server.cpp@ 78273

Last change on this file since 78273 was 76592, checked in by vboxsync, 6 years ago
Main: Don't use Logging.h.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 31.0 KB

Line
1	/* $Id: server.cpp 76592 2019-01-01 20:13:07Z vboxsync $ */
2	/** @file
3	* XPCOM server process (VBoxSVC) start point.
4	*/
5
6	/*
7	* Copyright (C) 2004-2019 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	#define LOG_GROUP LOG_GROUP_MAIN_VBOXSVC
19	#include <ipcIService.h>
20	#include <ipcCID.h>
21
22	#include <nsIComponentRegistrar.h>
23
24	#include <nsGenericFactory.h>
25
26	#include "prio.h"
27	#include "prproces.h"
28
29	#include "server.h"
30
31	#include "LoggingNew.h"
32
33	#include <VBox/param.h>
34
35	#include <iprt/buildconfig.h>
36	#include <iprt/initterm.h>
37	#include <iprt/critsect.h>
38	#include <iprt/getopt.h>
39	#include <iprt/message.h>
40	#include <iprt/string.h>
41	#include <iprt/stream.h>
42	#include <iprt/path.h>
43	#include <iprt/timer.h>
44	#include <iprt/env.h>
45
46	#include <signal.h> // for the signal handler
47	#include <stdlib.h>
48	#include <unistd.h>
49	#include <errno.h>
50	#include <fcntl.h>
51	#include <sys/stat.h>
52	#include <sys/resource.h>
53
54	/////////////////////////////////////////////////////////////////////////////
55	// VirtualBox component instantiation
56	/////////////////////////////////////////////////////////////////////////////
57
58	#include <nsIGenericFactory.h>
59	#include <VBox/com/VirtualBox.h>
60
61	#include "VBox/com/NativeEventQueue.h"
62
63	#include "ApplianceImpl.h"
64	#include "AudioAdapterImpl.h"
65	#include "BandwidthControlImpl.h"
66	#include "BandwidthGroupImpl.h"
67	#include "NetworkServiceRunner.h"
68	#include "DHCPServerImpl.h"
69	#include "GuestOSTypeImpl.h"
70	#include "HostImpl.h"
71	#include "HostNetworkInterfaceImpl.h"
72	#include "MachineImpl.h"
73	#include "MediumFormatImpl.h"
74	#include "MediumImpl.h"
75	#include "NATEngineImpl.h"
76	#include "NetworkAdapterImpl.h"
77	#include "ParallelPortImpl.h"
78	#include "ProgressProxyImpl.h"
79	#include "SerialPortImpl.h"
80	#include "SharedFolderImpl.h"
81	#include "SnapshotImpl.h"
82	#include "StorageControllerImpl.h"
83	#include "SystemPropertiesImpl.h"
84	#include "USBControllerImpl.h"
85	#include "USBDeviceFiltersImpl.h"
86	#include "VFSExplorerImpl.h"
87	#include "VirtualBoxImpl.h"
88	#include "VRDEServerImpl.h"
89	#ifdef VBOX_WITH_USB
90	# include "HostUSBDeviceImpl.h"
91	# include "USBDeviceFilterImpl.h"
92	# include "USBDeviceImpl.h"
93	#endif
94	#ifdef VBOX_WITH_EXTPACK
95	# include "ExtPackManagerImpl.h"
96	#endif
97	# include "NATNetworkImpl.h"
98
99	// This needs to stay - it is needed by the service registration below, and
100	// is defined in the automatically generated VirtualBoxWrap.cpp
101	extern nsIClassInfo *NS_CLASSINFO_NAME(VirtualBoxWrap);
102	NS_DECL_CI_INTERFACE_GETTER(VirtualBoxWrap)
103
104	////////////////////////////////////////////////////////////////////////////////
105
106	static bool gAutoShutdown = false;
107	/** Delay before shutting down the VirtualBox server after the last
108	* VirtualBox instance is released, in ms */
109	static uint32_t gShutdownDelayMs = 5000;
110
111	static com::NativeEventQueue *gEventQ = NULL;
112	static PRBool volatile gKeepRunning = PR_TRUE;
113	static PRBool volatile gAllowSigUsrQuit = PR_TRUE;
114
115	/////////////////////////////////////////////////////////////////////////////
116
117	/**
118	* VirtualBox class factory that destroys the created instance right after
119	* the last reference to it is released by the client, and recreates it again
120	* when necessary (so VirtualBox acts like a singleton object).
121	*/
122	class VirtualBoxClassFactory : public VirtualBox
123	{
124	public:
125
126	virtual ~VirtualBoxClassFactory()
127	{
128	LogFlowFunc(("Deleting VirtualBox...\n"));
129
130	FinalRelease();
131	sInstance = NULL;
132
133	LogFlowFunc(("VirtualBox object deleted.\n"));
134	RTPrintf("Informational: VirtualBox object deleted.\n");
135	}
136
137	NS_IMETHOD_(nsrefcnt) Release()
138	{
139	/* we overload Release() to guarantee the VirtualBox destructor is
140	* always called on the main thread */
141
142	nsrefcnt count = VirtualBox::Release();
143
144	if (count == 1)
145	{
146	/* the last reference held by clients is being released
147	* (see GetInstance()) */
148
149	bool onMainThread = RTThreadIsMain(RTThreadSelf());
150	PRBool timerStarted = PR_FALSE;
151
152	/* sTimer is null if this call originates from FactoryDestructor()*/
153	if (sTimer != NULL)
154	{
155	LogFlowFunc(("Last VirtualBox instance was released.\n"));
156	LogFlowFunc(("Scheduling server shutdown in %u ms...\n",
157	gShutdownDelayMs));
158
159	/* make sure the previous timer (if any) is stopped;
160	* otherwise RTTimerStart() will definitely fail. */
161	RTTimerLRStop(sTimer);
162
163	int vrc = RTTimerLRStart(sTimer, gShutdownDelayMs * RT_NS_1MS_64);
164	AssertRC(vrc);
165	timerStarted = !!(SUCCEEDED(vrc));
166	}
167	else
168	{
169	LogFlowFunc(("Last VirtualBox instance was released "
170	"on XPCOM shutdown.\n"));
171	Assert(onMainThread);
172	}
173
174	gAllowSigUsrQuit = PR_TRUE;
175
176	if (!timerStarted)
177	{
178	if (!onMainThread)
179	{
180	/* Failed to start the timer, post the shutdown event
181	* manually if not on the main thread already. */
182	ShutdownTimer(NULL, NULL, 0);
183	}
184	else
185	{
186	/* Here we come if:
187	*
188	* a) gEventQ is 0 which means either FactoryDestructor() is called
189	* or the IPC/DCONNECT shutdown sequence is initiated by the
190	* XPCOM shutdown routine (NS_ShutdownXPCOM()), which always
191	* happens on the main thread.
192	*
193	* b) gEventQ has reported we're on the main thread. This means
194	* that DestructEventHandler() has been called, but another
195	* client was faster and requested VirtualBox again.
196	*
197	* In either case, there is nothing to do.
198	*
199	* Note: case b) is actually no more valid since we don't
200	* call Release() from DestructEventHandler() in this case
201	* any more. Thus, we assert below.
202	*/
203
204	Assert(!gEventQ);
205	}
206	}
207	}
208
209	return count;
210	}
211
212	class MaybeQuitEvent : public NativeEvent
213	{
214	public:
215	MaybeQuitEvent() :
216	m_fSignal(false)
217	{
218	}
219
220	MaybeQuitEvent(bool fSignal) :
221	m_fSignal(fSignal)
222	{
223	}
224
225	private:
226	/* called on the main thread */
227	void *handler()
228	{
229	LogFlowFuncEnter();
230
231	Assert(RTCritSectIsInitialized(&sLock));
232
233	/* stop accepting GetInstance() requests on other threads during
234	* possible destruction */
235	RTCritSectEnter(&sLock);
236
237	nsrefcnt count = 1;
238
239	/* sInstance is NULL here if it was deleted immediately after
240	* creation due to initialization error. See GetInstance(). */
241	if (sInstance != NULL)
242	{
243	/* Safe way to get current refcount is by first increasing and
244	* then decreasing. Keep in mind that the Release is overloaded
245	* (see VirtualBoxClassFactory::Release) and will start the
246	* timer again if the returned count is 1. It won't do harm,
247	* but also serves no purpose, so stop it ASAP. */
248	sInstance->AddRef();
249	count = sInstance->Release();
250	if (count == 1)
251	{
252	RTTimerLRStop(sTimer);
253	/* Release the guard reference added in GetInstance() */
254	sInstance->Release();
255	}
256	}
257
258	if (count == 1)
259	{
260	if (gAutoShutdown \|\| m_fSignal)
261	{
262	Assert(sInstance == NULL);
263	LogFlowFunc(("Terminating the server process...\n"));
264	/* make it leave the event loop */
265	gKeepRunning = PR_FALSE;
266	}
267	else
268	LogFlowFunc(("No automatic shutdown.\n"));
269	}
270	else
271	{
272	/* This condition is quite rare: a new client happened to
273	* connect after this event has been posted to the main queue
274	* but before it started to process it. */
275	LogRel(("Destruction is canceled (refcnt=%d).\n", count));
276	}
277
278	RTCritSectLeave(&sLock);
279
280	LogFlowFuncLeave();
281	return NULL;
282	}
283
284	bool m_fSignal;
285	};
286
287	static DECLCALLBACK(void) ShutdownTimer(RTTIMERLR hTimerLR, void pvUser, uint64_t /iTick*/)
288	{
289	NOREF(hTimerLR);
290	NOREF(pvUser);
291
292	/* A "too late" event is theoretically possible if somebody
293	* manually ended the server after a destruction has been scheduled
294	* and this method was so lucky that it got a chance to run before
295	* the timer was killed. */
296	com::NativeEventQueue *q = gEventQ;
297	AssertReturnVoid(q);
298
299	/* post a quit event to the main queue */
300	MaybeQuitEvent ev = new MaybeQuitEvent(false / fSignal */);
301	if (!q->postEvent(ev))
302	delete ev;
303
304	/* A failure above means we've been already stopped (for example
305	* by Ctrl-C). FactoryDestructor() (NS_ShutdownXPCOM())
306	* will do the job. Nothing to do. */
307	}
308
309	static NS_IMETHODIMP FactoryConstructor()
310	{
311	LogFlowFunc(("\n"));
312
313	/* create a critsect to protect object construction */
314	if (RT_FAILURE(RTCritSectInit(&sLock)))
315	return NS_ERROR_OUT_OF_MEMORY;
316
317	int vrc = RTTimerLRCreateEx(&sTimer, 0, 0, ShutdownTimer, NULL);
318	if (RT_FAILURE(vrc))
319	{
320	LogFlowFunc(("Failed to create a timer! (vrc=%Rrc)\n", vrc));
321	return NS_ERROR_FAILURE;
322	}
323
324	return NS_OK;
325	}
326
327	static NS_IMETHODIMP FactoryDestructor()
328	{
329	LogFlowFunc(("\n"));
330
331	RTTimerLRDestroy(sTimer);
332	sTimer = NULL;
333
334	if (sInstance != NULL)
335	{
336	/* Either posting a destruction event failed for some reason (most
337	* likely, the quit event has been received before the last release),
338	* or the client has terminated abnormally w/o releasing its
339	* VirtualBox instance (so NS_ShutdownXPCOM() is doing a cleanup).
340	* Release the guard reference we added in GetInstance(). */
341	sInstance->Release();
342	}
343
344	/* Destroy lock after releasing the VirtualBox instance, otherwise
345	* there are races with cleanup. */
346	RTCritSectDelete(&sLock);
347
348	return NS_OK;
349	}
350
351	static nsresult GetInstance(VirtualBox **inst)
352	{
353	LogFlowFunc(("Getting VirtualBox object...\n"));
354
355	RTCritSectEnter(&sLock);
356
357	if (!gKeepRunning)
358	{
359	LogFlowFunc(("Process termination requested first. Refusing.\n"));
360
361	RTCritSectLeave(&sLock);
362
363	/* this rv is what CreateInstance() on the client side returns
364	* when the server process stops accepting events. Do the same
365	* here. The client wrapper should attempt to start a new process in
366	* response to a failure from us. */
367	return NS_ERROR_ABORT;
368	}
369
370	nsresult rv = NS_OK;
371
372	if (sInstance == NULL)
373	{
374	LogFlowFunc(("Creating new VirtualBox object...\n"));
375	sInstance = new VirtualBoxClassFactory();
376	if (sInstance != NULL)
377	{
378	/* make an extra AddRef to take the full control
379	* on the VirtualBox destruction (see FinalRelease()) */
380	sInstance->AddRef();
381
382	sInstance->AddRef(); /* protect FinalConstruct() */
383	rv = sInstance->FinalConstruct();
384	RTPrintf("Informational: VirtualBox object created (rc=%Rhrc).\n", rv);
385	if (NS_FAILED(rv))
386	{
387	/* On failure diring VirtualBox initialization, delete it
388	* immediately on the current thread by releasing all
389	* references in order to properly schedule the server
390	* shutdown. Since the object is fully deleted here, there
391	* is a chance to fix the error and request a new
392	* instantiation before the server terminates. However,
393	* the main reason to maintain the shutdown delay on
394	* failure is to let the front-end completely fetch error
395	* info from a server-side IVirtualBoxErrorInfo object. */
396	sInstance->Release();
397	sInstance->Release();
398	Assert(sInstance == NULL);
399	}
400	else
401	{
402	/* On success, make sure the previous timer is stopped to
403	* cancel a scheduled server termination (if any). */
404	gAllowSigUsrQuit = PR_FALSE;
405	RTTimerLRStop(sTimer);
406	}
407	}
408	else
409	{
410	rv = NS_ERROR_OUT_OF_MEMORY;
411	}
412	}
413	else
414	{
415	LogFlowFunc(("Using existing VirtualBox object...\n"));
416	nsrefcnt count = sInstance->AddRef();
417	Assert(count > 1);
418
419	if (count >= 2)
420	{
421	LogFlowFunc(("Another client has requested a reference to VirtualBox, canceling destruction...\n"));
422
423	/* make sure the previous timer is stopped */
424	gAllowSigUsrQuit = PR_FALSE;
425	RTTimerLRStop(sTimer);
426	}
427	}
428
429	*inst = sInstance;
430
431	RTCritSectLeave(&sLock);
432
433	return rv;
434	}
435
436	private:
437
438	/* Don't be confused that sInstance is of the *ClassFactory type. This is
439	* actually a singleton instance (*ClassFactory inherits the singleton
440	* class; we combined them just for "simplicity" and used "static" for
441	* factory methods. *ClassFactory here is necessary for a couple of extra
442	* methods. */
443
444	static VirtualBoxClassFactory *sInstance;
445	static RTCRITSECT sLock;
446
447	static RTTIMERLR sTimer;
448	};
449
450	VirtualBoxClassFactory *VirtualBoxClassFactory::sInstance = NULL;
451	RTCRITSECT VirtualBoxClassFactory::sLock;
452
453	RTTIMERLR VirtualBoxClassFactory::sTimer = NIL_RTTIMERLR;
454
455	NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR_WITH_RC(VirtualBox, VirtualBoxClassFactory::GetInstance)
456
457	////////////////////////////////////////////////////////////////////////////////
458
459	typedef NSFactoryDestructorProcPtr NSFactoryConstructorProcPtr;
460
461	/**
462	* Enhanced module component information structure.
463	*
464	* nsModuleComponentInfo lacks the factory construction callback, here we add
465	* it. This callback is called straight after a nsGenericFactory instance is
466	* successfully created in RegisterSelfComponents.
467	*/
468	struct nsModuleComponentInfoPlusFactoryConstructor
469	{
470	/** standard module component information */
471	const nsModuleComponentInfo *mpModuleComponentInfo;
472	/** (optional) Factory Construction Callback */
473	NSFactoryConstructorProcPtr mFactoryConstructor;
474	};
475
476	/////////////////////////////////////////////////////////////////////////////
477
478	/**
479	* Helper function to register self components upon start-up
480	* of the out-of-proc server.
481	*/
482	static nsresult
483	RegisterSelfComponents(nsIComponentRegistrar *registrar,
484	const nsModuleComponentInfoPlusFactoryConstructor *aComponents,
485	PRUint32 count)
486	{
487	nsresult rc = NS_OK;
488	const nsModuleComponentInfoPlusFactoryConstructor *info = aComponents;
489	for (PRUint32 i = 0; i < count && NS_SUCCEEDED(rc); i++, info++)
490	{
491	/* skip components w/o a constructor */
492	if (!info->mpModuleComponentInfo->mConstructor)
493	continue;
494	/* create a new generic factory for a component and register it */
495	nsIGenericFactory *factory;
496	rc = NS_NewGenericFactory(&factory, info->mpModuleComponentInfo);
497	if (NS_SUCCEEDED(rc) && info->mFactoryConstructor)
498	{
499	rc = info->mFactoryConstructor();
500	if (NS_FAILED(rc))
501	NS_RELEASE(factory);
502	}
503	if (NS_SUCCEEDED(rc))
504	{
505	rc = registrar->RegisterFactory(info->mpModuleComponentInfo->mCID,
506	info->mpModuleComponentInfo->mDescription,
507	info->mpModuleComponentInfo->mContractID,
508	factory);
509	NS_RELEASE(factory);
510	}
511	}
512	return rc;
513	}
514
515	/////////////////////////////////////////////////////////////////////////////
516
517	static ipcIService *gIpcServ = nsnull;
518	static const char *g_pszPidFile = NULL;
519
520	class ForceQuitEvent : public NativeEvent
521	{
522	void *handler()
523	{
524	LogFlowFunc(("\n"));
525
526	gKeepRunning = PR_FALSE;
527
528	if (g_pszPidFile)
529	RTFileDelete(g_pszPidFile);
530
531	return NULL;
532	}
533	};
534
535	static void signal_handler(int sig)
536	{
537	com::NativeEventQueue *q = gEventQ;
538	if (q && gKeepRunning)
539	{
540	if (sig == SIGUSR1)
541	{
542	if (gAllowSigUsrQuit)
543	{
544	/* terminate the server process if it is idle */
545	VirtualBoxClassFactory::MaybeQuitEvent ev = new VirtualBoxClassFactory::MaybeQuitEvent(true / fSignal */);
546	if (!q->postEvent(ev))
547	delete ev;
548	}
549	/* else do nothing */
550	}
551	else
552	{
553	/* post a force quit event to the queue */
554	ForceQuitEvent *ev = new ForceQuitEvent();
555	if (!q->postEvent(ev))
556	delete ev;
557	}
558	}
559	}
560
561	static nsresult vboxsvcSpawnDaemonByReExec(const char pszPath, bool fAutoShutdown, const char pszPidFile)
562	{
563	PRFileDesc readable = nsnull, writable = nsnull;
564	PRProcessAttr *attr = nsnull;
565	nsresult rv = NS_ERROR_FAILURE;
566	PRFileDesc *devNull;
567	unsigned args_index = 0;
568	// The ugly casts are necessary because the PR_CreateProcessDetached has
569	// a const array of writable strings as a parameter. It won't write. */
570	char * args[1 + 1 + 2 + 1];
571	args[args_index++] = (char *)pszPath;
572	if (fAutoShutdown)
573	args[args_index++] = (char *)"--auto-shutdown";
574	if (pszPidFile)
575	{
576	args[args_index++] = (char *)"--pidfile";
577	args[args_index++] = (char *)pszPidFile;
578	}
579	args[args_index++] = 0;
580
581	// Use a pipe to determine when the daemon process is in the position
582	// to actually process requests. The daemon will write "READY" to the pipe.
583	if (PR_CreatePipe(&readable, &writable) != PR_SUCCESS)
584	goto end;
585	PR_SetFDInheritable(writable, PR_TRUE);
586
587	attr = PR_NewProcessAttr();
588	if (!attr)
589	goto end;
590
591	if (PR_ProcessAttrSetInheritableFD(attr, writable, VBOXSVC_STARTUP_PIPE_NAME) != PR_SUCCESS)
592	goto end;
593
594	devNull = PR_Open("/dev/null", PR_RDWR, 0);
595	if (!devNull)
596	goto end;
597
598	PR_ProcessAttrSetStdioRedirect(attr, PR_StandardInput, devNull);
599	PR_ProcessAttrSetStdioRedirect(attr, PR_StandardOutput, devNull);
600	PR_ProcessAttrSetStdioRedirect(attr, PR_StandardError, devNull);
601
602	if (PR_CreateProcessDetached(pszPath, (char * const *)args, nsnull, attr) != PR_SUCCESS)
603	goto end;
604
605	// Close /dev/null
606	PR_Close(devNull);
607	// Close the child end of the pipe to make it the only owner of the
608	// file descriptor, so that unexpected closing can be detected.
609	PR_Close(writable);
610	writable = nsnull;
611
612	char msg[10];
613	memset(msg, '\0', sizeof(msg));
614	if ( PR_Read(readable, msg, sizeof(msg)-1) != 5
615	\|\| strcmp(msg, "READY"))
616	goto end;
617
618	rv = NS_OK;
619
620	end:
621	if (readable)
622	PR_Close(readable);
623	if (writable)
624	PR_Close(writable);
625	if (attr)
626	PR_DestroyProcessAttr(attr);
627	return rv;
628	}
629
630	int main(int argc, char **argv)
631	{
632	/*
633	* Initialize the VBox runtime without loading
634	* the support driver
635	*/
636	int vrc = RTR3InitExe(argc, &argv, 0);
637	if (RT_FAILURE(vrc))
638	return RTMsgInitFailure(vrc);
639
640	static const RTGETOPTDEF s_aOptions[] =
641	{
642	{ "--automate", 'a', RTGETOPT_REQ_NOTHING },
643	{ "--auto-shutdown", 'A', RTGETOPT_REQ_NOTHING },
644	{ "--daemonize", 'd', RTGETOPT_REQ_NOTHING },
645	{ "--shutdown-delay", 'D', RTGETOPT_REQ_UINT32 },
646	{ "--pidfile", 'p', RTGETOPT_REQ_STRING },
647	{ "--logfile", 'F', RTGETOPT_REQ_STRING },
648	{ "--logrotate", 'R', RTGETOPT_REQ_UINT32 },
649	{ "--logsize", 'S', RTGETOPT_REQ_UINT64 },
650	{ "--loginterval", 'I', RTGETOPT_REQ_UINT32 }
651	};
652
653	const char *pszLogFile = NULL;
654	uint32_t cHistory = 10; // enable log rotation, 10 files
655	uint32_t uHistoryFileTime = RT_SEC_1DAY; // max 1 day per file
656	uint64_t uHistoryFileSize = 100 * _1M; // max 100MB per file
657	bool fDaemonize = false;
658	PRFileDesc *daemon_pipe_wr = nsnull;
659
660	RTGETOPTSTATE GetOptState;
661	vrc = RTGetOptInit(&GetOptState, argc, argv, &s_aOptions[0], RT_ELEMENTS(s_aOptions), 1, 0 /fFlags/);
662	AssertRC(vrc);
663
664	RTGETOPTUNION ValueUnion;
665	while ((vrc = RTGetOpt(&GetOptState, &ValueUnion)))
666	{
667	switch (vrc)
668	{
669	case 'a':
670	/* --automate mode means we are started by XPCOM on
671	* demand. Daemonize ourselves and activate
672	* auto-shutdown. */
673	gAutoShutdown = true;
674	fDaemonize = true;
675	break;
676
677	case 'A':
678	/* --auto-shutdown mode means we're already daemonized. */
679	gAutoShutdown = true;
680	break;
681
682	case 'd':
683	fDaemonize = true;
684	break;
685
686	case 'D':
687	gShutdownDelayMs = ValueUnion.u32;
688	break;
689
690	case 'p':
691	g_pszPidFile = ValueUnion.psz;
692	break;
693
694	case 'F':
695	pszLogFile = ValueUnion.psz;
696	break;
697
698	case 'R':
699	cHistory = ValueUnion.u32;
700	break;
701
702	case 'S':
703	uHistoryFileSize = ValueUnion.u64;
704	break;
705
706	case 'I':
707	uHistoryFileTime = ValueUnion.u32;
708	break;
709
710	case 'h':
711	RTPrintf("no help\n");
712	return RTEXITCODE_SYNTAX;
713
714	case 'V':
715	RTPrintf("%sr%s\n", RTBldCfgVersion(), RTBldCfgRevisionStr());
716	return RTEXITCODE_SUCCESS;
717
718	default:
719	return RTGetOptPrintError(vrc, &ValueUnion);
720	}
721	}
722
723	if (fDaemonize)
724	{
725	vboxsvcSpawnDaemonByReExec(argv[0], gAutoShutdown, g_pszPidFile);
726	exit(126);
727	}
728
729	nsresult rc;
730
731	/** @todo Merge this code with svcmain.cpp (use Logging.cpp?). */
732	char szLogFile[RTPATH_MAX];
733	if (!pszLogFile)
734	{
735	vrc = com::GetVBoxUserHomeDirectory(szLogFile, sizeof(szLogFile));
736	if (RT_SUCCESS(vrc))
737	vrc = RTPathAppend(szLogFile, sizeof(szLogFile), "VBoxSVC.log");
738	}
739	else
740	{
741	if (!RTStrPrintf(szLogFile, sizeof(szLogFile), "%s", pszLogFile))
742	vrc = VERR_NO_MEMORY;
743	}
744	if (RT_FAILURE(vrc))
745	return RTMsgErrorExit(RTEXITCODE_FAILURE, "failed to create logging file name, rc=%Rrc", vrc);
746
747	RTERRINFOSTATIC ErrInfo;
748	vrc = com::VBoxLogRelCreate("XPCOM Server", szLogFile,
749	RTLOGFLAGS_PREFIX_THREAD \| RTLOGFLAGS_PREFIX_TIME_PROG,
750	VBOXSVC_LOG_DEFAULT, "VBOXSVC_RELEASE_LOG",
751	RTLOGDEST_FILE, UINT32_MAX /* cMaxEntriesPerGroup */,
752	cHistory, uHistoryFileTime, uHistoryFileSize,
753	RTErrInfoInitStatic(&ErrInfo));
754	if (RT_FAILURE(vrc))
755	return RTMsgErrorExit(RTEXITCODE_FAILURE, "failed to open release log (%s, %Rrc)", ErrInfo.Core.pszMsg, vrc);
756
757	/* Set up a build identifier so that it can be seen from core dumps what
758	* exact build was used to produce the core. Same as in Console::i_powerUpThread(). */
759	static char saBuildID[48];
760	RTStrPrintf(saBuildID, sizeof(saBuildID), "%s%s%s%s VirtualBox %s r%u %s%s%s%s",
761	"BU", "IL", "DI", "D", RTBldCfgVersion(), RTBldCfgRevision(), "BU", "IL", "DI", "D");
762
763	daemon_pipe_wr = PR_GetInheritedFD(VBOXSVC_STARTUP_PIPE_NAME);
764	RTEnvUnset("NSPR_INHERIT_FDS");
765
766	const nsModuleComponentInfo VirtualBoxInfo = {
767	"VirtualBox component",
768	NS_VIRTUALBOX_CID,
769	NS_VIRTUALBOX_CONTRACTID,
770	VirtualBoxConstructor, // constructor function
771	NULL, // registration function
772	NULL, // deregistration function
773	VirtualBoxClassFactory::FactoryDestructor, // factory destructor function
774	NS_CI_INTERFACE_GETTER_NAME(VirtualBoxWrap),
775	NULL, // language helper
776	&NS_CLASSINFO_NAME(VirtualBoxWrap),
777	0 // flags
778	};
779
780	const nsModuleComponentInfoPlusFactoryConstructor components[] = {
781	{
782	&VirtualBoxInfo,
783	VirtualBoxClassFactory::FactoryConstructor // factory constructor function
784	}
785	};
786
787	do /* goto avoidance only */
788	{
789	rc = com::Initialize();
790	if (NS_FAILED(rc))
791	{
792	RTMsgError("Failed to initialize XPCOM! (rc=%Rhrc)\n", rc);
793	break;
794	}
795
796	nsCOMPtr<nsIComponentRegistrar> registrar;
797	rc = NS_GetComponentRegistrar(getter_AddRefs(registrar));
798	if (NS_FAILED(rc))
799	{
800	RTMsgError("Failed to get component registrar! (rc=%Rhrc)", rc);
801	break;
802	}
803
804	registrar->AutoRegister(nsnull);
805	rc = RegisterSelfComponents(registrar, components,
806	NS_ARRAY_LENGTH(components));
807	if (NS_FAILED(rc))
808	{
809	RTMsgError("Failed to register server components! (rc=%Rhrc)", rc);
810	break;
811	}
812
813	nsCOMPtr<ipcIService> ipcServ(do_GetService(IPC_SERVICE_CONTRACTID, &rc));
814	if (NS_FAILED(rc))
815	{
816	RTMsgError("Failed to get IPC service! (rc=%Rhrc)", rc);
817	break;
818	}
819
820	NS_ADDREF(gIpcServ = ipcServ);
821
822	LogFlowFunc(("Will use \"%s\" as server name.\n", VBOXSVC_IPC_NAME));
823
824	rc = gIpcServ->AddName(VBOXSVC_IPC_NAME);
825	if (NS_FAILED(rc))
826	{
827	LogFlowFunc(("Failed to register the server name (rc=%Rhrc (%08X))!\n"
828	"Is another server already running?\n", rc, rc));
829
830	RTMsgError("Failed to register the server name \"%s\" (rc=%Rhrc)!\n"
831	"Is another server already running?\n",
832	VBOXSVC_IPC_NAME, rc);
833	NS_RELEASE(gIpcServ);
834	break;
835	}
836
837	{
838	/* setup signal handling to convert some signals to a quit event */
839	struct sigaction sa;
840	sa.sa_handler = signal_handler;
841	sigemptyset(&sa.sa_mask);
842	sa.sa_flags = 0;
843	sigaction(SIGINT, &sa, NULL);
844	sigaction(SIGQUIT, &sa, NULL);
845	sigaction(SIGTERM, &sa, NULL);
846	// XXX Temporary allow release assertions to terminate VBoxSVC
847	// sigaction(SIGTRAP, &sa, NULL);
848	sigaction(SIGUSR1, &sa, NULL);
849	}
850
851	{
852	char szBuf[80];
853	size_t cSize;
854
855	cSize = RTStrPrintf(szBuf, sizeof(szBuf),
856	VBOX_PRODUCT" XPCOM Server Version "
857	VBOX_VERSION_STRING);
858	for (size_t i = cSize; i > 0; i--)
859	putchar('*');
860	RTPrintf("\n%s\n", szBuf);
861	RTPrintf("(C) 2004-" VBOX_C_YEAR " " VBOX_VENDOR "\n"
862	"All rights reserved.\n");
863	#ifdef DEBUG
864	RTPrintf("Debug version.\n");
865	#endif
866	}
867
868	if (daemon_pipe_wr != nsnull)
869	{
870	RTPrintf("\nStarting event loop....\n[send TERM signal to quit]\n");
871	/* now we're ready, signal the parent process */
872	PR_Write(daemon_pipe_wr, RT_STR_TUPLE("READY"));
873	/* close writing end of the pipe, its job is done */
874	PR_Close(daemon_pipe_wr);
875	}
876	else
877	RTPrintf("\nStarting event loop....\n[press Ctrl-C to quit]\n");
878
879	if (g_pszPidFile)
880	{
881	RTFILE hPidFile = NIL_RTFILE;
882	vrc = RTFileOpen(&hPidFile, g_pszPidFile, RTFILE_O_WRITE \| RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE);
883	if (RT_SUCCESS(vrc))
884	{
885	char szBuf[32];
886	const char *lf = "\n";
887	RTStrFormatNumber(szBuf, getpid(), 10, 0, 0, 0);
888	RTFileWrite(hPidFile, szBuf, strlen(szBuf), NULL);
889	RTFileWrite(hPidFile, lf, strlen(lf), NULL);
890	RTFileClose(hPidFile);
891	}
892	}
893
894	// Increase the file table size to 10240 or as high as possible.
895	struct rlimit lim;
896	if (getrlimit(RLIMIT_NOFILE, &lim) == 0)
897	{
898	if ( lim.rlim_cur < 10240
899	&& lim.rlim_cur < lim.rlim_max)
900	{
901	lim.rlim_cur = RT_MIN(lim.rlim_max, 10240);
902	if (setrlimit(RLIMIT_NOFILE, &lim) == -1)
903	RTPrintf("WARNING: failed to increase file descriptor limit. (%d)\n", errno);
904	}
905	}
906	else
907	RTPrintf("WARNING: failed to obtain per-process file-descriptor limit (%d).\n", errno);
908
909	/* get the main thread's event queue */
910	gEventQ = com::NativeEventQueue::getMainEventQueue();
911	if (!gEventQ)
912	{
913	RTMsgError("Failed to get the main event queue! (rc=%Rhrc)", rc);
914	break;
915	}
916
917	while (gKeepRunning)
918	{
919	vrc = gEventQ->processEventQueue(RT_INDEFINITE_WAIT);
920	if (RT_FAILURE(vrc) && vrc != VERR_TIMEOUT)
921	{
922	LogRel(("Failed to wait for events! (rc=%Rrc)", vrc));
923	break;
924	}
925	}
926
927	gEventQ = NULL;
928	RTPrintf("Terminated event loop.\n");
929
930	/* unregister ourselves. After this point, clients will start a new
931	* process because they won't be able to resolve the server name.*/
932	gIpcServ->RemoveName(VBOXSVC_IPC_NAME);
933	}
934	while (0); // this scopes the nsCOMPtrs
935
936	NS_IF_RELEASE(gIpcServ);
937
938	/* no nsCOMPtrs are allowed to be alive when you call com::Shutdown(). */
939
940	LogFlowFunc(("Calling com::Shutdown()...\n"));
941	rc = com::Shutdown();
942	LogFlowFunc(("Finished com::Shutdown() (rc=%Rhrc)\n", rc));
943
944	if (NS_FAILED(rc))
945	RTMsgError("Failed to shutdown XPCOM! (rc=%Rhrc)", rc);
946
947	RTPrintf("XPCOM server has shutdown.\n");
948
949	if (g_pszPidFile)
950	RTFileDelete(g_pszPidFile);
951
952	return RTEXITCODE_SUCCESS;
953	}

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source: vbox/trunk/src/VBox/Main/src-server/xpcom/server.cpp@ 78273

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