1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
|
/* $Id: VBoxMFDriver.cpp $ */
/** @file
* VBox Mouse Filter Driver - Interface functions.
*/
/*
* Copyright (C) 2011 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#include "VBoxMF.h"
#include <VBox/VBoxGuestLib.h>
#include <iprt/initterm.h>
#include <iprt/assert.h>
#ifdef ALLOC_PRAGMA
# pragma alloc_text(INIT, DriverEntry)
#endif
/* Driver entry point */
NTSTATUS DriverEntry(IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath)
{
NOREF(RegistryPath);
PAGED_CODE();
int irc = RTR0Init(0);
if (RT_FAILURE(irc))
{
LOGREL(("failed to init IPRT (rc=%#x)", irc));
return STATUS_INTERNAL_ERROR;
}
LOGF_ENTER();
DriverObject->DriverUnload = VBoxDrvUnload;
DriverObject->DriverExtension->AddDevice = VBoxDrvAddDevice;
for (int i=0; i<=IRP_MJ_MAXIMUM_FUNCTION; ++i)
{
DriverObject->MajorFunction[i] = VBoxIrpPassthrough;
}
DriverObject->MajorFunction[IRP_MJ_INTERNAL_DEVICE_CONTROL] = VBoxIrpInternalIOCTL;
DriverObject->MajorFunction[IRP_MJ_PNP] = VBoxIrpPnP;
DriverObject->MajorFunction[IRP_MJ_POWER] = VBoxIrpPower;
NTSTATUS tmpStatus = VBoxNewProtInit();
if (!NT_SUCCESS(tmpStatus))
{
WARN(("VBoxNewProtInit failed Status (0x%x)", tmpStatus));
}
LOGF_LEAVE();
return STATUS_SUCCESS;
}
VOID VBoxDrvUnload(IN PDRIVER_OBJECT Driver)
{
NOREF(Driver);
PAGED_CODE();
LOGF_ENTER();
NTSTATUS tmpStatus = VBoxNewProtTerm();
if (!NT_SUCCESS(tmpStatus))
{
WARN(("VBoxNewProtTerm failed Status (0x%x)", tmpStatus));
}
RTR0Term();
}
#define VBOXUSB_RLTAG 'LRBV'
NTSTATUS VBoxDrvAddDevice(IN PDRIVER_OBJECT Driver, IN PDEVICE_OBJECT PDO)
{
NTSTATUS rc;
PDEVICE_OBJECT pDO, pDOParent;
PVBOXMOUSE_DEVEXT pDevExt;
PAGED_CODE();
LOGF_ENTER();
rc = IoCreateDevice(Driver, sizeof(VBOXMOUSE_DEVEXT), NULL, FILE_DEVICE_MOUSE, 0, FALSE, &pDO);
if (!NT_SUCCESS(rc))
{
WARN(("IoCreateDevice failed with %#x", rc));
return rc;
}
pDevExt = (PVBOXMOUSE_DEVEXT) pDO->DeviceExtension;
RtlZeroMemory(pDevExt, sizeof(VBOXMOUSE_DEVEXT));
IoInitializeRemoveLock(&pDevExt->RemoveLock, VBOXUSB_RLTAG, 1, 100);
rc = IoAcquireRemoveLock(&pDevExt->RemoveLock, pDevExt);
if (!NT_SUCCESS(rc))
{
WARN(("IoAcquireRemoveLock failed with %#x", rc));
IoDeleteDevice(pDO);
return rc;
}
pDOParent = IoAttachDeviceToDeviceStack(pDO, PDO);
if (!pDOParent)
{
IoReleaseRemoveLockAndWait(&pDevExt->RemoveLock, pDevExt);
WARN(("IoAttachDeviceToDeviceStack failed"));
IoDeleteDevice(pDO);
return STATUS_DEVICE_NOT_CONNECTED;
}
pDevExt->pdoMain = PDO;
pDevExt->pdoSelf = pDO;
pDevExt->pdoParent = pDOParent;
VBoxDeviceAdded(pDevExt);
pDO->Flags |= (DO_BUFFERED_IO | DO_POWER_PAGABLE);
pDO->Flags &= ~DO_DEVICE_INITIALIZING;
LOGF_LEAVE();
return rc;
}
NTSTATUS VBoxIrpPassthrough(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
{
PVBOXMOUSE_DEVEXT pDevExt;
LOGF_ENTER();
pDevExt = (PVBOXMOUSE_DEVEXT) DeviceObject->DeviceExtension;
IoSkipCurrentIrpStackLocation(Irp);
LOGF_LEAVE();
return IoCallDriver(pDevExt->pdoParent, Irp);
}
static void
VBoxServiceCB(PDEVICE_OBJECT DeviceObject, PMOUSE_INPUT_DATA InputDataStart,
PMOUSE_INPUT_DATA InputDataEnd, PULONG InputDataConsumed)
{
PVBOXMOUSE_DEVEXT pDevExt;
LOGF_ENTER();
pDevExt = (PVBOXMOUSE_DEVEXT) DeviceObject->DeviceExtension;
VBoxDrvNotifyServiceCB(pDevExt, InputDataStart, InputDataEnd, InputDataConsumed);
LOGF_LEAVE();
}
NTSTATUS VBoxIrpInternalIOCTL(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
{
PIO_STACK_LOCATION pStack;
PVBOXMOUSE_DEVEXT pDevExt;
LOGF_ENTER();
pStack = IoGetCurrentIrpStackLocation(Irp);
pDevExt = (PVBOXMOUSE_DEVEXT) DeviceObject->DeviceExtension;
LOGF(("IOCTL %08X, fn = %#04X", pStack->Parameters.DeviceIoControl.IoControlCode,
(pStack->Parameters.DeviceIoControl.IoControlCode>>2)&0xFFF));
/* Hook into connection between mouse class device and port drivers */
if (pStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_INTERNAL_MOUSE_CONNECT)
{
Irp->IoStatus.Information = 0;
if (pDevExt->OriginalConnectData.pfnServiceCB)
{
WARN(("STATUS_SHARING_VIOLATION"));
Irp->IoStatus.Status = STATUS_SHARING_VIOLATION;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Irp->IoStatus.Status;
}
if (pStack->Parameters.DeviceIoControl.InputBufferLength < sizeof(INTERNAL_MOUSE_CONNECT_DATA))
{
WARN(("STATUS_INVALID_PARAMETER"));
Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Irp->IoStatus.Status;
}
PINTERNAL_MOUSE_CONNECT_DATA pData = (PINTERNAL_MOUSE_CONNECT_DATA) pStack->Parameters.DeviceIoControl.Type3InputBuffer;
pDevExt->OriginalConnectData = *pData;
pData->pDO = pDevExt->pdoSelf;
pData->pfnServiceCB = VBoxServiceCB;
}
VBoxInformHost(pDevExt);
LOGF_LEAVE();
return VBoxIrpPassthrough(DeviceObject, Irp);
}
NTSTATUS VBoxIrpPnP(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
{
PIO_STACK_LOCATION pStack;
PVBOXMOUSE_DEVEXT pDevExt;
NTSTATUS rc;
LOGF_ENTER();
pStack = IoGetCurrentIrpStackLocation(Irp);
pDevExt = (PVBOXMOUSE_DEVEXT) DeviceObject->DeviceExtension;
switch (pStack->MinorFunction)
{
case IRP_MN_REMOVE_DEVICE:
{
LOGF(("IRP_MN_REMOVE_DEVICE"));
IoReleaseRemoveLockAndWait(&pDevExt->RemoveLock, pDevExt);
VBoxDeviceRemoved(pDevExt);
Irp->IoStatus.Status = STATUS_SUCCESS;
rc = VBoxIrpPassthrough(DeviceObject, Irp);
IoDetachDevice(pDevExt->pdoParent);
IoDeleteDevice(DeviceObject);
break;
}
default:
{
rc = VBoxIrpPassthrough(DeviceObject, Irp);
break;
}
}
if (!NT_SUCCESS(rc) && rc != STATUS_NOT_SUPPORTED)
{
WARN(("rc=%#x", rc));
}
LOGF_LEAVE();
return rc;
}
NTSTATUS VBoxIrpPower(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
{
PVBOXMOUSE_DEVEXT pDevExt;
PAGED_CODE();
LOGF_ENTER();
pDevExt = (PVBOXMOUSE_DEVEXT) DeviceObject->DeviceExtension;
PoStartNextPowerIrp(Irp);
IoSkipCurrentIrpStackLocation(Irp);
LOGF_LEAVE();
return PoCallDriver(pDevExt->pdoParent, Irp);
}
|
