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main.cpp

Last change on this file was 101878, checked in by vboxsync, 6 months ago
Additions: X11/Wayland: Add initial support for clipboard sharing with Gnome and Plasma Wayland guests (not yet enabled), bugref:10194.
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 33.8 KB

Rev	Line
[55401]	1	/* $Id: main.cpp 101878 2023-11-06 15:36:24Z vboxsync $ */
[6202]	2	/** @file
[68562]	3	* VirtualBox Guest Additions - X11 Client.
[6202]	4	*/
	5
	6	/*
[98103]	7	* Copyright (C) 2006-2023 Oracle and/or its affiliates.
[6202]	8	*
[96407]	9	* This file is part of VirtualBox base platform packages, as
	10	* available from https://www.virtualbox.org.
	11	*
	12	* This program is free software; you can redistribute it and/or
	13	* modify it under the terms of the GNU General Public License
	14	* as published by the Free Software Foundation, in version 3 of the
	15	* License.
	16	*
	17	* This program is distributed in the hope that it will be useful, but
	18	* WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	20	* General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, see <https://www.gnu.org/licenses>.
	24	*
	25	* SPDX-License-Identifier: GPL-3.0-only
[6202]	26	*/
	27
[76419]	28
	29	/*********************************************************************************************************************************
	30	* Header Files *
	31	*********************************************************************************************************************************/
[65672]	32	#include <sys/wait.h>
[6202]	33	#include <stdlib.h> /* For exit */
[84503]	34	#include <signal.h>
[18938]	35	#include <X11/Xlib.h>
[81052]	36	#include "product-generated.h"
[86872]	37	#include <iprt/asm.h>
[55440]	38	#include <iprt/buildconfig.h>
[32832]	39	#include <iprt/critsect.h>
[86871]	40	#include <iprt/errno.h>
[81057]	41	#include <iprt/getopt.h>
[18360]	42	#include <iprt/initterm.h>
[38636]	43	#include <iprt/message.h>
[18360]	44	#include <iprt/path.h>
	45	#include <iprt/stream.h>
[93551]	46	#include <iprt/env.h>
[98474]	47	#include <iprt/process.h>
	48	#include <iprt/linux/sysfs.h>
[21218]	49	#include <VBox/VBoxGuestLib.h>
[76419]	50	#include <VBox/err.h>
[86871]	51	#include <VBox/version.h>
[18360]	52	#include "VBoxClient.h"
[6202]	53
[76419]	54
	55	/*********************************************************************************************************************************
[81057]	56	* Defines *
	57	*********************************************************************************************************************************/
	58	#define VBOXCLIENT_OPT_SERVICES 980
	59	#define VBOXCLIENT_OPT_CHECKHOSTVERSION VBOXCLIENT_OPT_SERVICES
	60	#define VBOXCLIENT_OPT_CLIPBOARD VBOXCLIENT_OPT_SERVICES + 1
[83717]	61	#define VBOXCLIENT_OPT_DRAGANDDROP VBOXCLIENT_OPT_SERVICES + 2
	62	#define VBOXCLIENT_OPT_SEAMLESS VBOXCLIENT_OPT_SERVICES + 3
	63	#define VBOXCLIENT_OPT_VMSVGA VBOXCLIENT_OPT_SERVICES + 4
[93371]	64	#define VBOXCLIENT_OPT_VMSVGA_SESSION VBOXCLIENT_OPT_SERVICES + 5
[94306]	65	#define VBOXCLIENT_OPT_DISPLAY VBOXCLIENT_OPT_SERVICES + 6
[99658]	66	#define VBOXCLIENT_OPT_SESSION_DETECT VBOXCLIENT_OPT_SERVICES + 7
	67	#define VBOXCLIENT_OPT_SESSION_TYPE VBOXCLIENT_OPT_SERVICES + 8
[100246]	68	#define VBOXCLIENT_OPT_WAYLAND VBOXCLIENT_OPT_SERVICES + 9
[81057]	69
	70
	71	/*********************************************************************************************************************************
[86871]	72	* Local structures *
	73	*********************************************************************************************************************************/
	74	/**
	75	* The global service state.
	76	*/
	77	typedef struct VBCLSERVICESTATE
	78	{
	79	/** Pointer to the service descriptor. */
	80	PVBCLSERVICE pDesc;
	81	/** The worker thread. NIL_RTTHREAD if it's the main thread. */
	82	RTTHREAD Thread;
	83	/** Whether Pre-init was called. */
	84	bool fPreInited;
	85	/** Shutdown indicator. */
	86	bool volatile fShutdown;
	87	/** Indicator set by the service thread exiting. */
	88	bool volatile fStopped;
	89	/** Whether the service was started or not. */
	90	bool fStarted;
	91	} VBCLSERVICESTATE;
	92	/** Pointer to a service state. */
	93	typedef VBCLSERVICESTATE *PVBCLSERVICESTATE;
	94
	95
	96	/*********************************************************************************************************************************
[76419]	97	* Global Variables *
	98	*********************************************************************************************************************************/
[86871]	99	/** The global service state. */
[99585]	100	VBCLSERVICESTATE g_Service = { 0 };
[6202]	101
[86871]	102	/** Set by the signal handler when being called. */
[99585]	103	static volatile bool g_fSignalHandlerCalled = false;
[86871]	104	/** Critical section for the signal handler. */
[99585]	105	static RTCRITSECT g_csSignalHandler;
[99660]	106	/** Flag indicating Whether the service starts in daemonized mode or not. */
[99585]	107	bool g_fDaemonized = false;
[18360]	108	/** The name of our pidfile. It is global for the benefit of the cleanup
	109	* routine. */
[99585]	110	static char g_szPidFile[RTPATH_MAX] = "";
[18360]	111	/** The file handle of our pidfile. It is global for the benefit of the
	112	* cleanup routine. */
[99585]	113	static RTFILE g_hPidFile;
[98474]	114	/** The name of pidfile for parent (control) process. */
[99585]	115	static char g_szControlPidFile[RTPATH_MAX] = "";
[98474]	116	/** The file handle of parent process pidfile. */
[99585]	117	static RTFILE g_hControlPidFile;
[99620]	118	/** The display server type to use. */
	119	static VBGHDISPLAYSERVERTYPE g_enmDisplayServerType = VBGHDISPLAYSERVERTYPE_AUTO;
[98474]	120
[50281]	121	/** Global critical section held during the clean-up routine (to prevent it
	122	* being called on multiple threads at once) or things which may not happen
	123	* during clean-up (e.g. pausing and resuming the service).
[32832]	124	*/
[81052]	125	static RTCRITSECT g_critSect;
[81040]	126	/** Counter of how often our daemon has been respawned. */
[86871]	127	unsigned g_cRespawn = 0;
[81040]	128	/** Logging verbosity level. */
[86871]	129	unsigned g_cVerbosity = 0;
	130	/** Absolute path to log file, if any. */
[81052]	131	static char g_szLogFile[RTPATH_MAX + 128] = "";
[98474]	132	/** Set by the signal handler when SIGUSR1 received. */
	133	static volatile bool g_fProcessReloadRequested = false;
[7264]	134
[96876]	135
[68562]	136	/**
[86871]	137	* Shut down if we get a signal or something.
[68562]	138	*
	139	* This is extern so that we can call it from other compilation units.
	140	*/
[86871]	141	void VBClShutdown(bool fExit /=true/)
[6969]	142	{
[32832]	143	/* We never release this, as we end up with a call to exit(3) which is not
[50431]	144	* async-safe. Unless we fix this application properly, we should be sure
[32832]	145	* never to exit from anywhere except from this method. */
[50431]	146	int rc = RTCritSectEnter(&g_critSect);
[32832]	147	if (RT_FAILURE(rc))
[81040]	148	VBClLogFatalError("Failure while acquiring the global critical section, rc=%Rrc\n", rc);
[90053]	149
[90211]	150	/* Ask service to stop. */
	151	if (g_Service.pDesc &&
	152	g_Service.pDesc->pfnStop)
[90053]	153	{
[90211]	154	ASMAtomicWriteBool(&g_Service.fShutdown, true);
	155	g_Service.pDesc->pfnStop();
[90053]	156
	157	}
	158
[25954]	159	if (g_szPidFile[0] && g_hPidFile)
[25942]	160	VbglR3ClosePidFile(g_szPidFile, g_hPidFile);
[81052]	161
	162	VBClLogDestroy();
	163
[68562]	164	if (fExit)
	165	exit(RTEXITCODE_SUCCESS);
[6969]	166	}
	167
	168	/**
[99620]	169	* Returns the current display server type.
[99585]	170	*
[99620]	171	* @returns The display server type.
[99585]	172	*/
[99620]	173	VBGHDISPLAYSERVERTYPE VBClGetDisplayServerType(void)
[99585]	174	{
[99620]	175	return g_enmDisplayServerType;
[99585]	176	}
	177
	178	/**
[6290]	179	* Xlib error handler for certain errors that we can't avoid.
[6202]	180	*/
[52577]	181	static int vboxClientXLibErrorHandler(Display pDisplay, XErrorEvent pError)
[6202]	182	{
	183	char errorText[1024];
	184
	185	XGetErrorText(pDisplay, pError->error_code, errorText, sizeof(errorText));
[99585]	186	VBClLogError("An X Window protocol error occurred: %s (error code %d). Request code: %d, minor code: %d, serial number: %d\n",
	187	errorText, pError->error_code, pError->request_code, pError->minor_code, pError->serial);
[57357]	188	return 0;
[6202]	189	}
	190
[6969]	191	/**
	192	* Xlib error handler for fatal errors. This often means that the programme is still running
	193	* when X exits.
	194	*/
[18360]	195	static int vboxClientXLibIOErrorHandler(Display *pDisplay)
[6969]	196	{
[62883]	197	RT_NOREF1(pDisplay);
[86871]	198	VBClLogError("A fatal guest X Window error occurred. This may just mean that the Window system was shut down while the client was still running\n");
	199	VBClShutdown();
[18360]	200	return 0; /* We should never reach this. */
[6969]	201	}
	202
[7264]	203	/**
[86871]	204	* A standard signal handler which cleans up and exits.
[7264]	205	*/
[86871]	206	static void vboxClientSignalHandler(int iSignal)
[7264]	207	{
[101878]	208	int rc;
	209
	210	/* On Wayland, SIGPIPE might be issued if compositor no longer wants
	211	* to communicate. This should not be a reason for process termination. */
	212	if (iSignal == SIGPIPE)
	213	return;
	214
	215	rc = RTCritSectEnter(&g_csSignalHandler);
[86871]	216	if (RT_SUCCESS(rc))
	217	{
	218	if (g_fSignalHandlerCalled)
	219	{
	220	RTCritSectLeave(&g_csSignalHandler);
	221	return;
	222	}
	223
	224	VBClLogVerbose(2, "Received signal %d\n", iSignal);
	225	g_fSignalHandlerCalled = true;
	226
[98474]	227	/* In our internal convention, when VBoxClient process receives SIGUSR1,
	228	* this is a trigger for restarting a process with exec() call. Usually
	229	* happens as a result of Guest Additions update in order to seamlessly
	230	* restart newly installed binaries. */
	231	if (iSignal == SIGUSR1)
	232	g_fProcessReloadRequested = true;
	233
[86871]	234	/* Leave critical section before stopping the service. */
	235	RTCritSectLeave(&g_csSignalHandler);
	236
	237	if ( g_Service.pDesc
	238	&& g_Service.pDesc->pfnStop)
	239	{
	240	VBClLogVerbose(2, "Notifying service to stop ...\n");
	241
	242	/* Signal the service to stop. */
	243	ASMAtomicWriteBool(&g_Service.fShutdown, true);
	244
	245	g_Service.pDesc->pfnStop();
	246
	247	VBClLogVerbose(2, "Service notified to stop, waiting on worker thread to stop ...\n");
	248	}
	249	}
	250	}
	251
	252	/**
	253	* Reset all standard termination signals to call our signal handler.
	254	*/
	255	static int vboxClientSignalHandlerInstall(void)
	256	{
[7313]	257	struct sigaction sigAction;
[7264]	258	sigAction.sa_handler = vboxClientSignalHandler;
	259	sigemptyset(&sigAction.sa_mask);
[7313]	260	sigAction.sa_flags = 0;
[7264]	261	sigaction(SIGHUP, &sigAction, NULL);
	262	sigaction(SIGINT, &sigAction, NULL);
	263	sigaction(SIGQUIT, &sigAction, NULL);
	264	sigaction(SIGPIPE, &sigAction, NULL);
	265	sigaction(SIGALRM, &sigAction, NULL);
	266	sigaction(SIGTERM, &sigAction, NULL);
	267	sigaction(SIGUSR1, &sigAction, NULL);
	268	sigaction(SIGUSR2, &sigAction, NULL);
[86871]	269
	270	return RTCritSectInit(&g_csSignalHandler);
[7264]	271	}
	272
	273	/**
[86871]	274	* Uninstalls a previously installed signal handler.
	275	*/
	276	static int vboxClientSignalHandlerUninstall(void)
	277	{
	278	signal(SIGTERM, SIG_DFL);
	279	#ifdef SIGBREAK
	280	signal(SIGBREAK, SIG_DFL);
	281	#endif
	282
	283	return RTCritSectDelete(&g_csSignalHandler);
	284	}
	285
	286	/**
[7264]	287	* Print out a usage message and exit with success.
	288	*/
[68562]	289	static void vboxClientUsage(const char *pcszFileName)
[7264]	290	{
[86871]	291	RTPrintf(VBOX_PRODUCT " VBoxClient "
	292	VBOX_VERSION_STRING "\n"
[96399]	293	"Copyright (C) 2005-" VBOX_C_YEAR " " VBOX_VENDOR "\n\n");
[86871]	294
[78162]	295	RTPrintf("Usage: %s "
	296	#ifdef VBOX_WITH_SHARED_CLIPBOARD
	297	"--clipboard\|"
	298	#endif
[39454]	299	#ifdef VBOX_WITH_DRAG_AND_DROP
	300	"--draganddrop\|"
	301	#endif
[86871]	302	#ifdef VBOX_WITH_GUEST_PROPS
[39454]	303	"--checkhostversion\|"
	304	#endif
[86871]	305	#ifdef VBOX_WITH_SEAMLESS
[80378]	306	"--seamless\|"
[86871]	307	#endif
	308	#ifdef VBOX_WITH_VMSVGA
[93371]	309	"--vmsvga\|"
	310	"--vmsvga-session"
[86871]	311	#endif
	312	"\n[-d\|--nodaemon]\n", pcszFileName);
	313	RTPrintf("\n");
[10651]	314	RTPrintf("Options:\n");
[78162]	315	#ifdef VBOX_WITH_SHARED_CLIPBOARD
[86883]	316	RTPrintf(" --clipboard starts the shared clipboard service\n");
[78162]	317	#endif
[39454]	318	#ifdef VBOX_WITH_DRAG_AND_DROP
[86883]	319	RTPrintf(" --draganddrop starts the drag and drop service\n");
[39454]	320	#endif
	321	#ifdef VBOX_WITH_GUEST_PROPS
[86883]	322	RTPrintf(" --checkhostversion starts the host version notifier service\n");
[39454]	323	#endif
[86871]	324	#ifdef VBOX_WITH_SEAMLESS
[86883]	325	RTPrintf(" --seamless starts the seamless windows service\n");
[86871]	326	#endif
	327	#ifdef VBOX_WITH_VMSVGA
[86883]	328	RTPrintf(" --vmsvga starts VMSVGA dynamic resizing for X11/Wayland guests\n");
[93385]	329	#ifdef RT_OS_LINUX
[93371]	330	RTPrintf(" --vmsvga-session starts Desktop Environment specific screen assistant for X11/Wayland guests\n"
	331	" (VMSVGA graphics adapter only)\n");
[93385]	332	#else
	333	RTPrintf(" --vmsvga-session an alias for --vmsvga\n");
[86871]	334	#endif
[94306]	335	RTPrintf(" --display starts VMSVGA dynamic resizing for legacy guests\n");
[93385]	336	#endif
[99585]	337	RTPrintf(" --session-type specifies the session type to use (auto, x11, wayland)\n");
[99658]	338	RTPrintf(" --session-detect detects and prints the current session type\n"
	339	" (exit code 0 if detection succeeded)\n");
[100246]	340	#ifdef VBOX_WITH_WAYLAND_ADDITIONS
	341	RTPrintf(" --wayland starts the shared clipboard and drag-and-drop services for Wayland\n");
	342	#endif
[86883]	343	RTPrintf(" -f, --foreground run in the foreground (no daemonizing)\n");
	344	RTPrintf(" -d, --nodaemon continues running as a system service\n");
	345	RTPrintf(" -h, --help shows this help text\n");
	346	RTPrintf(" -l, --logfile <path> enables logging to a file\n");
	347	RTPrintf(" -v, --verbose increases logging verbosity level\n");
	348	RTPrintf(" -V, --version shows version information\n");
[10651]	349	RTPrintf("\n");
[7264]	350	}
	351
	352	/**
[68562]	353	* Complains about seeing more than one service specification.
	354	*
	355	* @returns RTEXITCODE_SYNTAX.
	356	*/
	357	static int vbclSyntaxOnlyOneService(void)
	358	{
	359	RTMsgError("More than one service specified! Only one, please.");
	360	return RTEXITCODE_SYNTAX;
	361	}
	362
	363	/**
[86871]	364	* The service thread.
	365	*
	366	* @returns Whatever the worker function returns.
	367	* @param ThreadSelf My thread handle.
	368	* @param pvUser The service index.
	369	*/
	370	static DECLCALLBACK(int) vbclThread(RTTHREAD ThreadSelf, void *pvUser)
	371	{
	372	PVBCLSERVICESTATE pState = (PVBCLSERVICESTATE)pvUser;
	373	AssertPtrReturn(pState, VERR_INVALID_POINTER);
	374
	375	#ifndef RT_OS_WINDOWS
	376	/*
	377	* Block all signals for this thread. Only the main thread will handle signals.
	378	*/
	379	sigset_t signalMask;
	380	sigfillset(&signalMask);
	381	pthread_sigmask(SIG_BLOCK, &signalMask, NULL);
	382	#endif
	383
	384	AssertPtrReturn(pState->pDesc->pfnWorker, VERR_INVALID_POINTER);
	385	int rc = pState->pDesc->pfnWorker(&pState->fShutdown);
	386
	387	VBClLogVerbose(2, "Worker loop ended with %Rrc\n", rc);
	388
	389	ASMAtomicXchgBool(&pState->fShutdown, true);
	390	RTThreadUserSignal(ThreadSelf);
	391	return rc;
	392	}
	393
	394	/**
[98474]	395	* Wait for SIGUSR1 and re-exec.
	396	*/
	397	static void vbclHandleUpdateStarted(char *const argv[])
	398	{
	399	/* Context of parent process */
	400	sigset_t signalMask;
	401	int iSignal;
	402	int rc;
	403
	404	/* Release reference to guest driver. */
	405	VbglR3Term();
	406
	407	sigemptyset(&signalMask);
	408	sigaddset(&signalMask, SIGUSR1);
	409	rc = pthread_sigmask(SIG_BLOCK, &signalMask, NULL);
	410
	411	if (rc == 0)
	412	{
	413	LogRel(("%s: waiting for Guest Additions installation to be completed\n",
	414	g_Service.pDesc->pszDesc));
	415
	416	/* Wait for SIGUSR1. */
	417	rc = sigwait(&signalMask, &iSignal);
	418	if (rc == 0)
	419	{
	420	LogRel(("%s: Guest Additions installation to be completed, reloading service\n",
	421	g_Service.pDesc->pszDesc));
	422
	423	/* Release pidfile, otherwise new VBoxClient instance won't be able to quire it. */
	424	VBClShutdown(false);
	425
	426	rc = RTProcCreate(argv[0], argv, RTENV_DEFAULT,
	427	RTPROC_FLAGS_DETACHED \| RTPROC_FLAGS_SEARCH_PATH, NULL);
	428	if (RT_SUCCESS(rc))
	429	LogRel(("%s: service restarted\n", g_Service.pDesc->pszDesc));
	430	else
	431	LogRel(("%s: cannot replace running image with %s (%s), automatic service reloading has failed\n",
	432	g_Service.pDesc->pszDesc, argv[0], strerror(errno)));
	433	}
	434	else
	435	LogRel(("%s: cannot wait for signal (%s), automatic service reloading has failed\n",
	436	g_Service.pDesc->pszDesc, strerror(errno)));
	437	}
	438	else
	439	LogRel(("%s: failed to setup signal handler, automatic service reloading has failed\n",
	440	g_Service.pDesc->pszDesc));
	441
	442	exit(RT_BOOL(rc != 0));
	443	}
	444
	445	/**
	446	* Compose pidfile name.
	447	*
	448	* @returns IPRT status code.
	449	* @param szBuf Buffer to store pidfile name into.
	450	* @param cbBuf Size of buffer.
	451	* @param szTemplate Null-terminated string which contains pidfile name.
	452	* @param fParentProcess Whether pidfile path should be composed for
	453	* parent (control) process or for a child (actual
	454	* service) process.
	455	*/
	456	static int vbclGetPidfileName(char szBuf, size_t cbBuf, const char szTemplate,
	457	bool fParentProcess)
	458	{
	459	int rc;
	460	char pszActiveTTY[128];
	461	size_t cchRead;
	462
	463	RT_ZERO(pszActiveTTY);
	464
	465	AssertPtrReturn(szBuf, VERR_INVALID_PARAMETER);
	466	AssertReturn(cbBuf > 0, VERR_INVALID_PARAMETER);
	467	AssertPtrReturn(szTemplate, VERR_INVALID_PARAMETER);
	468
	469	rc = RTPathUserHome(szBuf, cbBuf);
	470	if (RT_FAILURE(rc))
	471	VBClLogFatalError("%s: getting home directory failed: %Rrc\n",
	472	g_Service.pDesc->pszDesc, rc);
	473
	474	if (RT_SUCCESS(rc))
	475	rc = RTPathAppend(szBuf, cbBuf, szTemplate);
	476
	477	#ifdef RT_OS_LINUX
	478	if (RT_SUCCESS(rc))
	479	rc = RTLinuxSysFsReadStrFile(pszActiveTTY, sizeof(pszActiveTTY) - 1 /* reserve last byte for string termination */,
	480	&cchRead, "class/tty/tty0/active");
	481	if (RT_SUCCESS(rc))
	482	{
	483	RTStrCat(szBuf, cbBuf, "-");
	484	RTStrCat(szBuf, cbBuf, pszActiveTTY);
	485	}
	486	else
	487	VBClLogInfo("%s: cannot detect currently active tty device, "
	488	"multiple service instances for a single user will not be allowed, rc=%Rrc",
	489	g_Service.pDesc->pszDesc, rc);
	490	#endif /* RT_OS_LINUX */
	491
	492	if (RT_SUCCESS(rc))
	493	RTStrCat(szBuf, cbBuf, fParentProcess ? "-control.pid" : "-service.pid");
	494
	495	if (RT_FAILURE(rc))
	496	VBClLogFatalError("%s: reating PID file path failed: %Rrc\n",
	497	g_Service.pDesc->pszDesc, rc);
	498
	499	return rc;
	500	}
	501
	502	/**
[7264]	503	* The main loop for the VBoxClient daemon.
	504	*/
[6202]	505	int main(int argc, char *argv[])
	506	{
[86871]	507	/* Note: No VBClLogXXX calls before actually creating the log. */
	508
	509	/* Initialize our runtime before all else. */
[68562]	510	int rc = RTR3InitExe(argc, &argv, 0);
[38636]	511	if (RT_FAILURE(rc))
	512	return RTMsgInitFailure(rc);
[68562]	513
[98474]	514	/* A flag which is returned to the parent process when Guest Additions update started. */
	515	bool fUpdateStarted = false;
	516
[68562]	517	/* Get our file name for usage info and hints. */
	518	const char *pcszFileName = RTPathFilename(argv[0]);
[50464]	519	if (!pcszFileName)
	520	pcszFileName = "VBoxClient";
[32832]	521
[81057]	522	/* Parse our option(s). */
	523	static const RTGETOPTDEF s_aOptions[] =
	524	{
[99585]	525	{ "--nodaemon", 'd', RTGETOPT_REQ_NOTHING },
	526	{ "--foreground", 'f', RTGETOPT_REQ_NOTHING },
	527	{ "--help", 'h', RTGETOPT_REQ_NOTHING },
	528	{ "--logfile", 'l', RTGETOPT_REQ_STRING },
	529	{ "--version", 'V', RTGETOPT_REQ_NOTHING },
	530	{ "--verbose", 'v', RTGETOPT_REQ_NOTHING },
[81057]	531
	532	/* Services */
[86871]	533	#ifdef VBOX_WITH_GUEST_PROPS
[99585]	534	{ "--checkhostversion", VBOXCLIENT_OPT_CHECKHOSTVERSION, RTGETOPT_REQ_NOTHING },
[86871]	535	#endif
[81057]	536	#ifdef VBOX_WITH_SHARED_CLIPBOARD
[99585]	537	{ "--clipboard", VBOXCLIENT_OPT_CLIPBOARD, RTGETOPT_REQ_NOTHING },
[81057]	538	#endif
	539	#ifdef VBOX_WITH_DRAG_AND_DROP
[99585]	540	{ "--draganddrop", VBOXCLIENT_OPT_DRAGANDDROP, RTGETOPT_REQ_NOTHING },
[81057]	541	#endif
[86871]	542	#ifdef VBOX_WITH_SEAMLESS
[99585]	543	{ "--seamless", VBOXCLIENT_OPT_SEAMLESS, RTGETOPT_REQ_NOTHING },
[86871]	544	#endif
	545	#ifdef VBOX_WITH_VMSVGA
[99585]	546	{ "--vmsvga", VBOXCLIENT_OPT_VMSVGA, RTGETOPT_REQ_NOTHING },
	547	{ "--vmsvga-session", VBOXCLIENT_OPT_VMSVGA_SESSION, RTGETOPT_REQ_NOTHING },
	548	{ "--display", VBOXCLIENT_OPT_DISPLAY, RTGETOPT_REQ_NOTHING },
[86871]	549	#endif
[99658]	550	{ "--session-detect", VBOXCLIENT_OPT_SESSION_DETECT, RTGETOPT_REQ_NOTHING },
[100246]	551	{ "--session-type", VBOXCLIENT_OPT_SESSION_TYPE, RTGETOPT_REQ_STRING },
	552	#ifdef VBOX_WITH_WAYLAND_ADDITIONS
	553	{ "--wayland", VBOXCLIENT_OPT_WAYLAND, RTGETOPT_REQ_NOTHING }
	554	#endif
[81057]	555	};
	556
	557	int ch;
	558	RTGETOPTUNION ValueUnion;
	559	RTGETOPTSTATE GetState;
	560	rc = RTGetOptInit(&GetState, argc, argv, s_aOptions, RT_ELEMENTS(s_aOptions), 0, 0 /* fFlags */);
[86871]	561	if (RT_FAILURE(rc))
	562	return RTMsgErrorExitFailure("Failed to parse command line options, rc=%Rrc\n", rc);
	563
[81057]	564	AssertRC(rc);
	565
[68562]	566	bool fDaemonise = true;
[81057]	567	bool fRespawn = true;
	568
	569	while ((ch = RTGetOpt(&GetState, &ValueUnion)) != 0)
[6202]	570	{
[81057]	571	/* For options that require an argument, ValueUnion has received the value. */
	572	switch (ch)
[50464]	573	{
[81057]	574	case 'd':
	575	{
	576	fDaemonise = false;
	577	break;
	578	}
	579
	580	case 'h':
	581	{
	582	vboxClientUsage(pcszFileName);
	583	return RTEXITCODE_SUCCESS;
	584	}
	585
	586	case 'f':
	587	{
	588	fDaemonise = false;
	589	fRespawn = false;
	590	break;
	591	}
	592
	593	case 'l':
	594	{
	595	rc = RTStrCopy(g_szLogFile, sizeof(g_szLogFile), ValueUnion.psz);
	596	if (RT_FAILURE(rc))
[86871]	597	return RTMsgErrorExitFailure("Unable to set log file path, rc=%Rrc\n", rc);
[81057]	598	break;
	599	}
	600
	601	case 'n':
	602	{
[86871]	603	fRespawn = false;
[81057]	604	break;
	605	}
	606
	607	case 'v':
	608	{
	609	g_cVerbosity++;
	610	break;
	611	}
	612
	613	case 'V':
	614	{
	615	RTPrintf("%sr%s\n", RTBldCfgVersion(), RTBldCfgRevisionStr());
	616	return RTEXITCODE_SUCCESS;
	617	}
	618
	619	/* Services */
[86871]	620	#ifdef VBOX_WITH_GUEST_PROPS
[83715]	621	case VBOXCLIENT_OPT_CHECKHOSTVERSION:
	622	{
[86871]	623	if (g_Service.pDesc)
[83715]	624	return vbclSyntaxOnlyOneService();
[86871]	625	g_Service.pDesc = &g_SvcHostVersion;
[83715]	626	break;
	627	}
[86871]	628	#endif
[78162]	629	#ifdef VBOX_WITH_SHARED_CLIPBOARD
[81057]	630	case VBOXCLIENT_OPT_CLIPBOARD:
	631	{
[86871]	632	if (g_Service.pDesc)
[81057]	633	return vbclSyntaxOnlyOneService();
[86871]	634	g_Service.pDesc = &g_SvcClipboard;
[81057]	635	break;
	636	}
[78162]	637	#endif
[39454]	638	#ifdef VBOX_WITH_DRAG_AND_DROP
[81057]	639	case VBOXCLIENT_OPT_DRAGANDDROP:
	640	{
[86871]	641	if (g_Service.pDesc)
[81057]	642	return vbclSyntaxOnlyOneService();
[86871]	643	g_Service.pDesc = &g_SvcDragAndDrop;
[70126]	644	break;
[81057]	645	}
	646	#endif
[86871]	647	#ifdef VBOX_WITH_SEAMLESS
[81057]	648	case VBOXCLIENT_OPT_SEAMLESS:
	649	{
[86871]	650	if (g_Service.pDesc)
[81057]	651	return vbclSyntaxOnlyOneService();
[86871]	652	g_Service.pDesc = &g_SvcSeamless;
[81057]	653	break;
	654	}
[86871]	655	#endif
	656	#ifdef VBOX_WITH_VMSVGA
[81057]	657	case VBOXCLIENT_OPT_VMSVGA:
	658	{
[86871]	659	if (g_Service.pDesc)
[81057]	660	return vbclSyntaxOnlyOneService();
[86871]	661	g_Service.pDesc = &g_SvcDisplaySVGA;
[81057]	662	break;
	663	}
[93385]	664
[93371]	665	case VBOXCLIENT_OPT_VMSVGA_SESSION:
	666	{
	667	if (g_Service.pDesc)
	668	return vbclSyntaxOnlyOneService();
[93385]	669	# ifdef RT_OS_LINUX
[93371]	670	g_Service.pDesc = &g_SvcDisplaySVGASession;
[93385]	671	# else
	672	g_Service.pDesc = &g_SvcDisplaySVGA;
	673	# endif
[93371]	674	break;
	675	}
[94306]	676
	677	case VBOXCLIENT_OPT_DISPLAY:
	678	{
	679	if (g_Service.pDesc)
	680	return vbclSyntaxOnlyOneService();
	681	g_Service.pDesc = &g_SvcDisplayLegacy;
	682	break;
	683	}
[86871]	684	#endif
[99658]	685	case VBOXCLIENT_OPT_SESSION_DETECT:
	686	{
	687	rc = VBClLogCreateEx("" /* No file logging /, false / No header */);
	688	if (RT_SUCCESS(rc))
	689	{
[99689]	690	/* Make sure that we increase the verbosity (if needed), to gain some more insights
	691	* when detecting the display server. */
	692	rc = VBClLogModify("stdout", g_cVerbosity);
	693	if (RT_SUCCESS(rc))
	694	{
	695	VBGHDISPLAYSERVERTYPE const enmType = VBGHDisplayServerTypeDetect();
	696	VBClLogInfo("Detected session: %s\n", VBGHDisplayServerTypeToStr(enmType));
	697	return enmType != VBGHDISPLAYSERVERTYPE_NONE ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
	698	}
[99658]	699	}
	700
	701	return RTEXITCODE_FAILURE;
	702	}
	703
[99585]	704	case VBOXCLIENT_OPT_SESSION_TYPE:
	705	{
	706	if (!RTStrICmp(ValueUnion.psz, "x11"))
[99620]	707	g_enmDisplayServerType = VBGHDISPLAYSERVERTYPE_X11;
[99585]	708	else if (!RTStrICmp(ValueUnion.psz, "wayland"))
[100063]	709	g_enmDisplayServerType = VBGHDISPLAYSERVERTYPE_PURE_WAYLAND;
[99585]	710	else if (!RTStrICmp(ValueUnion.psz, "none"))
[99620]	711	g_enmDisplayServerType = VBGHDISPLAYSERVERTYPE_NONE;
[99585]	712	else if (!RTStrICmp(ValueUnion.psz, "auto"))
[99620]	713	g_enmDisplayServerType = VBGHDISPLAYSERVERTYPE_AUTO;
[99585]	714	else
	715	{
	716	RTMsgError("Session type \"%s\" is invalid; defaulting to \"auto\" instead.\n", ValueUnion.psz);
[99620]	717	g_enmDisplayServerType = VBGHDISPLAYSERVERTYPE_AUTO;
[99585]	718	}
	719	break;
	720	}
[100246]	721	#ifdef VBOX_WITH_WAYLAND_ADDITIONS
	722	case VBOXCLIENT_OPT_WAYLAND:
	723	{
	724	if (g_Service.pDesc)
	725	return vbclSyntaxOnlyOneService();
	726	g_Service.pDesc = &g_SvcWayland;
	727	break;
	728	}
	729	#endif
[99585]	730
[86871]	731	case VINF_GETOPT_NOT_OPTION:
	732	break;
[81057]	733
	734	case VERR_GETOPT_UNKNOWN_OPTION:
[86871]	735	RT_FALL_THROUGH();
	736	default:
[81057]	737	{
[86871]	738	if ( g_Service.pDesc
	739	&& g_Service.pDesc->pfnOption)
	740	{
	741	rc = g_Service.pDesc->pfnOption(NULL, argc, argv, &GetState.iNext);
	742	}
	743	else /* No service specified yet. */
	744	rc = VERR_NOT_FOUND;
[81057]	745
[86871]	746	if (RT_FAILURE(rc))
	747	{
	748	RTMsgError("unrecognized option '%s'", ValueUnion.psz);
	749	RTMsgInfo("Try '%s --help' for more information", pcszFileName);
	750	return RTEXITCODE_SYNTAX;
	751	}
[81057]	752	break;
[86871]	753	}
[81057]	754
	755	} /* switch */
	756	} /* while RTGetOpt */
	757
[86871]	758	if (!g_Service.pDesc)
	759	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "No service specified. Quitting because nothing to do!");
[25942]	760
[81038]	761	/* Initialize VbglR3 before we do anything else with the logger. */
	762	rc = VbglR3InitUser();
	763	if (RT_FAILURE(rc))
[86871]	764	return RTMsgErrorExitFailure("VbglR3InitUser failed: %Rrc", rc);
[81038]	765
[93371]	766	rc = VBClLogCreate(g_szLogFile[0] ? g_szLogFile : "");
[81052]	767	if (RT_FAILURE(rc))
[99658]	768	return RTEXITCODE_FAILURE; /* Error message already printed in VBClLogCreateEx(). */
[81052]	769
[99689]	770	/* If the user is running in "no daemon" mode, send critical logging to stdout as well. */
	771	rc = VBClLogModify(fDaemonise ? "" : "stdout", g_cVerbosity);
	772	if (RT_FAILURE(rc))
	773	return RTEXITCODE_FAILURE; /* Error message already printed in VBClLogModify(). */
[81038]	774
[99585]	775	VBClLogInfo("VBoxClient %s r%s started. Verbose level = %d\n",
	776	RTBldCfgVersion(), RTBldCfgRevisionStr(), g_cVerbosity);
	777
	778	/* Try to detect the current session type early on, if needed. */
[99620]	779	if (g_enmDisplayServerType == VBGHDISPLAYSERVERTYPE_AUTO)
[99585]	780	{
[99620]	781	g_enmDisplayServerType = VBGHDisplayServerTypeDetect();
[99585]	782	}
	783	else
[99620]	784	VBClLogInfo("Session type was manually set to: %s\n", VBGHDisplayServerTypeToStr(g_enmDisplayServerType));
[99585]	785
[99620]	786	VBClLogInfo("Session type is: %s\n", VBGHDisplayServerTypeToStr(g_enmDisplayServerType));
[99585]	787
[86871]	788	VBClLogInfo("Service: %s\n", g_Service.pDesc->pszDesc);
	789
[52577]	790	rc = RTCritSectInit(&g_critSect);
[50281]	791	if (RT_FAILURE(rc))
[86871]	792	VBClLogFatalError("Initializing critical section failed: %Rrc\n", rc);
[98474]	793	if (g_Service.pDesc->pszPidFilePathTemplate)
[58993]	794	{
[98474]	795	/* Get pidfile name for parent (control) process. */
	796	rc = vbclGetPidfileName(g_szControlPidFile, sizeof(g_szControlPidFile), g_Service.pDesc->pszPidFilePathTemplate, true);
[58993]	797	if (RT_FAILURE(rc))
[98474]	798	return RTEXITCODE_FAILURE;
	799
	800	/* Get pidfile name for service process. */
	801	rc = vbclGetPidfileName(g_szPidFile, sizeof(g_szPidFile), g_Service.pDesc->pszPidFilePathTemplate, false);
[58993]	802	if (RT_FAILURE(rc))
[98474]	803	return RTEXITCODE_FAILURE;
[93371]	804	}
	805
	806	if (fDaemonise)
[98474]	807	{
[99660]	808	VBClLogInfo("Daemonizing service ...\n");
[98474]	809	rc = VbglR3DaemonizeEx(false /* fNoChDir /, false / fNoClose */, fRespawn, &g_cRespawn,
	810	true /* fReturnOnUpdate */, &fUpdateStarted, g_szControlPidFile, &g_hControlPidFile);
[99660]	811	if (RT_SUCCESS(rc))
	812	{
	813	g_fDaemonized = true;
	814
	815	if (fUpdateStarted) /* This combination only works in context of parent process. */
	816	vbclHandleUpdateStarted(argv);
	817	}
	818	else
	819	return RTMsgErrorExitFailure("Daemonizing service failed: %Rrc\n", rc);
[98474]	820	}
	821
[93371]	822	if (g_szPidFile[0])
	823	{
	824	rc = VbglR3PidFile(g_szPidFile, &g_hPidFile);
[58993]	825	if (rc == VERR_FILE_LOCK_VIOLATION) /* Already running. */
[98474]	826	{
	827	VBClLogInfo("%s: service already running, exitting\n",
	828	g_Service.pDesc->pszDesc);
[60980]	829	return RTEXITCODE_SUCCESS;
[98474]	830	}
[58993]	831	if (RT_FAILURE(rc))
[98474]	832	{
	833	VBClLogFatalError("Creating PID file %s failed: %Rrc\n", g_szPidFile, rc);
	834	return RTEXITCODE_FAILURE;
	835	}
[58993]	836	}
[86871]	837
[99620]	838	if (g_enmDisplayServerType == VBGHDISPLAYSERVERTYPE_X11)
[99585]	839	{
	840	/* This should never be called twice in one process - in fact one Display
	841	* object should probably never be used from multiple threads anyway. */
	842	if (!XInitThreads())
	843	return RTMsgErrorExitFailure("Failed to initialize X11 threads\n");
	844	/* Set an X11 error handler, so that we don't die when we get unavoidable
	845	* errors. */
	846	XSetErrorHandler(vboxClientXLibErrorHandler);
	847	/* Set an X11 I/O error handler, so that we can shutdown properly on
	848	* fatal errors. */
	849	XSetIOErrorHandler(vboxClientXLibIOErrorHandler);
	850	}
[86871]	851
	852	bool fSignalHandlerInstalled = false;
[60980]	853	if (RT_SUCCESS(rc))
	854	{
[86871]	855	rc = vboxClientSignalHandlerInstall();
	856	if (RT_SUCCESS(rc))
	857	fSignalHandlerInstalled = true;
	858	}
	859
	860	if ( RT_SUCCESS(rc)
	861	&& g_Service.pDesc->pfnInit)
	862	{
	863	VBClLogInfo("Initializing service ...\n");
	864	rc = g_Service.pDesc->pfnInit();
	865	}
	866
	867	if (RT_SUCCESS(rc))
	868	{
	869	VBClLogInfo("Creating worker thread ...\n");
	870	rc = RTThreadCreate(&g_Service.Thread, vbclThread, (void *)&g_Service, 0,
	871	RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, g_Service.pDesc->pszName);
[60980]	872	if (RT_FAILURE(rc))
[86871]	873	{
	874	VBClLogError("Creating worker thread failed, rc=%Rrc\n", rc);
	875	}
	876	else
	877	{
	878	g_Service.fStarted = true;
	879
	880	/* Wait for the thread to initialize. */
	881	/** @todo There is a race between waiting and checking
	882	* the fShutdown flag of a thread here and processing
	883	* the thread's actual worker loop. If the thread decides
	884	* to exit the loop before we skipped the fShutdown check
	885	* below the service will fail to start! */
	886	/** @todo This presumably means either a one-shot service or that
	887	* something has gone wrong. In the second case treating it as failure
	888	* to start is probably right, so we need a way to signal the first
	889	* rather than leaving the idle thread hanging around. A flag in the
	890	* service description? */
	891	RTThreadUserWait(g_Service.Thread, RT_MS_1MIN);
	892	if (g_Service.fShutdown)
	893	{
	894	VBClLogError("Service failed to start!\n");
	895	rc = VERR_GENERAL_FAILURE;
	896	}
	897	else
	898	{
	899	VBClLogInfo("Service started\n");
	900
	901	int rcThread;
	902	rc = RTThreadWait(g_Service.Thread, RT_INDEFINITE_WAIT, &rcThread);
	903	if (RT_SUCCESS(rc))
	904	rc = rcThread;
	905
	906	if (RT_FAILURE(rc))
	907	VBClLogError("Waiting on worker thread to stop failed, rc=%Rrc\n", rc);
	908
	909	if (g_Service.pDesc->pfnTerm)
	910	{
	911	VBClLogInfo("Terminating service\n");
	912
	913	int rc2 = g_Service.pDesc->pfnTerm();
	914	if (RT_SUCCESS(rc))
	915	rc = rc2;
	916
	917	if (RT_SUCCESS(rc))
	918	{
	919	VBClLogInfo("Service terminated\n");
	920	}
	921	else
	922	VBClLogError("Service failed to terminate, rc=%Rrc\n", rc);
	923	}
	924	}
	925	}
[60980]	926	}
[86871]	927
	928	if (RT_FAILURE(rc))
	929	{
	930	if (rc == VERR_NOT_AVAILABLE)
	931	VBClLogInfo("Service is not availabe, skipping\n");
	932	else if (rc == VERR_NOT_SUPPORTED)
	933	VBClLogInfo("Service is not supported on this platform, skipping\n");
	934	else
	935	VBClLogError("Service ended with error %Rrc\n", rc);
	936	}
[60980]	937	else
[86871]	938	VBClLogVerbose(2, "Service ended\n");
	939
	940	if (fSignalHandlerInstalled)
[60980]	941	{
[86871]	942	int rc2 = vboxClientSignalHandlerUninstall();
	943	AssertRC(rc2);
[60980]	944	}
[86871]	945
	946	VBClShutdown(false /fExit/);
	947
	948	/** @todo r=andy Should we return an appropriate exit code if the service failed to init?
	949	* Must be tested carefully with our init scripts first. */
[98474]	950	return g_fProcessReloadRequested ? VBGLR3EXITCODERELOAD : RTEXITCODE_SUCCESS;
[6202]	951	}
[86871]	952

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source: vbox/trunk/src/VBox/Additions/x11/VBoxClient/main.cpp

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