VBoxNetLwipNAT.cpp@ 49149

Last change on this file since 49149 was 49149, checked in by vboxsync, 11 years ago
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1	/* $Id: VBoxNetLwipNAT.cpp 49149 2013-10-17 03:53:24Z 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	m_ProxyOptions.ipv6_defroute = fIPv6DefaultRoute;
249	tcpip_callback_with_block(proxy_rtadvd_do_quick, &m_LwipNetIf, 0);
250
251	break;
252	}
253
254	case VBoxEventType_OnNATNetworkPortForward:
255	{
256	com::Bstr name, strHostAddr, strGuestAddr;
257	LONG lHostPort, lGuestPort;
258	BOOL fCreateFW, fIPv6FW;
259	NATProtocol_T proto = NATProtocol_TCP;
260
261
262	ComPtr<INATNetworkPortForwardEvent> pfEvt = pEvent;
263
264	hrc = pfEvt->COMGETTER(Name)(name.asOutParam());
265	AssertReturn(SUCCEEDED(hrc), hrc);
266
267	hrc = pfEvt->COMGETTER(Proto)(&proto);
268	AssertReturn(SUCCEEDED(hrc), hrc);
269
270	hrc = pfEvt->COMGETTER(HostIp)(strHostAddr.asOutParam());
271	AssertReturn(SUCCEEDED(hrc), hrc);
272
273	hrc = pfEvt->COMGETTER(HostPort)(&lHostPort);
274	AssertReturn(SUCCEEDED(hrc), hrc);
275
276	hrc = pfEvt->COMGETTER(GuestIp)(strGuestAddr.asOutParam());
277	AssertReturn(SUCCEEDED(hrc), hrc);
278
279	hrc = pfEvt->COMGETTER(GuestPort)(&lGuestPort);
280	AssertReturn(SUCCEEDED(hrc), hrc);
281
282	hrc = pfEvt->COMGETTER(Create)(&fCreateFW);
283	AssertReturn(SUCCEEDED(hrc), hrc);
284
285	hrc = pfEvt->COMGETTER(Ipv6)(&fIPv6FW);
286	AssertReturn(SUCCEEDED(hrc), hrc);
287
288	VECNATSERVICEPF& rules = (fIPv6FW ?
289	m_vecPortForwardRule6 :
290	m_vecPortForwardRule4);
291
292	NATSEVICEPORTFORWARDRULE r;
293
294	RT_ZERO(r);
295
296	if (name.length() > sizeof(r.Pfr.szPfrName))
297	{
298	hrc = E_INVALIDARG;
299	goto port_forward_done;
300	}
301
302	r.Pfr.fPfrIPv6 = fIPv6FW;
303
304	switch (proto)
305	{
306	case NATProtocol_TCP:
307	r.Pfr.iPfrProto = IPPROTO_TCP;
308	break;
309	case NATProtocol_UDP:
310	r.Pfr.iPfrProto = IPPROTO_UDP;
311	break;
312	default:
313	goto port_forward_done;
314	}
315
316
317	RTStrPrintf(r.Pfr.szPfrName, sizeof(r.Pfr.szPfrName),
318	"%s", com::Utf8Str(name).c_str());
319
320	RTStrPrintf(r.Pfr.szPfrHostAddr, sizeof(r.Pfr.szPfrHostAddr),
321	"%s", com::Utf8Str(strHostAddr).c_str());
322
323	/* XXX: limits should be checked */
324	r.Pfr.u16PfrHostPort = (uint16_t)lHostPort;
325
326	RTStrPrintf(r.Pfr.szPfrGuestAddr, sizeof(r.Pfr.szPfrGuestAddr),
327	"%s", com::Utf8Str(strGuestAddr).c_str());
328
329	/* XXX: limits should be checked */
330	r.Pfr.u16PfrGuestPort = (uint16_t)lGuestPort;
331
332	if (fCreateFW) /* Addition */
333	{
334	rules.push_back(r);
335
336	natServicePfRegister(rules.back());
337	}
338	else /* Deletion */
339	{
340	ITERATORNATSERVICEPF it;
341	for (it = rules.begin(); it != rules.end(); ++it)
342	{
343	/* compare */
344	NATSEVICEPORTFORWARDRULE& natFw = *it;
345	if ( natFw.Pfr.iPfrProto == r.Pfr.iPfrProto
346	&& natFw.Pfr.u16PfrHostPort == r.Pfr.u16PfrHostPort
347	&& (strncmp(natFw.Pfr.szPfrHostAddr, r.Pfr.szPfrHostAddr, INET6_ADDRSTRLEN) == 0)
348	&& natFw.Pfr.u16PfrGuestPort == r.Pfr.u16PfrGuestPort
349	&& (strncmp(natFw.Pfr.szPfrGuestAddr, r.Pfr.szPfrGuestAddr, INET6_ADDRSTRLEN) == 0))
350	{
351	fwspec pFwCopy = (fwspec )RTMemAllocZ(sizeof(fwspec));
352	if (!pFwCopy)
353	{
354	break;
355	}
356	memcpy(pFwCopy, &natFw.FWSpec, sizeof(fwspec));
357
358	/* We shouldn't care about pFwCopy this memory will be freed when
359	* will message will arrive to the destination.
360	*/
361	portfwd_rule_del(pFwCopy);
362
363	rules.erase(it);
364	break;
365	}
366	} /* loop over vector elements */
367	} /* condition add or delete */
368	port_forward_done:
369	/* clean up strings */
370	name.setNull();
371	strHostAddr.setNull();
372	strGuestAddr.setNull();
373	break;
374	}
375	}
376	return hrc;
377	}
378
379
380	void VBoxNetLwipNAT::onLwipTcpIpInit(void* arg)
381	{
382	AssertPtrReturnVoid(arg);
383	VBoxNetLwipNAT pNat = static_cast<VBoxNetLwipNAT >(arg);
384
385	HRESULT hrc = com::Initialize();
386	Assert(!FAILED(hrc));
387
388	proxy_arp_hook = pxremap_proxy_arp;
389	proxy_ip4_divert_hook = pxremap_ip4_divert;
390
391	proxy_na_hook = pxremap_proxy_na;
392	proxy_ip6_divert_hook = pxremap_ip6_divert;
393
394	/* lwip thread */
395	RTNETADDRIPV4 IpNetwork;
396	IpNetwork.u = g_pLwipNat->m_Ipv4Address.u & g_pLwipNat->m_Ipv4Netmask.u;
397
398	ip_addr LwipIpAddr, LwipIpNetMask, LwipIpNetwork;
399
400	memcpy(&LwipIpAddr, &g_pLwipNat->m_Ipv4Address, sizeof(ip_addr));
401	memcpy(&LwipIpNetMask, &g_pLwipNat->m_Ipv4Netmask, sizeof(ip_addr));
402	memcpy(&LwipIpNetwork, &IpNetwork, sizeof(ip_addr));
403
404	netif pNetif = netif_add(&g_pLwipNat->m_LwipNetIf / Lwip Interface */,
405	&LwipIpAddr /* IP address*/,
406	&LwipIpNetMask /* Network mask */,
407	&LwipIpAddr /* gateway address, @todo: is self IP acceptable? */,
408	g_pLwipNat /* state */,
409	VBoxNetLwipNAT::netifInit /* netif_init_fn */,
410	lwip_tcpip_input /* netif_input_fn */);
411
412	AssertPtrReturnVoid(pNetif);
413
414	netif_set_up(pNetif);
415	netif_set_link_up(pNetif);
416
417	if (pNat->m_ProxyOptions.ipv6_enabled) {
418	/*
419	* XXX: lwIP currently only ever calls mld6_joingroup() in
420	* nd6_tmr() for fresh tentative addresses, which is a wrong place
421	* to do it - but I'm not keen on fixing this properly for now
422	* (with correct handling of interface up and down transitions,
423	* etc). So stick it here as a kludge.
424	*/
425	for (int i = 0; i <= 1; ++i) {
426	ip6_addr_t *paddr = netif_ip6_addr(pNetif, i);
427
428	ip6_addr_t solicited_node_multicast_address;
429	ip6_addr_set_solicitednode(&solicited_node_multicast_address,
430	paddr->addr[3]);
431	mld6_joingroup(paddr, &solicited_node_multicast_address);
432	}
433
434	/*
435	* XXX: We must join the solicited-node multicast for the
436	* addresses we do IPv6 NA-proxy for. We map IPv6 loopback to
437	* proxy address + 1. We only need the low 24 bits, and those are
438	* fixed.
439	*/
440	{
441	ip6_addr_t solicited_node_multicast_address;
442
443	ip6_addr_set_solicitednode(&solicited_node_multicast_address,
444	/* last 24 bits of the address */
445	PP_HTONL(0x00000002));
446	mld6_netif_joingroup(pNetif, &solicited_node_multicast_address);
447	}
448	}
449
450	proxy_init(&g_pLwipNat->m_LwipNetIf, &g_pLwipNat->m_ProxyOptions);
451
452	natServiceProcessRegisteredPf(g_pLwipNat->m_vecPortForwardRule4);
453	natServiceProcessRegisteredPf(g_pLwipNat->m_vecPortForwardRule6);
454	}
455
456
457	void VBoxNetLwipNAT::onLwipTcpIpFini(void* arg)
458	{
459	AssertPtrReturnVoid(arg);
460	VBoxNetLwipNAT pThis = (VBoxNetLwipNAT )arg;
461
462	/* XXX: proxy finalization */
463	netif_set_link_down(&g_pLwipNat->m_LwipNetIf);
464	netif_set_down(&g_pLwipNat->m_LwipNetIf);
465	netif_remove(&g_pLwipNat->m_LwipNetIf);
466
467	}
468
469	/*
470	* Callback for netif_add() to initialize the interface.
471	*/
472	err_t VBoxNetLwipNAT::netifInit(netif *pNetif)
473	{
474	err_t rcLwip = ERR_OK;
475
476	AssertPtrReturn(pNetif, ERR_ARG);
477
478	VBoxNetLwipNAT pNat = static_cast<VBoxNetLwipNAT >(pNetif->state);
479	AssertPtrReturn(pNat, ERR_ARG);
480
481	LogFlowFunc(("ENTER: pNetif[%c%c%d]\n", pNetif->name[0], pNetif->name[1], pNetif->num));
482	/* validity */
483	AssertReturn( pNetif->name[0] == 'N'
484	&& pNetif->name[1] == 'T', ERR_ARG);
485
486
487	pNetif->hwaddr_len = sizeof(RTMAC);
488	memcpy(pNetif->hwaddr, &pNat->m_MacAddress, sizeof(RTMAC));
489
490	pNat->m_u16Mtu = 1500; // XXX: FIXME
491	pNetif->mtu = pNat->m_u16Mtu;
492
493	pNetif->flags = NETIF_FLAG_BROADCAST
494	\| NETIF_FLAG_ETHARP /* Don't bother driver with ARP and let Lwip resolve ARP handling */
495	\| NETIF_FLAG_ETHERNET; /* Lwip works with ethernet too */
496
497	pNetif->linkoutput = netifLinkoutput; /* ether-level-pipe */
498	pNetif->output = lwip_etharp_output; /* ip-pipe */
499
500	if (pNat->m_ProxyOptions.ipv6_enabled) {
501	pNetif->output_ip6 = ethip6_output;
502
503	/* IPv6 link-local address in slot 0 */
504	netif_create_ip6_linklocal_address(pNetif, /* :from_mac_48bit */ 1);
505	netif_ip6_addr_set_state(pNetif, 0, IP6_ADDR_PREFERRED); // skip DAD
506
507	/*
508	* RFC 4193 Locally Assigned Global ID (ULA) in slot 1
509	* [fd17:625c:f037:XXXX::1] where XXXX, 16 bit Subnet ID, are two
510	* bytes from the middle of the IPv4 address, e.g. :dead: for
511	* 10.222.173.1
512	*/
513	u8_t nethi = ip4_addr2(&pNetif->ip_addr);
514	u8_t netlo = ip4_addr3(&pNetif->ip_addr);
515
516	ip6_addr_t *paddr = netif_ip6_addr(pNetif, 1);
517	IP6_ADDR(paddr, 0, 0xFD, 0x17, 0x62, 0x5C);
518	IP6_ADDR(paddr, 1, 0xF0, 0x37, nethi, netlo);
519	IP6_ADDR(paddr, 2, 0x00, 0x00, 0x00, 0x00);
520	IP6_ADDR(paddr, 3, 0x00, 0x00, 0x00, 0x01);
521	netif_ip6_addr_set_state(pNetif, 1, IP6_ADDR_PREFERRED);
522
523	#if LWIP_IPV6_SEND_ROUTER_SOLICIT
524	pNetif->rs_count = 0;
525	#endif
526	}
527
528	LogFlowFunc(("LEAVE: %d\n", rcLwip));
529	return rcLwip;
530	}
531
532
533	/**
534	* Intnet-recv thread
535	*/
536	int VBoxNetLwipNAT::intNetThreadRecv(RTTHREAD, void *)
537	{
538	int rc = VINF_SUCCESS;
539
540	/* 1. initialization and connection */
541	HRESULT hrc = com::Initialize();
542	if (FAILED(hrc))
543	return RTMsgErrorExit(RTEXITCODE_FAILURE, "Failed to initialize COM!");
544
545	/* Well we're ready */
546	PINTNETRINGBUF pRingBuf = &g_pLwipNat->m_pIfBuf->Recv;
547
548	for (;;)
549	{
550	/*
551	* Wait for a packet to become available.
552	*/
553	/* 2. waiting for request for */
554	rc = g_pLwipNat->waitForIntNetEvent(2000);
555	if (RT_FAILURE(rc))
556	{
557	if (rc == VERR_TIMEOUT \|\| rc == VERR_INTERRUPTED)
558	{
559	/* do we want interrupt anyone ??? */
560	continue;
561	}
562	LogRel(("VBoxNetNAT: waitForIntNetEvent returned %Rrc\n", rc));
563	AssertRCReturn(rc,ERR_IF);
564	}
565
566	/*
567	* Process the receive buffer.
568	*/
569	PCINTNETHDR pHdr;
570
571	while ((pHdr = IntNetRingGetNextFrameToRead(pRingBuf)) != NULL)
572	{
573	uint8_t const u8Type = pHdr->u8Type;
574	size_t cbFrame = pHdr->cbFrame;
575	uint8_t *pu8Frame = NULL;
576	pbuf *pPbufHdr = NULL;
577	pbuf *pPbuf = NULL;
578	switch (u8Type)
579	{
580
581	case INTNETHDR_TYPE_FRAME:
582	/* @todo:should it be really here?
583	* Well well well, we're accessing lwip code here
584	*/
585	pPbufHdr = pPbuf = pbuf_alloc(PBUF_RAW, pHdr->cbFrame, PBUF_POOL);
586	if (!pPbuf)
587	{
588	LogRel(("NAT: Can't allocate send buffer cbFrame=%u\n", cbFrame));
589	break;
590	}
591	Assert(pPbufHdr->tot_len == cbFrame);
592	pu8Frame = (uint8_t *)IntNetHdrGetFramePtr(pHdr, g_pLwipNat->m_pIfBuf);
593	while(pPbuf)
594	{
595	memcpy(pPbuf->payload, pu8Frame, pPbuf->len);
596	pu8Frame += pPbuf->len;
597	pPbuf = pPbuf->next;
598	}
599
600	g_pLwipNat->m_LwipNetIf.input(pPbufHdr, &g_pLwipNat->m_LwipNetIf);
601
602	AssertReleaseRC(rc);
603	break;
604	case INTNETHDR_TYPE_GSO:
605	{
606	PCPDMNETWORKGSO pGso = IntNetHdrGetGsoContext(pHdr,
607	g_pLwipNat->m_pIfBuf);
608	if (!PDMNetGsoIsValid(pGso, cbFrame,
609	cbFrame - sizeof(PDMNETWORKGSO)))
610	break;
611	cbFrame -= sizeof(PDMNETWORKGSO);
612	uint8_t abHdrScratch[256];
613	uint32_t const cSegs = PDMNetGsoCalcSegmentCount(pGso,
614	cbFrame);
615	for (size_t iSeg = 0; iSeg < cSegs; iSeg++)
616	{
617	uint32_t cbSegFrame;
618	void *pvSegFrame =
619	PDMNetGsoCarveSegmentQD(pGso,
620	(uint8_t *)(pGso + 1),
621	cbFrame,
622	abHdrScratch,
623	iSeg,
624	cSegs,
625	&cbSegFrame);
626
627	pPbuf = pbuf_alloc(PBUF_RAW, cbSegFrame, PBUF_POOL);
628	if (!pPbuf)
629	{
630	LogRel(("NAT: Can't allocate send buffer cbFrame=%u\n", cbSegFrame));
631	break;
632	}
633	Assert( !pPbuf->next
634	&& pPbuf->len == cbSegFrame);
635	memcpy(pPbuf->payload, pvSegFrame, cbSegFrame);
636	g_pLwipNat->m_LwipNetIf.input(pPbuf, &g_pLwipNat->m_LwipNetIf);
637
638	}
639
640	}
641	break;
642	case INTNETHDR_TYPE_PADDING:
643	break;
644	default:
645	STAM_REL_COUNTER_INC(&g_pLwipNat->m_pIfBuf->cStatBadFrames);
646	break;
647	}
648	IntNetRingSkipFrame(&g_pLwipNat->m_pIfBuf->Recv);
649
650	} /* loop */
651	}
652	/* 3. deinitilization and termination */
653	LogFlowFuncLeaveRC(rc);
654	return rc;
655	}
656
657
658	/**
659	*
660	*/
661	void VBoxNetLwipNAT::vboxNetLwipNATProcessXmit()
662	{
663	int rc = VINF_SUCCESS;
664	INTNETIFSENDREQ SendReq;
665	SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
666	SendReq.Hdr.cbReq = sizeof(SendReq);
667	SendReq.pSession = g_pLwipNat->m_pSession;
668	SendReq.hIf = g_pLwipNat->m_hIf;
669	rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_INTNET_IF_SEND, 0, &SendReq.Hdr);
670	AssertRC(rc);
671	}
672
673
674	err_t VBoxNetLwipNAT::netifLinkoutput(netif pNetif, pbuf pPBuf)
675	{
676	int rc = VINF_SUCCESS;
677	err_t rcLwip = ERR_OK;
678	AssertPtrReturn(pNetif, ERR_ARG);
679	AssertPtrReturn(pPBuf, ERR_ARG);
680	AssertReturn((void *)g_pLwipNat == pNetif->state, ERR_ARG);
681	LogFlowFunc(("ENTER: pNetif[%c%c%d], pPbuf:%p\n",
682	pNetif->name[0],
683	pNetif->name[1],
684	pNetif->num,
685	pPBuf));
686
687	/*
688	* We're on the lwip thread ...
689	* try accure Xmit lock (actually we DO accure the lock ... )
690	* 1. we've entered csXmit so we should create frame
691	* 1.a. Frame creation success see 2.
692	* 1.b. (hm ... what about queue processing in place)
693	* 1.c. 2nd attempt create frame
694	* 1.d. Unlock the Xmit
695	* 1.e. goto BUSY.1
696	* 2. Copy pbuf to the frame
697	* 3. Send
698	* 4. leave csXmit & return.
699	*
700	* @todo: perhaps we can use it for optimization,
701	* e.g. drop UDP and reoccure lock on TCP NOTE: now BUSY is unachievable!
702	* Otherwise (BUSY)
703	* 1. Unbuffered (drop)
704	* (buffered)
705	* 1. Copy pbuf to entermediate buffer.
706	* 2. Add call buffer to the queue
707	* 3. return.
708	*/
709	/* see p.1 */
710	rc = VINF_SUCCESS;
711	PINTNETHDR pHdr = NULL;
712	uint8_t *pu8Frame = NULL;
713	int offFrame = 0;
714	int idxSg = 0;
715	struct pbuf *pPBufPtr = pPBuf;
716	/* Allocate frame, and pad it if required. */
717	rc = IntNetRingAllocateFrame(&g_pLwipNat->m_pIfBuf->Send, pPBuf->tot_len, &pHdr, (void **)&pu8Frame);
718	if (RT_SUCCESS(rc))
719	{
720	/* see p. 2 */
721	while (pPBufPtr)
722	{
723	memcpy(&pu8Frame[offFrame], pPBufPtr->payload, pPBufPtr->len);
724	offFrame += pPBufPtr->len;
725	pPBufPtr = pPBufPtr->next;
726	}
727	}
728	if (RT_FAILURE(rc))
729	{
730	/* Could it be that some frames are still in the ring buffer */
731	/* 1.c */
732	AssertMsgFailed(("Debug Me!"));
733	}
734
735	/* Commit - what really this function do */
736	IntNetRingCommitFrameEx(&g_pLwipNat->m_pIfBuf->Send, pHdr, pPBuf->tot_len);
737
738	g_pLwipNat->vboxNetLwipNATProcessXmit();
739
740	AssertRCReturn(rc, ERR_IF);
741	LogFlowFunc(("LEAVE: %d\n", rcLwip));
742	return rcLwip;
743	}
744
745
746	VBoxNetLwipNAT::VBoxNetLwipNAT()
747	{
748	LogFlowFuncEnter();
749
750	m_ProxyOptions.ipv6_enabled = 0;
751	m_ProxyOptions.ipv6_defroute = 0;
752	m_ProxyOptions.tftp_root = NULL;
753	m_ProxyOptions.src4 = NULL;
754	m_ProxyOptions.src6 = NULL;
755	memset(&m_src4, 0, sizeof(m_src4));
756	memset(&m_src6, 0, sizeof(m_src6));
757	m_src4.sin_family = AF_INET;
758	m_src6.sin6_family = AF_INET6;
759	#if HAVE_SA_LEN
760	m_src4.sin_len = sizeof(m_src4);
761	m_src6.sin6_len = sizeof(m_src6);
762	#endif
763
764	m_LwipNetIf.name[0] = 'N';
765	m_LwipNetIf.name[1] = 'T';
766	m_MacAddress.au8[0] = 0x52;
767	m_MacAddress.au8[1] = 0x54;
768	m_MacAddress.au8[2] = 0;
769	m_MacAddress.au8[3] = 0x12;
770	m_MacAddress.au8[4] = 0x35;
771	m_MacAddress.au8[5] = 0;
772	m_Ipv4Address.u = RT_MAKE_U32_FROM_U8( 10, 0, 2, 2); // NB: big-endian
773	m_Ipv4Netmask.u = RT_H2N_U32_C(0xffffff00);
774
775	fDontLoadRulesOnStartup = false;
776
777	for(unsigned int i = 0; i < RT_ELEMENTS(g_aGetOptDef); ++i)
778	m_vecOptionDefs.push_back(&g_aGetOptDef[i]);
779
780	m_enmTrunkType = kIntNetTrunkType_SrvNat;
781
782	LogFlowFuncLeave();
783	}
784
785
786	VBoxNetLwipNAT::~VBoxNetLwipNAT()
787	{
788	if (m_ProxyOptions.tftp_root != NULL)
789	{
790	RTStrFree((char *)m_ProxyOptions.tftp_root);
791	}
792	}
793
794
795	int VBoxNetLwipNAT::natServicePfRegister(NATSEVICEPORTFORWARDRULE& natPf)
796	{
797	int lrc = 0;
798	int rc = VINF_SUCCESS;
799	int socketSpec = SOCK_STREAM;
800	char *pszHostAddr;
801	int sockFamily = (natPf.Pfr.fPfrIPv6 ? PF_INET6 : PF_INET);
802
803	switch(natPf.Pfr.iPfrProto)
804	{
805	case IPPROTO_TCP:
806	socketSpec = SOCK_STREAM;
807	break;
808	case IPPROTO_UDP:
809	socketSpec = SOCK_DGRAM;
810	break;
811	default:
812	return VERR_IGNORED; /* Ah, just ignore the garbage */
813	}
814
815	pszHostAddr = natPf.Pfr.szPfrHostAddr;
816
817	/* XXX: workaround for inet_pton and an empty ipv4 address
818	* in rule declaration.
819	*/
820	if ( sockFamily == PF_INET
821	&& pszHostAddr[0] == 0)
822	pszHostAddr = (char )"0.0.0.0"; / XXX: fix it! without type cast */
823
824
825	lrc = fwspec_set(&natPf.FWSpec,
826	sockFamily,
827	socketSpec,
828	pszHostAddr,
829	natPf.Pfr.u16PfrHostPort,
830	natPf.Pfr.szPfrGuestAddr,
831	natPf.Pfr.u16PfrGuestPort);
832
833	AssertReturn(!lrc, VERR_IGNORED);
834
835	fwspec pFwCopy = (fwspec )RTMemAllocZ(sizeof(fwspec));
836	AssertPtrReturn(pFwCopy, VERR_IGNORED);
837
838	/*
839	* We need pass the copy, because we can't be sure
840	* how much this pointer will be valid in LWIP environment.
841	*/
842	memcpy(pFwCopy, &natPf.FWSpec, sizeof(fwspec));
843
844	lrc = portfwd_rule_add(pFwCopy);
845
846	AssertReturn(!lrc, VERR_IGNORED);
847
848	return VINF_SUCCESS;
849	}
850
851
852	int VBoxNetLwipNAT::natServiceProcessRegisteredPf(VECNATSERVICEPF& vecRules){
853	ITERATORNATSERVICEPF it;
854	for (it = vecRules.begin();
855	it != vecRules.end(); ++it)
856	{
857	int rc = natServicePfRegister((*it));
858	if (RT_FAILURE(rc))
859	{
860	LogRel(("PF: %s is ignored\n", (*it).Pfr.szPfrName));
861	continue;
862	}
863	}
864	return VINF_SUCCESS;
865	}
866
867
868	int VBoxNetLwipNAT::init()
869	{
870	com::Bstr bstr;
871	int rc = VINF_SUCCESS;
872	LogFlowFuncEnter();
873
874
875	/* virtualbox initialized in super class */
876
877	HRESULT hrc;
878	hrc = virtualbox->FindNATNetworkByName(com::Bstr(m_Network.c_str()).raw(),
879	net.asOutParam());
880	AssertComRCReturn(hrc, VERR_NOT_FOUND);
881
882	BOOL fIPv6Enabled = FALSE;
883	hrc = net->COMGETTER(IPv6Enabled)(&fIPv6Enabled);
884	AssertComRCReturn(hrc, VERR_NOT_FOUND);
885
886	BOOL fIPv6DefaultRoute = FALSE;
887	if (fIPv6Enabled)
888	{
889	hrc = net->COMGETTER(AdvertiseDefaultIPv6RouteEnabled)(&fIPv6DefaultRoute);
890	AssertComRCReturn(hrc, VERR_NOT_FOUND);
891	}
892
893	m_ProxyOptions.ipv6_enabled = fIPv6Enabled;
894	m_ProxyOptions.ipv6_defroute = fIPv6DefaultRoute;
895
896	/* XXX: Temporaly disabled this code on Windows for further debugging */
897	ComPtr<IEventSource> pES;
898
899	hrc = net->COMGETTER(EventSource)(pES.asOutParam());
900	AssertComRC(hrc);
901
902	ComObjPtr<NATNetworkListenerImpl> listener;
903	hrc = listener.createObject();
904	AssertComRCReturn(hrc, VERR_INTERNAL_ERROR);
905
906	hrc = listener->init(new NATNetworkListener(), this);
907	AssertComRCReturn(hrc, VERR_INTERNAL_ERROR);
908
909	com::SafeArray<VBoxEventType_T> events;
910	events.push_back(VBoxEventType_OnNATNetworkPortForward);
911	events.push_back(VBoxEventType_OnNATNetworkSetting);
912
913	hrc = pES->RegisterListener(listener, ComSafeArrayAsInParam(events), true);
914	AssertComRCReturn(hrc, VERR_INTERNAL_ERROR);
915
916	m_listener = listener;
917
918	com::Bstr bstrSourceIp4Key = com::BstrFmt("NAT/%s/SourceIp4",m_Network.c_str());
919	com::Bstr bstrSourceIpX;
920	RTNETADDRIPV4 addr;
921	hrc = virtualbox->GetExtraData(bstrSourceIp4Key.raw(), bstrSourceIpX.asOutParam());
922	if (SUCCEEDED(hrc))
923	{
924	rc = RTNetStrToIPv4Addr(com::Utf8Str(bstrSourceIpX).c_str(), &addr);
925	if (RT_SUCCESS(rc))
926	{
927	RT_ZERO(m_src4);
928
929	m_src4.sin_addr.s_addr = addr.u;
930	m_ProxyOptions.src4 = &m_src4;
931
932	bstrSourceIpX.setNull();
933	}
934	}
935
936	if (!fDontLoadRulesOnStartup)
937	{
938	/* XXX: extract function and do not duplicate */
939	com::SafeArray<BSTR> rules;
940	hrc = net->COMGETTER(PortForwardRules4)(ComSafeArrayAsOutParam(rules));
941	Assert(SUCCEEDED(hrc));
942
943	size_t idxRules = 0;
944	for (idxRules = 0; idxRules < rules.size(); ++idxRules)
945	{
946	Log(("%d-rule: %ls\n", idxRules, rules[idxRules]));
947	NATSEVICEPORTFORWARDRULE Rule;
948	RT_ZERO(Rule);
949	rc = netPfStrToPf(com::Utf8Str(rules[idxRules]).c_str(), 0, &Rule.Pfr);
950	AssertRC(rc);
951	m_vecPortForwardRule4.push_back(Rule);
952	}
953
954	rules.setNull();
955	hrc = net->COMGETTER(PortForwardRules6)(ComSafeArrayAsOutParam(rules));
956	Assert(SUCCEEDED(hrc));
957
958	for (idxRules = 0; idxRules < rules.size(); ++idxRules)
959	{
960	Log(("%d-rule: %ls\n", idxRules, rules[idxRules]));
961	NATSEVICEPORTFORWARDRULE Rule;
962	netPfStrToPf(com::Utf8Str(rules[idxRules]).c_str(), 1, &Rule.Pfr);
963	m_vecPortForwardRule6.push_back(Rule);
964	}
965	} /* if (!fDontLoadRulesOnStartup) */
966
967	com::SafeArray<BSTR> strs;
968	int count_strs;
969	hrc = net->COMGETTER(LocalMappings)(ComSafeArrayAsOutParam(strs));
970	if ( SUCCEEDED(hrc)
971	&& (count_strs = strs.size()))
972	{
973	unsigned int j = 0;
974	int i;
975
976	for (i = 0; i < count_strs && j < RT_ELEMENTS(m_lo2off); ++i)
977	{
978	char szAddr[17];
979	RTNETADDRIPV4 ip4addr;
980	char *pszTerm;
981	uint32_t u32Off;
982	com::Utf8Str strLo2Off(strs[i]);
983	const char *pszLo2Off = strLo2Off.c_str();
984
985	RT_ZERO(szAddr);
986
987	pszTerm = RTStrStr(pszLo2Off, "=");
988
989	if ( !pszTerm
990	\|\| (pszTerm - pszLo2Off) >= 17)
991	continue;
992
993	memcpy(szAddr, pszLo2Off, (pszTerm - pszLo2Off));
994	rc = RTNetStrToIPv4Addr(szAddr, &ip4addr);
995	if (RT_FAILURE(rc))
996	continue;
997
998	u32Off = RTStrToUInt32(pszTerm + 1);
999	if (u32Off == 0)
1000	continue;
1001
1002	ip4_addr_set_u32(&m_lo2off[j].loaddr, ip4addr.u);
1003	m_lo2off[j].off = u32Off;
1004	++j;
1005	}
1006
1007	m_loOptDescriptor.lomap = m_lo2off;
1008	m_loOptDescriptor.num_lomap = j;
1009	m_ProxyOptions.lomap_desc = &m_loOptDescriptor;
1010	}
1011
1012	hrc = virtualbox->COMGETTER(HomeFolder)(bstr.asOutParam());
1013	AssertComRCReturn(hrc, VERR_NOT_FOUND);
1014	if (!bstr.isEmpty())
1015	{
1016	com::Utf8Str strTftpRoot(com::Utf8StrFmt("%ls%c%s",
1017	bstr.raw(), RTPATH_DELIMITER, "TFTP"));
1018	char pszStrTemp; // avoid const char * vs char **
1019	rc = RTStrUtf8ToCurrentCP(&pszStrTemp, strTftpRoot.c_str());
1020	AssertRC(rc);
1021	m_ProxyOptions.tftp_root = pszStrTemp;
1022	}
1023
1024	/* end of COM initialization */
1025
1026	rc = RTSemEventCreate(&hSemSVC);
1027	AssertRCReturn(rc, rc);
1028
1029	rc = RTReqQueueCreate(&hReqIntNet);
1030	AssertRCReturn(rc, rc);
1031
1032	g_pLwipNat->tryGoOnline();
1033	vboxLwipCoreInitialize(VBoxNetLwipNAT::onLwipTcpIpInit, this);
1034
1035	rc = RTThreadCreate(&g_pLwipNat->hThrIntNetRecv, /* thread handle*/
1036	VBoxNetLwipNAT::intNetThreadRecv, /* routine */
1037	NULL, /* user data */
1038	128 * _1K, /* stack size */
1039	RTTHREADTYPE_IO, /* type */
1040	0, /* flags, @todo: waitable ?*/
1041	"INTNET-RECV");
1042	AssertRCReturn(rc,rc);
1043
1044
1045
1046	LogFlowFuncLeaveRC(rc);
1047	return rc;
1048	}
1049
1050
1051	int VBoxNetLwipNAT::parseOpt(int rc, const RTGETOPTUNION& Val)
1052	{
1053	switch (rc)
1054	{
1055	case 'p':
1056	case 'P':
1057	{
1058	NATSEVICEPORTFORWARDRULE Rule;
1059	VECNATSERVICEPF& rules = (rc == 'P'?
1060	m_vecPortForwardRule6
1061	: m_vecPortForwardRule4);
1062
1063	fDontLoadRulesOnStartup = true;
1064
1065	RT_ZERO(Rule);
1066
1067	int irc = netPfStrToPf(Val.psz, (rc == 'P'), &Rule.Pfr);
1068	rules.push_back(Rule);
1069	return VINF_SUCCESS;
1070	}
1071	default:;
1072	}
1073	return VERR_NOT_FOUND;
1074	}
1075
1076
1077	int VBoxNetLwipNAT::run()
1078	{
1079	/* EventQueue processing from VBoxHeadless.cpp */
1080	com::NativeEventQueue *gEventQ = NULL;
1081	gEventQ = com::NativeEventQueue::getMainEventQueue();
1082	while(true)
1083	{
1084	/* XXX:todo: graceful termination */
1085	gEventQ->processEventQueue(0);
1086	gEventQ->processEventQueue(500);
1087	}
1088
1089	vboxLwipCoreFinalize(VBoxNetLwipNAT::onLwipTcpIpFini, this);
1090
1091	m_vecPortForwardRule4.clear();
1092	m_vecPortForwardRule6.clear();
1093
1094	return VINF_SUCCESS;
1095	}
1096
1097
1098	/**
1099	* Entry point.
1100	*/
1101	extern "C" DECLEXPORT(int) TrustedMain(int argc, char argv, char envp)
1102	{
1103	LogFlowFuncEnter();
1104
1105	NOREF(envp);
1106
1107	#ifdef RT_OS_WINDOWS
1108	WSADATA wsaData;
1109	int err;
1110
1111	err = WSAStartup(MAKEWORD(2,2), &wsaData);
1112	if (err)
1113	{
1114	fprintf(stderr, "wsastartup: failed (%d)\n", err);
1115	return 1;
1116	}
1117	#endif
1118
1119	HRESULT hrc = com::Initialize();
1120	#ifdef VBOX_WITH_XPCOM
1121	if (hrc == NS_ERROR_FILE_ACCESS_DENIED)
1122	{
1123	char szHome[RTPATH_MAX] = "";
1124	com::GetVBoxUserHomeDirectory(szHome, sizeof(szHome));
1125	return RTMsgErrorExit(RTEXITCODE_FAILURE,
1126	"Failed to initialize COM because the global settings directory '%s' is not accessible!", szHome);
1127	}
1128	#endif
1129	if (FAILED(hrc))
1130	return RTMsgErrorExit(RTEXITCODE_FAILURE, "Failed to initialize COM!");
1131
1132	g_pLwipNat = new VBoxNetLwipNAT();
1133
1134	Log2(("NAT: initialization\n"));
1135	int rc = g_pLwipNat->parseArgs(argc - 1, argv + 1);
1136	AssertRC(rc);
1137
1138
1139	if (!rc)
1140	{
1141
1142	g_pLwipNat->init();
1143	g_pLwipNat->run();
1144
1145	}
1146	delete g_pLwipNat;
1147	return 0;
1148	}
1149
1150
1151	#ifndef VBOX_WITH_HARDENING
1152
1153	int main(int argc, char argv, char envp)
1154	{
1155	int rc = RTR3InitExe(argc, &argv, RTR3INIT_FLAGS_SUPLIB);
1156	if (RT_FAILURE(rc))
1157	return RTMsgInitFailure(rc);
1158
1159	return TrustedMain(argc, argv, envp);
1160	}
1161
1162	# if defined(RT_OS_WINDOWS)
1163
1164	static LRESULT CALLBACK WindowProc(HWND hwnd,
1165	UINT uMsg,
1166	WPARAM wParam,
1167	LPARAM lParam
1168	)
1169	{
1170	if(uMsg == WM_DESTROY)
1171	{
1172	PostQuitMessage(0);
1173	return 0;
1174	}
1175	return DefWindowProc (hwnd, uMsg, wParam, lParam);
1176	}
1177
1178	static LPCWSTR g_WndClassName = L"VBoxNetNatLwipClass";
1179
1180	static DWORD WINAPI MsgThreadProc(__in LPVOID lpParameter)
1181	{
1182	HWND hwnd = 0;
1183	HINSTANCE hInstance = (HINSTANCE)GetModuleHandle (NULL);
1184	bool bExit = false;
1185
1186	/* Register the Window Class. */
1187	WNDCLASS wc;
1188	wc.style = 0;
1189	wc.lpfnWndProc = WindowProc;
1190	wc.cbClsExtra = 0;
1191	wc.cbWndExtra = sizeof(void *);
1192	wc.hInstance = hInstance;
1193	wc.hIcon = NULL;
1194	wc.hCursor = NULL;
1195	wc.hbrBackground = (HBRUSH)(COLOR_BACKGROUND + 1);
1196	wc.lpszMenuName = NULL;
1197	wc.lpszClassName = g_WndClassName;
1198
1199	ATOM atomWindowClass = RegisterClass(&wc);
1200
1201	if (atomWindowClass != 0)
1202	{
1203	/* Create the window. */
1204	hwnd = CreateWindowEx (WS_EX_TOOLWINDOW \| WS_EX_TRANSPARENT \| WS_EX_TOPMOST,
1205	g_WndClassName, g_WndClassName,
1206	WS_POPUPWINDOW,
1207	-200, -200, 100, 100, NULL, NULL, hInstance, NULL);
1208
1209	if (hwnd)
1210	{
1211	SetWindowPos(hwnd, HWND_TOPMOST, -200, -200, 0, 0,
1212	SWP_NOACTIVATE \| SWP_HIDEWINDOW \| SWP_NOCOPYBITS \| SWP_NOREDRAW \| SWP_NOSIZE);
1213
1214	MSG msg;
1215	while (GetMessage(&msg, NULL, 0, 0))
1216	{
1217	TranslateMessage(&msg);
1218	DispatchMessage(&msg);
1219	}
1220
1221	DestroyWindow (hwnd);
1222
1223	bExit = true;
1224	}
1225
1226	UnregisterClass (g_WndClassName, hInstance);
1227	}
1228
1229	if(bExit)
1230	{
1231	/* no need any accuracy here, in anyway the DHCP server usually gets terminated with TerminateProcess */
1232	exit(0);
1233	}
1234
1235	return 0;
1236	}
1237
1238
1239
1240	/** (We don't want a console usually.) */
1241	int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
1242	{
1243	#if 0
1244	NOREF(hInstance); NOREF(hPrevInstance); NOREF(lpCmdLine); NOREF(nCmdShow);
1245
1246	HANDLE hThread = CreateThread(
1247	NULL, /__in_opt LPSECURITY_ATTRIBUTES lpThreadAttributes, /
1248	0, /__in SIZE_T dwStackSize, /
1249	MsgThreadProc, /__in LPTHREAD_START_ROUTINE lpStartAddress,/
1250	NULL, /__in_opt LPVOID lpParameter,/
1251	0, /__in DWORD dwCreationFlags,/
1252	NULL /__out_opt LPDWORD lpThreadId/
1253	);
1254
1255	if(hThread != NULL)
1256	CloseHandle(hThread);
1257
1258	#endif
1259	return main(__argc, __argv, environ);
1260	}
1261	# endif /* RT_OS_WINDOWS */
1262
1263	#endif /* !VBOX_WITH_HARDENING */
1264

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source: vbox/trunk/src/VBox/NetworkServices/NAT/VBoxNetLwipNAT.cpp@ 49149

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