VBoxManageSnapshot.cpp@ 94234

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1	/* $Id: VBoxManageSnapshot.cpp 93115 2022-01-01 11:31:46Z vboxsync $ */
2	/** @file
3	* VBoxManage - The 'snapshot' command.
4	*/
5
6	/*
7	* Copyright (C) 2006-2022 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
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	#include <VBox/com/com.h>
23	#include <VBox/com/string.h>
24	#include <VBox/com/array.h>
25	#include <VBox/com/ErrorInfo.h>
26	#include <VBox/com/errorprint.h>
27
28	#include <VBox/com/VirtualBox.h>
29
30	#include <iprt/getopt.h>
31	#include <iprt/stream.h>
32	#include <iprt/time.h>
33
34	#include "VBoxManage.h"
35	using namespace com;
36
37	DECLARE_TRANSLATION_CONTEXT(Snapshot);
38
39	/**
40	* Helper function used with "VBoxManage snapshot ... dump". Gets called to find the
41	* snapshot in the machine's snapshot tree that uses a particular diff image child of
42	* a medium.
43	* Horribly inefficient since we keep re-querying the snapshots tree for each image,
44	* but this is for quick debugging only.
45	* @param pMedium
46	* @param pThisSnapshot
47	* @param pCurrentSnapshot
48	* @param uMediumLevel
49	* @param uSnapshotLevel
50	* @return
51	*/
52	bool FindAndPrintSnapshotUsingMedium(ComPtr<IMedium> &pMedium,
53	ComPtr<ISnapshot> &pThisSnapshot,
54	ComPtr<ISnapshot> &pCurrentSnapshot,
55	uint32_t uMediumLevel,
56	uint32_t uSnapshotLevel)
57	{
58	HRESULT rc;
59
60	do
61	{
62	// get snapshot machine so we can figure out which diff image this created
63	ComPtr<IMachine> pSnapshotMachine;
64	CHECK_ERROR_BREAK(pThisSnapshot, COMGETTER(Machine)(pSnapshotMachine.asOutParam()));
65
66	// get media attachments
67	SafeIfaceArray<IMediumAttachment> aAttachments;
68	CHECK_ERROR_BREAK(pSnapshotMachine, COMGETTER(MediumAttachments)(ComSafeArrayAsOutParam(aAttachments)));
69
70	for (uint32_t i = 0;
71	i < aAttachments.size();
72	++i)
73	{
74	ComPtr<IMediumAttachment> pAttach(aAttachments[i]);
75	DeviceType_T type;
76	CHECK_ERROR_BREAK(pAttach, COMGETTER(Type)(&type));
77	if (type == DeviceType_HardDisk)
78	{
79	ComPtr<IMedium> pMediumInSnapshot;
80	CHECK_ERROR_BREAK(pAttach, COMGETTER(Medium)(pMediumInSnapshot.asOutParam()));
81
82	if (pMediumInSnapshot == pMedium)
83	{
84	// get snapshot name
85	Bstr bstrSnapshotName;
86	CHECK_ERROR_BREAK(pThisSnapshot, COMGETTER(Name)(bstrSnapshotName.asOutParam()));
87
88	RTPrintf("%*s \"%ls\"%s\n",
89	50 + uSnapshotLevel * 2, "", // indent
90	bstrSnapshotName.raw(),
91	(pThisSnapshot == pCurrentSnapshot) ? " (CURSNAP)" : "");
92	return true; // found
93	}
94	}
95	}
96
97	// not found: then recurse into child snapshots
98	SafeIfaceArray<ISnapshot> aSnapshots;
99	CHECK_ERROR_BREAK(pThisSnapshot, COMGETTER(Children)(ComSafeArrayAsOutParam(aSnapshots)));
100
101	for (uint32_t i = 0;
102	i < aSnapshots.size();
103	++i)
104	{
105	ComPtr<ISnapshot> pChild(aSnapshots[i]);
106	if (FindAndPrintSnapshotUsingMedium(pMedium,
107	pChild,
108	pCurrentSnapshot,
109	uMediumLevel,
110	uSnapshotLevel + 1))
111	// found:
112	break;
113	}
114	} while (0);
115
116	return false;
117	}
118
119	/**
120	* Helper function used with "VBoxManage snapshot ... dump". Called from DumpSnapshot()
121	* for each hard disk attachment found in a virtual machine. This then writes out the
122	* root (base) medium for that hard disk attachment and recurses into the children
123	* tree of that medium, correlating it with the snapshots of the machine.
124	* @param pCurrentStateMedium constant, the medium listed in the current machine data (latest diff image).
125	* @param pMedium variant, initially the base medium, then a child of the base medium when recursing.
126	* @param pRootSnapshot constant, the root snapshot of the machine, if any; this then looks into the child snapshots.
127	* @param pCurrentSnapshot constant, the machine's current snapshot (so we can mark it in the output).
128	* @param uLevel variant, the recursion level for output indentation.
129	*/
130	void DumpMediumWithChildren(ComPtr<IMedium> &pCurrentStateMedium,
131	ComPtr<IMedium> &pMedium,
132	ComPtr<ISnapshot> &pRootSnapshot,
133	ComPtr<ISnapshot> &pCurrentSnapshot,
134	uint32_t uLevel)
135	{
136	HRESULT rc;
137	do
138	{
139	// print this medium
140	Bstr bstrMediumName;
141	CHECK_ERROR_BREAK(pMedium, COMGETTER(Name)(bstrMediumName.asOutParam()));
142	RTPrintf("%*s \"%ls\"%s\n",
143	uLevel * 2, "", // indent
144	bstrMediumName.raw(),
145	(pCurrentStateMedium == pMedium) ? " (CURSTATE)" : "");
146
147	// find and print the snapshot that uses this particular medium (diff image)
148	FindAndPrintSnapshotUsingMedium(pMedium, pRootSnapshot, pCurrentSnapshot, uLevel, 0);
149
150	// recurse into children
151	SafeIfaceArray<IMedium> aChildren;
152	CHECK_ERROR_BREAK(pMedium, COMGETTER(Children)(ComSafeArrayAsOutParam(aChildren)));
153	for (uint32_t i = 0;
154	i < aChildren.size();
155	++i)
156	{
157	ComPtr<IMedium> pChild(aChildren[i]);
158	DumpMediumWithChildren(pCurrentStateMedium, pChild, pRootSnapshot, pCurrentSnapshot, uLevel + 1);
159	}
160	} while (0);
161	}
162
163
164	/**
165	* Handles the 'snapshot myvm list' sub-command.
166	* @returns Exit code.
167	* @param pArgs The handler argument package.
168	* @param pMachine Reference to the VM (locked) we're operating on.
169	*/
170	static RTEXITCODE handleSnapshotList(HandlerArg *pArgs, ComPtr<IMachine> &pMachine)
171	{
172	static const RTGETOPTDEF g_aOptions[] =
173	{
174	{ "--details", 'D', RTGETOPT_REQ_NOTHING },
175	{ "--machinereadable", 'M', RTGETOPT_REQ_NOTHING },
176	};
177
178	VMINFO_DETAILS enmDetails = VMINFO_STANDARD;
179
180	int c;
181	RTGETOPTUNION ValueUnion;
182	RTGETOPTSTATE GetState;
183	RTGetOptInit(&GetState, pArgs->argc, pArgs->argv, g_aOptions, RT_ELEMENTS(g_aOptions), 2 /iArg/, 0 /fFlags/);
184	while ((c = RTGetOpt(&GetState, &ValueUnion)))
185	{
186	switch (c)
187	{
188	case 'D': enmDetails = VMINFO_FULL; break;
189	case 'M': enmDetails = VMINFO_MACHINEREADABLE; break;
190	default: return errorGetOpt(c, &ValueUnion);
191	}
192	}
193
194	ComPtr<ISnapshot> pSnapshot;
195	HRESULT hrc = pMachine->FindSnapshot(Bstr().raw(), pSnapshot.asOutParam());
196	if (FAILED(hrc))
197	{
198	RTPrintf(Snapshot::tr("This machine does not have any snapshots\n"));
199	return RTEXITCODE_FAILURE;
200	}
201	if (pSnapshot)
202	{
203	ComPtr<ISnapshot> pCurrentSnapshot;
204	CHECK_ERROR2I_RET(pMachine, COMGETTER(CurrentSnapshot)(pCurrentSnapshot.asOutParam()), RTEXITCODE_FAILURE);
205	hrc = showSnapshots(pSnapshot, pCurrentSnapshot, enmDetails);
206	if (FAILED(hrc))
207	return RTEXITCODE_FAILURE;
208	}
209	return RTEXITCODE_SUCCESS;
210	}
211
212	/**
213	* Implementation for "VBoxManage snapshot ... dump". This goes thru the machine's
214	* medium attachments and calls DumpMediumWithChildren() for each hard disk medium found,
215	* which then dumps the parent/child tree of that medium together with the corresponding
216	* snapshots.
217	* @param pMachine Machine to dump snapshots for.
218	*/
219	void DumpSnapshot(ComPtr<IMachine> &pMachine)
220	{
221	HRESULT rc;
222
223	do
224	{
225	// get root snapshot
226	ComPtr<ISnapshot> pSnapshot;
227	CHECK_ERROR_BREAK(pMachine, FindSnapshot(Bstr("").raw(), pSnapshot.asOutParam()));
228
229	// get current snapshot
230	ComPtr<ISnapshot> pCurrentSnapshot;
231	CHECK_ERROR_BREAK(pMachine, COMGETTER(CurrentSnapshot)(pCurrentSnapshot.asOutParam()));
232
233	// get media attachments
234	SafeIfaceArray<IMediumAttachment> aAttachments;
235	CHECK_ERROR_BREAK(pMachine, COMGETTER(MediumAttachments)(ComSafeArrayAsOutParam(aAttachments)));
236	for (uint32_t i = 0;
237	i < aAttachments.size();
238	++i)
239	{
240	ComPtr<IMediumAttachment> pAttach(aAttachments[i]);
241	DeviceType_T type;
242	CHECK_ERROR_BREAK(pAttach, COMGETTER(Type)(&type));
243	if (type == DeviceType_HardDisk)
244	{
245	ComPtr<IMedium> pCurrentStateMedium;
246	CHECK_ERROR_BREAK(pAttach, COMGETTER(Medium)(pCurrentStateMedium.asOutParam()));
247
248	ComPtr<IMedium> pBaseMedium;
249	CHECK_ERROR_BREAK(pCurrentStateMedium, COMGETTER(Base)(pBaseMedium.asOutParam()));
250
251	Bstr bstrBaseMediumName;
252	CHECK_ERROR_BREAK(pBaseMedium, COMGETTER(Name)(bstrBaseMediumName.asOutParam()));
253
254	RTPrintf(Snapshot::tr("[%RI32] Images and snapshots for medium \"%ls\"\n"), i, bstrBaseMediumName.raw());
255
256	DumpMediumWithChildren(pCurrentStateMedium,
257	pBaseMedium,
258	pSnapshot,
259	pCurrentSnapshot,
260	0);
261	}
262	}
263	} while (0);
264	}
265
266	typedef enum SnapshotUniqueFlags
267	{
268	SnapshotUniqueFlags_Null = 0,
269	SnapshotUniqueFlags_Number = RT_BIT(1),
270	SnapshotUniqueFlags_Timestamp = RT_BIT(2),
271	SnapshotUniqueFlags_Space = RT_BIT(16),
272	SnapshotUniqueFlags_Force = RT_BIT(30)
273	} SnapshotUniqueFlags;
274
275	static int parseSnapshotUniqueFlags(const char psz, SnapshotUniqueFlags pUnique)
276	{
277	int rc = VINF_SUCCESS;
278	unsigned uUnique = 0;
279	while (psz && *psz && RT_SUCCESS(rc))
280	{
281	size_t len;
282	const char *pszComma = strchr(psz, ',');
283	if (pszComma)
284	len = pszComma - psz;
285	else
286	len = strlen(psz);
287	if (len > 0)
288	{
289	if (!RTStrNICmp(psz, "number", len))
290	uUnique \|= SnapshotUniqueFlags_Number;
291	else if (!RTStrNICmp(psz, "timestamp", len))
292	uUnique \|= SnapshotUniqueFlags_Timestamp;
293	else if (!RTStrNICmp(psz, "space", len))
294	uUnique \|= SnapshotUniqueFlags_Space;
295	else if (!RTStrNICmp(psz, "force", len))
296	uUnique \|= SnapshotUniqueFlags_Force;
297	else
298	rc = VERR_PARSE_ERROR;
299	}
300	if (pszComma)
301	psz += len + 1;
302	else
303	psz += len;
304	}
305
306	if (RT_SUCCESS(rc))
307	*pUnique = (SnapshotUniqueFlags)uUnique;
308	return rc;
309	}
310
311	/**
312	* Implementation for all VBoxManage snapshot ... subcommands.
313	* @param a
314	* @return
315	*/
316	RTEXITCODE handleSnapshot(HandlerArg *a)
317	{
318	HRESULT rc;
319
320	/** @todo r=bird: sub-standard command line parsing here!
321	*
322	* 'VBoxManage snapshot empty take --help' takes a snapshot rather than display
323	* help as you would expect.
324	*
325	*/
326
327	/* we need at least a VM and a command */
328	if (a->argc < 2)
329	return errorSyntax(Snapshot::tr("Not enough parameters"));
330
331	/* the first argument must be the VM */
332	Bstr bstrMachine(a->argv[0]);
333	ComPtr<IMachine> pMachine;
334	CHECK_ERROR(a->virtualBox, FindMachine(bstrMachine.raw(),
335	pMachine.asOutParam()));
336	if (!pMachine)
337	return RTEXITCODE_FAILURE;
338
339	/* we have to open a session for this task (new or shared) */
340	CHECK_ERROR_RET(pMachine, LockMachine(a->session, LockType_Shared), RTEXITCODE_FAILURE);
341	do
342	{
343	/* replace the (read-only) IMachine object by a writable one */
344	ComPtr<IMachine> sessionMachine;
345	CHECK_ERROR_BREAK(a->session, COMGETTER(Machine)(sessionMachine.asOutParam()));
346
347	/* switch based on the command */
348	bool fDelete = false,
349	fRestore = false,
350	fRestoreCurrent = false;
351
352	if (!strcmp(a->argv[1], "take"))
353	{
354	setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_TAKE);
355
356	/* there must be a name */
357	if (a->argc < 3)
358	{
359	errorSyntax(Snapshot::tr("Missing snapshot name"));
360	rc = E_FAIL;
361	break;
362	}
363	Bstr name(a->argv[2]);
364
365	/* parse the optional arguments */
366	Bstr desc;
367	bool fPause = true; /* default is NO live snapshot */
368	SnapshotUniqueFlags enmUnique = SnapshotUniqueFlags_Null;
369	static const RTGETOPTDEF s_aTakeOptions[] =
370	{
371	{ "--description", 'd', RTGETOPT_REQ_STRING },
372	{ "-description", 'd', RTGETOPT_REQ_STRING },
373	{ "-desc", 'd', RTGETOPT_REQ_STRING },
374	{ "--pause", 'p', RTGETOPT_REQ_NOTHING },
375	{ "--live", 'l', RTGETOPT_REQ_NOTHING },
376	{ "--uniquename", 'u', RTGETOPT_REQ_STRING }
377	};
378	RTGETOPTSTATE GetOptState;
379	RTGetOptInit(&GetOptState, a->argc, a->argv, s_aTakeOptions, RT_ELEMENTS(s_aTakeOptions),
380	3, RTGETOPTINIT_FLAGS_NO_STD_OPTS);
381	int ch;
382	RTGETOPTUNION Value;
383	int vrc;
384	while ( SUCCEEDED(rc)
385	&& (ch = RTGetOpt(&GetOptState, &Value)))
386	{
387	switch (ch)
388	{
389	case 'p':
390	fPause = true;
391	break;
392
393	case 'l':
394	fPause = false;
395	break;
396
397	case 'd':
398	desc = Value.psz;
399	break;
400
401	case 'u':
402	vrc = parseSnapshotUniqueFlags(Value.psz, &enmUnique);
403	if (RT_FAILURE(vrc))
404	return errorArgument(Snapshot::tr("Invalid unique name description '%s'"), Value.psz);
405	break;
406
407	default:
408	errorGetOpt(ch, &Value);
409	rc = E_FAIL;
410	break;
411	}
412	}
413	if (FAILED(rc))
414	break;
415
416	if (enmUnique & (SnapshotUniqueFlags_Number \| SnapshotUniqueFlags_Timestamp))
417	{
418	ComPtr<ISnapshot> pSnapshot;
419	rc = sessionMachine->FindSnapshot(name.raw(),
420	pSnapshot.asOutParam());
421	if (SUCCEEDED(rc) \|\| (enmUnique & SnapshotUniqueFlags_Force))
422	{
423	/* there is a duplicate, need to create a unique name */
424	uint32_t count = 0;
425	RTTIMESPEC now;
426
427	if (enmUnique & SnapshotUniqueFlags_Number)
428	{
429	if (enmUnique & SnapshotUniqueFlags_Force)
430	count = 1;
431	else
432	count = 2;
433	RTTimeSpecSetNano(&now, 0); /* Shut up MSC */
434	}
435	else
436	RTTimeNow(&now);
437
438	while (count < 500)
439	{
440	Utf8Str suffix;
441	if (enmUnique & SnapshotUniqueFlags_Number)
442	suffix = Utf8StrFmt("%u", count);
443	else
444	{
445	RTTIMESPEC nowplus = now;
446	RTTimeSpecAddSeconds(&nowplus, count);
447	RTTIME stamp;
448	RTTimeExplode(&stamp, &nowplus);
449	suffix = Utf8StrFmt("%04u-%02u-%02uT%02u:%02u:%02uZ", stamp.i32Year, stamp.u8Month, stamp.u8MonthDay, stamp.u8Hour, stamp.u8Minute, stamp.u8Second);
450	}
451	Bstr tryName = name;
452	if (enmUnique & SnapshotUniqueFlags_Space)
453	tryName = BstrFmt("%ls %s", name.raw(), suffix.c_str());
454	else
455	tryName = BstrFmt("%ls%s", name.raw(), suffix.c_str());
456	count++;
457	rc = sessionMachine->FindSnapshot(tryName.raw(),
458	pSnapshot.asOutParam());
459	if (FAILED(rc))
460	{
461	name = tryName;
462	break;
463	}
464	}
465	if (SUCCEEDED(rc))
466	{
467	errorArgument(Snapshot::tr("Failed to generate a unique snapshot name"));
468	rc = E_FAIL;
469	break;
470	}
471	}
472	rc = S_OK;
473	}
474
475	ComPtr<IProgress> progress;
476	Bstr snapId;
477	CHECK_ERROR_BREAK(sessionMachine, TakeSnapshot(name.raw(), desc.raw(),
478	fPause, snapId.asOutParam(),
479	progress.asOutParam()));
480
481	rc = showProgress(progress);
482	if (SUCCEEDED(rc))
483	RTPrintf(Snapshot::tr("Snapshot taken. UUID: %ls\n"), snapId.raw());
484	else
485	CHECK_PROGRESS_ERROR(progress, (Snapshot::tr("Failed to take snapshot")));
486	}
487	else if ( (fDelete = !strcmp(a->argv[1], "delete"))
488	\|\| (fRestore = !strcmp(a->argv[1], "restore"))
489	\|\| (fRestoreCurrent = !strcmp(a->argv[1], "restorecurrent"))
490	)
491	{
492	setCurrentSubcommand(fDelete ? HELP_SCOPE_SNAPSHOT_DELETE
493	: fRestore ? HELP_SCOPE_SNAPSHOT_RESTORE
494	: HELP_SCOPE_SNAPSHOT_RESTORECURRENT);
495
496	if (fRestoreCurrent)
497	{
498	if (a->argc > 2)
499	{
500	errorSyntax(Snapshot::tr("Too many arguments"));
501	rc = E_FAIL;
502	break;
503	}
504	}
505	/* exactly one parameter: snapshot name */
506	else if (a->argc != 3)
507	{
508	errorSyntax(Snapshot::tr("Expecting snapshot name only"));
509	rc = E_FAIL;
510	break;
511	}
512
513	ComPtr<ISnapshot> pSnapshot;
514
515	if (fRestoreCurrent)
516	{
517	CHECK_ERROR_BREAK(sessionMachine, COMGETTER(CurrentSnapshot)(pSnapshot.asOutParam()));
518	if (pSnapshot.isNull())
519	{
520	RTPrintf(Snapshot::tr("This machine does not have any snapshots\n"));
521	return RTEXITCODE_FAILURE;
522	}
523	}
524	else
525	{
526	// restore or delete snapshot: then resolve cmd line argument to snapshot instance
527	CHECK_ERROR_BREAK(sessionMachine, FindSnapshot(Bstr(a->argv[2]).raw(),
528	pSnapshot.asOutParam()));
529	}
530
531	Bstr bstrSnapGuid;
532	CHECK_ERROR_BREAK(pSnapshot, COMGETTER(Id)(bstrSnapGuid.asOutParam()));
533
534	Bstr bstrSnapName;
535	CHECK_ERROR_BREAK(pSnapshot, COMGETTER(Name)(bstrSnapName.asOutParam()));
536
537	ComPtr<IProgress> pProgress;
538
539	RTPrintf(Snapshot::tr("%s snapshot '%ls' (%ls)\n"),
540	fDelete ? Snapshot::tr("Deleting") : Snapshot::tr("Restoring"), bstrSnapName.raw(), bstrSnapGuid.raw());
541
542	if (fDelete)
543	{
544	CHECK_ERROR_BREAK(sessionMachine, DeleteSnapshot(bstrSnapGuid.raw(),
545	pProgress.asOutParam()));
546	}
547	else
548	{
549	// restore or restore current
550	CHECK_ERROR_BREAK(sessionMachine, RestoreSnapshot(pSnapshot, pProgress.asOutParam()));
551	}
552
553	rc = showProgress(pProgress);
554	CHECK_PROGRESS_ERROR(pProgress, (Snapshot::tr("Snapshot operation failed")));
555	}
556	else if (!strcmp(a->argv[1], "edit"))
557	{
558	setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_EDIT);
559	if (a->argc < 3)
560	{
561	errorSyntax(Snapshot::tr("Missing snapshot name"));
562	rc = E_FAIL;
563	break;
564	}
565
566	/* Parse the optional arguments, allowing more freedom than the
567	* synopsis explains. Can rename multiple snapshots and so on. */
568	ComPtr<ISnapshot> pSnapshot;
569	static const RTGETOPTDEF s_aEditOptions[] =
570	{
571	{ "--current", 'c', RTGETOPT_REQ_NOTHING },
572	{ "-current", 'c', RTGETOPT_REQ_NOTHING },
573	{ "--name", 'n', RTGETOPT_REQ_STRING },
574	{ "-name", 'n', RTGETOPT_REQ_STRING },
575	{ "-newname", 'n', RTGETOPT_REQ_STRING },
576	{ "--description", 'd', RTGETOPT_REQ_STRING },
577	{ "-description", 'd', RTGETOPT_REQ_STRING },
578	{ "-desc", 'd', RTGETOPT_REQ_STRING }
579	};
580	RTGETOPTSTATE GetOptState;
581	RTGetOptInit(&GetOptState, a->argc, a->argv, s_aEditOptions, RT_ELEMENTS(s_aEditOptions),
582	2, RTGETOPTINIT_FLAGS_NO_STD_OPTS);
583	int ch;
584	RTGETOPTUNION Value;
585	while ( SUCCEEDED(rc)
586	&& (ch = RTGetOpt(&GetOptState, &Value)))
587	{
588	switch (ch)
589	{
590	case 'c':
591	CHECK_ERROR_BREAK(sessionMachine, COMGETTER(CurrentSnapshot)(pSnapshot.asOutParam()));
592	if (pSnapshot.isNull())
593	{
594	RTPrintf(Snapshot::tr("This machine does not have any snapshots\n"));
595	return RTEXITCODE_FAILURE;
596	}
597	break;
598
599	case 'n':
600	CHECK_ERROR_BREAK(pSnapshot, COMSETTER(Name)(Bstr(Value.psz).raw()));
601	break;
602
603	case 'd':
604	CHECK_ERROR_BREAK(pSnapshot, COMSETTER(Description)(Bstr(Value.psz).raw()));
605	break;
606
607	case VINF_GETOPT_NOT_OPTION:
608	CHECK_ERROR_BREAK(sessionMachine, FindSnapshot(Bstr(Value.psz).raw(), pSnapshot.asOutParam()));
609	break;
610
611	default:
612	errorGetOpt(ch, &Value);
613	rc = E_FAIL;
614	break;
615	}
616	}
617
618	if (FAILED(rc))
619	break;
620	}
621	else if (!strcmp(a->argv[1], "showvminfo"))
622	{
623	setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_SHOWVMINFO);
624
625	/* exactly one parameter: snapshot name */
626	if (a->argc != 3)
627	{
628	errorSyntax(Snapshot::tr("Expecting snapshot name only"));
629	rc = E_FAIL;
630	break;
631	}
632
633	ComPtr<ISnapshot> pSnapshot;
634
635	CHECK_ERROR_BREAK(sessionMachine, FindSnapshot(Bstr(a->argv[2]).raw(),
636	pSnapshot.asOutParam()));
637
638	/* get the machine of the given snapshot */
639	ComPtr<IMachine> pMachine2;
640	pSnapshot->COMGETTER(Machine)(pMachine2.asOutParam());
641	showVMInfo(a->virtualBox, pMachine2, NULL, VMINFO_NONE);
642	}
643	else if (!strcmp(a->argv[1], "list"))
644	{
645	setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_LIST);
646	rc = handleSnapshotList(a, sessionMachine) == RTEXITCODE_SUCCESS ? S_OK : E_FAIL;
647	}
648	else if (!strcmp(a->argv[1], "dump")) // undocumented parameter to debug snapshot info
649	DumpSnapshot(sessionMachine);
650	else
651	{
652	errorSyntax(Snapshot::tr("Invalid parameter '%s'"), a->argv[1]);
653	rc = E_FAIL;
654	}
655	} while (0);
656
657	a->session->UnlockMachine();
658
659	return SUCCEEDED(rc) ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
660	}

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source: vbox/trunk/src/VBox/Frontends/VBoxManage/VBoxManageSnapshot.cpp@ 94234

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