VBoxTray.cpp@ 76098

Last change on this file since 76098 was 76098, checked in by vboxsync, 6 years ago
Additions/VBoxTray: Added VBoxTrayShowError() and warn if VBoxHook.dll is not found. Otherwise VBoxTray will fail without any hint whatsoever what went wrong. Annoying.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 64.0 KB

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1	/* $Id: VBoxTray.cpp 76098 2018-12-10 09:07:39Z vboxsync $ */
2	/** @file
3	* VBoxTray - Guest Additions Tray Application
4	*/
5
6	/*
7	* Copyright (C) 2006-2018 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 <package-generated.h>
23	#include "product-generated.h"
24
25	#include "VBoxTray.h"
26	#include "VBoxTrayMsg.h"
27	#include "VBoxHelpers.h"
28	#include "VBoxSeamless.h"
29	#include "VBoxClipboard.h"
30	#include "VBoxDisplay.h"
31	#include "VBoxVRDP.h"
32	#include "VBoxHostVersion.h"
33	#ifdef VBOX_WITH_SHARED_FOLDERS
34	# include "VBoxSharedFolders.h"
35	#endif
36	#ifdef VBOX_WITH_DRAG_AND_DROP
37	# include "VBoxDnD.h"
38	#endif
39	#include "VBoxIPC.h"
40	#include "VBoxLA.h"
41	#include <VBoxHook.h>
42	#include "resource.h"
43
44	#include <sddl.h>
45
46	#include <iprt/asm.h>
47	#include <iprt/buildconfig.h>
48	#include <iprt/ldr.h>
49	#include <iprt/path.h>
50	#include <iprt/process.h>
51	#include <iprt/system.h>
52	#include <iprt/time.h>
53
54	#ifdef DEBUG
55	# define LOG_ENABLED
56	# define LOG_GROUP LOG_GROUP_DEFAULT
57	#endif
58	#include <VBox/log.h>
59
60	/* Default desktop state tracking */
61	#include <Wtsapi32.h>
62
63	/*
64	* St (session [state] tracking) functionality API
65	*
66	* !!!NOTE: this API is NOT thread-safe!!!
67	* it is supposed to be called & used from within the window message handler thread
68	* of the window passed to vboxStInit */
69	static int vboxStInit(HWND hWnd);
70	static void vboxStTerm(void);
71	/* @returns true on "IsActiveConsole" state change */
72	static BOOL vboxStHandleEvent(WPARAM EventID);
73	static BOOL vboxStIsActiveConsole();
74	static BOOL vboxStCheckTimer(WPARAM wEvent);
75
76	/*
77	* Dt (desktop [state] tracking) functionality API
78	*
79	* !!!NOTE: this API is NOT thread-safe!!!
80	* */
81	static int vboxDtInit();
82	static void vboxDtTerm();
83	/* @returns true on "IsInputDesktop" state change */
84	static BOOL vboxDtHandleEvent();
85	/* @returns true iff the application (VBoxTray) desktop is input */
86	static BOOL vboxDtIsInputDesktop();
87	static HANDLE vboxDtGetNotifyEvent();
88	static BOOL vboxDtCheckTimer(WPARAM wParam);
89
90	/* caps API */
91	#define VBOXCAPS_ENTRY_IDX_SEAMLESS 0
92	#define VBOXCAPS_ENTRY_IDX_GRAPHICS 1
93	#define VBOXCAPS_ENTRY_IDX_COUNT 2
94
95	typedef enum VBOXCAPS_ENTRY_FUNCSTATE
96	{
97	/* the cap is unsupported */
98	VBOXCAPS_ENTRY_FUNCSTATE_UNSUPPORTED = 0,
99	/* the cap is supported */
100	VBOXCAPS_ENTRY_FUNCSTATE_SUPPORTED,
101	/* the cap functionality is started, it can be disabled however if its AcState is not ACQUIRED */
102	VBOXCAPS_ENTRY_FUNCSTATE_STARTED,
103	} VBOXCAPS_ENTRY_FUNCSTATE;
104
105
106	static void VBoxCapsEntryFuncStateSet(uint32_t iCup, VBOXCAPS_ENTRY_FUNCSTATE enmFuncState);
107	static int VBoxCapsInit();
108	static int VBoxCapsReleaseAll();
109	static void VBoxCapsTerm();
110	static BOOL VBoxCapsEntryIsAcquired(uint32_t iCap);
111	static BOOL VBoxCapsEntryIsEnabled(uint32_t iCap);
112	static BOOL VBoxCapsCheckTimer(WPARAM wParam);
113	static int VBoxCapsEntryRelease(uint32_t iCap);
114	static int VBoxCapsEntryAcquire(uint32_t iCap);
115	static int VBoxCapsAcquireAllSupported();
116
117	/* console-related caps API */
118	static BOOL VBoxConsoleIsAllowed();
119	static void VBoxConsoleEnable(BOOL fEnable);
120	static void VBoxConsoleCapSetSupported(uint32_t iCap, BOOL fSupported);
121
122	static void VBoxGrapicsSetSupported(BOOL fSupported);
123
124
125	/*********************************************************************************************************************************
126	* Internal Functions *
127	*********************************************************************************************************************************/
128	static int vboxTrayCreateTrayIcon(void);
129	static LRESULT CALLBACK vboxToolWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
130
131	/* Global message handler prototypes. */
132	static int vboxTrayGlMsgTaskbarCreated(WPARAM lParam, LPARAM wParam);
133	/static int vboxTrayGlMsgShowBalloonMsg(WPARAM lParam, LPARAM wParam);/
134
135	static int VBoxAcquireGuestCaps(uint32_t fOr, uint32_t fNot, bool fCfg);
136
137
138	/*********************************************************************************************************************************
139	* Global Variables *
140	*********************************************************************************************************************************/
141	HANDLE g_hStopSem;
142	HANDLE g_hSeamlessWtNotifyEvent = 0;
143	HANDLE g_hSeamlessKmNotifyEvent = 0;
144	HINSTANCE g_hInstance;
145	HWND g_hwndToolWindow;
146	NOTIFYICONDATA g_NotifyIconData;
147	DWORD g_dwMajorVersion;
148
149	uint32_t g_fGuestDisplaysChanged = 0;
150
151	static PRTLOGGER g_pLoggerRelease = NULL;
152	static uint32_t g_cHistory = 10; /* Enable log rotation, 10 files. */
153	static uint32_t g_uHistoryFileTime = RT_SEC_1DAY; /* Max 1 day per file. */
154	static uint64_t g_uHistoryFileSize = 100 * _1M; /* Max 100MB per file. */
155
156	/**
157	* The details of the services that has been compiled in.
158	*/
159	static VBOXSERVICEINFO g_aServices[] =
160	{
161	{ &g_SvcDescDisplay, NIL_RTTHREAD, NULL, false, false, false, false, true },
162	{ &g_SvcDescClipboard, NIL_RTTHREAD, NULL, false, false, false, false, true },
163	{ &g_SvcDescSeamless, NIL_RTTHREAD, NULL, false, false, false, false, true },
164	{ &g_SvcDescVRDP, NIL_RTTHREAD, NULL, false, false, false, false, true },
165	{ &g_SvcDescIPC, NIL_RTTHREAD, NULL, false, false, false, false, true },
166	{ &g_SvcDescLA, NIL_RTTHREAD, NULL, false, false, false, false, true },
167	#ifdef VBOX_WITH_DRAG_AND_DROP
168	{ &g_SvcDescDnD, NIL_RTTHREAD, NULL, false, false, false, false, true }
169	#endif
170	};
171
172	/* The global message table. */
173	static VBOXGLOBALMESSAGE g_vboxGlobalMessageTable[] =
174	{
175	/* Windows specific stuff. */
176	{
177	"TaskbarCreated",
178	vboxTrayGlMsgTaskbarCreated
179	},
180
181	/* VBoxTray specific stuff. */
182	/** @todo Add new messages here! */
183
184	{
185	NULL
186	}
187	};
188
189	/**
190	* Gets called whenever the Windows main taskbar
191	* get (re-)created. Nice to install our tray icon.
192	*
193	* @return IPRT status code.
194	* @param wParam
195	* @param lParam
196	*/
197	static int vboxTrayGlMsgTaskbarCreated(WPARAM wParam, LPARAM lParam)
198	{
199	RT_NOREF(wParam, lParam);
200	return vboxTrayCreateTrayIcon();
201	}
202
203	static int vboxTrayCreateTrayIcon(void)
204	{
205	HICON hIcon = LoadIcon(g_hInstance, MAKEINTRESOURCE(IDI_VIRTUALBOX));
206	if (hIcon == NULL)
207	{
208	DWORD dwErr = GetLastError();
209	LogFunc(("Could not load tray icon, error %08X\n", dwErr));
210	return RTErrConvertFromWin32(dwErr);
211	}
212
213	/* Prepare the system tray icon. */
214	RT_ZERO(g_NotifyIconData);
215	g_NotifyIconData.cbSize = NOTIFYICONDATA_V1_SIZE; // sizeof(NOTIFYICONDATA);
216	g_NotifyIconData.hWnd = g_hwndToolWindow;
217	g_NotifyIconData.uID = ID_TRAYICON;
218	g_NotifyIconData.uFlags = NIF_ICON \| NIF_MESSAGE \| NIF_TIP;
219	g_NotifyIconData.uCallbackMessage = WM_VBOXTRAY_TRAY_ICON;
220	g_NotifyIconData.hIcon = hIcon;
221
222	sprintf(g_NotifyIconData.szTip, "%s Guest Additions %d.%d.%dr%d",
223	VBOX_PRODUCT, VBOX_VERSION_MAJOR, VBOX_VERSION_MINOR, VBOX_VERSION_BUILD, VBOX_SVN_REV);
224
225	int rc = VINF_SUCCESS;
226	if (!Shell_NotifyIcon(NIM_ADD, &g_NotifyIconData))
227	{
228	DWORD dwErr = GetLastError();
229	LogFunc(("Could not create tray icon, error=%ld\n", dwErr));
230	rc = RTErrConvertFromWin32(dwErr);
231	RT_ZERO(g_NotifyIconData);
232	}
233
234	if (hIcon)
235	DestroyIcon(hIcon);
236	return rc;
237	}
238
239	static void vboxTrayRemoveTrayIcon(void)
240	{
241	if (g_NotifyIconData.cbSize > 0)
242	{
243	/* Remove the system tray icon and refresh system tray. */
244	Shell_NotifyIcon(NIM_DELETE, &g_NotifyIconData);
245	HWND hTrayWnd = FindWindow("Shell_TrayWnd", NULL); /* We assume we only have one tray atm. */
246	if (hTrayWnd)
247	{
248	HWND hTrayNotifyWnd = FindWindowEx(hTrayWnd, 0, "TrayNotifyWnd", NULL);
249	if (hTrayNotifyWnd)
250	SendMessage(hTrayNotifyWnd, WM_PAINT, 0, NULL);
251	}
252	RT_ZERO(g_NotifyIconData);
253	}
254	}
255
256	/**
257	* The service thread.
258	*
259	* @returns Whatever the worker function returns.
260	* @param ThreadSelf My thread handle.
261	* @param pvUser The service index.
262	*/
263	static DECLCALLBACK(int) vboxTrayServiceThread(RTTHREAD ThreadSelf, void *pvUser)
264	{
265	PVBOXSERVICEINFO pSvc = (PVBOXSERVICEINFO)pvUser;
266	AssertPtr(pSvc);
267
268	#ifndef RT_OS_WINDOWS
269	/*
270	* Block all signals for this thread. Only the main thread will handle signals.
271	*/
272	sigset_t signalMask;
273	sigfillset(&signalMask);
274	pthread_sigmask(SIG_BLOCK, &signalMask, NULL);
275	#endif
276
277	int rc = pSvc->pDesc->pfnWorker(pSvc->pInstance, &pSvc->fShutdown);
278	ASMAtomicXchgBool(&pSvc->fShutdown, true);
279	RTThreadUserSignal(ThreadSelf);
280
281	LogFunc(("Worker for '%s' ended with %Rrc\n", pSvc->pDesc->pszName, rc));
282	return rc;
283	}
284
285	static int vboxTrayServicesStart(PVBOXSERVICEENV pEnv)
286	{
287	AssertPtrReturn(pEnv, VERR_INVALID_POINTER);
288
289	LogRel(("Starting services ...\n"));
290
291	int rc = VINF_SUCCESS;
292
293	for (unsigned i = 0; i < RT_ELEMENTS(g_aServices); i++)
294	{
295	PVBOXSERVICEINFO pSvc = &g_aServices[i];
296	LogRel(("Starting service '%s' ...\n", pSvc->pDesc->pszName));
297
298	pSvc->hThread = NIL_RTTHREAD;
299	pSvc->pInstance = NULL;
300	pSvc->fStarted = false;
301	pSvc->fShutdown = false;
302
303	int rc2 = VINF_SUCCESS;
304
305	if (pSvc->pDesc->pfnInit)
306	rc2 = pSvc->pDesc->pfnInit(pEnv, &pSvc->pInstance);
307
308	if (RT_FAILURE(rc2))
309	{
310	LogRel(("Failed to initialize service '%s', rc=%Rrc\n", pSvc->pDesc->pszName, rc2));
311	if (rc2 == VERR_NOT_SUPPORTED)
312	{
313	LogRel(("Service '%s' is not supported on this system\n", pSvc->pDesc->pszName));
314	rc2 = VINF_SUCCESS;
315	}
316	/* Keep going. */
317	}
318	else
319	{
320	if (pSvc->pDesc->pfnWorker)
321	{
322	rc2 = RTThreadCreate(&pSvc->hThread, vboxTrayServiceThread, pSvc /* pvUser */,
323	0 /* Default stack size */, RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, pSvc->pDesc->pszName);
324	if (RT_SUCCESS(rc2))
325	{
326	pSvc->fStarted = true;
327
328	RTThreadUserWait(pSvc->hThread, 30 * 1000 /* Timeout in ms */);
329	if (pSvc->fShutdown)
330	{
331	LogRel(("Service '%s' failed to start!\n", pSvc->pDesc->pszName));
332	rc = VERR_GENERAL_FAILURE;
333	}
334	else
335	LogRel(("Service '%s' started\n", pSvc->pDesc->pszName));
336	}
337	else
338	{
339	LogRel(("Failed to start thread for service '%s': %Rrc\n", rc2));
340	if (pSvc->pDesc->pfnDestroy)
341	pSvc->pDesc->pfnDestroy(pSvc->pInstance);
342	}
343	}
344	}
345
346	if (RT_SUCCESS(rc))
347	rc = rc2;
348	}
349
350	if (RT_SUCCESS(rc))
351	LogRel(("All services started\n"));
352	else
353	LogRel(("Services started, but some with errors\n"));
354
355	LogFlowFuncLeaveRC(rc);
356	return rc;
357	}
358
359	static int vboxTrayServicesStop(VBOXSERVICEENV *pEnv)
360	{
361	AssertPtrReturn(pEnv, VERR_INVALID_POINTER);
362
363	LogRel2(("Stopping all services ...\n"));
364
365	/*
366	* Signal all the services.
367	*/
368	for (unsigned i = 0; i < RT_ELEMENTS(g_aServices); i++)
369	ASMAtomicWriteBool(&g_aServices[i].fShutdown, true);
370
371	/*
372	* Do the pfnStop callback on all running services.
373	*/
374	for (unsigned i = 0; i < RT_ELEMENTS(g_aServices); i++)
375	{
376	PVBOXSERVICEINFO pSvc = &g_aServices[i];
377	if ( pSvc->fStarted
378	&& pSvc->pDesc->pfnStop)
379	{
380	LogRel2(("Calling stop function for service '%s' ...\n", pSvc->pDesc->pszName));
381	int rc2 = pSvc->pDesc->pfnStop(pSvc->pInstance);
382	if (RT_FAILURE(rc2))
383	LogRel(("Failed to stop service '%s': %Rrc\n", pSvc->pDesc->pszName, rc2));
384	}
385	}
386
387	LogRel2(("All stop functions for services called\n"));
388
389	int rc = VINF_SUCCESS;
390
391	/*
392	* Wait for all the service threads to complete.
393	*/
394	for (unsigned i = 0; i < RT_ELEMENTS(g_aServices); i++)
395	{
396	PVBOXSERVICEINFO pSvc = &g_aServices[i];
397	if (!pSvc->fEnabled) /* Only stop services which were started before. */
398	continue;
399
400	if (pSvc->hThread != NIL_RTTHREAD)
401	{
402	LogRel2(("Waiting for service '%s' to stop ...\n", pSvc->pDesc->pszName));
403	int rc2 = VINF_SUCCESS;
404	for (int j = 0; j < 30; j++) /* Wait 30 seconds in total */
405	{
406	rc2 = RTThreadWait(pSvc->hThread, 1000 /* Wait 1 second */, NULL);
407	if (RT_SUCCESS(rc2))
408	break;
409	}
410	if (RT_FAILURE(rc2))
411	{
412	LogRel(("Service '%s' failed to stop (%Rrc)\n", pSvc->pDesc->pszName, rc2));
413	if (RT_SUCCESS(rc))
414	rc = rc2;
415	}
416	}
417
418	if (pSvc->pDesc->pfnDestroy)
419	{
420	LogRel2(("Terminating service '%s' ...\n", pSvc->pDesc->pszName));
421	pSvc->pDesc->pfnDestroy(pSvc->pInstance);
422	}
423	}
424
425	if (RT_SUCCESS(rc))
426	LogRel(("All services stopped\n"));
427
428	LogFlowFuncLeaveRC(rc);
429	return rc;
430	}
431
432	static int vboxTrayRegisterGlobalMessages(PVBOXGLOBALMESSAGE pTable)
433	{
434	int rc = VINF_SUCCESS;
435	if (pTable == NULL) /* No table to register? Skip. */
436	return rc;
437	while ( pTable->pszName
438	&& RT_SUCCESS(rc))
439	{
440	/* Register global accessible window messages. */
441	pTable->uMsgID = RegisterWindowMessage(TEXT(pTable->pszName));
442	if (!pTable->uMsgID)
443	{
444	DWORD dwErr = GetLastError();
445	Log(("Registering global message \"%s\" failed, error = %08X\n", dwErr));
446	rc = RTErrConvertFromWin32(dwErr);
447	}
448
449	/* Advance to next table element. */
450	pTable++;
451	}
452	return rc;
453	}
454
455	static bool vboxTrayHandleGlobalMessages(PVBOXGLOBALMESSAGE pTable, UINT uMsg,
456	WPARAM wParam, LPARAM lParam)
457	{
458	if (pTable == NULL)
459	return false;
460	while (pTable && pTable->pszName)
461	{
462	if (pTable->uMsgID == uMsg)
463	{
464	if (pTable->pfnHandler)
465	pTable->pfnHandler(wParam, lParam);
466	return true;
467	}
468
469	/* Advance to next table element. */
470	pTable++;
471	}
472	return false;
473	}
474
475	/**
476	* Release logger callback.
477	*
478	* @return IPRT status code.
479	* @param pLoggerRelease
480	* @param enmPhase
481	* @param pfnLog
482	*/
483	static void vboxTrayLogHeaderFooter(PRTLOGGER pLoggerRelease, RTLOGPHASE enmPhase, PFNRTLOGPHASEMSG pfnLog)
484	{
485	/* Some introductory information. */
486	static RTTIMESPEC s_TimeSpec;
487	char szTmp[256];
488	if (enmPhase == RTLOGPHASE_BEGIN)
489	RTTimeNow(&s_TimeSpec);
490	RTTimeSpecToString(&s_TimeSpec, szTmp, sizeof(szTmp));
491
492	switch (enmPhase)
493	{
494	case RTLOGPHASE_BEGIN:
495	{
496	pfnLog(pLoggerRelease,
497	"VBoxTray %s r%s %s (%s %s) release log\n"
498	"Log opened %s\n",
499	RTBldCfgVersion(), RTBldCfgRevisionStr(), VBOX_BUILD_TARGET,
500	__DATE__, __TIME__, szTmp);
501
502	int vrc = RTSystemQueryOSInfo(RTSYSOSINFO_PRODUCT, szTmp, sizeof(szTmp));
503	if (RT_SUCCESS(vrc) \|\| vrc == VERR_BUFFER_OVERFLOW)
504	pfnLog(pLoggerRelease, "OS Product: %s\n", szTmp);
505	vrc = RTSystemQueryOSInfo(RTSYSOSINFO_RELEASE, szTmp, sizeof(szTmp));
506	if (RT_SUCCESS(vrc) \|\| vrc == VERR_BUFFER_OVERFLOW)
507	pfnLog(pLoggerRelease, "OS Release: %s\n", szTmp);
508	vrc = RTSystemQueryOSInfo(RTSYSOSINFO_VERSION, szTmp, sizeof(szTmp));
509	if (RT_SUCCESS(vrc) \|\| vrc == VERR_BUFFER_OVERFLOW)
510	pfnLog(pLoggerRelease, "OS Version: %s\n", szTmp);
511	if (RT_SUCCESS(vrc) \|\| vrc == VERR_BUFFER_OVERFLOW)
512	pfnLog(pLoggerRelease, "OS Service Pack: %s\n", szTmp);
513
514	/* the package type is interesting for Linux distributions */
515	char szExecName[RTPATH_MAX];
516	char *pszExecName = RTProcGetExecutablePath(szExecName, sizeof(szExecName));
517	pfnLog(pLoggerRelease,
518	"Executable: %s\n"
519	"Process ID: %u\n"
520	"Package type: %s"
521	#ifdef VBOX_OSE
522	" (OSE)"
523	#endif
524	"\n",
525	pszExecName ? pszExecName : "unknown",
526	RTProcSelf(),
527	VBOX_PACKAGE_STRING);
528	break;
529	}
530
531	case RTLOGPHASE_PREROTATE:
532	pfnLog(pLoggerRelease, "Log rotated - Log started %s\n", szTmp);
533	break;
534
535	case RTLOGPHASE_POSTROTATE:
536	pfnLog(pLoggerRelease, "Log continuation - Log started %s\n", szTmp);
537	break;
538
539	case RTLOGPHASE_END:
540	pfnLog(pLoggerRelease, "End of log file - Log started %s\n", szTmp);
541	break;
542
543	default:
544	/* nothing */;
545	}
546	}
547
548	/**
549	* Creates the default release logger outputting to the specified file.
550	* Pass NULL for disabled logging.
551	*
552	* @return IPRT status code.
553	* @param pszLogFile Filename for log output. Optional.
554	*/
555	static int vboxTrayLogCreate(const char *pszLogFile)
556	{
557	/* Create release logger (stdout + file). */
558	static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES;
559	RTUINT fFlags = RTLOGFLAGS_PREFIX_THREAD \| RTLOGFLAGS_PREFIX_TIME_PROG;
560	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
561	fFlags \|= RTLOGFLAGS_USECRLF;
562	#endif
563	RTERRINFOSTATIC ErrInfo;
564	int rc = RTLogCreateEx(&g_pLoggerRelease, fFlags,
565	#ifdef DEBUG
566	"all.e.l.f",
567	"VBOXTRAY_LOG",
568	#else
569	"all",
570	"VBOXTRAY_RELEASE_LOG",
571	#endif
572	RT_ELEMENTS(s_apszGroups), s_apszGroups, RTLOGDEST_STDOUT,
573	vboxTrayLogHeaderFooter, g_cHistory, g_uHistoryFileSize, g_uHistoryFileTime,
574	RTErrInfoInitStatic(&ErrInfo), pszLogFile);
575	if (RT_SUCCESS(rc))
576	{
577	#ifdef DEBUG
578	RTLogSetDefaultInstance(g_pLoggerRelease);
579	#else
580	/* Register this logger as the release logger. */
581	RTLogRelSetDefaultInstance(g_pLoggerRelease);
582	#endif
583	/* Explicitly flush the log in case of VBOXTRAY_RELEASE_LOG=buffered. */
584	RTLogFlush(g_pLoggerRelease);
585	}
586	else
587	VBoxTrayShowError(ErrInfo.szMsg);
588
589	return rc;
590	}
591
592	static void vboxTrayLogDestroy(void)
593	{
594	RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
595	}
596
597	/**
598	* Displays an error message.
599	*
600	* @returns RTEXITCODE_FAILURE.
601	* @param pszFormat The message text.
602	* @param ... Format arguments.
603	*/
604	RTEXITCODE VBoxTrayShowError(const char *pszFormat, ...)
605	{
606	va_list args;
607	va_start(args, pszFormat);
608	char *psz = NULL;
609	RTStrAPrintfV(&psz, pszFormat, args);
610	va_end(args);
611
612	AssertPtr(psz);
613	LogRel(("Error: %s", psz));
614
615	MessageBox(GetDesktopWindow(), psz, "VBoxTray - Error", MB_OK \| MB_ICONERROR);
616
617	RTStrFree(psz);
618
619	return RTEXITCODE_FAILURE;
620	}
621
622	static void vboxTrayDestroyToolWindow(void)
623	{
624	if (g_hwndToolWindow)
625	{
626	Log(("Destroying tool window ...\n"));
627
628	/* Destroy the tool window. */
629	DestroyWindow(g_hwndToolWindow);
630	g_hwndToolWindow = NULL;
631
632	UnregisterClass("VBoxTrayToolWndClass", g_hInstance);
633	}
634	}
635
636	static int vboxTrayCreateToolWindow(void)
637	{
638	DWORD dwErr = ERROR_SUCCESS;
639
640	/* Create a custom window class. */
641	WNDCLASSEX wc = { 0 };
642	wc.cbSize = sizeof(WNDCLASSEX);
643	wc.style = CS_NOCLOSE;
644	wc.lpfnWndProc = (WNDPROC)vboxToolWndProc;
645	wc.hInstance = g_hInstance;
646	wc.hCursor = LoadCursor(NULL, IDC_ARROW);
647	wc.lpszClassName = "VBoxTrayToolWndClass";
648
649	if (!RegisterClassEx(&wc))
650	{
651	dwErr = GetLastError();
652	Log(("Registering invisible tool window failed, error = %08X\n", dwErr));
653	}
654	else
655	{
656	/*
657	* Create our (invisible) tool window.
658	* Note: The window name ("VBoxTrayToolWnd") and class ("VBoxTrayToolWndClass") is
659	* needed for posting globally registered messages to VBoxTray and must not be
660	* changed! Otherwise things get broken!
661	*
662	*/
663	g_hwndToolWindow = CreateWindowEx(WS_EX_TOOLWINDOW \| WS_EX_TRANSPARENT \| WS_EX_TOPMOST,
664	"VBoxTrayToolWndClass", "VBoxTrayToolWnd",
665	WS_POPUPWINDOW,
666	-200, -200, 100, 100, NULL, NULL, g_hInstance, NULL);
667	if (!g_hwndToolWindow)
668	{
669	dwErr = GetLastError();
670	Log(("Creating invisible tool window failed, error = %08X\n", dwErr));
671	}
672	else
673	{
674	/* Reload the cursor(s). */
675	hlpReloadCursor();
676
677	Log(("Invisible tool window handle = %p\n", g_hwndToolWindow));
678	}
679	}
680
681	if (dwErr != ERROR_SUCCESS)
682	vboxTrayDestroyToolWindow();
683	return RTErrConvertFromWin32(dwErr);
684	}
685
686	static int vboxTraySetupSeamless(void)
687	{
688	OSVERSIONINFO info;
689	g_dwMajorVersion = 5; /* Default to Windows XP. */
690	info.dwOSVersionInfoSize = sizeof(info);
691	if (GetVersionEx(&info))
692	{
693	Log(("Windows version %ld.%ld\n", info.dwMajorVersion, info.dwMinorVersion));
694	g_dwMajorVersion = info.dwMajorVersion;
695	}
696
697	/* We need to setup a security descriptor to allow other processes modify access to the seamless notification event semaphore. */
698	SECURITY_ATTRIBUTES SecAttr;
699	DWORD dwErr = ERROR_SUCCESS;
700	char secDesc[SECURITY_DESCRIPTOR_MIN_LENGTH];
701	BOOL fRC;
702
703	SecAttr.nLength = sizeof(SecAttr);
704	SecAttr.bInheritHandle = FALSE;
705	SecAttr.lpSecurityDescriptor = &secDesc;
706	InitializeSecurityDescriptor(SecAttr.lpSecurityDescriptor, SECURITY_DESCRIPTOR_REVISION);
707	fRC = SetSecurityDescriptorDacl(SecAttr.lpSecurityDescriptor, TRUE, 0, FALSE);
708	if (!fRC)
709	{
710	dwErr = GetLastError();
711	Log(("SetSecurityDescriptorDacl failed with last error = %08X\n", dwErr));
712	}
713	else
714	{
715	/* For Vista and up we need to change the integrity of the security descriptor, too. */
716	if (g_dwMajorVersion >= 6)
717	{
718	BOOL (WINAPI * pfnConvertStringSecurityDescriptorToSecurityDescriptorA)(LPCSTR StringSecurityDescriptor, DWORD StringSDRevision, PSECURITY_DESCRIPTOR *SecurityDescriptor, PULONG SecurityDescriptorSize);
719	(void *)&pfnConvertStringSecurityDescriptorToSecurityDescriptorA =
720	RTLdrGetSystemSymbol("advapi32.dll", "ConvertStringSecurityDescriptorToSecurityDescriptorA");
721	Log(("pfnConvertStringSecurityDescriptorToSecurityDescriptorA = %x\n", pfnConvertStringSecurityDescriptorToSecurityDescriptorA));
722	if (pfnConvertStringSecurityDescriptorToSecurityDescriptorA)
723	{
724	PSECURITY_DESCRIPTOR pSD;
725	PACL pSacl = NULL;
726	BOOL fSaclPresent = FALSE;
727	BOOL fSaclDefaulted = FALSE;
728
729	fRC = pfnConvertStringSecurityDescriptorToSecurityDescriptorA("S:(ML;;NW;;;LW)", /* this means "low integrity" */
730	SDDL_REVISION_1, &pSD, NULL);
731	if (!fRC)
732	{
733	dwErr = GetLastError();
734	Log(("ConvertStringSecurityDescriptorToSecurityDescriptorA failed with last error = %08X\n", dwErr));
735	}
736	else
737	{
738	fRC = GetSecurityDescriptorSacl(pSD, &fSaclPresent, &pSacl, &fSaclDefaulted);
739	if (!fRC)
740	{
741	dwErr = GetLastError();
742	Log(("GetSecurityDescriptorSacl failed with last error = %08X\n", dwErr));
743	}
744	else
745	{
746	fRC = SetSecurityDescriptorSacl(SecAttr.lpSecurityDescriptor, TRUE, pSacl, FALSE);
747	if (!fRC)
748	{
749	dwErr = GetLastError();
750	Log(("SetSecurityDescriptorSacl failed with last error = %08X\n", dwErr));
751	}
752	}
753	}
754	}
755	}
756
757	if ( dwErr == ERROR_SUCCESS
758	&& g_dwMajorVersion >= 5) /* Only for W2K and up ... */
759	{
760	g_hSeamlessWtNotifyEvent = CreateEvent(&SecAttr, FALSE, FALSE, VBOXHOOK_GLOBAL_WT_EVENT_NAME);
761	if (g_hSeamlessWtNotifyEvent == NULL)
762	{
763	dwErr = GetLastError();
764	Log(("CreateEvent for Seamless failed, last error = %08X\n", dwErr));
765	}
766
767	g_hSeamlessKmNotifyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
768	if (g_hSeamlessKmNotifyEvent == NULL)
769	{
770	dwErr = GetLastError();
771	Log(("CreateEvent for Seamless failed, last error = %08X\n", dwErr));
772	}
773	}
774	}
775	return RTErrConvertFromWin32(dwErr);
776	}
777
778	static void vboxTrayShutdownSeamless(void)
779	{
780	if (g_hSeamlessWtNotifyEvent)
781	{
782	CloseHandle(g_hSeamlessWtNotifyEvent);
783	g_hSeamlessWtNotifyEvent = NULL;
784	}
785
786	if (g_hSeamlessKmNotifyEvent)
787	{
788	CloseHandle(g_hSeamlessKmNotifyEvent);
789	g_hSeamlessKmNotifyEvent = NULL;
790	}
791	}
792
793	static void VBoxTrayCheckDt()
794	{
795	BOOL fOldAllowedState = VBoxConsoleIsAllowed();
796	if (vboxDtHandleEvent())
797	{
798	if (!VBoxConsoleIsAllowed() != !fOldAllowedState)
799	VBoxConsoleEnable(!fOldAllowedState);
800	}
801	}
802
803	static int vboxTrayServiceMain(void)
804	{
805	int rc = VINF_SUCCESS;
806	LogFunc(("Entering vboxTrayServiceMain\n"));
807
808	g_hStopSem = CreateEvent(NULL, TRUE, FALSE, NULL);
809	if (g_hStopSem == NULL)
810	{
811	rc = RTErrConvertFromWin32(GetLastError());
812	LogFunc(("CreateEvent for stopping VBoxTray failed, rc=%Rrc\n", rc));
813	}
814	else
815	{
816	/*
817	* Start services listed in the vboxServiceTable.
818	*/
819	VBOXSERVICEENV svcEnv;
820	svcEnv.hInstance = g_hInstance;
821
822	/* Initializes disp-if to default (XPDM) mode. */
823	VBoxDispIfInit(&svcEnv.dispIf); /* Cannot fail atm. */
824	#ifdef VBOX_WITH_WDDM
825	/*
826	* For now the display mode will be adjusted to WDDM mode if needed
827	* on display service initialization when it detects the display driver type.
828	*/
829	#endif
830
831	/* Finally start all the built-in services! */
832	rc = vboxTrayServicesStart(&svcEnv);
833	if (RT_FAILURE(rc))
834	{
835	/* Terminate service if something went wrong. */
836	vboxTrayServicesStop(&svcEnv);
837	}
838	else
839	{
840	rc = vboxTrayCreateTrayIcon();
841	if ( RT_SUCCESS(rc)
842	&& g_dwMajorVersion >= 5) /* Only for W2K and up ... */
843	{
844	/* We're ready to create the tooltip balloon.
845	Check in 10 seconds (@todo make seconds configurable) ... */
846	SetTimer(g_hwndToolWindow,
847	TIMERID_VBOXTRAY_CHECK_HOSTVERSION,
848	10 * 1000, /* 10 seconds */
849	NULL /* No timerproc */);
850	}
851
852	if (RT_SUCCESS(rc))
853	{
854	#ifdef VBOX_WITH_SHARED_FOLDERS
855	/* Do the Shared Folders auto-mounting stuff. */
856	rc = VBoxSharedFoldersAutoMount();
857	#endif
858	if (RT_SUCCESS(rc))
859	{
860	/* Report the host that we're up and running! */
861	hlpReportStatus(VBoxGuestFacilityStatus_Active);
862	}
863	}
864
865	if (RT_SUCCESS(rc))
866	{
867	/* Boost thread priority to make sure we wake up early for seamless window notifications
868	* (not sure if it actually makes any difference though). */
869	SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_HIGHEST);
870
871	/*
872	* Main execution loop
873	* Wait for the stop semaphore to be posted or a window event to arrive
874	*/
875
876	HANDLE hWaitEvent[4] = {0};
877	DWORD dwEventCount = 0;
878
879	hWaitEvent[dwEventCount++] = g_hStopSem;
880
881	/* Check if seamless mode is not active and add seamless event to the list */
882	if (0 != g_hSeamlessWtNotifyEvent)
883	{
884	hWaitEvent[dwEventCount++] = g_hSeamlessWtNotifyEvent;
885	}
886
887	if (0 != g_hSeamlessKmNotifyEvent)
888	{
889	hWaitEvent[dwEventCount++] = g_hSeamlessKmNotifyEvent;
890	}
891
892	if (0 != vboxDtGetNotifyEvent())
893	{
894	hWaitEvent[dwEventCount++] = vboxDtGetNotifyEvent();
895	}
896
897	LogFlowFunc(("Number of events to wait in main loop: %ld\n", dwEventCount));
898	while (true)
899	{
900	DWORD waitResult = MsgWaitForMultipleObjectsEx(dwEventCount, hWaitEvent, 500, QS_ALLINPUT, 0);
901	waitResult = waitResult - WAIT_OBJECT_0;
902
903	/* Only enable for message debugging, lots of traffic! */
904	//Log(("Wait result = %ld\n", waitResult));
905
906	if (waitResult == 0)
907	{
908	LogFunc(("Event 'Exit' triggered\n"));
909	/* exit */
910	break;
911	}
912	else
913	{
914	BOOL fHandled = FALSE;
915	if (waitResult < RT_ELEMENTS(hWaitEvent))
916	{
917	if (hWaitEvent[waitResult])
918	{
919	if (hWaitEvent[waitResult] == g_hSeamlessWtNotifyEvent)
920	{
921	LogFunc(("Event 'Seamless' triggered\n"));
922
923	/* seamless window notification */
924	VBoxSeamlessCheckWindows(false);
925	fHandled = TRUE;
926	}
927	else if (hWaitEvent[waitResult] == g_hSeamlessKmNotifyEvent)
928	{
929	LogFunc(("Event 'Km Seamless' triggered\n"));
930
931	/* seamless window notification */
932	VBoxSeamlessCheckWindows(true);
933	fHandled = TRUE;
934	}
935	else if (hWaitEvent[waitResult] == vboxDtGetNotifyEvent())
936	{
937	LogFunc(("Event 'Dt' triggered\n"));
938	VBoxTrayCheckDt();
939	fHandled = TRUE;
940	}
941	}
942	}
943
944	if (!fHandled)
945	{
946	/* timeout or a window message, handle it */
947	MSG msg;
948	while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
949	{
950	#ifdef DEBUG_andy
951	LogFlowFunc(("PeekMessage %u\n", msg.message));
952	#endif
953	if (msg.message == WM_QUIT)
954	{
955	LogFunc(("Terminating ...\n"));
956	SetEvent(g_hStopSem);
957	}
958	TranslateMessage(&msg);
959	DispatchMessage(&msg);
960	}
961	}
962	}
963	}
964	LogFunc(("Returned from main loop, exiting ...\n"));
965	}
966	LogFunc(("Waiting for services to stop ...\n"));
967	vboxTrayServicesStop(&svcEnv);
968	} /* Services started */
969	CloseHandle(g_hStopSem);
970	} /* Stop event created */
971
972	vboxTrayRemoveTrayIcon();
973
974	LogFunc(("Leaving with rc=%Rrc\n", rc));
975	return rc;
976	}
977
978	/**
979	* Main function
980	*/
981	int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
982	{
983	RT_NOREF(hPrevInstance, lpCmdLine, nCmdShow);
984	int rc = RTR3InitExeNoArguments(0);
985	if (RT_FAILURE(rc))
986	return RTEXITCODE_INIT;
987
988	/* Note: Do not use a global namespace ("Global\\") for mutex name here,
989	* will blow up NT4 compatibility! */
990	HANDLE hMutexAppRunning = CreateMutex(NULL, FALSE, "VBoxTray");
991	if ( hMutexAppRunning != NULL
992	&& GetLastError() == ERROR_ALREADY_EXISTS)
993	{
994	/* VBoxTray already running? Bail out. */
995	CloseHandle (hMutexAppRunning);
996	hMutexAppRunning = NULL;
997	return 0;
998	}
999
1000	LogRel(("%s r%s\n", RTBldCfgVersion(), RTBldCfgRevisionStr()));
1001
1002	rc = vboxTrayLogCreate(NULL /* pszLogFile */);
1003	if (RT_SUCCESS(rc))
1004	{
1005	rc = VbglR3Init();
1006	if (RT_SUCCESS(rc))
1007	{
1008	/* Save instance handle. */
1009	g_hInstance = hInstance;
1010
1011	hlpReportStatus(VBoxGuestFacilityStatus_Init);
1012	rc = vboxTrayCreateToolWindow();
1013	if (RT_SUCCESS(rc))
1014	{
1015	VBoxCapsInit();
1016
1017	rc = vboxStInit(g_hwndToolWindow);
1018	if (!RT_SUCCESS(rc))
1019	{
1020	LogFlowFunc(("vboxStInit failed, rc=%Rrc\n", rc));
1021	/* ignore the St Init failure. this can happen for < XP win that do not support WTS API
1022	* in that case the session is treated as active connected to the physical console
1023	* (i.e. fallback to the old behavior that was before introduction of VBoxSt) */
1024	Assert(vboxStIsActiveConsole());
1025	}
1026
1027	rc = vboxDtInit();
1028	if (!RT_SUCCESS(rc))
1029	{
1030	LogFlowFunc(("vboxDtInit failed, rc=%Rrc\n", rc));
1031	/* ignore the Dt Init failure. this can happen for < XP win that do not support WTS API
1032	* in that case the session is treated as active connected to the physical console
1033	* (i.e. fallback to the old behavior that was before introduction of VBoxSt) */
1034	Assert(vboxDtIsInputDesktop());
1035	}
1036
1037	rc = VBoxAcquireGuestCaps(VMMDEV_GUEST_SUPPORTS_SEAMLESS \| VMMDEV_GUEST_SUPPORTS_GRAPHICS, 0, true);
1038	if (!RT_SUCCESS(rc))
1039	LogFlowFunc(("VBoxAcquireGuestCaps failed with rc=%Rrc, ignoring ...\n", rc));
1040
1041	rc = vboxTraySetupSeamless(); /** @todo r=andy Do we really want to be this critical for the whole application? */
1042	if (RT_SUCCESS(rc))
1043	{
1044	rc = vboxTrayServiceMain();
1045	if (RT_SUCCESS(rc))
1046	hlpReportStatus(VBoxGuestFacilityStatus_Terminating);
1047	vboxTrayShutdownSeamless();
1048	}
1049
1050	/* it should be safe to call vboxDtTerm even if vboxStInit above failed */
1051	vboxDtTerm();
1052
1053	/* it should be safe to call vboxStTerm even if vboxStInit above failed */
1054	vboxStTerm();
1055
1056	VBoxCapsTerm();
1057
1058	vboxTrayDestroyToolWindow();
1059	}
1060	if (RT_SUCCESS(rc))
1061	hlpReportStatus(VBoxGuestFacilityStatus_Terminated);
1062	else
1063	{
1064	LogRel(("Error while starting, rc=%Rrc\n", rc));
1065	hlpReportStatus(VBoxGuestFacilityStatus_Failed);
1066	}
1067
1068	LogRel(("Ended\n"));
1069	VbglR3Term();
1070	}
1071	else
1072	LogRel(("VbglR3Init failed: %Rrc\n", rc));
1073	}
1074
1075	/* Release instance mutex. */
1076	if (hMutexAppRunning != NULL)
1077	{
1078	CloseHandle(hMutexAppRunning);
1079	hMutexAppRunning = NULL;
1080	}
1081
1082	vboxTrayLogDestroy();
1083
1084	return RT_SUCCESS(rc) ? 0 : 1;
1085	}
1086
1087	/**
1088	* Window procedure for our main tool window.
1089	*/
1090	static LRESULT CALLBACK vboxToolWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1091	{
1092	LogFlowFunc(("hWnd=%p, uMsg=%u\n", hWnd, uMsg));
1093
1094	switch (uMsg)
1095	{
1096	case WM_CREATE:
1097	{
1098	LogFunc(("Tool window created\n"));
1099
1100	int rc = vboxTrayRegisterGlobalMessages(&g_vboxGlobalMessageTable[0]);
1101	if (RT_FAILURE(rc))
1102	LogFunc(("Error registering global window messages, rc=%Rrc\n", rc));
1103	return 0;
1104	}
1105
1106	case WM_CLOSE:
1107	return 0;
1108
1109	case WM_DESTROY:
1110	{
1111	LogFunc(("Tool window destroyed\n"));
1112	KillTimer(g_hwndToolWindow, TIMERID_VBOXTRAY_CHECK_HOSTVERSION);
1113	return 0;
1114	}
1115
1116	case WM_TIMER:
1117	{
1118	if (VBoxCapsCheckTimer(wParam))
1119	return 0;
1120	if (vboxDtCheckTimer(wParam))
1121	return 0;
1122	if (vboxStCheckTimer(wParam))
1123	return 0;
1124
1125	switch (wParam)
1126	{
1127	case TIMERID_VBOXTRAY_CHECK_HOSTVERSION:
1128	if (RT_SUCCESS(VBoxCheckHostVersion()))
1129	{
1130	/* After successful run we don't need to check again. */
1131	KillTimer(g_hwndToolWindow, TIMERID_VBOXTRAY_CHECK_HOSTVERSION);
1132	}
1133	return 0;
1134
1135	default:
1136	break;
1137	}
1138
1139	break; /* Make sure other timers get processed the usual way! */
1140	}
1141
1142	case WM_VBOXTRAY_TRAY_ICON:
1143	{
1144	switch (lParam)
1145	{
1146	case WM_LBUTTONDBLCLK:
1147	break;
1148
1149	case WM_RBUTTONDOWN:
1150	break;
1151	}
1152	return 0;
1153	}
1154
1155	case WM_VBOX_SEAMLESS_ENABLE:
1156	{
1157	VBoxCapsEntryFuncStateSet(VBOXCAPS_ENTRY_IDX_SEAMLESS, VBOXCAPS_ENTRY_FUNCSTATE_STARTED);
1158	if (VBoxCapsEntryIsEnabled(VBOXCAPS_ENTRY_IDX_SEAMLESS))
1159	VBoxSeamlessCheckWindows(true);
1160	return 0;
1161	}
1162
1163	case WM_VBOX_SEAMLESS_DISABLE:
1164	{
1165	VBoxCapsEntryFuncStateSet(VBOXCAPS_ENTRY_IDX_SEAMLESS, VBOXCAPS_ENTRY_FUNCSTATE_SUPPORTED);
1166	return 0;
1167	}
1168
1169	case WM_DISPLAYCHANGE:
1170	ASMAtomicUoWriteU32(&g_fGuestDisplaysChanged, 1);
1171	// No break or return is intentional here.
1172	case WM_VBOX_SEAMLESS_UPDATE:
1173	{
1174	if (VBoxCapsEntryIsEnabled(VBOXCAPS_ENTRY_IDX_SEAMLESS))
1175	VBoxSeamlessCheckWindows(true);
1176	return 0;
1177	}
1178
1179	case WM_VBOX_GRAPHICS_SUPPORTED:
1180	{
1181	VBoxGrapicsSetSupported(TRUE);
1182	return 0;
1183	}
1184
1185	case WM_VBOX_GRAPHICS_UNSUPPORTED:
1186	{
1187	VBoxGrapicsSetSupported(FALSE);
1188	return 0;
1189	}
1190
1191	case WM_WTSSESSION_CHANGE:
1192	{
1193	BOOL fOldAllowedState = VBoxConsoleIsAllowed();
1194	if (vboxStHandleEvent(wParam))
1195	{
1196	if (!VBoxConsoleIsAllowed() != !fOldAllowedState)
1197	VBoxConsoleEnable(!fOldAllowedState);
1198	}
1199	return 0;
1200	}
1201
1202	default:
1203	{
1204	/* Handle all globally registered window messages. */
1205	if (vboxTrayHandleGlobalMessages(&g_vboxGlobalMessageTable[0], uMsg,
1206	wParam, lParam))
1207	{
1208	return 0; /* We handled the message. @todo Add return value!*/
1209	}
1210	break; /* We did not handle the message, dispatch to DefWndProc. */
1211	}
1212	}
1213
1214	/* Only if message was not handled by our switch above, dispatch to DefWindowProc. */
1215	return DefWindowProc(hWnd, uMsg, wParam, lParam);
1216	}
1217
1218	/* St (session [state] tracking) functionality API impl */
1219
1220	typedef struct VBOXST
1221	{
1222	HWND hWTSAPIWnd;
1223	RTLDRMOD hLdrModWTSAPI32;
1224	BOOL fIsConsole;
1225	WTS_CONNECTSTATE_CLASS enmConnectState;
1226	UINT_PTR idDelayedInitTimer;
1227	BOOL (WINAPI * pfnWTSRegisterSessionNotification)(HWND hWnd, DWORD dwFlags);
1228	BOOL (WINAPI * pfnWTSUnRegisterSessionNotification)(HWND hWnd);
1229	BOOL (WINAPI * pfnWTSQuerySessionInformationA)(HANDLE hServer, DWORD SessionId, WTS_INFO_CLASS WTSInfoClass, LPTSTR ppBuffer, DWORD pBytesReturned);
1230	} VBOXST;
1231
1232	static VBOXST gVBoxSt;
1233
1234	static int vboxStCheckState()
1235	{
1236	int rc = VINF_SUCCESS;
1237	WTS_CONNECTSTATE_CLASS *penmConnectState = NULL;
1238	USHORT *pProtocolType = NULL;
1239	DWORD cbBuf = 0;
1240	if (gVBoxSt.pfnWTSQuerySessionInformationA(WTS_CURRENT_SERVER_HANDLE, WTS_CURRENT_SESSION, WTSConnectState,
1241	(LPTSTR *)&penmConnectState, &cbBuf))
1242	{
1243	if (gVBoxSt.pfnWTSQuerySessionInformationA(WTS_CURRENT_SERVER_HANDLE, WTS_CURRENT_SESSION, WTSClientProtocolType,
1244	(LPTSTR *)&pProtocolType, &cbBuf))
1245	{
1246	gVBoxSt.fIsConsole = (*pProtocolType == 0);
1247	gVBoxSt.enmConnectState = *penmConnectState;
1248	return VINF_SUCCESS;
1249	}
1250
1251	DWORD dwErr = GetLastError();
1252	LogFlowFunc(("WTSQuerySessionInformationA WTSClientProtocolType failed, error = %08X\n", dwErr));
1253	rc = RTErrConvertFromWin32(dwErr);
1254	}
1255	else
1256	{
1257	DWORD dwErr = GetLastError();
1258	LogFlowFunc(("WTSQuerySessionInformationA WTSConnectState failed, error = %08X\n", dwErr));
1259	rc = RTErrConvertFromWin32(dwErr);
1260	}
1261
1262	/* failure branch, set to "console-active" state */
1263	gVBoxSt.fIsConsole = TRUE;
1264	gVBoxSt.enmConnectState = WTSActive;
1265
1266	return rc;
1267	}
1268
1269	static int vboxStInit(HWND hWnd)
1270	{
1271	RT_ZERO(gVBoxSt);
1272	int rc = RTLdrLoadSystem("WTSAPI32.DLL", false /fNoUnload/, &gVBoxSt.hLdrModWTSAPI32);
1273	if (RT_SUCCESS(rc))
1274	{
1275	rc = RTLdrGetSymbol(gVBoxSt.hLdrModWTSAPI32, "WTSRegisterSessionNotification",
1276	(void **)&gVBoxSt.pfnWTSRegisterSessionNotification);
1277	if (RT_SUCCESS(rc))
1278	{
1279	rc = RTLdrGetSymbol(gVBoxSt.hLdrModWTSAPI32, "WTSUnRegisterSessionNotification",
1280	(void **)&gVBoxSt.pfnWTSUnRegisterSessionNotification);
1281	if (RT_SUCCESS(rc))
1282	{
1283	rc = RTLdrGetSymbol(gVBoxSt.hLdrModWTSAPI32, "WTSQuerySessionInformationA",
1284	(void **)&gVBoxSt.pfnWTSQuerySessionInformationA);
1285	if (RT_FAILURE(rc))
1286	LogFlowFunc(("WTSQuerySessionInformationA not found\n"));
1287	}
1288	else
1289	LogFlowFunc(("WTSUnRegisterSessionNotification not found\n"));
1290	}
1291	else
1292	LogFlowFunc(("WTSRegisterSessionNotification not found\n"));
1293	if (RT_SUCCESS(rc))
1294	{
1295	gVBoxSt.hWTSAPIWnd = hWnd;
1296	if (gVBoxSt.pfnWTSRegisterSessionNotification(gVBoxSt.hWTSAPIWnd, NOTIFY_FOR_THIS_SESSION))
1297	vboxStCheckState();
1298	else
1299	{
1300	DWORD dwErr = GetLastError();
1301	LogFlowFunc(("WTSRegisterSessionNotification failed, error = %08X\n", dwErr));
1302	if (dwErr == RPC_S_INVALID_BINDING)
1303	{
1304	gVBoxSt.idDelayedInitTimer = SetTimer(gVBoxSt.hWTSAPIWnd, TIMERID_VBOXTRAY_ST_DELAYED_INIT_TIMER,
1305	2000, (TIMERPROC)NULL);
1306	gVBoxSt.fIsConsole = TRUE;
1307	gVBoxSt.enmConnectState = WTSActive;
1308	rc = VINF_SUCCESS;
1309	}
1310	else
1311	rc = RTErrConvertFromWin32(dwErr);
1312	}
1313
1314	if (RT_SUCCESS(rc))
1315	return VINF_SUCCESS;
1316	}
1317
1318	RTLdrClose(gVBoxSt.hLdrModWTSAPI32);
1319	}
1320	else
1321	LogFlowFunc(("WTSAPI32 load failed, rc = %Rrc\n", rc));
1322
1323	RT_ZERO(gVBoxSt);
1324	gVBoxSt.fIsConsole = TRUE;
1325	gVBoxSt.enmConnectState = WTSActive;
1326	return rc;
1327	}
1328
1329	static void vboxStTerm(void)
1330	{
1331	if (!gVBoxSt.hWTSAPIWnd)
1332	{
1333	LogFlowFunc(("vboxStTerm called for non-initialized St\n"));
1334	return;
1335	}
1336
1337	if (gVBoxSt.idDelayedInitTimer)
1338	{
1339	/* notification is not registered, just kill timer */
1340	KillTimer(gVBoxSt.hWTSAPIWnd, gVBoxSt.idDelayedInitTimer);
1341	gVBoxSt.idDelayedInitTimer = 0;
1342	}
1343	else
1344	{
1345	if (!gVBoxSt.pfnWTSUnRegisterSessionNotification(gVBoxSt.hWTSAPIWnd))
1346	{
1347	LogFlowFunc(("WTSAPI32 load failed, error = %08X\n", GetLastError()));
1348	}
1349	}
1350
1351	RTLdrClose(gVBoxSt.hLdrModWTSAPI32);
1352	RT_ZERO(gVBoxSt);
1353	}
1354
1355	#define VBOXST_DBG_MAKECASE(_val) case _val: return #_val;
1356
1357	static const char* vboxStDbgGetString(DWORD val)
1358	{
1359	switch (val)
1360	{
1361	VBOXST_DBG_MAKECASE(WTS_CONSOLE_CONNECT);
1362	VBOXST_DBG_MAKECASE(WTS_CONSOLE_DISCONNECT);
1363	VBOXST_DBG_MAKECASE(WTS_REMOTE_CONNECT);
1364	VBOXST_DBG_MAKECASE(WTS_REMOTE_DISCONNECT);
1365	VBOXST_DBG_MAKECASE(WTS_SESSION_LOGON);
1366	VBOXST_DBG_MAKECASE(WTS_SESSION_LOGOFF);
1367	VBOXST_DBG_MAKECASE(WTS_SESSION_LOCK);
1368	VBOXST_DBG_MAKECASE(WTS_SESSION_UNLOCK);
1369	VBOXST_DBG_MAKECASE(WTS_SESSION_REMOTE_CONTROL);
1370	default:
1371	LogFlowFunc(("invalid WTS state %d\n", val));
1372	return "Unknown";
1373	}
1374	}
1375
1376	static BOOL vboxStCheckTimer(WPARAM wEvent)
1377	{
1378	if (wEvent != gVBoxSt.idDelayedInitTimer)
1379	return FALSE;
1380
1381	if (gVBoxSt.pfnWTSRegisterSessionNotification(gVBoxSt.hWTSAPIWnd, NOTIFY_FOR_THIS_SESSION))
1382	{
1383	KillTimer(gVBoxSt.hWTSAPIWnd, gVBoxSt.idDelayedInitTimer);
1384	gVBoxSt.idDelayedInitTimer = 0;
1385	vboxStCheckState();
1386	}
1387	else
1388	{
1389	LogFlowFunc(("timer WTSRegisterSessionNotification failed, error = %08X\n", GetLastError()));
1390	Assert(gVBoxSt.fIsConsole == TRUE);
1391	Assert(gVBoxSt.enmConnectState == WTSActive);
1392	}
1393
1394	return TRUE;
1395	}
1396
1397
1398	static BOOL vboxStHandleEvent(WPARAM wEvent)
1399	{
1400	RT_NOREF(wEvent);
1401	LogFlowFunc(("WTS Event: %s\n", vboxStDbgGetString(wEvent)));
1402	BOOL fOldIsActiveConsole = vboxStIsActiveConsole();
1403
1404	vboxStCheckState();
1405
1406	return !vboxStIsActiveConsole() != !fOldIsActiveConsole;
1407	}
1408
1409	static BOOL vboxStIsActiveConsole(void)
1410	{
1411	return (gVBoxSt.enmConnectState == WTSActive && gVBoxSt.fIsConsole);
1412	}
1413
1414	/*
1415	* Dt (desktop [state] tracking) functionality API impl
1416	*
1417	* !!!NOTE: this API is NOT thread-safe!!!
1418	* */
1419
1420	typedef struct VBOXDT
1421	{
1422	HANDLE hNotifyEvent;
1423	BOOL fIsInputDesktop;
1424	UINT_PTR idTimer;
1425	RTLDRMOD hLdrModHook;
1426	BOOL (* pfnVBoxHookInstallActiveDesktopTracker)(HMODULE hDll);
1427	BOOL (* pfnVBoxHookRemoveActiveDesktopTracker)();
1428	HDESK (WINAPI * pfnGetThreadDesktop)(DWORD dwThreadId);
1429	HDESK (WINAPI * pfnOpenInputDesktop)(DWORD dwFlags, BOOL fInherit, ACCESS_MASK dwDesiredAccess);
1430	BOOL (WINAPI * pfnCloseDesktop)(HDESK hDesktop);
1431	} VBOXDT;
1432
1433	static VBOXDT gVBoxDt;
1434
1435	static BOOL vboxDtCalculateIsInputDesktop()
1436	{
1437	BOOL fIsInputDt = FALSE;
1438	HDESK hInput = gVBoxDt.pfnOpenInputDesktop(0, FALSE, DESKTOP_CREATEWINDOW);
1439	if (hInput)
1440	{
1441	// DWORD dwThreadId = GetCurrentThreadId();
1442	// HDESK hThreadDt = gVBoxDt.pfnGetThreadDesktop(dwThreadId);
1443	// if (hThreadDt)
1444	// {
1445	fIsInputDt = TRUE;
1446	// }
1447	// else
1448	// {
1449	// DWORD dwErr = GetLastError();
1450	// LogFlowFunc(("pfnGetThreadDesktop for Seamless failed, last error = %08X\n", dwErr));
1451	// }
1452
1453	gVBoxDt.pfnCloseDesktop(hInput);
1454	}
1455	else
1456	{
1457	// DWORD dwErr = GetLastError();
1458	// LogFlowFunc(("pfnOpenInputDesktop for Seamless failed, last error = %08X\n", dwErr));
1459	}
1460	return fIsInputDt;
1461	}
1462
1463	static BOOL vboxDtCheckTimer(WPARAM wParam)
1464	{
1465	if (wParam != gVBoxDt.idTimer)
1466	return FALSE;
1467
1468	VBoxTrayCheckDt();
1469
1470	return TRUE;
1471	}
1472
1473	static int vboxDtInit()
1474	{
1475	int rc = VINF_SUCCESS;
1476	OSVERSIONINFO info;
1477	g_dwMajorVersion = 5; /* Default to Windows XP. */
1478	info.dwOSVersionInfoSize = sizeof(info);
1479	if (GetVersionEx(&info))
1480	{
1481	LogRel(("Windows version %ld.%ld\n", info.dwMajorVersion, info.dwMinorVersion));
1482	g_dwMajorVersion = info.dwMajorVersion;
1483	}
1484
1485	RT_ZERO(gVBoxDt);
1486
1487	gVBoxDt.hNotifyEvent = CreateEvent(NULL, FALSE, FALSE, VBOXHOOK_GLOBAL_DT_EVENT_NAME);
1488	if (gVBoxDt.hNotifyEvent != NULL)
1489	{
1490	/* Load the hook dll and resolve the necessary entry points. */
1491	rc = RTLdrLoadAppPriv(VBOXHOOK_DLL_NAME, &gVBoxDt.hLdrModHook);
1492	if (RT_SUCCESS(rc))
1493	{
1494	rc = RTLdrGetSymbol(gVBoxDt.hLdrModHook, "VBoxHookInstallActiveDesktopTracker",
1495	(void **)&gVBoxDt.pfnVBoxHookInstallActiveDesktopTracker);
1496	if (RT_SUCCESS(rc))
1497	{
1498	rc = RTLdrGetSymbol(gVBoxDt.hLdrModHook, "VBoxHookRemoveActiveDesktopTracker",
1499	(void **)&gVBoxDt.pfnVBoxHookRemoveActiveDesktopTracker);
1500	if (RT_FAILURE(rc))
1501	LogFlowFunc(("VBoxHookRemoveActiveDesktopTracker not found\n"));
1502	}
1503	else
1504	LogFlowFunc(("VBoxHookInstallActiveDesktopTracker not found\n"));
1505	if (RT_SUCCESS(rc))
1506	{
1507	/* Try get the system APIs we need. */
1508	(void *)&gVBoxDt.pfnGetThreadDesktop = RTLdrGetSystemSymbol("user32.dll", "GetThreadDesktop");
1509	if (!gVBoxDt.pfnGetThreadDesktop)
1510	{
1511	LogFlowFunc(("GetThreadDesktop not found\n"));
1512	rc = VERR_NOT_SUPPORTED;
1513	}
1514
1515	(void *)&gVBoxDt.pfnOpenInputDesktop = RTLdrGetSystemSymbol("user32.dll", "OpenInputDesktop");
1516	if (!gVBoxDt.pfnOpenInputDesktop)
1517	{
1518	LogFlowFunc(("OpenInputDesktop not found\n"));
1519	rc = VERR_NOT_SUPPORTED;
1520	}
1521
1522	(void *)&gVBoxDt.pfnCloseDesktop = RTLdrGetSystemSymbol("user32.dll", "CloseDesktop");
1523	if (!gVBoxDt.pfnCloseDesktop)
1524	{
1525	LogFlowFunc(("CloseDesktop not found\n"));
1526	rc = VERR_NOT_SUPPORTED;
1527	}
1528
1529	if (RT_SUCCESS(rc))
1530	{
1531	BOOL fRc = FALSE;
1532	/* For Vista and up we need to change the integrity of the security descriptor, too. */
1533	if (g_dwMajorVersion >= 6)
1534	{
1535	HMODULE hModHook = (HMODULE)RTLdrGetNativeHandle(gVBoxDt.hLdrModHook);
1536	Assert((uintptr_t)hModHook != ~(uintptr_t)0);
1537	fRc = gVBoxDt.pfnVBoxHookInstallActiveDesktopTracker(hModHook);
1538	if (!fRc)
1539	LogFlowFunc(("pfnVBoxHookInstallActiveDesktopTracker failed, last error = %08X\n", GetLastError()));
1540	}
1541
1542	if (!fRc)
1543	{
1544	gVBoxDt.idTimer = SetTimer(g_hwndToolWindow, TIMERID_VBOXTRAY_DT_TIMER, 500, (TIMERPROC)NULL);
1545	if (!gVBoxDt.idTimer)
1546	{
1547	DWORD dwErr = GetLastError();
1548	LogFlowFunc(("SetTimer error %08X\n", dwErr));
1549	rc = RTErrConvertFromWin32(dwErr);
1550	}
1551	}
1552
1553	if (RT_SUCCESS(rc))
1554	{
1555	gVBoxDt.fIsInputDesktop = vboxDtCalculateIsInputDesktop();
1556	return VINF_SUCCESS;
1557	}
1558	}
1559	}
1560
1561	RTLdrClose(gVBoxDt.hLdrModHook);
1562	}
1563	else
1564	{
1565	DWORD dwErr = GetLastError();
1566	LogFlowFunc(("CreateEvent for Seamless failed, last error = %08X\n", dwErr));
1567	rc = RTErrConvertFromWin32(dwErr);
1568	}
1569
1570	CloseHandle(gVBoxDt.hNotifyEvent);
1571	}
1572	else
1573	{
1574	DWORD dwErr = GetLastError();
1575	LogFlowFunc(("CreateEvent for Seamless failed, last error = %08X\n", dwErr));
1576	rc = RTErrConvertFromWin32(dwErr);
1577	}
1578
1579
1580	RT_ZERO(gVBoxDt);
1581	gVBoxDt.fIsInputDesktop = TRUE;
1582
1583	return rc;
1584	}
1585
1586	static void vboxDtTerm()
1587	{
1588	if (!gVBoxDt.hLdrModHook)
1589	return;
1590
1591	gVBoxDt.pfnVBoxHookRemoveActiveDesktopTracker();
1592
1593	RTLdrClose(gVBoxDt.hLdrModHook);
1594	CloseHandle(gVBoxDt.hNotifyEvent);
1595
1596	RT_ZERO(gVBoxDt);
1597	}
1598	/* @returns true on "IsInputDesktop" state change */
1599	static BOOL vboxDtHandleEvent()
1600	{
1601	BOOL fIsInputDesktop = gVBoxDt.fIsInputDesktop;
1602	gVBoxDt.fIsInputDesktop = vboxDtCalculateIsInputDesktop();
1603	return !fIsInputDesktop != !gVBoxDt.fIsInputDesktop;
1604	}
1605
1606	static HANDLE vboxDtGetNotifyEvent()
1607	{
1608	return gVBoxDt.hNotifyEvent;
1609	}
1610
1611	/* @returns true iff the application (VBoxTray) desktop is input */
1612	static BOOL vboxDtIsInputDesktop()
1613	{
1614	return gVBoxDt.fIsInputDesktop;
1615	}
1616
1617	/* we need to perform Acquire/Release using the file handled we use for rewuesting events from VBoxGuest
1618	* otherwise Acquisition mechanism will treat us as different client and will not propagate necessary requests
1619	* */
1620	static int VBoxAcquireGuestCaps(uint32_t fOr, uint32_t fNot, bool fCfg)
1621	{
1622	Log(("VBoxAcquireGuestCaps or(0x%x), not(0x%x), cfx(%d)\n", fOr, fNot, fCfg));
1623	int rc = VbglR3AcquireGuestCaps(fOr, fNot, fCfg);
1624	if (RT_FAILURE(rc))
1625	LogFlowFunc(("VBOXGUEST_IOCTL_GUEST_CAPS_ACQUIRE failed: %Rrc\n", rc));
1626	return rc;
1627	}
1628
1629	typedef enum VBOXCAPS_ENTRY_ACSTATE
1630	{
1631	/* the given cap is released */
1632	VBOXCAPS_ENTRY_ACSTATE_RELEASED = 0,
1633	/* the given cap acquisition is in progress */
1634	VBOXCAPS_ENTRY_ACSTATE_ACQUIRING,
1635	/* the given cap is acquired */
1636	VBOXCAPS_ENTRY_ACSTATE_ACQUIRED
1637	} VBOXCAPS_ENTRY_ACSTATE;
1638
1639
1640	struct VBOXCAPS_ENTRY;
1641	struct VBOXCAPS;
1642
1643	typedef DECLCALLBACKPTR(void, PFNVBOXCAPS_ENTRY_ON_ENABLE)(struct VBOXCAPS pConsole, struct VBOXCAPS_ENTRY pCap, BOOL fEnabled);
1644
1645	typedef struct VBOXCAPS_ENTRY
1646	{
1647	uint32_t fCap;
1648	uint32_t iCap;
1649	VBOXCAPS_ENTRY_FUNCSTATE enmFuncState;
1650	VBOXCAPS_ENTRY_ACSTATE enmAcState;
1651	PFNVBOXCAPS_ENTRY_ON_ENABLE pfnOnEnable;
1652	} VBOXCAPS_ENTRY;
1653
1654
1655	typedef struct VBOXCAPS
1656	{
1657	UINT_PTR idTimer;
1658	VBOXCAPS_ENTRY aCaps[VBOXCAPS_ENTRY_IDX_COUNT];
1659	} VBOXCAPS;
1660
1661	static VBOXCAPS gVBoxCaps;
1662
1663	static DECLCALLBACK(void) vboxCapsOnEnableSeamless(struct VBOXCAPS pConsole, struct VBOXCAPS_ENTRY pCap, BOOL fEnabled)
1664	{
1665	RT_NOREF(pConsole, pCap);
1666	if (fEnabled)
1667	{
1668	Log(("vboxCapsOnEnableSeamless: ENABLED\n"));
1669	Assert(pCap->enmAcState == VBOXCAPS_ENTRY_ACSTATE_ACQUIRED);
1670	Assert(pCap->enmFuncState == VBOXCAPS_ENTRY_FUNCSTATE_STARTED);
1671	VBoxSeamlessEnable();
1672	}
1673	else
1674	{
1675	Log(("vboxCapsOnEnableSeamless: DISABLED\n"));
1676	Assert(pCap->enmAcState != VBOXCAPS_ENTRY_ACSTATE_ACQUIRED \|\| pCap->enmFuncState != VBOXCAPS_ENTRY_FUNCSTATE_STARTED);
1677	VBoxSeamlessDisable();
1678	}
1679	}
1680
1681	static void vboxCapsEntryAcStateSet(VBOXCAPS_ENTRY *pCap, VBOXCAPS_ENTRY_ACSTATE enmAcState)
1682	{
1683	VBOXCAPS *pConsole = &gVBoxCaps;
1684
1685	Log(("vboxCapsEntryAcStateSet: new state enmAcState(%d); pCap: fCap(%d), iCap(%d), enmFuncState(%d), enmAcState(%d)\n",
1686	enmAcState, pCap->fCap, pCap->iCap, pCap->enmFuncState, pCap->enmAcState));
1687
1688	if (pCap->enmAcState == enmAcState)
1689	return;
1690
1691	VBOXCAPS_ENTRY_ACSTATE enmOldAcState = pCap->enmAcState;
1692	pCap->enmAcState = enmAcState;
1693
1694	if (enmAcState == VBOXCAPS_ENTRY_ACSTATE_ACQUIRED)
1695	{
1696	if (pCap->enmFuncState == VBOXCAPS_ENTRY_FUNCSTATE_STARTED)
1697	{
1698	if (pCap->pfnOnEnable)
1699	pCap->pfnOnEnable(pConsole, pCap, TRUE);
1700	}
1701	}
1702	else if (enmOldAcState == VBOXCAPS_ENTRY_ACSTATE_ACQUIRED && pCap->enmFuncState == VBOXCAPS_ENTRY_FUNCSTATE_STARTED)
1703	{
1704	if (pCap->pfnOnEnable)
1705	pCap->pfnOnEnable(pConsole, pCap, FALSE);
1706	}
1707	}
1708
1709	static void vboxCapsEntryFuncStateSet(VBOXCAPS_ENTRY *pCap, VBOXCAPS_ENTRY_FUNCSTATE enmFuncState)
1710	{
1711	VBOXCAPS *pConsole = &gVBoxCaps;
1712
1713	Log(("vboxCapsEntryFuncStateSet: new state enmAcState(%d); pCap: fCap(%d), iCap(%d), enmFuncState(%d), enmAcState(%d)\n",
1714	enmFuncState, pCap->fCap, pCap->iCap, pCap->enmFuncState, pCap->enmAcState));
1715
1716	if (pCap->enmFuncState == enmFuncState)
1717	return;
1718
1719	VBOXCAPS_ENTRY_FUNCSTATE enmOldFuncState = pCap->enmFuncState;
1720
1721	pCap->enmFuncState = enmFuncState;
1722
1723	if (enmFuncState == VBOXCAPS_ENTRY_FUNCSTATE_STARTED)
1724	{
1725	Assert(enmOldFuncState == VBOXCAPS_ENTRY_FUNCSTATE_SUPPORTED);
1726	if (pCap->enmAcState == VBOXCAPS_ENTRY_ACSTATE_ACQUIRED)
1727	{
1728	if (pCap->pfnOnEnable)
1729	pCap->pfnOnEnable(pConsole, pCap, TRUE);
1730	}
1731	}
1732	else if (pCap->enmAcState == VBOXCAPS_ENTRY_ACSTATE_ACQUIRED && enmOldFuncState == VBOXCAPS_ENTRY_FUNCSTATE_STARTED)
1733	{
1734	if (pCap->pfnOnEnable)
1735	pCap->pfnOnEnable(pConsole, pCap, FALSE);
1736	}
1737	}
1738
1739	static void VBoxCapsEntryFuncStateSet(uint32_t iCup, VBOXCAPS_ENTRY_FUNCSTATE enmFuncState)
1740	{
1741	VBOXCAPS *pConsole = &gVBoxCaps;
1742	VBOXCAPS_ENTRY *pCap = &pConsole->aCaps[iCup];
1743	vboxCapsEntryFuncStateSet(pCap, enmFuncState);
1744	}
1745
1746	static int VBoxCapsInit()
1747	{
1748	VBOXCAPS *pConsole = &gVBoxCaps;
1749	memset(pConsole, 0, sizeof (*pConsole));
1750	pConsole->aCaps[VBOXCAPS_ENTRY_IDX_SEAMLESS].fCap = VMMDEV_GUEST_SUPPORTS_SEAMLESS;
1751	pConsole->aCaps[VBOXCAPS_ENTRY_IDX_SEAMLESS].iCap = VBOXCAPS_ENTRY_IDX_SEAMLESS;
1752	pConsole->aCaps[VBOXCAPS_ENTRY_IDX_SEAMLESS].pfnOnEnable = vboxCapsOnEnableSeamless;
1753	pConsole->aCaps[VBOXCAPS_ENTRY_IDX_GRAPHICS].fCap = VMMDEV_GUEST_SUPPORTS_GRAPHICS;
1754	pConsole->aCaps[VBOXCAPS_ENTRY_IDX_GRAPHICS].iCap = VBOXCAPS_ENTRY_IDX_GRAPHICS;
1755	return VINF_SUCCESS;
1756	}
1757
1758	static int VBoxCapsReleaseAll()
1759	{
1760	VBOXCAPS *pConsole = &gVBoxCaps;
1761	Log(("VBoxCapsReleaseAll\n"));
1762	int rc = VBoxAcquireGuestCaps(0, VMMDEV_GUEST_SUPPORTS_SEAMLESS \| VMMDEV_GUEST_SUPPORTS_GRAPHICS, false);
1763	if (!RT_SUCCESS(rc))
1764	{
1765	LogFlowFunc(("vboxCapsEntryReleaseAll VBoxAcquireGuestCaps failed rc %d\n", rc));
1766	return rc;
1767	}
1768
1769	if (pConsole->idTimer)
1770	{
1771	Log(("killing console timer\n"));
1772	KillTimer(g_hwndToolWindow, pConsole->idTimer);
1773	pConsole->idTimer = 0;
1774	}
1775
1776	for (int i = 0; i < RT_ELEMENTS(pConsole->aCaps); ++i)
1777	{
1778	vboxCapsEntryAcStateSet(&pConsole->aCaps[i], VBOXCAPS_ENTRY_ACSTATE_RELEASED);
1779	}
1780
1781	return rc;
1782	}
1783
1784	static void VBoxCapsTerm()
1785	{
1786	VBOXCAPS *pConsole = &gVBoxCaps;
1787	VBoxCapsReleaseAll();
1788	memset(pConsole, 0, sizeof (*pConsole));
1789	}
1790
1791	static BOOL VBoxCapsEntryIsAcquired(uint32_t iCap)
1792	{
1793	VBOXCAPS *pConsole = &gVBoxCaps;
1794	return pConsole->aCaps[iCap].enmAcState == VBOXCAPS_ENTRY_ACSTATE_ACQUIRED;
1795	}
1796
1797	static BOOL VBoxCapsEntryIsEnabled(uint32_t iCap)
1798	{
1799	VBOXCAPS *pConsole = &gVBoxCaps;
1800	return pConsole->aCaps[iCap].enmAcState == VBOXCAPS_ENTRY_ACSTATE_ACQUIRED
1801	&& pConsole->aCaps[iCap].enmFuncState == VBOXCAPS_ENTRY_FUNCSTATE_STARTED;
1802	}
1803
1804	static BOOL VBoxCapsCheckTimer(WPARAM wParam)
1805	{
1806	VBOXCAPS *pConsole = &gVBoxCaps;
1807	if (wParam != pConsole->idTimer)
1808	return FALSE;
1809
1810	uint32_t u32AcquiredCaps = 0;
1811	BOOL fNeedNewTimer = FALSE;
1812
1813	for (int i = 0; i < RT_ELEMENTS(pConsole->aCaps); ++i)
1814	{
1815	VBOXCAPS_ENTRY *pCap = &pConsole->aCaps[i];
1816	if (pCap->enmAcState != VBOXCAPS_ENTRY_ACSTATE_ACQUIRING)
1817	continue;
1818
1819	int rc = VBoxAcquireGuestCaps(pCap->fCap, 0, false);
1820	if (RT_SUCCESS(rc))
1821	{
1822	vboxCapsEntryAcStateSet(&pConsole->aCaps[i], VBOXCAPS_ENTRY_ACSTATE_ACQUIRED);
1823	u32AcquiredCaps \|= pCap->fCap;
1824	}
1825	else
1826	{
1827	Assert(rc == VERR_RESOURCE_BUSY);
1828	fNeedNewTimer = TRUE;
1829	}
1830	}
1831
1832	if (!fNeedNewTimer)
1833	{
1834	KillTimer(g_hwndToolWindow, pConsole->idTimer);
1835	/* cleanup timer data */
1836	pConsole->idTimer = 0;
1837	}
1838
1839	return TRUE;
1840	}
1841
1842	static int VBoxCapsEntryRelease(uint32_t iCap)
1843	{
1844	VBOXCAPS *pConsole = &gVBoxCaps;
1845	VBOXCAPS_ENTRY *pCap = &pConsole->aCaps[iCap];
1846	if (pCap->enmAcState == VBOXCAPS_ENTRY_ACSTATE_RELEASED)
1847	{
1848	LogFlowFunc(("invalid cap[%d] state[%d] on release\n", iCap, pCap->enmAcState));
1849	return VERR_INVALID_STATE;
1850	}
1851
1852	if (pCap->enmAcState == VBOXCAPS_ENTRY_ACSTATE_ACQUIRED)
1853	{
1854	int rc = VBoxAcquireGuestCaps(0, pCap->fCap, false);
1855	AssertRC(rc);
1856	}
1857
1858	vboxCapsEntryAcStateSet(pCap, VBOXCAPS_ENTRY_ACSTATE_RELEASED);
1859
1860	return VINF_SUCCESS;
1861	}
1862
1863	static int VBoxCapsEntryAcquire(uint32_t iCap)
1864	{
1865	VBOXCAPS *pConsole = &gVBoxCaps;
1866	Assert(VBoxConsoleIsAllowed());
1867	VBOXCAPS_ENTRY *pCap = &pConsole->aCaps[iCap];
1868	Log(("VBoxCapsEntryAcquire %d\n", iCap));
1869	if (pCap->enmAcState != VBOXCAPS_ENTRY_ACSTATE_RELEASED)
1870	{
1871	LogFlowFunc(("invalid cap[%d] state[%d] on acquire\n", iCap, pCap->enmAcState));
1872	return VERR_INVALID_STATE;
1873	}
1874
1875	vboxCapsEntryAcStateSet(pCap, VBOXCAPS_ENTRY_ACSTATE_ACQUIRING);
1876	int rc = VBoxAcquireGuestCaps(pCap->fCap, 0, false);
1877	if (RT_SUCCESS(rc))
1878	{
1879	vboxCapsEntryAcStateSet(pCap, VBOXCAPS_ENTRY_ACSTATE_ACQUIRED);
1880	return VINF_SUCCESS;
1881	}
1882
1883	if (rc != VERR_RESOURCE_BUSY)
1884	{
1885	LogFlowFunc(("vboxCapsEntryReleaseAll VBoxAcquireGuestCaps failed rc %d\n", rc));
1886	return rc;
1887	}
1888
1889	LogFlowFunc(("iCap %d is busy!\n", iCap));
1890
1891	/* the cap was busy, most likely it is still used by other VBoxTray instance running in another session,
1892	* queue the retry timer */
1893	if (!pConsole->idTimer)
1894	{
1895	pConsole->idTimer = SetTimer(g_hwndToolWindow, TIMERID_VBOXTRAY_CAPS_TIMER, 100, (TIMERPROC)NULL);
1896	if (!pConsole->idTimer)
1897	{
1898	DWORD dwErr = GetLastError();
1899	LogFlowFunc(("SetTimer error %08X\n", dwErr));
1900	return RTErrConvertFromWin32(dwErr);
1901	}
1902	}
1903
1904	return rc;
1905	}
1906
1907	static int VBoxCapsAcquireAllSupported()
1908	{
1909	VBOXCAPS *pConsole = &gVBoxCaps;
1910	Log(("VBoxCapsAcquireAllSupported\n"));
1911	for (int i = 0; i < RT_ELEMENTS(pConsole->aCaps); ++i)
1912	{
1913	if (pConsole->aCaps[i].enmFuncState >= VBOXCAPS_ENTRY_FUNCSTATE_SUPPORTED)
1914	{
1915	Log(("VBoxCapsAcquireAllSupported acquiring cap %d, state %d\n", i, pConsole->aCaps[i].enmFuncState));
1916	VBoxCapsEntryAcquire(i);
1917	}
1918	else
1919	{
1920	LogFlowFunc(("VBoxCapsAcquireAllSupported: WARN: cap %d not supported, state %d\n", i, pConsole->aCaps[i].enmFuncState));
1921	}
1922	}
1923	return VINF_SUCCESS;
1924	}
1925
1926	static BOOL VBoxConsoleIsAllowed()
1927	{
1928	return vboxDtIsInputDesktop() && vboxStIsActiveConsole();
1929	}
1930
1931	static void VBoxConsoleEnable(BOOL fEnable)
1932	{
1933	if (fEnable)
1934	VBoxCapsAcquireAllSupported();
1935	else
1936	VBoxCapsReleaseAll();
1937	}
1938
1939	static void VBoxConsoleCapSetSupported(uint32_t iCap, BOOL fSupported)
1940	{
1941	if (fSupported)
1942	{
1943	VBoxCapsEntryFuncStateSet(iCap, VBOXCAPS_ENTRY_FUNCSTATE_SUPPORTED);
1944
1945	if (VBoxConsoleIsAllowed())
1946	VBoxCapsEntryAcquire(iCap);
1947	}
1948	else
1949	{
1950	VBoxCapsEntryFuncStateSet(iCap, VBOXCAPS_ENTRY_FUNCSTATE_UNSUPPORTED);
1951
1952	VBoxCapsEntryRelease(iCap);
1953	}
1954	}
1955
1956	void VBoxSeamlessSetSupported(BOOL fSupported)
1957	{
1958	VBoxConsoleCapSetSupported(VBOXCAPS_ENTRY_IDX_SEAMLESS, fSupported);
1959	}
1960
1961	static void VBoxGrapicsSetSupported(BOOL fSupported)
1962	{
1963	VBoxConsoleCapSetSupported(VBOXCAPS_ENTRY_IDX_GRAPHICS, fSupported);
1964	}

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source: vbox/trunk/src/VBox/Additions/WINNT/VBoxTray/VBoxTray.cpp@ 76098

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