VBoxNetLwipNAT.cpp@ 49110

Last change on this file since 49110 was 49110, checked in by vboxsync, 12 years ago
VBoxNetLwipNAT.cpp: extend listener scope to class level.
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1	/* $Id: VBoxNetLwipNAT.cpp 49110 2013-10-15 08:56:52Z vboxsync $ */
2	/** @file
3	* VBoxNetNAT - NAT Service for connecting to IntNet.
4	*/
5
6	/*
7	* Copyright (C) 2009 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 "winutils.h"
19
20	#include <VBox/com/com.h>
21	#include <VBox/com/listeners.h>
22	#include <VBox/com/string.h>
23	#include <VBox/com/Guid.h>
24	#include <VBox/com/array.h>
25	#include <VBox/com/ErrorInfo.h>
26	#include <VBox/com/errorprint.h>
27	#include <VBox/com/VirtualBox.h>
28	#include <VBox/com/NativeEventQueue.h>
29
30	#include <iprt/net.h>
31	#include <iprt/initterm.h>
32	#include <iprt/alloca.h>
33	#ifndef RT_OS_WINDOWS
34	# include <arpa/inet.h>
35	#endif
36	#include <iprt/err.h>
37	#include <iprt/time.h>
38	#include <iprt/timer.h>
39	#include <iprt/thread.h>
40	#include <iprt/stream.h>
41	#include <iprt/path.h>
42	#include <iprt/param.h>
43	#include <iprt/pipe.h>
44	#include <iprt/getopt.h>
45	#include <iprt/string.h>
46	#include <iprt/mem.h>
47	#include <iprt/message.h>
48	#include <iprt/req.h>
49	#include <iprt/file.h>
50	#include <iprt/semaphore.h>
51	#include <iprt/cpp/utils.h>
52	#define LOG_GROUP LOG_GROUP_NAT_SERVICE
53	#include <VBox/log.h>
54
55	#include <VBox/sup.h>
56	#include <VBox/intnet.h>
57	#include <VBox/intnetinline.h>
58	#include <VBox/vmm/pdmnetinline.h>
59	#include <VBox/vmm/vmm.h>
60	#include <VBox/version.h>
61
62	#ifndef RT_OS_WINDOWS
63	# include <sys/poll.h>
64	# include <sys/socket.h>
65	# include <netinet/in.h>
66	#endif
67
68	#include <vector>
69	#include <string>
70
71	#include "../NetLib/VBoxNetLib.h"
72	#include "../NetLib/VBoxNetBaseService.h"
73	#include "VBoxLwipCore.h"
74
75	extern "C"
76	{
77	/* bunch of LWIP headers */
78	#include "lwip/opt.h"
79	#ifdef LWIP_SOCKET
80	# undef LWIP_SOCKET
81	# define LWIP_SOCKET 0
82	#endif
83	#include "lwip/sys.h"
84	#include "lwip/stats.h"
85	#include "lwip/mem.h"
86	#include "lwip/memp.h"
87	#include "lwip/pbuf.h"
88	#include "lwip/netif.h"
89	#include "lwip/api.h"
90	#include "lwip/tcp_impl.h"
91	#include "ipv6/lwip/ethip6.h"
92	#include "lwip/nd6.h" // for proxy_na_hook
93	#include "lwip/mld6.h"
94	#include "lwip/udp.h"
95	#include "lwip/tcp.h"
96	#include "lwip/tcpip.h"
97	#include "lwip/sockets.h"
98	#include "netif/etharp.h"
99
100	#include "proxy.h"
101	#include "pxremap.h"
102	#include "portfwd.h"
103	}
104
105	#include "../NetLib/VBoxPortForwardString.h"
106
107	static RTGETOPTDEF g_aGetOptDef[] =
108	{
109	{ "--port-forward4", 'p', RTGETOPT_REQ_STRING },
110	{ "--port-forward6", 'P', RTGETOPT_REQ_STRING }
111	};
112
113	typedef struct NATSEVICEPORTFORWARDRULE
114	{
115	PORTFORWARDRULE Pfr;
116	fwspec FWSpec;
117	} NATSEVICEPORTFORWARDRULE, *PNATSEVICEPORTFORWARDRULE;
118
119	typedef std::vector<NATSEVICEPORTFORWARDRULE> VECNATSERVICEPF;
120	typedef VECNATSERVICEPF::iterator ITERATORNATSERVICEPF;
121	typedef VECNATSERVICEPF::const_iterator CITERATORNATSERVICEPF;
122
123
124	class VBoxNetLwipNAT;
125
126
127	class NATNetworkListener
128	{
129	public:
130	NATNetworkListener():m_pNAT(NULL){}
131
132	HRESULT init(VBoxNetLwipNAT *pNAT)
133	{
134	AssertPtrReturn(pNAT, E_INVALIDARG);
135
136	m_pNAT = pNAT;
137	return S_OK;
138	}
139
140	HRESULT init()
141	{
142	m_pNAT = NULL;
143	return S_OK;
144	}
145
146	void uninit() { m_pNAT = NULL; }
147
148	STDMETHOD(HandleEvent)(VBoxEventType_T aEventType, IEvent *pEvent);
149
150	private:
151	VBoxNetLwipNAT *m_pNAT;
152	};
153	typedef ListenerImpl<NATNetworkListener, VBoxNetLwipNAT *> NATNetworkListenerImpl;
154	VBOX_LISTENER_DECLARE(NATNetworkListenerImpl)
155
156
157	class VBoxNetLwipNAT: public VBoxNetBaseService
158	{
159	friend class NATNetworkListener;
160	public:
161	VBoxNetLwipNAT();
162	virtual ~VBoxNetLwipNAT();
163	void usage(){ /* @todo: should be implemented */ };
164	int run();
165	virtual int init(void);
166	/* @todo: when configuration would be really needed */
167	virtual int parseOpt(int rc, const RTGETOPTUNION& getOptVal);
168
169	private:
170	struct proxy_options m_ProxyOptions;
171	struct sockaddr_in m_src4;
172	struct sockaddr_in6 m_src6;
173	/**
174	* place for registered local interfaces.
175	*/
176	ip4_lomap m_lo2off[10];
177	ip4_lomap_desc m_loOptDescriptor;
178
179	uint16_t m_u16Mtu;
180	netif m_LwipNetIf;
181	/* Queues */
182	RTREQQUEUE hReqIntNet;
183	/* thread where we're waiting for a frames, no semaphores needed */
184	RTTHREAD hThrIntNetRecv;
185
186	/* Our NAT network descriptor in Main */
187	ComPtr<INATNetwork> net;
188	ComPtr<NATNetworkListenerImpl> m_listener;
189	STDMETHOD(HandleEvent)(VBoxEventType_T aEventType, IEvent *pEvent);
190
191	RTSEMEVENT hSemSVC;
192	/* Only for debug needs, by default NAT service should load rules from SVC
193	* on startup, and then on sync them on events.
194	*/
195	bool fDontLoadRulesOnStartup;
196	static void onLwipTcpIpInit(void *arg);
197	static void onLwipTcpIpFini(void *arg);
198	static err_t netifInit(netif *pNetif);
199	static err_t netifLinkoutput(netif pNetif, pbuf pBuf);
200	static int intNetThreadRecv(RTTHREAD, void *);
201	static void vboxNetLwipNATProcessXmit(void);
202
203	VECNATSERVICEPF m_vecPortForwardRule4;
204	VECNATSERVICEPF m_vecPortForwardRule6;
205
206	static int natServicePfRegister(NATSEVICEPORTFORWARDRULE& natServicePf);
207	static int natServiceProcessRegisteredPf(VECNATSERVICEPF& vecPf);
208	};
209
210
211	static VBoxNetLwipNAT *g_pLwipNat;
212
213	STDMETHODIMP NATNetworkListener::HandleEvent(VBoxEventType_T aEventType, IEvent *pEvent)
214	{
215	if (m_pNAT)
216	return m_pNAT->HandleEvent(aEventType, pEvent);
217	else
218	return E_FAIL;
219	}
220
221
222
223	STDMETHODIMP VBoxNetLwipNAT::HandleEvent(VBoxEventType_T aEventType,
224	IEvent *pEvent)
225	{
226	HRESULT hrc = S_OK;
227	switch (aEventType)
228	{
229	case VBoxEventType_OnNATNetworkSetting:
230	{
231	ComPtr<INATNetworkSettingEvent> evSettings(pEvent);
232	// XXX: only handle IPv6 default route for now
233
234	if (!m_ProxyOptions.ipv6_enabled)
235	{
236	break;
237	}
238
239	BOOL fIPv6DefaultRoute = FALSE;
240	hrc = evSettings->COMGETTER(AdvertiseDefaultIPv6RouteEnabled)(&fIPv6DefaultRoute);
241	AssertReturn(SUCCEEDED(hrc), hrc);
242
243	if (m_ProxyOptions.ipv6_defroute == fIPv6DefaultRoute)
244	{
245	break;
246	}
247
248	// XXX: TODO: should prod rtadvd for immediate unsolicited
249	// advertisement with new router lifetime
250	m_ProxyOptions.ipv6_defroute = fIPv6DefaultRoute;
251
252	break;
253	}
254
255	case VBoxEventType_OnNATNetworkPortForward:
256	{
257	com::Bstr name, strHostAddr, strGuestAddr;
258	LONG lHostPort, lGuestPort;
259	BOOL fCreateFW, fIPv6FW;
260	NATProtocol_T proto = NATProtocol_TCP;
261
262
263	ComPtr<INATNetworkPortForwardEvent> pfEvt = pEvent;
264
265	hrc = pfEvt->COMGETTER(Name)(name.asOutParam());
266	AssertReturn(SUCCEEDED(hrc), hrc);
267
268	hrc = pfEvt->COMGETTER(Proto)(&proto);
269	AssertReturn(SUCCEEDED(hrc), hrc);
270
271	hrc = pfEvt->COMGETTER(HostIp)(strHostAddr.asOutParam());
272	AssertReturn(SUCCEEDED(hrc), hrc);
273
274	hrc = pfEvt->COMGETTER(HostPort)(&lHostPort);
275	AssertReturn(SUCCEEDED(hrc), hrc);
276
277	hrc = pfEvt->COMGETTER(GuestIp)(strGuestAddr.asOutParam());
278	AssertReturn(SUCCEEDED(hrc), hrc);
279
280	hrc = pfEvt->COMGETTER(GuestPort)(&lGuestPort);
281	AssertReturn(SUCCEEDED(hrc), hrc);
282
283	hrc = pfEvt->COMGETTER(Create)(&fCreateFW);
284	AssertReturn(SUCCEEDED(hrc), hrc);
285
286	hrc = pfEvt->COMGETTER(Ipv6)(&fIPv6FW);
287	AssertReturn(SUCCEEDED(hrc), hrc);
288
289	VECNATSERVICEPF& rules = (fIPv6FW ?
290	m_vecPortForwardRule6 :
291	m_vecPortForwardRule4);
292
293	NATSEVICEPORTFORWARDRULE r;
294
295	RT_ZERO(r);
296
297	if (name.length() > RT_ELEMENTS(r.Pfr.aszPfrName))
298	{
299	hrc = E_INVALIDARG;
300	goto port_forward_done;
301	}
302
303	switch (proto)
304	{
305	case NATProtocol_TCP:
306	r.Pfr.iPfrProto = IPPROTO_TCP;
307	break;
308	case NATProtocol_UDP:
309	r.Pfr.iPfrProto = IPPROTO_UDP;
310	break;
311	default:
312	goto port_forward_done;
313	}
314
315
316	RTStrPrintf(r.Pfr.aszPfrName, RT_ELEMENTS(r.Pfr.aszPfrName),
317	"%s",
318	com::Utf8Str(name).c_str());
319
320	RTStrPrintf(r.Pfr.aszPfrHostAddr, RT_ELEMENTS(r.Pfr.aszPfrHostAddr),
321	"%s",
322	com::Utf8Str(strHostAddr).c_str());
323
324	/* XXX: limits should be checked */
325	r.Pfr.u16PfrHostPort = (uint16_t)lHostPort;
326
327	RTStrPrintf(r.Pfr.aszPfrGuestAddr, RT_ELEMENTS(r.Pfr.aszPfrGuestAddr),
328	"%s",
329	com::Utf8Str(strGuestAddr).c_str());
330
331	/* XXX: limits should be checked */
332	r.Pfr.u16PfrGuestPort = (uint16_t)lGuestPort;
333
334	if (fCreateFW) /* Addition */
335	{
336	rules.push_back(r);
337
338	natServicePfRegister(rules.back());
339	}
340	else /* Deletion */
341	{
342	ITERATORNATSERVICEPF it;
343	for (it = rules.begin(); it != rules.end(); ++it)
344	{
345	/* compare */
346	NATSEVICEPORTFORWARDRULE& natFw = *it;
347	if ( natFw.Pfr.iPfrProto == r.Pfr.iPfrProto
348	&& natFw.Pfr.u16PfrHostPort == r.Pfr.u16PfrHostPort
349	&& (strncmp(natFw.Pfr.aszPfrHostAddr, r.Pfr.aszPfrHostAddr, INET6_ADDRSTRLEN) == 0)
350	&& natFw.Pfr.u16PfrGuestPort == r.Pfr.u16PfrGuestPort
351	&& (strncmp(natFw.Pfr.aszPfrGuestAddr, r.Pfr.aszPfrGuestAddr, INET6_ADDRSTRLEN) == 0))
352	{
353	fwspec pFwCopy = (fwspec )RTMemAllocZ(sizeof(fwspec));
354	if (!pFwCopy)
355	{
356	break;
357	}
358	memcpy(pFwCopy, &natFw.FWSpec, sizeof(fwspec));
359
360	/* We shouldn't care about pFwCopy this memory will be freed when
361	* will message will arrive to the destination.
362	*/
363	portfwd_rule_del(pFwCopy);
364
365	rules.erase(it);
366	break;
367	}
368	} /* loop over vector elements */
369	} /* condition add or delete */
370	port_forward_done:
371	/* clean up strings */
372	name.setNull();
373	strHostAddr.setNull();
374	strGuestAddr.setNull();
375	break;
376	}
377	}
378	return hrc;
379	}
380
381
382	void VBoxNetLwipNAT::onLwipTcpIpInit(void* arg)
383	{
384	AssertPtrReturnVoid(arg);
385	VBoxNetLwipNAT pNat = static_cast<VBoxNetLwipNAT >(arg);
386
387	HRESULT hrc = com::Initialize();
388	Assert(!FAILED(hrc));
389
390	proxy_arp_hook = pxremap_proxy_arp;
391	proxy_ip4_divert_hook = pxremap_ip4_divert;
392
393	proxy_na_hook = pxremap_proxy_na;
394	proxy_ip6_divert_hook = pxremap_ip6_divert;
395
396	/* lwip thread */
397	RTNETADDRIPV4 IpNetwork;
398	IpNetwork.u = g_pLwipNat->m_Ipv4Address.u & g_pLwipNat->m_Ipv4Netmask.u;
399
400	ip_addr LwipIpAddr, LwipIpNetMask, LwipIpNetwork;
401
402	memcpy(&LwipIpAddr, &g_pLwipNat->m_Ipv4Address, sizeof(ip_addr));
403	memcpy(&LwipIpNetMask, &g_pLwipNat->m_Ipv4Netmask, sizeof(ip_addr));
404	memcpy(&LwipIpNetwork, &IpNetwork, sizeof(ip_addr));
405
406	netif pNetif = netif_add(&g_pLwipNat->m_LwipNetIf / Lwip Interface */,
407	&LwipIpAddr /* IP address*/,
408	&LwipIpNetMask /* Network mask */,
409	&LwipIpAddr /* gateway address, @todo: is self IP acceptable? */,
410	g_pLwipNat /* state */,
411	VBoxNetLwipNAT::netifInit /* netif_init_fn */,
412	lwip_tcpip_input /* netif_input_fn */);
413
414	AssertPtrReturnVoid(pNetif);
415
416	netif_set_up(pNetif);
417	netif_set_link_up(pNetif);
418
419	if (pNat->m_ProxyOptions.ipv6_enabled) {
420	/*
421	* XXX: lwIP currently only ever calls mld6_joingroup() in
422	* nd6_tmr() for fresh tentative addresses, which is a wrong place
423	* to do it - but I'm not keen on fixing this properly for now
424	* (with correct handling of interface up and down transitions,
425	* etc). So stick it here as a kludge.
426	*/
427	for (int i = 0; i <= 1; ++i) {
428	ip6_addr_t *paddr = netif_ip6_addr(pNetif, i);
429
430	ip6_addr_t solicited_node_multicast_address;
431	ip6_addr_set_solicitednode(&solicited_node_multicast_address,
432	paddr->addr[3]);
433	mld6_joingroup(paddr, &solicited_node_multicast_address);
434	}
435
436	/*
437	* XXX: We must join the solicited-node multicast for the
438	* addresses we do IPv6 NA-proxy for. We map IPv6 loopback to
439	* proxy address + 1. We only need the low 24 bits, and those are
440	* fixed.
441	*/
442	{
443	ip6_addr_t solicited_node_multicast_address;
444
445	ip6_addr_set_solicitednode(&solicited_node_multicast_address,
446	/* last 24 bits of the address */
447	PP_HTONL(0x00000002));
448	mld6_netif_joingroup(pNetif, &solicited_node_multicast_address);
449	}
450	}
451
452	proxy_init(&g_pLwipNat->m_LwipNetIf, &g_pLwipNat->m_ProxyOptions);
453
454	natServiceProcessRegisteredPf(g_pLwipNat->m_vecPortForwardRule4);
455	natServiceProcessRegisteredPf(g_pLwipNat->m_vecPortForwardRule6);
456	}
457
458
459	void VBoxNetLwipNAT::onLwipTcpIpFini(void* arg)
460	{
461	AssertPtrReturnVoid(arg);
462	VBoxNetLwipNAT pThis = (VBoxNetLwipNAT )arg;
463
464	/* XXX: proxy finalization */
465	netif_set_link_down(&g_pLwipNat->m_LwipNetIf);
466	netif_set_down(&g_pLwipNat->m_LwipNetIf);
467	netif_remove(&g_pLwipNat->m_LwipNetIf);
468
469	}
470
471	/*
472	* Callback for netif_add() to initialize the interface.
473	*/
474	err_t VBoxNetLwipNAT::netifInit(netif *pNetif)
475	{
476	err_t rcLwip = ERR_OK;
477
478	AssertPtrReturn(pNetif, ERR_ARG);
479
480	VBoxNetLwipNAT pNat = static_cast<VBoxNetLwipNAT >(pNetif->state);
481	AssertPtrReturn(pNat, ERR_ARG);
482
483	LogFlowFunc(("ENTER: pNetif[%c%c%d]\n", pNetif->name[0], pNetif->name[1], pNetif->num));
484	/* validity */
485	AssertReturn( pNetif->name[0] == 'N'
486	&& pNetif->name[1] == 'T', ERR_ARG);
487
488
489	pNetif->hwaddr_len = sizeof(RTMAC);
490	memcpy(pNetif->hwaddr, &pNat->m_MacAddress, sizeof(RTMAC));
491
492	pNat->m_u16Mtu = 1500; // XXX: FIXME
493	pNetif->mtu = pNat->m_u16Mtu;
494
495	pNetif->flags = NETIF_FLAG_BROADCAST
496	\| NETIF_FLAG_ETHARP /* Don't bother driver with ARP and let Lwip resolve ARP handling */
497	\| NETIF_FLAG_ETHERNET; /* Lwip works with ethernet too */
498
499	pNetif->linkoutput = netifLinkoutput; /* ether-level-pipe */
500	pNetif->output = lwip_etharp_output; /* ip-pipe */
501
502	if (pNat->m_ProxyOptions.ipv6_enabled) {
503	pNetif->output_ip6 = ethip6_output;
504
505	/* IPv6 link-local address in slot 0 */
506	netif_create_ip6_linklocal_address(pNetif, /* :from_mac_48bit */ 1);
507	netif_ip6_addr_set_state(pNetif, 0, IP6_ADDR_PREFERRED); // skip DAD
508
509	/*
510	* RFC 4193 Locally Assigned Global ID (ULA) in slot 1
511	* [fd17:625c:f037:XXXX::1] where XXXX, 16 bit Subnet ID, are two
512	* bytes from the middle of the IPv4 address, e.g. :dead: for
513	* 10.222.173.1
514	*/
515	u8_t nethi = ip4_addr2(&pNetif->ip_addr);
516	u8_t netlo = ip4_addr3(&pNetif->ip_addr);
517
518	ip6_addr_t *paddr = netif_ip6_addr(pNetif, 1);
519	IP6_ADDR(paddr, 0, 0xFD, 0x17, 0x62, 0x5C);
520	IP6_ADDR(paddr, 1, 0xF0, 0x37, nethi, netlo);
521	IP6_ADDR(paddr, 2, 0x00, 0x00, 0x00, 0x00);
522	IP6_ADDR(paddr, 3, 0x00, 0x00, 0x00, 0x01);
523	netif_ip6_addr_set_state(pNetif, 1, IP6_ADDR_PREFERRED);
524
525	#if LWIP_IPV6_SEND_ROUTER_SOLICIT
526	pNetif->rs_count = 0;
527	#endif
528	}
529
530	LogFlowFunc(("LEAVE: %d\n", rcLwip));
531	return rcLwip;
532	}
533
534
535	/**
536	* Intnet-recv thread
537	*/
538	int VBoxNetLwipNAT::intNetThreadRecv(RTTHREAD, void *)
539	{
540	int rc = VINF_SUCCESS;
541
542	/* 1. initialization and connection */
543	HRESULT hrc = com::Initialize();
544	if (FAILED(hrc))
545	return RTMsgErrorExit(RTEXITCODE_FAILURE, "Failed to initialize COM!");
546
547	/* Well we're ready */
548	PINTNETRINGBUF pRingBuf = &g_pLwipNat->m_pIfBuf->Recv;
549
550	for (;;)
551	{
552	/*
553	* Wait for a packet to become available.
554	*/
555	/* 2. waiting for request for */
556	rc = g_pLwipNat->waitForIntNetEvent(2000);
557	if (RT_FAILURE(rc))
558	{
559	if (rc == VERR_TIMEOUT \|\| rc == VERR_INTERRUPTED)
560	{
561	/* do we want interrupt anyone ??? */
562	continue;
563	}
564	LogRel(("VBoxNetNAT: waitForIntNetEvent returned %Rrc\n", rc));
565	AssertRCReturn(rc,ERR_IF);
566	}
567
568	/*
569	* Process the receive buffer.
570	*/
571	PCINTNETHDR pHdr;
572
573	while ((pHdr = IntNetRingGetNextFrameToRead(pRingBuf)) != NULL)
574	{
575	uint8_t const u8Type = pHdr->u8Type;
576	size_t cbFrame = pHdr->cbFrame;
577	uint8_t *pu8Frame = NULL;
578	pbuf *pPbufHdr = NULL;
579	pbuf *pPbuf = NULL;
580	switch (u8Type)
581	{
582
583	case INTNETHDR_TYPE_FRAME:
584	/* @todo:should it be really here?
585	* Well well well, we're accessing lwip code here
586	*/
587	pPbufHdr = pPbuf = pbuf_alloc(PBUF_RAW, pHdr->cbFrame, PBUF_POOL);
588	if (!pPbuf)
589	{
590	LogRel(("NAT: Can't allocate send buffer cbFrame=%u\n", cbFrame));
591	break;
592	}
593	Assert(pPbufHdr->tot_len == cbFrame);
594	pu8Frame = (uint8_t *)IntNetHdrGetFramePtr(pHdr, g_pLwipNat->m_pIfBuf);
595	while(pPbuf)
596	{
597	memcpy(pPbuf->payload, pu8Frame, pPbuf->len);
598	pu8Frame += pPbuf->len;
599	pPbuf = pPbuf->next;
600	}
601
602	g_pLwipNat->m_LwipNetIf.input(pPbufHdr, &g_pLwipNat->m_LwipNetIf);
603
604	AssertReleaseRC(rc);
605	break;
606	case INTNETHDR_TYPE_GSO:
607	{
608	PCPDMNETWORKGSO pGso = IntNetHdrGetGsoContext(pHdr,
609	g_pLwipNat->m_pIfBuf);
610	if (!PDMNetGsoIsValid(pGso, cbFrame,
611	cbFrame - sizeof(PDMNETWORKGSO)))
612	break;
613	cbFrame -= sizeof(PDMNETWORKGSO);
614	uint8_t abHdrScratch[256];
615	uint32_t const cSegs = PDMNetGsoCalcSegmentCount(pGso,
616	cbFrame);
617	for (size_t iSeg = 0; iSeg < cSegs; iSeg++)
618	{
619	uint32_t cbSegFrame;
620	void *pvSegFrame =
621	PDMNetGsoCarveSegmentQD(pGso,
622	(uint8_t *)(pGso + 1),
623	cbFrame,
624	abHdrScratch,
625	iSeg,
626	cSegs,
627	&cbSegFrame);
628
629	pPbuf = pbuf_alloc(PBUF_RAW, cbSegFrame, PBUF_POOL);
630	if (!pPbuf)
631	{
632	LogRel(("NAT: Can't allocate send buffer cbFrame=%u\n", cbSegFrame));
633	break;
634	}
635	Assert( !pPbuf->next
636	&& pPbuf->len == cbSegFrame);
637	memcpy(pPbuf->payload, pvSegFrame, cbSegFrame);
638	g_pLwipNat->m_LwipNetIf.input(pPbuf, &g_pLwipNat->m_LwipNetIf);
639
640	}
641
642	}
643	break;
644	case INTNETHDR_TYPE_PADDING:
645	break;
646	default:
647	STAM_REL_COUNTER_INC(&g_pLwipNat->m_pIfBuf->cStatBadFrames);
648	break;
649	}
650	IntNetRingSkipFrame(&g_pLwipNat->m_pIfBuf->Recv);
651
652	} /* loop */
653	}
654	/* 3. deinitilization and termination */
655	LogFlowFuncLeaveRC(rc);
656	return rc;
657	}
658
659
660	/**
661	*
662	*/
663	void VBoxNetLwipNAT::vboxNetLwipNATProcessXmit()
664	{
665	int rc = VINF_SUCCESS;
666	INTNETIFSENDREQ SendReq;
667	SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
668	SendReq.Hdr.cbReq = sizeof(SendReq);
669	SendReq.pSession = g_pLwipNat->m_pSession;
670	SendReq.hIf = g_pLwipNat->m_hIf;
671	rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_INTNET_IF_SEND, 0, &SendReq.Hdr);
672	AssertRC(rc);
673	}
674
675
676	err_t VBoxNetLwipNAT::netifLinkoutput(netif pNetif, pbuf pPBuf)
677	{
678	int rc = VINF_SUCCESS;
679	err_t rcLwip = ERR_OK;
680	AssertPtrReturn(pNetif, ERR_ARG);
681	AssertPtrReturn(pPBuf, ERR_ARG);
682	AssertReturn((void *)g_pLwipNat == pNetif->state, ERR_ARG);
683	LogFlowFunc(("ENTER: pNetif[%c%c%d], pPbuf:%p\n",
684	pNetif->name[0],
685	pNetif->name[1],
686	pNetif->num,
687	pPBuf));
688
689	/*
690	* We're on the lwip thread ...
691	* try accure Xmit lock (actually we DO accure the lock ... )
692	* 1. we've entered csXmit so we should create frame
693	* 1.a. Frame creation success see 2.
694	* 1.b. (hm ... what about queue processing in place)
695	* 1.c. 2nd attempt create frame
696	* 1.d. Unlock the Xmit
697	* 1.e. goto BUSY.1
698	* 2. Copy pbuf to the frame
699	* 3. Send
700	* 4. leave csXmit & return.
701	*
702	* @todo: perhaps we can use it for optimization,
703	* e.g. drop UDP and reoccure lock on TCP NOTE: now BUSY is unachievable!
704	* Otherwise (BUSY)
705	* 1. Unbuffered (drop)
706	* (buffered)
707	* 1. Copy pbuf to entermediate buffer.
708	* 2. Add call buffer to the queue
709	* 3. return.
710	*/
711	/* see p.1 */
712	rc = VINF_SUCCESS;
713	PINTNETHDR pHdr = NULL;
714	uint8_t *pu8Frame = NULL;
715	int offFrame = 0;
716	int idxSg = 0;
717	struct pbuf *pPBufPtr = pPBuf;
718	/* Allocate frame, and pad it if required. */
719	rc = IntNetRingAllocateFrame(&g_pLwipNat->m_pIfBuf->Send, pPBuf->tot_len, &pHdr, (void **)&pu8Frame);
720	if (RT_SUCCESS(rc))
721	{
722	/* see p. 2 */
723	while (pPBufPtr)
724	{
725	memcpy(&pu8Frame[offFrame], pPBufPtr->payload, pPBufPtr->len);
726	offFrame += pPBufPtr->len;
727	pPBufPtr = pPBufPtr->next;
728	}
729	}
730	if (RT_FAILURE(rc))
731	{
732	/* Could it be that some frames are still in the ring buffer */
733	/* 1.c */
734	AssertMsgFailed(("Debug Me!"));
735	}
736
737	/* Commit - what really this function do */
738	IntNetRingCommitFrameEx(&g_pLwipNat->m_pIfBuf->Send, pHdr, pPBuf->tot_len);
739
740	g_pLwipNat->vboxNetLwipNATProcessXmit();
741
742	AssertRCReturn(rc, ERR_IF);
743	LogFlowFunc(("LEAVE: %d\n", rcLwip));
744	return rcLwip;
745	}
746
747
748	VBoxNetLwipNAT::VBoxNetLwipNAT()
749	{
750	LogFlowFuncEnter();
751
752	m_ProxyOptions.ipv6_enabled = 0;
753	m_ProxyOptions.ipv6_defroute = 0;
754	m_ProxyOptions.tftp_root = NULL;
755	m_ProxyOptions.src4 = NULL;
756	m_ProxyOptions.src6 = NULL;
757	memset(&m_src4, 0, sizeof(m_src4));
758	memset(&m_src6, 0, sizeof(m_src6));
759	m_src4.sin_family = AF_INET;
760	m_src6.sin6_family = AF_INET6;
761	#if HAVE_SA_LEN
762	m_src4.sin_len = sizeof(m_src4);
763	m_src6.sin6_len = sizeof(m_src6);
764	#endif
765
766	m_LwipNetIf.name[0] = 'N';
767	m_LwipNetIf.name[1] = 'T';
768	m_MacAddress.au8[0] = 0x52;
769	m_MacAddress.au8[1] = 0x54;
770	m_MacAddress.au8[2] = 0;
771	m_MacAddress.au8[3] = 0x12;
772	m_MacAddress.au8[4] = 0x35;
773	m_MacAddress.au8[5] = 0;
774	m_Ipv4Address.u = RT_MAKE_U32_FROM_U8( 10, 0, 2, 2); // NB: big-endian
775	m_Ipv4Netmask.u = RT_H2N_U32_C(0xffffff00);
776
777	fDontLoadRulesOnStartup = false;
778
779	for(unsigned int i = 0; i < RT_ELEMENTS(g_aGetOptDef); ++i)
780	m_vecOptionDefs.push_back(&g_aGetOptDef[i]);
781
782	m_enmTrunkType = kIntNetTrunkType_SrvNat;
783
784	LogFlowFuncLeave();
785	}
786
787
788	VBoxNetLwipNAT::~VBoxNetLwipNAT()
789	{
790	if (m_ProxyOptions.tftp_root != NULL)
791	{
792	RTStrFree((char *)m_ProxyOptions.tftp_root);
793	}
794	}
795
796
797	int VBoxNetLwipNAT::natServicePfRegister(NATSEVICEPORTFORWARDRULE& natPf)
798	{
799	int lrc = 0;
800	int rc = VINF_SUCCESS;
801	int socketSpec = SOCK_STREAM;
802	char *pszHostAddr;
803	int sockFamily = (natPf.Pfr.fPfrIPv6 ? PF_INET6 : PF_INET);
804
805	switch(natPf.Pfr.iPfrProto)
806	{
807	case IPPROTO_TCP:
808	socketSpec = SOCK_STREAM;
809	break;
810	case IPPROTO_UDP:
811	socketSpec = SOCK_DGRAM;
812	break;
813	default:
814	return VERR_IGNORED; /* Ah, just ignore the garbage */
815	}
816
817	pszHostAddr = natPf.Pfr.aszPfrHostAddr;
818
819	/* XXX: workaround for inet_pton and an empty ipv4 address
820	* in rule declaration.
821	*/
822	if ( sockFamily == PF_INET
823	&& pszHostAddr[0] == 0)
824	pszHostAddr = (char )"0.0.0.0"; / XXX: fix it! without type cast */
825
826
827	lrc = fwspec_set(&natPf.FWSpec,
828	sockFamily,
829	socketSpec,
830	pszHostAddr,
831	natPf.Pfr.u16PfrHostPort,
832	natPf.Pfr.aszPfrGuestAddr,
833	natPf.Pfr.u16PfrGuestPort);
834
835	AssertReturn(!lrc, VERR_IGNORED);
836
837	fwspec pFwCopy = (fwspec )RTMemAllocZ(sizeof(fwspec));
838	AssertPtrReturn(pFwCopy, VERR_IGNORED);
839
840	/*
841	* We need pass the copy, because we can't be sure
842	* how much this pointer will be valid in LWIP environment.
843	*/
844	memcpy(pFwCopy, &natPf.FWSpec, sizeof(fwspec));
845
846	lrc = portfwd_rule_add(pFwCopy);
847
848	AssertReturn(!lrc, VERR_IGNORED);
849
850	return VINF_SUCCESS;
851	}
852
853
854	int VBoxNetLwipNAT::natServiceProcessRegisteredPf(VECNATSERVICEPF& vecRules){
855	ITERATORNATSERVICEPF it;
856	for (it = vecRules.begin();
857	it != vecRules.end(); ++it)
858	{
859	int rc = natServicePfRegister((*it));
860	if (RT_FAILURE(rc))
861	{
862	LogRel(("PF: %s is ignored\n", (*it).Pfr.aszPfrName));
863	continue;
864	}
865	}
866	return VINF_SUCCESS;
867	}
868
869
870	int VBoxNetLwipNAT::init()
871	{
872	com::Bstr bstr;
873	int rc = VINF_SUCCESS;
874	LogFlowFuncEnter();
875
876
877	/* virtualbox initialized in super class */
878
879	HRESULT hrc;
880	hrc = virtualbox->FindNATNetworkByName(com::Bstr(m_Network.c_str()).raw(),
881	net.asOutParam());
882	AssertComRCReturn(hrc, VERR_NOT_FOUND);
883
884	BOOL fIPv6Enabled = FALSE;
885	hrc = net->COMGETTER(IPv6Enabled)(&fIPv6Enabled);
886	AssertComRCReturn(hrc, VERR_NOT_FOUND);
887
888	BOOL fIPv6DefaultRoute = FALSE;
889	if (fIPv6Enabled)
890	{
891	hrc = net->COMGETTER(AdvertiseDefaultIPv6RouteEnabled)(&fIPv6DefaultRoute);
892	AssertComRCReturn(hrc, VERR_NOT_FOUND);
893	}
894
895	m_ProxyOptions.ipv6_enabled = fIPv6Enabled;
896	m_ProxyOptions.ipv6_defroute = fIPv6DefaultRoute;
897
898	#if !defined(RT_OS_WINDOWS)
899	/* XXX: Temporaly disabled this code on Windows for further debugging */
900	ComPtr<IEventSource> pES;
901
902	hrc = net->COMGETTER(EventSource)(pES.asOutParam());
903	AssertComRC(hrc);
904
905	ComObjPtr<NATNetworkListenerImpl> listener;
906	hrc = listener.createObject();
907	AssertComRCReturn(hrc, VERR_INTERNAL_ERROR);
908
909	hrc = listener->init(new NATNetworkListener(), this);
910	AssertComRCReturn(hrc, VERR_INTERNAL_ERROR);
911
912	com::SafeArray<VBoxEventType_T> events;
913	events.push_back(VBoxEventType_OnNATNetworkPortForward);
914	events.push_back(VBoxEventType_OnNATNetworkSetting);
915
916	hrc = pES->RegisterListener(listener, ComSafeArrayAsInParam(events), true);
917	AssertComRCReturn(hrc, VERR_INTERNAL_ERROR);
918
919	m_listener = listener;
920	#endif
921
922	com::Bstr bstrSourceIp4Key = com::BstrFmt("NAT/%s/SourceIp4",m_Network.c_str());
923	com::Bstr bstrSourceIpX;
924	RTNETADDRIPV4 addr;
925	hrc = virtualbox->GetExtraData(bstrSourceIp4Key.raw(), bstrSourceIpX.asOutParam());
926	if (SUCCEEDED(hrc))
927	{
928	rc = RTNetStrToIPv4Addr(com::Utf8Str(bstrSourceIpX).c_str(), &addr);
929	if (RT_SUCCESS(rc))
930	{
931	RT_ZERO(m_src4);
932
933	m_src4.sin_addr.s_addr = addr.u;
934	m_ProxyOptions.src4 = &m_src4;
935
936	bstrSourceIpX.setNull();
937	}
938	}
939
940	if (!fDontLoadRulesOnStartup)
941	{
942	/* XXX: extract function and do not duplicate */
943	com::SafeArray<BSTR> rules;
944	hrc = net->COMGETTER(PortForwardRules4)(ComSafeArrayAsOutParam(rules));
945	Assert(SUCCEEDED(hrc));
946
947	size_t idxRules = 0;
948	for (idxRules = 0; idxRules < rules.size(); ++idxRules)
949	{
950	Log(("%d-rule: %ls\n", idxRules, rules[idxRules]));
951	NATSEVICEPORTFORWARDRULE Rule;
952	RT_ZERO(Rule);
953	rc = netPfStrToPf(com::Utf8Str(rules[idxRules]).c_str(), 0, &Rule.Pfr);
954	AssertRC(rc);
955	m_vecPortForwardRule4.push_back(Rule);
956	}
957
958	rules.setNull();
959	hrc = net->COMGETTER(PortForwardRules6)(ComSafeArrayAsOutParam(rules));
960	Assert(SUCCEEDED(hrc));
961
962	for (idxRules = 0; idxRules < rules.size(); ++idxRules)
963	{
964	Log(("%d-rule: %ls\n", idxRules, rules[idxRules]));
965	NATSEVICEPORTFORWARDRULE Rule;
966	netPfStrToPf(com::Utf8Str(rules[idxRules]).c_str(), 1, &Rule.Pfr);
967	m_vecPortForwardRule6.push_back(Rule);
968	}
969	} /* if (!fDontLoadRulesOnStartup) */
970
971	com::SafeArray<BSTR> strs;
972	int count_strs;
973	hrc = net->COMGETTER(LocalMappings)(ComSafeArrayAsOutParam(strs));
974	if ( SUCCEEDED(hrc)
975	&& (count_strs = strs.size()))
976	{
977	unsigned int j = 0;
978	int i;
979
980	for (i = 0; i < count_strs && j < RT_ELEMENTS(m_lo2off); ++i)
981	{
982	char aszAddr[17];
983	RTNETADDRIPV4 ip4addr;
984	char *pszTerm;
985	uint32_t u32Off;
986	com::Utf8Str strLo2Off(strs[i]);
987	const char *pszLo2Off = strLo2Off.c_str();
988
989	RT_ZERO(aszAddr);
990
991	pszTerm = RTStrStr(pszLo2Off, "=");
992
993	if ( !pszTerm
994	\|\| (pszTerm - pszLo2Off) >= 17)
995	continue;
996
997	memcpy(aszAddr, pszLo2Off, (pszTerm - pszLo2Off));
998	rc = RTNetStrToIPv4Addr(aszAddr, &ip4addr);
999	if (RT_FAILURE(rc))
1000	continue;
1001
1002	u32Off = RTStrToUInt32(pszTerm + 1);
1003	if (u32Off == 0)
1004	continue;
1005
1006	ip4_addr_set_u32(&m_lo2off[j].loaddr, ip4addr.u);
1007	m_lo2off[j].off = u32Off;
1008	++j;
1009	}
1010
1011	m_loOptDescriptor.lomap = m_lo2off;
1012	m_loOptDescriptor.num_lomap = j;
1013	m_ProxyOptions.lomap_desc = &m_loOptDescriptor;
1014	}
1015
1016	hrc = virtualbox->COMGETTER(HomeFolder)(bstr.asOutParam());
1017	AssertComRCReturn(hrc, VERR_NOT_FOUND);
1018	if (!bstr.isEmpty())
1019	{
1020	com::Utf8Str strTftpRoot(com::Utf8StrFmt("%ls%c%s",
1021	bstr.raw(), RTPATH_DELIMITER, "TFTP"));
1022	char pszStrTemp; // avoid const char * vs char **
1023	rc = RTStrUtf8ToCurrentCP(&pszStrTemp, strTftpRoot.c_str());
1024	AssertRC(rc);
1025	m_ProxyOptions.tftp_root = pszStrTemp;
1026	}
1027
1028	/* end of COM initialization */
1029
1030	rc = RTSemEventCreate(&hSemSVC);
1031	AssertRCReturn(rc, rc);
1032
1033	rc = RTReqQueueCreate(&hReqIntNet);
1034	AssertRCReturn(rc, rc);
1035
1036	g_pLwipNat->tryGoOnline();
1037	vboxLwipCoreInitialize(VBoxNetLwipNAT::onLwipTcpIpInit, this);
1038
1039	rc = RTThreadCreate(&g_pLwipNat->hThrIntNetRecv, /* thread handle*/
1040	VBoxNetLwipNAT::intNetThreadRecv, /* routine */
1041	NULL, /* user data */
1042	128 * _1K, /* stack size */
1043	RTTHREADTYPE_IO, /* type */
1044	0, /* flags, @todo: waitable ?*/
1045	"INTNET-RECV");
1046	AssertRCReturn(rc,rc);
1047
1048
1049
1050	LogFlowFuncLeaveRC(rc);
1051	return rc;
1052	}
1053
1054
1055	int VBoxNetLwipNAT::parseOpt(int rc, const RTGETOPTUNION& Val)
1056	{
1057	switch (rc)
1058	{
1059	case 'p':
1060	case 'P':
1061	{
1062	NATSEVICEPORTFORWARDRULE Rule;
1063	VECNATSERVICEPF& rules = (rc == 'P'?
1064	m_vecPortForwardRule6
1065	: m_vecPortForwardRule4);
1066
1067	fDontLoadRulesOnStartup = true;
1068
1069	RT_ZERO(Rule);
1070
1071	int irc = netPfStrToPf(Val.psz, (rc == 'P'), &Rule.Pfr);
1072	rules.push_back(Rule);
1073	return VINF_SUCCESS;
1074	}
1075	default:;
1076	}
1077	return VERR_NOT_FOUND;
1078	}
1079
1080
1081	int VBoxNetLwipNAT::run()
1082	{
1083
1084	while(true)
1085	{
1086	RTSemEventWait(g_pLwipNat->hSemSVC, RT_INDEFINITE_WAIT);
1087	}
1088
1089	vboxLwipCoreFinalize(VBoxNetLwipNAT::onLwipTcpIpFini, this);
1090
1091	/* @todo: clean up of port-forward rules */
1092	m_vecPortForwardRule4.clear();
1093	m_vecPortForwardRule6.clear();
1094
1095	return VINF_SUCCESS;
1096	}
1097
1098
1099	/**
1100	* Entry point.
1101	*/
1102	extern "C" DECLEXPORT(int) TrustedMain(int argc, char argv, char envp)
1103	{
1104	LogFlowFuncEnter();
1105
1106	NOREF(envp);
1107
1108	#ifdef RT_OS_WINDOWS
1109	WSADATA wsaData;
1110	int err;
1111
1112	err = WSAStartup(MAKEWORD(2,2), &wsaData);
1113	if (err)
1114	{
1115	fprintf(stderr, "wsastartup: failed (%d)\n", err);
1116	return 1;
1117	}
1118	#endif
1119
1120	HRESULT hrc = com::Initialize();
1121	#ifdef VBOX_WITH_XPCOM
1122	if (hrc == NS_ERROR_FILE_ACCESS_DENIED)
1123	{
1124	char szHome[RTPATH_MAX] = "";
1125	com::GetVBoxUserHomeDirectory(szHome, sizeof(szHome));
1126	return RTMsgErrorExit(RTEXITCODE_FAILURE,
1127	"Failed to initialize COM because the global settings directory '%s' is not accessible!", szHome);
1128	}
1129	#endif
1130	if (FAILED(hrc))
1131	return RTMsgErrorExit(RTEXITCODE_FAILURE, "Failed to initialize COM!");
1132
1133	g_pLwipNat = new VBoxNetLwipNAT();
1134
1135	Log2(("NAT: initialization\n"));
1136	int rc = g_pLwipNat->parseArgs(argc - 1, argv + 1);
1137	AssertRC(rc);
1138
1139
1140	if (!rc)
1141	{
1142
1143	g_pLwipNat->init();
1144	g_pLwipNat->run();
1145
1146	}
1147	delete g_pLwipNat;
1148	return 0;
1149	}
1150
1151
1152	#ifndef VBOX_WITH_HARDENING
1153
1154	int main(int argc, char argv, char envp)
1155	{
1156	int rc = RTR3InitExe(argc, &argv, RTR3INIT_FLAGS_SUPLIB);
1157	if (RT_FAILURE(rc))
1158	return RTMsgInitFailure(rc);
1159
1160	return TrustedMain(argc, argv, envp);
1161	}
1162
1163	# if defined(RT_OS_WINDOWS)
1164
1165	static LRESULT CALLBACK WindowProc(HWND hwnd,
1166	UINT uMsg,
1167	WPARAM wParam,
1168	LPARAM lParam
1169	)
1170	{
1171	if(uMsg == WM_DESTROY)
1172	{
1173	PostQuitMessage(0);
1174	return 0;
1175	}
1176	return DefWindowProc (hwnd, uMsg, wParam, lParam);
1177	}
1178
1179	static LPCWSTR g_WndClassName = L"VBoxNetNatLwipClass";
1180
1181	static DWORD WINAPI MsgThreadProc(__in LPVOID lpParameter)
1182	{
1183	HWND hwnd = 0;
1184	HINSTANCE hInstance = (HINSTANCE)GetModuleHandle (NULL);
1185	bool bExit = false;
1186
1187	/* Register the Window Class. */
1188	WNDCLASS wc;
1189	wc.style = 0;
1190	wc.lpfnWndProc = WindowProc;
1191	wc.cbClsExtra = 0;
1192	wc.cbWndExtra = sizeof(void *);
1193	wc.hInstance = hInstance;
1194	wc.hIcon = NULL;
1195	wc.hCursor = NULL;
1196	wc.hbrBackground = (HBRUSH)(COLOR_BACKGROUND + 1);
1197	wc.lpszMenuName = NULL;
1198	wc.lpszClassName = g_WndClassName;
1199
1200	ATOM atomWindowClass = RegisterClass(&wc);
1201
1202	if (atomWindowClass != 0)
1203	{
1204	/* Create the window. */
1205	hwnd = CreateWindowEx (WS_EX_TOOLWINDOW \| WS_EX_TRANSPARENT \| WS_EX_TOPMOST,
1206	g_WndClassName, g_WndClassName,
1207	WS_POPUPWINDOW,
1208	-200, -200, 100, 100, NULL, NULL, hInstance, NULL);
1209
1210	if (hwnd)
1211	{
1212	SetWindowPos(hwnd, HWND_TOPMOST, -200, -200, 0, 0,
1213	SWP_NOACTIVATE \| SWP_HIDEWINDOW \| SWP_NOCOPYBITS \| SWP_NOREDRAW \| SWP_NOSIZE);
1214
1215	MSG msg;
1216	while (GetMessage(&msg, NULL, 0, 0))
1217	{
1218	TranslateMessage(&msg);
1219	DispatchMessage(&msg);
1220	}
1221
1222	DestroyWindow (hwnd);
1223
1224	bExit = true;
1225	}
1226
1227	UnregisterClass (g_WndClassName, hInstance);
1228	}
1229
1230	if(bExit)
1231	{
1232	/* no need any accuracy here, in anyway the DHCP server usually gets terminated with TerminateProcess */
1233	exit(0);
1234	}
1235
1236	return 0;
1237	}
1238
1239
1240
1241	/** (We don't want a console usually.) */
1242	int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
1243	{
1244	#if 0
1245	NOREF(hInstance); NOREF(hPrevInstance); NOREF(lpCmdLine); NOREF(nCmdShow);
1246
1247	HANDLE hThread = CreateThread(
1248	NULL, /__in_opt LPSECURITY_ATTRIBUTES lpThreadAttributes, /
1249	0, /__in SIZE_T dwStackSize, /
1250	MsgThreadProc, /__in LPTHREAD_START_ROUTINE lpStartAddress,/
1251	NULL, /__in_opt LPVOID lpParameter,/
1252	0, /__in DWORD dwCreationFlags,/
1253	NULL /__out_opt LPDWORD lpThreadId/
1254	);
1255
1256	if(hThread != NULL)
1257	CloseHandle(hThread);
1258
1259	#endif
1260	return main(__argc, __argv, environ);
1261	}
1262	# endif /* RT_OS_WINDOWS */
1263
1264	#endif /* !VBOX_WITH_HARDENING */
1265

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source: vbox/trunk/src/VBox/NetworkServices/NAT/VBoxNetLwipNAT.cpp@ 49110

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