DrvIntNet.cpp@ 99785

Last change on this file since 99785 was 98103, checked in by vboxsync, 2 years ago
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1	/* $Id: DrvIntNet.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2	/** @file
3	* DrvIntNet - Internal network transport driver.
4	*/
5
6	/*
7	* Copyright (C) 2006-2023 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28
29	/*********************************************************************************************************************************
30	* Header Files *
31	*********************************************************************************************************************************/
32	#define LOG_GROUP LOG_GROUP_DRV_INTNET
33	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_INTNET_SERVICE_IN_R3)
34	# include <xpc/xpc.h> /* This needs to be here because it drags PVM in and cdefs.h needs to undefine it... */
35	#endif
36	#include <iprt/cdefs.h>
37
38	#include <VBox/vmm/pdmdrv.h>
39	#include <VBox/vmm/pdmnetinline.h>
40	#include <VBox/vmm/pdmnetifs.h>
41	#include <VBox/vmm/cfgm.h>
42	#include <VBox/intnet.h>
43	#include <VBox/intnetinline.h>
44	#include <VBox/vmm/vmm.h>
45	#include <VBox/sup.h>
46	#include <VBox/err.h>
47
48	#include <VBox/param.h>
49	#include <VBox/log.h>
50	#include <iprt/asm.h>
51	#include <iprt/assert.h>
52	#include <iprt/ctype.h>
53	#include <iprt/memcache.h>
54	#include <iprt/net.h>
55	#include <iprt/semaphore.h>
56	#include <iprt/string.h>
57	#include <iprt/time.h>
58	#include <iprt/thread.h>
59	#include <iprt/uuid.h>
60	#if defined(RT_OS_DARWIN) && defined(IN_RING3)
61	# include <iprt/system.h>
62	#endif
63
64	#include "VBoxDD.h"
65
66
67	/*********************************************************************************************************************************
68	* Defined Constants And Macros *
69	*********************************************************************************************************************************/
70	#if 0
71	/** Enables the ring-0 part. */
72	#define VBOX_WITH_DRVINTNET_IN_R0
73	#endif
74
75
76	/*********************************************************************************************************************************
77	* Structures and Typedefs *
78	*********************************************************************************************************************************/
79	/**
80	* The state of the asynchronous thread.
81	*/
82	typedef enum RECVSTATE
83	{
84	/** The thread is suspended. */
85	RECVSTATE_SUSPENDED = 1,
86	/** The thread is running. */
87	RECVSTATE_RUNNING,
88	/** The thread must (/has) terminate. */
89	RECVSTATE_TERMINATE,
90	/** The usual 32-bit type blowup. */
91	RECVSTATE_32BIT_HACK = 0x7fffffff
92	} RECVSTATE;
93
94	/**
95	* Internal networking driver instance data.
96	*
97	* @implements PDMINETWORKUP
98	*/
99	typedef struct DRVINTNET
100	{
101	/** The network interface. */
102	PDMINETWORKUP INetworkUpR3;
103	/** The network interface. */
104	R3PTRTYPE(PPDMINETWORKDOWN) pIAboveNet;
105	/** The network config interface.
106	* Can (in theory at least) be NULL. */
107	R3PTRTYPE(PPDMINETWORKCONFIG) pIAboveConfigR3;
108	/** Pointer to the driver instance (ring-3). */
109	PPDMDRVINSR3 pDrvInsR3;
110	/** Pointer to the communication buffer (ring-3). */
111	R3PTRTYPE(PINTNETBUF) pBufR3;
112	#ifdef VBOX_WITH_DRVINTNET_IN_R0
113	/** Ring-3 base interface for the ring-0 context. */
114	PDMIBASER0 IBaseR0;
115	/** Ring-3 base interface for the raw-mode context. */
116	PDMIBASERC IBaseRC;
117	RTR3PTR R3PtrAlignment;
118
119	/** The network interface for the ring-0 context. */
120	PDMINETWORKUPR0 INetworkUpR0;
121	/** Pointer to the driver instance (ring-0). */
122	PPDMDRVINSR0 pDrvInsR0;
123	/** Pointer to the communication buffer (ring-0). */
124	R0PTRTYPE(PINTNETBUF) pBufR0;
125
126	/** The network interface for the raw-mode context. */
127	PDMINETWORKUPRC INetworkUpRC;
128	/** Pointer to the driver instance. */
129	PPDMDRVINSRC pDrvInsRC;
130	RTRCPTR RCPtrAlignment;
131	#endif
132
133	/** The transmit lock. */
134	PDMCRITSECT XmitLock;
135	/** Interface handle. */
136	INTNETIFHANDLE hIf;
137	/** The receive thread state. */
138	RECVSTATE volatile enmRecvState;
139	/** The receive thread. */
140	RTTHREAD hRecvThread;
141	/** The event semaphore that the receive thread waits on. */
142	RTSEMEVENT hRecvEvt;
143	/** The transmit thread. */
144	PPDMTHREAD pXmitThread;
145	/** The event semaphore that the transmit thread waits on. */
146	SUPSEMEVENT hXmitEvt;
147	/** The support driver session handle. */
148	PSUPDRVSESSION pSupDrvSession;
149	/** Scatter/gather descriptor cache. */
150	RTMEMCACHE hSgCache;
151	/** Set if the link is down.
152	* When the link is down all incoming packets will be dropped. */
153	bool volatile fLinkDown;
154	/** Set when the xmit thread has been signalled. (atomic) */
155	bool volatile fXmitSignalled;
156	/** Set if the transmit thread the one busy transmitting. */
157	bool volatile fXmitOnXmitThread;
158	/** The xmit thread should process the ring ASAP. */
159	bool fXmitProcessRing;
160	/** Set if data transmission should start immediately and deactivate
161	* as late as possible. */
162	bool fActivateEarlyDeactivateLate;
163	/** Padding. */
164	bool afReserved[HC_ARCH_BITS == 64 ? 3 : 3];
165	/** Scratch space for holding the ring-0 scatter / gather descriptor.
166	* The PDMSCATTERGATHER::fFlags member is used to indicate whether it is in
167	* use or not. Always accessed while owning the XmitLock. */
168	union
169	{
170	PDMSCATTERGATHER Sg;
171	uint8_t padding[8 * sizeof(RTUINTPTR)];
172	} u;
173	/** The network name. */
174	char szNetwork[INTNET_MAX_NETWORK_NAME];
175
176	/** Number of GSO packets sent. */
177	STAMCOUNTER StatSentGso;
178	/** Number of GSO packets received. */
179	STAMCOUNTER StatReceivedGso;
180	/** Number of packets send from ring-0. */
181	STAMCOUNTER StatSentR0;
182	/** The number of times we've had to wake up the xmit thread to continue the
183	* ring-0 job. */
184	STAMCOUNTER StatXmitWakeupR0;
185	/** The number of times we've had to wake up the xmit thread to continue the
186	* ring-3 job. */
187	STAMCOUNTER StatXmitWakeupR3;
188	/** The times the xmit thread has been told to process the ring. */
189	STAMCOUNTER StatXmitProcessRing;
190	#ifdef VBOX_WITH_STATISTICS
191	/** Profiling packet transmit runs. */
192	STAMPROFILE StatTransmit;
193	/** Profiling packet receive runs. */
194	STAMPROFILEADV StatReceive;
195	#endif /* VBOX_WITH_STATISTICS */
196	#ifdef LOG_ENABLED
197	/** The nano ts of the last transfer. */
198	uint64_t u64LastTransferTS;
199	/** The nano ts of the last receive. */
200	uint64_t u64LastReceiveTS;
201	#endif
202	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_INTNET_SERVICE_IN_R3)
203	/** XPC connection handle to the R3 internal network switch service. */
204	xpc_connection_t hXpcCon;
205	/** Flag whether the R3 internal network service is being used. */
206	bool fIntNetR3Svc;
207	/** Size of the communication buffer in bytes. */
208	size_t cbBuf;
209	#endif
210	} DRVINTNET;
211	AssertCompileMemberAlignment(DRVINTNET, XmitLock, 8);
212	AssertCompileMemberAlignment(DRVINTNET, StatSentGso, 8);
213	/** Pointer to instance data of the internal networking driver. */
214	typedef DRVINTNET *PDRVINTNET;
215
216	/**
217	* Config value to flag translation structure.
218	*/
219	typedef struct DRVINTNETFLAG
220	{
221	/** The value. */
222	const char *pszChoice;
223	/** The corresponding flag. */
224	uint32_t fFlag;
225	} DRVINTNETFLAG;
226	/** Pointer to a const flag value translation. */
227	typedef DRVINTNETFLAG const *PCDRVINTNETFLAG;
228
229
230	#ifdef IN_RING3
231
232
233	/**
234	* Calls the internal networking switch service living in either R0 or in another R3 process.
235	*
236	* @returns VBox status code.
237	* @param pThis The internal network driver instance data.
238	* @param uOperation The operation to execute.
239	* @param pvArg Pointer to the argument data.
240	* @param cbArg Size of the argument data in bytes.
241	*/
242	static int drvR3IntNetCallSvc(PDRVINTNET pThis, uint32_t uOperation, void *pvArg, unsigned cbArg)
243	{
244	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_INTNET_SERVICE_IN_R3)
245	if (pThis->fIntNetR3Svc)
246	{
247	xpc_object_t hObj = xpc_dictionary_create(NULL, NULL, 0);
248	xpc_dictionary_set_uint64(hObj, "req-id", uOperation);
249	xpc_dictionary_set_data(hObj, "req", pvArg, cbArg);
250	xpc_object_t hObjReply = xpc_connection_send_message_with_reply_sync(pThis->hXpcCon, hObj);
251	uint64_t u64Rc = xpc_dictionary_get_uint64(hObjReply, "rc");
252	if (INTNET_R3_SVC_IS_VALID_RC(u64Rc))
253	{
254	size_t cbReply = 0;
255	const void *pvData = xpc_dictionary_get_data(hObjReply, "reply", &cbReply);
256	AssertRelease(cbReply == cbArg);
257	memcpy(pvArg, pvData, cbArg);
258	xpc_release(hObjReply);
259
260	return INTNET_R3_SVC_GET_RC(u64Rc);
261	}
262
263	xpc_release(hObjReply);
264	return VERR_INVALID_STATE;
265	}
266	else
267	#endif
268	return PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, uOperation, pvArg, cbArg);
269	}
270
271
272	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_INTNET_SERVICE_IN_R3)
273	/**
274	* Calls the internal networking switch service living in either R0 or in another R3 process.
275	*
276	* @returns VBox status code.
277	* @param pThis The internal network driver instance data.
278	* @param uOperation The operation to execute.
279	* @param pvArg Pointer to the argument data.
280	* @param cbArg Size of the argument data in bytes.
281	*/
282	static int drvR3IntNetCallSvcAsync(PDRVINTNET pThis, uint32_t uOperation, void *pvArg, unsigned cbArg)
283	{
284	if (pThis->fIntNetR3Svc)
285	{
286	xpc_object_t hObj = xpc_dictionary_create(NULL, NULL, 0);
287	xpc_dictionary_set_uint64(hObj, "req-id", uOperation);
288	xpc_dictionary_set_data(hObj, "req", pvArg, cbArg);
289	xpc_connection_send_message(pThis->hXpcCon, hObj);
290	return VINF_SUCCESS;
291	}
292	else
293	return PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, uOperation, pvArg, cbArg);
294	}
295	#endif
296
297
298	/**
299	* Map the ring buffer pointer into this process R3 address space.
300	*
301	* @returns VBox status code.
302	* @param pThis The internal network driver instance data.
303	*/
304	static int drvR3IntNetMapBufferPointers(PDRVINTNET pThis)
305	{
306	int rc = VINF_SUCCESS;
307
308	INTNETIFGETBUFFERPTRSREQ GetBufferPtrsReq;
309	GetBufferPtrsReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
310	GetBufferPtrsReq.Hdr.cbReq = sizeof(GetBufferPtrsReq);
311	GetBufferPtrsReq.pSession = NIL_RTR0PTR;
312	GetBufferPtrsReq.hIf = pThis->hIf;
313	GetBufferPtrsReq.pRing3Buf = NULL;
314	GetBufferPtrsReq.pRing0Buf = NIL_RTR0PTR;
315
316	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_INTNET_SERVICE_IN_R3)
317	if (pThis->fIntNetR3Svc)
318	{
319	xpc_object_t hObj = xpc_dictionary_create(NULL, NULL, 0);
320	xpc_dictionary_set_uint64(hObj, "req-id", VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS);
321	xpc_dictionary_set_data(hObj, "req", &GetBufferPtrsReq, sizeof(GetBufferPtrsReq));
322	xpc_object_t hObjReply = xpc_connection_send_message_with_reply_sync(pThis->hXpcCon, hObj);
323	uint64_t u64Rc = xpc_dictionary_get_uint64(hObjReply, "rc");
324	if (INTNET_R3_SVC_IS_VALID_RC(u64Rc))
325	rc = INTNET_R3_SVC_GET_RC(u64Rc);
326	else
327	rc = VERR_INVALID_STATE;
328
329	if (RT_SUCCESS(rc))
330	{
331	/* Get the shared memory object. */
332	xpc_object_t hObjShMem = xpc_dictionary_get_value(hObjReply, "buf-ptr");
333	size_t cbMem = xpc_shmem_map(hObjShMem, (void **)&pThis->pBufR3);
334	if (!cbMem)
335	rc = VERR_NO_MEMORY;
336	else
337	pThis->cbBuf = cbMem;
338	}
339
340	xpc_release(hObjReply);
341	}
342	else
343	#endif
344	{
345	rc = PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS, &GetBufferPtrsReq, sizeof(GetBufferPtrsReq));
346	if (RT_SUCCESS(rc))
347	{
348	AssertRelease(RT_VALID_PTR(GetBufferPtrsReq.pRing3Buf));
349	pThis->pBufR3 = GetBufferPtrsReq.pRing3Buf;
350	#ifdef VBOX_WITH_DRVINTNET_IN_R0
351	pThis->pBufR0 = GetBufferPtrsReq.pRing0Buf;
352	#endif
353	}
354	}
355
356	return rc;
357	}
358
359
360	/**
361	* Updates the MAC address on the kernel side.
362	*
363	* @returns VBox status code.
364	* @param pThis The driver instance.
365	*/
366	static int drvR3IntNetUpdateMacAddress(PDRVINTNET pThis)
367	{
368	if (!pThis->pIAboveConfigR3)
369	return VINF_SUCCESS;
370
371	INTNETIFSETMACADDRESSREQ SetMacAddressReq;
372	SetMacAddressReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
373	SetMacAddressReq.Hdr.cbReq = sizeof(SetMacAddressReq);
374	SetMacAddressReq.pSession = NIL_RTR0PTR;
375	SetMacAddressReq.hIf = pThis->hIf;
376	int rc = pThis->pIAboveConfigR3->pfnGetMac(pThis->pIAboveConfigR3, &SetMacAddressReq.Mac);
377	if (RT_SUCCESS(rc))
378	rc = drvR3IntNetCallSvc(pThis, VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS,
379	&SetMacAddressReq, sizeof(SetMacAddressReq));
380
381	Log(("drvR3IntNetUpdateMacAddress: %.*Rhxs rc=%Rrc\n", sizeof(SetMacAddressReq.Mac), &SetMacAddressReq.Mac, rc));
382	return rc;
383	}
384
385
386	/**
387	* Sets the kernel interface active or inactive.
388	*
389	* Worker for poweron, poweroff, suspend and resume.
390	*
391	* @returns VBox status code.
392	* @param pThis The driver instance.
393	* @param fActive The new state.
394	*/
395	static int drvR3IntNetSetActive(PDRVINTNET pThis, bool fActive)
396	{
397	if (!pThis->pIAboveConfigR3)
398	return VINF_SUCCESS;
399
400	INTNETIFSETACTIVEREQ SetActiveReq;
401	SetActiveReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
402	SetActiveReq.Hdr.cbReq = sizeof(SetActiveReq);
403	SetActiveReq.pSession = NIL_RTR0PTR;
404	SetActiveReq.hIf = pThis->hIf;
405	SetActiveReq.fActive = fActive;
406	int rc = drvR3IntNetCallSvc(pThis, VMMR0_DO_INTNET_IF_SET_ACTIVE,
407	&SetActiveReq, sizeof(SetActiveReq));
408
409	Log(("drvR3IntNetSetActive: fActive=%d rc=%Rrc\n", fActive, rc));
410	AssertRC(rc);
411	return rc;
412	}
413
414	#endif /* IN_RING3 */
415
416	/* -=-=-=-=- PDMINETWORKUP -=-=-=-=- */
417
418	#ifndef IN_RING3
419	/**
420	* Helper for signalling the xmit thread.
421	*
422	* @returns VERR_TRY_AGAIN (convenience).
423	* @param pThis The instance data..
424	*/
425	DECLINLINE(int) drvR0IntNetSignalXmit(PDRVINTNET pThis)
426	{
427	/// @todo if (!ASMAtomicXchgBool(&pThis->fXmitSignalled, true)) - needs careful optimizing.
428	{
429	int rc = SUPSemEventSignal(pThis->pSupDrvSession, pThis->hXmitEvt);
430	AssertRC(rc);
431	STAM_REL_COUNTER_INC(&pThis->CTX_SUFF(StatXmitWakeup));
432	}
433	return VERR_TRY_AGAIN;
434	}
435	#endif /* !IN_RING3 */
436
437
438	/**
439	* Helper for processing the ring-0 consumer side of the xmit ring.
440	*
441	* The caller MUST own the xmit lock.
442	*
443	* @returns Status code from IntNetR0IfSend, except for VERR_TRY_AGAIN.
444	* @param pThis The instance data..
445	*/
446	DECLINLINE(int) drvIntNetProcessXmit(PDRVINTNET pThis)
447	{
448	Assert(PDMDrvHlpCritSectIsOwner(pThis->CTX_SUFF(pDrvIns), &pThis->XmitLock));
449
450	#ifdef IN_RING3
451	INTNETIFSENDREQ SendReq;
452	SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
453	SendReq.Hdr.cbReq = sizeof(SendReq);
454	SendReq.pSession = NIL_RTR0PTR;
455	SendReq.hIf = pThis->hIf;
456	int rc = drvR3IntNetCallSvc(pThis, VMMR0_DO_INTNET_IF_SEND, &SendReq, sizeof(SendReq));
457	#else
458	int rc = IntNetR0IfSend(pThis->hIf, pThis->pSupDrvSession);
459	if (rc == VERR_TRY_AGAIN)
460	{
461	ASMAtomicUoWriteBool(&pThis->fXmitProcessRing, true);
462	drvR0IntNetSignalXmit(pThis);
463	rc = VINF_SUCCESS;
464	}
465	#endif
466	return rc;
467	}
468
469
470
471	/**
472	* @interface_method_impl{PDMINETWORKUP,pfnBeginXmit}
473	*/
474	PDMBOTHCBDECL(int) drvIntNetUp_BeginXmit(PPDMINETWORKUP pInterface, bool fOnWorkerThread)
475	{
476	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp));
477	#ifndef IN_RING3
478	Assert(!fOnWorkerThread);
479	#endif
480
481	int rc = PDMDrvHlpCritSectTryEnter(pThis->CTX_SUFF(pDrvIns), &pThis->XmitLock);
482	if (RT_SUCCESS(rc))
483	{
484	if (fOnWorkerThread)
485	{
486	ASMAtomicUoWriteBool(&pThis->fXmitOnXmitThread, true);
487	ASMAtomicWriteBool(&pThis->fXmitSignalled, false);
488	}
489	}
490	else if (rc == VERR_SEM_BUSY)
491	{
492	/** @todo Does this actually make sense if the other dude is an EMT and so
493	* forth? I seriously think this is ring-0 only...
494	* We might end up waking up the xmit thread unnecessarily here, even when in
495	* ring-0... This needs some more thought and optimizations when the ring-0 bits
496	* are working. */
497	#ifdef IN_RING3
498	if ( !fOnWorkerThread
499	/*&& !ASMAtomicUoReadBool(&pThis->fXmitOnXmitThread)
500	&& ASMAtomicCmpXchgBool(&pThis->fXmitSignalled, true, false)*/)
501	{
502	rc = SUPSemEventSignal(pThis->pSupDrvSession, pThis->hXmitEvt);
503	AssertRC(rc);
504	}
505	rc = VERR_TRY_AGAIN;
506	#else /* IN_RING0 */
507	rc = drvR0IntNetSignalXmit(pThis);
508	#endif /* IN_RING0 */
509	}
510	return rc;
511	}
512
513
514	/**
515	* @interface_method_impl{PDMINETWORKUP,pfnAllocBuf}
516	*/
517	PDMBOTHCBDECL(int) drvIntNetUp_AllocBuf(PPDMINETWORKUP pInterface, size_t cbMin,
518	PCPDMNETWORKGSO pGso, PPPDMSCATTERGATHER ppSgBuf)
519	{
520	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp));
521	int rc = VINF_SUCCESS;
522	Assert(cbMin < UINT32_MAX / 2);
523	Assert(PDMDrvHlpCritSectIsOwner(pThis->CTX_SUFF(pDrvIns), &pThis->XmitLock));
524
525	/*
526	* Allocate a S/G descriptor.
527	* This shouldn't normally fail as the NICs usually won't allocate more
528	* than one buffer at a time and the SG gets freed on sending.
529	*/
530	#ifdef IN_RING3
531	PPDMSCATTERGATHER pSgBuf = (PPDMSCATTERGATHER)RTMemCacheAlloc(pThis->hSgCache);
532	if (!pSgBuf)
533	return VERR_NO_MEMORY;
534	#else
535	PPDMSCATTERGATHER pSgBuf = &pThis->u.Sg;
536	if (RT_UNLIKELY(pSgBuf->fFlags != 0))
537	return drvR0IntNetSignalXmit(pThis);
538	#endif
539
540	/*
541	* Allocate room in the ring buffer.
542	*
543	* In ring-3 we may have to process the xmit ring before there is
544	* sufficient buffer space since we might have stacked up a few frames to the
545	* trunk while in ring-0. (There is not point of doing this in ring-0.)
546	*/
547	PINTNETHDR pHdr = NULL; /* gcc silliness */
548	if (pGso)
549	rc = IntNetRingAllocateGsoFrame(&pThis->CTX_SUFF(pBuf)->Send, (uint32_t)cbMin, pGso,
550	&pHdr, &pSgBuf->aSegs[0].pvSeg);
551	else
552	rc = IntNetRingAllocateFrame(&pThis->CTX_SUFF(pBuf)->Send, (uint32_t)cbMin,
553	&pHdr, &pSgBuf->aSegs[0].pvSeg);
554	#ifdef IN_RING3
555	if ( RT_FAILURE(rc)
556	&& pThis->CTX_SUFF(pBuf)->cbSend >= cbMin * 2 + sizeof(INTNETHDR))
557	{
558	drvIntNetProcessXmit(pThis);
559	if (pGso)
560	rc = IntNetRingAllocateGsoFrame(&pThis->CTX_SUFF(pBuf)->Send, (uint32_t)cbMin, pGso,
561	&pHdr, &pSgBuf->aSegs[0].pvSeg);
562	else
563	rc = IntNetRingAllocateFrame(&pThis->CTX_SUFF(pBuf)->Send, (uint32_t)cbMin,
564	&pHdr, &pSgBuf->aSegs[0].pvSeg);
565	}
566	#endif
567	if (RT_SUCCESS(rc))
568	{
569	/*
570	* Set up the S/G descriptor and return successfully.
571	*/
572	pSgBuf->fFlags = PDMSCATTERGATHER_FLAGS_MAGIC \| PDMSCATTERGATHER_FLAGS_OWNER_1;
573	pSgBuf->cbUsed = 0;
574	pSgBuf->cbAvailable = cbMin;
575	pSgBuf->pvAllocator = pHdr;
576	pSgBuf->pvUser = pGso ? (PPDMNETWORKGSO)pSgBuf->aSegs[0].pvSeg - 1 : NULL;
577	pSgBuf->cSegs = 1;
578	pSgBuf->aSegs[0].cbSeg = cbMin;
579
580	*ppSgBuf = pSgBuf;
581	return VINF_SUCCESS;
582	}
583
584	#ifdef IN_RING3
585	/*
586	* If the above fails, then we're really out of space. There are nobody
587	* competing with us here because of the xmit lock.
588	*/
589	rc = VERR_NO_MEMORY;
590	RTMemCacheFree(pThis->hSgCache, pSgBuf);
591
592	#else /* IN_RING0 */
593	/*
594	* If the request is reasonable, kick the xmit thread and tell it to
595	* process the xmit ring ASAP.
596	*/
597	if (pThis->CTX_SUFF(pBuf)->cbSend >= cbMin * 2 + sizeof(INTNETHDR))
598	{
599	pThis->fXmitProcessRing = true;
600	rc = drvR0IntNetSignalXmit(pThis);
601	}
602	else
603	rc = VERR_NO_MEMORY;
604	pSgBuf->fFlags = 0;
605	#endif /* IN_RING0 */
606	return rc;
607	}
608
609
610	/**
611	* @interface_method_impl{PDMINETWORKUP,pfnFreeBuf}
612	*/
613	PDMBOTHCBDECL(int) drvIntNetUp_FreeBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf)
614	{
615	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp));
616	PINTNETHDR pHdr = (PINTNETHDR)pSgBuf->pvAllocator;
617	#ifdef IN_RING0
618	Assert(pSgBuf == &pThis->u.Sg);
619	#endif
620	Assert(pSgBuf->fFlags == (PDMSCATTERGATHER_FLAGS_MAGIC \| PDMSCATTERGATHER_FLAGS_OWNER_1));
621	Assert(pSgBuf->cbUsed <= pSgBuf->cbAvailable);
622	Assert( pHdr->u8Type == INTNETHDR_TYPE_FRAME
623	\|\| pHdr->u8Type == INTNETHDR_TYPE_GSO);
624	Assert(PDMDrvHlpCritSectIsOwner(pThis->CTX_SUFF(pDrvIns), &pThis->XmitLock));
625
626	/** @todo LATER: try unalloc the frame. */
627	pHdr->u8Type = INTNETHDR_TYPE_PADDING;
628	IntNetRingCommitFrame(&pThis->CTX_SUFF(pBuf)->Send, pHdr);
629
630	#ifdef IN_RING3
631	RTMemCacheFree(pThis->hSgCache, pSgBuf);
632	#else
633	pSgBuf->fFlags = 0;
634	#endif
635	return VINF_SUCCESS;
636	}
637
638
639	/**
640	* @interface_method_impl{PDMINETWORKUP,pfnSendBuf}
641	*/
642	PDMBOTHCBDECL(int) drvIntNetUp_SendBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf, bool fOnWorkerThread)
643	{
644	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp));
645	STAM_PROFILE_START(&pThis->StatTransmit, a);
646	RT_NOREF_PV(fOnWorkerThread);
647
648	AssertPtr(pSgBuf);
649	Assert(pSgBuf->fFlags == (PDMSCATTERGATHER_FLAGS_MAGIC \| PDMSCATTERGATHER_FLAGS_OWNER_1));
650	Assert(pSgBuf->cbUsed <= pSgBuf->cbAvailable);
651	Assert(PDMDrvHlpCritSectIsOwner(pThis->CTX_SUFF(pDrvIns), &pThis->XmitLock));
652
653	if (pSgBuf->pvUser)
654	STAM_COUNTER_INC(&pThis->StatSentGso);
655
656	/*
657	* Commit the frame and push it thru the switch.
658	*/
659	PINTNETHDR pHdr = (PINTNETHDR)pSgBuf->pvAllocator;
660	IntNetRingCommitFrameEx(&pThis->CTX_SUFF(pBuf)->Send, pHdr, pSgBuf->cbUsed);
661	int rc = drvIntNetProcessXmit(pThis);
662	STAM_PROFILE_STOP(&pThis->StatTransmit, a);
663
664	/*
665	* Free the descriptor and return.
666	*/
667	#ifdef IN_RING3
668	RTMemCacheFree(pThis->hSgCache, pSgBuf);
669	#else
670	STAM_REL_COUNTER_INC(&pThis->StatSentR0);
671	pSgBuf->fFlags = 0;
672	#endif
673	return rc;
674	}
675
676
677	/**
678	* @interface_method_impl{PDMINETWORKUP,pfnEndXmit}
679	*/
680	PDMBOTHCBDECL(void) drvIntNetUp_EndXmit(PPDMINETWORKUP pInterface)
681	{
682	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp));
683	ASMAtomicUoWriteBool(&pThis->fXmitOnXmitThread, false);
684	PDMDrvHlpCritSectLeave(pThis->CTX_SUFF(pDrvIns), &pThis->XmitLock);
685	}
686
687
688	/**
689	* @interface_method_impl{PDMINETWORKUP,pfnSetPromiscuousMode}
690	*/
691	PDMBOTHCBDECL(void) drvIntNetUp_SetPromiscuousMode(PPDMINETWORKUP pInterface, bool fPromiscuous)
692	{
693	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp));
694
695	#ifdef IN_RING3
696	INTNETIFSETPROMISCUOUSMODEREQ Req;
697	Req.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
698	Req.Hdr.cbReq = sizeof(Req);
699	Req.pSession = NIL_RTR0PTR;
700	Req.hIf = pThis->hIf;
701	Req.fPromiscuous = fPromiscuous;
702	int rc = drvR3IntNetCallSvc(pThis, VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE, &Req, sizeof(Req));
703	#else /* IN_RING0 */
704	int rc = IntNetR0IfSetPromiscuousMode(pThis->hIf, pThis->pSupDrvSession, fPromiscuous);
705	#endif /* IN_RING0 */
706
707	LogFlow(("drvIntNetUp_SetPromiscuousMode: fPromiscuous=%RTbool\n", fPromiscuous));
708	AssertRC(rc);
709	}
710
711	#ifdef IN_RING3
712
713	/**
714	* @interface_method_impl{PDMINETWORKUP,pfnNotifyLinkChanged}
715	*/
716	static DECLCALLBACK(void) drvR3IntNetUp_NotifyLinkChanged(PPDMINETWORKUP pInterface, PDMNETWORKLINKSTATE enmLinkState)
717	{
718	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp));
719	bool fLinkDown;
720	switch (enmLinkState)
721	{
722	case PDMNETWORKLINKSTATE_DOWN:
723	case PDMNETWORKLINKSTATE_DOWN_RESUME:
724	fLinkDown = true;
725	break;
726	default:
727	AssertMsgFailed(("enmLinkState=%d\n", enmLinkState));
728	RT_FALL_THRU();
729	case PDMNETWORKLINKSTATE_UP:
730	fLinkDown = false;
731	break;
732	}
733	LogFlow(("drvR3IntNetUp_NotifyLinkChanged: enmLinkState=%d %d->%d\n", enmLinkState, pThis->fLinkDown, fLinkDown));
734	ASMAtomicXchgSize(&pThis->fLinkDown, fLinkDown);
735	}
736
737
738	/* -=-=-=-=- Transmit Thread -=-=-=-=- */
739
740	/**
741	* Async I/O thread for deferred packet transmission.
742	*
743	* @returns VBox status code. Returning failure will naturally terminate the thread.
744	* @param pDrvIns The internal networking driver instance.
745	* @param pThread The thread.
746	*/
747	static DECLCALLBACK(int) drvR3IntNetXmitThread(PPDMDRVINS pDrvIns, PPDMTHREAD pThread)
748	{
749	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
750
751	while (pThread->enmState == PDMTHREADSTATE_RUNNING)
752	{
753	/*
754	* Transmit any pending packets.
755	*/
756	/** @todo Optimize this. We shouldn't call pfnXmitPending unless asked for.
757	* Also there is no need to call drvIntNetProcessXmit if we also
758	* called pfnXmitPending and send one or more frames. */
759	if (ASMAtomicXchgBool(&pThis->fXmitProcessRing, false))
760	{
761	STAM_REL_COUNTER_INC(&pThis->StatXmitProcessRing);
762	PDMDrvHlpCritSectEnter(pDrvIns, &pThis->XmitLock, VERR_IGNORED);
763	drvIntNetProcessXmit(pThis);
764	PDMDrvHlpCritSectLeave(pDrvIns, &pThis->XmitLock);
765	}
766
767	pThis->pIAboveNet->pfnXmitPending(pThis->pIAboveNet);
768
769	if (ASMAtomicXchgBool(&pThis->fXmitProcessRing, false))
770	{
771	STAM_REL_COUNTER_INC(&pThis->StatXmitProcessRing);
772	PDMDrvHlpCritSectEnter(pDrvIns, &pThis->XmitLock, VERR_IGNORED);
773	drvIntNetProcessXmit(pThis);
774	PDMDrvHlpCritSectLeave(pDrvIns, &pThis->XmitLock);
775	}
776
777	/*
778	* Block until we've got something to send or is supposed
779	* to leave the running state.
780	*/
781	int rc = SUPSemEventWaitNoResume(pThis->pSupDrvSession, pThis->hXmitEvt, RT_INDEFINITE_WAIT);
782	AssertLogRelMsgReturn(RT_SUCCESS(rc) \|\| rc == VERR_INTERRUPTED, ("%Rrc\n", rc), rc);
783	if (RT_UNLIKELY(pThread->enmState != PDMTHREADSTATE_RUNNING))
784	break;
785
786	}
787
788	/* The thread is being initialized, suspended or terminated. */
789	return VINF_SUCCESS;
790	}
791
792
793	/**
794	* @copydoc FNPDMTHREADWAKEUPDRV
795	*/
796	static DECLCALLBACK(int) drvR3IntNetXmitWakeUp(PPDMDRVINS pDrvIns, PPDMTHREAD pThread)
797	{
798	RT_NOREF(pThread);
799	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
800	return SUPSemEventSignal(pThis->pSupDrvSession, pThis->hXmitEvt);
801	}
802
803
804	/* -=-=-=-=- Receive Thread -=-=-=-=- */
805
806	/**
807	* Wait for space to become available up the driver/device chain.
808	*
809	* @returns VINF_SUCCESS if space is available.
810	* @returns VERR_STATE_CHANGED if the state changed.
811	* @returns VBox status code on other errors.
812	* @param pThis Pointer to the instance data.
813	*/
814	static int drvR3IntNetRecvWaitForSpace(PDRVINTNET pThis)
815	{
816	LogFlow(("drvR3IntNetRecvWaitForSpace:\n"));
817	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
818	int rc = pThis->pIAboveNet->pfnWaitReceiveAvail(pThis->pIAboveNet, RT_INDEFINITE_WAIT);
819	STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
820	LogFlow(("drvR3IntNetRecvWaitForSpace: returns %Rrc\n", rc));
821	return rc;
822	}
823
824
825	/**
826	* Executes async I/O (RUNNING mode).
827	*
828	* @returns VERR_STATE_CHANGED if the state changed.
829	* @returns Appropriate VBox status code (error) on fatal error.
830	* @param pThis The driver instance data.
831	*/
832	static int drvR3IntNetRecvRun(PDRVINTNET pThis)
833	{
834	LogFlow(("drvR3IntNetRecvRun: pThis=%p\n", pThis));
835
836	/*
837	* The running loop - processing received data and waiting for more to arrive.
838	*/
839	STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
840	PINTNETBUF pBuf = pThis->CTX_SUFF(pBuf);
841	PINTNETRINGBUF pRingBuf = &pBuf->Recv;
842	for (;;)
843	{
844	/*
845	* Process the receive buffer.
846	*/
847	PINTNETHDR pHdr;
848	while ((pHdr = IntNetRingGetNextFrameToRead(pRingBuf)) != NULL)
849	{
850	/*
851	* Check the state and then inspect the packet.
852	*/
853	if (pThis->enmRecvState != RECVSTATE_RUNNING)
854	{
855	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
856	LogFlow(("drvR3IntNetRecvRun: returns VERR_STATE_CHANGED (state changed - #0)\n"));
857	return VERR_STATE_CHANGED;
858	}
859
860	Log2(("pHdr=%p offRead=%#x: %.8Rhxs\n", pHdr, pRingBuf->offReadX, pHdr));
861	uint8_t u8Type = pHdr->u8Type;
862	if ( ( u8Type == INTNETHDR_TYPE_FRAME
863	\|\| u8Type == INTNETHDR_TYPE_GSO)
864	&& !pThis->fLinkDown)
865	{
866	/*
867	* Check if there is room for the frame and pass it up.
868	*/
869	size_t cbFrame = pHdr->cbFrame;
870	int rc = pThis->pIAboveNet->pfnWaitReceiveAvail(pThis->pIAboveNet, 0);
871	if (rc == VINF_SUCCESS)
872	{
873	if (u8Type == INTNETHDR_TYPE_FRAME)
874	{
875	/*
876	* Normal frame.
877	*/
878	#ifdef LOG_ENABLED
879	if (LogIsEnabled())
880	{
881	uint64_t u64Now = RTTimeProgramNanoTS();
882	LogFlow(("drvR3IntNetRecvRun: %-4d bytes at %llu ns deltas: r=%llu t=%llu\n",
883	cbFrame, u64Now, u64Now - pThis->u64LastReceiveTS, u64Now - pThis->u64LastTransferTS));
884	pThis->u64LastReceiveTS = u64Now;
885	Log2(("drvR3IntNetRecvRun: cbFrame=%#x\n"
886	"%.*Rhxd\n",
887	cbFrame, cbFrame, IntNetHdrGetFramePtr(pHdr, pBuf)));
888	}
889	#endif
890	rc = pThis->pIAboveNet->pfnReceive(pThis->pIAboveNet, IntNetHdrGetFramePtr(pHdr, pBuf), cbFrame);
891	AssertRC(rc);
892
893	/* skip to the next frame. */
894	IntNetRingSkipFrame(pRingBuf);
895	}
896	else
897	{
898	/*
899	* Generic segment offload frame (INTNETHDR_TYPE_GSO).
900	*/
901	STAM_COUNTER_INC(&pThis->StatReceivedGso);
902	PCPDMNETWORKGSO pGso = IntNetHdrGetGsoContext(pHdr, pBuf);
903	if (PDMNetGsoIsValid(pGso, cbFrame, cbFrame - sizeof(PDMNETWORKGSO)))
904	{
905	if ( !pThis->pIAboveNet->pfnReceiveGso
906	\|\| RT_FAILURE(pThis->pIAboveNet->pfnReceiveGso(pThis->pIAboveNet,
907	(uint8_t *)(pGso + 1),
908	pHdr->cbFrame - sizeof(PDMNETWORKGSO),
909	pGso)))
910	{
911	/*
912	* This is where we do the offloading since this NIC
913	* does not support large receive offload (LRO).
914	*/
915	cbFrame -= sizeof(PDMNETWORKGSO);
916
917	uint8_t abHdrScratch[256];
918	uint32_t const cSegs = PDMNetGsoCalcSegmentCount(pGso, cbFrame);
919	#ifdef LOG_ENABLED
920	if (LogIsEnabled())
921	{
922	uint64_t u64Now = RTTimeProgramNanoTS();
923	LogFlow(("drvR3IntNetRecvRun: %-4d bytes at %llu ns deltas: r=%llu t=%llu; GSO - %u segs\n",
924	cbFrame, u64Now, u64Now - pThis->u64LastReceiveTS, u64Now - pThis->u64LastTransferTS, cSegs));
925	pThis->u64LastReceiveTS = u64Now;
926	Log2(("drvR3IntNetRecvRun: cbFrame=%#x type=%d cbHdrsTotal=%#x cbHdrsSeg=%#x Hdr1=%#x Hdr2=%#x MMS=%#x\n"
927	"%.*Rhxd\n",
928	cbFrame, pGso->u8Type, pGso->cbHdrsTotal, pGso->cbHdrsSeg, pGso->offHdr1, pGso->offHdr2, pGso->cbMaxSeg,
929	cbFrame - sizeof(*pGso), pGso + 1));
930	}
931	#endif
932	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
933	{
934	uint32_t cbSegFrame;
935	void pvSegFrame = PDMNetGsoCarveSegmentQD(pGso, (uint8_t )(pGso + 1), cbFrame,
936	abHdrScratch, iSeg, cSegs, &cbSegFrame);
937	rc = drvR3IntNetRecvWaitForSpace(pThis);
938	if (RT_FAILURE(rc))
939	{
940	Log(("drvR3IntNetRecvRun: drvR3IntNetRecvWaitForSpace -> %Rrc; iSeg=%u cSegs=%u\n", rc, iSeg, cSegs));
941	break; /* we drop the rest. */
942	}
943	rc = pThis->pIAboveNet->pfnReceive(pThis->pIAboveNet, pvSegFrame, cbSegFrame);
944	AssertRC(rc);
945	}
946	}
947	}
948	else
949	{
950	AssertMsgFailed(("cbFrame=%#x type=%d cbHdrsTotal=%#x cbHdrsSeg=%#x Hdr1=%#x Hdr2=%#x MMS=%#x\n",
951	cbFrame, pGso->u8Type, pGso->cbHdrsTotal, pGso->cbHdrsSeg, pGso->offHdr1, pGso->offHdr2, pGso->cbMaxSeg));
952	STAM_REL_COUNTER_INC(&pBuf->cStatBadFrames);
953	}
954
955	IntNetRingSkipFrame(pRingBuf);
956	}
957	}
958	else
959	{
960	/*
961	* Wait for sufficient space to become available and then retry.
962	*/
963	rc = drvR3IntNetRecvWaitForSpace(pThis);
964	if (RT_FAILURE(rc))
965	{
966	if (rc == VERR_INTERRUPTED)
967	{
968	/*
969	* NIC is going down, likely because the VM is being reset. Skip the frame.
970	*/
971	AssertMsg(IntNetIsValidFrameType(pHdr->u8Type), ("Unknown frame type %RX16! offRead=%#x\n", pHdr->u8Type, pRingBuf->offReadX));
972	IntNetRingSkipFrame(pRingBuf);
973	}
974	else
975	{
976	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
977	LogFlow(("drvR3IntNetRecvRun: returns %Rrc (wait-for-space)\n", rc));
978	return rc;
979	}
980	}
981	}
982	}
983	else
984	{
985	/*
986	* Link down or unknown frame - skip to the next frame.
987	*/
988	AssertMsg(IntNetIsValidFrameType(pHdr->u8Type), ("Unknown frame type %RX16! offRead=%#x\n", pHdr->u8Type, pRingBuf->offReadX));
989	IntNetRingSkipFrame(pRingBuf);
990	STAM_REL_COUNTER_INC(&pBuf->cStatBadFrames);
991	}
992	} /* while more received data */
993
994	/*
995	* Wait for data, checking the state before we block.
996	*/
997	if (pThis->enmRecvState != RECVSTATE_RUNNING)
998	{
999	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
1000	LogFlow(("drvR3IntNetRecvRun: returns VINF_SUCCESS (state changed - #1)\n"));
1001	return VERR_STATE_CHANGED;
1002	}
1003	INTNETIFWAITREQ WaitReq;
1004	WaitReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
1005	WaitReq.Hdr.cbReq = sizeof(WaitReq);
1006	WaitReq.pSession = NIL_RTR0PTR;
1007	WaitReq.hIf = pThis->hIf;
1008	WaitReq.cMillies = 30000; /* 30s - don't wait forever, timeout now and then. */
1009	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
1010
1011	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_INTNET_SERVICE_IN_R3)
1012	if (pThis->fIntNetR3Svc)
1013	{
1014	/* Send an asynchronous message. */
1015	int rc = drvR3IntNetCallSvcAsync(pThis, VMMR0_DO_INTNET_IF_WAIT, &WaitReq, sizeof(WaitReq));
1016	if (RT_SUCCESS(rc))
1017	{
1018	/* Wait on the receive semaphore. */
1019	rc = RTSemEventWait(pThis->hRecvEvt, 30 * RT_MS_1SEC);
1020	if ( RT_FAILURE(rc)
1021	&& rc != VERR_TIMEOUT
1022	&& rc != VERR_INTERRUPTED)
1023	{
1024	LogFlow(("drvR3IntNetRecvRun: returns %Rrc\n", rc));
1025	return rc;
1026	}
1027	}
1028	}
1029	else
1030	#endif
1031	{
1032	int rc = PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_WAIT, &WaitReq, sizeof(WaitReq));
1033	if ( RT_FAILURE(rc)
1034	&& rc != VERR_TIMEOUT
1035	&& rc != VERR_INTERRUPTED)
1036	{
1037	LogFlow(("drvR3IntNetRecvRun: returns %Rrc\n", rc));
1038	return rc;
1039	}
1040	}
1041	STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
1042	}
1043	}
1044
1045
1046	/**
1047	* Asynchronous I/O thread for handling receive.
1048	*
1049	* @returns VINF_SUCCESS (ignored).
1050	* @param hThreadSelf Thread handle.
1051	* @param pvUser Pointer to a DRVINTNET structure.
1052	*/
1053	static DECLCALLBACK(int) drvR3IntNetRecvThread(RTTHREAD hThreadSelf, void *pvUser)
1054	{
1055	RT_NOREF(hThreadSelf);
1056	PDRVINTNET pThis = (PDRVINTNET)pvUser;
1057	LogFlow(("drvR3IntNetRecvThread: pThis=%p\n", pThis));
1058	STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
1059
1060	/*
1061	* The main loop - acting on state.
1062	*/
1063	for (;;)
1064	{
1065	RECVSTATE enmRecvState = pThis->enmRecvState;
1066	switch (enmRecvState)
1067	{
1068	case RECVSTATE_SUSPENDED:
1069	{
1070	int rc = RTSemEventWait(pThis->hRecvEvt, 30000);
1071	if ( RT_FAILURE(rc)
1072	&& rc != VERR_TIMEOUT)
1073	{
1074	LogFlow(("drvR3IntNetRecvThread: returns %Rrc\n", rc));
1075	return rc;
1076	}
1077	break;
1078	}
1079
1080	case RECVSTATE_RUNNING:
1081	{
1082	int rc = drvR3IntNetRecvRun(pThis);
1083	if ( rc != VERR_STATE_CHANGED
1084	&& RT_FAILURE(rc))
1085	{
1086	LogFlow(("drvR3IntNetRecvThread: returns %Rrc\n", rc));
1087	return rc;
1088	}
1089	break;
1090	}
1091
1092	default:
1093	AssertMsgFailed(("Invalid state %d\n", enmRecvState));
1094	RT_FALL_THRU();
1095	case RECVSTATE_TERMINATE:
1096	LogFlow(("drvR3IntNetRecvThread: returns VINF_SUCCESS\n"));
1097	return VINF_SUCCESS;
1098	}
1099	}
1100	}
1101
1102
1103	#ifdef VBOX_WITH_DRVINTNET_IN_R0
1104
1105	/* -=-=-=-=- PDMIBASERC -=-=-=-=- */
1106
1107	/**
1108	* @interface_method_impl{PDMIBASERC,pfnQueryInterface}
1109	*/
1110	static DECLCALLBACK(RTRCPTR) drvR3IntNetIBaseRC_QueryInterface(PPDMIBASERC pInterface, const char *pszIID)
1111	{
1112	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, IBaseRC);
1113	#if 0
1114	PDMIBASERC_RETURN_INTERFACE(pThis->pDrvInsR3, pszIID, PDMINETWORKUP, &pThis->INetworkUpRC);
1115	#else
1116	RT_NOREF(pThis, pszIID);
1117	#endif
1118	return NIL_RTRCPTR;
1119	}
1120
1121
1122	/* -=-=-=-=- PDMIBASER0 -=-=-=-=- */
1123
1124	/**
1125	* @interface_method_impl{PDMIBASER0,pfnQueryInterface}
1126	*/
1127	static DECLCALLBACK(RTR0PTR) drvR3IntNetIBaseR0_QueryInterface(PPDMIBASER0 pInterface, const char *pszIID)
1128	{
1129	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, IBaseR0);
1130	PDMIBASER0_RETURN_INTERFACE(pThis->pDrvInsR3, pszIID, PDMINETWORKUP, &pThis->INetworkUpR0);
1131	return NIL_RTR0PTR;
1132	}
1133
1134	#endif /* VBOX_WITH_DRVINTNET_IN_R0 */
1135
1136	/* -=-=-=-=- PDMIBASE -=-=-=-=- */
1137
1138
1139	/**
1140	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
1141	*/
1142	static DECLCALLBACK(void ) drvR3IntNetIBase_QueryInterface(PPDMIBASE pInterface, const char pszIID)
1143	{
1144	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
1145	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
1146
1147	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
1148	#ifdef VBOX_WITH_DRVINTNET_IN_R0
1149	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASER0, &pThis->IBaseR0);
1150	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASERC, &pThis->IBaseRC);
1151	#endif
1152	PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKUP, &pThis->INetworkUpR3);
1153	return NULL;
1154	}
1155
1156
1157	/* -=-=-=-=- PDMDRVREG -=-=-=-=- */
1158
1159	/**
1160	* Power Off notification.
1161	*
1162	* @param pDrvIns The driver instance.
1163	*/
1164	static DECLCALLBACK(void) drvR3IntNetPowerOff(PPDMDRVINS pDrvIns)
1165	{
1166	LogFlow(("drvR3IntNetPowerOff\n"));
1167	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
1168	if (!pThis->fActivateEarlyDeactivateLate)
1169	{
1170	ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_SUSPENDED);
1171	drvR3IntNetSetActive(pThis, false /* fActive */);
1172	}
1173	}
1174
1175
1176	/**
1177	* drvR3IntNetResume helper.
1178	*/
1179	static int drvR3IntNetResumeSend(PDRVINTNET pThis, const void *pvBuf, size_t cb)
1180	{
1181	/*
1182	* Add the frame to the send buffer and push it onto the network.
1183	*/
1184	int rc = IntNetRingWriteFrame(&pThis->pBufR3->Send, pvBuf, (uint32_t)cb);
1185	if ( rc == VERR_BUFFER_OVERFLOW
1186	&& pThis->pBufR3->cbSend < cb)
1187	{
1188	INTNETIFSENDREQ SendReq;
1189	SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
1190	SendReq.Hdr.cbReq = sizeof(SendReq);
1191	SendReq.pSession = NIL_RTR0PTR;
1192	SendReq.hIf = pThis->hIf;
1193	drvR3IntNetCallSvc(pThis, VMMR0_DO_INTNET_IF_SEND, &SendReq, sizeof(SendReq));
1194
1195	rc = IntNetRingWriteFrame(&pThis->pBufR3->Send, pvBuf, (uint32_t)cb);
1196	}
1197
1198	if (RT_SUCCESS(rc))
1199	{
1200	INTNETIFSENDREQ SendReq;
1201	SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
1202	SendReq.Hdr.cbReq = sizeof(SendReq);
1203	SendReq.pSession = NIL_RTR0PTR;
1204	SendReq.hIf = pThis->hIf;
1205	rc = drvR3IntNetCallSvc(pThis, VMMR0_DO_INTNET_IF_SEND, &SendReq, sizeof(SendReq));
1206	}
1207
1208	AssertRC(rc);
1209	return rc;
1210	}
1211
1212
1213	/**
1214	* Resume notification.
1215	*
1216	* @param pDrvIns The driver instance.
1217	*/
1218	static DECLCALLBACK(void) drvR3IntNetResume(PPDMDRVINS pDrvIns)
1219	{
1220	LogFlow(("drvR3IntNetPowerResume\n"));
1221	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
1222	VMRESUMEREASON enmReason = PDMDrvHlpVMGetResumeReason(pDrvIns);
1223
1224	if (!pThis->fActivateEarlyDeactivateLate)
1225	{
1226	ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_RUNNING);
1227	RTSemEventSignal(pThis->hRecvEvt);
1228	drvR3IntNetUpdateMacAddress(pThis); /* (could be a state restore) */
1229	drvR3IntNetSetActive(pThis, true /* fActive */);
1230	}
1231
1232	switch (enmReason)
1233	{
1234	case VMRESUMEREASON_HOST_RESUME:
1235	{
1236	uint32_t u32TrunkType;
1237	int rc = pDrvIns->pHlpR3->pfnCFGMQueryU32(pDrvIns->pCfg, "TrunkType", &u32TrunkType);
1238	AssertRC(rc);
1239
1240	/*
1241	* Only do the disconnect for bridged networking. Host-only and
1242	* internal networks are not affected by a host resume.
1243	*/
1244	if ( RT_SUCCESS(rc)
1245	&& u32TrunkType == kIntNetTrunkType_NetFlt)
1246	{
1247	rc = pThis->pIAboveConfigR3->pfnSetLinkState(pThis->pIAboveConfigR3,
1248	PDMNETWORKLINKSTATE_DOWN_RESUME);
1249	AssertRC(rc);
1250	}
1251	break;
1252	}
1253	case VMRESUMEREASON_TELEPORTED:
1254	case VMRESUMEREASON_TELEPORT_FAILED:
1255	{
1256	if ( PDMDrvHlpVMTeleportedAndNotFullyResumedYet(pDrvIns)
1257	&& pThis->pIAboveConfigR3)
1258	{
1259	/*
1260	* We've just been teleported and need to drop a hint to the switch
1261	* since we're likely to have changed to a different port. We just
1262	* push out some ethernet frame that doesn't mean anything to anyone.
1263	* For this purpose ethertype 0x801e was chosen since it was registered
1264	* to Sun (dunno what it is/was used for though).
1265	*/
1266	union
1267	{
1268	RTNETETHERHDR Hdr;
1269	uint8_t ab[128];
1270	} Frame;
1271	RT_ZERO(Frame);
1272	Frame.Hdr.DstMac.au16[0] = 0xffff;
1273	Frame.Hdr.DstMac.au16[1] = 0xffff;
1274	Frame.Hdr.DstMac.au16[2] = 0xffff;
1275	Frame.Hdr.EtherType = RT_H2BE_U16_C(0x801e);
1276	int rc = pThis->pIAboveConfigR3->pfnGetMac(pThis->pIAboveConfigR3,
1277	&Frame.Hdr.SrcMac);
1278	if (RT_SUCCESS(rc))
1279	rc = drvR3IntNetResumeSend(pThis, &Frame, sizeof(Frame));
1280	if (RT_FAILURE(rc))
1281	LogRel(("IntNet#%u: Sending dummy frame failed: %Rrc\n",
1282	pDrvIns->iInstance, rc));
1283	}
1284	break;
1285	}
1286	default: /* ignore every other resume reason else */
1287	break;
1288	} /* end of switch(enmReason) */
1289	}
1290
1291
1292	/**
1293	* Suspend notification.
1294	*
1295	* @param pDrvIns The driver instance.
1296	*/
1297	static DECLCALLBACK(void) drvR3IntNetSuspend(PPDMDRVINS pDrvIns)
1298	{
1299	LogFlow(("drvR3IntNetPowerSuspend\n"));
1300	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
1301	if (!pThis->fActivateEarlyDeactivateLate)
1302	{
1303	ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_SUSPENDED);
1304	drvR3IntNetSetActive(pThis, false /* fActive */);
1305	}
1306	}
1307
1308
1309	/**
1310	* Power On notification.
1311	*
1312	* @param pDrvIns The driver instance.
1313	*/
1314	static DECLCALLBACK(void) drvR3IntNetPowerOn(PPDMDRVINS pDrvIns)
1315	{
1316	LogFlow(("drvR3IntNetPowerOn\n"));
1317	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
1318	if (!pThis->fActivateEarlyDeactivateLate)
1319	{
1320	ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_RUNNING);
1321	RTSemEventSignal(pThis->hRecvEvt);
1322	drvR3IntNetUpdateMacAddress(pThis);
1323	drvR3IntNetSetActive(pThis, true /* fActive */);
1324	}
1325	}
1326
1327
1328	/**
1329	* @interface_method_impl{PDMDRVREG,pfnRelocate}
1330	*/
1331	static DECLCALLBACK(void) drvR3IntNetRelocate(PPDMDRVINS pDrvIns, RTGCINTPTR offDelta)
1332	{
1333	/* nothing to do here yet */
1334	RT_NOREF(pDrvIns, offDelta);
1335	}
1336
1337
1338	/**
1339	* Destruct a driver instance.
1340	*
1341	* Most VM resources are freed by the VM. This callback is provided so that any non-VM
1342	* resources can be freed correctly.
1343	*
1344	* @param pDrvIns The driver instance data.
1345	*/
1346	static DECLCALLBACK(void) drvR3IntNetDestruct(PPDMDRVINS pDrvIns)
1347	{
1348	LogFlow(("drvR3IntNetDestruct\n"));
1349	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
1350	PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
1351
1352	/*
1353	* Indicate to the receive thread that it's time to quit.
1354	*/
1355	ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_TERMINATE);
1356	ASMAtomicXchgSize(&pThis->fLinkDown, true);
1357	RTSEMEVENT hRecvEvt = pThis->hRecvEvt;
1358	pThis->hRecvEvt = NIL_RTSEMEVENT;
1359
1360	if (hRecvEvt != NIL_RTSEMEVENT)
1361	RTSemEventSignal(hRecvEvt);
1362
1363	if (pThis->hIf != INTNET_HANDLE_INVALID)
1364	{
1365	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_INTNET_SERVICE_IN_R3)
1366	if (!pThis->fIntNetR3Svc) /* The R3 service case is handled b the hRecEvt event semaphore. */
1367	#endif
1368	{
1369	INTNETIFABORTWAITREQ AbortWaitReq;
1370	AbortWaitReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
1371	AbortWaitReq.Hdr.cbReq = sizeof(AbortWaitReq);
1372	AbortWaitReq.pSession = NIL_RTR0PTR;
1373	AbortWaitReq.hIf = pThis->hIf;
1374	AbortWaitReq.fNoMoreWaits = true;
1375	int rc = drvR3IntNetCallSvc(pThis, VMMR0_DO_INTNET_IF_ABORT_WAIT, &AbortWaitReq, sizeof(AbortWaitReq));
1376	AssertMsg(RT_SUCCESS(rc) \|\| rc == VERR_SEM_DESTROYED, ("%Rrc\n", rc)); RT_NOREF_PV(rc);
1377	}
1378	}
1379
1380	/*
1381	* Wait for the threads to terminate.
1382	*/
1383	if (pThis->pXmitThread)
1384	{
1385	int rc = PDMDrvHlpThreadDestroy(pDrvIns, pThis->pXmitThread, NULL);
1386	AssertRC(rc);
1387	pThis->pXmitThread = NULL;
1388	}
1389
1390	if (pThis->hRecvThread != NIL_RTTHREAD)
1391	{
1392	int rc = RTThreadWait(pThis->hRecvThread, 5000, NULL);
1393	AssertRC(rc);
1394	pThis->hRecvThread = NIL_RTTHREAD;
1395	}
1396
1397	/*
1398	* Deregister statistics in case we're being detached.
1399	*/
1400	if (pThis->pBufR3)
1401	{
1402	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Recv.cStatFrames);
1403	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Recv.cbStatWritten);
1404	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Recv.cOverflows);
1405	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Send.cStatFrames);
1406	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Send.cbStatWritten);
1407	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Send.cOverflows);
1408	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatYieldsOk);
1409	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatYieldsNok);
1410	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatLost);
1411	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatBadFrames);
1412	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->StatSend1);
1413	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->StatSend2);
1414	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->StatRecv1);
1415	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->StatRecv2);
1416	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->StatReserved);
1417	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReceivedGso);
1418	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatSentGso);
1419	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatSentR0);
1420	#ifdef VBOX_WITH_STATISTICS
1421	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReceive);
1422	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatTransmit);
1423	#endif
1424	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatXmitWakeupR0);
1425	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatXmitWakeupR3);
1426	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatXmitProcessRing);
1427	}
1428
1429	/*
1430	* Close the interface
1431	*/
1432	if (pThis->hIf != INTNET_HANDLE_INVALID)
1433	{
1434	INTNETIFCLOSEREQ CloseReq;
1435	CloseReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
1436	CloseReq.Hdr.cbReq = sizeof(CloseReq);
1437	CloseReq.pSession = NIL_RTR0PTR;
1438	CloseReq.hIf = pThis->hIf;
1439	pThis->hIf = INTNET_HANDLE_INVALID;
1440	int rc = drvR3IntNetCallSvc(pThis, VMMR0_DO_INTNET_IF_CLOSE, &CloseReq, sizeof(CloseReq));
1441	AssertRC(rc);
1442	}
1443
1444	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_INTNET_SERVICE_IN_R3)
1445	if (pThis->fIntNetR3Svc)
1446	{
1447	/* Unmap the shared buffer. */
1448	munmap(pThis->pBufR3, pThis->cbBuf);
1449	xpc_connection_cancel(pThis->hXpcCon);
1450	pThis->fIntNetR3Svc = false;
1451	pThis->hXpcCon = NULL;
1452	}
1453	#endif
1454
1455	/*
1456	* Destroy the semaphores, S/G cache and xmit lock.
1457	*/
1458	if (hRecvEvt != NIL_RTSEMEVENT)
1459	RTSemEventDestroy(hRecvEvt);
1460
1461	if (pThis->hXmitEvt != NIL_SUPSEMEVENT)
1462	{
1463	SUPSemEventClose(pThis->pSupDrvSession, pThis->hXmitEvt);
1464	pThis->hXmitEvt = NIL_SUPSEMEVENT;
1465	}
1466
1467	RTMemCacheDestroy(pThis->hSgCache);
1468	pThis->hSgCache = NIL_RTMEMCACHE;
1469
1470	if (PDMDrvHlpCritSectIsInitialized(pDrvIns, &pThis->XmitLock))
1471	PDMDrvHlpCritSectDelete(pDrvIns, &pThis->XmitLock);
1472	}
1473
1474
1475	/**
1476	* Queries a policy config value and translates it into open network flag.
1477	*
1478	* @returns VBox status code (error set on failure).
1479	* @param pDrvIns The driver instance.
1480	* @param pszName The value name.
1481	* @param paFlags The open network flag descriptors.
1482	* @param cFlags The number of descriptors.
1483	* @param fFlags The fixed flag.
1484	* @param pfFlags The flags variable to update.
1485	*/
1486	static int drvIntNetR3CfgGetPolicy(PPDMDRVINS pDrvIns, const char *pszName, PCDRVINTNETFLAG paFlags, size_t cFlags,
1487	uint32_t fFixedFlag, uint32_t *pfFlags)
1488	{
1489	PCPDMDRVHLPR3 pHlp = pDrvIns->pHlpR3;
1490
1491	char szValue[64];
1492	int rc = pHlp->pfnCFGMQueryString(pDrvIns->pCfg, pszName, szValue, sizeof(szValue));
1493	if (RT_FAILURE(rc))
1494	{
1495	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1496	return VINF_SUCCESS;
1497	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
1498	N_("Configuration error: Failed to query value of \"%s\""), pszName);
1499	}
1500
1501	/*
1502	* Check for +fixed first, so it can be stripped off.
1503	*/
1504	char *pszSep = strpbrk(szValue, "+,;");
1505	if (pszSep)
1506	{
1507	*pszSep++ = '\0';
1508	const char *pszFixed = RTStrStripL(pszSep);
1509	if (strcmp(pszFixed, "fixed"))
1510	{
1511	*pszSep = '+';
1512	return PDMDrvHlpVMSetError(pDrvIns, VERR_INVALID_PARAMETER, RT_SRC_POS,
1513	N_("Configuration error: The value of \"%s\" is unknown: \"%s\""), pszName, szValue);
1514	}
1515	*pfFlags \|= fFixedFlag;
1516	RTStrStripR(szValue);
1517	}
1518
1519	/*
1520	* Match against the flag values.
1521	*/
1522	size_t i = cFlags;
1523	while (i-- > 0)
1524	if (!strcmp(paFlags[i].pszChoice, szValue))
1525	{
1526	*pfFlags \|= paFlags[i].fFlag;
1527	return VINF_SUCCESS;
1528	}
1529
1530	if (!strcmp(szValue, "none"))
1531	return VINF_SUCCESS;
1532
1533	if (!strcmp(szValue, "fixed"))
1534	{
1535	*pfFlags \|= fFixedFlag;
1536	return VINF_SUCCESS;
1537	}
1538
1539	return PDMDrvHlpVMSetError(pDrvIns, VERR_INVALID_PARAMETER, RT_SRC_POS,
1540	N_("Configuration error: The value of \"%s\" is unknown: \"%s\""), pszName, szValue);
1541	}
1542
1543
1544	/**
1545	* Construct a TAP network transport driver instance.
1546	*
1547	* @copydoc FNPDMDRVCONSTRUCT
1548	*/
1549	static DECLCALLBACK(int) drvR3IntNetConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
1550	{
1551	RT_NOREF(fFlags);
1552	PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
1553	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
1554	PCPDMDRVHLPR3 pHlp = pDrvIns->pHlpR3;
1555	bool f;
1556
1557	/*
1558	* Init the static parts.
1559	*/
1560	pThis->pDrvInsR3 = pDrvIns;
1561	#ifdef VBOX_WITH_DRVINTNET_IN_R0
1562	pThis->pDrvInsR0 = PDMDRVINS_2_R0PTR(pDrvIns);
1563	#endif
1564	pThis->hIf = INTNET_HANDLE_INVALID;
1565	pThis->hRecvThread = NIL_RTTHREAD;
1566	pThis->hRecvEvt = NIL_RTSEMEVENT;
1567	pThis->pXmitThread = NULL;
1568	pThis->hXmitEvt = NIL_SUPSEMEVENT;
1569	pThis->pSupDrvSession = PDMDrvHlpGetSupDrvSession(pDrvIns);
1570	pThis->hSgCache = NIL_RTMEMCACHE;
1571	pThis->enmRecvState = RECVSTATE_SUSPENDED;
1572	pThis->fActivateEarlyDeactivateLate = false;
1573	/* IBase* */
1574	pDrvIns->IBase.pfnQueryInterface = drvR3IntNetIBase_QueryInterface;
1575	#ifdef VBOX_WITH_DRVINTNET_IN_R0
1576	pThis->IBaseR0.pfnQueryInterface = drvR3IntNetIBaseR0_QueryInterface;
1577	pThis->IBaseRC.pfnQueryInterface = drvR3IntNetIBaseRC_QueryInterface;
1578	#endif
1579	/* INetworkUp */
1580	pThis->INetworkUpR3.pfnBeginXmit = drvIntNetUp_BeginXmit;
1581	pThis->INetworkUpR3.pfnAllocBuf = drvIntNetUp_AllocBuf;
1582	pThis->INetworkUpR3.pfnFreeBuf = drvIntNetUp_FreeBuf;
1583	pThis->INetworkUpR3.pfnSendBuf = drvIntNetUp_SendBuf;
1584	pThis->INetworkUpR3.pfnEndXmit = drvIntNetUp_EndXmit;
1585	pThis->INetworkUpR3.pfnSetPromiscuousMode = drvIntNetUp_SetPromiscuousMode;
1586	pThis->INetworkUpR3.pfnNotifyLinkChanged = drvR3IntNetUp_NotifyLinkChanged;
1587
1588	/*
1589	* Validate the config.
1590	*/
1591	PDMDRV_VALIDATE_CONFIG_RETURN(pDrvIns,
1592	"Network"
1593	"\|Trunk"
1594	"\|TrunkType"
1595	"\|ReceiveBufferSize"
1596	"\|SendBufferSize"
1597	"\|SharedMacOnWire"
1598	"\|RestrictAccess"
1599	"\|RequireExactPolicyMatch"
1600	"\|RequireAsRestrictivePolicy"
1601	"\|AccessPolicy"
1602	"\|PromiscPolicyClients"
1603	"\|PromiscPolicyHost"
1604	"\|PromiscPolicyWire"
1605	"\|IfPolicyPromisc"
1606	"\|TrunkPolicyHost"
1607	"\|TrunkPolicyWire"
1608	"\|IsService"
1609	"\|IgnoreConnectFailure"
1610	"\|Workaround1",
1611	"");
1612
1613	/*
1614	* Check that no-one is attached to us.
1615	*/
1616	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
1617	("Configuration error: Not possible to attach anything to this driver!\n"),
1618	VERR_PDM_DRVINS_NO_ATTACH);
1619
1620	/*
1621	* Query the network port interface.
1622	*/
1623	pThis->pIAboveNet = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKDOWN);
1624	if (!pThis->pIAboveNet)
1625	{
1626	AssertMsgFailed(("Configuration error: the above device/driver didn't export the network port interface!\n"));
1627	return VERR_PDM_MISSING_INTERFACE_ABOVE;
1628	}
1629	pThis->pIAboveConfigR3 = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKCONFIG);
1630
1631	/*
1632	* Read the configuration.
1633	*/
1634	INTNETOPENREQ OpenReq;
1635	RT_ZERO(OpenReq);
1636	OpenReq.Hdr.cbReq = sizeof(OpenReq);
1637	OpenReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
1638	OpenReq.pSession = NIL_RTR0PTR;
1639
1640	/** @cfgm{Network, string}
1641	* The name of the internal network to connect to.
1642	*/
1643	int rc = pHlp->pfnCFGMQueryString(pCfg, "Network", OpenReq.szNetwork, sizeof(OpenReq.szNetwork));
1644	if (RT_FAILURE(rc))
1645	return PDMDRV_SET_ERROR(pDrvIns, rc,
1646	N_("Configuration error: Failed to get the \"Network\" value"));
1647	strcpy(pThis->szNetwork, OpenReq.szNetwork);
1648
1649	/** @cfgm{TrunkType, uint32_t, kIntNetTrunkType_None}
1650	* The trunk connection type see INTNETTRUNKTYPE.
1651	*/
1652	uint32_t u32TrunkType;
1653	rc = pHlp->pfnCFGMQueryU32(pCfg, "TrunkType", &u32TrunkType);
1654	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1655	u32TrunkType = kIntNetTrunkType_None;
1656	else if (RT_FAILURE(rc))
1657	return PDMDRV_SET_ERROR(pDrvIns, rc,
1658	N_("Configuration error: Failed to get the \"TrunkType\" value"));
1659	OpenReq.enmTrunkType = (INTNETTRUNKTYPE)u32TrunkType;
1660
1661	/** @cfgm{Trunk, string, ""}
1662	* The name of the trunk connection.
1663	*/
1664	rc = pHlp->pfnCFGMQueryString(pCfg, "Trunk", OpenReq.szTrunk, sizeof(OpenReq.szTrunk));
1665	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1666	OpenReq.szTrunk[0] = '\0';
1667	else if (RT_FAILURE(rc))
1668	return PDMDRV_SET_ERROR(pDrvIns, rc,
1669	N_("Configuration error: Failed to get the \"Trunk\" value"));
1670
1671	OpenReq.fFlags = 0;
1672
1673	/** @cfgm{SharedMacOnWire, boolean, false}
1674	* Whether to shared the MAC address of the host interface when using the wire. When
1675	* attaching to a wireless NIC this option is usually a requirement.
1676	*/
1677	bool fSharedMacOnWire;
1678	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "SharedMacOnWire", &fSharedMacOnWire, false);
1679	if (RT_FAILURE(rc))
1680	return PDMDRV_SET_ERROR(pDrvIns, rc,
1681	N_("Configuration error: Failed to get the \"SharedMacOnWire\" value"));
1682	if (fSharedMacOnWire)
1683	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE;
1684
1685	/** @cfgm{RestrictAccess, boolean, true}
1686	* Whether to restrict the access to the network or if it should be public.
1687	* Everyone on the computer can connect to a public network.
1688	* @deprecated Use AccessPolicy instead.
1689	*/
1690	rc = pHlp->pfnCFGMQueryBool(pCfg, "RestrictAccess", &f);
1691	if (RT_SUCCESS(rc))
1692	{
1693	if (f)
1694	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_ACCESS_RESTRICTED;
1695	else
1696	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_ACCESS_PUBLIC;
1697	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_ACCESS_FIXED;
1698	}
1699	else if (rc != VERR_CFGM_VALUE_NOT_FOUND)
1700	return PDMDRV_SET_ERROR(pDrvIns, rc,
1701	N_("Configuration error: Failed to get the \"RestrictAccess\" value"));
1702
1703	/** @cfgm{RequireExactPolicyMatch, boolean, false}
1704	* Whether to require that the current security and promiscuous policies of
1705	* the network is exactly as the ones specified in this open network
1706	* request. Use this with RequireAsRestrictivePolicy to prevent
1707	* restrictions from being lifted. If no further policy changes are
1708	* desired, apply the relevant fixed flags. */
1709	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "RequireExactPolicyMatch", &f, false);
1710	if (RT_FAILURE(rc))
1711	return PDMDRV_SET_ERROR(pDrvIns, rc,
1712	N_("Configuration error: Failed to get the \"RequireExactPolicyMatch\" value"));
1713	if (f)
1714	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_REQUIRE_EXACT;
1715
1716	/** @cfgm{RequireAsRestrictivePolicy, boolean, false}
1717	* Whether to require that the security and promiscuous policies of the
1718	* network is at least as restrictive as specified this request specifies
1719	* and prevent them being lifted later on.
1720	*/
1721	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "RequireAsRestrictivePolicy", &f, false);
1722	if (RT_FAILURE(rc))
1723	return PDMDRV_SET_ERROR(pDrvIns, rc,
1724	N_("Configuration error: Failed to get the \"RequireAsRestrictivePolicy\" value"));
1725	if (f)
1726	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_REQUIRE_AS_RESTRICTIVE_POLICIES;
1727
1728	/** @cfgm{AccessPolicy, string, "none"}
1729	* The access policy of the network:
1730	* public, public+fixed, restricted, restricted+fixed, none or fixed.
1731	*
1732	* A "public" network is accessible to everyone on the same host, while a
1733	* "restricted" one is only accessible to VMs & services started by the
1734	* same user. The "none" policy, which is the default, means no policy
1735	* change or choice is made and that the current (existing network) or
1736	* default (new) policy should be used. */
1737	static const DRVINTNETFLAG s_aAccessPolicyFlags[] =
1738	{
1739	{ "public", INTNET_OPEN_FLAGS_ACCESS_PUBLIC },
1740	{ "restricted", INTNET_OPEN_FLAGS_ACCESS_RESTRICTED }
1741	};
1742	rc = drvIntNetR3CfgGetPolicy(pDrvIns, "AccessPolicy", &s_aAccessPolicyFlags[0], RT_ELEMENTS(s_aAccessPolicyFlags),
1743	INTNET_OPEN_FLAGS_ACCESS_FIXED, &OpenReq.fFlags);
1744	AssertRCReturn(rc, rc);
1745
1746	/** @cfgm{PromiscPolicyClients, string, "none"}
1747	* The network wide promiscuous mode policy for client (non-trunk)
1748	* interfaces: allow, allow+fixed, deny, deny+fixed, none or fixed. */
1749	static const DRVINTNETFLAG s_aPromiscPolicyClient[] =
1750	{
1751	{ "allow", INTNET_OPEN_FLAGS_PROMISC_ALLOW_CLIENTS },
1752	{ "deny", INTNET_OPEN_FLAGS_PROMISC_DENY_CLIENTS }
1753	};
1754	rc = drvIntNetR3CfgGetPolicy(pDrvIns, "PromiscPolicyClients", &s_aPromiscPolicyClient[0], RT_ELEMENTS(s_aPromiscPolicyClient),
1755	INTNET_OPEN_FLAGS_PROMISC_FIXED, &OpenReq.fFlags);
1756	AssertRCReturn(rc, rc);
1757	/** @cfgm{PromiscPolicyHost, string, "none"}
1758	* The promiscuous mode policy for the trunk-host
1759	* connection: allow, allow+fixed, deny, deny+fixed, none or fixed. */
1760	static const DRVINTNETFLAG s_aPromiscPolicyHost[] =
1761	{
1762	{ "allow", INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_HOST },
1763	{ "deny", INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_HOST }
1764	};
1765	rc = drvIntNetR3CfgGetPolicy(pDrvIns, "PromiscPolicyHost", &s_aPromiscPolicyHost[0], RT_ELEMENTS(s_aPromiscPolicyHost),
1766	INTNET_OPEN_FLAGS_PROMISC_FIXED, &OpenReq.fFlags);
1767	AssertRCReturn(rc, rc);
1768	/** @cfgm{PromiscPolicyWire, string, "none"}
1769	* The promiscuous mode policy for the trunk-host
1770	* connection: allow, allow+fixed, deny, deny+fixed, none or fixed. */
1771	static const DRVINTNETFLAG s_aPromiscPolicyWire[] =
1772	{
1773	{ "allow", INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_WIRE },
1774	{ "deny", INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_WIRE }
1775	};
1776	rc = drvIntNetR3CfgGetPolicy(pDrvIns, "PromiscPolicyWire", &s_aPromiscPolicyWire[0], RT_ELEMENTS(s_aPromiscPolicyWire),
1777	INTNET_OPEN_FLAGS_PROMISC_FIXED, &OpenReq.fFlags);
1778	AssertRCReturn(rc, rc);
1779
1780
1781	/** @cfgm{IfPolicyPromisc, string, "none"}
1782	* The promiscuous mode policy for this
1783	* interface: deny, deny+fixed, allow-all, allow-all+fixed, allow-network,
1784	* allow-network+fixed, none or fixed. */
1785	static const DRVINTNETFLAG s_aIfPolicyPromisc[] =
1786	{
1787	{ "allow-all", INTNET_OPEN_FLAGS_IF_PROMISC_ALLOW \| INTNET_OPEN_FLAGS_IF_PROMISC_SEE_TRUNK },
1788	{ "allow-network", INTNET_OPEN_FLAGS_IF_PROMISC_ALLOW \| INTNET_OPEN_FLAGS_IF_PROMISC_NO_TRUNK },
1789	{ "deny", INTNET_OPEN_FLAGS_IF_PROMISC_DENY }
1790	};
1791	rc = drvIntNetR3CfgGetPolicy(pDrvIns, "IfPolicyPromisc", &s_aIfPolicyPromisc[0], RT_ELEMENTS(s_aIfPolicyPromisc),
1792	INTNET_OPEN_FLAGS_IF_FIXED, &OpenReq.fFlags);
1793	AssertRCReturn(rc, rc);
1794
1795
1796	/** @cfgm{TrunkPolicyHost, string, "none"}
1797	* The trunk-host policy: promisc, promisc+fixed, enabled, enabled+fixed,
1798	* disabled, disabled+fixed, none or fixed
1799	*
1800	* This can be used to prevent packages to be routed to the host. */
1801	static const DRVINTNETFLAG s_aTrunkPolicyHost[] =
1802	{
1803	{ "promisc", INTNET_OPEN_FLAGS_TRUNK_HOST_ENABLED \| INTNET_OPEN_FLAGS_TRUNK_HOST_PROMISC_MODE },
1804	{ "enabled", INTNET_OPEN_FLAGS_TRUNK_HOST_ENABLED },
1805	{ "disabled", INTNET_OPEN_FLAGS_TRUNK_HOST_DISABLED }
1806	};
1807	rc = drvIntNetR3CfgGetPolicy(pDrvIns, "TrunkPolicyHost", &s_aTrunkPolicyHost[0], RT_ELEMENTS(s_aTrunkPolicyHost),
1808	INTNET_OPEN_FLAGS_TRUNK_FIXED, &OpenReq.fFlags);
1809	AssertRCReturn(rc, rc);
1810	/** @cfgm{TrunkPolicyWire, string, "none"}
1811	* The trunk-host policy: promisc, promisc+fixed, enabled, enabled+fixed,
1812	* disabled, disabled+fixed, none or fixed.
1813	*
1814	* This can be used to prevent packages to be routed to the wire. */
1815	static const DRVINTNETFLAG s_aTrunkPolicyWire[] =
1816	{
1817	{ "promisc", INTNET_OPEN_FLAGS_TRUNK_WIRE_ENABLED \| INTNET_OPEN_FLAGS_TRUNK_WIRE_PROMISC_MODE },
1818	{ "enabled", INTNET_OPEN_FLAGS_TRUNK_WIRE_ENABLED },
1819	{ "disabled", INTNET_OPEN_FLAGS_TRUNK_WIRE_DISABLED }
1820	};
1821	rc = drvIntNetR3CfgGetPolicy(pDrvIns, "TrunkPolicyWire", &s_aTrunkPolicyWire[0], RT_ELEMENTS(s_aTrunkPolicyWire),
1822	INTNET_OPEN_FLAGS_TRUNK_FIXED, &OpenReq.fFlags);
1823	AssertRCReturn(rc, rc);
1824
1825
1826	/** @cfgm{ReceiveBufferSize, uint32_t, 318 KB}
1827	* The size of the receive buffer.
1828	*/
1829	rc = pHlp->pfnCFGMQueryU32(pCfg, "ReceiveBufferSize", &OpenReq.cbRecv);
1830	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1831	OpenReq.cbRecv = 318 * _1K ;
1832	else if (RT_FAILURE(rc))
1833	return PDMDRV_SET_ERROR(pDrvIns, rc,
1834	N_("Configuration error: Failed to get the \"ReceiveBufferSize\" value"));
1835
1836	/** @cfgm{SendBufferSize, uint32_t, 196 KB}
1837	* The size of the send (transmit) buffer.
1838	* This should be more than twice the size of the larges frame size because
1839	* the ring buffer is very simple and doesn't support splitting up frames
1840	* nor inserting padding. So, if this is too close to the frame size the
1841	* header will fragment the buffer such that the frame won't fit on either
1842	* side of it and the code will get very upset about it all.
1843	*/
1844	rc = pHlp->pfnCFGMQueryU32(pCfg, "SendBufferSize", &OpenReq.cbSend);
1845	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1846	OpenReq.cbSend = RT_ALIGN_Z(VBOX_MAX_GSO_SIZE * 3, _1K);
1847	else if (RT_FAILURE(rc))
1848	return PDMDRV_SET_ERROR(pDrvIns, rc,
1849	N_("Configuration error: Failed to get the \"SendBufferSize\" value"));
1850	if (OpenReq.cbSend < 128)
1851	return PDMDRV_SET_ERROR(pDrvIns, rc,
1852	N_("Configuration error: The \"SendBufferSize\" value is too small"));
1853	if (OpenReq.cbSend < VBOX_MAX_GSO_SIZE * 3)
1854	LogRel(("DrvIntNet: Warning! SendBufferSize=%u, Recommended minimum size %u butes.\n", OpenReq.cbSend, VBOX_MAX_GSO_SIZE * 4));
1855
1856	/** @cfgm{IsService, boolean, true}
1857	* This alterns the way the thread is suspended and resumed. When it's being used by
1858	* a service such as LWIP/iSCSI it shouldn't suspend immediately like for a NIC.
1859	*/
1860	rc = pHlp->pfnCFGMQueryBool(pCfg, "IsService", &pThis->fActivateEarlyDeactivateLate);
1861	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1862	pThis->fActivateEarlyDeactivateLate = false;
1863	else if (RT_FAILURE(rc))
1864	return PDMDRV_SET_ERROR(pDrvIns, rc,
1865	N_("Configuration error: Failed to get the \"IsService\" value"));
1866
1867
1868	/** @cfgm{IgnoreConnectFailure, boolean, false}
1869	* When set only raise a runtime error if we cannot connect to the internal
1870	* network. */
1871	bool fIgnoreConnectFailure;
1872	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "IgnoreConnectFailure", &fIgnoreConnectFailure, false);
1873	if (RT_FAILURE(rc))
1874	return PDMDRV_SET_ERROR(pDrvIns, rc,
1875	N_("Configuration error: Failed to get the \"IgnoreConnectFailure\" value"));
1876
1877	/** @cfgm{Workaround1, boolean, depends}
1878	* Enables host specific workarounds, the default is depends on the whether
1879	* we think the host requires it or not.
1880	*/
1881	bool fWorkaround1 = false;
1882	#ifdef RT_OS_DARWIN
1883	if (OpenReq.fFlags & INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE)
1884	{
1885	char szKrnlVer[256];
1886	RTSystemQueryOSInfo(RTSYSOSINFO_RELEASE, szKrnlVer, sizeof(szKrnlVer));
1887	if (strcmp(szKrnlVer, "10.7.0") >= 0)
1888	{
1889	LogRel(("IntNet#%u: Enables the workaround (ip_tos=0) for the little endian ip header checksum problem\n"));
1890	fWorkaround1 = true;
1891	}
1892	}
1893	#endif
1894	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "Workaround1", &fWorkaround1, fWorkaround1);
1895	if (RT_FAILURE(rc))
1896	return PDMDRV_SET_ERROR(pDrvIns, rc,
1897	N_("Configuration error: Failed to get the \"Workaround1\" value"));
1898	if (fWorkaround1)
1899	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_WORKAROUND_1;
1900
1901	LogRel(("IntNet#%u: szNetwork={%s} enmTrunkType=%d szTrunk={%s} fFlags=%#x cbRecv=%u cbSend=%u fIgnoreConnectFailure=%RTbool\n",
1902	pDrvIns->iInstance, OpenReq.szNetwork, OpenReq.enmTrunkType, OpenReq.szTrunk, OpenReq.fFlags,
1903	OpenReq.cbRecv, OpenReq.cbSend, fIgnoreConnectFailure));
1904
1905	#ifdef RT_OS_DARWIN
1906	/* Temporary hack: attach to a network with the name 'if=en0' and you're hitting the wire. */
1907	if ( !OpenReq.szTrunk[0]
1908	&& OpenReq.enmTrunkType == kIntNetTrunkType_None
1909	&& !strncmp(pThis->szNetwork, RT_STR_TUPLE("if=en"))
1910	&& RT_C_IS_DIGIT(pThis->szNetwork[sizeof("if=en") - 1])
1911	&& !pThis->szNetwork[sizeof("if=en")])
1912	{
1913	OpenReq.enmTrunkType = kIntNetTrunkType_NetFlt;
1914	strcpy(OpenReq.szTrunk, &pThis->szNetwork[sizeof("if=") - 1]);
1915	}
1916	/* Temporary hack: attach to a network with the name 'wif=en0' and you're on the air. */
1917	if ( !OpenReq.szTrunk[0]
1918	&& OpenReq.enmTrunkType == kIntNetTrunkType_None
1919	&& !strncmp(pThis->szNetwork, RT_STR_TUPLE("wif=en"))
1920	&& RT_C_IS_DIGIT(pThis->szNetwork[sizeof("wif=en") - 1])
1921	&& !pThis->szNetwork[sizeof("wif=en")])
1922	{
1923	OpenReq.enmTrunkType = kIntNetTrunkType_NetFlt;
1924	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE;
1925	strcpy(OpenReq.szTrunk, &pThis->szNetwork[sizeof("wif=") - 1]);
1926	}
1927	#endif /* DARWIN */
1928
1929	/*
1930	* Create the event semaphore, S/G cache and xmit critsect.
1931	*/
1932	rc = RTSemEventCreate(&pThis->hRecvEvt);
1933	if (RT_FAILURE(rc))
1934	return rc;
1935	rc = RTMemCacheCreate(&pThis->hSgCache, sizeof(PDMSCATTERGATHER), 0, UINT32_MAX, NULL, NULL, pThis, 0);
1936	if (RT_FAILURE(rc))
1937	return rc;
1938	rc = PDMDrvHlpCritSectInit(pDrvIns, &pThis->XmitLock, RT_SRC_POS, "IntNetXmit");
1939	if (RT_FAILURE(rc))
1940	return rc;
1941
1942	/*
1943	* Create the interface.
1944	*/
1945	if (SUPR3IsDriverless())
1946	{
1947	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_INTNET_SERVICE_IN_R3)
1948	xpc_connection_t hXpcCon = xpc_connection_create(INTNET_R3_SVC_NAME, NULL);
1949	xpc_connection_set_event_handler(hXpcCon, ^(xpc_object_t hObj) {
1950	if (xpc_get_type(hObj) == XPC_TYPE_ERROR)
1951	{
1952	/** @todo Error handling - reconnecting. */
1953	}
1954	else
1955	{
1956	/* Out of band messages should only come when there is something to receive. */
1957	RTSemEventSignal(pThis->hRecvEvt);
1958	}
1959	});
1960
1961	xpc_connection_resume(hXpcCon);
1962	pThis->hXpcCon = hXpcCon;
1963	pThis->fIntNetR3Svc = true;
1964	#else
1965	/** @todo This is probably not good enough for doing fuzz testing, but later... */
1966	return PDMDrvHlpVMSetError(pDrvIns, VERR_SUP_DRIVERLESS, RT_SRC_POS,
1967	N_("Cannot attach to '%s' in driverless mode"), pThis->szNetwork);
1968	#endif
1969	}
1970	OpenReq.hIf = INTNET_HANDLE_INVALID;
1971	rc = drvR3IntNetCallSvc(pThis, VMMR0_DO_INTNET_OPEN, &OpenReq, sizeof(OpenReq));
1972	if (RT_FAILURE(rc))
1973	{
1974	if (fIgnoreConnectFailure)
1975	{
1976	/*
1977	* During VM restore it is fatal if the network is not available because the
1978	* VM settings are locked and the user has no chance to fix network settings.
1979	* Therefore don't abort but just raise a runtime warning.
1980	*/
1981	PDMDrvHlpVMSetRuntimeError(pDrvIns, 0 /fFlags/, "HostIfNotConnecting",
1982	N_ ("Cannot connect to the network interface '%s'. The virtual "
1983	"network card will appear to work but the guest will not "
1984	"be able to connect. Please choose a different network in the "
1985	"network settings"), OpenReq.szTrunk);
1986
1987	return VERR_PDM_NO_ATTACHED_DRIVER;
1988	}
1989	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
1990	N_("Failed to open/create the internal network '%s'"), pThis->szNetwork);
1991	}
1992
1993	AssertRelease(OpenReq.hIf != INTNET_HANDLE_INVALID);
1994	pThis->hIf = OpenReq.hIf;
1995	Log(("IntNet%d: hIf=%RX32 '%s'\n", pDrvIns->iInstance, pThis->hIf, pThis->szNetwork));
1996
1997	/*
1998	* Get default buffer.
1999	*/
2000	rc = drvR3IntNetMapBufferPointers(pThis);
2001	if (RT_FAILURE(rc))
2002	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
2003	N_("Failed to get ring-3 buffer for the newly created interface to '%s'"), pThis->szNetwork);
2004
2005	/*
2006	* Register statistics.
2007	*/
2008	PDMDrvHlpSTAMRegCounterEx(pDrvIns, &pThis->pBufR3->Recv.cbStatWritten, "Bytes/Received", STAMUNIT_BYTES, "Number of received bytes.");
2009	PDMDrvHlpSTAMRegCounterEx(pDrvIns, &pThis->pBufR3->Send.cbStatWritten, "Bytes/Sent", STAMUNIT_BYTES, "Number of sent bytes.");
2010	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->Recv.cOverflows, "Overflows/Recv", "Number overflows.");
2011	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->Send.cOverflows, "Overflows/Sent", "Number overflows.");
2012	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->Recv.cStatFrames, "Packets/Received", "Number of received packets.");
2013	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->Send.cStatFrames, "Packets/Sent", "Number of sent packets.");
2014	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatReceivedGso, "Packets/Received-Gso", "The GSO portion of the received packets.");
2015	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatSentGso, "Packets/Sent-Gso", "The GSO portion of the sent packets.");
2016	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatSentR0, "Packets/Sent-R0", "The ring-0 portion of the sent packets.");
2017
2018	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->cStatLost, "Packets/Lost", "Number of lost packets.");
2019	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->cStatYieldsNok, "YieldOk", "Number of times yielding helped fix an overflow.");
2020	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->cStatYieldsOk, "YieldNok", "Number of times yielding didn't help fix an overflow.");
2021	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->cStatBadFrames, "BadFrames", "Number of bad frames seed by the consumers.");
2022	PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->pBufR3->StatSend1, "Send1", "Profiling IntNetR0IfSend.");
2023	PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->pBufR3->StatSend2, "Send2", "Profiling sending to the trunk.");
2024	PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->pBufR3->StatRecv1, "Recv1", "Reserved for future receive profiling.");
2025	PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->pBufR3->StatRecv2, "Recv2", "Reserved for future receive profiling.");
2026	PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->pBufR3->StatReserved, "Reserved", "Reserved for future use.");
2027	#ifdef VBOX_WITH_STATISTICS
2028	PDMDrvHlpSTAMRegProfileAdv(pDrvIns, &pThis->StatReceive, "Receive", "Profiling packet receive runs.");
2029	PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->StatTransmit, "Transmit", "Profiling packet transmit runs.");
2030	#endif
2031	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitWakeupR0, "XmitWakeup-R0", "Xmit thread wakeups from ring-0.");
2032	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitWakeupR3, "XmitWakeup-R3", "Xmit thread wakeups from ring-3.");
2033	PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitProcessRing, "XmitProcessRing", "Time xmit thread was told to process the ring.");
2034
2035	/*
2036	* Create the async I/O threads.
2037	* Note! Using a PDM thread here doesn't fit with the IsService=true operation.
2038	*/
2039	rc = RTThreadCreate(&pThis->hRecvThread, drvR3IntNetRecvThread, pThis, 0,
2040	RTTHREADTYPE_IO, RTTHREADFLAGS_WAITABLE, "INTNET-RECV");
2041	if (RT_FAILURE(rc))
2042	{
2043	AssertRC(rc);
2044	return rc;
2045	}
2046
2047	rc = SUPSemEventCreate(pThis->pSupDrvSession, &pThis->hXmitEvt);
2048	AssertRCReturn(rc, rc);
2049
2050	rc = PDMDrvHlpThreadCreate(pDrvIns, &pThis->pXmitThread, pThis,
2051	drvR3IntNetXmitThread, drvR3IntNetXmitWakeUp, 0, RTTHREADTYPE_IO, "INTNET-XMIT");
2052	AssertRCReturn(rc, rc);
2053
2054	#ifdef VBOX_WITH_DRVINTNET_IN_R0
2055	/*
2056	* Resolve the ring-0 context interface addresses.
2057	*/
2058	rc = pDrvIns->pHlpR3->pfnLdrGetR0InterfaceSymbols(pDrvIns, &pThis->INetworkUpR0, sizeof(pThis->INetworkUpR0),
2059	"drvIntNetUp_", PDMINETWORKUP_SYM_LIST);
2060	AssertLogRelRCReturn(rc, rc);
2061	#endif
2062
2063	/*
2064	* Activate data transmission as early as possible
2065	*/
2066	if (pThis->fActivateEarlyDeactivateLate)
2067	{
2068	ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_RUNNING);
2069	RTSemEventSignal(pThis->hRecvEvt);
2070
2071	drvR3IntNetUpdateMacAddress(pThis);
2072	drvR3IntNetSetActive(pThis, true /* fActive */);
2073	}
2074
2075	return rc;
2076	}
2077
2078
2079
2080	/**
2081	* Internal networking transport driver registration record.
2082	*/
2083	const PDMDRVREG g_DrvIntNet =
2084	{
2085	/* u32Version */
2086	PDM_DRVREG_VERSION,
2087	/* szName */
2088	"IntNet",
2089	/* szRCMod */
2090	"VBoxDDRC.rc",
2091	/* szR0Mod */
2092	"VBoxDDR0.r0",
2093	/* pszDescription */
2094	"Internal Networking Transport Driver",
2095	/* fFlags */
2096	#ifdef VBOX_WITH_DRVINTNET_IN_R0
2097	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT \| PDM_DRVREG_FLAGS_R0,
2098	#else
2099	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
2100	#endif
2101	/* fClass. */
2102	PDM_DRVREG_CLASS_NETWORK,
2103	/* cMaxInstances */
2104	~0U,
2105	/* cbInstance */
2106	sizeof(DRVINTNET),
2107	/* pfnConstruct */
2108	drvR3IntNetConstruct,
2109	/* pfnDestruct */
2110	drvR3IntNetDestruct,
2111	/* pfnRelocate */
2112	drvR3IntNetRelocate,
2113	/* pfnIOCtl */
2114	NULL,
2115	/* pfnPowerOn */
2116	drvR3IntNetPowerOn,
2117	/* pfnReset */
2118	NULL,
2119	/* pfnSuspend */
2120	drvR3IntNetSuspend,
2121	/* pfnResume */
2122	drvR3IntNetResume,
2123	/* pfnAttach */
2124	NULL,
2125	/* pfnDetach */
2126	NULL,
2127	/* pfnPowerOff */
2128	drvR3IntNetPowerOff,
2129	/* pfnSoftReset */
2130	NULL,
2131	/* u32EndVersion */
2132	PDM_DRVREG_VERSION
2133	};
2134
2135	#endif /* IN_RING3 */
2136

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source: vbox/trunk/src/VBox/Devices/Network/DrvIntNet.cpp@ 99785

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