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
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
|
/* $Id: USBProxyServiceWindows.cpp $ */
/** @file
* VirtualBox USB Proxy Service, Windows Specialization.
*/
/*
* Copyright (C) 2005-2012 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.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include "USBProxyService.h"
#include "Logging.h"
#include <VBox/usb.h>
#include <VBox/err.h>
#include <iprt/string.h>
#include <iprt/alloc.h>
#include <iprt/assert.h>
#include <iprt/file.h>
#include <iprt/err.h>
#include <VBox/usblib.h>
/**
* Initialize data members.
*/
USBProxyServiceWindows::USBProxyServiceWindows(Host *aHost)
: USBProxyService(aHost), mhEventInterrupt(INVALID_HANDLE_VALUE)
{
LogFlowThisFunc(("aHost=%p\n", aHost));
}
/**
* Initializes the object (called right after construction).
*
* @returns S_OK on success and non-fatal failures, some COM error otherwise.
*/
HRESULT USBProxyServiceWindows::init(void)
{
/*
* Create the semaphore (considered fatal).
*/
mhEventInterrupt = CreateEvent(NULL, FALSE, FALSE, NULL);
AssertReturn(mhEventInterrupt != INVALID_HANDLE_VALUE, E_FAIL);
/*
* Initialize the USB lib and stuff.
*/
int rc = USBLibInit();
if (RT_SUCCESS(rc))
{
/*
* Start the poller thread.
*/
rc = start();
if (RT_SUCCESS(rc))
{
LogFlowThisFunc(("returns successfully\n"));
return S_OK;
}
USBLibTerm();
}
CloseHandle(mhEventInterrupt);
mhEventInterrupt = INVALID_HANDLE_VALUE;
LogFlowThisFunc(("returns failure!!! (rc=%Rrc)\n", rc));
mLastError = rc;
return S_OK;
}
/**
* Stop all service threads and free the device chain.
*/
USBProxyServiceWindows::~USBProxyServiceWindows()
{
LogFlowThisFunc(("\n"));
/*
* Stop the service.
*/
if (isActive())
stop();
if (mhEventInterrupt != INVALID_HANDLE_VALUE)
CloseHandle(mhEventInterrupt);
mhEventInterrupt = INVALID_HANDLE_VALUE;
/*
* Terminate the library...
*/
int rc = USBLibTerm();
AssertRC(rc);
}
void *USBProxyServiceWindows::insertFilter(PCUSBFILTER aFilter)
{
AssertReturn(aFilter, NULL);
LogFlow(("USBProxyServiceWindows::insertFilter()\n"));
void *pvId = USBLibAddFilter(aFilter);
LogFlow(("USBProxyServiceWindows::insertFilter(): returning pvId=%p\n", pvId));
return pvId;
}
void USBProxyServiceWindows::removeFilter(void *aID)
{
LogFlow(("USBProxyServiceWindows::removeFilter(): id=%p\n", aID));
AssertReturnVoid(aID);
USBLibRemoveFilter(aID);
}
int USBProxyServiceWindows::captureDevice(HostUSBDevice *aDevice)
{
/*
* Check preconditions.
*/
AssertReturn(aDevice, VERR_GENERAL_FAILURE);
AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
LogFlowThisFunc(("aDevice=%s\n", aDevice->getName().c_str()));
Assert(aDevice->getUnistate() == kHostUSBDeviceState_Capturing);
/*
* Create a one-shot ignore filter for the device
* and trigger a re-enumeration of it.
*/
USBFILTER Filter;
USBFilterInit(&Filter, USBFILTERTYPE_ONESHOT_CAPTURE);
initFilterFromDevice(&Filter, aDevice);
Log(("USBFILTERIDX_PORT=%#x\n", USBFilterGetNum(&Filter, USBFILTERIDX_PORT)));
Log(("USBFILTERIDX_BUS=%#x\n", USBFilterGetNum(&Filter, USBFILTERIDX_BUS)));
void *pvId = USBLibAddFilter(&Filter);
if (!pvId)
{
AssertMsgFailed(("Add one-shot Filter failed\n"));
return VERR_GENERAL_FAILURE;
}
int rc = USBLibRunFilters();
if (!RT_SUCCESS(rc))
{
AssertMsgFailed(("Run Filters failed\n"));
USBLibRemoveFilter(pvId);
return rc;
}
return VINF_SUCCESS;
}
int USBProxyServiceWindows::releaseDevice(HostUSBDevice *aDevice)
{
/*
* Check preconditions.
*/
AssertReturn(aDevice, VERR_GENERAL_FAILURE);
AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
LogFlowThisFunc(("aDevice=%s\n", aDevice->getName().c_str()));
Assert(aDevice->getUnistate() == kHostUSBDeviceState_ReleasingToHost);
/*
* Create a one-shot ignore filter for the device
* and trigger a re-enumeration of it.
*/
USBFILTER Filter;
USBFilterInit(&Filter, USBFILTERTYPE_ONESHOT_IGNORE);
initFilterFromDevice(&Filter, aDevice);
Log(("USBFILTERIDX_PORT=%#x\n", USBFilterGetNum(&Filter, USBFILTERIDX_PORT)));
Log(("USBFILTERIDX_BUS=%#x\n", USBFilterGetNum(&Filter, USBFILTERIDX_BUS)));
void *pvId = USBLibAddFilter(&Filter);
if (!pvId)
{
AssertMsgFailed(("Add one-shot Filter failed\n"));
return VERR_GENERAL_FAILURE;
}
int rc = USBLibRunFilters();
if (!RT_SUCCESS(rc))
{
AssertMsgFailed(("Run Filters failed\n"));
USBLibRemoveFilter(pvId);
return rc;
}
return VINF_SUCCESS;
}
bool USBProxyServiceWindows::updateDeviceState(HostUSBDevice *aDevice, PUSBDEVICE aUSBDevice, bool *aRunFilters, SessionMachine **aIgnoreMachine)
{
AssertReturn(aDevice, false);
AssertReturn(!aDevice->isWriteLockOnCurrentThread(), false);
/* Nothing special here so far, so fall back on parent */
return USBProxyService::updateDeviceState(aDevice, aUSBDevice, aRunFilters, aIgnoreMachine);
/// @todo remove?
#if 0
/*
* We're only called in the 'existing device' state, so if there is a pending async
* operation we can check if it completed here and suppress state changes if it hasn't.
*/
/* TESTME */
if (aDevice->isStatePending())
{
bool fRc = aDevice->updateState(aUSBDevice);
if (fRc)
{
if (aDevice->state() != aDevice->pendingState())
fRc = false;
}
return fRc;
}
/* fall back on parent. */
return USBProxyService::updateDeviceState(aDevice, aUSBDevice, aRunFilters, aIgnoreMachine);
#endif
}
int USBProxyServiceWindows::wait(unsigned aMillies)
{
return USBLibWaitChange(aMillies);
}
int USBProxyServiceWindows::interruptWait(void)
{
return USBLibInterruptWaitChange();
}
/**
* Gets a list of all devices the VM can grab
*/
PUSBDEVICE USBProxyServiceWindows::getDevices(void)
{
PUSBDEVICE pDevices = NULL;
uint32_t cDevices = 0;
Log(("USBProxyServiceWindows::getDevices\n"));
USBLibGetDevices(&pDevices, &cDevices);
return pDevices;
}
|
