBJECT *device, IRP *irp)
static NTSTATUS WINAPI driver_FlushBuffers(DEVICE_OBJECT *device, IRP *irp)
{
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation(irp);
+ ok(device == lower_device, "Expected device %p, got %p.\n", lower_device, device);
ok(irpsp->DeviceObject == device, "device != DeviceObject\n");
ok(irp->Tail.Overlay.Thread == (PETHREAD)KeGetCurrentThread(),
"IRP thread is not the current thread\n");
@@ -1726,13 +1735,13 @@ static VOID WINAPI driver_Unload(DRIVER_OBJECT *driver)
RtlInitUnicodeString(&linkW, driver_link);
IoDeleteSymbolicLink(&linkW);
- IoDeleteDevice(driver->DeviceObject);
+ IoDeleteDevice(upper_device);
+ IoDeleteDevice(lower_device);
}
NTSTATUS WINAPI DriverEntry(DRIVER_OBJECT *driver, PUNICODE_STRING registry)
{
UNICODE_STRING nameW, linkW;
- DEVICE_OBJECT *device;
NTSTATUS status;
DbgPrint("loading driver\n");
@@ -1748,12 +1757,29 @@ NTSTATUS WINAPI DriverEntry(DRIVER_OBJECT *driver, PUNICODE_STRING registry)
driver->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = driver_FlushBuffers;
driver->MajorFunction[IRP_MJ_CLOSE] = driver_Close;
- RtlInitUnicodeString(&nameW, driver_device);
+ RtlInitUnicodeString(&nameW, device_name);
RtlInitUnicodeString(&linkW, driver_link);
if (!(status = IoCreateDevice(driver, 0, &nameW, FILE_DEVICE_UNKNOWN,
- FILE_DEVICE_SECURE_OPEN, FALSE, &device)))
+ FILE_DEVICE_SECURE_OPEN, FALSE, &lower_device)))
+ {
status = IoCreateSymbolicLink(&linkW, &nameW);
+ lower_device->Flags &= ~DO_DEVICE_INITIALIZING;
+ }
+
+ if (!status)
+ {
+ RtlInitUnicodeString(&nameW, upper_name);
+
+ status = IoCreateDevice(driver, 0, &nameW, FILE_DEVICE_UNKNOWN,
+ FILE_DEVICE_SECURE_OPEN, FALSE, &upper_device);
+ }
+
+ if (!status)
+ {
+ IoAttachDeviceToDeviceStack(upper_device, lower_device);
+ upper_device->Flags &= ~DO_DEVICE_INITIALIZING;
+ }
return status;
}
diff --git a/dlls/ntoskrnl.exe/tests/driver.h b/dlls/ntoskrnl.exe/tests/driver.h
index 1e75529..d5ff09a 100644
--- a/dlls/ntoskrnl.exe/tests/driver.h
+++ b/dlls/ntoskrnl.exe/tests/driver.h
@@ -28,6 +28,7 @@
#define IOCTL_WINETEST_RESET_CANCEL CTL_CODE(FILE_DEVICE_UNKNOWN, 0x803, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_WINETEST_TEST_CANCEL CTL_CODE(FILE_DEVICE_UNKNOWN, 0x804, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_WINETEST_GET_CANCEL_COUNT CTL_CODE(FILE_DEVICE_UNKNOWN, 0x805, METHOD_BUFFERED, FILE_ANY_ACCESS)
+#define IOCTL_WINETEST_DETACH CTL_CODE(FILE_DEVICE_UNKNOWN, 0x806, METHOD_BUFFERED, FILE_ANY_ACCESS)
static const char teststr[] = "Wine is not an emulator";
diff --git a/dlls/ntoskrnl.exe/tests/ntoskrnl.c b/dlls/ntoskrnl.exe/tests/ntoskrnl.c
index 43418f3..19eeca2 100644
--- a/dlls/ntoskrnl.exe/tests/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/tests/ntoskrnl.c
@@ -63,8 +63,6 @@ static void unload_driver(SC_HANDLE service)
{
SERVICE_STATUS status;
- CloseHandle(device);
-
ControlService(service, SERVICE_CONTROL_STOP, &status);
while (status.dwCurrentState == SERVICE_STOP_PENDING)
{
@@ -343,6 +341,8 @@ START_TEST(ntoskrnl)
{
char filename[MAX_PATH], filename2[MAX_PATH];
SC_HANDLE service, service2;
+ DWORD written;
+ BOOL ret;
HMODULE hntdll = GetModuleHandleA("ntdll.dll");
pRtlDosPathNameToNtPathName_U = (void *)GetProcAddress(hntdll, "RtlDosPathNameToNtPathName_U");
@@ -368,6 +368,13 @@ START_TEST(ntoskrnl)
test_overlapped();
test_load_driver(service2);
+ /* We need a separate ioctl to call IoDetachDevice(); calling it in the
+ * driver unload routine causes a live-lock. */
+ ret = DeviceIoControl(device, IOCTL_WINETEST_DETACH, NULL, 0, NULL, 0, &written, NULL);
+ ok(ret, "DeviceIoControl failed: %u\n", GetLastError());
+
+ CloseHandle(device);
+
unload_driver(service2);
unload_driver(service);
ok(DeleteFileA(filename), "DeleteFile failed: %u\n", GetLastError());
diff --git a/include/ddk/ntifs.h b/include/ddk/ntifs.h
index acdd232..b287b06 100644
--- a/include/ddk/ntifs.h
+++ b/include/ddk/ntifs.h
@@ -130,6 +130,7 @@ typedef struct _FS_FILTER_CALLBACKS
} FS_FILTER_CALLBACKS, *PFS_FILTER_CALLBACKS;
BOOLEAN WINAPI FsRtlIsNameInExpression(PUNICODE_STRING, PUNICODE_STRING, BOOLEAN, PWCH);
+DEVICE_OBJECT * WINAPI IoGetAttachedDevice(DEVICE_OBJECT*);
NTSTATUS WINAPI ObOpenObjectByPointer(void*,ULONG,PACCESS_STATE,ACCESS_MASK,POBJECT_TYPE,KPROCESSOR_MODE,HANDLE*);
NTSTATUS WINAPI ObQueryNameString(PVOID,POBJECT_NAME_INFORMATION,ULONG,PULONG);
BOOLEAN WINAPI PsIsSystemThread(PETHREAD);
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