USBControllerImpl.cpp@ 35242

Last change on this file since 35242 was 33708, checked in by vboxsync, 14 years ago
Main: Eliminate the last bits of VirtualBoxBaseWithChildrenNEXT. It won't be missed.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 35.6 KB

Line
1	/* $Id: USBControllerImpl.cpp 33708 2010-11-02 18:46:46Z vboxsync $ */
2	/** @file
3	* Implementation of IUSBController.
4	*/
5
6	/*
7	* Copyright (C) 2006-2010 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	#include "USBControllerImpl.h"
19
20	#include "Global.h"
21	#include "MachineImpl.h"
22	#include "VirtualBoxImpl.h"
23	#include "HostImpl.h"
24	#ifdef VBOX_WITH_USB
25	# include "USBDeviceImpl.h"
26	# include "HostUSBDeviceImpl.h"
27	# include "USBProxyService.h"
28	# include "USBDeviceFilterImpl.h"
29	#endif
30
31	#include <iprt/string.h>
32	#include <iprt/cpp/utils.h>
33
34	#include <VBox/err.h>
35	#include <VBox/settings.h>
36
37	#include <algorithm>
38
39	#include "AutoStateDep.h"
40	#include "AutoCaller.h"
41	#include "Logging.h"
42
43	// defines
44	/////////////////////////////////////////////////////////////////////////////
45
46	typedef std::list< ComObjPtr<USBDeviceFilter> > DeviceFilterList;
47
48	struct BackupableUSBData
49	{
50	BackupableUSBData()
51	: fEnabled(false),
52	fEnabledEHCI(false)
53	{ }
54
55	BOOL fEnabled;
56	BOOL fEnabledEHCI;
57	};
58
59	struct USBController::Data
60	{
61	Data(Machine *pMachine)
62	: pParent(pMachine),
63	pHost(pMachine->getVirtualBox()->host())
64	{ }
65
66	~Data()
67	{};
68
69	Machine * const pParent;
70	Host * const pHost;
71
72	// peer machine's USB controller
73	const ComObjPtr<USBController> pPeer;
74
75	Backupable<BackupableUSBData> bd;
76	#ifdef VBOX_WITH_USB
77	// the following fields need special backup/rollback/commit handling,
78	// so they cannot be a part of BackupableData
79	Backupable<DeviceFilterList> llDeviceFilters;
80	#endif
81	};
82
83
84
85	// constructor / destructor
86	/////////////////////////////////////////////////////////////////////////////
87
88	DEFINE_EMPTY_CTOR_DTOR (USBController)
89
90	HRESULT USBController::FinalConstruct()
91	{
92	return S_OK;
93	}
94
95	void USBController::FinalRelease()
96	{
97	uninit();
98	}
99
100	// public initializer/uninitializer for internal purposes only
101	/////////////////////////////////////////////////////////////////////////////
102
103	/**
104	* Initializes the USB controller object.
105	*
106	* @returns COM result indicator.
107	* @param aParent Pointer to our parent object.
108	*/
109	HRESULT USBController::init(Machine *aParent)
110	{
111	LogFlowThisFunc(("aParent=%p\n", aParent));
112
113	ComAssertRet(aParent, E_INVALIDARG);
114
115	/* Enclose the state transition NotReady->InInit->Ready */
116	AutoInitSpan autoInitSpan(this);
117	AssertReturn(autoInitSpan.isOk(), E_FAIL);
118
119	m = new Data(aParent);
120
121	/* mPeer is left null */
122
123	m->bd.allocate();
124	#ifdef VBOX_WITH_USB
125	m->llDeviceFilters.allocate();
126	#endif
127
128	/* Confirm a successful initialization */
129	autoInitSpan.setSucceeded();
130
131	return S_OK;
132	}
133
134	/**
135	* Initializes the USB controller object given another USB controller object
136	* (a kind of copy constructor). This object shares data with
137	* the object passed as an argument.
138	*
139	* @returns COM result indicator.
140	* @param aParent Pointer to our parent object.
141	* @param aPeer The object to share.
142	*
143	* @note This object must be destroyed before the original object
144	* it shares data with is destroyed.
145	*/
146	HRESULT USBController::init(Machine aParent, USBController aPeer)
147	{
148	LogFlowThisFunc(("aParent=%p, aPeer=%p\n", aParent, aPeer));
149
150	ComAssertRet(aParent && aPeer, E_INVALIDARG);
151
152	/* Enclose the state transition NotReady->InInit->Ready */
153	AutoInitSpan autoInitSpan(this);
154	AssertReturn(autoInitSpan.isOk(), E_FAIL);
155
156	m = new Data(aParent);
157
158	unconst(m->pPeer) = aPeer;
159
160	AutoWriteLock thatlock(aPeer COMMA_LOCKVAL_SRC_POS);
161	m->bd.share(aPeer->m->bd);
162
163	#ifdef VBOX_WITH_USB
164	/* create copies of all filters */
165	m->llDeviceFilters.allocate();
166	DeviceFilterList::const_iterator it = aPeer->m->llDeviceFilters->begin();
167	while (it != aPeer->m->llDeviceFilters->end())
168	{
169	ComObjPtr<USBDeviceFilter> filter;
170	filter.createObject();
171	filter->init(this, *it);
172	m->llDeviceFilters->push_back(filter);
173	++ it;
174	}
175	#endif /* VBOX_WITH_USB */
176
177	/* Confirm a successful initialization */
178	autoInitSpan.setSucceeded();
179
180	return S_OK;
181	}
182
183
184	/**
185	* Initializes the USB controller object given another guest object
186	* (a kind of copy constructor). This object makes a private copy of data
187	* of the original object passed as an argument.
188	*/
189	HRESULT USBController::initCopy(Machine aParent, USBController aPeer)
190	{
191	LogFlowThisFunc(("aParent=%p, aPeer=%p\n", aParent, aPeer));
192
193	ComAssertRet(aParent && aPeer, E_INVALIDARG);
194
195	/* Enclose the state transition NotReady->InInit->Ready */
196	AutoInitSpan autoInitSpan(this);
197	AssertReturn(autoInitSpan.isOk(), E_FAIL);
198
199	m = new Data(aParent);
200
201	/* mPeer is left null */
202
203	AutoWriteLock thatlock(aPeer COMMA_LOCKVAL_SRC_POS);
204	m->bd.attachCopy(aPeer->m->bd);
205
206	#ifdef VBOX_WITH_USB
207	/* create private copies of all filters */
208	m->llDeviceFilters.allocate();
209	DeviceFilterList::const_iterator it = aPeer->m->llDeviceFilters->begin();
210	while (it != aPeer->m->llDeviceFilters->end())
211	{
212	ComObjPtr<USBDeviceFilter> filter;
213	filter.createObject();
214	filter->initCopy(this, *it);
215	m->llDeviceFilters->push_back(filter);
216	++ it;
217	}
218	#endif /* VBOX_WITH_USB */
219
220	/* Confirm a successful initialization */
221	autoInitSpan.setSucceeded();
222
223	return S_OK;
224	}
225
226
227	/**
228	* Uninitializes the instance and sets the ready flag to FALSE.
229	* Called either from FinalRelease() or by the parent when it gets destroyed.
230	*/
231	void USBController::uninit()
232	{
233	LogFlowThisFunc(("\n"));
234
235	/* Enclose the state transition Ready->InUninit->NotReady */
236	AutoUninitSpan autoUninitSpan(this);
237	if (autoUninitSpan.uninitDone())
238	return;
239
240	#ifdef VBOX_WITH_USB
241	// uninit all device filters on the list (it's a standard std::list not an ObjectsList
242	// so we must uninit() manually)
243	for (DeviceFilterList::iterator it = m->llDeviceFilters->begin();
244	it != m->llDeviceFilters->end();
245	++it)
246	(*it)->uninit();
247
248	m->llDeviceFilters.free();
249	#endif
250	m->bd.free();
251
252	unconst(m->pPeer) = NULL;
253	unconst(m->pParent) = NULL;
254
255	delete m;
256	m = NULL;
257	}
258
259
260	// IUSBController properties
261	/////////////////////////////////////////////////////////////////////////////
262
263	STDMETHODIMP USBController::COMGETTER(Enabled) (BOOL *aEnabled)
264	{
265	CheckComArgOutPointerValid(aEnabled);
266
267	AutoCaller autoCaller(this);
268	if (FAILED(autoCaller.rc())) return autoCaller.rc();
269
270	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
271
272	*aEnabled = m->bd->fEnabled;
273
274	return S_OK;
275	}
276
277
278	STDMETHODIMP USBController::COMSETTER(Enabled) (BOOL aEnabled)
279	{
280	LogFlowThisFunc(("aEnabled=%RTbool\n", aEnabled));
281
282	AutoCaller autoCaller(this);
283	if (FAILED(autoCaller.rc())) return autoCaller.rc();
284
285	/* the machine needs to be mutable */
286	AutoMutableStateDependency adep(m->pParent);
287	if (FAILED(adep.rc())) return adep.rc();
288
289	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
290
291	if (m->bd->fEnabled != aEnabled)
292	{
293	m->bd.backup();
294	m->bd->fEnabled = aEnabled;
295
296	// leave the lock for safety
297	alock.release();
298
299	AutoWriteLock mlock(m->pParent COMMA_LOCKVAL_SRC_POS);
300	m->pParent->setModified(Machine::IsModified_USB);
301	mlock.release();
302
303	m->pParent->onUSBControllerChange();
304	}
305
306	return S_OK;
307	}
308
309	STDMETHODIMP USBController::COMGETTER(EnabledEhci) (BOOL *aEnabled)
310	{
311	CheckComArgOutPointerValid(aEnabled);
312
313	AutoCaller autoCaller(this);
314	if (FAILED(autoCaller.rc())) return autoCaller.rc();
315
316	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
317
318	*aEnabled = m->bd->fEnabledEHCI;
319
320	return S_OK;
321	}
322
323	STDMETHODIMP USBController::COMSETTER(EnabledEhci) (BOOL aEnabled)
324	{
325	LogFlowThisFunc(("aEnabled=%RTbool\n", aEnabled));
326
327	AutoCaller autoCaller(this);
328	if (FAILED(autoCaller.rc())) return autoCaller.rc();
329
330	/* the machine needs to be mutable */
331	AutoMutableStateDependency adep(m->pParent);
332	if (FAILED(adep.rc())) return adep.rc();
333
334	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
335
336	if (m->bd->fEnabledEHCI != aEnabled)
337	{
338	m->bd.backup();
339	m->bd->fEnabledEHCI = aEnabled;
340
341	// leave the lock for safety
342	alock.release();
343
344	AutoWriteLock mlock(m->pParent COMMA_LOCKVAL_SRC_POS);
345	m->pParent->setModified(Machine::IsModified_USB);
346	mlock.release();
347
348	m->pParent->onUSBControllerChange();
349	}
350
351	return S_OK;
352	}
353
354	STDMETHODIMP USBController::COMGETTER(ProxyAvailable) (BOOL *aEnabled)
355	{
356	CheckComArgOutPointerValid(aEnabled);
357
358	AutoCaller autoCaller(this);
359	if (FAILED(autoCaller.rc())) return autoCaller.rc();
360
361	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
362
363	#ifdef VBOX_WITH_USB
364	*aEnabled = true;
365	#else
366	*aEnabled = false;
367	#endif
368
369	return S_OK;
370	}
371
372	STDMETHODIMP USBController::COMGETTER(USBStandard) (USHORT *aUSBStandard)
373	{
374	CheckComArgOutPointerValid(aUSBStandard);
375
376	AutoCaller autoCaller(this);
377	if (FAILED(autoCaller.rc())) return autoCaller.rc();
378
379	/* not accessing data -- no need to lock */
380
381	/** @todo This is no longer correct */
382	*aUSBStandard = 0x0101;
383
384	return S_OK;
385	}
386
387	#ifndef VBOX_WITH_USB
388	/**
389	* Fake class for build without USB.
390	* We need an empty collection & enum for deviceFilters, that's all.
391	*/
392	class ATL_NO_VTABLE USBDeviceFilter :
393	public VirtualBoxBase,
394	VBOX_SCRIPTABLE_IMPL(IUSBDeviceFilter)
395	{
396	public:
397	DECLARE_NOT_AGGREGATABLE(USBDeviceFilter)
398	DECLARE_PROTECT_FINAL_CONSTRUCT()
399	BEGIN_COM_MAP(USBDeviceFilter)
400	COM_INTERFACE_ENTRY(ISupportErrorInfo)
401	COM_INTERFACE_ENTRY(IUSBDeviceFilter)
402	END_COM_MAP()
403
404	DECLARE_EMPTY_CTOR_DTOR (USBDeviceFilter)
405
406	// IUSBDeviceFilter properties
407	STDMETHOD(COMGETTER(Name)) (BSTR *aName);
408	STDMETHOD(COMSETTER(Name)) (IN_BSTR aName);
409	STDMETHOD(COMGETTER(Active)) (BOOL *aActive);
410	STDMETHOD(COMSETTER(Active)) (BOOL aActive);
411	STDMETHOD(COMGETTER(VendorId)) (BSTR *aVendorId);
412	STDMETHOD(COMSETTER(VendorId)) (IN_BSTR aVendorId);
413	STDMETHOD(COMGETTER(ProductId)) (BSTR *aProductId);
414	STDMETHOD(COMSETTER(ProductId)) (IN_BSTR aProductId);
415	STDMETHOD(COMGETTER(Revision)) (BSTR *aRevision);
416	STDMETHOD(COMSETTER(Revision)) (IN_BSTR aRevision);
417	STDMETHOD(COMGETTER(Manufacturer)) (BSTR *aManufacturer);
418	STDMETHOD(COMSETTER(Manufacturer)) (IN_BSTR aManufacturer);
419	STDMETHOD(COMGETTER(Product)) (BSTR *aProduct);
420	STDMETHOD(COMSETTER(Product)) (IN_BSTR aProduct);
421	STDMETHOD(COMGETTER(SerialNumber)) (BSTR *aSerialNumber);
422	STDMETHOD(COMSETTER(SerialNumber)) (IN_BSTR aSerialNumber);
423	STDMETHOD(COMGETTER(Port)) (BSTR *aPort);
424	STDMETHOD(COMSETTER(Port)) (IN_BSTR aPort);
425	STDMETHOD(COMGETTER(Remote)) (BSTR *aRemote);
426	STDMETHOD(COMSETTER(Remote)) (IN_BSTR aRemote);
427	STDMETHOD(COMGETTER(MaskedInterfaces)) (ULONG *aMaskedIfs);
428	STDMETHOD(COMSETTER(MaskedInterfaces)) (ULONG aMaskedIfs);
429	};
430	#endif /* !VBOX_WITH_USB */
431
432
433	STDMETHODIMP USBController::COMGETTER(DeviceFilters) (ComSafeArrayOut(IUSBDeviceFilter *, aDevicesFilters))
434	{
435	#ifdef VBOX_WITH_USB
436	CheckComArgOutSafeArrayPointerValid(aDevicesFilters);
437
438	AutoCaller autoCaller(this);
439	if (FAILED(autoCaller.rc())) return autoCaller.rc();
440
441	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
442
443	SafeIfaceArray<IUSBDeviceFilter> collection (*m->llDeviceFilters.data());
444	collection.detachTo(ComSafeArrayOutArg(aDevicesFilters));
445
446	return S_OK;
447	#else
448	NOREF(aDevicesFilters);
449	# ifndef RT_OS_WINDOWS
450	NOREF(aDevicesFiltersSize);
451	# endif
452	ReturnComNotImplemented();
453	#endif
454	}
455
456	// IUSBController methods
457	/////////////////////////////////////////////////////////////////////////////
458
459	STDMETHODIMP USBController::CreateDeviceFilter (IN_BSTR aName,
460	IUSBDeviceFilter **aFilter)
461	{
462	#ifdef VBOX_WITH_USB
463	CheckComArgOutPointerValid(aFilter);
464
465	CheckComArgStrNotEmptyOrNull(aName);
466
467	AutoCaller autoCaller(this);
468	if (FAILED(autoCaller.rc())) return autoCaller.rc();
469
470	/* the machine needs to be mutable */
471	AutoMutableStateDependency adep(m->pParent);
472	if (FAILED(adep.rc())) return adep.rc();
473
474	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
475
476	ComObjPtr<USBDeviceFilter> filter;
477	filter.createObject();
478	HRESULT rc = filter->init (this, aName);
479	ComAssertComRCRetRC (rc);
480	rc = filter.queryInterfaceTo(aFilter);
481	AssertComRCReturnRC(rc);
482
483	return S_OK;
484	#else
485	NOREF(aName);
486	NOREF(aFilter);
487	ReturnComNotImplemented();
488	#endif
489	}
490
491	STDMETHODIMP USBController::InsertDeviceFilter(ULONG aPosition,
492	IUSBDeviceFilter *aFilter)
493	{
494	#ifdef VBOX_WITH_USB
495
496	CheckComArgNotNull(aFilter);
497
498	AutoCaller autoCaller(this);
499	if (FAILED(autoCaller.rc())) return autoCaller.rc();
500
501	/* the machine needs to be mutable */
502	AutoMutableStateDependency adep(m->pParent);
503	if (FAILED(adep.rc())) return adep.rc();
504
505	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
506
507	ComObjPtr<USBDeviceFilter> filter = static_cast<USBDeviceFilter*>(aFilter);
508	// @todo r=dj make sure the input object is actually from us
509	// if (!filter)
510	// return setError (E_INVALIDARG,
511	// tr ("The given USB device filter is not created within "
512	// "this VirtualBox instance"));
513
514	if (filter->mInList)
515	return setError(VBOX_E_INVALID_OBJECT_STATE,
516	tr("The given USB device filter is already in the list"));
517
518	/* backup the list before modification */
519	m->llDeviceFilters.backup();
520
521	/* iterate to the position... */
522	DeviceFilterList::iterator it;
523	if (aPosition < m->llDeviceFilters->size())
524	{
525	it = m->llDeviceFilters->begin();
526	std::advance (it, aPosition);
527	}
528	else
529	it = m->llDeviceFilters->end();
530	/* ...and insert */
531	m->llDeviceFilters->insert (it, filter);
532	filter->mInList = true;
533
534	/* notify the proxy (only when it makes sense) */
535	if (filter->getData().mActive && Global::IsOnline(adep.machineState()))
536	{
537	USBProxyService *service = m->pHost->usbProxyService();
538	ComAssertRet(service, E_FAIL);
539
540	ComAssertRet(filter->getId() == NULL, E_FAIL);
541	filter->getId() = service->insertFilter (&filter->getData().mUSBFilter);
542	}
543
544	alock.release();
545	AutoWriteLock mlock(m->pParent COMMA_LOCKVAL_SRC_POS);
546	m->pParent->setModified(Machine::IsModified_USB);
547	mlock.release();
548
549	return S_OK;
550
551	#else /* VBOX_WITH_USB */
552
553	NOREF(aPosition);
554	NOREF(aFilter);
555	ReturnComNotImplemented();
556
557	#endif /* VBOX_WITH_USB */
558	}
559
560	STDMETHODIMP USBController::RemoveDeviceFilter(ULONG aPosition,
561	IUSBDeviceFilter **aFilter)
562	{
563	#ifdef VBOX_WITH_USB
564
565	CheckComArgOutPointerValid(aFilter);
566
567	AutoCaller autoCaller(this);
568	if (FAILED(autoCaller.rc())) return autoCaller.rc();
569
570	/* the machine needs to be mutable */
571	AutoMutableStateDependency adep(m->pParent);
572	if (FAILED(adep.rc())) return adep.rc();
573
574	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
575
576	if (!m->llDeviceFilters->size())
577	return setError(E_INVALIDARG,
578	tr("The USB device filter list is empty"));
579
580	if (aPosition >= m->llDeviceFilters->size())
581	return setError(E_INVALIDARG,
582	tr("Invalid position: %lu (must be in range [0, %lu])"),
583	aPosition, m->llDeviceFilters->size() - 1);
584
585	/* backup the list before modification */
586	m->llDeviceFilters.backup();
587
588	ComObjPtr<USBDeviceFilter> filter;
589	{
590	/* iterate to the position... */
591	DeviceFilterList::iterator it = m->llDeviceFilters->begin();
592	std::advance (it, aPosition);
593	/* ...get an element from there... */
594	filter = *it;
595	/* ...and remove */
596	filter->mInList = false;
597	m->llDeviceFilters->erase (it);
598	}
599
600	/* cancel sharing (make an independent copy of data) */
601	filter->unshare();
602
603	filter.queryInterfaceTo(aFilter);
604
605	/* notify the proxy (only when it makes sense) */
606	if (filter->getData().mActive && Global::IsOnline(adep.machineState()))
607	{
608	USBProxyService *service = m->pHost->usbProxyService();
609	ComAssertRet(service, E_FAIL);
610
611	ComAssertRet(filter->getId() != NULL, E_FAIL);
612	service->removeFilter(filter->getId());
613	filter->getId() = NULL;
614	}
615
616	alock.release();
617	AutoWriteLock mlock(m->pParent COMMA_LOCKVAL_SRC_POS);
618	m->pParent->setModified(Machine::IsModified_USB);
619	mlock.release();
620
621	return S_OK;
622
623	#else /* VBOX_WITH_USB */
624
625	NOREF(aPosition);
626	NOREF(aFilter);
627	ReturnComNotImplemented();
628
629	#endif /* VBOX_WITH_USB */
630	}
631
632	// public methods only for internal purposes
633	/////////////////////////////////////////////////////////////////////////////
634
635	/**
636	* Loads settings from the given machine node.
637	* May be called once right after this object creation.
638	*
639	* @param aMachineNode <Machine> node.
640	*
641	* @note Does not lock "this" as Machine::loadHardware, which calls this, does not lock either.
642	*/
643	HRESULT USBController::loadSettings(const settings::USBController &data)
644	{
645	AutoCaller autoCaller(this);
646	AssertComRCReturnRC(autoCaller.rc());
647
648	/* Note: we assume that the default values for attributes of optional
649	* nodes are assigned in the Data::Data() constructor and don't do it
650	* here. It implies that this method may only be called after constructing
651	* a new BIOSSettings object while all its data fields are in the default
652	* values. Exceptions are fields whose creation time defaults don't match
653	* values that should be applied when these fields are not explicitly set
654	* in the settings file (for backwards compatibility reasons). This takes
655	* place when a setting of a newly created object must default to A while
656	* the same setting of an object loaded from the old settings file must
657	* default to B. */
658
659	m->bd->fEnabled = data.fEnabled;
660	m->bd->fEnabledEHCI = data.fEnabledEHCI;
661
662	#ifdef VBOX_WITH_USB
663	for (settings::USBDeviceFiltersList::const_iterator it = data.llDeviceFilters.begin();
664	it != data.llDeviceFilters.end();
665	++it)
666	{
667	const settings::USBDeviceFilter &f = *it;
668	ComObjPtr<USBDeviceFilter> pFilter;
669	pFilter.createObject();
670	HRESULT rc = pFilter->init(this, // parent
671	f);
672	if (FAILED(rc)) return rc;
673
674	m->llDeviceFilters->push_back(pFilter);
675	pFilter->mInList = true;
676	}
677	#endif /* VBOX_WITH_USB */
678
679	return S_OK;
680	}
681
682	/**
683	* Saves settings to the given machine node.
684	*
685	* @param aMachineNode <Machine> node.
686	*
687	* @note Locks this object for reading.
688	*/
689	HRESULT USBController::saveSettings(settings::USBController &data)
690	{
691	AutoCaller autoCaller(this);
692	if (FAILED(autoCaller.rc())) return autoCaller.rc();
693
694	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
695
696	data.fEnabled = !!m->bd->fEnabled;
697	data.fEnabledEHCI = !!m->bd->fEnabledEHCI;
698
699	#ifdef VBOX_WITH_USB
700	data.llDeviceFilters.clear();
701
702	for (DeviceFilterList::const_iterator it = m->llDeviceFilters->begin();
703	it != m->llDeviceFilters->end();
704	++it)
705	{
706	AutoWriteLock filterLock(*it COMMA_LOCKVAL_SRC_POS);
707	const USBDeviceFilter::Data &filterData = (*it)->getData();
708
709	Bstr str;
710
711	settings::USBDeviceFilter f;
712	f.strName = filterData.mName;
713	f.fActive = !!filterData.mActive;
714	(*it)->COMGETTER(VendorId)(str.asOutParam());
715	f.strVendorId = str;
716	(*it)->COMGETTER(ProductId)(str.asOutParam());
717	f.strProductId = str;
718	(*it)->COMGETTER (Revision) (str.asOutParam());
719	f.strRevision = str;
720	(*it)->COMGETTER (Manufacturer) (str.asOutParam());
721	f.strManufacturer = str;
722	(*it)->COMGETTER (Product) (str.asOutParam());
723	f.strProduct = str;
724	(*it)->COMGETTER (SerialNumber) (str.asOutParam());
725	f.strSerialNumber = str;
726	(*it)->COMGETTER (Port) (str.asOutParam());
727	f.strPort = str;
728	f.strRemote = filterData.mRemote.string();
729	f.ulMaskedInterfaces = filterData.mMaskedIfs;
730
731	data.llDeviceFilters.push_back(f);
732	}
733	#endif /* VBOX_WITH_USB */
734
735	return S_OK;
736	}
737
738	/** @note Locks objects for writing! */
739	void USBController::rollback()
740	{
741	AutoCaller autoCaller(this);
742	AssertComRCReturnVoid(autoCaller.rc());
743
744	/* we need the machine state */
745	AutoAnyStateDependency adep(m->pParent);
746	AssertComRCReturnVoid(adep.rc());
747
748	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
749
750	m->bd.rollback();
751
752	#ifdef VBOX_WITH_USB
753
754	if (m->llDeviceFilters.isBackedUp())
755	{
756	USBProxyService *service = m->pHost->usbProxyService();
757	Assert(service);
758
759	/* uninitialize all new filters (absent in the backed up list) */
760	DeviceFilterList::const_iterator it = m->llDeviceFilters->begin();
761	DeviceFilterList *backedList = m->llDeviceFilters.backedUpData();
762	while (it != m->llDeviceFilters->end())
763	{
764	if (std::find (backedList->begin(), backedList->end(), *it) ==
765	backedList->end())
766	{
767	/* notify the proxy (only when it makes sense) */
768	if ((*it)->getData().mActive &&
769	Global::IsOnline (adep.machineState()))
770	{
771	USBDeviceFilter filter = it;
772	Assert(filter->getId() != NULL);
773	service->removeFilter(filter->getId());
774	filter->getId() = NULL;
775	}
776
777	(*it)->uninit();
778	}
779	++ it;
780	}
781
782	if (Global::IsOnline (adep.machineState()))
783	{
784	/* find all removed old filters (absent in the new list)
785	* and insert them back to the USB proxy */
786	it = backedList->begin();
787	while (it != backedList->end())
788	{
789	if (std::find (m->llDeviceFilters->begin(), m->llDeviceFilters->end(), *it) ==
790	m->llDeviceFilters->end())
791	{
792	/* notify the proxy (only when necessary) */
793	if ((*it)->getData().mActive)
794	{
795	USBDeviceFilter flt = it; /* resolve ambiguity */
796	Assert(flt->getId() == NULL);
797	flt->getId() = service->insertFilter(&flt->getData().mUSBFilter);
798	}
799	}
800	++ it;
801	}
802	}
803
804	/* restore the list */
805	m->llDeviceFilters.rollback();
806	}
807
808	/* here we don't depend on the machine state any more */
809	adep.release();
810
811	/* rollback any changes to filters after restoring the list */
812	DeviceFilterList::const_iterator it = m->llDeviceFilters->begin();
813	while (it != m->llDeviceFilters->end())
814	{
815	if ((*it)->isModified())
816	{
817	(*it)->rollback();
818	/* call this to notify the USB proxy about changes */
819	onDeviceFilterChange(*it);
820	}
821	++it;
822	}
823
824	#endif /* VBOX_WITH_USB */
825	}
826
827	/**
828	* @note Locks this object for writing, together with the peer object (also
829	* for writing) if there is one.
830	*/
831	void USBController::commit()
832	{
833	/* sanity */
834	AutoCaller autoCaller(this);
835	AssertComRCReturnVoid (autoCaller.rc());
836
837	/* sanity too */
838	AutoCaller peerCaller(m->pPeer);
839	AssertComRCReturnVoid (peerCaller.rc());
840
841	/* lock both for writing since we modify both (mPeer is "master" so locked
842	* first) */
843	AutoMultiWriteLock2 alock(m->pPeer, this COMMA_LOCKVAL_SRC_POS);
844
845	if (m->bd.isBackedUp())
846	{
847	m->bd.commit();
848	if (m->pPeer)
849	{
850	/* attach new data to the peer and reshare it */
851	AutoWriteLock peerlock(m->pPeer COMMA_LOCKVAL_SRC_POS);
852	m->pPeer->m->bd.attach(m->bd);
853	}
854	}
855
856	#ifdef VBOX_WITH_USB
857	bool commitFilters = false;
858
859	if (m->llDeviceFilters.isBackedUp())
860	{
861	m->llDeviceFilters.commit();
862
863	/* apply changes to peer */
864	if (m->pPeer)
865	{
866	AutoWriteLock peerlock(m->pPeer COMMA_LOCKVAL_SRC_POS);
867
868	/* commit all changes to new filters (this will reshare data with
869	* peers for those who have peers) */
870	DeviceFilterList *newList = new DeviceFilterList();
871	DeviceFilterList::const_iterator it = m->llDeviceFilters->begin();
872	while (it != m->llDeviceFilters->end())
873	{
874	(*it)->commit();
875
876	/* look if this filter has a peer filter */
877	ComObjPtr<USBDeviceFilter> peer = (*it)->peer();
878	if (!peer)
879	{
880	/* no peer means the filter is a newly created one;
881	* create a peer owning data this filter share it with */
882	peer.createObject();
883	peer->init(m->pPeer, it, true / aReshare */);
884	}
885	else
886	{
887	/* remove peer from the old list */
888	m->pPeer->m->llDeviceFilters->remove(peer);
889	}
890	/* and add it to the new list */
891	newList->push_back (peer);
892
893	++ it;
894	}
895
896	/* uninit old peer's filters that are left */
897	it = m->pPeer->m->llDeviceFilters->begin();
898	while (it != m->pPeer->m->llDeviceFilters->end())
899	{
900	(*it)->uninit();
901	++ it;
902	}
903
904	/* attach new list of filters to our peer */
905	m->pPeer->m->llDeviceFilters.attach(newList);
906	}
907	else
908	{
909	/* we have no peer (our parent is the newly created machine);
910	* just commit changes to filters */
911	commitFilters = true;
912	}
913	}
914	else
915	{
916	/* the list of filters itself is not changed,
917	* just commit changes to filters themselves */
918	commitFilters = true;
919	}
920
921	if (commitFilters)
922	{
923	DeviceFilterList::const_iterator it = m->llDeviceFilters->begin();
924	while (it != m->llDeviceFilters->end())
925	{
926	(*it)->commit();
927	++ it;
928	}
929	}
930	#endif /* VBOX_WITH_USB */
931	}
932
933	/**
934	* @note Locks this object for writing, together with the peer object
935	* represented by @a aThat (locked for reading).
936	*/
937	void USBController::copyFrom (USBController *aThat)
938	{
939	AssertReturnVoid (aThat != NULL);
940
941	/* sanity */
942	AutoCaller autoCaller(this);
943	AssertComRCReturnVoid (autoCaller.rc());
944
945	/* sanity too */
946	AutoCaller thatCaller (aThat);
947	AssertComRCReturnVoid (thatCaller.rc());
948
949	/* even more sanity */
950	AutoAnyStateDependency adep(m->pParent);
951	AssertComRCReturnVoid (adep.rc());
952	/* Machine::copyFrom() may not be called when the VM is running */
953	AssertReturnVoid (!Global::IsOnline (adep.machineState()));
954
955	/* peer is not modified, lock it for reading (aThat is "master" so locked
956	* first) */
957	AutoReadLock rl(aThat COMMA_LOCKVAL_SRC_POS);
958	AutoWriteLock wl(this COMMA_LOCKVAL_SRC_POS);
959
960	/* this will back up current data */
961	m->bd.assignCopy(aThat->m->bd);
962
963	#ifdef VBOX_WITH_USB
964
965	/* Note that we won't inform the USB proxy about new filters since the VM is
966	* not running when we are here and therefore no need to do so */
967
968	/* create private copies of all filters */
969	m->llDeviceFilters.backup();
970	m->llDeviceFilters->clear();
971	for (DeviceFilterList::const_iterator it = aThat->m->llDeviceFilters->begin();
972	it != aThat->m->llDeviceFilters->end();
973	++ it)
974	{
975	ComObjPtr<USBDeviceFilter> filter;
976	filter.createObject();
977	filter->initCopy (this, *it);
978	m->llDeviceFilters->push_back (filter);
979	}
980
981	#endif /* VBOX_WITH_USB */
982	}
983
984	#ifdef VBOX_WITH_USB
985
986	/**
987	* Called by setter methods of all USB device filters.
988	*
989	* @note Locks nothing.
990	*/
991	HRESULT USBController::onDeviceFilterChange (USBDeviceFilter *aFilter,
992	BOOL aActiveChanged /* = FALSE */)
993	{
994	AutoCaller autoCaller(this);
995	AssertComRCReturnRC(autoCaller.rc());
996
997	/* we need the machine state */
998	AutoAnyStateDependency adep(m->pParent);
999	AssertComRCReturnRC(adep.rc());
1000
1001	/* nothing to do if the machine isn't running */
1002	if (!Global::IsOnline (adep.machineState()))
1003	return S_OK;
1004
1005	/* we don't modify our data fields -- no need to lock */
1006
1007	if ( aFilter->mInList
1008	&& m->pParent->isRegistered())
1009	{
1010	USBProxyService *service = m->pHost->usbProxyService();
1011	ComAssertRet(service, E_FAIL);
1012
1013	if (aActiveChanged)
1014	{
1015	/* insert/remove the filter from the proxy */
1016	if (aFilter->getData().mActive)
1017	{
1018	ComAssertRet(aFilter->getId() == NULL, E_FAIL);
1019	aFilter->getId() = service->insertFilter(&aFilter->getData().mUSBFilter);
1020	}
1021	else
1022	{
1023	ComAssertRet(aFilter->getId() != NULL, E_FAIL);
1024	service->removeFilter(aFilter->getId());
1025	aFilter->getId() = NULL;
1026	}
1027	}
1028	else
1029	{
1030	if (aFilter->getData().mActive)
1031	{
1032	/* update the filter in the proxy */
1033	ComAssertRet(aFilter->getId() != NULL, E_FAIL);
1034	service->removeFilter(aFilter->getId());
1035	aFilter->getId() = service->insertFilter(&aFilter->getData().mUSBFilter);
1036	}
1037	}
1038	}
1039
1040	return S_OK;
1041	}
1042
1043	/**
1044	* Returns true if the given USB device matches to at least one of
1045	* this controller's USB device filters.
1046	*
1047	* A HostUSBDevice specific version.
1048	*
1049	* @note Locks this object for reading.
1050	*/
1051	bool USBController::hasMatchingFilter (const ComObjPtr<HostUSBDevice> &aDevice, ULONG *aMaskedIfs)
1052	{
1053	AutoCaller autoCaller(this);
1054	AssertComRCReturn (autoCaller.rc(), false);
1055
1056	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
1057
1058	/* Disabled USB controllers cannot actually work with USB devices */
1059	if (!m->bd->fEnabled)
1060	return false;
1061
1062	/* apply self filters */
1063	for (DeviceFilterList::const_iterator it = m->llDeviceFilters->begin();
1064	it != m->llDeviceFilters->end();
1065	++ it)
1066	{
1067	AutoWriteLock filterLock(*it COMMA_LOCKVAL_SRC_POS);
1068	if (aDevice->isMatch((*it)->getData()))
1069	{
1070	aMaskedIfs = (it)->getData().mMaskedIfs;
1071	return true;
1072	}
1073	}
1074
1075	return false;
1076	}
1077
1078	/**
1079	* Returns true if the given USB device matches to at least one of
1080	* this controller's USB device filters.
1081	*
1082	* A generic version that accepts any IUSBDevice on input.
1083	*
1084	* @note
1085	* This method MUST correlate with HostUSBDevice::isMatch()
1086	* in the sense of the device matching logic.
1087	*
1088	* @note Locks this object for reading.
1089	*/
1090	bool USBController::hasMatchingFilter (IUSBDevice aUSBDevice, ULONG aMaskedIfs)
1091	{
1092	LogFlowThisFuncEnter();
1093
1094	AutoCaller autoCaller(this);
1095	AssertComRCReturn (autoCaller.rc(), false);
1096
1097	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
1098
1099	/* Disabled USB controllers cannot actually work with USB devices */
1100	if (!m->bd->fEnabled)
1101	return false;
1102
1103	HRESULT rc = S_OK;
1104
1105	/* query fields */
1106	USBFILTER dev;
1107	USBFilterInit (&dev, USBFILTERTYPE_CAPTURE);
1108
1109	USHORT vendorId = 0;
1110	rc = aUSBDevice->COMGETTER(VendorId) (&vendorId);
1111	ComAssertComRCRet(rc, false);
1112	ComAssertRet(vendorId, false);
1113	int vrc = USBFilterSetNumExact (&dev, USBFILTERIDX_VENDOR_ID, vendorId, true); AssertRC(vrc);
1114
1115	USHORT productId = 0;
1116	rc = aUSBDevice->COMGETTER(ProductId) (&productId);
1117	ComAssertComRCRet(rc, false);
1118	vrc = USBFilterSetNumExact (&dev, USBFILTERIDX_PRODUCT_ID, productId, true); AssertRC(vrc);
1119
1120	USHORT revision;
1121	rc = aUSBDevice->COMGETTER(Revision) (&revision);
1122	ComAssertComRCRet(rc, false);
1123	vrc = USBFilterSetNumExact (&dev, USBFILTERIDX_DEVICE, revision, true); AssertRC(vrc);
1124
1125	Bstr manufacturer;
1126	rc = aUSBDevice->COMGETTER(Manufacturer) (manufacturer.asOutParam());
1127	ComAssertComRCRet(rc, false);
1128	if (!manufacturer.isEmpty())
1129	USBFilterSetStringExact (&dev, USBFILTERIDX_MANUFACTURER_STR, Utf8Str(manufacturer).c_str(), true);
1130
1131	Bstr product;
1132	rc = aUSBDevice->COMGETTER(Product) (product.asOutParam());
1133	ComAssertComRCRet(rc, false);
1134	if (!product.isEmpty())
1135	USBFilterSetStringExact (&dev, USBFILTERIDX_PRODUCT_STR, Utf8Str(product).c_str(), true);
1136
1137	Bstr serialNumber;
1138	rc = aUSBDevice->COMGETTER(SerialNumber) (serialNumber.asOutParam());
1139	ComAssertComRCRet(rc, false);
1140	if (!serialNumber.isEmpty())
1141	USBFilterSetStringExact (&dev, USBFILTERIDX_SERIAL_NUMBER_STR, Utf8Str(serialNumber).c_str(), true);
1142
1143	Bstr address;
1144	rc = aUSBDevice->COMGETTER(Address) (address.asOutParam());
1145	ComAssertComRCRet(rc, false);
1146
1147	USHORT port = 0;
1148	rc = aUSBDevice->COMGETTER(Port)(&port);
1149	ComAssertComRCRet(rc, false);
1150	USBFilterSetNumExact (&dev, USBFILTERIDX_PORT, port, true);
1151
1152	BOOL remote = FALSE;
1153	rc = aUSBDevice->COMGETTER(Remote)(&remote);
1154	ComAssertComRCRet(rc, false);
1155	ComAssertRet(remote == TRUE, false);
1156
1157	bool match = false;
1158
1159	/* apply self filters */
1160	for (DeviceFilterList::const_iterator it = m->llDeviceFilters->begin();
1161	it != m->llDeviceFilters->end();
1162	++ it)
1163	{
1164	AutoWriteLock filterLock(*it COMMA_LOCKVAL_SRC_POS);
1165	const USBDeviceFilter::Data &aData = (*it)->getData();
1166
1167	if (!aData.mActive)
1168	continue;
1169	if (!aData.mRemote.isMatch (remote))
1170	continue;
1171	if (!USBFilterMatch (&aData.mUSBFilter, &dev))
1172	continue;
1173
1174	match = true;
1175	*aMaskedIfs = aData.mMaskedIfs;
1176	break;
1177	}
1178
1179	LogFlowThisFunc(("returns: %d\n", match));
1180	LogFlowThisFuncLeave();
1181
1182	return match;
1183	}
1184
1185	/**
1186	* Notifies the proxy service about all filters as requested by the
1187	* @a aInsertFilters argument.
1188	*
1189	* @param aInsertFilters @c true to insert filters, @c false to remove.
1190	*
1191	* @note Locks this object for reading.
1192	*/
1193	HRESULT USBController::notifyProxy (bool aInsertFilters)
1194	{
1195	LogFlowThisFunc(("aInsertFilters=%RTbool\n", aInsertFilters));
1196
1197	AutoCaller autoCaller(this);
1198	AssertComRCReturn (autoCaller.rc(), false);
1199
1200	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
1201
1202	USBProxyService *service = m->pHost->usbProxyService();
1203	AssertReturn(service, E_FAIL);
1204
1205	DeviceFilterList::const_iterator it = m->llDeviceFilters->begin();
1206	while (it != m->llDeviceFilters->end())
1207	{
1208	USBDeviceFilter flt = it; /* resolve ambiguity (for ComPtr below) */
1209
1210	/* notify the proxy (only if the filter is active) */
1211	if (flt->getData().mActive)
1212	{
1213	if (aInsertFilters)
1214	{
1215	AssertReturn(flt->getId() == NULL, E_FAIL);
1216	flt->getId() = service->insertFilter(&flt->getData().mUSBFilter);
1217	}
1218	else
1219	{
1220	/* It's possible that the given filter was not inserted the proxy
1221	* when this method gets called (as a result of an early VM
1222	* process crash for example. So, don't assert that ID != NULL. */
1223	if (flt->getId() != NULL)
1224	{
1225	service->removeFilter(flt->getId());
1226	flt->getId() = NULL;
1227	}
1228	}
1229	}
1230	++ it;
1231	}
1232
1233	return S_OK;
1234	}
1235
1236	Machine* USBController::getMachine()
1237	{
1238	return m->pParent;
1239	}
1240
1241	#endif /* VBOX_WITH_USB */
1242
1243	// private methods
1244	/////////////////////////////////////////////////////////////////////////////
1245	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Main/USBControllerImpl.cpp@ 35242

Download in other formats: