VirtualBox

source: vbox/trunk/src/VBox/Main/src-server/NATNetworkImpl.cpp@ 70772

Last change on this file since 70772 was 69500, checked in by vboxsync, 7 years ago

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File size: 27.3 KB
Line 
1/* $Id: NATNetworkImpl.cpp 69500 2017-10-28 15:14:05Z vboxsync $ */
2/** @file
3 * INATNetwork implementation.
4 */
5
6/*
7 * Copyright (C) 2013-2017 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 <string>
19#include "NetworkServiceRunner.h"
20#include "DHCPServerImpl.h"
21#include "NATNetworkImpl.h"
22#include "AutoCaller.h"
23#include "Logging.h"
24
25#include <iprt/asm.h>
26#include <iprt/cpp/utils.h>
27#include <iprt/cidr.h>
28#include <iprt/net.h>
29#include <VBox/com/array.h>
30#include <VBox/com/ptr.h>
31#include <VBox/settings.h>
32
33#include "EventImpl.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/////////////////////////////////////////////////////////////////////////////
48struct NATNetwork::Data
49{
50 Data()
51 : pVirtualBox(NULL)
52 , offGateway(0)
53 , offDhcp(0)
54 {
55 }
56 virtual ~Data(){}
57 const ComObjPtr<EventSource> pEventSource;
58#ifdef VBOX_WITH_NAT_SERVICE
59 NATNetworkServiceRunner NATRunner;
60 ComObjPtr<IDHCPServer> dhcpServer;
61#endif
62 /** weak VirtualBox parent */
63 VirtualBox * const pVirtualBox;
64
65 /** NATNetwork settings */
66 settings::NATNetwork s;
67
68 com::Utf8Str IPv4Gateway;
69 com::Utf8Str IPv4NetworkMask;
70 com::Utf8Str IPv4DhcpServer;
71 com::Utf8Str IPv4DhcpServerLowerIp;
72 com::Utf8Str IPv4DhcpServerUpperIp;
73
74 uint32_t offGateway;
75 uint32_t offDhcp;
76};
77
78
79NATNetwork::NATNetwork()
80 : m(NULL)
81{
82}
83
84
85NATNetwork::~NATNetwork()
86{
87}
88
89
90HRESULT NATNetwork::FinalConstruct()
91{
92 return BaseFinalConstruct();
93}
94
95
96void NATNetwork::FinalRelease()
97{
98 uninit();
99
100 BaseFinalRelease();
101}
102
103
104void NATNetwork::uninit()
105{
106 /* Enclose the state transition Ready->InUninit->NotReady */
107 AutoUninitSpan autoUninitSpan(this);
108 if (autoUninitSpan.uninitDone())
109 return;
110 unconst(m->pVirtualBox) = NULL;
111 delete m;
112 m = NULL;
113}
114
115HRESULT NATNetwork::init(VirtualBox *aVirtualBox, com::Utf8Str aName)
116{
117 AutoInitSpan autoInitSpan(this);
118 AssertReturn(autoInitSpan.isOk(), E_FAIL);
119
120 m = new Data();
121 /* share VirtualBox weakly */
122 unconst(m->pVirtualBox) = aVirtualBox;
123 m->s.strNetworkName = aName;
124 m->s.strIPv4NetworkCidr = "10.0.2.0/24";
125 m->offGateway = 1;
126 i_recalculateIPv6Prefix(); /* set m->strIPv6Prefix based on IPv4 */
127
128 settings::NATHostLoopbackOffset off;
129 off.strLoopbackHostAddress = "127.0.0.1";
130 off.u32Offset = (uint32_t)2;
131 m->s.llHostLoopbackOffsetList.push_back(off);
132
133 i_recalculateIpv4AddressAssignments();
134
135 HRESULT hrc = unconst(m->pEventSource).createObject();
136 if (FAILED(hrc)) throw hrc;
137
138 hrc = m->pEventSource->init();
139 if (FAILED(hrc)) throw hrc;
140
141 /* Confirm a successful initialization */
142 autoInitSpan.setSucceeded();
143
144 return S_OK;
145}
146
147
148HRESULT NATNetwork::i_loadSettings(const settings::NATNetwork &data)
149{
150 AutoCaller autoCaller(this);
151 AssertComRCReturnRC(autoCaller.rc());
152
153 AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
154 m->s = data;
155 if ( m->s.strIPv6Prefix.isEmpty()
156 /* also clean up bogus old default */
157 || m->s.strIPv6Prefix == "fe80::/64")
158 i_recalculateIPv6Prefix(); /* set m->strIPv6Prefix based on IPv4 */
159 i_recalculateIpv4AddressAssignments();
160
161 return S_OK;
162}
163
164HRESULT NATNetwork::i_saveSettings(settings::NATNetwork &data)
165{
166 AutoCaller autoCaller(this);
167 if (FAILED(autoCaller.rc())) return autoCaller.rc();
168
169 AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
170 AssertReturn(!m->s.strNetworkName.isEmpty(), E_FAIL);
171 data = m->s;
172
173 m->pVirtualBox->i_onNATNetworkSetting(Bstr(m->s.strNetworkName).raw(),
174 m->s.fEnabled,
175 Bstr(m->s.strIPv4NetworkCidr).raw(),
176 Bstr(m->IPv4Gateway).raw(),
177 m->s.fAdvertiseDefaultIPv6Route,
178 m->s.fNeedDhcpServer);
179
180 /* Notify listerners listening on this network only */
181 fireNATNetworkSettingEvent(m->pEventSource,
182 Bstr(m->s.strNetworkName).raw(),
183 m->s.fEnabled,
184 Bstr(m->s.strIPv4NetworkCidr).raw(),
185 Bstr(m->IPv4Gateway).raw(),
186 m->s.fAdvertiseDefaultIPv6Route,
187 m->s.fNeedDhcpServer);
188
189 return S_OK;
190}
191
192HRESULT NATNetwork::getEventSource(ComPtr<IEventSource> &aEventSource)
193{
194 /* event source is const, no need to lock */
195 m->pEventSource.queryInterfaceTo(aEventSource.asOutParam());
196 return S_OK;
197}
198
199HRESULT NATNetwork::getNetworkName(com::Utf8Str &aNetworkName)
200{
201 AssertReturn(!m->s.strNetworkName.isEmpty(), E_FAIL);
202 aNetworkName = m->s.strNetworkName;
203 return S_OK;
204}
205
206HRESULT NATNetwork::setNetworkName(const com::Utf8Str &aNetworkName)
207{
208 if (m->s.strNetworkName.isEmpty())
209 return setError(E_INVALIDARG,
210 tr("Network name cannot be empty"));
211 {
212 AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
213 if (aNetworkName == m->s.strNetworkName)
214 return S_OK;
215
216 m->s.strNetworkName = aNetworkName;
217 }
218 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
219 HRESULT rc = m->pVirtualBox->i_saveSettings();
220 ComAssertComRCRetRC(rc);
221
222 return S_OK;
223}
224
225HRESULT NATNetwork::getEnabled(BOOL *aEnabled)
226{
227 *aEnabled = m->s.fEnabled;
228
229 i_recalculateIpv4AddressAssignments();
230 return S_OK;
231}
232
233HRESULT NATNetwork::setEnabled(const BOOL aEnabled)
234{
235 {
236 AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
237 if (RT_BOOL(aEnabled) == m->s.fEnabled)
238 return S_OK;
239 m->s.fEnabled = RT_BOOL(aEnabled);
240 }
241
242 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
243 HRESULT rc = m->pVirtualBox->i_saveSettings();
244 ComAssertComRCRetRC(rc);
245 return S_OK;
246}
247
248HRESULT NATNetwork::getGateway(com::Utf8Str &aIPv4Gateway)
249{
250 aIPv4Gateway = m->IPv4Gateway;
251 return S_OK;
252}
253
254HRESULT NATNetwork::getNetwork(com::Utf8Str &aNetwork)
255{
256 aNetwork = m->s.strIPv4NetworkCidr;
257 return S_OK;
258}
259
260
261HRESULT NATNetwork::setNetwork(const com::Utf8Str &aIPv4NetworkCidr)
262{
263 {
264
265 AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
266
267 if (aIPv4NetworkCidr == m->s.strIPv4NetworkCidr)
268 return S_OK;
269
270 /* silently ignore network cidr update for now.
271 * todo: keep internally guest address of port forward rule
272 * as offset from network id.
273 */
274 if (!m->s.mapPortForwardRules4.empty())
275 return S_OK;
276
277
278 m->s.strIPv4NetworkCidr = aIPv4NetworkCidr;
279 i_recalculateIpv4AddressAssignments();
280 }
281
282 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
283 HRESULT rc = m->pVirtualBox->i_saveSettings();
284 ComAssertComRCRetRC(rc);
285 return S_OK;
286}
287
288
289HRESULT NATNetwork::getIPv6Enabled(BOOL *aIPv6Enabled)
290{
291 *aIPv6Enabled = m->s.fIPv6Enabled;
292
293 return S_OK;
294}
295
296
297HRESULT NATNetwork::setIPv6Enabled(const BOOL aIPv6Enabled)
298{
299 {
300 AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
301
302 if (RT_BOOL(aIPv6Enabled) == m->s.fIPv6Enabled)
303 return S_OK;
304
305 m->s.fIPv6Enabled = RT_BOOL(aIPv6Enabled);
306 }
307
308 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
309 HRESULT rc = m->pVirtualBox->i_saveSettings();
310 ComAssertComRCRetRC(rc);
311
312 return S_OK;
313}
314
315
316HRESULT NATNetwork::getIPv6Prefix(com::Utf8Str &aIPv6Prefix)
317{
318 AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
319
320 aIPv6Prefix = m->s.strIPv6Prefix;
321 return S_OK;
322}
323
324HRESULT NATNetwork::setIPv6Prefix(const com::Utf8Str &aIPv6Prefix)
325{
326 {
327 AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
328
329 if (aIPv6Prefix == m->s.strIPv6Prefix)
330 return S_OK;
331
332 /* silently ignore network IPv6 prefix update.
333 * todo: see similar todo in NATNetwork::COMSETTER(Network)(IN_BSTR)
334 */
335 if (!m->s.mapPortForwardRules6.empty())
336 return S_OK;
337
338 m->s.strIPv6Prefix = aIPv6Prefix;
339 }
340
341 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
342 HRESULT rc = m->pVirtualBox->i_saveSettings();
343 ComAssertComRCRetRC(rc);
344
345 return S_OK;
346}
347
348
349HRESULT NATNetwork::getAdvertiseDefaultIPv6RouteEnabled(BOOL *aAdvertiseDefaultIPv6Route)
350{
351 *aAdvertiseDefaultIPv6Route = m->s.fAdvertiseDefaultIPv6Route;
352
353 return S_OK;
354}
355
356
357HRESULT NATNetwork::setAdvertiseDefaultIPv6RouteEnabled(const BOOL aAdvertiseDefaultIPv6Route)
358{
359 {
360 AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
361
362 if (RT_BOOL(aAdvertiseDefaultIPv6Route) == m->s.fAdvertiseDefaultIPv6Route)
363 return S_OK;
364
365 m->s.fAdvertiseDefaultIPv6Route = RT_BOOL(aAdvertiseDefaultIPv6Route);
366
367 }
368
369 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
370 HRESULT rc = m->pVirtualBox->i_saveSettings();
371 ComAssertComRCRetRC(rc);
372
373 return S_OK;
374}
375
376
377HRESULT NATNetwork::getNeedDhcpServer(BOOL *aNeedDhcpServer)
378{
379 *aNeedDhcpServer = m->s.fNeedDhcpServer;
380
381 return S_OK;
382}
383
384HRESULT NATNetwork::setNeedDhcpServer(const BOOL aNeedDhcpServer)
385{
386 {
387 AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
388
389 if (RT_BOOL(aNeedDhcpServer) == m->s.fNeedDhcpServer)
390 return S_OK;
391
392 m->s.fNeedDhcpServer = RT_BOOL(aNeedDhcpServer);
393
394 i_recalculateIpv4AddressAssignments();
395
396 }
397
398 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
399 HRESULT rc = m->pVirtualBox->i_saveSettings();
400 ComAssertComRCRetRC(rc);
401
402 return S_OK;
403}
404
405HRESULT NATNetwork::getLocalMappings(std::vector<com::Utf8Str> &aLocalMappings)
406{
407 AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
408
409 aLocalMappings.resize(m->s.llHostLoopbackOffsetList.size());
410 size_t i = 0;
411 for (settings::NATLoopbackOffsetList::const_iterator it = m->s.llHostLoopbackOffsetList.begin();
412 it != m->s.llHostLoopbackOffsetList.end(); ++it, ++i)
413 {
414 aLocalMappings[i] = Utf8StrFmt("%s=%d",
415 (*it).strLoopbackHostAddress.c_str(),
416 (*it).u32Offset);
417 }
418
419 return S_OK;
420}
421
422HRESULT NATNetwork::addLocalMapping(const com::Utf8Str &aHostId, LONG aOffset)
423{
424 RTNETADDRIPV4 addr, net, mask;
425
426 int rc = RTNetStrToIPv4Addr(Utf8Str(aHostId).c_str(), &addr);
427 if (RT_FAILURE(rc))
428 return E_INVALIDARG;
429
430 /* check against 127/8 */
431 if ((RT_N2H_U32(addr.u) >> IN_CLASSA_NSHIFT) != IN_LOOPBACKNET)
432 return E_INVALIDARG;
433
434 /* check against networkid vs network mask */
435 rc = RTCidrStrToIPv4(Utf8Str(m->s.strIPv4NetworkCidr).c_str(), &net, &mask);
436 if (RT_FAILURE(rc))
437 return E_INVALIDARG;
438
439 if (((net.u + aOffset) & mask.u) != net.u)
440 return E_INVALIDARG;
441
442 settings::NATLoopbackOffsetList::iterator it;
443
444 it = std::find(m->s.llHostLoopbackOffsetList.begin(),
445 m->s.llHostLoopbackOffsetList.end(),
446 aHostId);
447 if (it != m->s.llHostLoopbackOffsetList.end())
448 {
449 if (aOffset == 0) /* erase */
450 m->s.llHostLoopbackOffsetList.erase(it, it);
451 else /* modify */
452 {
453 settings::NATLoopbackOffsetList::iterator it1;
454 it1 = std::find(m->s.llHostLoopbackOffsetList.begin(),
455 m->s.llHostLoopbackOffsetList.end(),
456 (uint32_t)aOffset);
457 if (it1 != m->s.llHostLoopbackOffsetList.end())
458 return E_INVALIDARG; /* this offset is already registered. */
459
460 (*it).u32Offset = aOffset;
461 }
462
463 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
464 return m->pVirtualBox->i_saveSettings();
465 }
466
467 /* injection */
468 it = std::find(m->s.llHostLoopbackOffsetList.begin(),
469 m->s.llHostLoopbackOffsetList.end(),
470 (uint32_t)aOffset);
471
472 if (it != m->s.llHostLoopbackOffsetList.end())
473 return E_INVALIDARG; /* offset is already registered. */
474
475 settings::NATHostLoopbackOffset off;
476 off.strLoopbackHostAddress = aHostId;
477 off.u32Offset = (uint32_t)aOffset;
478 m->s.llHostLoopbackOffsetList.push_back(off);
479
480 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
481 return m->pVirtualBox->i_saveSettings();
482}
483
484
485HRESULT NATNetwork::getLoopbackIp6(LONG *aLoopbackIp6)
486{
487 AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
488
489 *aLoopbackIp6 = m->s.u32HostLoopback6Offset;
490 return S_OK;
491}
492
493
494HRESULT NATNetwork::setLoopbackIp6(LONG aLoopbackIp6)
495{
496 {
497 AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
498
499 if (aLoopbackIp6 < 0)
500 return E_INVALIDARG;
501
502 if (static_cast<uint32_t>(aLoopbackIp6) == m->s.u32HostLoopback6Offset)
503 return S_OK;
504
505 m->s.u32HostLoopback6Offset = aLoopbackIp6;
506 }
507
508 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
509 return m->pVirtualBox->i_saveSettings();
510}
511
512
513HRESULT NATNetwork::getPortForwardRules4(std::vector<com::Utf8Str> &aPortForwardRules4)
514{
515 AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
516 i_getPortForwardRulesFromMap(aPortForwardRules4,
517 m->s.mapPortForwardRules4);
518 return S_OK;
519}
520
521HRESULT NATNetwork::getPortForwardRules6(std::vector<com::Utf8Str> &aPortForwardRules6)
522{
523 AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
524 i_getPortForwardRulesFromMap(aPortForwardRules6,
525 m->s.mapPortForwardRules6);
526 return S_OK;
527}
528
529HRESULT NATNetwork::addPortForwardRule(BOOL aIsIpv6,
530 const com::Utf8Str &aPortForwardRuleName,
531 NATProtocol_T aProto,
532 const com::Utf8Str &aHostIp,
533 USHORT aHostPort,
534 const com::Utf8Str &aGuestIp,
535 USHORT aGuestPort)
536{
537 {
538 AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
539 Utf8Str name = aPortForwardRuleName;
540 Utf8Str proto;
541 settings::NATRule r;
542 settings::NATRulesMap &mapRules = aIsIpv6 ? m->s.mapPortForwardRules6 : m->s.mapPortForwardRules4;
543 switch (aProto)
544 {
545 case NATProtocol_TCP:
546 proto = "tcp";
547 break;
548 case NATProtocol_UDP:
549 proto = "udp";
550 break;
551 default:
552 return E_INVALIDARG;
553 }
554 if (name.isEmpty())
555 name = Utf8StrFmt("%s_[%s]%%%d_[%s]%%%d", proto.c_str(),
556 aHostIp.c_str(), aHostPort,
557 aGuestIp.c_str(), aGuestPort);
558
559 for (settings::NATRulesMap::iterator it = mapRules.begin(); it != mapRules.end(); ++it)
560 {
561 r = it->second;
562 if (it->first == name)
563 return setError(E_INVALIDARG,
564 tr("A NAT rule of this name already exists"));
565 if ( r.strHostIP == aHostIp
566 && r.u16HostPort == aHostPort
567 && r.proto == aProto)
568 return setError(E_INVALIDARG,
569 tr("A NAT rule for this host port and this host IP already exists"));
570 }
571
572 r.strName = name.c_str();
573 r.proto = aProto;
574 r.strHostIP = aHostIp;
575 r.u16HostPort = aHostPort;
576 r.strGuestIP = aGuestIp;
577 r.u16GuestPort = aGuestPort;
578 mapRules.insert(std::make_pair(name, r));
579 }
580 {
581 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
582 HRESULT rc = m->pVirtualBox->i_saveSettings();
583 ComAssertComRCRetRC(rc);
584 }
585
586 m->pVirtualBox->i_onNATNetworkPortForward(Bstr(m->s.strNetworkName).raw(), TRUE, aIsIpv6,
587 Bstr(aPortForwardRuleName).raw(), aProto,
588 Bstr(aHostIp).raw(), aHostPort,
589 Bstr(aGuestIp).raw(), aGuestPort);
590
591 /* Notify listerners listening on this network only */
592 fireNATNetworkPortForwardEvent(m->pEventSource, Bstr(m->s.strNetworkName).raw(), TRUE,
593 aIsIpv6, Bstr(aPortForwardRuleName).raw(), aProto,
594 Bstr(aHostIp).raw(), aHostPort,
595 Bstr(aGuestIp).raw(), aGuestPort);
596
597 return S_OK;
598}
599
600HRESULT NATNetwork::removePortForwardRule(BOOL aIsIpv6, const com::Utf8Str &aPortForwardRuleName)
601{
602 Utf8Str strHostIP;
603 Utf8Str strGuestIP;
604 uint16_t u16HostPort;
605 uint16_t u16GuestPort;
606 NATProtocol_T proto;
607
608 {
609 AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
610 settings::NATRulesMap &mapRules = aIsIpv6 ? m->s.mapPortForwardRules6 : m->s.mapPortForwardRules4;
611 settings::NATRulesMap::iterator it = mapRules.find(aPortForwardRuleName);
612
613 if (it == mapRules.end())
614 return E_INVALIDARG;
615
616 strHostIP = it->second.strHostIP;
617 strGuestIP = it->second.strGuestIP;
618 u16HostPort = it->second.u16HostPort;
619 u16GuestPort = it->second.u16GuestPort;
620 proto = it->second.proto;
621
622 mapRules.erase(it);
623 }
624
625 {
626 AutoWriteLock vboxLock(m->pVirtualBox COMMA_LOCKVAL_SRC_POS);
627 HRESULT rc = m->pVirtualBox->i_saveSettings();
628 ComAssertComRCRetRC(rc);
629 }
630
631 m->pVirtualBox->i_onNATNetworkPortForward(Bstr(m->s.strNetworkName).raw(), FALSE, aIsIpv6,
632 Bstr(aPortForwardRuleName).raw(), proto,
633 Bstr(strHostIP).raw(), u16HostPort,
634 Bstr(strGuestIP).raw(), u16GuestPort);
635
636 /* Notify listerners listening on this network only */
637 fireNATNetworkPortForwardEvent(m->pEventSource, Bstr(m->s.strNetworkName).raw(), FALSE,
638 aIsIpv6, Bstr(aPortForwardRuleName).raw(), proto,
639 Bstr(strHostIP).raw(), u16HostPort,
640 Bstr(strGuestIP).raw(), u16GuestPort);
641 return S_OK;
642}
643
644
645HRESULT NATNetwork::start(const com::Utf8Str &aTrunkType)
646{
647#ifdef VBOX_WITH_NAT_SERVICE
648 if (!m->s.fEnabled) return S_OK;
649 AssertReturn(!m->s.strNetworkName.isEmpty(), E_FAIL);
650
651 m->NATRunner.setOption(NetworkServiceRunner::kNsrKeyNetwork, Utf8Str(m->s.strNetworkName).c_str());
652 m->NATRunner.setOption(NetworkServiceRunner::kNsrKeyTrunkType, Utf8Str(aTrunkType).c_str());
653 m->NATRunner.setOption(NetworkServiceRunner::kNsrIpAddress, Utf8Str(m->IPv4Gateway).c_str());
654 m->NATRunner.setOption(NetworkServiceRunner::kNsrIpNetmask, Utf8Str(m->IPv4NetworkMask).c_str());
655
656 /* No portforwarding rules from command-line, all will be fetched via API */
657
658 if (m->s.fNeedDhcpServer)
659 {
660 /*
661 * Just to as idea... via API (on creation user pass the cidr of network and)
662 * and we calculate it's addreses (mutable?).
663 */
664
665 /*
666 * Configuration and running DHCP server:
667 * 1. find server first createDHCPServer
668 * 2. if return status is E_INVALARG => server already exists just find and start.
669 * 3. if return status neither E_INVALRG nor S_OK => return E_FAIL
670 * 4. if return status S_OK proceed to DHCP server configuration
671 * 5. call setConfiguration() and pass all required parameters
672 * 6. start dhcp server.
673 */
674 HRESULT hrc = m->pVirtualBox->FindDHCPServerByNetworkName(Bstr(m->s.strNetworkName).raw(),
675 m->dhcpServer.asOutParam());
676 switch (hrc)
677 {
678 case E_INVALIDARG:
679 /* server haven't beeen found let create it then */
680 hrc = m->pVirtualBox->CreateDHCPServer(Bstr(m->s.strNetworkName).raw(),
681 m->dhcpServer.asOutParam());
682 if (FAILED(hrc))
683 return E_FAIL;
684 /* breakthrough */
685
686 {
687 LogFunc(("gateway: %s, dhcpserver:%s, dhcplowerip:%s, dhcpupperip:%s\n",
688 m->IPv4Gateway.c_str(),
689 m->IPv4DhcpServer.c_str(),
690 m->IPv4DhcpServerLowerIp.c_str(),
691 m->IPv4DhcpServerUpperIp.c_str()));
692
693 hrc = m->dhcpServer->COMSETTER(Enabled)(true);
694
695 BSTR dhcpip = NULL;
696 BSTR netmask = NULL;
697 BSTR lowerip = NULL;
698 BSTR upperip = NULL;
699
700 m->IPv4DhcpServer.cloneTo(&dhcpip);
701 m->IPv4NetworkMask.cloneTo(&netmask);
702 m->IPv4DhcpServerLowerIp.cloneTo(&lowerip);
703 m->IPv4DhcpServerUpperIp.cloneTo(&upperip);
704 hrc = m->dhcpServer->SetConfiguration(dhcpip,
705 netmask,
706 lowerip,
707 upperip);
708 }
709 case S_OK:
710 break;
711
712 default:
713 return E_FAIL;
714 }
715
716 /* XXX: AddGlobalOption(DhcpOpt_Router,) - enables attachement of DhcpServer to Main. */
717 m->dhcpServer->AddGlobalOption(DhcpOpt_Router, Bstr(m->IPv4Gateway).raw());
718
719 hrc = m->dhcpServer->Start(Bstr(m->s.strNetworkName).raw(), Bstr("").raw(), Bstr(aTrunkType).raw());
720 if (FAILED(hrc))
721 {
722 m->dhcpServer.setNull();
723 return E_FAIL;
724 }
725 }
726
727 if (RT_SUCCESS(m->NATRunner.start(false /* KillProcOnStop */)))
728 {
729 m->pVirtualBox->i_onNATNetworkStartStop(Bstr(m->s.strNetworkName).raw(), TRUE);
730 return S_OK;
731 }
732 /** @todo missing setError()! */
733 return E_FAIL;
734#else
735 NOREF(aTrunkType);
736 ReturnComNotImplemented();
737#endif
738}
739
740HRESULT NATNetwork::stop()
741{
742#ifdef VBOX_WITH_NAT_SERVICE
743 m->pVirtualBox->i_onNATNetworkStartStop(Bstr(m->s.strNetworkName).raw(), FALSE);
744
745 if (!m->dhcpServer.isNull())
746 m->dhcpServer->Stop();
747
748 if (RT_SUCCESS(m->NATRunner.stop()))
749 return S_OK;
750
751 /** @todo missing setError()! */
752 return E_FAIL;
753#else
754 ReturnComNotImplemented();
755#endif
756}
757
758
759void NATNetwork::i_getPortForwardRulesFromMap(std::vector<com::Utf8Str> &aPortForwardRules, settings::NATRulesMap &aRules)
760{
761 aPortForwardRules.resize(aRules.size());
762 size_t i = 0;
763 for (settings::NATRulesMap::const_iterator it = aRules.begin();
764 it != aRules.end(); ++it, ++i)
765 {
766 settings::NATRule r = it->second;
767 aPortForwardRules[i] = Utf8StrFmt("%s:%s:[%s]:%d:[%s]:%d",
768 r.strName.c_str(),
769 (r.proto == NATProtocol_TCP ? "tcp" : "udp"),
770 r.strHostIP.c_str(),
771 r.u16HostPort,
772 r.strGuestIP.c_str(),
773 r.u16GuestPort);
774 }
775}
776
777
778int NATNetwork::i_findFirstAvailableOffset(ADDRESSLOOKUPTYPE addrType, uint32_t *poff)
779{
780 RTNETADDRIPV4 network, netmask;
781
782 int rc = RTCidrStrToIPv4(m->s.strIPv4NetworkCidr.c_str(),
783 &network,
784 &netmask);
785 AssertRCReturn(rc, rc);
786
787 uint32_t off;
788 for (off = 1; off < ~netmask.u; ++off)
789 {
790 bool skip = false;
791 for (settings::NATLoopbackOffsetList::iterator it = m->s.llHostLoopbackOffsetList.begin();
792 it != m->s.llHostLoopbackOffsetList.end();
793 ++it)
794 {
795 if ((*it).u32Offset == off)
796 {
797 skip = true;
798 break;
799 }
800
801 }
802
803 if (skip)
804 continue;
805
806 if (off == m->offGateway)
807 {
808 if (addrType == ADDR_GATEWAY)
809 break;
810 else
811 continue;
812 }
813
814 if (off == m->offDhcp)
815 {
816 if (addrType == ADDR_DHCP)
817 break;
818 else
819 continue;
820 }
821
822 if (!skip)
823 break;
824 }
825
826 if (poff)
827 *poff = off;
828
829 return VINF_SUCCESS;
830}
831
832int NATNetwork::i_recalculateIpv4AddressAssignments()
833{
834 RTNETADDRIPV4 network, netmask;
835 int rc = RTCidrStrToIPv4(m->s.strIPv4NetworkCidr.c_str(),
836 &network,
837 &netmask);
838 AssertRCReturn(rc, rc);
839
840 i_findFirstAvailableOffset(ADDR_GATEWAY, &m->offGateway);
841 if (m->s.fNeedDhcpServer)
842 i_findFirstAvailableOffset(ADDR_DHCP, &m->offDhcp);
843
844 /* I don't remember the reason CIDR calculated on the host. */
845 RTNETADDRIPV4 gateway = network;
846 gateway.u += m->offGateway;
847 gateway.u = RT_H2N_U32(gateway.u);
848 char szTmpIp[16];
849 RTStrPrintf(szTmpIp, sizeof(szTmpIp), "%RTnaipv4", gateway);
850 m->IPv4Gateway = szTmpIp;
851
852 if (m->s.fNeedDhcpServer)
853 {
854 RTNETADDRIPV4 dhcpserver = network;
855 dhcpserver.u += m->offDhcp;
856
857 /* XXX: adding more services should change the math here */
858 RTNETADDRIPV4 dhcplowerip = network;
859 uint32_t offDhcpLowerIp;
860 i_findFirstAvailableOffset(ADDR_DHCPLOWERIP, &offDhcpLowerIp);
861 dhcplowerip.u = RT_H2N_U32(dhcplowerip.u + offDhcpLowerIp);
862
863 RTNETADDRIPV4 dhcpupperip;
864 dhcpupperip.u = RT_H2N_U32((network.u | ~netmask.u) - 1);
865
866 dhcpserver.u = RT_H2N_U32(dhcpserver.u);
867 network.u = RT_H2N_U32(network.u);
868
869 RTStrPrintf(szTmpIp, sizeof(szTmpIp), "%RTnaipv4", dhcpserver);
870 m->IPv4DhcpServer = szTmpIp;
871 RTStrPrintf(szTmpIp, sizeof(szTmpIp), "%RTnaipv4", dhcplowerip);
872 m->IPv4DhcpServerLowerIp = szTmpIp;
873 RTStrPrintf(szTmpIp, sizeof(szTmpIp), "%RTnaipv4", dhcpupperip);
874 m->IPv4DhcpServerUpperIp = szTmpIp;
875
876 LogFunc(("network:%RTnaipv4, dhcpserver:%RTnaipv4, dhcplowerip:%RTnaipv4, dhcpupperip:%RTnaipv4\n",
877 network, dhcpserver, dhcplowerip, dhcpupperip));
878 }
879
880 /* we need IPv4NetworkMask for NAT's gw service start */
881 netmask.u = RT_H2N_U32(netmask.u);
882 RTStrPrintf(szTmpIp, 16, "%RTnaipv4", netmask);
883 m->IPv4NetworkMask = szTmpIp;
884
885 LogFlowFunc(("getaway:%RTnaipv4, netmask:%RTnaipv4\n", gateway, netmask));
886 return VINF_SUCCESS;
887}
888
889
890int NATNetwork::i_recalculateIPv6Prefix()
891{
892 int rc;
893
894 RTNETADDRIPV4 net, mask;
895 rc = RTCidrStrToIPv4(Utf8Str(m->s.strIPv4NetworkCidr).c_str(), &net, &mask);
896 if (RT_FAILURE(rc))
897 return rc;
898
899 net.u = RT_H2N_U32(net.u); /* XXX: fix RTCidrStrToIPv4! */
900
901 /*
902 * [fd17:625c:f037:XXXX::/64] - RFC 4193 (ULA) Locally Assigned
903 * Global ID where XXXX, 16 bit Subnet ID, are two bytes from the
904 * middle of the IPv4 address, e.g. :dead: for 10.222.173.1
905 */
906 RTNETADDRIPV6 prefix;
907 RT_ZERO(prefix);
908
909 prefix.au8[0] = 0xFD;
910 prefix.au8[1] = 0x17;
911
912 prefix.au8[2] = 0x62;
913 prefix.au8[3] = 0x5C;
914
915 prefix.au8[4] = 0xF0;
916 prefix.au8[5] = 0x37;
917
918 prefix.au8[6] = net.au8[1];
919 prefix.au8[7] = net.au8[2];
920
921 char szBuf[32];
922 RTStrPrintf(szBuf, sizeof(szBuf), "%RTnaipv6/64", &prefix);
923
924 m->s.strIPv6Prefix = szBuf;
925 return VINF_SUCCESS;
926}
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