GuestDirectoryImpl.cpp@ 99073

Last change on this file since 99073 was 99073, checked in by vboxsync, 2 years ago
Guest Control/Main: Always dereference symlinks by default when opening directories, as we want to show its contents rather than working directly on the link.
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1	/* $Id: GuestDirectoryImpl.cpp 99073 2023-03-20 17:34:02Z vboxsync $ */
2	/** @file
3	* VirtualBox Main - Guest directory handling.
4	*/
5
6	/*
7	* Copyright (C) 2012-2023 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
29	/*********************************************************************************************************************************
30	* Header Files *
31	*********************************************************************************************************************************/
32	#define LOG_GROUP LOG_GROUP_MAIN_GUESTDIRECTORY
33	#include "LoggingNew.h"
34
35	#ifndef VBOX_WITH_GUEST_CONTROL
36	# error "VBOX_WITH_GUEST_CONTROL must defined in this file"
37	#endif
38	#include "GuestImpl.h"
39	#include "GuestDirectoryImpl.h"
40	#include "GuestSessionImpl.h"
41	#include "GuestCtrlImplPrivate.h"
42	#include "VirtualBoxErrorInfoImpl.h"
43
44	#include "Global.h"
45	#include "AutoCaller.h"
46	#include "VBoxEvents.h"
47
48	#include <VBox/com/array.h>
49	#include <VBox/com/listeners.h>
50	#include <VBox/AssertGuest.h>
51
52
53	/**
54	* Internal listener class to serve events in an
55	* active manner, e.g. without polling delays.
56	*/
57	class GuestDirectoryListener
58	{
59	public:
60
61	GuestDirectoryListener(void)
62	{
63	}
64
65	virtual ~GuestDirectoryListener()
66	{
67	}
68
69	HRESULT init(GuestDirectory *pDir)
70	{
71	AssertPtrReturn(pDir, E_POINTER);
72	mDir = pDir;
73	return S_OK;
74	}
75
76	void uninit(void)
77	{
78	mDir = NULL;
79	}
80
81	STDMETHOD(HandleEvent)(VBoxEventType_T aType, IEvent *aEvent)
82	{
83	switch (aType)
84	{
85	case VBoxEventType_OnGuestDirectoryStateChanged:
86	RT_FALL_THROUGH();
87	case VBoxEventType_OnGuestDirectoryRead:
88	{
89	AssertPtrReturn(mDir, E_POINTER);
90	int vrc2 = mDir->signalWaitEvent(aType, aEvent);
91	RT_NOREF(vrc2);
92	#ifdef DEBUG_andy
93	LogFlowFunc(("Signalling events of type=%RU32, dir=%p resulted in vrc=%Rrc\n",
94	aType, mDir, vrc2));
95	#endif
96	break;
97	}
98
99	default:
100	AssertMsgFailed(("Unhandled event %RU32\n", aType));
101	break;
102	}
103
104	return S_OK;
105	}
106
107	private:
108
109	/** Weak pointer to the guest directory object to listen for. */
110	GuestDirectory *mDir;
111	};
112	typedef ListenerImpl<GuestDirectoryListener, GuestDirectory *> GuestDirectoryListenerImpl;
113
114	VBOX_LISTENER_DECLARE(GuestDirectoryListenerImpl)
115
116	// constructor / destructor
117	/////////////////////////////////////////////////////////////////////////////
118
119	DEFINE_EMPTY_CTOR_DTOR(GuestDirectory)
120
121	HRESULT GuestDirectory::FinalConstruct(void)
122	{
123	LogFlowThisFunc(("\n"));
124	return BaseFinalConstruct();
125	}
126
127	void GuestDirectory::FinalRelease(void)
128	{
129	LogFlowThisFuncEnter();
130	uninit();
131	BaseFinalRelease();
132	LogFlowThisFuncLeave();
133	}
134
135	// public initializer/uninitializer for internal purposes only
136	/////////////////////////////////////////////////////////////////////////////
137
138	int GuestDirectory::init(Console pConsole, GuestSession pSession, ULONG aObjectID, const GuestDirectoryOpenInfo &openInfo)
139	{
140	LogFlowThisFunc(("pConsole=%p, pSession=%p, aObjectID=%RU32, strPath=%s, enmFilter=%#x, fFlags=%x\n",
141	pConsole, pSession, aObjectID, openInfo.mPath.c_str(), openInfo.menmFilter, openInfo.mFlags));
142
143	AssertPtrReturn(pConsole, VERR_INVALID_POINTER);
144	AssertPtrReturn(pSession, VERR_INVALID_POINTER);
145
146	/* Enclose the state transition NotReady->InInit->Ready. */
147	AutoInitSpan autoInitSpan(this);
148	AssertReturn(autoInitSpan.isOk(), VERR_OBJECT_DESTROYED);
149
150	int vrc = bindToSession(pConsole, pSession, aObjectID);
151	if (RT_SUCCESS(vrc))
152	{
153	mSession = pSession;
154	mObjectID = aObjectID;
155
156	mData.mOpenInfo = openInfo;
157	mData.mStatus = DirectoryStatus_Undefined;
158	mData.mLastError = VINF_SUCCESS;
159
160	unconst(mEventSource).createObject();
161	HRESULT hr = mEventSource->init();
162	if (FAILED(hr))
163	vrc = VERR_COM_UNEXPECTED;
164	}
165
166	if (RT_SUCCESS(vrc))
167	{
168	try
169	{
170	GuestDirectoryListener *pListener = new GuestDirectoryListener();
171	ComObjPtr<GuestDirectoryListenerImpl> thisListener;
172	HRESULT hr = thisListener.createObject();
173	if (SUCCEEDED(hr))
174	hr = thisListener->init(pListener, this);
175
176	if (SUCCEEDED(hr))
177	{
178	com::SafeArray <VBoxEventType_T> eventTypes;
179	eventTypes.push_back(VBoxEventType_OnGuestDirectoryStateChanged);
180	eventTypes.push_back(VBoxEventType_OnGuestDirectoryRead);
181	hr = mEventSource->RegisterListener(thisListener,
182	ComSafeArrayAsInParam(eventTypes),
183	TRUE /* Active listener */);
184	if (SUCCEEDED(hr))
185	{
186	vrc = baseInit();
187	if (RT_SUCCESS(vrc))
188	{
189	mLocalListener = thisListener;
190	}
191	}
192	else
193	vrc = VERR_COM_UNEXPECTED;
194	}
195	else
196	vrc = VERR_COM_UNEXPECTED;
197	}
198	catch(std::bad_alloc &)
199	{
200	vrc = VERR_NO_MEMORY;
201	}
202	}
203
204	/* Confirm a successful initialization when it's the case. */
205	if (RT_SUCCESS(vrc))
206	autoInitSpan.setSucceeded();
207	else
208	autoInitSpan.setFailed();
209
210	LogFlowFuncLeaveRC(vrc);
211	return vrc;
212	}
213
214	/**
215	* Uninitializes the instance.
216	* Called from FinalRelease().
217	*/
218	void GuestDirectory::uninit(void)
219	{
220	LogFlowThisFuncEnter();
221
222	/* Enclose the state transition Ready->InUninit->NotReady. */
223	AutoUninitSpan autoUninitSpan(this);
224	if (autoUninitSpan.uninitDone())
225	return;
226
227	LogFlowThisFuncLeave();
228	}
229
230	// implementation of private wrapped getters/setters for attributes
231	/////////////////////////////////////////////////////////////////////////////
232
233	HRESULT GuestDirectory::getDirectoryName(com::Utf8Str &aDirectoryName)
234	{
235	LogFlowThisFuncEnter();
236
237	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
238
239	aDirectoryName = mData.mOpenInfo.mPath;
240
241	return S_OK;
242	}
243
244	HRESULT GuestDirectory::getEventSource(ComPtr<IEventSource> &aEventSource)
245	{
246	/* No need to lock - lifetime constant. */
247	mEventSource.queryInterfaceTo(aEventSource.asOutParam());
248
249	return S_OK;
250	}
251
252	HRESULT GuestDirectory::getFilter(com::Utf8Str &aFilter)
253	{
254	LogFlowThisFuncEnter();
255
256	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
257
258	aFilter = mData.mOpenInfo.mFilter;
259
260	return S_OK;
261	}
262
263	HRESULT GuestDirectory::getId(ULONG *aId)
264	{
265	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
266
267	*aId = mObjectID;
268
269	return S_OK;
270	}
271
272	HRESULT GuestDirectory::getStatus(DirectoryStatus_T *aStatus)
273	{
274	LogFlowThisFuncEnter();
275
276	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
277
278	*aStatus = mData.mStatus;
279
280	return S_OK;
281	}
282
283	// private methods
284	/////////////////////////////////////////////////////////////////////////////
285
286	/**
287	* Entry point for guest side directory callbacks.
288	*
289	* @returns VBox status code.
290	* @param pCbCtx Host callback context.
291	* @param pSvcCb Host callback data.
292	*/
293	int GuestDirectory::i_callbackDispatcher(PVBOXGUESTCTRLHOSTCBCTX pCbCtx, PVBOXGUESTCTRLHOSTCALLBACK pSvcCb)
294	{
295	AssertPtrReturn(pCbCtx, VERR_INVALID_POINTER);
296	AssertPtrReturn(pSvcCb, VERR_INVALID_POINTER);
297
298	LogFlowThisFunc(("strPath=%s, uContextID=%RU32, uMessage=%RU32, pSvcCb=%p\n",
299	mData.mOpenInfo.mPath.c_str(), pCbCtx->uContextID, pCbCtx->uMessage, pSvcCb));
300
301	int vrc;
302	switch (pCbCtx->uMessage)
303	{
304	case GUEST_MSG_DISCONNECTED:
305	/** @todo vrc = i_onGuestDisconnected(pCbCtx, pSvcCb); */
306	vrc = VINF_SUCCESS; /// @todo To be implemented
307	break;
308
309	case GUEST_MSG_DIR_NOTIFY:
310	{
311	vrc = i_onDirNotify(pCbCtx, pSvcCb);
312	break;
313	}
314
315	default:
316	/* Silently ignore not implemented functions. */
317	vrc = VERR_NOT_SUPPORTED;
318	break;
319	}
320
321	LogFlowFuncLeaveRC(vrc);
322	return vrc;
323	}
324
325	/**
326	* Opens the directory on the guest side.
327	*
328	* @return VBox status code.
329	* @param pvrcGuest Where to store the guest result code in case VERR_GSTCTL_GUEST_ERROR is returned.
330	*/
331	int GuestDirectory::i_open(int *pvrcGuest)
332	{
333	int vrc;
334	#ifdef VBOX_WITH_GSTCTL_TOOLBOX_AS_CMDS
335	if ((mSession->i_getParent()->i_getGuestControlFeatures0() & VBOX_GUESTCTRL_GF_0_TOOLBOX_AS_CMDS))
336	{
337	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
338
339	GuestWaitEvent *pEvent = NULL;
340	GuestEventTypes eventTypes;
341	try
342	{
343	eventTypes.push_back(VBoxEventType_OnGuestDirectoryStateChanged);
344
345	vrc = registerWaitEvent(eventTypes, &pEvent);
346	}
347	catch (std::bad_alloc &)
348	{
349	vrc = VERR_NO_MEMORY;
350	}
351
352	if (RT_FAILURE(vrc))
353	return vrc;
354
355	/* Prepare HGCM call. */
356	VBOXHGCMSVCPARM paParms[8];
357	int i = 0;
358	HGCMSvcSetU32(&paParms[i++], pEvent->ContextID());
359	HGCMSvcSetStr(&paParms[i++], mData.mOpenInfo.mPath.c_str());
360	HGCMSvcSetU32(&paParms[i++], mData.mOpenInfo.menmFilter);
361	HGCMSvcSetU32(&paParms[i++], mData.mOpenInfo.mFlags);
362	HGCMSvcSetU32(&paParms[i++], GSTCTLFSOBJATTRADD_UNIX /* Implicit */);
363	HGCMSvcSetU32(&paParms[i++], GSTCTL_PATH_F_ON_LINK /* Ditto */ );
364
365	alock.release(); /* Drop lock before sending. */
366
367	vrc = sendMessage(HOST_MSG_DIR_OPEN, i, paParms);
368	if (RT_SUCCESS(vrc))
369	vrc = i_waitForStatusChange(pEvent, 30 * 1000, NULL /* FileStatus */, pvrcGuest);
370	}
371	else
372	#endif /* VBOX_WITH_GSTCTL_TOOLBOX_AS_CMDS */
373	{
374	vrc = i_openViaToolbox(pvrcGuest);
375	}
376
377	return vrc;
378	}
379
380	#ifdef VBOX_WITH_GSTCTL_TOOLBOX_SUPPORT
381	/**
382	* Opens the directory on the guest side (legacy version).
383	*
384	* @returns VBox status code.
385	* @param pvrcGuest Where to store the guest result code in case VERR_GSTCTL_GUEST_ERROR is returned.
386	*
387	* @note This uses an own guest process via the built-in toolbox in VBoxSerivce.
388	*/
389	int GuestDirectory::i_openViaToolbox(int *pvrcGuest)
390	{
391	/* Start the directory process on the guest. */
392	GuestProcessStartupInfo procInfo;
393	procInfo.mName.printf(tr("Opening directory \"%s\""), mData.mOpenInfo.mPath.c_str());
394	procInfo.mTimeoutMS = 5 * 60 * 1000; /* 5 minutes timeout. */
395	procInfo.mFlags = ProcessCreateFlag_WaitForStdOut;
396	procInfo.mExecutable= Utf8Str(VBOXSERVICE_TOOL_LS);
397
398	procInfo.mArguments.push_back(procInfo.mExecutable);
399	procInfo.mArguments.push_back(Utf8Str("--machinereadable"));
400	/* We want the long output format which contains all the object details. */
401	procInfo.mArguments.push_back(Utf8Str("-l"));
402	/* Always dereference symlinks by default when opening directories, as we want to show its
403	* contents rather than working directly on the link.
404	*
405	* Newer Linux distros such as Ubuntu 22.10 symlink /bin to /usr/bin, for example. */
406	if (!(mData.mOpenInfo.mFlags & DirectoryOpenFlag_NoSymlinks)) /* Check if the caller explicitly forbids this. */
407	procInfo.mArguments.push_back(Utf8Str("--dereference"));
408	/** @todo Recursion support? */
409	procInfo.mArguments.push_back(mData.mOpenInfo.mPath); /* The directory we want to open. */
410
411	/*
412	* Start the process synchronously and keep it around so that we can use
413	* it later in subsequent read() calls.
414	*/
415	int vrc = mData.mProcessTool.init(mSession, procInfo, false /fAsync/, NULL /pvrcGuest/);
416	if (RT_SUCCESS(vrc))
417	{
418	/* As we need to know if the directory we were about to open exists and and is accessible,
419	* do the first read here in order to return a meaningful status here. */
420	int vrcGuest = VERR_IPE_UNINITIALIZED_STATUS;
421	vrc = i_readInternal(mData.mObjData, &vrcGuest);
422	if (RT_FAILURE(vrc))
423	{
424	/*
425	* We need to actively terminate our process tool in case of an error here,
426	* as this otherwise would be done on (directory) object destruction implicitly.
427	* This in turn then will run into a timeout, as the directory object won't be
428	* around anymore at that time. Ugly, but that's how it is for the moment.
429	*/
430	/* ignore rc / mData.mProcessTool.terminate(30 RT_MS_1SEC, NULL /* pvrcGuest */);
431	}
432
433	if (pvrcGuest)
434	*pvrcGuest = vrcGuest;
435	}
436
437	return vrc;
438	}
439	#endif /* VBOX_WITH_GSTCTL_TOOLBOX_SUPPORT */
440
441	/**
442	* Called when the guest side notifies the host of a directory event.
443	*
444	* @returns VBox status code.
445	* @param pCbCtx Host callback context.
446	* @param pSvcCbData Host callback data.
447	*/
448	int GuestDirectory::i_onDirNotify(PVBOXGUESTCTRLHOSTCBCTX pCbCtx, PVBOXGUESTCTRLHOSTCALLBACK pSvcCbData)
449	{
450	#ifndef VBOX_WITH_GSTCTL_TOOLBOX_AS_CMDS
451	RT_NOREF(pCbCtx, pSvcCbData);
452	return VERR_NOT_SUPPORTED;
453	#else
454	AssertPtrReturn(pCbCtx, VERR_INVALID_POINTER);
455	AssertPtrReturn(pSvcCbData, VERR_INVALID_POINTER);
456
457	LogFlowThisFuncEnter();
458
459	if (pSvcCbData->mParms < 3)
460	return VERR_INVALID_PARAMETER;
461
462	int idx = 1; /* Current parameter index. */
463	CALLBACKDATA_DIR_NOTIFY dataCb;
464	RT_ZERO(dataCb);
465	/* pSvcCb->mpaParms[0] always contains the context ID. */
466	HGCMSvcGetU32(&pSvcCbData->mpaParms[idx++], &dataCb.uType);
467	HGCMSvcGetU32(&pSvcCbData->mpaParms[idx++], &dataCb.rc);
468
469	int vrcGuest = (int)dataCb.rc; /* uint32_t vs. int. */
470
471	LogFlowThisFunc(("uType=%RU32, vrcGuest=%Rrc\n", dataCb.uType, vrcGuest));
472
473	if (RT_FAILURE(vrcGuest))
474	{
475	/** @todo Set status? */
476
477	/* Ignore return code, as the event to signal might not be there (anymore). */
478	signalWaitEventInternal(pCbCtx, vrcGuest, NULL /* pPayload */);
479	return VINF_SUCCESS; /* Report to the guest. */
480	}
481
482	int vrc = VERR_NOT_SUPPORTED; /* Play safe by default. */
483
484	ComObjPtr<VirtualBoxErrorInfo> errorInfo;
485	HRESULT hrc = errorInfo.createObject();
486	ComAssertComRCRet(hrc, VERR_COM_UNEXPECTED);
487	if (RT_FAILURE(vrcGuest))
488	{
489	hrc = errorInfo->initEx(VBOX_E_GSTCTL_GUEST_ERROR, vrcGuest,
490	COM_IIDOF(IGuestDirectory), getComponentName(),
491	i_guestErrorToString(vrcGuest, mData.mOpenInfo.mPath.c_str()));
492	ComAssertComRCRet(hrc, VERR_COM_UNEXPECTED);
493	}
494
495	switch (dataCb.uType)
496	{
497	case GUEST_DIR_NOTIFYTYPE_ERROR:
498	{
499	vrc = i_setStatus(DirectoryStatus_Error, vrcGuest);
500	break;
501	}
502
503	case GUEST_DIR_NOTIFYTYPE_OPEN:
504	{
505	AssertBreakStmt(pSvcCbData->mParms >= 4, vrc = VERR_INVALID_PARAMETER);
506	vrc = HGCMSvcGetU32(&pSvcCbData->mpaParms[idx++], &dataCb.u.open.uHandle /* Guest native file handle */);
507	AssertRCBreak(vrc);
508	vrc = i_setStatus(DirectoryStatus_Open, vrcGuest);
509	break;
510	}
511
512	case GUEST_DIR_NOTIFYTYPE_CLOSE:
513	{
514	vrc = i_setStatus(DirectoryStatus_Close, vrcGuest);
515	break;
516	}
517
518	case GUEST_DIR_NOTIFYTYPE_READ:
519	{
520	ASSERT_GUEST_MSG_STMT_BREAK(pSvcCbData->mParms == 6, ("mParms=%u\n", pSvcCbData->mParms),
521	vrc = VERR_WRONG_PARAMETER_COUNT);
522	ASSERT_GUEST_MSG_STMT_BREAK(pSvcCbData->mpaParms[idx].type == VBOX_HGCM_SVC_PARM_PTR,
523	("type=%u\n", pSvcCbData->mpaParms[idx].type),
524	vrc = VERR_WRONG_PARAMETER_TYPE);
525	PGSTCTLDIRENTRYEX pEntry;
526	uint32_t cbEntry;
527	vrc = HGCMSvcGetPv(&pSvcCbData->mpaParms[idx++], (void **)&pEntry, &cbEntry);
528	AssertRCBreak(vrc);
529	AssertBreakStmt( cbEntry >= RT_UOFFSETOF(GSTCTLDIRENTRYEX, szName[2])
530	&& cbEntry <= GSTCTL_DIRENTRY_MAX_SIZE, VERR_INVALID_PARAMETER);
531	dataCb.u.read.pEntry = (PGSTCTLDIRENTRYEX)RTMemDup(pEntry, cbEntry);
532	AssertPtrBreakStmt(dataCb.u.read.pEntry, vrc = VERR_NO_MEMORY);
533	dataCb.u.read.cbEntry = cbEntry;
534
535	char *pszUser;
536	uint32_t cbUser;
537	vrc = HGCMSvcGetStr(&pSvcCbData->mpaParms[idx++], &pszUser, &cbUser);
538	AssertRCBreak(vrc);
539	dataCb.u.read.pszUser = RTStrDup(pszUser);
540	AssertPtrBreakStmt(dataCb.u.read.pszUser, vrc = VERR_NO_MEMORY);
541	dataCb.u.read.cbUser = cbUser;
542
543	char *pszGroups;
544	uint32_t cbGroups;
545	vrc = HGCMSvcGetStr(&pSvcCbData->mpaParms[idx++], &pszGroups, &cbGroups);
546	AssertRCBreak(vrc);
547	dataCb.u.read.pszGroups = RTStrDup(pszGroups);
548	AssertPtrBreakStmt(dataCb.u.read.pszGroups, vrc = VERR_NO_MEMORY);
549	dataCb.u.read.cbGroups = cbGroups;
550
551	/** @todo ACLs not implemented yet. */
552
553	GuestFsObjData fsObjData(dataCb.u.read.pEntry->szName);
554	vrc = fsObjData.FromGuestFsObjInfo(&dataCb.u.read.pEntry->Info);
555	AssertRCBreak(vrc);
556	ComObjPtr<GuestFsObjInfo> ptrFsObjInfo;
557	hrc = ptrFsObjInfo.createObject();
558	ComAssertComRCBreak(hrc, vrc = VERR_COM_UNEXPECTED);
559	vrc = ptrFsObjInfo->init(fsObjData);
560	AssertRCBreak(vrc);
561
562	::FireGuestDirectoryReadEvent(mEventSource, mSession, this,
563	dataCb.u.read.pEntry->szName, ptrFsObjInfo, dataCb.u.read.pszUser, dataCb.u.read.pszGroups);
564	break;
565	}
566
567	case GUEST_DIR_NOTIFYTYPE_REWIND:
568	{
569	/* Note: This does not change the overall status of the directory (i.e. open). */
570	::FireGuestDirectoryStateChangedEvent(mEventSource, mSession, this, DirectoryStatus_Rewind, errorInfo);
571	break;
572	}
573
574	default:
575	AssertFailed();
576	break;
577	}
578
579	try
580	{
581	if (RT_SUCCESS(vrc))
582	{
583	GuestWaitEventPayload payload(dataCb.uType, &dataCb, sizeof(dataCb));
584
585	/* Ignore return code, as the event to signal might not be there (anymore). */
586	signalWaitEventInternal(pCbCtx, vrcGuest, &payload);
587	}
588	else /* OOM situation, wrong HGCM parameters or smth. not expected. */
589	{
590	/* Ignore return code, as the event to signal might not be there (anymore). */
591	signalWaitEventInternalEx(pCbCtx, vrc, 0 /* guestRc /, NULL / pPayload */);
592	}
593	}
594	catch (int vrcEx) /* Thrown by GuestWaitEventPayload constructor. */
595	{
596	/* Also try to signal the waiter, to let it know of the OOM situation.
597	* Ignore return code, as the event to signal might not be there (anymore). */
598	signalWaitEventInternalEx(pCbCtx, vrcEx, 0 /* guestRc /, NULL / pPayload */);
599	vrc = vrcEx;
600	}
601
602	LogFlowThisFunc(("uType=%RU32, rcGuest=%Rrc, vrc=%Rrc\n", dataCb.uType, vrcGuest, vrc));
603	return vrc;
604	#endif /* VBOX_WITH_GSTCTL_TOOLBOX_AS_CMDS */
605	}
606
607	/**
608	* Converts a given guest directory error to a string.
609	*
610	* @returns Error string.
611	* @param vrcGuest Guest directory error to return string for.
612	* @param pcszWhat Hint of what was involved when the error occurred.
613	*/
614	/* static */
615	Utf8Str GuestDirectory::i_guestErrorToString(int vrcGuest, const char *pcszWhat)
616	{
617	AssertPtrReturn(pcszWhat, "");
618
619	#define CASE_MSG(a_iRc, ...) \
620	case a_iRc: strErr.printf(__VA_ARGS__); break;
621
622	Utf8Str strErr;
623	switch (vrcGuest)
624	{
625	CASE_MSG(VERR_ACCESS_DENIED, tr("Access to guest directory \"%s\" is denied"), pcszWhat);
626	CASE_MSG(VERR_ALREADY_EXISTS, tr("Guest directory \"%s\" already exists"), pcszWhat);
627	CASE_MSG(VERR_CANT_CREATE, tr("Guest directory \"%s\" cannot be created"), pcszWhat);
628	CASE_MSG(VERR_DIR_NOT_EMPTY, tr("Guest directory \"%s\" is not empty"), pcszWhat);
629	default:
630	strErr.printf(tr("Error %Rrc for guest directory \"%s\" occurred\n"), vrcGuest, pcszWhat);
631	break;
632	}
633
634	#undef CASE_MSG
635
636	return strErr;
637	}
638
639	/**
640	* @copydoc GuestObject::i_onUnregister
641	*/
642	int GuestDirectory::i_onUnregister(void)
643	{
644	LogFlowThisFuncEnter();
645
646	int vrc = VINF_SUCCESS;
647
648	LogFlowFuncLeaveRC(vrc);
649	return vrc;
650	}
651
652	/**
653	* @copydoc GuestObject::i_onSessionStatusChange
654	*/
655	int GuestDirectory::i_onSessionStatusChange(GuestSessionStatus_T enmSessionStatus)
656	{
657	RT_NOREF(enmSessionStatus);
658
659	LogFlowThisFuncEnter();
660
661	int vrc = VINF_SUCCESS;
662
663	LogFlowFuncLeaveRC(vrc);
664	return vrc;
665	}
666
667	/**
668	* Closes this guest directory and removes it from the
669	* guest session's directory list.
670	*
671	* @return VBox status code.
672	* @param pvrcGuest Where to store the guest result code in case VERR_GSTCTL_GUEST_ERROR is returned.
673	*/
674	int GuestDirectory::i_close(int *pvrcGuest)
675	{
676	int vrc;
677	#ifdef VBOX_WITH_GSTCTL_TOOLBOX_AS_CMDS
678	if (mSession->i_getParent()->i_getGuestControlFeatures0() & VBOX_GUESTCTRL_GF_0_TOOLBOX_AS_CMDS)
679	{
680	GuestWaitEvent *pEvent = NULL;
681	GuestEventTypes eventTypes;
682	try
683	{
684	eventTypes.push_back(VBoxEventType_OnGuestDirectoryStateChanged);
685
686	vrc = registerWaitEvent(eventTypes, &pEvent);
687	}
688	catch (std::bad_alloc &)
689	{
690	vrc = VERR_NO_MEMORY;
691	}
692
693	if (RT_FAILURE(vrc))
694	return vrc;
695
696	/* Prepare HGCM call. */
697	VBOXHGCMSVCPARM paParms[2];
698	int i = 0;
699	HGCMSvcSetU32(&paParms[i++], pEvent->ContextID());
700	HGCMSvcSetU32(&paParms[i++], mObjectID /* Guest directory handle */);
701
702	vrc = sendMessage(HOST_MSG_DIR_CLOSE, i, paParms);
703	if (RT_SUCCESS(vrc))
704	{
705	vrc = pEvent->Wait(30 * 1000);
706	if (RT_SUCCESS(vrc))
707	{
708	// Nothing to do here.
709	}
710	else if (pEvent->HasGuestError() && pvrcGuest)
711	*pvrcGuest = pEvent->GuestResult();
712	}
713	}
714	else
715	#endif /* VBOX_WITH_GSTCTL_TOOLBOX_AS_CMDS */
716	{
717	vrc = i_closeViaToolbox(pvrcGuest);
718	}
719
720	AssertPtr(mSession);
721	int vrc2 = mSession->i_directoryUnregister(this);
722	if (RT_SUCCESS(vrc))
723	vrc = vrc2;
724
725	LogFlowThisFunc(("Returning vrc=%Rrc\n", vrc));
726	return vrc;
727	}
728
729	#ifdef VBOX_WITH_GSTCTL_TOOLBOX_SUPPORT
730	/**
731	* Closes this guest directory and removes it from the guest session's directory list (legacy version).
732	*
733	* @return VBox status code.
734	* @param pvrcGuest Where to store the guest result code in case VERR_GSTCTL_GUEST_ERROR is returned.
735	*
736	* @note This uses an own guest process via the built-in toolbox in VBoxSerivce.
737	*/
738	int GuestDirectory::i_closeViaToolbox(int *pvrcGuest)
739	{
740	return mData.mProcessTool.terminate(30 * 1000 /* 30s timeout */, pvrcGuest);
741	}
742	#endif /* VBOX_WITH_GSTCTL_TOOLBOX_SUPPORT */
743
744	/**
745	* Reads the next directory entry, internal version.
746	*
747	* @return VBox status code. Will return VERR_NO_MORE_FILES if no more entries are available.
748	* @param objData Where to store the read directory entry as internal object data.
749	* @param pvrcGuest Where to store the guest result code in case VERR_GSTCTL_GUEST_ERROR is returned.
750	*/
751	int GuestDirectory::i_readInternal(GuestFsObjData &objData, int *pvrcGuest)
752	{
753	AssertPtrReturn(pvrcGuest, VERR_INVALID_POINTER);
754
755	int vrc;
756
757	#ifdef VBOX_WITH_GSTCTL_TOOLBOX_AS_CMDS
758	if (mSession->i_getParent()->i_getGuestControlFeatures0() & VBOX_GUESTCTRL_GF_0_TOOLBOX_AS_CMDS)
759	{
760	GuestWaitEvent *pEvent = NULL;
761	GuestEventTypes eventTypes;
762	try
763	{
764	vrc = registerWaitEvent(eventTypes, &pEvent);
765	}
766	catch (std::bad_alloc &)
767	{
768	vrc = VERR_NO_MEMORY;
769	}
770
771	if (RT_FAILURE(vrc))
772	return vrc;
773
774	/* Prepare HGCM call. */
775	VBOXHGCMSVCPARM paParms[4];
776	int i = 0;
777	HGCMSvcSetU32(&paParms[i++], pEvent->ContextID());
778	HGCMSvcSetU32(&paParms[i++], mObjectID /* Guest directory handle */);
779
780	vrc = sendMessage(HOST_MSG_DIR_READ, i, paParms);
781	if (RT_SUCCESS(vrc))
782	{
783	vrc = pEvent->Wait(30 * 1000);
784	if (RT_SUCCESS(vrc))
785	{
786	PCALLBACKDATA_DIR_NOTIFY const pDirNotify = (PCALLBACKDATA_DIR_NOTIFY)pEvent->Payload().Raw();
787	AssertPtrReturn(pDirNotify, VERR_INVALID_POINTER);
788	int vrcGuest = (int)pDirNotify->rc;
789	if (RT_SUCCESS(vrcGuest))
790	{
791	AssertReturn(pDirNotify->uType == GUEST_DIR_NOTIFYTYPE_READ, VERR_INVALID_PARAMETER);
792	AssertPtrReturn(pDirNotify->u.read.pEntry, VERR_INVALID_POINTER);
793	objData.Init(pDirNotify->u.read.pEntry->szName);
794	vrc = objData.FromGuestFsObjInfo(&pDirNotify->u.read.pEntry->Info,
795	pDirNotify->u.read.pszUser, pDirNotify->u.read.pszGroups);
796	RTMemFree(pDirNotify->u.read.pEntry);
797	RTStrFree(pDirNotify->u.read.pszUser);
798	RTStrFree(pDirNotify->u.read.pszGroups);
799	}
800	else
801	{
802	if (pvrcGuest)
803	*pvrcGuest = vrcGuest;
804	vrc = VERR_GSTCTL_GUEST_ERROR;
805	}
806	}
807	else if (pEvent->HasGuestError() && pvrcGuest)
808	*pvrcGuest = pEvent->GuestResult();
809	}
810	}
811	else
812	#endif /* VBOX_WITH_GSTCTL_TOOLBOX_AS_CMDS */
813	{
814	vrc = i_readInternalViaToolbox(objData, pvrcGuest);
815	}
816
817	LogFlowThisFunc(("Returning vrc=%Rrc\n", vrc));
818	return vrc;
819	}
820
821	#ifdef VBOX_WITH_GSTCTL_TOOLBOX_SUPPORT
822	/**
823	* Reads the next directory entry, internal version (legacy version).
824	*
825	* @return VBox status code. Will return VERR_NO_MORE_FILES if no more entries are available.
826	* @param objData Where to store the read directory entry as internal object data.
827	* @param pvrcGuest Where to store the guest result code in case VERR_GSTCTL_GUEST_ERROR is returned.
828	*
829	* @note This uses an own guest process via the built-in toolbox in VBoxSerivce.
830	*/
831	int GuestDirectory::i_readInternalViaToolbox(GuestFsObjData &objData, int *pvrcGuest)
832	{
833	GuestToolboxStreamBlock curBlock;
834	int vrc = mData.mProcessTool.waitEx(GUESTPROCESSTOOL_WAIT_FLAG_STDOUT_BLOCK, &curBlock, pvrcGuest);
835	if (RT_SUCCESS(vrc))
836	{
837	/*
838	* Note: The guest process can still be around to serve the next
839	* upcoming stream block next time.
840	*/
841	if (!mData.mProcessTool.isRunning())
842	vrc = mData.mProcessTool.getTerminationStatus(); /* Tool process is not running (anymore). Check termination status. */
843
844	if (RT_SUCCESS(vrc))
845	{
846	if (curBlock.GetCount()) /* Did we get content? */
847	{
848	if (curBlock.GetString("name"))
849	{
850	vrc = objData.FromToolboxLs(curBlock, true /* fLong */);
851	}
852	else
853	vrc = VERR_PATH_NOT_FOUND;
854	}
855	else
856	{
857	/* Nothing to read anymore. Tell the caller. */
858	vrc = VERR_NO_MORE_FILES;
859	}
860	}
861	}
862
863	return vrc;
864	}
865	#endif /* VBOX_WITH_GSTCTL_TOOLBOX_SUPPORT */
866
867	/**
868	* Reads the next directory entry.
869	*
870	* @return VBox status code. Will return VERR_NO_MORE_FILES if no more entries are available.
871	* @param fsObjInfo Where to store the read directory entry.
872	* @param pvrcGuest Where to store the guest result code in case VERR_GSTCTL_GUEST_ERROR is returned.
873	*/
874	int GuestDirectory::i_read(ComObjPtr<GuestFsObjInfo> &fsObjInfo, int *pvrcGuest)
875	{
876	AssertPtrReturn(pvrcGuest, VERR_INVALID_POINTER);
877
878	/* Create the FS info object. */
879	HRESULT hr = fsObjInfo.createObject();
880	if (FAILED(hr))
881	return VERR_COM_UNEXPECTED;
882
883	int vrc;
884
885	/* If we have a valid object data cache, read from it. */
886	if (mData.mObjData.mName.isNotEmpty())
887	{
888	vrc = fsObjInfo->init(mData.mObjData);
889	if (RT_SUCCESS(vrc))
890	{
891	mData.mObjData.mName = ""; /* Mark the object data as being empty (beacon). */
892	}
893	}
894	else /* Otherwise ask the guest for the next object data. */
895	{
896
897	GuestFsObjData objData;
898	vrc = i_readInternal(objData, pvrcGuest);
899	if (RT_SUCCESS(vrc))
900	vrc = fsObjInfo->init(objData);
901	}
902
903	LogFlowThisFunc(("Returning vrc=%Rrc\n", vrc));
904	return vrc;
905	}
906
907	/**
908	* Rewinds the directory reading.
909	*
910	* @returns VBox status code.
911	* @retval VERR_GSTCTL_GUEST_ERROR when an error from the guest side has been received.
912	* @param uTimeoutMS Timeout (in ms) to wait.
913	* @param pvrcGuest Where to store the guest result code in case VERR_GSTCTL_GUEST_ERROR is returned.
914	*/
915	int GuestDirectory::i_rewind(uint32_t uTimeoutMS, int *pvrcGuest)
916	{
917	RT_NOREF(pvrcGuest);
918	#ifndef VBOX_WITH_GSTCTL_TOOLBOX_AS_CMDS
919	RT_NOREF(uTimeoutMS, pvrcGuest);
920	#else
921	/* Only available for Guest Additions 7.1+. */
922	if (mSession->i_getParent()->i_getGuestControlFeatures0() & VBOX_GUESTCTRL_GF_0_TOOLBOX_AS_CMDS)
923	{
924	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
925
926	int vrc;
927
928	GuestWaitEvent *pEvent = NULL;
929	GuestEventTypes eventTypes;
930	try
931	{
932	eventTypes.push_back(VBoxEventType_OnGuestDirectoryStateChanged);
933	vrc = registerWaitEvent(eventTypes, &pEvent);
934	}
935	catch (std::bad_alloc &)
936	{
937	vrc = VERR_NO_MEMORY;
938	}
939
940	if (RT_FAILURE(vrc))
941	return vrc;
942
943	/* Prepare HGCM call. */
944	VBOXHGCMSVCPARM paParms[4];
945	int i = 0;
946	HGCMSvcSetU32(&paParms[i++], pEvent->ContextID());
947	HGCMSvcSetU32(&paParms[i++], mObjectID /* Directory handle */);
948
949	alock.release(); /* Drop lock before sending. */
950
951	vrc = sendMessage(HOST_MSG_DIR_REWIND, i, paParms);
952	if (RT_SUCCESS(vrc))
953	{
954	VBoxEventType_T evtType;
955	ComPtr<IEvent> pIEvent;
956	vrc = waitForEvent(pEvent, uTimeoutMS, &evtType, pIEvent.asOutParam());
957	if (RT_SUCCESS(vrc))
958	{
959	if (evtType == VBoxEventType_OnGuestDirectoryStateChanged)
960	{
961	ComPtr<IGuestDirectoryStateChangedEvent> pEvt = pIEvent;
962	Assert(!pEvt.isNull());
963	}
964	else
965	vrc = VWRN_GSTCTL_OBJECTSTATE_CHANGED;
966	}
967	else if (pEvent->HasGuestError()) /* Return guest vrc if available. */
968	vrc = pEvent->GuestResult();
969	}
970
971	unregisterWaitEvent(pEvent);
972	return vrc;
973	}
974	#endif /* VBOX_WITH_GSTCTL_TOOLBOX_AS_CMDS */
975
976	return VERR_NOT_SUPPORTED;
977	}
978
979	/**
980	* Sets the current internal directory object status.
981	*
982	* @returns VBox status code.
983	* @param enmStatus New directory status to set.
984	* @param vrcDir New result code to set.
985	*
986	* @note Takes the write lock.
987	*/
988	int GuestDirectory::i_setStatus(DirectoryStatus_T enmStatus, int vrcDir)
989	{
990	LogFlowThisFuncEnter();
991
992	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
993
994	LogFlowThisFunc(("oldStatus=%RU32, newStatus=%RU32, vrcDir=%Rrc\n", mData.mStatus, enmStatus, vrcDir));
995
996	#ifdef VBOX_STRICT
997	if (enmStatus == DirectoryStatus_Error)
998	AssertMsg(RT_FAILURE(vrcDir), ("Guest vrc must be an error (%Rrc)\n", vrcDir));
999	else
1000	AssertMsg(RT_SUCCESS(vrcDir), ("Guest vrc must not be an error (%Rrc)\n", vrcDir));
1001	#endif
1002
1003	if (mData.mStatus != enmStatus)
1004	{
1005	mData.mStatus = enmStatus;
1006	mData.mLastError = vrcDir;
1007
1008	ComObjPtr<VirtualBoxErrorInfo> errorInfo;
1009	HRESULT hrc = errorInfo.createObject();
1010	ComAssertComRCRet(hrc, VERR_COM_UNEXPECTED);
1011	if (RT_FAILURE(vrcDir))
1012	{
1013	hrc = errorInfo->initEx(VBOX_E_GSTCTL_GUEST_ERROR, vrcDir,
1014	COM_IIDOF(IGuestDirectory), getComponentName(),
1015	i_guestErrorToString(vrcDir, mData.mOpenInfo.mPath.c_str()));
1016	ComAssertComRCRet(hrc, VERR_COM_UNEXPECTED);
1017	}
1018	/* Note: On vrcDir success, errorInfo is set to S_OK and also sent via the event below. */
1019
1020	alock.release(); /* Release lock before firing off event. */
1021
1022	::FireGuestDirectoryStateChangedEvent(mEventSource, mSession, this, mData.mStatus, errorInfo);
1023	}
1024
1025	return VINF_SUCCESS;
1026	}
1027
1028	/**
1029	* Waits for a guest directory status change.
1030	*
1031	* @note Similar code in GuestFile::i_waitForStatusChange().
1032	*
1033	* @returns VBox status code.
1034	* @retval VERR_GSTCTL_GUEST_ERROR when an error from the guest side has been received.
1035	* @param pEvent Guest wait event to wait for.
1036	* @param uTimeoutMS Timeout (in ms) to wait.
1037	* @param penmStatus Where to return the directoy status on success.
1038	* @param prcGuest Where to return the guest error when VERR_GSTCTL_GUEST_ERROR was returned.
1039	*/
1040	int GuestDirectory::i_waitForStatusChange(GuestWaitEvent *pEvent, uint32_t uTimeoutMS,
1041	DirectoryStatus_T penmStatus, int prcGuest)
1042	{
1043	AssertPtrReturn(pEvent, VERR_INVALID_POINTER);
1044	/* penmStatus is optional. */
1045
1046	VBoxEventType_T evtType;
1047	ComPtr<IEvent> pIEvent;
1048	int vrc = waitForEvent(pEvent, uTimeoutMS, &evtType, pIEvent.asOutParam());
1049	if (RT_SUCCESS(vrc))
1050	{
1051	AssertReturn(evtType == VBoxEventType_OnGuestDirectoryStateChanged, VERR_WRONG_TYPE);
1052	ComPtr<IGuestDirectoryStateChangedEvent> pDirectoryEvent = pIEvent;
1053	AssertReturn(!pDirectoryEvent.isNull(), VERR_COM_UNEXPECTED);
1054
1055	HRESULT hr;
1056	if (penmStatus)
1057	{
1058	hr = pDirectoryEvent->COMGETTER(Status)(penmStatus);
1059	ComAssertComRC(hr);
1060	}
1061
1062	ComPtr<IVirtualBoxErrorInfo> errorInfo;
1063	hr = pDirectoryEvent->COMGETTER(Error)(errorInfo.asOutParam());
1064	ComAssertComRC(hr);
1065
1066	LONG lGuestRc;
1067	hr = errorInfo->COMGETTER(ResultDetail)(&lGuestRc);
1068	ComAssertComRC(hr);
1069
1070	LogFlowThisFunc(("resultDetail=%RI32 (%Rrc)\n", lGuestRc, lGuestRc));
1071
1072	if (RT_FAILURE((int)lGuestRc))
1073	vrc = VERR_GSTCTL_GUEST_ERROR;
1074
1075	if (prcGuest)
1076	*prcGuest = (int)lGuestRc;
1077	}
1078	/* waitForEvent may also return VERR_GSTCTL_GUEST_ERROR like we do above, so make prcGuest is set. */
1079	/** @todo Also see todo in GuestFile::i_waitForStatusChange(). */
1080	else if (vrc == VERR_GSTCTL_GUEST_ERROR && prcGuest)
1081	*prcGuest = pEvent->GuestResult();
1082	Assert(vrc != VERR_GSTCTL_GUEST_ERROR \|\| !prcGuest \|\| *prcGuest != (int)0xcccccccc);
1083
1084	return vrc;
1085	}
1086
1087	// implementation of public methods
1088	/////////////////////////////////////////////////////////////////////////////
1089	HRESULT GuestDirectory::close()
1090	{
1091	AutoCaller autoCaller(this);
1092	if (FAILED(autoCaller.hrc())) return autoCaller.hrc();
1093
1094	LogFlowThisFuncEnter();
1095
1096	HRESULT hrc = S_OK;
1097
1098	int vrcGuest = VERR_IPE_UNINITIALIZED_STATUS;
1099	int vrc = i_close(&vrcGuest);
1100	if (RT_FAILURE(vrc))
1101	{
1102	switch (vrc)
1103	{
1104	case VERR_GSTCTL_GUEST_ERROR:
1105	{
1106	GuestErrorInfo ge(GuestErrorInfo::Type_Directory, vrcGuest, mData.mOpenInfo.mPath.c_str());
1107	hrc = setErrorBoth(VBOX_E_IPRT_ERROR, vrcGuest, tr("Closing guest directory failed: %s"),
1108	GuestBase::getErrorAsString(ge).c_str());
1109	break;
1110	}
1111	case VERR_NOT_SUPPORTED:
1112	/* Silently skip old Guest Additions which do not support killing the
1113	* the guest directory handling process. */
1114	break;
1115
1116	default:
1117	hrc = setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
1118	tr("Closing guest directory \"%s\" failed: %Rrc"), mData.mOpenInfo.mPath.c_str(), vrc);
1119	break;
1120	}
1121	}
1122
1123	return hrc;
1124	}
1125
1126	HRESULT GuestDirectory::read(ComPtr<IFsObjInfo> &aObjInfo)
1127	{
1128	AutoCaller autoCaller(this);
1129	if (FAILED(autoCaller.hrc())) return autoCaller.hrc();
1130
1131	LogFlowThisFuncEnter();
1132
1133	HRESULT hrc = S_OK;
1134
1135	ComObjPtr<GuestFsObjInfo> fsObjInfo;
1136	int vrcGuest = VERR_IPE_UNINITIALIZED_STATUS;
1137	int vrc = i_read(fsObjInfo, &vrcGuest);
1138	if (RT_SUCCESS(vrc))
1139	{
1140	/* Return info object to the caller. */
1141	hrc = fsObjInfo.queryInterfaceTo(aObjInfo.asOutParam());
1142	}
1143	else
1144	{
1145	switch (vrc)
1146	{
1147	case VERR_GSTCTL_GUEST_ERROR:
1148	{
1149	GuestErrorInfo ge(
1150	#ifdef VBOX_WITH_GSTCTL_TOOLBOX_SUPPORT
1151	GuestErrorInfo::Type_ToolLs
1152	#else
1153	GuestErrorInfo::Type_Fs
1154	#endif
1155	, vrcGuest, mData.mOpenInfo.mPath.c_str());
1156	hrc = setErrorBoth(VBOX_E_IPRT_ERROR, vrcGuest, tr("Reading guest directory failed: %s"),
1157	GuestBase::getErrorAsString(ge).c_str());
1158	break;
1159	}
1160
1161	#ifdef VBOX_WITH_GSTCTL_TOOLBOX_SUPPORT
1162	case VERR_GSTCTL_PROCESS_EXIT_CODE:
1163	hrc = setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Reading guest directory \"%s\" failed: %Rrc"),
1164	mData.mOpenInfo.mPath.c_str(), mData.mProcessTool.getRc());
1165	break;
1166	#endif
1167	case VERR_PATH_NOT_FOUND:
1168	hrc = setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Reading guest directory \"%s\" failed: Path not found"),
1169	mData.mOpenInfo.mPath.c_str());
1170	break;
1171
1172	case VERR_NO_MORE_FILES:
1173	/* See SDK reference. */
1174	hrc = setErrorBoth(VBOX_E_OBJECT_NOT_FOUND, vrc, tr("Reading guest directory \"%s\" failed: No more entries"),
1175	mData.mOpenInfo.mPath.c_str());
1176	break;
1177
1178	default:
1179	hrc = setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Reading guest directory \"%s\" returned unhandled error: %Rrc\n"),
1180	mData.mOpenInfo.mPath.c_str(), vrc);
1181	break;
1182	}
1183	}
1184
1185	LogFlowThisFunc(("Returning hrc=%Rhrc / vrc=%Rrc\n", hrc, vrc));
1186	return hrc;
1187	}
1188
1189	HRESULT GuestDirectory::rewind(void)
1190	{
1191	AutoCaller autoCaller(this);
1192	if (FAILED(autoCaller.hrc())) return autoCaller.hrc();
1193
1194	int vrcGuest = VERR_IPE_UNINITIALIZED_STATUS;
1195	int vrc = i_rewind(30 * 1000 /* Timeout in ms */, &vrcGuest);
1196	if (RT_SUCCESS(vrc))
1197	return S_OK;
1198
1199	GuestErrorInfo ge(GuestErrorInfo::Type_Directory, vrcGuest, mData.mOpenInfo.mPath.c_str());
1200	return setErrorBoth(VBOX_E_IPRT_ERROR, vrcGuest, tr("Rewinding guest directory failed: %s"),
1201	GuestBase::getErrorAsString(ge).c_str());
1202	}
1203

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source: vbox/trunk/src/VBox/Main/src-client/GuestDirectoryImpl.cpp@ 99073

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