NATNetworkImpl.cpp@ 48107

Last change on this file since 48107 was 48107, checked in by vboxsync, 11 years ago
NATNetwork windows build fix. Fixed memory leak in recalculateIpv4AddressAssignments due to confusing string handling and simplified the code there a little (~20 lines shorter). Fixed indentation and some other nits.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 29.9 KB

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1	/* $Id: NATNetworkImpl.cpp 48107 2013-08-27 22:15:13Z vboxsync $ */
2	/** @file
3	* INATNetwork implementation.
4	*/
5
6	/*
7	* Copyright (C) 2013 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	#include "NetworkServiceRunner.h"
19	#include "DHCPServerImpl.h"
20	#include "NATNetworkImpl.h"
21	#include "AutoCaller.h"
22	#include "Logging.h"
23
24	#include <iprt/asm.h>
25	#include <iprt/cpp/utils.h>
26	#include <iprt/cidr.h>
27	#include <iprt/net.h>
28	#include <VBox/com/array.h>
29	#include <VBox/com/ptr.h>
30	#include <VBox/settings.h>
31
32	#include "EventImpl.h"
33	#include "VBoxEvents.h"
34
35	#include "VirtualBoxImpl.h"
36	#include <algorithm>
37	#include <list>
38
39	#ifndef RT_OS_WINDOWS
40	# include <netinet/in.h>
41	#else
42	# define IN_LOOPBACKNET 127
43	#endif
44
45
46	// constructor / destructor
47	/////////////////////////////////////////////////////////////////////////////
48
49	struct NATNetwork::Data
50	{
51	Data()
52	: fEnabled(FALSE)
53	, fIPv6Enabled(FALSE)
54	, fAdvertiseDefaultIPv6Route(FALSE)
55	, fNeedDhcpServer(FALSE)
56	{
57	IPv4Gateway.setNull();
58	IPv4NetworkCidr.setNull();
59	IPv6Prefix.setNull();
60	IPv4DhcpServer.setNull();
61	IPv4NetworkMask.setNull();
62	IPv4DhcpServerLowerIp.setNull();
63	IPv4DhcpServerUpperIp.setNull();
64	}
65	virtual ~Data(){}
66	const ComObjPtr<EventSource> pEventSource;
67	#ifdef VBOX_WITH_NAT_SERVICE
68	NATNetworkServiceRunner NATRunner;
69	ComObjPtr<IDHCPServer> dhcpServer;
70	#endif
71	Bstr IPv4Gateway;
72	Bstr IPv4NetworkCidr;
73	Bstr IPv4NetworkMask;
74	Bstr IPv4DhcpServer;
75	Bstr IPv4DhcpServerLowerIp;
76	Bstr IPv4DhcpServerUpperIp;
77	BOOL fEnabled;
78	BOOL fIPv6Enabled;
79	Bstr IPv6Prefix;
80	BOOL fAdvertiseDefaultIPv6Route;
81	BOOL fNeedDhcpServer;
82	NATRuleMap mapName2PortForwardRule4;
83	NATRuleMap mapName2PortForwardRule6;
84	settings::NATLoopbackOffsetList llNATLoopbackOffsetList;
85	uint32_t u32LoopbackIp6;
86	uint32_t offGateway;
87	uint32_t offDhcp;
88	};
89
90	NATNetwork::NATNetwork()
91	: mVirtualBox(NULL)
92	{
93	}
94
95	NATNetwork::~NATNetwork()
96	{
97	}
98
99	HRESULT NATNetwork::FinalConstruct()
100	{
101	return BaseFinalConstruct();
102	}
103
104	void NATNetwork::FinalRelease()
105	{
106	uninit ();
107
108	BaseFinalRelease();
109	}
110
111	void NATNetwork::uninit()
112	{
113	/* Enclose the state transition Ready->InUninit->NotReady */
114	AutoUninitSpan autoUninitSpan(this);
115	if (autoUninitSpan.uninitDone())
116	return;
117	delete m;
118	m = NULL;
119	unconst(mVirtualBox) = NULL;
120	}
121
122	HRESULT NATNetwork::init(VirtualBox *aVirtualBox, IN_BSTR aName)
123	{
124	AssertReturn(aName != NULL, E_INVALIDARG);
125
126	AutoInitSpan autoInitSpan(this);
127	AssertReturn(autoInitSpan.isOk(), E_FAIL);
128
129	/* share VirtualBox weakly (parent remains NULL so far) */
130	unconst(mVirtualBox) = aVirtualBox;
131	unconst(mName) = aName;
132	m = new Data();
133	m->offGateway = 1;
134	m->IPv4NetworkCidr = "10.0.2.0/24";
135	m->IPv6Prefix = "fe80::/64";
136	m->fEnabled = FALSE;
137
138	settings::NATHostLoopbackOffset off;
139	off.strLoopbackHostAddress = "127.0.0.1";
140	off.u32Offset = (uint32_t)2;
141	m->llNATLoopbackOffsetList.push_back(off);
142
143	recalculateIpv4AddressAssignments();
144
145	HRESULT hrc = unconst(m->pEventSource).createObject();
146	if (FAILED(hrc)) throw hrc;
147
148	hrc = m->pEventSource->init(static_cast<INATNetwork *>(this));
149	if (FAILED(hrc)) throw hrc;
150
151	/* Confirm a successful initialization */
152	autoInitSpan.setSucceeded();
153
154	return S_OK;
155	}
156
157
158	HRESULT NATNetwork::init(VirtualBox *aVirtualBox,
159	const settings::NATNetwork &data)
160	{
161	/* Enclose the state transition NotReady->InInit->Ready */
162	AutoInitSpan autoInitSpan(this);
163	AssertReturn(autoInitSpan.isOk(), E_FAIL);
164
165	/* share VirtualBox weakly (parent remains NULL so far) */
166	unconst(mVirtualBox) = aVirtualBox;
167
168	unconst(mName) = data.strNetworkName;
169	m = new Data();
170	m->IPv4NetworkCidr = data.strNetwork;
171	m->fEnabled = data.fEnabled;
172	m->fAdvertiseDefaultIPv6Route = data.fAdvertiseDefaultIPv6Route;
173	m->fNeedDhcpServer = data.fNeedDhcpServer;
174
175	m->u32LoopbackIp6 = data.u32HostLoopback6Offset;
176
177	m->llNATLoopbackOffsetList.clear();
178	m->llNATLoopbackOffsetList.assign(data.llHostLoopbackOffsetList.begin(),
179	data.llHostLoopbackOffsetList.end());
180
181	recalculateIpv4AddressAssignments();
182
183	/* IPv4 port-forward rules */
184	m->mapName2PortForwardRule4.clear();
185	for (settings::NATRuleList::const_iterator it = data.llPortForwardRules4.begin();
186	it != data.llPortForwardRules4.end(); ++it)
187	{
188	m->mapName2PortForwardRule4.insert(std::make_pair(it->strName.c_str(), *it));
189	}
190
191	/* IPv6 port-forward rules */
192	m->mapName2PortForwardRule6.clear();
193	for (settings::NATRuleList::const_iterator it = data.llPortForwardRules6.begin();
194	it != data.llPortForwardRules6.end(); ++it)
195	{
196	m->mapName2PortForwardRule6.insert(std::make_pair(it->strName, *it));
197	}
198
199	HRESULT hrc = unconst(m->pEventSource).createObject();
200	if (FAILED(hrc)) throw hrc;
201
202	hrc = m->pEventSource->init(static_cast<INATNetwork *>(this));
203	if (FAILED(hrc)) throw hrc;
204
205	autoInitSpan.setSucceeded();
206
207	return S_OK;
208	}
209
210	#ifdef NAT_XML_SERIALIZATION
211	HRESULT NATNetwork::saveSettings(settings::NATNetwork &data)
212	{
213	AutoCaller autoCaller(this);
214	if (FAILED(autoCaller.rc())) return autoCaller.rc();
215
216	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
217
218	data.strNetworkName = mName;
219	data.strNetwork = m->IPv4NetworkCidr;
220	data.fEnabled = RT_BOOL(m->fEnabled);
221	data.fAdvertiseDefaultIPv6Route = RT_BOOL(m->fAdvertiseDefaultIPv6Route);
222	data.fNeedDhcpServer = RT_BOOL(m->fNeedDhcpServer);
223	data.fIPv6 = RT_BOOL(m->fIPv6Enabled);
224	data.strIPv6Prefix = m->IPv6Prefix;
225
226	/* saving ipv4 port-forward Rules*/
227	data.llPortForwardRules4.clear();
228	for (NATRuleMap::iterator it = m->mapName2PortForwardRule4.begin();
229	it != m->mapName2PortForwardRule4.end(); ++it)
230	data.llPortForwardRules4.push_back(it->second);
231
232	/* saving ipv6 port-forward Rules*/
233	data.llPortForwardRules6.clear();
234	for (NATRuleMap::iterator it = m->mapName2PortForwardRule6.begin();
235	it != m->mapName2PortForwardRule6.end(); ++it)
236	data.llPortForwardRules4.push_back(it->second);
237
238	data.u32HostLoopback6Offset = m->u32LoopbackIp6;
239
240	data.llHostLoopbackOffsetList.clear();
241	data.llHostLoopbackOffsetList.assign(m->llNATLoopbackOffsetList.begin(),
242	m->llNATLoopbackOffsetList.end());
243
244	mVirtualBox->onNATNetworkSetting(mName.raw(),
245	data.fEnabled ? TRUE : FALSE,
246	m->IPv4NetworkCidr.raw(),
247	m->IPv4Gateway.raw(),
248	data.fAdvertiseDefaultIPv6Route ? TRUE : FALSE,
249	data.fNeedDhcpServer ? TRUE : FALSE);
250
251	return S_OK;
252	}
253	#endif /* NAT_XML_SERIALIZATION */
254
255	STDMETHODIMP NATNetwork::COMGETTER(EventSource)(IEventSource ** aEventSource)
256	{
257	CheckComArgOutPointerValid(aEventSource);
258
259	AutoCaller autoCaller(this);
260	if (FAILED(autoCaller.rc())) return autoCaller.rc();
261
262	/* event source is const, no need to lock */
263	m->pEventSource.queryInterfaceTo(aEventSource);
264
265	return S_OK;
266	}
267
268	STDMETHODIMP NATNetwork::COMGETTER(NetworkName)(BSTR *aName)
269	{
270	CheckComArgOutPointerValid(aName);
271
272	AutoCaller autoCaller(this);
273	if (FAILED(autoCaller.rc())) return autoCaller.rc();
274
275	mName.cloneTo(aName);
276
277	return S_OK;
278	}
279
280	STDMETHODIMP NATNetwork::COMSETTER(NetworkName)(IN_BSTR aName)
281	{
282	CheckComArgOutPointerValid(aName);
283
284	HRESULT rc = S_OK;
285	AutoCaller autoCaller(this);
286	if (FAILED(autoCaller.rc())) return autoCaller.rc();
287	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
288	unconst(mName) = aName;
289
290	alock.release();
291
292	#ifdef NAT_XML_SERIALIZATION
293	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
294	rc = mVirtualBox->saveSettings();
295	#endif
296	return rc;
297	}
298
299
300	STDMETHODIMP NATNetwork::COMGETTER(Enabled)(BOOL *aEnabled)
301	{
302	CheckComArgOutPointerValid(aEnabled);
303
304	AutoCaller autoCaller(this);
305	if (FAILED(autoCaller.rc())) return autoCaller.rc();
306
307	*aEnabled = m->fEnabled;
308	recalculateIpv4AddressAssignments();
309
310	return S_OK;
311	}
312
313	STDMETHODIMP NATNetwork::COMSETTER(Enabled)(BOOL aEnabled)
314	{
315	AutoCaller autoCaller(this);
316	if (FAILED(autoCaller.rc())) return autoCaller.rc();
317	HRESULT rc = S_OK;
318	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
319	m->fEnabled = aEnabled;
320
321	// save the global settings; for that we should hold only the VirtualBox lock
322	alock.release();
323	#ifdef NAT_XML_SERIALIZATION
324	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
325	rc = mVirtualBox->saveSettings();
326	#endif
327	return rc;
328	}
329
330	STDMETHODIMP NATNetwork::COMGETTER(Gateway)(BSTR *aIPv4Gateway)
331	{
332	CheckComArgOutPointerValid(aIPv4Gateway);
333
334	AutoCaller autoCaller(this);
335	if (FAILED(autoCaller.rc())) return autoCaller.rc();
336
337	m->IPv4Gateway.cloneTo(aIPv4Gateway);
338
339	return S_OK;
340	}
341
342	STDMETHODIMP NATNetwork::COMGETTER(Network)(BSTR *aIPv4NetworkCidr)
343	{
344	CheckComArgOutPointerValid(aIPv4NetworkCidr);
345
346	AutoCaller autoCaller(this);
347	if (FAILED(autoCaller.rc())) return autoCaller.rc();
348	m->IPv4NetworkCidr.cloneTo(aIPv4NetworkCidr);
349	return S_OK;
350	}
351
352	STDMETHODIMP NATNetwork::COMSETTER(Network)(IN_BSTR aIPv4NetworkCidr)
353	{
354	CheckComArgOutPointerValid(aIPv4NetworkCidr);
355
356	HRESULT rc = S_OK;
357	AutoCaller autoCaller(this);
358	if (FAILED(autoCaller.rc())) return autoCaller.rc();
359	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
360	/* silently ignore network cidr update */
361	if (m->mapName2PortForwardRule4.empty())
362	{
363
364	unconst(m->IPv4NetworkCidr) = Bstr(aIPv4NetworkCidr);
365	recalculateIpv4AddressAssignments();
366	alock.release();
367
368	#ifdef NAT_XML_SERIALIZATION
369	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
370	rc = mVirtualBox->saveSettings();
371	#endif
372	}
373	return rc;
374	}
375
376	STDMETHODIMP NATNetwork::COMGETTER(IPv6Enabled)(BOOL *aAdvertiseDefaultIPv6Route)
377	{
378	CheckComArgOutPointerValid(aAdvertiseDefaultIPv6Route);
379
380	AutoCaller autoCaller(this);
381	if (FAILED(autoCaller.rc())) return autoCaller.rc();
382
383	*aAdvertiseDefaultIPv6Route = m->fAdvertiseDefaultIPv6Route;
384
385	return S_OK;
386	}
387
388	STDMETHODIMP NATNetwork::COMSETTER(IPv6Enabled)(BOOL aAdvertiseDefaultIPv6Route)
389	{
390	AutoCaller autoCaller(this);
391	if (FAILED(autoCaller.rc())) return autoCaller.rc();
392	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
393	m->fAdvertiseDefaultIPv6Route = aAdvertiseDefaultIPv6Route;
394
395	// save the global settings; for that we should hold only the VirtualBox lock
396	alock.release();
397
398	HRESULT rc = S_OK;
399	#ifdef NAT_XML_SERIALIZATION
400	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
401	rc = mVirtualBox->saveSettings();
402	#endif
403	return rc;
404	}
405
406	STDMETHODIMP NATNetwork::COMGETTER(IPv6Prefix) (BSTR *aIPv6Prefix)
407	{
408	CheckComArgOutPointerValid(aIPv6Prefix);
409
410	AutoCaller autoCaller(this);
411	if (FAILED(autoCaller.rc())) return autoCaller.rc();
412	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
413
414	m->IPv6Prefix.cloneTo(aIPv6Prefix);
415
416	return S_OK;
417	}
418
419	STDMETHODIMP NATNetwork::COMSETTER(IPv6Prefix) (IN_BSTR aIPv6Prefix)
420	{
421	CheckComArgOutPointerValid(aIPv6Prefix);
422
423	HRESULT rc = S_OK;
424	AutoCaller autoCaller(this);
425	if (FAILED(autoCaller.rc())) return autoCaller.rc();
426	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
427
428	/* silently ignore network cidr update */
429	if (m->mapName2PortForwardRule6.empty())
430	{
431
432	unconst(m->IPv6Prefix) = Bstr(aIPv6Prefix);
433	/* @todo: do we need recalculation ? */
434	alock.release();
435
436	#ifdef NAT_XML_SERIALIZATION
437	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
438	rc = mVirtualBox->saveSettings();
439	#endif
440	}
441	return rc;
442	}
443
444	STDMETHODIMP NATNetwork::COMGETTER(AdvertiseDefaultIPv6RouteEnabled)(BOOL *aAdvertiseDefaultIPv6Route)
445	{
446	CheckComArgOutPointerValid(aAdvertiseDefaultIPv6Route);
447
448	AutoCaller autoCaller(this);
449	if (FAILED(autoCaller.rc())) return autoCaller.rc();
450
451	*aAdvertiseDefaultIPv6Route = m->fAdvertiseDefaultIPv6Route;
452
453	return S_OK;
454	}
455
456	STDMETHODIMP NATNetwork::COMSETTER(AdvertiseDefaultIPv6RouteEnabled)(BOOL aAdvertiseDefaultIPv6Route)
457	{
458	AutoCaller autoCaller(this);
459	if (FAILED(autoCaller.rc())) return autoCaller.rc();
460	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
461	m->fAdvertiseDefaultIPv6Route = aAdvertiseDefaultIPv6Route;
462
463	// save the global settings; for that we should hold only the VirtualBox lock
464	alock.release();
465
466	HRESULT rc = S_OK;
467	#ifdef NAT_XML_SERIALIZATION
468	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
469	rc = mVirtualBox->saveSettings();
470	#endif
471	return rc;
472	}
473
474	STDMETHODIMP NATNetwork::COMGETTER(NeedDhcpServer)(BOOL *aNeedDhcpServer)
475	{
476	CheckComArgOutPointerValid(aNeedDhcpServer);
477
478	AutoCaller autoCaller(this);
479	if (FAILED(autoCaller.rc())) return autoCaller.rc();
480
481	*aNeedDhcpServer = m->fNeedDhcpServer;
482
483	return S_OK;
484	}
485
486	STDMETHODIMP NATNetwork::COMSETTER(NeedDhcpServer)(BOOL aNeedDhcpServer)
487	{
488	AutoCaller autoCaller(this);
489	if (FAILED(autoCaller.rc())) return autoCaller.rc();
490	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
491	m->fNeedDhcpServer = aNeedDhcpServer;
492
493	recalculateIpv4AddressAssignments();
494
495	// save the global settings; for that we should hold only the VirtualBox lock
496	alock.release();
497
498	HRESULT rc = S_OK;
499	#ifdef NAT_XML_SERIALIZATION
500	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
501	rc = mVirtualBox->saveSettings();
502	#endif
503	return rc;
504	}
505
506
507	STDMETHODIMP NATNetwork::COMGETTER(LocalMappings)(ComSafeArrayOut(BSTR, aLocalMappings))
508	{
509	CheckComArgOutSafeArrayPointerValid(aLocalMappings);
510
511	AutoCaller autoCaller(this);
512	if (FAILED(autoCaller.rc())) return autoCaller.rc();
513	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
514
515	com::SafeArray<BSTR> sf(m->llNATLoopbackOffsetList.size());
516
517	size_t i = 0;
518	settings::NATLoopbackOffsetList::const_iterator it;
519
520	for (it = m->llNATLoopbackOffsetList.begin();
521	it != m->llNATLoopbackOffsetList.end(); ++it, ++i)
522	{
523	BstrFmt bstr("%s;%d",
524	(*it).strLoopbackHostAddress.c_str(),
525	(*it).u32Offset);
526	bstr.detachTo(&sf[i]);
527	}
528	sf.detachTo(ComSafeArrayOutArg(aLocalMappings));
529
530	return S_OK;
531	}
532
533
534	STDMETHODIMP NATNetwork::AddLocalMapping(IN_BSTR aHostId, LONG aOffset)
535	{
536	AutoCaller autoCaller(this);
537	if (FAILED(autoCaller.rc())) return autoCaller.rc();
538
539	//AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
540
541	RTNETADDRIPV4 addr, net, mask;
542
543	int rc = RTNetStrToIPv4Addr(Utf8Str(aHostId).c_str(), &addr);
544	if (RT_FAILURE(rc))
545	return E_INVALIDARG;
546
547	/* check against 127/8 */
548	if ((RT_N2H_U32(addr.u) >> IN_CLASSA_NSHIFT) != IN_LOOPBACKNET)
549	return E_INVALIDARG;
550
551	/* check against networkid vs network mask */
552	rc = RTCidrStrToIPv4(Utf8Str(m->IPv4NetworkCidr).c_str(), &net, &mask);
553	if (RT_FAILURE(rc))
554	return E_INVALIDARG;
555
556	if (((net.u + aOffset) & mask.u) != net.u)
557	return E_INVALIDARG;
558
559	settings::NATLoopbackOffsetList::iterator it;
560
561	it = std::find(m->llNATLoopbackOffsetList.begin(),
562	m->llNATLoopbackOffsetList.end(),
563	Utf8Str(aHostId).c_str());
564
565	if (it != m->llNATLoopbackOffsetList.end())
566	{
567	if (aOffset == 0) /* erase */
568	m->llNATLoopbackOffsetList.erase(it, it);
569	else /* modify */
570	{
571	settings::NATLoopbackOffsetList::iterator it1;
572	it1 = std::find(m->llNATLoopbackOffsetList.begin(),
573	m->llNATLoopbackOffsetList.end(),
574	(uint32_t)aOffset);
575	if (it1 != m->llNATLoopbackOffsetList.end())
576	return E_INVALIDARG; /* this offset is already registered. */
577
578	(*it).u32Offset = aOffset;
579	}
580
581	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
582	return mVirtualBox->saveSettings();
583	}
584
585	/* injection */
586	it = std::find(m->llNATLoopbackOffsetList.begin(),
587	m->llNATLoopbackOffsetList.end(),
588	(uint32_t)aOffset);
589
590	if (it != m->llNATLoopbackOffsetList.end())
591	return E_INVALIDARG; /* offset is already registered. */
592
593	settings::NATHostLoopbackOffset off;
594	off.strLoopbackHostAddress = aHostId;
595	off.u32Offset = (uint32_t)aOffset;
596	m->llNATLoopbackOffsetList.push_back(off);
597
598	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
599	return mVirtualBox->saveSettings();
600	}
601
602
603	STDMETHODIMP NATNetwork::COMGETTER(LoopbackIp6)(LONG *aLoopbackIp6)
604	{
605	AutoCaller autoCaller(this);
606	if (FAILED(autoCaller.rc())) return autoCaller.rc();
607	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
608
609	*aLoopbackIp6 = m->u32LoopbackIp6;
610	return S_OK;
611	}
612
613
614	STDMETHODIMP NATNetwork::COMSETTER(LoopbackIp6)(LONG aLoopbackIp6)
615	{
616	AutoCaller autoCaller(this);
617	if (FAILED(autoCaller.rc())) return autoCaller.rc();
618	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
619
620	m->u32LoopbackIp6 = aLoopbackIp6;
621
622	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
623	return mVirtualBox->saveSettings();
624	}
625
626	STDMETHODIMP NATNetwork::COMGETTER(PortForwardRules4)(ComSafeArrayOut(BSTR, aPortForwardRules4))
627	{
628	CheckComArgOutSafeArrayPointerValid(aPortForwardRules4);
629
630	AutoCaller autoCaller(this);
631	if (FAILED(autoCaller.rc())) return autoCaller.rc();
632
633	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
634	GetPortForwardRulesFromMap(ComSafeArrayInArg(aPortForwardRules4),
635	m->mapName2PortForwardRule4);
636	alock.release();
637	return S_OK;
638	}
639
640	STDMETHODIMP NATNetwork::COMGETTER(PortForwardRules6)(ComSafeArrayOut(BSTR,
641	aPortForwardRules6))
642	{
643	CheckComArgOutSafeArrayPointerValid(aPortForwardRules6);
644
645	AutoCaller autoCaller(this);
646	if (FAILED(autoCaller.rc())) return autoCaller.rc();
647
648	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
649	GetPortForwardRulesFromMap(ComSafeArrayInArg(aPortForwardRules6), m->mapName2PortForwardRule6);
650	return S_OK;
651	}
652
653	STDMETHODIMP NATNetwork::AddPortForwardRule(BOOL aIsIpv6,
654	IN_BSTR aPortForwardRuleName,
655	NATProtocol_T aProto,
656	IN_BSTR aHostIp,
657	USHORT aHostPort,
658	IN_BSTR aGuestIp,
659	USHORT aGuestPort)
660	{
661	int rc = S_OK;
662	AutoCaller autoCaller(this);
663	if (FAILED(autoCaller.rc())) return autoCaller.rc();
664
665	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
666	Utf8Str name = aPortForwardRuleName;
667	Utf8Str proto;
668	settings::NATRule r;
669	NATRuleMap& mapRules = aIsIpv6 ? m->mapName2PortForwardRule6 : m->mapName2PortForwardRule4;
670	switch (aProto)
671	{
672	case NATProtocol_TCP:
673	proto = "tcp";
674	break;
675	case NATProtocol_UDP:
676	proto = "udp";
677	break;
678	default:
679	return E_INVALIDARG;
680	}
681	if (name.isEmpty())
682	name = Utf8StrFmt("%s_[%s]%%%d_[%s]%%%d", proto.c_str(),
683	Utf8Str(aHostIp).c_str(), aHostPort,
684	Utf8Str(aGuestIp).c_str(), aGuestPort);
685
686	NATRuleMap::iterator it;
687
688	for (it = mapRules.begin(); it != mapRules.end(); ++it)
689	{
690	r = it->second;
691	if (it->first == name)
692	return setError(E_INVALIDARG,
693	tr("A NAT rule of this name already exists"));
694	if ( r.strHostIP == Utf8Str(aHostIp)
695	&& r.u16HostPort == aHostPort
696	&& r.proto == aProto)
697	return setError(E_INVALIDARG,
698	tr("A NAT rule for this host port and this host IP already exists"));
699	}
700
701	r.strName = name.c_str();
702	r.proto = aProto;
703	r.strHostIP = aHostIp;
704	r.u16HostPort = aHostPort;
705	r.strGuestIP = aGuestIp;
706	r.u16GuestPort = aGuestPort;
707	mapRules.insert(std::make_pair(name, r));
708
709	alock.release();
710	mVirtualBox->onNATNetworkPortForward(mName.raw(), TRUE, aIsIpv6,
711	aPortForwardRuleName, aProto,
712	aHostIp, aHostPort,
713	aGuestIp, aGuestPort);
714
715	/* Notify listerners listening on this network only */
716	fireNATNetworkPortForwardEvent(m->pEventSource, mName.raw(), TRUE,
717	aIsIpv6, aPortForwardRuleName, aProto,
718	aHostIp, aHostPort,
719	aGuestIp, aGuestPort);
720
721	#ifdef NAT_XML_SERIALIZATION
722	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
723	rc = mVirtualBox->saveSettings();
724	#endif
725	return rc;
726	}
727
728	STDMETHODIMP NATNetwork::RemovePortForwardRule(BOOL aIsIpv6, IN_BSTR aPortForwardRuleName)
729	{
730	AutoCaller autoCaller(this);
731	if (FAILED(autoCaller.rc())) return autoCaller.rc();
732
733	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
734	NATRuleMap& mapRules = aIsIpv6 ? m->mapName2PortForwardRule6 : m->mapName2PortForwardRule4;
735	NATRuleMap::iterator it = mapRules.find(aPortForwardRuleName);
736
737	if (it == mapRules.end())
738	return E_INVALIDARG;
739
740	Utf8Str strHostIP = it->second.strHostIP;
741	Utf8Str strGuestIP = it->second.strGuestIP;
742	uint16_t u16HostPort = it->second.u16HostPort;
743	uint16_t u16GuestPort = it->second.u16GuestPort;
744	NATProtocol_T proto = it->second.proto;
745
746	mapRules.erase(it);
747
748	alock.release();
749
750	mVirtualBox->onNATNetworkPortForward(mName.raw(), FALSE, aIsIpv6,
751	aPortForwardRuleName, proto,
752	Bstr(strHostIP).raw(), u16HostPort,
753	Bstr(strGuestIP).raw(), u16GuestPort);
754
755	/* Notify listerners listening on this network only */
756	fireNATNetworkPortForwardEvent(m->pEventSource, mName.raw(), FALSE,
757	aIsIpv6, aPortForwardRuleName, proto,
758	Bstr(strHostIP).raw(), u16HostPort,
759	Bstr(strGuestIP).raw(), u16GuestPort);
760	HRESULT rc = S_OK;
761	#ifdef NAT_XML_SERIALIZATION
762	AutoWriteLock vboxLock(mVirtualBox COMMA_LOCKVAL_SRC_POS);
763	rc = mVirtualBox->saveSettings();
764	#endif
765
766	return rc;
767	}
768
769
770	STDMETHODIMP NATNetwork::Start(IN_BSTR aTrunkType)
771	{
772	#ifdef VBOX_WITH_NAT_SERVICE
773	AutoCaller autoCaller(this);
774	if (FAILED(autoCaller.rc())) return autoCaller.rc();
775
776	if (!m->fEnabled) return S_OK;
777
778	m->NATRunner.setOption(NETCFG_NETNAME, mName, true);
779	m->NATRunner.setOption(NETCFG_TRUNKTYPE, Utf8Str(aTrunkType), true);
780	m->NATRunner.setOption(NETCFG_IPADDRESS, m->IPv4Gateway, true);
781	m->NATRunner.setOption(NETCFG_NETMASK, m->IPv4NetworkMask, true);
782
783	/* No portforwarding rules from command-line, all will be fetched via API */
784
785	if (m->fNeedDhcpServer)
786	{
787	/*
788	* Just to as idea... via API (on creation user pass the cidr of network and)
789	* and we calculate it's addreses (mutable?).
790	*/
791
792	/*
793	* Configuration and running DHCP server:
794	* 1. find server first createDHCPServer
795	* 2. if return status is E_INVALARG => server already exists just find and start.
796	* 3. if return status neither E_INVALRG nor S_OK => return E_FAIL
797	* 4. if return status S_OK proceed to DHCP server configuration
798	* 5. call setConfiguration() and pass all required parameters
799	* 6. start dhcp server.
800	*/
801	int rc = mVirtualBox->FindDHCPServerByNetworkName(mName.raw(),
802	m->dhcpServer.asOutParam());
803	switch (rc)
804	{
805	case E_INVALIDARG:
806	/* server haven't beeen found let create it then */
807	rc = mVirtualBox->CreateDHCPServer(mName.raw(),
808	m->dhcpServer.asOutParam());
809	if (FAILED(rc))
810	return E_FAIL;
811	/* breakthrough */
812
813	{
814	LogFunc(("gateway: %s, dhcpserver:%s, dhcplowerip:%s, dhcpupperip:%s\n",
815	Utf8Str(m->IPv4Gateway.raw()).c_str(),
816	Utf8Str(m->IPv4DhcpServer.raw()).c_str(),
817	Utf8Str(m->IPv4DhcpServerLowerIp.raw()).c_str(),
818	Utf8Str(m->IPv4DhcpServerUpperIp.raw()).c_str()));
819
820	m->dhcpServer->AddGlobalOption(DhcpOpt_Router, m->IPv4Gateway.raw());
821
822	rc = m->dhcpServer->COMSETTER(Enabled)(true);
823
824	BSTR dhcpip = NULL;
825	BSTR netmask = NULL;
826	BSTR lowerip = NULL;
827	BSTR upperip = NULL;
828
829	m->IPv4DhcpServer.cloneTo(&dhcpip);
830	m->IPv4NetworkMask.cloneTo(&netmask);
831	m->IPv4DhcpServerLowerIp.cloneTo(&lowerip);
832	m->IPv4DhcpServerUpperIp.cloneTo(&upperip);
833	rc = m->dhcpServer->SetConfiguration(dhcpip,
834	netmask,
835	lowerip,
836	upperip);
837	}
838	case S_OK:
839	break;
840
841	default:
842	return E_FAIL;
843	}
844
845	rc = m->dhcpServer->Start(mName.raw(), Bstr("").raw(), aTrunkType);
846	if (FAILED(rc))
847	{
848	m->dhcpServer.setNull();
849	return E_FAIL;
850	}
851	}
852
853	if (RT_SUCCESS(m->NATRunner.start()))
854	{
855	mVirtualBox->onNATNetworkStartStop(mName.raw(), TRUE);
856	return S_OK;
857	}
858	/** @todo missing setError()! */
859	return E_FAIL;
860	#else
861	NOREF(aTrunkType);
862	ReturnComNotImplemented();
863	#endif
864	}
865
866	STDMETHODIMP NATNetwork::Stop()
867	{
868	#ifdef VBOX_WITH_NAT_SERVICE
869	if (!m->dhcpServer.isNull())
870	m->dhcpServer->Stop();
871
872	if (RT_SUCCESS(m->NATRunner.stop()))
873	{
874	mVirtualBox->onNATNetworkStartStop(mName.raw(), FALSE);
875	return S_OK;
876	}
877	/** @todo missing setError()! */
878	return E_FAIL;
879	#else
880	ReturnComNotImplemented();
881	#endif
882	}
883
884	void NATNetwork::GetPortForwardRulesFromMap(ComSafeArrayOut(BSTR, aPortForwardRules), NATRuleMap& aRules)
885	{
886	com::SafeArray<BSTR> sf(aRules.size());
887	size_t i = 0;
888	NATRuleMap::const_iterator it;
889	for (it = aRules.begin();
890	it != aRules.end(); ++it, ++i)
891	{
892	settings::NATRule r = it->second;
893	BstrFmt bstr("%s:%s:[%s]:%d:[%s]:%d",
894	r.strName.c_str(),
895	(r.proto == NATProtocol_TCP? "tcp" : "udp"),
896	r.strHostIP.c_str(),
897	r.u16HostPort,
898	r.strGuestIP.c_str(),
899	r.u16GuestPort);
900	bstr.detachTo(&sf[i]);
901	}
902	sf.detachTo(ComSafeArrayOutArg(aPortForwardRules));
903	}
904
905
906	int NATNetwork::findFirstAvailableOffset(uint32_t *poff)
907	{
908	RTNETADDRIPV4 network, netmask;
909
910	int rc = RTCidrStrToIPv4(Utf8Str(m->IPv4NetworkCidr.raw()).c_str(),
911	&network,
912	&netmask);
913	AssertRCReturn(rc, rc);
914
915	uint32_t off;
916	settings::NATLoopbackOffsetList::iterator it;
917	for (off = 1; off < (network.u & ~netmask.u); ++off)
918	{
919
920	if (off == m->offGateway)
921	continue;
922
923	if (off == m->offDhcp)
924	continue;
925
926	bool skip = false;
927	for (it = m->llNATLoopbackOffsetList.begin();
928	it != m->llNATLoopbackOffsetList.end();
929	++it)
930	{
931	if ((*it).u32Offset == off)
932	{
933	skip = true;
934	break;
935	}
936
937	}
938
939	if (!skip)
940	break;
941	}
942
943	if (poff)
944	*poff = off;
945
946	return VINF_SUCCESS;
947	}
948
949	int NATNetwork::recalculateIpv4AddressAssignments()
950	{
951	RTNETADDRIPV4 network, netmask;
952	int rc = RTCidrStrToIPv4(Utf8Str(m->IPv4NetworkCidr.raw()).c_str(),
953	&network,
954	&netmask);
955	AssertRCReturn(rc, rc);
956
957	findFirstAvailableOffset(&m->offGateway);
958	if (m->fNeedDhcpServer)
959	findFirstAvailableOffset(&m->offDhcp);
960
961	/* I don't remember the reason CIDR calculated on the host. */
962	RTNETADDRIPV4 gateway = network;
963	gateway.u += m->offGateway;
964	gateway.u = RT_H2N_U32(gateway.u);
965	char szTmpIp[16];
966	RTStrPrintf(szTmpIp, sizeof(szTmpIp), "%RTnaipv4", gateway);
967	m->IPv4Gateway = szTmpIp;
968
969	if (m->fNeedDhcpServer)
970	{
971	RTNETADDRIPV4 dhcpserver = network;
972	dhcpserver.u += m->offDhcp;
973
974	/* XXX: adding more services should change the math here */
975	RTNETADDRIPV4 dhcplowerip;
976	dhcplowerip.u = RT_H2N_U32(dhcpserver.u + 1);
977	RTNETADDRIPV4 dhcpupperip;
978	dhcpupperip.u = RT_H2N_U32((network.u \| ~netmask.u) - 1);
979
980	dhcpserver.u = RT_H2N_U32(dhcpserver.u);
981	network.u = RT_H2N_U32(network.u);
982
983	RTStrPrintf(szTmpIp, sizeof(szTmpIp), "%RTnaipv4", dhcpserver);
984	m->IPv4DhcpServer = szTmpIp;
985	RTStrPrintf(szTmpIp, sizeof(szTmpIp), "%RTnaipv4", dhcplowerip);
986	m->IPv4DhcpServerLowerIp = szTmpIp;
987	RTStrPrintf(szTmpIp, sizeof(szTmpIp), "%RTnaipv4", dhcpupperip);
988	m->IPv4DhcpServerUpperIp = szTmpIp;
989
990	LogFunc(("network:%RTnaipv4, dhcpserver:%RTnaipv4, dhcplowerip:%RTnaipv4, dhcpupperip:%RTnaipv4\n",
991	network, dhcpserver, dhcplowerip, dhcpupperip));
992	}
993
994	/* we need IPv4NetworkMask for NAT's gw service start */
995	netmask.u = RT_H2N_U32(netmask.u);
996	RTStrPrintf(szTmpIp, 16, "%RTnaipv4", netmask);
997	m->IPv4NetworkMask = szTmpIp;
998
999	LogFlowFunc(("getaway:%RTnaipv4, netmask:%RTnaipv4\n", gateway, netmask));
1000	return VINF_SUCCESS;
1001	}
1002

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source: vbox/trunk/src/VBox/Main/src-server/NATNetworkImpl.cpp@ 48107

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