EmulatedUSBImpl.cpp@ 98103

Last change on this file since 98103 was 98103, checked in by vboxsync, 22 months ago
Copyright year updates by scm.
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1	/* $Id: EmulatedUSBImpl.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2	/** @file
3	* Emulated USB manager implementation.
4	*/
5
6	/*
7	* Copyright (C) 2013-2023 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28	#define LOG_GROUP LOG_GROUP_MAIN_EMULATEDUSB
29	#include "LoggingNew.h"
30
31	#include "EmulatedUSBImpl.h"
32	#include "ConsoleImpl.h"
33
34	#include <VBox/vmm/pdmusb.h>
35	#include <VBox/vmm/vmmr3vtable.h>
36
37
38	/*
39	* Emulated USB webcam device instance.
40	*/
41	typedef std::map <Utf8Str, Utf8Str> EUSBSettingsMap;
42
43	typedef enum EUSBDEVICESTATUS
44	{
45	EUSBDEVICE_CREATED,
46	EUSBDEVICE_ATTACHING,
47	EUSBDEVICE_ATTACHED
48	} EUSBDEVICESTATUS;
49
50	class EUSBWEBCAM /* : public EUSBDEVICE */
51	{
52	private:
53	int32_t volatile mcRefs;
54
55	EmulatedUSB *mpEmulatedUSB;
56
57	RTUUID mUuid;
58	char mszUuid[RTUUID_STR_LENGTH];
59
60	Utf8Str mPath;
61	Utf8Str mSettings;
62
63	EUSBSettingsMap mDevSettings;
64	EUSBSettingsMap mDrvSettings;
65
66	void *mpvObject;
67
68	static DECLCALLBACK(int) emulatedWebcamAttach(PUVM pUVM, PCVMMR3VTABLE pVMM, EUSBWEBCAM pThis, const char pszDriver);
69	static DECLCALLBACK(int) emulatedWebcamDetach(PUVM pUVM, PCVMMR3VTABLE pVMM, EUSBWEBCAM *pThis);
70
71	HRESULT settingsParse(void);
72
73	~EUSBWEBCAM()
74	{
75	}
76
77	public:
78	EUSBWEBCAM()
79	:
80	mcRefs(1),
81	mpEmulatedUSB(NULL),
82	mpvObject(NULL),
83	enmStatus(EUSBDEVICE_CREATED)
84	{
85	RT_ZERO(mUuid);
86	RT_ZERO(mszUuid);
87	}
88
89	int32_t AddRef(void)
90	{
91	return ASMAtomicIncS32(&mcRefs);
92	}
93
94	void Release(void)
95	{
96	int32_t c = ASMAtomicDecS32(&mcRefs);
97	if (c == 0)
98	{
99	delete this;
100	}
101	}
102
103	HRESULT Initialize(Console *pConsole,
104	EmulatedUSB *pEmulatedUSB,
105	const com::Utf8Str *aPath,
106	const com::Utf8Str *aSettings,
107	void *pvObject);
108	HRESULT Attach(Console pConsole, PUVM pUVM, PCVMMR3VTABLE pVMM, const char pszDriver);
109	HRESULT Detach(Console *pConsole, PUVM pUVM, PCVMMR3VTABLE pVMM);
110
111	bool HasId(const char *pszId) { return RTStrCmp(pszId, mszUuid) == 0;}
112
113	void *getObjectPtr() { return mpvObject; }
114
115	EUSBDEVICESTATUS enmStatus;
116	};
117
118
119	static int emulatedWebcamInsertSettings(PCFGMNODE pConfig, PCVMMR3VTABLE pVMM, EUSBSettingsMap *pSettings)
120	{
121	for (EUSBSettingsMap::const_iterator it = pSettings->begin(); it != pSettings->end(); ++it)
122	{
123	/* Convert some well known settings for backward compatibility. */
124	int vrc;
125	if ( RTStrCmp(it->first.c_str(), "MaxPayloadTransferSize") == 0
126	\|\| RTStrCmp(it->first.c_str(), "MaxFramerate") == 0)
127	{
128	uint32_t u32 = 0;
129	vrc = RTStrToUInt32Full(it->second.c_str(), 10, &u32);
130	if (vrc == VINF_SUCCESS)
131	vrc = pVMM->pfnCFGMR3InsertInteger(pConfig, it->first.c_str(), u32);
132	else if (RT_SUCCESS(vrc)) /* VWRN_* */
133	vrc = VERR_INVALID_PARAMETER;
134	}
135	else
136	vrc = pVMM->pfnCFGMR3InsertString(pConfig, it->first.c_str(), it->second.c_str());
137	if (RT_FAILURE(vrc))
138	return vrc;
139	}
140
141	return VINF_SUCCESS;
142	}
143
144	/static/ DECLCALLBACK(int)
145	EUSBWEBCAM::emulatedWebcamAttach(PUVM pUVM, PCVMMR3VTABLE pVMM, EUSBWEBCAM pThis, const char pszDriver)
146	{
147	PCFGMNODE pInstance = pVMM->pfnCFGMR3CreateTree(pUVM);
148	PCFGMNODE pConfig;
149	int vrc = pVMM->pfnCFGMR3InsertNode(pInstance, "Config", &pConfig);
150	AssertRCReturn(vrc, vrc);
151	vrc = emulatedWebcamInsertSettings(pConfig, pVMM, &pThis->mDevSettings);
152	AssertRCReturn(vrc, vrc);
153
154	PCFGMNODE pEUSB;
155	vrc = pVMM->pfnCFGMR3InsertNode(pConfig, "EmulatedUSB", &pEUSB);
156	AssertRCReturn(vrc, vrc);
157	vrc = pVMM->pfnCFGMR3InsertString(pEUSB, "Id", pThis->mszUuid);
158	AssertRCReturn(vrc, vrc);
159
160	PCFGMNODE pLunL0;
161	vrc = pVMM->pfnCFGMR3InsertNode(pInstance, "LUN#0", &pLunL0);
162	AssertRCReturn(vrc, vrc);
163	vrc = pVMM->pfnCFGMR3InsertString(pLunL0, "Driver", pszDriver);
164	AssertRCReturn(vrc, vrc);
165	vrc = pVMM->pfnCFGMR3InsertNode(pLunL0, "Config", &pConfig);
166	AssertRCReturn(vrc, vrc);
167	vrc = pVMM->pfnCFGMR3InsertString(pConfig, "DevicePath", pThis->mPath.c_str());
168	AssertRCReturn(vrc, vrc);
169	vrc = pVMM->pfnCFGMR3InsertString(pConfig, "Id", pThis->mszUuid);
170	AssertRCReturn(vrc, vrc);
171	vrc = emulatedWebcamInsertSettings(pConfig, pVMM, &pThis->mDrvSettings);
172	AssertRCReturn(vrc, vrc);
173
174	/* pInstance will be used by PDM and deallocated on error. */
175	vrc = pVMM->pfnPDMR3UsbCreateEmulatedDevice(pUVM, "Webcam", pInstance, &pThis->mUuid, NULL);
176	LogRelFlowFunc(("PDMR3UsbCreateEmulatedDevice %Rrc\n", vrc));
177	return vrc;
178	}
179
180	/static/ DECLCALLBACK(int)
181	EUSBWEBCAM::emulatedWebcamDetach(PUVM pUVM, PCVMMR3VTABLE pVMM, EUSBWEBCAM *pThis)
182	{
183	return pVMM->pfnPDMR3UsbDetachDevice(pUVM, &pThis->mUuid);
184	}
185
186	HRESULT EUSBWEBCAM::Initialize(Console *pConsole,
187	EmulatedUSB *pEmulatedUSB,
188	const com::Utf8Str *aPath,
189	const com::Utf8Str *aSettings,
190	void *pvObject)
191	{
192	HRESULT hrc = S_OK;
193
194	int vrc = RTUuidCreate(&mUuid);
195	AssertRCReturn(vrc, pConsole->setError(vrc, EmulatedUSB::tr("Init emulated USB webcam (RTUuidCreate -> %Rrc)"), vrc));
196
197	RTStrPrintf(mszUuid, sizeof(mszUuid), "%RTuuid", &mUuid);
198	hrc = mPath.assignEx(*aPath);
199	if (SUCCEEDED(hrc))
200	{
201	hrc = mSettings.assignEx(*aSettings);
202	if (SUCCEEDED(hrc))
203	{
204	hrc = settingsParse();
205	if (SUCCEEDED(hrc))
206	{
207	mpEmulatedUSB = pEmulatedUSB;
208	mpvObject = pvObject;
209	}
210	}
211	}
212
213	return hrc;
214	}
215
216	HRESULT EUSBWEBCAM::settingsParse(void)
217	{
218	HRESULT hr = S_OK;
219
220	/* Parse mSettings string:
221	* "[dev:\|drv:]Name1=Value1;[dev:\|drv:]Name2=Value2"
222	*/
223	char *pszSrc = mSettings.mutableRaw();
224
225	if (pszSrc)
226	{
227	while (*pszSrc)
228	{
229	/* Does the setting belong to device of driver. Default is both. */
230	bool fDev = true;
231	bool fDrv = true;
232	if (RTStrNICmp(pszSrc, RT_STR_TUPLE("drv:")) == 0)
233	{
234	pszSrc += sizeof("drv:")-1;
235	fDev = false;
236	}
237	else if (RTStrNICmp(pszSrc, RT_STR_TUPLE("dev:")) == 0)
238	{
239	pszSrc += sizeof("dev:")-1;
240	fDrv = false;
241	}
242
243	char *pszEq = strchr(pszSrc, '=');
244	if (!pszEq)
245	{
246	hr = E_INVALIDARG;
247	break;
248	}
249
250	char *pszEnd = strchr(pszEq, ';');
251	if (!pszEnd)
252	pszEnd = pszEq + strlen(pszEq);
253
254	*pszEq = 0;
255	char chEnd = *pszEnd;
256	*pszEnd = 0;
257
258	/* Empty strings not allowed. */
259	if (*pszSrc != 0 && pszEq[1] != 0)
260	{
261	if (fDev)
262	mDevSettings[pszSrc] = &pszEq[1];
263	if (fDrv)
264	mDrvSettings[pszSrc] = &pszEq[1];
265	}
266
267	*pszEq = '=';
268	*pszEnd = chEnd;
269
270	pszSrc = pszEnd;
271	if (*pszSrc == ';')
272	pszSrc++;
273	}
274
275	if (SUCCEEDED(hr))
276	{
277	EUSBSettingsMap::const_iterator it;
278	for (it = mDevSettings.begin(); it != mDevSettings.end(); ++it)
279	LogRelFlowFunc(("[dev:%s] = [%s]\n", it->first.c_str(), it->second.c_str()));
280	for (it = mDrvSettings.begin(); it != mDrvSettings.end(); ++it)
281	LogRelFlowFunc(("[drv:%s] = [%s]\n", it->first.c_str(), it->second.c_str()));
282	}
283	}
284
285	return hr;
286	}
287
288	HRESULT EUSBWEBCAM::Attach(Console pConsole, PUVM pUVM, PCVMMR3VTABLE pVMM, const char pszDriver)
289	{
290	int vrc = pVMM->pfnVMR3ReqCallWaitU(pUVM, 0 /* idDstCpu (saved state, see #6232) */,
291	(PFNRT)emulatedWebcamAttach, 4,
292	pUVM, pVMM, this, pszDriver);
293	if (RT_SUCCESS(vrc))
294	return S_OK;
295	LogFlowThisFunc(("%Rrc\n", vrc));
296	return pConsole->setErrorBoth(VBOX_E_VM_ERROR, vrc, EmulatedUSB::tr("Attach emulated USB webcam (%Rrc)"), vrc);
297	}
298
299	HRESULT EUSBWEBCAM::Detach(Console *pConsole, PUVM pUVM, PCVMMR3VTABLE pVMM)
300	{
301	int vrc = pVMM->pfnVMR3ReqCallWaitU(pUVM, 0 /* idDstCpu (saved state, see #6232) */,
302	(PFNRT)emulatedWebcamDetach, 3,
303	pUVM, pVMM, this);
304	if (RT_SUCCESS(vrc))
305	return S_OK;
306	LogFlowThisFunc(("%Rrc\n", vrc));
307	return pConsole->setErrorBoth(VBOX_E_VM_ERROR, vrc, EmulatedUSB::tr("Detach emulated USB webcam (%Rrc)"), vrc);
308	}
309
310
311	/*
312	* EmulatedUSB implementation.
313	*/
314	DEFINE_EMPTY_CTOR_DTOR(EmulatedUSB)
315
316	HRESULT EmulatedUSB::FinalConstruct()
317	{
318	return BaseFinalConstruct();
319	}
320
321	void EmulatedUSB::FinalRelease()
322	{
323	uninit();
324
325	BaseFinalRelease();
326	}
327
328	/*
329	* Initializes the instance.
330	*
331	* @param pConsole The owner.
332	*/
333	HRESULT EmulatedUSB::init(ComObjPtr<Console> pConsole)
334	{
335	LogFlowThisFunc(("\n"));
336
337	ComAssertRet(!pConsole.isNull(), E_INVALIDARG);
338
339	/* Enclose the state transition NotReady->InInit->Ready */
340	AutoInitSpan autoInitSpan(this);
341	AssertReturn(autoInitSpan.isOk(), E_FAIL);
342
343	m.pConsole = pConsole;
344
345	mEmUsbIf.pvUser = this;
346	mEmUsbIf.pfnQueryEmulatedUsbDataById = EmulatedUSB::i_QueryEmulatedUsbDataById;
347
348	/* Confirm a successful initialization */
349	autoInitSpan.setSucceeded();
350
351	return S_OK;
352	}
353
354	/*
355	* Uninitializes the instance.
356	* Called either from FinalRelease() or by the parent when it gets destroyed.
357	*/
358	void EmulatedUSB::uninit()
359	{
360	LogFlowThisFunc(("\n"));
361
362	m.pConsole.setNull();
363
364	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
365	for (WebcamsMap::iterator it = m.webcams.begin(); it != m.webcams.end(); ++it)
366	{
367	EUSBWEBCAM *p = it->second;
368	if (p)
369	{
370	it->second = NULL;
371	p->Release();
372	}
373	}
374	m.webcams.clear();
375	alock.release();
376
377	/* Enclose the state transition Ready->InUninit->NotReady */
378	AutoUninitSpan autoUninitSpan(this);
379	if (autoUninitSpan.uninitDone())
380	return;
381	}
382
383	HRESULT EmulatedUSB::getWebcams(std::vector<com::Utf8Str> &aWebcams)
384	{
385	HRESULT hrc = S_OK;
386
387	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
388
389	try
390	{
391	aWebcams.resize(m.webcams.size());
392	}
393	catch (std::bad_alloc &)
394	{
395	hrc = E_OUTOFMEMORY;
396	}
397	catch (...)
398	{
399	hrc = E_FAIL;
400	}
401
402	if (SUCCEEDED(hrc))
403	{
404	size_t i;
405	WebcamsMap::const_iterator it;
406	for (i = 0, it = m.webcams.begin(); it != m.webcams.end(); ++it)
407	aWebcams[i++] = it->first;
408	}
409
410	return hrc;
411	}
412
413	PEMULATEDUSBIF EmulatedUSB::i_getEmulatedUsbIf()
414	{
415	return &mEmUsbIf;
416	}
417
418	static const Utf8Str s_pathDefault(".0");
419
420	HRESULT EmulatedUSB::webcamAttach(const com::Utf8Str &aPath,
421	const com::Utf8Str &aSettings)
422	{
423	return i_webcamAttachInternal(aPath, aSettings, "HostWebcam", NULL);
424	}
425
426	HRESULT EmulatedUSB::i_webcamAttachInternal(const com::Utf8Str &aPath,
427	const com::Utf8Str &aSettings,
428	const char *pszDriver,
429	void *pvObject)
430	{
431	HRESULT hrc = S_OK;
432
433	const Utf8Str &path = aPath.isEmpty() \|\| aPath == "."? s_pathDefault: aPath;
434
435	Console::SafeVMPtr ptrVM(m.pConsole);
436	if (ptrVM.isOk())
437	{
438	EUSBWEBCAM *p = new EUSBWEBCAM();
439	if (p)
440	{
441	hrc = p->Initialize(m.pConsole, this, &path, &aSettings, pvObject);
442	if (SUCCEEDED(hrc))
443	{
444	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
445	WebcamsMap::const_iterator it = m.webcams.find(path);
446	if (it == m.webcams.end())
447	{
448	p->AddRef();
449	try
450	{
451	m.webcams[path] = p;
452	}
453	catch (std::bad_alloc &)
454	{
455	hrc = E_OUTOFMEMORY;
456	}
457	catch (...)
458	{
459	hrc = E_FAIL;
460	}
461	p->enmStatus = EUSBDEVICE_ATTACHING;
462	}
463	else
464	{
465	hrc = E_FAIL;
466	}
467	}
468
469	if (SUCCEEDED(hrc))
470	hrc = p->Attach(m.pConsole, ptrVM.rawUVM(), ptrVM.vtable(), pszDriver);
471
472	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
473	if (SUCCEEDED(hrc))
474	p->enmStatus = EUSBDEVICE_ATTACHED;
475	else if (p->enmStatus != EUSBDEVICE_CREATED)
476	m.webcams.erase(path);
477	alock.release();
478
479	p->Release();
480	}
481	else
482	{
483	hrc = E_OUTOFMEMORY;
484	}
485	}
486	else
487	{
488	hrc = VBOX_E_INVALID_VM_STATE;
489	}
490
491	return hrc;
492	}
493
494	HRESULT EmulatedUSB::webcamDetach(const com::Utf8Str &aPath)
495	{
496	return i_webcamDetachInternal(aPath);
497	}
498
499	HRESULT EmulatedUSB::i_webcamDetachInternal(const com::Utf8Str &aPath)
500	{
501	HRESULT hrc = S_OK;
502
503	const Utf8Str &path = aPath.isEmpty() \|\| aPath == "."? s_pathDefault: aPath;
504
505	Console::SafeVMPtr ptrVM(m.pConsole);
506	if (ptrVM.isOk())
507	{
508	EUSBWEBCAM *p = NULL;
509
510	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
511	WebcamsMap::iterator it = m.webcams.find(path);
512	if (it != m.webcams.end())
513	{
514	if (it->second->enmStatus == EUSBDEVICE_ATTACHED)
515	{
516	p = it->second;
517	m.webcams.erase(it);
518	}
519	}
520	alock.release();
521
522	if (p)
523	{
524	hrc = p->Detach(m.pConsole, ptrVM.rawUVM(), ptrVM.vtable());
525	p->Release();
526	}
527	else
528	{
529	hrc = E_INVALIDARG;
530	}
531	}
532	else
533	{
534	hrc = VBOX_E_INVALID_VM_STATE;
535	}
536
537	return hrc;
538	}
539
540	/static/ DECLCALLBACK(int)
541	EmulatedUSB::eusbCallbackEMT(EmulatedUSB pThis, char pszId, uint32_t iEvent, void *pvData, uint32_t cbData)
542	{
543	LogRelFlowFunc(("id %s event %d, data %p %d\n", pszId, iEvent, pvData, cbData));
544
545	NOREF(cbData);
546
547	int vrc = VINF_SUCCESS;
548	if (iEvent == 0)
549	{
550	com::Utf8Str path;
551	HRESULT hrc = pThis->webcamPathFromId(&path, pszId);
552	if (SUCCEEDED(hrc))
553	{
554	hrc = pThis->webcamDetach(path);
555	if (FAILED(hrc))
556	{
557	vrc = VERR_INVALID_STATE;
558	}
559	}
560	else
561	{
562	vrc = VERR_NOT_FOUND;
563	}
564	}
565	else
566	{
567	vrc = VERR_INVALID_PARAMETER;
568	}
569
570	RTMemFree(pszId);
571	RTMemFree(pvData);
572
573	LogRelFlowFunc(("rc %Rrc\n", vrc));
574	return vrc;
575	}
576
577	/* static */ DECLCALLBACK(int)
578	EmulatedUSB::i_eusbCallback(void pv, const char pszId, uint32_t iEvent, const void *pvData, uint32_t cbData)
579	{
580	/* Make a copy of parameters, forward to EMT and leave the callback to not hold any lock in the device. */
581	int vrc = VINF_SUCCESS;
582	void *pvDataCopy = NULL;
583	if (cbData > 0)
584	{
585	pvDataCopy = RTMemDup(pvData, cbData);
586	if (!pvDataCopy)
587	vrc = VERR_NO_MEMORY;
588	}
589	if (RT_SUCCESS(vrc))
590	{
591	void *pvIdCopy = RTMemDup(pszId, strlen(pszId) + 1);
592	if (pvIdCopy)
593	{
594	if (RT_SUCCESS(vrc))
595	{
596	EmulatedUSB pThis = (EmulatedUSB )pv;
597	Console::SafeVMPtr ptrVM(pThis->m.pConsole);
598	if (ptrVM.isOk())
599	{
600	/* No wait. */
601	vrc = ptrVM.vtable()->pfnVMR3ReqCallNoWaitU(ptrVM.rawUVM(), 0 /* idDstCpu */,
602	(PFNRT)EmulatedUSB::eusbCallbackEMT, 5,
603	pThis, pvIdCopy, iEvent, pvDataCopy, cbData);
604	if (RT_SUCCESS(vrc))
605	return vrc;
606	}
607	else
608	vrc = VERR_INVALID_STATE;
609	}
610	RTMemFree(pvIdCopy);
611	}
612	else
613	vrc = VERR_NO_MEMORY;
614	RTMemFree(pvDataCopy);
615	}
616	return vrc;
617	}
618
619	/static/
620	DECLCALLBACK(int) EmulatedUSB::i_QueryEmulatedUsbDataById(void pvUser, const char pszId, void ppvEmUsbCb, void ppvEmUsbCbData, void **ppvObject)
621	{
622	EmulatedUSB pEmUsb = (EmulatedUSB )pvUser;
623
624	AutoReadLock alock(pEmUsb COMMA_LOCKVAL_SRC_POS);
625	WebcamsMap::const_iterator it;
626	for (it = pEmUsb->m.webcams.begin(); it != pEmUsb->m.webcams.end(); ++it)
627	{
628	EUSBWEBCAM *p = it->second;
629	if (p->HasId(pszId))
630	{
631	if (ppvEmUsbCb)
632	ppvEmUsbCb = (void )EmulatedUSB::i_eusbCallback;
633	if (ppvEmUsbCbData)
634	*ppvEmUsbCbData = pEmUsb;
635	if (ppvObject)
636	*ppvObject = p->getObjectPtr();
637
638	return VINF_SUCCESS;
639	}
640	}
641
642	return VERR_NOT_FOUND;
643	}
644
645	HRESULT EmulatedUSB::webcamPathFromId(com::Utf8Str pPath, const char pszId)
646	{
647	HRESULT hrc = S_OK;
648
649	Console::SafeVMPtr ptrVM(m.pConsole);
650	if (ptrVM.isOk())
651	{
652	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
653	WebcamsMap::const_iterator it;
654	for (it = m.webcams.begin(); it != m.webcams.end(); ++it)
655	{
656	EUSBWEBCAM *p = it->second;
657	if (p->HasId(pszId))
658	{
659	*pPath = it->first;
660	break;
661	}
662	}
663
664	if (it == m.webcams.end())
665	{
666	hrc = E_FAIL;
667	}
668	alock.release();
669	}
670	else
671	{
672	hrc = VBOX_E_INVALID_VM_STATE;
673	}
674
675	return hrc;
676	}
677
678	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

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source: vbox/trunk/src/VBox/Main/src-client/EmulatedUSBImpl.cpp@ 98103

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