VBoxServiceVMInfo.cpp@ 43793

Last change on this file since 43793 was 43793, checked in by vboxsync, 12 years ago
VBoxService/vminfo: Check for D-Bus loading on usage.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 43.4 KB

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1	/* $Id: VBoxServiceVMInfo.cpp 43793 2012-11-02 09:26:20Z vboxsync $ */
2	/** @file
3	* VBoxService - Virtual Machine Information for the Host.
4	*/
5
6	/*
7	* Copyright (C) 2009-2010 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19
20	/*******************************************************************************
21	* Header Files *
22	*******************************************************************************/
23	#ifdef RT_OS_WINDOWS
24	# ifdef TARGET_NT4 /* HACK ALERT! PMIB_IPSTATS undefined if 0x0400 with newer SDKs. */
25	# undef _WIN32_WINNT
26	# define _WIN32_WINNT 0x0500
27	# endif
28	# include <winsock2.h>
29	# include <iphlpapi.h>
30	# include <ws2tcpip.h>
31	# include <windows.h>
32	# include <Ntsecapi.h>
33	#else
34	# define __STDC_LIMIT_MACROS
35	# include <arpa/inet.h>
36	# include <errno.h>
37	# include <netinet/in.h>
38	# include <sys/ioctl.h>
39	# include <sys/socket.h>
40	# include <net/if.h>
41	# include <pwd.h> /* getpwuid */
42	# include <unistd.h>
43	# if !defined(RT_OS_OS2) && !defined(RT_OS_FREEBSD) && !defined(RT_OS_HAIKU)
44	# include <utmpx.h> /* @todo FreeBSD 9 should have this. */
45	# endif
46	# ifdef RT_OS_SOLARIS
47	# include <sys/sockio.h>
48	# include <net/if_arp.h>
49	# endif
50	# ifdef RT_OS_FREEBSD
51	# include <ifaddrs.h> /* getifaddrs, freeifaddrs */
52	# include <net/if_dl.h> /* LLADDR */
53	# include <netdb.h> /* getnameinfo */
54	# endif
55	# ifdef VBOX_WITH_DBUS
56	# include <VBox/dbus.h>
57	# endif
58	#endif
59
60	#include <iprt/mem.h>
61	#include <iprt/thread.h>
62	#include <iprt/string.h>
63	#include <iprt/semaphore.h>
64	#include <iprt/system.h>
65	#include <iprt/time.h>
66	#include <iprt/assert.h>
67	#include <VBox/version.h>
68	#include <VBox/VBoxGuestLib.h>
69	#include "VBoxServiceInternal.h"
70	#include "VBoxServiceUtils.h"
71	#include "VBoxServicePropCache.h"
72
73
74	/*******************************************************************************
75	* Global Variables *
76	*******************************************************************************/
77	/** The vminfo interval (milliseconds). */
78	static uint32_t g_cMsVMInfoInterval = 0;
79	/** The semaphore we're blocking on. */
80	static RTSEMEVENTMULTI g_hVMInfoEvent = NIL_RTSEMEVENTMULTI;
81	/** The guest property service client ID. */
82	static uint32_t g_uVMInfoGuestPropSvcClientID = 0;
83	/** Number of logged in users in OS. */
84	static uint32_t g_cVMInfoLoggedInUsers = UINT32_MAX;
85	/** The guest property cache. */
86	static VBOXSERVICEVEPROPCACHE g_VMInfoPropCache;
87	/** The VM session ID. Changes whenever the VM is restored or reset. */
88	static uint64_t g_idVMInfoSession;
89
90
91	/*******************************************************************************
92	* Defines *
93	*******************************************************************************/
94	#ifdef VBOX_WITH_DBUS
95	/** ConsoleKit defines (taken from 0.4.5). */
96	#define CK_NAME "org.freedesktop.ConsoleKit"
97	#define CK_PATH "/org/freedesktop/ConsoleKit"
98	#define CK_INTERFACE "org.freedesktop.ConsoleKit"
99
100	#define CK_MANAGER_PATH "/org/freedesktop/ConsoleKit/Manager"
101	#define CK_MANAGER_INTERFACE "org.freedesktop.ConsoleKit.Manager"
102	#define CK_SEAT_INTERFACE "org.freedesktop.ConsoleKit.Seat"
103	#define CK_SESSION_INTERFACE "org.freedesktop.ConsoleKit.Session"
104	#endif
105
106
107
108	/**
109	* Signals the event so that a re-enumeration of VM-specific
110	* information (like logged in users) can happen.
111	*
112	* @return IPRT status code.
113	*/
114	int VBoxServiceVMInfoSignal(void)
115	{
116	/* Trigger a re-enumeration of all logged-in users by unblocking
117	* the multi event semaphore of the VMInfo thread. */
118	if (g_hVMInfoEvent)
119	return RTSemEventMultiSignal(g_hVMInfoEvent);
120
121	return VINF_SUCCESS;
122	}
123
124
125	/** @copydoc VBOXSERVICE::pfnPreInit */
126	static DECLCALLBACK(int) VBoxServiceVMInfoPreInit(void)
127	{
128	return VINF_SUCCESS;
129	}
130
131
132	/** @copydoc VBOXSERVICE::pfnOption */
133	static DECLCALLBACK(int) VBoxServiceVMInfoOption(const char ppszShort, int argc, char argv, int *pi)
134	{
135	int rc = -1;
136	if (ppszShort)
137	/* no short options */;
138	else if (!strcmp(argv[*pi], "--vminfo-interval"))
139	rc = VBoxServiceArgUInt32(argc, argv, "", pi,
140	&g_cMsVMInfoInterval, 1, UINT32_MAX - 1);
141	return rc;
142	}
143
144
145	/** @copydoc VBOXSERVICE::pfnInit */
146	static DECLCALLBACK(int) VBoxServiceVMInfoInit(void)
147	{
148	/*
149	* If not specified, find the right interval default.
150	* Then create the event sem to block on.
151	*/
152	if (!g_cMsVMInfoInterval)
153	g_cMsVMInfoInterval = g_DefaultInterval * 1000;
154	if (!g_cMsVMInfoInterval)
155	g_cMsVMInfoInterval = 10 * 1000;
156
157	int rc = RTSemEventMultiCreate(&g_hVMInfoEvent);
158	AssertRCReturn(rc, rc);
159
160	VbglR3GetSessionId(&g_idVMInfoSession);
161	/* The status code is ignored as this information is not available with VBox < 3.2.10. */
162
163	rc = VbglR3GuestPropConnect(&g_uVMInfoGuestPropSvcClientID);
164	if (RT_SUCCESS(rc))
165	VBoxServiceVerbose(3, "VMInfo: Property Service Client ID: %#x\n", g_uVMInfoGuestPropSvcClientID);
166	else
167	{
168	/* If the service was not found, we disable this service without
169	causing VBoxService to fail. */
170	if (rc == VERR_HGCM_SERVICE_NOT_FOUND) /* Host service is not available. */
171	{
172	VBoxServiceVerbose(0, "VMInfo: Guest property service is not available, disabling the service\n");
173	rc = VERR_SERVICE_DISABLED;
174	}
175	else
176	VBoxServiceError("VMInfo: Failed to connect to the guest property service! Error: %Rrc\n", rc);
177	RTSemEventMultiDestroy(g_hVMInfoEvent);
178	g_hVMInfoEvent = NIL_RTSEMEVENTMULTI;
179	}
180
181	if (RT_SUCCESS(rc))
182	{
183	VBoxServicePropCacheCreate(&g_VMInfoPropCache, g_uVMInfoGuestPropSvcClientID);
184
185	/*
186	* Declare some guest properties with flags and reset values.
187	*/
188	VBoxServicePropCacheUpdateEntry(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/LoggedInUsersList",
189	VBOXSERVICEPROPCACHEFLAG_TEMPORARY \| VBOXSERVICEPROPCACHEFLAG_TRANSIENT, NULL /* Delete on exit */);
190	VBoxServicePropCacheUpdateEntry(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/LoggedInUsers",
191	VBOXSERVICEPROPCACHEFLAG_TEMPORARY \| VBOXSERVICEPROPCACHEFLAG_TRANSIENT, "0");
192	VBoxServicePropCacheUpdateEntry(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/NoLoggedInUsers",
193	VBOXSERVICEPROPCACHEFLAG_TEMPORARY \| VBOXSERVICEPROPCACHEFLAG_TRANSIENT, "true");
194	VBoxServicePropCacheUpdateEntry(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/Net/Count",
195	VBOXSERVICEPROPCACHEFLAG_TEMPORARY \| VBOXSERVICEPROPCACHEFLAG_ALWAYS_UPDATE, NULL /* Delete on exit */);
196	}
197	return rc;
198	}
199
200
201	/**
202	* Writes the properties that won't change while the service is running.
203	*
204	* Errors are ignored.
205	*/
206	static void vboxserviceVMInfoWriteFixedProperties(void)
207	{
208	/*
209	* First get OS information that won't change.
210	*/
211	char szInfo[256];
212	int rc = RTSystemQueryOSInfo(RTSYSOSINFO_PRODUCT, szInfo, sizeof(szInfo));
213	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestInfo/OS/Product",
214	"%s", RT_FAILURE(rc) ? "" : szInfo);
215
216	rc = RTSystemQueryOSInfo(RTSYSOSINFO_RELEASE, szInfo, sizeof(szInfo));
217	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestInfo/OS/Release",
218	"%s", RT_FAILURE(rc) ? "" : szInfo);
219
220	rc = RTSystemQueryOSInfo(RTSYSOSINFO_VERSION, szInfo, sizeof(szInfo));
221	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestInfo/OS/Version",
222	"%s", RT_FAILURE(rc) ? "" : szInfo);
223
224	rc = RTSystemQueryOSInfo(RTSYSOSINFO_SERVICE_PACK, szInfo, sizeof(szInfo));
225	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestInfo/OS/ServicePack",
226	"%s", RT_FAILURE(rc) ? "" : szInfo);
227
228	/*
229	* Retrieve version information about Guest Additions and installed files (components).
230	*/
231	char *pszAddVer;
232	char *pszAddVerExt;
233	char *pszAddRev;
234	rc = VbglR3GetAdditionsVersion(&pszAddVer, &pszAddVerExt, &pszAddRev);
235	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestAdd/Version",
236	"%s", RT_FAILURE(rc) ? "" : pszAddVer);
237	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestAdd/VersionExt",
238	"%s", RT_FAILURE(rc) ? "" : pszAddVerExt);
239	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestAdd/Revision",
240	"%s", RT_FAILURE(rc) ? "" : pszAddRev);
241	if (RT_SUCCESS(rc))
242	{
243	RTStrFree(pszAddVer);
244	RTStrFree(pszAddVerExt);
245	RTStrFree(pszAddRev);
246	}
247
248	#ifdef RT_OS_WINDOWS
249	/*
250	* Do windows specific properties.
251	*/
252	char *pszInstDir;
253	rc = VbglR3GetAdditionsInstallationPath(&pszInstDir);
254	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestAdd/InstallDir",
255	"%s", RT_FAILURE(rc) ? "" : pszInstDir);
256	if (RT_SUCCESS(rc))
257	RTStrFree(pszInstDir);
258
259	VBoxServiceWinGetComponentVersions(g_uVMInfoGuestPropSvcClientID);
260	#endif
261	}
262
263	#if defined(VBOX_WITH_DBUS) && defined(RT_OS_LINUX) /* Not yet for Solaris/FreeBSB. */
264	/*
265	* Simple wrapper to work around compiler-specific va_list madness.
266	*/
267	static dbus_bool_t vboxService_dbus_message_get_args(DBusMessage *message,
268	DBusError *error,
269	int first_arg_type,
270	...)
271	{
272	va_list va;
273	va_start(va, first_arg_type);
274	dbus_bool_t ret = dbus_message_get_args_valist(message, error,
275	first_arg_type, va);
276	va_end(va);
277	return ret;
278	}
279	#endif
280
281	/**
282	* Provide information about active users.
283	*/
284	static int vboxserviceVMInfoWriteUsers(void)
285	{
286	int rc = VINF_SUCCESS;
287	char *pszUserList = NULL;
288	uint32_t cUsersInList = 0;
289
290	#ifdef RT_OS_WINDOWS
291	# ifndef TARGET_NT4
292	rc = VBoxServiceVMInfoWinWriteUsers(&pszUserList, &cUsersInList);
293	# else
294	rc = VERR_NOT_IMPLEMENTED;
295	# endif
296
297	#elif defined(RT_OS_FREEBSD)
298	/** @todo FreeBSD: Port logged on user info retrieval.
299	* However, FreeBSD 9 supports utmpx, so we could use the code
300	* block below (?). */
301	rc = VERR_NOT_IMPLEMENTED;
302
303	#elif defined(RT_OS_HAIKU)
304	/** @todo Haiku: Port logged on user info retrieval. */
305	rc = VERR_NOT_IMPLEMENTED;
306
307	#elif defined(RT_OS_OS2)
308	/** @todo OS/2: Port logged on (LAN/local/whatever) user info retrieval. */
309	rc = VERR_NOT_IMPLEMENTED;
310
311	#else
312	setutxent();
313	utmpx *ut_user;
314	uint32_t cListSize = 32;
315
316	/* Allocate a first array to hold 32 users max. */
317	char papszUsers = (char )RTMemAllocZ(cListSize * sizeof(char *));
318	if (papszUsers == NULL)
319	rc = VERR_NO_MEMORY;
320
321	/* Process all entries in the utmp file.
322	* Note: This only handles */
323	while ( (ut_user = getutxent())
324	&& RT_SUCCESS(rc))
325	{
326	VBoxServiceVerbose(4, "Found entry \"%s\" (type: %d, PID: %RU32, session: %RU32)\n",
327	ut_user->ut_user, ut_user->ut_type, ut_user->ut_pid, ut_user->ut_session);
328	if (cUsersInList > cListSize)
329	{
330	cListSize += 32;
331	void pvNew = RTMemRealloc(papszUsers, cListSize sizeof(char*));
332	AssertPtrBreakStmt(pvNew, cListSize -= 32);
333	papszUsers = (char **)pvNew;
334	}
335
336	/* Make sure we don't add user names which are not
337	* part of type USER_PROCES. */
338	if (ut_user->ut_type == USER_PROCESS) /* Regular user process. */
339	{
340	bool fFound = false;
341	for (uint32_t i = 0; i < cUsersInList && !fFound; i++)
342	fFound = strcmp(papszUsers[i], ut_user->ut_user) == 0;
343
344	if (!fFound)
345	{
346	VBoxServiceVerbose(4, "Adding user \"%s\" (type: %d) to list\n",
347	ut_user->ut_user, ut_user->ut_type);
348
349	rc = RTStrDupEx(&papszUsers[cUsersInList], (const char *)ut_user->ut_user);
350	if (RT_FAILURE(rc))
351	break;
352	cUsersInList++;
353	}
354	}
355	}
356
357	#ifdef VBOX_WITH_DBUS
358	# if defined(RT_OS_LINUX) /* Not yet for Solaris/FreeBSB. */
359	DBusError dbErr;
360	DBusConnection *pConnection = NULL;
361	int rc2 = RTDBusLoadLib();
362	if (RT_SUCCESS(rc2))
363	{
364	/* Handle desktop sessions using ConsoleKit. */
365	VBoxServiceVerbose(4, "Checking ConsoleKit sessions ...\n");
366
367	dbus_error_init(&dbErr);
368	pConnection = dbus_bus_get(DBUS_BUS_SYSTEM, &dbErr);
369	}
370
371	if ( pConnection
372	&& !dbus_error_is_set(&dbErr))
373	{
374	/* Get all available sessions. */
375	DBusMessage *pMsgSessions = dbus_message_new_method_call("org.freedesktop.ConsoleKit",
376	"/org/freedesktop/ConsoleKit/Manager",
377	"org.freedesktop.ConsoleKit.Manager",
378	"GetSessions");
379	if ( pMsgSessions
380	&& (dbus_message_get_type(pMsgSessions) == DBUS_MESSAGE_TYPE_METHOD_CALL))
381	{
382	DBusMessage *pReplySessions = dbus_connection_send_with_reply_and_block(pConnection,
383	pMsgSessions, 30 * 1000 /* 30s timeout */,
384	&dbErr);
385	if ( pReplySessions
386	&& !dbus_error_is_set(&dbErr))
387	{
388	char **ppszSessions; int cSessions;
389	if ( (dbus_message_get_type(pMsgSessions) == DBUS_MESSAGE_TYPE_METHOD_CALL)
390	&& vboxService_dbus_message_get_args(pReplySessions, &dbErr, DBUS_TYPE_ARRAY,
391	DBUS_TYPE_OBJECT_PATH, &ppszSessions, &cSessions,
392	DBUS_TYPE_INVALID /* Termination */))
393	{
394	VBoxServiceVerbose(4, "ConsoleKit: retrieved %RU16 session(s)\n", cSessions);
395	AssertPtr(*ppszSessions);
396
397	char **ppszCurSession = ppszSessions;
398	for (ppszCurSession; *ppszCurSession; ppszCurSession++)
399	{
400	VBoxServiceVerbose(4, "ConsoleKit: processing session '%s' ...\n", *ppszCurSession);
401
402	/* *ppszCurSession now contains the object path
403	* (e.g. "/org/freedesktop/ConsoleKit/Session1"). */
404	DBusMessage *pMsgUnixUser = dbus_message_new_method_call("org.freedesktop.ConsoleKit",
405	*ppszCurSession,
406	"org.freedesktop.ConsoleKit.Session",
407	"GetUnixUser");
408	if ( pMsgUnixUser
409	&& dbus_message_get_type(pMsgUnixUser) == DBUS_MESSAGE_TYPE_METHOD_CALL)
410	{
411	DBusMessage *pReplyUnixUser = dbus_connection_send_with_reply_and_block(pConnection,
412	pMsgUnixUser, 30 * 1000 /* 30s timeout */,
413	&dbErr);
414	if ( pReplyUnixUser
415	&& !dbus_error_is_set(&dbErr))
416	{
417	DBusMessageIter itMsg;
418	if ( dbus_message_iter_init(pReplyUnixUser, &itMsg)
419	&& dbus_message_iter_get_arg_type(&itMsg) == DBUS_TYPE_UINT32)
420	{
421	/* Get uid from message. */
422	uint32_t uid;
423	dbus_message_iter_get_basic(&itMsg, &uid);
424
425	/* Look up user name (realname) from uid. */
426	setpwent();
427	struct passwd *ppwEntry = getpwuid(uid);
428	if ( ppwEntry
429	&& ppwEntry->pw_name)
430	{
431	VBoxServiceVerbose(4, "ConsoleKit: session '%s' -> %s (uid: %RU32)\n",
432	*ppszCurSession, ppwEntry->pw_name, uid);
433
434	bool fFound = false;
435	for (uint32_t i = 0; i < cUsersInList && !fFound; i++)
436	fFound = strcmp(papszUsers[i], ppwEntry->pw_name) == 0;
437
438	if (!fFound)
439	{
440	VBoxServiceVerbose(4, "ConsoleKit: adding user \"%s\" to list\n",
441	ppwEntry->pw_name);
442
443	rc = RTStrDupEx(&papszUsers[cUsersInList], (const char *)ppwEntry->pw_name);
444	if (RT_FAILURE(rc))
445	break;
446	cUsersInList++;
447	}
448	}
449	else
450	VBoxServiceError("ConsoleKit: unable to lookup user name for uid=%RU32\n", uid);
451	}
452	else
453	AssertMsgFailed(("ConsoleKit: GetUnixUser returned a wrong argument type\n"));
454	}
455
456	if (pReplyUnixUser)
457	dbus_message_unref(pReplyUnixUser);
458	}
459	else
460	VBoxServiceError("ConsoleKit: unable to retrieve user for session '%s' (msg type=%d): %s",
461	*ppszCurSession, dbus_message_get_type(pMsgUnixUser),
462	dbus_error_is_set(&dbErr) ? dbErr.message : "No error information available\n");
463
464	if (pMsgUnixUser)
465	dbus_message_unref(pMsgUnixUser);
466	}
467
468	dbus_free_string_array(ppszSessions);
469	}
470	else
471	{
472	VBoxServiceError("ConsoleKit: unable to retrieve session parameters (msg type=%d): %s",
473	dbus_message_get_type(pMsgSessions),
474	dbus_error_is_set(&dbErr) ? dbErr.message : "No error information available\n");
475	}
476	dbus_message_unref(pReplySessions);
477	}
478
479	if (pMsgSessions)
480	{
481	dbus_message_unref(pMsgSessions);
482	pMsgSessions = NULL;
483	}
484	}
485	else
486	{
487	static int s_iBitchedAboutConsoleKit = 0;
488	if (s_iBitchedAboutConsoleKit++ < 3)
489	VBoxServiceError("Unable to invoke ConsoleKit (%d/3) -- maybe not installed / used? Error: %s\n",
490	s_iBitchedAboutConsoleKit,
491	dbus_error_is_set(&dbErr) ? dbErr.message : "No error information available\n");
492	}
493
494	if (pMsgSessions)
495	dbus_message_unref(pMsgSessions);
496	}
497	else
498	{
499	static int s_iBitchedAboutDBus = 0;
500	if (s_iBitchedAboutDBus++ < 3)
501	VBoxServiceError("Unable to connect to system D-Bus (%d/3): %s\n", s_iBitchedAboutDBus,
502	dbus_error_is_set(&dbErr) ? dbErr.message : "D-Bus not installed\n");
503	}
504
505	if (dbus_error_is_set(&dbErr))
506	dbus_error_free(&dbErr);
507	# endif /* RT_OS_LINUX */
508	#endif /* VBOX_WITH_DBUS */
509
510	/** @todo Fedora/others: Handle systemd-loginctl. */
511
512	/* Calc the string length. */
513	size_t cchUserList = 0;
514	if (RT_SUCCESS(rc))
515	{
516	for (uint32_t i = 0; i < cUsersInList; i++)
517	cchUserList += (i != 0) + strlen(papszUsers[i]);
518	}
519
520	/* Build the user list. */
521	if (RT_SUCCESS(rc))
522	rc = RTStrAllocEx(&pszUserList, cchUserList + 1);
523	if (RT_SUCCESS(rc))
524	{
525	char *psz = pszUserList;
526	for (uint32_t i = 0; i < cUsersInList; i++)
527	{
528	if (i != 0)
529	*psz++ = ',';
530	size_t cch = strlen(papszUsers[i]);
531	memcpy(psz, papszUsers[i], cch);
532	psz += cch;
533	}
534	*psz = '\0';
535	}
536
537	/* Cleanup. */
538	for (uint32_t i = 0; i < cUsersInList; i++)
539	RTStrFree(papszUsers[i]);
540	RTMemFree(papszUsers);
541
542	endutxent(); /* Close utmpx file. */
543	#endif
544	Assert(RT_FAILURE(rc) \|\| cUsersInList == 0 \|\| (pszUserList && *pszUserList));
545
546	/* If the user enumeration above failed, reset the user count to 0 except
547	* we didn't have enough memory anymore. In that case we want to preserve
548	* the previous user count in order to not confuse third party tools which
549	* rely on that count. */
550	if (RT_FAILURE(rc))
551	{
552	if (rc == VERR_NO_MEMORY)
553	{
554	static int s_iVMInfoBitchedOOM = 0;
555	if (s_iVMInfoBitchedOOM++ < 3)
556	VBoxServiceVerbose(0, "Warning: Not enough memory available to enumerate users! Keeping old value (%u)\n",
557	g_cVMInfoLoggedInUsers);
558	cUsersInList = g_cVMInfoLoggedInUsers;
559	}
560	else
561	cUsersInList = 0;
562	}
563
564	VBoxServiceVerbose(4, "cUsersInList=%RU32, pszUserList=%s, rc=%Rrc\n",
565	cUsersInList, pszUserList ? pszUserList : "<NULL>", rc);
566
567	if (pszUserList && cUsersInList > 0)
568	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/LoggedInUsersList", "%s", pszUserList);
569	else
570	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/LoggedInUsersList", NULL);
571	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/LoggedInUsers", "%u", cUsersInList);
572	if (g_cVMInfoLoggedInUsers != cUsersInList)
573	{
574	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/NoLoggedInUsers",
575	cUsersInList == 0 ? "true" : "false");
576	g_cVMInfoLoggedInUsers = cUsersInList;
577	}
578
579	if (RT_SUCCESS(rc) && pszUserList)
580	RTStrFree(pszUserList);
581	return rc;
582	}
583
584
585	/**
586	* Provide information about the guest network.
587	*/
588	static int vboxserviceVMInfoWriteNetwork(void)
589	{
590	int rc = VINF_SUCCESS;
591	uint32_t cIfacesReport = 0;
592	char szPropPath[256];
593
594	#ifdef RT_OS_WINDOWS
595	IP_ADAPTER_INFO *pAdpInfo = NULL;
596
597	# ifndef TARGET_NT4
598	ULONG cbAdpInfo = sizeof(*pAdpInfo);
599	pAdpInfo = (IP_ADAPTER_INFO *)RTMemAlloc(cbAdpInfo);
600	if (!pAdpInfo)
601	{
602	VBoxServiceError("VMInfo/Network: Failed to allocate IP_ADAPTER_INFO\n");
603	return VERR_NO_MEMORY;
604	}
605	DWORD dwRet = GetAdaptersInfo(pAdpInfo, &cbAdpInfo);
606	if (dwRet == ERROR_BUFFER_OVERFLOW)
607	{
608	IP_ADAPTER_INFO pAdpInfoNew = (IP_ADAPTER_INFO)RTMemRealloc(pAdpInfo, cbAdpInfo);
609	if (pAdpInfoNew)
610	{
611	pAdpInfo = pAdpInfoNew;
612	dwRet = GetAdaptersInfo(pAdpInfo, &cbAdpInfo);
613	}
614	}
615	else if (dwRet == ERROR_NO_DATA)
616	{
617	VBoxServiceVerbose(3, "VMInfo/Network: No network adapters available\n");
618
619	/* If no network adapters available / present in the
620	* system we pretend success to not bail out too early. */
621	dwRet = ERROR_SUCCESS;
622	}
623
624	if (dwRet != ERROR_SUCCESS)
625	{
626	if (pAdpInfo)
627	RTMemFree(pAdpInfo);
628	VBoxServiceError("VMInfo/Network: Failed to get adapter info: Error %d\n", dwRet);
629	return RTErrConvertFromWin32(dwRet);
630	}
631	# endif /* !TARGET_NT4 */
632
633	SOCKET sd = WSASocket(AF_INET, SOCK_DGRAM, 0, 0, 0, 0);
634	if (sd == SOCKET_ERROR) /* Socket invalid. */
635	{
636	int wsaErr = WSAGetLastError();
637	/* Don't complain/bail out with an error if network stack is not up; can happen
638	* on NT4 due to start up when not connected shares dialogs pop up. */
639	if (WSAENETDOWN == wsaErr)
640	{
641	VBoxServiceVerbose(0, "VMInfo/Network: Network is not up yet.\n");
642	wsaErr = VINF_SUCCESS;
643	}
644	else
645	VBoxServiceError("VMInfo/Network: Failed to get a socket: Error %d\n", wsaErr);
646	if (pAdpInfo)
647	RTMemFree(pAdpInfo);
648	return RTErrConvertFromWin32(wsaErr);
649	}
650
651	INTERFACE_INFO InterfaceList[20] = {0};
652	unsigned long nBytesReturned = 0;
653	if (WSAIoctl(sd,
654	SIO_GET_INTERFACE_LIST,
655	0,
656	0,
657	&InterfaceList,
658	sizeof(InterfaceList),
659	&nBytesReturned,
660	0,
661	0) == SOCKET_ERROR)
662	{
663	VBoxServiceError("VMInfo/Network: Failed to WSAIoctl() on socket: Error: %d\n", WSAGetLastError());
664	if (pAdpInfo)
665	RTMemFree(pAdpInfo);
666	return RTErrConvertFromWin32(WSAGetLastError());
667	}
668	int cIfacesSystem = nBytesReturned / sizeof(INTERFACE_INFO);
669
670	/** @todo Use GetAdaptersInfo() and GetAdapterAddresses (IPv4 + IPv6) for more information. */
671	for (int i = 0; i < cIfacesSystem; ++i)
672	{
673	sockaddr_in *pAddress;
674	u_long nFlags = 0;
675	if (InterfaceList[i].iiFlags & IFF_LOOPBACK) /* Skip loopback device. */
676	continue;
677	nFlags = InterfaceList[i].iiFlags;
678	pAddress = (sockaddr_in *)&(InterfaceList[i].iiAddress);
679	Assert(pAddress);
680	char szIp[32];
681	RTStrPrintf(szIp, sizeof(szIp), "%s", inet_ntoa(pAddress->sin_addr));
682	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/IP", cIfacesReport);
683	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szIp);
684
685	pAddress = (sockaddr_in *) & (InterfaceList[i].iiBroadcastAddress);
686	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Broadcast", cIfacesReport);
687	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", inet_ntoa(pAddress->sin_addr));
688
689	pAddress = (sockaddr_in *)&(InterfaceList[i].iiNetmask);
690	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Netmask", cIfacesReport);
691	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", inet_ntoa(pAddress->sin_addr));
692
693	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/Status", cIfacesReport);
694	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, nFlags & IFF_UP ? "Up" : "Down");
695
696	# ifndef TARGET_NT4
697	IP_ADAPTER_INFO *pAdp;
698	for (pAdp = pAdpInfo; pAdp; pAdp = pAdp->Next)
699	if (!strcmp(pAdp->IpAddressList.IpAddress.String, szIp))
700	break;
701
702	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/MAC", cIfacesReport);
703	if (pAdp)
704	{
705	char szMac[32];
706	RTStrPrintf(szMac, sizeof(szMac), "%02X%02X%02X%02X%02X%02X",
707	pAdp->Address[0], pAdp->Address[1], pAdp->Address[2],
708	pAdp->Address[3], pAdp->Address[4], pAdp->Address[5]);
709	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szMac);
710	}
711	else
712	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, NULL);
713	# endif /* !TARGET_NT4 */
714
715	cIfacesReport++;
716	}
717	if (pAdpInfo)
718	RTMemFree(pAdpInfo);
719	if (sd >= 0)
720	closesocket(sd);
721
722	#elif defined(RT_OS_HAIKU)
723	/** @todo Haiku: implement network info. retreival */
724	return VERR_NOT_IMPLEMENTED;
725
726	#elif defined(RT_OS_FREEBSD)
727	struct ifaddrs *pIfHead = NULL;
728
729	/* Get all available interfaces */
730	rc = getifaddrs(&pIfHead);
731	if (rc < 0)
732	{
733	rc = RTErrConvertFromErrno(errno);
734	VBoxServiceError("VMInfo/Network: Failed to get all interfaces: Error %Rrc\n");
735	return rc;
736	}
737
738	/* Loop through all interfaces and set the data. */
739	for (struct ifaddrs *pIfCurr = pIfHead; pIfCurr; pIfCurr = pIfCurr->ifa_next)
740	{
741	/*
742	* Only AF_INET and no loopback interfaces
743	* @todo: IPv6 interfaces
744	*/
745	if ( pIfCurr->ifa_addr->sa_family == AF_INET
746	&& !(pIfCurr->ifa_flags & IFF_LOOPBACK))
747	{
748	char szInetAddr[NI_MAXHOST];
749
750	memset(szInetAddr, 0, NI_MAXHOST);
751	getnameinfo(pIfCurr->ifa_addr, sizeof(struct sockaddr_in),
752	szInetAddr, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
753	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/IP", cIfacesReport);
754	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szInetAddr);
755
756	memset(szInetAddr, 0, NI_MAXHOST);
757	getnameinfo(pIfCurr->ifa_broadaddr, sizeof(struct sockaddr_in),
758	szInetAddr, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
759	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Broadcast", cIfacesReport);
760	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szInetAddr);
761
762	memset(szInetAddr, 0, NI_MAXHOST);
763	getnameinfo(pIfCurr->ifa_netmask, sizeof(struct sockaddr_in),
764	szInetAddr, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
765	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Netmask", cIfacesReport);
766	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szInetAddr);
767
768	/* Search for the AF_LINK interface of the current AF_INET one and get the mac. */
769	for (struct ifaddrs *pIfLinkCurr = pIfHead; pIfLinkCurr; pIfLinkCurr = pIfLinkCurr->ifa_next)
770	{
771	if ( pIfLinkCurr->ifa_addr->sa_family == AF_LINK
772	&& !strcmp(pIfCurr->ifa_name, pIfLinkCurr->ifa_name))
773	{
774	char szMac[32];
775	uint8_t *pu8Mac = NULL;
776	struct sockaddr_dl pLinkAddress = (struct sockaddr_dl )pIfLinkCurr->ifa_addr;
777
778	AssertPtr(pLinkAddress);
779	pu8Mac = (uint8_t *)LLADDR(pLinkAddress);
780	RTStrPrintf(szMac, sizeof(szMac), "%02X%02X%02X%02X%02X%02X",
781	pu8Mac[0], pu8Mac[1], pu8Mac[2], pu8Mac[3], pu8Mac[4], pu8Mac[5]);
782	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/MAC", cIfacesReport);
783	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szMac);
784	break;
785	}
786	}
787
788	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/Status", cIfacesReport);
789	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, pIfCurr->ifa_flags & IFF_UP ? "Up" : "Down");
790
791	cIfacesReport++;
792	}
793	}
794
795	/* Free allocated resources. */
796	freeifaddrs(pIfHead);
797
798	#else /* !RT_OS_WINDOWS && !RT_OS_FREEBSD */
799	int sd = socket(AF_INET, SOCK_DGRAM, 0);
800	if (sd < 0)
801	{
802	rc = RTErrConvertFromErrno(errno);
803	VBoxServiceError("VMInfo/Network: Failed to get a socket: Error %Rrc\n", rc);
804	return rc;
805	}
806
807	ifconf ifcfg;
808	char buffer[1024] = {0};
809	ifcfg.ifc_len = sizeof(buffer);
810	ifcfg.ifc_buf = buffer;
811	if (ioctl(sd, SIOCGIFCONF, &ifcfg) < 0)
812	{
813	close(sd);
814	rc = RTErrConvertFromErrno(errno);
815	VBoxServiceError("VMInfo/Network: Failed to ioctl(SIOCGIFCONF) on socket: Error %Rrc\n", rc);
816	return rc;
817	}
818
819	ifreq* ifrequest = ifcfg.ifc_req;
820	int cIfacesSystem = ifcfg.ifc_len / sizeof(ifreq);
821
822	for (int i = 0; i < cIfacesSystem; ++i)
823	{
824	sockaddr_in *pAddress;
825	if (ioctl(sd, SIOCGIFFLAGS, &ifrequest[i]) < 0)
826	{
827	rc = RTErrConvertFromErrno(errno);
828	VBoxServiceError("VMInfo/Network: Failed to ioctl(SIOCGIFFLAGS) on socket: Error %Rrc\n", rc);
829	break;
830	}
831	if (ifrequest[i].ifr_flags & IFF_LOOPBACK) /* Skip the loopback device. */
832	continue;
833
834	bool fIfUp = !!(ifrequest[i].ifr_flags & IFF_UP);
835	pAddress = ((sockaddr_in *)&ifrequest[i].ifr_addr);
836	Assert(pAddress);
837	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/IP", cIfacesReport);
838	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", inet_ntoa(pAddress->sin_addr));
839
840	if (ioctl(sd, SIOCGIFBRDADDR, &ifrequest[i]) < 0)
841	{
842	rc = RTErrConvertFromErrno(errno);
843	VBoxServiceError("VMInfo/Network: Failed to ioctl(SIOCGIFBRDADDR) on socket: Error %Rrc\n", rc);
844	break;
845	}
846	pAddress = (sockaddr_in *)&ifrequest[i].ifr_broadaddr;
847	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Broadcast", cIfacesReport);
848	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", inet_ntoa(pAddress->sin_addr));
849
850	if (ioctl(sd, SIOCGIFNETMASK, &ifrequest[i]) < 0)
851	{
852	rc = RTErrConvertFromErrno(errno);
853	VBoxServiceError("VMInfo/Network: Failed to ioctl(SIOCGIFNETMASK) on socket: Error %Rrc\n", rc);
854	break;
855	}
856	# if defined(RT_OS_OS2) \|\| defined(RT_OS_SOLARIS)
857	pAddress = (sockaddr_in *)&ifrequest[i].ifr_addr;
858	# else
859	pAddress = (sockaddr_in *)&ifrequest[i].ifr_netmask;
860	# endif
861
862	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Netmask", cIfacesReport);
863	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", inet_ntoa(pAddress->sin_addr));
864
865	# if defined(RT_OS_SOLARIS)
866	/*
867	* "ifreq" is obsolete on Solaris. We use the recommended "lifreq".
868	* We might fail if the interface has not been assigned an IP address.
869	* That doesn't matter; as long as it's plumbed we can pick it up.
870	* But, if it has not acquired an IP address we cannot obtain it's MAC
871	* address this way, so we just use all zeros there.
872	*/
873	RTMAC IfMac;
874	RT_ZERO(IfMac);
875	struct lifreq IfReq;
876	RT_ZERO(IfReq);
877	AssertCompile(sizeof(IfReq.lifr_name) >= sizeof(ifrequest[i].ifr_name));
878	strncpy(IfReq.lifr_name, ifrequest[i].ifr_name, sizeof(ifrequest[i].ifr_name));
879	if (ioctl(sd, SIOCGLIFADDR, &IfReq) >= 0)
880	{
881	struct arpreq ArpReq;
882	RT_ZERO(ArpReq);
883	memcpy(&ArpReq.arp_pa, &IfReq.lifr_addr, sizeof(struct sockaddr_in));
884
885	if (ioctl(sd, SIOCGARP, &ArpReq) >= 0)
886	memcpy(&IfMac, ArpReq.arp_ha.sa_data, sizeof(IfMac));
887	else
888	{
889	rc = RTErrConvertFromErrno(errno);
890	VBoxServiceError("VMInfo/Network: failed to ioctl(SIOCGARP) on socket: Error %Rrc\n", rc);
891	break;
892	}
893	}
894	else
895	{
896	VBoxServiceVerbose(2, "VMInfo/Network: Interface %d has no assigned IP address, skipping ...\n", i);
897	continue;
898	}
899	# else
900	# ifndef RT_OS_OS2 /** @todo port this to OS/2 */
901	if (ioctl(sd, SIOCGIFHWADDR, &ifrequest[i]) < 0)
902	{
903	rc = RTErrConvertFromErrno(errno);
904	VBoxServiceError("VMInfo/Network: Failed to ioctl(SIOCGIFHWADDR) on socket: Error %Rrc\n", rc);
905	break;
906	}
907	# endif
908	# endif
909
910	# ifndef RT_OS_OS2 /** @todo port this to OS/2 */
911	char szMac[32];
912	# if defined(RT_OS_SOLARIS)
913	uint8_t *pu8Mac = IfMac.au8;
914	# else
915	uint8_t pu8Mac = (uint8_t)&ifrequest[i].ifr_hwaddr.sa_data[0]; /* @todo see above */
916	# endif
917	RTStrPrintf(szMac, sizeof(szMac), "%02X%02X%02X%02X%02X%02X",
918	pu8Mac[0], pu8Mac[1], pu8Mac[2], pu8Mac[3], pu8Mac[4], pu8Mac[5]);
919	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/MAC", cIfacesReport);
920	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szMac);
921	# endif /* !OS/2*/
922
923	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/Status", cIfacesReport);
924	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, fIfUp ? "Up" : "Down");
925	cIfacesReport++;
926	} /* For all interfaces */
927
928	close(sd);
929	if (RT_FAILURE(rc))
930	VBoxServiceError("VMInfo/Network: Network enumeration for interface %u failed with error %Rrc\n", cIfacesReport, rc);
931
932	#endif /* !RT_OS_WINDOWS */
933
934	#if 0 /* Zapping not enabled yet, needs more testing first. */
935	/*
936	* Zap all stale network interface data if the former (saved) network ifaces count
937	* is bigger than the current one.
938	*/
939
940	/* Get former count. */
941	uint32_t cIfacesReportOld;
942	rc = VBoxServiceReadPropUInt32(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestInfo/Net/Count", &cIfacesReportOld,
943	0 /* Min /, UINT32_MAX / Max */);
944	if ( RT_SUCCESS(rc)
945	&& cIfacesReportOld > cIfacesReport) /* Are some ifaces not around anymore? */
946	{
947	VBoxServiceVerbose(3, "VMInfo/Network: Stale interface data detected (%u old vs. %u current)\n",
948	cIfacesReportOld, cIfacesReport);
949
950	uint32_t uIfaceDeleteIdx = cIfacesReport;
951	do
952	{
953	VBoxServiceVerbose(3, "VMInfo/Network: Deleting stale data of interface %d ...\n", uIfaceDeleteIdx);
954	rc = VBoxServicePropCacheUpdateByPath(&g_VMInfoPropCache, NULL /* Value, delete /, 0 / Flags */, "/VirtualBox/GuestInfo/Net/%u", uIfaceDeleteIdx++);
955	} while (RT_SUCCESS(rc));
956	}
957	else if ( RT_FAILURE(rc)
958	&& rc != VERR_NOT_FOUND)
959	{
960	VBoxServiceError("VMInfo/Network: Failed retrieving old network interfaces count with error %Rrc\n", rc);
961	}
962	#endif
963
964	/*
965	* This property is a beacon which is _always_ written, even if the network configuration
966	* does not change. If this property is missing, the host assumes that all other GuestInfo
967	* properties are no longer valid.
968	*/
969	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/Net/Count", "%d",
970	cIfacesReport);
971
972	/* Don't fail here; just report everything we got. */
973	return VINF_SUCCESS;
974	}
975
976
977	/** @copydoc VBOXSERVICE::pfnWorker */
978	DECLCALLBACK(int) VBoxServiceVMInfoWorker(bool volatile *pfShutdown)
979	{
980	int rc;
981
982	/*
983	* Tell the control thread that it can continue
984	* spawning services.
985	*/
986	RTThreadUserSignal(RTThreadSelf());
987
988	#ifdef RT_OS_WINDOWS
989	/* Required for network information (must be called per thread). */
990	WSADATA wsaData;
991	if (WSAStartup(MAKEWORD(2, 2), &wsaData))
992	VBoxServiceError("VMInfo/Network: WSAStartup failed! Error: %Rrc\n", RTErrConvertFromWin32(WSAGetLastError()));
993	#endif /* RT_OS_WINDOWS */
994
995	/*
996	* Write the fixed properties first.
997	*/
998	vboxserviceVMInfoWriteFixedProperties();
999
1000	/*
1001	* Now enter the loop retrieving runtime data continuously.
1002	*/
1003	for (;;)
1004	{
1005	rc = vboxserviceVMInfoWriteUsers();
1006	if (RT_FAILURE(rc))
1007	break;
1008
1009	rc = vboxserviceVMInfoWriteNetwork();
1010	if (RT_FAILURE(rc))
1011	break;
1012
1013	/*
1014	* Flush all properties if we were restored.
1015	*/
1016	uint64_t idNewSession = g_idVMInfoSession;
1017	VbglR3GetSessionId(&idNewSession);
1018	if (idNewSession != g_idVMInfoSession)
1019	{
1020	VBoxServiceVerbose(3, "VMInfo: The VM session ID changed, flushing all properties\n");
1021	vboxserviceVMInfoWriteFixedProperties();
1022	VBoxServicePropCacheFlush(&g_VMInfoPropCache);
1023	g_idVMInfoSession = idNewSession;
1024	}
1025
1026	/*
1027	* Block for a while.
1028	*
1029	* The event semaphore takes care of ignoring interruptions and it
1030	* allows us to implement service wakeup later.
1031	*/
1032	if (*pfShutdown)
1033	break;
1034	int rc2 = RTSemEventMultiWait(g_hVMInfoEvent, g_cMsVMInfoInterval);
1035	if (*pfShutdown)
1036	break;
1037	if (rc2 != VERR_TIMEOUT && RT_FAILURE(rc2))
1038	{
1039	VBoxServiceError("VMInfo: RTSemEventMultiWait failed; rc2=%Rrc\n", rc2);
1040	rc = rc2;
1041	break;
1042	}
1043	else if (RT_LIKELY(RT_SUCCESS(rc2)))
1044	{
1045	/* Reset event semaphore if it got triggered. */
1046	rc2 = RTSemEventMultiReset(g_hVMInfoEvent);
1047	if (RT_FAILURE(rc2))
1048	rc2 = VBoxServiceError("VMInfo: RTSemEventMultiReset failed; rc2=%Rrc\n", rc2);
1049	}
1050	}
1051
1052	#ifdef RT_OS_WINDOWS
1053	WSACleanup();
1054	#endif
1055
1056	return rc;
1057	}
1058
1059
1060	/** @copydoc VBOXSERVICE::pfnStop */
1061	static DECLCALLBACK(void) VBoxServiceVMInfoStop(void)
1062	{
1063	RTSemEventMultiSignal(g_hVMInfoEvent);
1064	}
1065
1066
1067	/** @copydoc VBOXSERVICE::pfnTerm */
1068	static DECLCALLBACK(void) VBoxServiceVMInfoTerm(void)
1069	{
1070	if (g_hVMInfoEvent != NIL_RTSEMEVENTMULTI)
1071	{
1072	/** @todo temporary solution: Zap all values which are not valid
1073	* anymore when VM goes down (reboot/shutdown ). Needs to
1074	* be replaced with "temporary properties" later.
1075	*
1076	* One idea is to introduce a (HGCM-)session guest property
1077	* flag meaning that a guest property is only valid as long
1078	* as the HGCM session isn't closed (e.g. guest application
1079	* terminates). [don't remove till implemented]
1080	*/
1081	/** @todo r=bird: Drop the VbglR3GuestPropDelSet call here and use the cache
1082	* since it remembers what we've written. */
1083	/* Delete the "../Net" branch. */
1084	const char apszPat[1] = { "/VirtualBox/GuestInfo/Net/" };
1085	int rc = VbglR3GuestPropDelSet(g_uVMInfoGuestPropSvcClientID, &apszPat[0], RT_ELEMENTS(apszPat));
1086
1087	/* Destroy property cache. */
1088	VBoxServicePropCacheDestroy(&g_VMInfoPropCache);
1089
1090	/* Disconnect from guest properties service. */
1091	rc = VbglR3GuestPropDisconnect(g_uVMInfoGuestPropSvcClientID);
1092	if (RT_FAILURE(rc))
1093	VBoxServiceError("VMInfo: Failed to disconnect from guest property service! Error: %Rrc\n", rc);
1094	g_uVMInfoGuestPropSvcClientID = 0;
1095
1096	RTSemEventMultiDestroy(g_hVMInfoEvent);
1097	g_hVMInfoEvent = NIL_RTSEMEVENTMULTI;
1098	}
1099	}
1100
1101
1102	/**
1103	* The 'vminfo' service description.
1104	*/
1105	VBOXSERVICE g_VMInfo =
1106	{
1107	/* pszName. */
1108	"vminfo",
1109	/* pszDescription. */
1110	"Virtual Machine Information",
1111	/* pszUsage. */
1112	" [--vminfo-interval <ms>]"
1113	,
1114	/* pszOptions. */
1115	" --vminfo-interval Specifies the interval at which to retrieve the\n"
1116	" VM information. The default is 10000 ms.\n"
1117	,
1118	/* methods */
1119	VBoxServiceVMInfoPreInit,
1120	VBoxServiceVMInfoOption,
1121	VBoxServiceVMInfoInit,
1122	VBoxServiceVMInfoWorker,
1123	VBoxServiceVMInfoStop,
1124	VBoxServiceVMInfoTerm
1125	};
1126

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source: vbox/trunk/src/VBox/Additions/common/VBoxService/VBoxServiceVMInfo.cpp@ 43793

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