VBoxManageUSB.cpp@ 31713

Last change on this file since 31713 was 31070, checked in by vboxsync, 14 years ago
Main: rename ISession::close() to ISession::unlockMachine(); API documentation
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
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1	/* $Id: VBoxManageUSB.cpp 31070 2010-07-23 16:00:09Z vboxsync $ */
2	/** @file
3	* VBoxManage - VirtualBox's command-line interface.
4	*/
5
6	/*
7	* Copyright (C) 2006-2009 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 <VBox/com/com.h>
19	#include <VBox/com/string.h>
20	#include <VBox/com/Guid.h>
21	#include <VBox/com/array.h>
22	#include <VBox/com/ErrorInfo.h>
23	#include <VBox/com/errorprint.h>
24	#include <VBox/com/EventQueue.h>
25
26	#include <VBox/com/VirtualBox.h>
27
28	#include "VBoxManage.h"
29
30	#include <iprt/asm.h>
31
32	/* missing XPCOM <-> COM wrappers */
33	#ifndef STDMETHOD_
34	# define STDMETHOD_(ret, meth) NS_IMETHOD_(ret) meth
35	#endif
36	#ifndef NS_GET_IID
37	# define NS_GET_IID(I) IID_##I
38	#endif
39	#ifndef RT_OS_WINDOWS
40	#define IUnknown nsISupports
41	#endif
42
43	using namespace com;
44
45	/**
46	* Quick IUSBDevice implementation for detaching / attaching
47	* devices to the USB Controller.
48	*/
49	class MyUSBDevice : public IUSBDevice
50	{
51	public:
52	// public initializer/uninitializer for internal purposes only
53	MyUSBDevice(uint16_t a_u16VendorId, uint16_t a_u16ProductId, uint16_t a_bcdRevision, uint64_t a_u64SerialHash, const char *a_pszComment)
54	: m_usVendorId(a_u16VendorId), m_usProductId(a_u16ProductId),
55	m_bcdRevision(a_bcdRevision), m_u64SerialHash(a_u64SerialHash),
56	m_bstrComment(a_pszComment),
57	m_cRefs(0)
58	{
59	}
60
61	STDMETHOD_(ULONG, AddRef)(void)
62	{
63	return ASMAtomicIncU32(&m_cRefs);
64	}
65	STDMETHOD_(ULONG, Release)(void)
66	{
67	ULONG cRefs = ASMAtomicDecU32(&m_cRefs);
68	if (!cRefs)
69	delete this;
70	return cRefs;
71	}
72	STDMETHOD(QueryInterface)(const IID &iid, void **ppvObject)
73	{
74	Guid guid(iid);
75	if (guid == Guid(NS_GET_IID(IUnknown)))
76	ppvObject = (IUnknown )this;
77	#ifdef RT_OS_WINDOWS
78	else if (guid == Guid(NS_GET_IID(IDispatch)))
79	ppvObject = (IDispatch )this;
80	#endif
81	else if (guid == Guid(NS_GET_IID(IUSBDevice)))
82	ppvObject = (IUSBDevice )this;
83	else
84	return E_NOINTERFACE;
85	AddRef();
86	return S_OK;
87	}
88
89	STDMETHOD(COMGETTER(Id))(OUT_GUID a_pId) { return E_NOTIMPL; }
90	STDMETHOD(COMGETTER(VendorId))(USHORT a_pusVendorId) { a_pusVendorId = m_usVendorId; return S_OK; }
91	STDMETHOD(COMGETTER(ProductId))(USHORT a_pusProductId) { a_pusProductId = m_usProductId; return S_OK; }
92	STDMETHOD(COMGETTER(Revision))(USHORT a_pusRevision) { a_pusRevision = m_bcdRevision; return S_OK; }
93	STDMETHOD(COMGETTER(SerialHash))(ULONG64 a_pullSerialHash) { a_pullSerialHash = m_u64SerialHash; return S_OK; }
94	STDMETHOD(COMGETTER(Manufacturer))(BSTR *a_pManufacturer) { return E_NOTIMPL; }
95	STDMETHOD(COMGETTER(Product))(BSTR *a_pProduct) { return E_NOTIMPL; }
96	STDMETHOD(COMGETTER(SerialNumber))(BSTR *a_pSerialNumber) { return E_NOTIMPL; }
97	STDMETHOD(COMGETTER(Address))(BSTR *a_pAddress) { return E_NOTIMPL; }
98
99	private:
100	/** The vendor id of this USB device. */
101	USHORT m_usVendorId;
102	/** The product id of this USB device. */
103	USHORT m_usProductId;
104	/** The product revision number of this USB device.
105	* (high byte = integer; low byte = decimal) */
106	USHORT m_bcdRevision;
107	/** The USB serial hash of the device. */
108	uint64_t m_u64SerialHash;
109	/** The user comment string. */
110	Bstr m_bstrComment;
111	/** Reference counter. */
112	uint32_t volatile m_cRefs;
113	};
114
115
116	// types
117	///////////////////////////////////////////////////////////////////////////////
118
119	template <typename T>
120	class Nullable
121	{
122	public:
123
124	Nullable() : mIsNull (true) {}
125	Nullable (const T &aValue, bool aIsNull = false)
126	: mIsNull (aIsNull), mValue (aValue) {}
127
128	bool isNull() const { return mIsNull; };
129	void setNull (bool aIsNull = true) { mIsNull = aIsNull; }
130
131	operator const T&() const { return mValue; }
132
133	Nullable &operator= (const T &aValue)
134	{
135	mValue = aValue;
136	mIsNull = false;
137	return *this;
138	}
139
140	private:
141
142	bool mIsNull;
143	T mValue;
144	};
145
146	/** helper structure to encapsulate USB filter manipulation commands */
147	struct USBFilterCmd
148	{
149	struct USBFilter
150	{
151	USBFilter ()
152	: mAction (USBDeviceFilterAction_Null)
153	{}
154
155	Bstr mName;
156	Nullable <bool> mActive;
157	Bstr mVendorId;
158	Bstr mProductId;
159	Bstr mRevision;
160	Bstr mManufacturer;
161	Bstr mProduct;
162	Bstr mRemote;
163	Bstr mSerialNumber;
164	Nullable <ULONG> mMaskedInterfaces;
165	USBDeviceFilterAction_T mAction;
166	};
167
168	enum Action { Invalid, Add, Modify, Remove };
169
170	USBFilterCmd() : mAction (Invalid), mIndex (0), mGlobal (false) {}
171
172	Action mAction;
173	uint32_t mIndex;
174	/** flag whether the command target is a global filter */
175	bool mGlobal;
176	/** machine this command is targeted at (null for global filters) */
177	ComPtr<IMachine> mMachine;
178	USBFilter mFilter;
179	};
180
181	int handleUSBFilter (HandlerArg *a)
182	{
183	HRESULT rc = S_OK;
184	USBFilterCmd cmd;
185
186	/* at least: 0: command, 1: index, 2: --target, 3: <target value> */
187	if (a->argc < 4)
188	return errorSyntax(USAGE_USBFILTER, "Not enough parameters");
189
190	/* which command? */
191	cmd.mAction = USBFilterCmd::Invalid;
192	if (!strcmp(a->argv[0], "add")) cmd.mAction = USBFilterCmd::Add;
193	else if (!strcmp(a->argv[0], "modify")) cmd.mAction = USBFilterCmd::Modify;
194	else if (!strcmp(a->argv[0], "remove")) cmd.mAction = USBFilterCmd::Remove;
195
196	if (cmd.mAction == USBFilterCmd::Invalid)
197	return errorSyntax(USAGE_USBFILTER, "Invalid parameter '%s'", a->argv[0]);
198
199	/* which index? */
200	if (VINF_SUCCESS != RTStrToUInt32Full (a->argv[1], 10, &cmd.mIndex))
201	return errorSyntax(USAGE_USBFILTER, "Invalid index '%s'", a->argv[1]);
202
203	switch (cmd.mAction)
204	{
205	case USBFilterCmd::Add:
206	case USBFilterCmd::Modify:
207	{
208	/* at least: 0: command, 1: index, 2: --target, 3: <target value>, 4: --name, 5: <name value> */
209	if (a->argc < 6)
210	{
211	if (cmd.mAction == USBFilterCmd::Add)
212	return errorSyntax(USAGE_USBFILTER_ADD, "Not enough parameters");
213
214	return errorSyntax(USAGE_USBFILTER_MODIFY, "Not enough parameters");
215	}
216
217	// set Active to true by default
218	// (assuming that the user sets up all necessary attributes
219	// at once and wants the filter to be active immediately)
220	if (cmd.mAction == USBFilterCmd::Add)
221	cmd.mFilter.mActive = true;
222
223	for (int i = 2; i < a->argc; i++)
224	{
225	if ( !strcmp(a->argv[i], "--target")
226	\|\| !strcmp(a->argv[i], "-target"))
227	{
228	if (a->argc <= i + 1 \|\| !*a->argv[i+1])
229	return errorArgument("Missing argument to '%s'", a->argv[i]);
230	i++;
231	if (!strcmp(a->argv[i], "global"))
232	cmd.mGlobal = true;
233	else
234	{
235	/* assume it's a UUID of a machine */
236	rc = a->virtualBox->GetMachine(Bstr(a->argv[i]), cmd.mMachine.asOutParam());
237	if (FAILED(rc) \|\| !cmd.mMachine)
238	{
239	/* must be a name */
240	CHECK_ERROR_RET(a->virtualBox, FindMachine(Bstr(a->argv[i]), cmd.mMachine.asOutParam()), 1);
241	}
242	}
243	}
244	else if ( !strcmp(a->argv[i], "--name")
245	\|\| !strcmp(a->argv[i], "-name"))
246	{
247	if (a->argc <= i + 1 \|\| !*a->argv[i+1])
248	return errorArgument("Missing argument to '%s'", a->argv[i]);
249	i++;
250	cmd.mFilter.mName = a->argv[i];
251	}
252	else if ( !strcmp(a->argv[i], "--active")
253	\|\| !strcmp(a->argv[i], "-active"))
254	{
255	if (a->argc <= i + 1)
256	return errorArgument("Missing argument to '%s'", a->argv[i]);
257	i++;
258	if (!strcmp(a->argv[i], "yes"))
259	cmd.mFilter.mActive = true;
260	else if (!strcmp(a->argv[i], "no"))
261	cmd.mFilter.mActive = false;
262	else
263	return errorArgument("Invalid --active argument '%s'", a->argv[i]);
264	}
265	else if ( !strcmp(a->argv[i], "--vendorid")
266	\|\| !strcmp(a->argv[i], "-vendorid"))
267	{
268	if (a->argc <= i + 1)
269	return errorArgument("Missing argument to '%s'", a->argv[i]);
270	i++;
271	cmd.mFilter.mVendorId = a->argv[i];
272	}
273	else if ( !strcmp(a->argv[i], "--productid")
274	\|\| !strcmp(a->argv[i], "-productid"))
275	{
276	if (a->argc <= i + 1)
277	return errorArgument("Missing argument to '%s'", a->argv[i]);
278	i++;
279	cmd.mFilter.mProductId = a->argv[i];
280	}
281	else if ( !strcmp(a->argv[i], "--revision")
282	\|\| !strcmp(a->argv[i], "-revision"))
283	{
284	if (a->argc <= i + 1)
285	return errorArgument("Missing argument to '%s'", a->argv[i]);
286	i++;
287	cmd.mFilter.mRevision = a->argv[i];
288	}
289	else if ( !strcmp(a->argv[i], "--manufacturer")
290	\|\| !strcmp(a->argv[i], "-manufacturer"))
291	{
292	if (a->argc <= i + 1)
293	return errorArgument("Missing argument to '%s'", a->argv[i]);
294	i++;
295	cmd.mFilter.mManufacturer = a->argv[i];
296	}
297	else if ( !strcmp(a->argv[i], "--product")
298	\|\| !strcmp(a->argv[i], "-product"))
299	{
300	if (a->argc <= i + 1)
301	return errorArgument("Missing argument to '%s'", a->argv[i]);
302	i++;
303	cmd.mFilter.mProduct = a->argv[i];
304	}
305	else if ( !strcmp(a->argv[i], "--remote")
306	\|\| !strcmp(a->argv[i], "-remote"))
307	{
308	if (a->argc <= i + 1)
309	return errorArgument("Missing argument to '%s'", a->argv[i]);
310	i++;
311	cmd.mFilter.mRemote = a->argv[i];
312	}
313	else if ( !strcmp(a->argv[i], "--serialnumber")
314	\|\| !strcmp(a->argv[i], "-serialnumber"))
315	{
316	if (a->argc <= i + 1)
317	return errorArgument("Missing argument to '%s'", a->argv[i]);
318	i++;
319	cmd.mFilter.mSerialNumber = a->argv[i];
320	}
321	else if ( !strcmp(a->argv[i], "--maskedinterfaces")
322	\|\| !strcmp(a->argv[i], "-maskedinterfaces"))
323	{
324	if (a->argc <= i + 1)
325	return errorArgument("Missing argument to '%s'", a->argv[i]);
326	i++;
327	uint32_t u32;
328	int vrc = RTStrToUInt32Full(a->argv[i], 0, &u32);
329	if (RT_FAILURE(vrc))
330	return errorArgument("Failed to convert the --maskedinterfaces value '%s' to a number, vrc=%Rrc", a->argv[i], vrc);
331	cmd.mFilter.mMaskedInterfaces = u32;
332	}
333	else if ( !strcmp(a->argv[i], "--action")
334	\|\| !strcmp(a->argv[i], "-action"))
335	{
336	if (a->argc <= i + 1)
337	return errorArgument("Missing argument to '%s'", a->argv[i]);
338	i++;
339	if (!strcmp(a->argv[i], "ignore"))
340	cmd.mFilter.mAction = USBDeviceFilterAction_Ignore;
341	else if (!strcmp(a->argv[i], "hold"))
342	cmd.mFilter.mAction = USBDeviceFilterAction_Hold;
343	else
344	return errorArgument("Invalid USB filter action '%s'", a->argv[i]);
345	}
346	else
347	return errorSyntax(cmd.mAction == USBFilterCmd::Add ? USAGE_USBFILTER_ADD : USAGE_USBFILTER_MODIFY,
348	"Unknown option '%s'", a->argv[i]);
349	}
350
351	if (cmd.mAction == USBFilterCmd::Add)
352	{
353	// mandatory/forbidden options
354	if ( cmd.mFilter.mName.isEmpty()
355	\|\|
356	( cmd.mGlobal
357	&& cmd.mFilter.mAction == USBDeviceFilterAction_Null
358	)
359	\|\| ( !cmd.mGlobal
360	&& !cmd.mMachine)
361	\|\| ( cmd.mGlobal
362	&& cmd.mFilter.mRemote)
363	)
364	{
365	return errorSyntax(USAGE_USBFILTER_ADD, "Mandatory options not supplied");
366	}
367	}
368	break;
369	}
370
371	case USBFilterCmd::Remove:
372	{
373	/* at least: 0: command, 1: index, 2: --target, 3: <target value> */
374	if (a->argc < 4)
375	return errorSyntax(USAGE_USBFILTER_REMOVE, "Not enough parameters");
376
377	for (int i = 2; i < a->argc; i++)
378	{
379	if ( !strcmp(a->argv[i], "--target")
380	\|\| !strcmp(a->argv[i], "-target"))
381	{
382	if (a->argc <= i + 1 \|\| !*a->argv[i+1])
383	return errorArgument("Missing argument to '%s'", a->argv[i]);
384	i++;
385	if (!strcmp(a->argv[i], "global"))
386	cmd.mGlobal = true;
387	else
388	{
389	/* assume it's a UUID of a machine */
390	rc = a->virtualBox->GetMachine(Bstr(a->argv[i]), cmd.mMachine.asOutParam());
391	if (FAILED(rc) \|\| !cmd.mMachine)
392	{
393	/* must be a name */
394	CHECK_ERROR_RET(a->virtualBox, FindMachine(Bstr(a->argv[i]), cmd.mMachine.asOutParam()), 1);
395	}
396	}
397	}
398	}
399
400	// mandatory options
401	if (!cmd.mGlobal && !cmd.mMachine)
402	return errorSyntax(USAGE_USBFILTER_REMOVE, "Mandatory options not supplied");
403
404	break;
405	}
406
407	default: break;
408	}
409
410	USBFilterCmd::USBFilter &f = cmd.mFilter;
411
412	ComPtr <IHost> host;
413	ComPtr <IUSBController> ctl;
414	if (cmd.mGlobal)
415	CHECK_ERROR_RET (a->virtualBox, COMGETTER(Host) (host.asOutParam()), 1);
416	else
417	{
418	/* open a session for the VM */
419	CHECK_ERROR_RET(cmd.mMachine, LockMachine(a->session, LockType_Write), 1);
420	/* get the mutable session machine */
421	a->session->COMGETTER(Machine)(cmd.mMachine.asOutParam());
422	/* and get the USB controller */
423	CHECK_ERROR_RET(cmd.mMachine, COMGETTER(USBController)(ctl.asOutParam()), 1);
424	}
425
426	switch (cmd.mAction)
427	{
428	case USBFilterCmd::Add:
429	{
430	if (cmd.mGlobal)
431	{
432	ComPtr <IHostUSBDeviceFilter> flt;
433	CHECK_ERROR_BREAK (host, CreateUSBDeviceFilter (f.mName, flt.asOutParam()));
434
435	if (!f.mActive.isNull())
436	CHECK_ERROR_BREAK (flt, COMSETTER(Active) (f.mActive));
437	if (!f.mVendorId.isEmpty())
438	CHECK_ERROR_BREAK (flt, COMSETTER(VendorId) (f.mVendorId));
439	if (!f.mProductId.isEmpty())
440	CHECK_ERROR_BREAK (flt, COMSETTER(ProductId) (f.mProductId));
441	if (!f.mRevision.isEmpty())
442	CHECK_ERROR_BREAK (flt, COMSETTER(Revision) (f.mRevision));
443	if (!f.mManufacturer.isEmpty())
444	CHECK_ERROR_BREAK (flt, COMSETTER(Manufacturer) (f.mManufacturer));
445	if (!f.mSerialNumber.isEmpty())
446	CHECK_ERROR_BREAK (flt, COMSETTER(SerialNumber) (f.mSerialNumber));
447	if (!f.mMaskedInterfaces.isNull())
448	CHECK_ERROR_BREAK (flt, COMSETTER(MaskedInterfaces) (f.mMaskedInterfaces));
449
450	if (f.mAction != USBDeviceFilterAction_Null)
451	CHECK_ERROR_BREAK (flt, COMSETTER(Action) (f.mAction));
452
453	CHECK_ERROR_BREAK (host, InsertUSBDeviceFilter (cmd.mIndex, flt));
454	}
455	else
456	{
457	ComPtr <IUSBDeviceFilter> flt;
458	CHECK_ERROR_BREAK (ctl, CreateDeviceFilter (f.mName, flt.asOutParam()));
459
460	if (!f.mActive.isNull())
461	CHECK_ERROR_BREAK (flt, COMSETTER(Active) (f.mActive));
462	if (!f.mVendorId.isEmpty())
463	CHECK_ERROR_BREAK (flt, COMSETTER(VendorId) (f.mVendorId));
464	if (!f.mProductId.isEmpty())
465	CHECK_ERROR_BREAK (flt, COMSETTER(ProductId) (f.mProductId));
466	if (!f.mRevision.isEmpty())
467	CHECK_ERROR_BREAK (flt, COMSETTER(Revision) (f.mRevision));
468	if (!f.mManufacturer.isEmpty())
469	CHECK_ERROR_BREAK (flt, COMSETTER(Manufacturer) (f.mManufacturer));
470	if (!f.mRemote.isEmpty())
471	CHECK_ERROR_BREAK (flt, COMSETTER(Remote) (f.mRemote));
472	if (!f.mSerialNumber.isEmpty())
473	CHECK_ERROR_BREAK (flt, COMSETTER(SerialNumber) (f.mSerialNumber));
474	if (!f.mMaskedInterfaces.isNull())
475	CHECK_ERROR_BREAK (flt, COMSETTER(MaskedInterfaces) (f.mMaskedInterfaces));
476
477	CHECK_ERROR_BREAK (ctl, InsertDeviceFilter (cmd.mIndex, flt));
478	}
479	break;
480	}
481	case USBFilterCmd::Modify:
482	{
483	if (cmd.mGlobal)
484	{
485	SafeIfaceArray <IHostUSBDeviceFilter> coll;
486	CHECK_ERROR_BREAK (host, COMGETTER(USBDeviceFilters) (ComSafeArrayAsOutParam(coll)));
487
488	ComPtr <IHostUSBDeviceFilter> flt = coll[cmd.mIndex];
489
490	if (!f.mName.isEmpty())
491	CHECK_ERROR_BREAK (flt, COMSETTER(Name) (f.mName));
492	if (!f.mActive.isNull())
493	CHECK_ERROR_BREAK (flt, COMSETTER(Active) (f.mActive));
494	if (!f.mVendorId.isEmpty())
495	CHECK_ERROR_BREAK (flt, COMSETTER(VendorId) (f.mVendorId));
496	if (!f.mProductId.isEmpty())
497	CHECK_ERROR_BREAK (flt, COMSETTER(ProductId) (f.mProductId));
498	if (!f.mRevision.isEmpty())
499	CHECK_ERROR_BREAK (flt, COMSETTER(Revision) (f.mRevision));
500	if (!f.mManufacturer.isEmpty())
501	CHECK_ERROR_BREAK (flt, COMSETTER(Manufacturer) (f.mManufacturer));
502	if (!f.mSerialNumber.isEmpty())
503	CHECK_ERROR_BREAK (flt, COMSETTER(SerialNumber) (f.mSerialNumber));
504	if (!f.mMaskedInterfaces.isNull())
505	CHECK_ERROR_BREAK (flt, COMSETTER(MaskedInterfaces) (f.mMaskedInterfaces));
506
507	if (f.mAction != USBDeviceFilterAction_Null)
508	CHECK_ERROR_BREAK (flt, COMSETTER(Action) (f.mAction));
509	}
510	else
511	{
512	SafeIfaceArray <IUSBDeviceFilter> coll;
513	CHECK_ERROR_BREAK (ctl, COMGETTER(DeviceFilters) (ComSafeArrayAsOutParam(coll)));
514
515	ComPtr <IUSBDeviceFilter> flt = coll[cmd.mIndex];
516
517	if (!f.mName.isEmpty())
518	CHECK_ERROR_BREAK (flt, COMSETTER(Name) (f.mName));
519	if (!f.mActive.isNull())
520	CHECK_ERROR_BREAK (flt, COMSETTER(Active) (f.mActive));
521	if (!f.mVendorId.isEmpty())
522	CHECK_ERROR_BREAK (flt, COMSETTER(VendorId) (f.mVendorId));
523	if (!f.mProductId.isEmpty())
524	CHECK_ERROR_BREAK (flt, COMSETTER(ProductId) (f.mProductId));
525	if (!f.mRevision.isEmpty())
526	CHECK_ERROR_BREAK (flt, COMSETTER(Revision) (f.mRevision));
527	if (!f.mManufacturer.isEmpty())
528	CHECK_ERROR_BREAK (flt, COMSETTER(Manufacturer) (f.mManufacturer));
529	if (!f.mRemote.isEmpty())
530	CHECK_ERROR_BREAK (flt, COMSETTER(Remote) (f.mRemote));
531	if (!f.mSerialNumber.isEmpty())
532	CHECK_ERROR_BREAK (flt, COMSETTER(SerialNumber) (f.mSerialNumber));
533	if (!f.mMaskedInterfaces.isNull())
534	CHECK_ERROR_BREAK (flt, COMSETTER(MaskedInterfaces) (f.mMaskedInterfaces));
535	}
536	break;
537	}
538	case USBFilterCmd::Remove:
539	{
540	if (cmd.mGlobal)
541	{
542	ComPtr <IHostUSBDeviceFilter> flt;
543	CHECK_ERROR_BREAK (host, RemoveUSBDeviceFilter (cmd.mIndex));
544	}
545	else
546	{
547	ComPtr <IUSBDeviceFilter> flt;
548	CHECK_ERROR_BREAK (ctl, RemoveDeviceFilter (cmd.mIndex, flt.asOutParam()));
549	}
550	break;
551	}
552	default:
553	break;
554	}
555
556	if (cmd.mMachine)
557	{
558	if (SUCCEEDED (rc))
559	{
560	/* commit the session */
561	CHECK_ERROR(cmd.mMachine, SaveSettings());
562	}
563	/* close the session */
564	a->session->UnlockMachine();
565	}
566
567	return SUCCEEDED (rc) ? 0 : 1;
568	}
569	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

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source: vbox/trunk/src/VBox/Frontends/VBoxManage/VBoxManageUSB.cpp@ 31713

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