DrvIntNet.cpp@ 26597

Last change on this file since 26597 was 26574, checked in by vboxsync, 15 years ago
Networking: Preparing to make the driver return a send buffer to the device emulation.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 46.2 KB

Line
1	/* $Id: DrvIntNet.cpp 26574 2010-02-16 12:44:10Z vboxsync $ */
2	/** @file
3	* DrvIntNet - Internal network transport driver.
4	*/
5
6	/*
7	* Copyright (C) 2006-2010 Sun Microsystems, Inc.
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	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22	/*******************************************************************************
23	* Header Files *
24	*******************************************************************************/
25	#define LOG_GROUP LOG_GROUP_DRV_INTNET
26	#include <VBox/pdmdrv.h>
27	#include <VBox/pdmnetifs.h>
28	#include <VBox/cfgm.h>
29	#include <VBox/intnet.h>
30	#include <VBox/intnetinline.h>
31	#include <VBox/vmm.h>
32	#include <VBox/err.h>
33
34	#include <VBox/log.h>
35	#include <iprt/asm.h>
36	#include <iprt/assert.h>
37	#include <iprt/ctype.h>
38	#include <iprt/memcache.h>
39	#include <iprt/net.h>
40	#include <iprt/semaphore.h>
41	#include <iprt/string.h>
42	#include <iprt/time.h>
43	#include <iprt/thread.h>
44	#include <iprt/uuid.h>
45
46	#include "../Builtins.h"
47
48
49	/*******************************************************************************
50	* Structures and Typedefs *
51	*******************************************************************************/
52	/**
53	* The state of the asynchronous thread.
54	*/
55	typedef enum ASYNCSTATE
56	{
57	/** The thread is suspended. */
58	ASYNCSTATE_SUSPENDED = 1,
59	/** The thread is running. */
60	ASYNCSTATE_RUNNING,
61	/** The thread must (/has) terminate. */
62	ASYNCSTATE_TERMINATE,
63	/** The usual 32-bit type blowup. */
64	ASYNCSTATE_32BIT_HACK = 0x7fffffff
65	} ASYNCSTATE;
66
67	/**
68	* Internal networking driver instance data.
69	*
70	* @implements PDMINETWORKUP
71	*/
72	typedef struct DRVINTNET
73	{
74	/** The network interface. */
75	PDMINETWORKUP INetworkUpR3;
76	/** The network interface. */
77	R3PTRTYPE(PPDMINETWORKDOWN) pIAboveNet;
78	/** The network config interface.
79	* Can (in theory at least) be NULL. */
80	R3PTRTYPE(PPDMINETWORKCONFIG) pIAboveConfigR3;
81	/** Pointer to the driver instance. */
82	PPDMDRVINSR3 pDrvInsR3;
83	/** Pointer to the communication buffer. */
84	R3PTRTYPE(PINTNETBUF) pBufR3;
85	/** Interface handle. */
86	INTNETIFHANDLE hIf;
87
88	/** The thread state. */
89	ASYNCSTATE volatile enmState;
90	/** Reader thread. */
91	RTTHREAD Thread;
92	/** Event semaphore the Thread waits on while the VM is suspended. */
93	RTSEMEVENT hEvtSuspended;
94	/** Scatter/gather descriptor cache. */
95	RTMEMCACHE hSgCache;
96	/** Set if the link is down.
97	* When the link is down all incoming packets will be dropped. */
98	bool volatile fLinkDown;
99	/** Set if data transmission should start immediately and deactivate
100	* as late as possible. */
101	bool fActivateEarlyDeactivateLate;
102	/** Padding. */
103	bool afReserved[2];
104	/** The network name. */
105	char szNetwork[INTNET_MAX_NETWORK_NAME];
106
107	/** Base interface for ring-0. */
108	PDMIBASER0 IBaseR0;
109	/** Base interface for ring-0. */
110	PDMIBASERC IBaseRC;
111
112	#ifdef LOG_ENABLED
113	/** The nano ts of the last transfer. */
114	uint64_t u64LastTransferTS;
115	/** The nano ts of the last receive. */
116	uint64_t u64LastReceiveTS;
117	#endif
118	#ifdef VBOX_WITH_STATISTICS
119	/** Profiling packet transmit runs. */
120	STAMPROFILE StatTransmit;
121	/** Profiling packet receive runs. */
122	STAMPROFILEADV StatReceive;
123	#endif /* VBOX_WITH_STATISTICS */
124	} DRVINTNET;
125	/** Pointer to instance data of the internal networking driver. */
126	typedef DRVINTNET *PDRVINTNET;
127
128
129	#ifdef IN_RING3
130
131	/* -=-=-=-=- PDMINETWORKUP -=-=-=-=- */
132
133
134	/**
135	* Updates the MAC address on the kernel side.
136	*
137	* @returns VBox status code.
138	* @param pThis The driver instance.
139	*/
140	static int drvR3IntNetUpdateMacAddress(PDRVINTNET pThis)
141	{
142	if (!pThis->pIAboveConfigR3)
143	return VINF_SUCCESS;
144
145	INTNETIFSETMACADDRESSREQ SetMacAddressReq;
146	SetMacAddressReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
147	SetMacAddressReq.Hdr.cbReq = sizeof(SetMacAddressReq);
148	SetMacAddressReq.pSession = NIL_RTR0PTR;
149	SetMacAddressReq.hIf = pThis->hIf;
150	int rc = pThis->pIAboveConfigR3->pfnGetMac(pThis->pIAboveConfigR3, &SetMacAddressReq.Mac);
151	if (RT_SUCCESS(rc))
152	rc = PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS,
153	&SetMacAddressReq, sizeof(SetMacAddressReq));
154
155	Log(("drvR3IntNetUpdateMacAddress: %.*Rhxs rc=%Rrc\n", sizeof(SetMacAddressReq.Mac), &SetMacAddressReq.Mac, rc));
156	return rc;
157	}
158
159
160	/**
161	* Sets the kernel interface active or inactive.
162	*
163	* Worker for poweron, poweroff, suspend and resume.
164	*
165	* @returns VBox status code.
166	* @param pThis The driver instance.
167	* @param fActive The new state.
168	*/
169	static int drvR3IntNetSetActive(PDRVINTNET pThis, bool fActive)
170	{
171	if (!pThis->pIAboveConfigR3)
172	return VINF_SUCCESS;
173
174	INTNETIFSETACTIVEREQ SetActiveReq;
175	SetActiveReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
176	SetActiveReq.Hdr.cbReq = sizeof(SetActiveReq);
177	SetActiveReq.pSession = NIL_RTR0PTR;
178	SetActiveReq.hIf = pThis->hIf;
179	SetActiveReq.fActive = fActive;
180	int rc = PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SET_ACTIVE,
181	&SetActiveReq, sizeof(SetActiveReq));
182
183	Log(("drvR3IntNetSetActive: fActive=%d rc=%Rrc\n", fActive, rc));
184	AssertRC(rc);
185	return rc;
186	}
187
188
189	/**
190	* @interface_method_impl{PDMINETWORKUP,pfnAllocBuf}
191	*/
192	static DECLCALLBACK(int) drvR3IntNetUp_AllocBuf(PPDMINETWORKUP pInterface, size_t cbMin, PPPDMSCATTERGATHER ppSgBuf)
193	{
194	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, INetworkUpR3);
195	int rc = VINF_SUCCESS;
196	Assert(cbMin < UINT32_MAX / 2);
197
198	/*
199	* Allocate a S/G buffer.
200	*/
201	PPDMSCATTERGATHER pSgBuf = (PPDMSCATTERGATHER)RTMemCacheAlloc(pThis->hSgCache);
202	if (pSgBuf)
203	{
204	PINTNETHDR pHdr;
205	rc = INTNETRingAllocateFrame(&pThis->pBufR3->Send, (uint32_t)cbMin,
206	&pHdr, &pSgBuf->aSegs[0].pvSeg);
207	#if 1 /** @todo implement VERR_TRY_AGAIN once this moves to EMT. */
208	if ( RT_FAILURE(rc)
209	&& pThis->pBufR3->cbSend >= cbMin * 2 + sizeof(INTNETHDR))
210	{
211	INTNETIFSENDREQ SendReq;
212	SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
213	SendReq.Hdr.cbReq = sizeof(SendReq);
214	SendReq.pSession = NIL_RTR0PTR;
215	SendReq.hIf = pThis->hIf;
216	PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SEND, &SendReq, sizeof(SendReq));
217
218	rc = INTNETRingAllocateFrame(&pThis->pBufR3->Send, (uint32_t)cbMin,
219	&pHdr, &pSgBuf->aSegs[0].pvSeg);
220	}
221	#endif
222	if (RT_SUCCESS(rc))
223	{
224	pSgBuf->fFlags = PDMSCATTERGATHER_FLAGS_MAGIC \| PDMSCATTERGATHER_FLAGS_OWNER_1;
225	pSgBuf->cbUsed = 0;
226	pSgBuf->cbAvailable = cbMin;
227	pSgBuf->pvUser = pHdr;
228	pSgBuf->cSegs = 1;
229	pSgBuf->aSegs[0].cbSeg = cbMin;
230
231	*ppSgBuf = pSgBuf;
232	return VINF_SUCCESS;
233	}
234
235	/*
236	* Arm the try again stuff.
237	*/
238	/** @todo if (pThis->pBufR3->cbSend >= cbMin * 2 + sizeof(INTNETHDR))
239	rc = VERR_TRY_AGAIN;
240	else */
241	rc = VERR_NO_MEMORY;
242
243	RTMemCacheFree(pThis->hSgCache, pSgBuf);
244	}
245	else
246	rc = VERR_NO_MEMORY;
247	/** @todo implement VERR_TRY_AGAIN */
248	return rc;
249	}
250
251	/**
252	* @interface_method_impl{PDMINETWORKUP,pfnSendBuf}
253	*/
254	static DECLCALLBACK(int) drvR3IntNetUp_SendBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf, bool fOnWorkerThread)
255	{
256	return VERR_NOT_IMPLEMENTED;
257	}
258
259	/**
260	* @interface_method_impl{PDMINETWORKUP,pfnSendDeprecated}
261	*/
262	static DECLCALLBACK(int) drvR3IntNetUp_SendDeprecated(PPDMINETWORKUP pInterface, const void *pvBuf, size_t cb)
263	{
264	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, INetworkUpR3);
265	STAM_PROFILE_START(&pThis->StatTransmit, a);
266
267	#ifdef LOG_ENABLED
268	uint64_t u64Now = RTTimeProgramNanoTS();
269	LogFlow(("drvR3IntNetSend: %-4d bytes at %llu ns deltas: r=%llu t=%llu\n",
270	cb, u64Now, u64Now - pThis->u64LastReceiveTS, u64Now - pThis->u64LastTransferTS));
271	pThis->u64LastTransferTS = u64Now;
272	Log2(("drvR3IntNetSend: pvBuf=%p cb=%#x\n"
273	"%.*Rhxd\n",
274	pvBuf, cb, cb, pvBuf));
275	#endif
276
277	/*
278	* Add the frame to the send buffer and push it onto the network.
279	*/
280	int rc = INTNETRingWriteFrame(&pThis->pBufR3->Send, pvBuf, (uint32_t)cb);
281	if ( rc == VERR_BUFFER_OVERFLOW
282	&& pThis->pBufR3->cbSend < cb)
283	{
284	INTNETIFSENDREQ SendReq;
285	SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
286	SendReq.Hdr.cbReq = sizeof(SendReq);
287	SendReq.pSession = NIL_RTR0PTR;
288	SendReq.hIf = pThis->hIf;
289	PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SEND, &SendReq, sizeof(SendReq));
290
291	rc = INTNETRingWriteFrame(&pThis->pBufR3->Send, pvBuf, (uint32_t)cb);
292	}
293
294	if (RT_SUCCESS(rc))
295	{
296	INTNETIFSENDREQ SendReq;
297	SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
298	SendReq.Hdr.cbReq = sizeof(SendReq);
299	SendReq.pSession = NIL_RTR0PTR;
300	SendReq.hIf = pThis->hIf;
301	rc = PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SEND, &SendReq, sizeof(SendReq));
302	}
303
304	STAM_PROFILE_STOP(&pThis->StatTransmit, a);
305	AssertRC(rc);
306	return rc;
307	}
308
309
310	/**
311	* @interface_method_impl{PDMINETWORKUP,pfnSetPromiscuousMode}
312	*/
313	static DECLCALLBACK(void) drvR3IntNetUp_SetPromiscuousMode(PPDMINETWORKUP pInterface, bool fPromiscuous)
314	{
315	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, INetworkUpR3);
316	INTNETIFSETPROMISCUOUSMODEREQ Req;
317	Req.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
318	Req.Hdr.cbReq = sizeof(Req);
319	Req.pSession = NIL_RTR0PTR;
320	Req.hIf = pThis->hIf;
321	Req.fPromiscuous = fPromiscuous;
322	int rc = PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE, &Req, sizeof(Req));
323	LogFlow(("drvR3IntNetUp_SetPromiscuousMode: fPromiscuous=%RTbool\n", fPromiscuous));
324	AssertRC(rc);
325	}
326
327
328	/**
329	* @interface_method_impl{PDMINETWORKUP,pfnNotifyLinkChanged}
330	*/
331	static DECLCALLBACK(void) drvR3IntNetUp_NotifyLinkChanged(PPDMINETWORKUP pInterface, PDMNETWORKLINKSTATE enmLinkState)
332	{
333	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, INetworkUpR3);
334	bool fLinkDown;
335	switch (enmLinkState)
336	{
337	case PDMNETWORKLINKSTATE_DOWN:
338	case PDMNETWORKLINKSTATE_DOWN_RESUME:
339	fLinkDown = true;
340	break;
341	default:
342	AssertMsgFailed(("enmLinkState=%d\n", enmLinkState));
343	case PDMNETWORKLINKSTATE_UP:
344	fLinkDown = false;
345	break;
346	}
347	LogFlow(("drvR3IntNetUp_NotifyLinkChanged: enmLinkState=%d %d->%d\n", enmLinkState, pThis->fLinkDown, fLinkDown));
348	ASMAtomicXchgSize(&pThis->fLinkDown, fLinkDown);
349	}
350
351
352	/**
353	* Wait for space to become available up the driver/device chain.
354	*
355	* @returns VINF_SUCCESS if space is available.
356	* @returns VERR_STATE_CHANGED if the state changed.
357	* @returns VBox status code on other errors.
358	* @param pThis Pointer to the instance data.
359	*/
360	static int drvR3IntNetAsyncIoWaitForSpace(PDRVINTNET pThis)
361	{
362	LogFlow(("drvR3IntNetAsyncIoWaitForSpace:\n"));
363	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
364	int rc = pThis->pIAboveNet->pfnWaitReceiveAvail(pThis->pIAboveNet, RT_INDEFINITE_WAIT);
365	STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
366	LogFlow(("drvR3IntNetAsyncIoWaitForSpace: returns %Rrc\n", rc));
367	return rc;
368	}
369
370
371	/**
372	* Executes async I/O (RUNNING mode).
373	*
374	* @returns VERR_STATE_CHANGED if the state changed.
375	* @returns Appropriate VBox status code (error) on fatal error.
376	* @param pThis The driver instance data.
377	*/
378	static int drvR3IntNetAsyncIoRun(PDRVINTNET pThis)
379	{
380	PPDMDRVINS pDrvIns = pThis->pDrvInsR3;
381	LogFlow(("drvR3IntNetAsyncIoRun: pThis=%p\n", pThis));
382
383	/*
384	* The running loop - processing received data and waiting for more to arrive.
385	*/
386	STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
387	PINTNETBUF pBuf = pThis->pBufR3;
388	PINTNETRINGBUF pRingBuf = &pBuf->Recv;
389	for (;;)
390	{
391	/*
392	* Process the receive buffer.
393	*/
394	PINTNETHDR pHdr;
395	while ((pHdr = INTNETRingGetNextFrameToRead(pRingBuf)) != NULL)
396	{
397	/*
398	* Check the state and then inspect the packet.
399	*/
400	if (pThis->enmState != ASYNCSTATE_RUNNING)
401	{
402	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
403	LogFlow(("drvR3IntNetAsyncIoRun: returns VERR_STATE_CHANGED (state changed - #0)\n"));
404	return VERR_STATE_CHANGED;
405	}
406
407	Log2(("pHdr=%p offRead=%#x: %.8Rhxs\n", pHdr, pRingBuf->offReadX, pHdr));
408	if ( pHdr->u16Type == INTNETHDR_TYPE_FRAME
409	&& !pThis->fLinkDown)
410	{
411	/*
412	* Check if there is room for the frame and pass it up.
413	*/
414	size_t cbFrame = pHdr->cbFrame;
415	int rc = pThis->pIAboveNet->pfnWaitReceiveAvail(pThis->pIAboveNet, 0);
416	if (rc == VINF_SUCCESS)
417	{
418	#ifdef LOG_ENABLED
419	uint64_t u64Now = RTTimeProgramNanoTS();
420	LogFlow(("drvR3IntNetAsyncIoRun: %-4d bytes at %llu ns deltas: r=%llu t=%llu\n",
421	cbFrame, u64Now, u64Now - pThis->u64LastReceiveTS, u64Now - pThis->u64LastTransferTS));
422	pThis->u64LastReceiveTS = u64Now;
423	Log2(("drvR3IntNetAsyncIoRun: cbFrame=%#x\n"
424	"%.*Rhxd\n",
425	cbFrame, cbFrame, INTNETHdrGetFramePtr(pHdr, pBuf)));
426	#endif
427	rc = pThis->pIAboveNet->pfnReceive(pThis->pIAboveNet, INTNETHdrGetFramePtr(pHdr, pBuf), cbFrame);
428	AssertRC(rc);
429
430	/* skip to the next frame. */
431	INTNETRingSkipFrame(pRingBuf);
432	}
433	else
434	{
435	/*
436	* Wait for sufficient space to become available and then retry.
437	*/
438	rc = drvR3IntNetAsyncIoWaitForSpace(pThis);
439	if (RT_FAILURE(rc))
440	{
441	if (rc == VERR_INTERRUPTED)
442	{
443	/*
444	* NIC is going down, likely because the VM is being reset. Skip the frame.
445	*/
446	AssertMsg(pHdr->u16Type == INTNETHDR_TYPE_FRAME, ("Unknown frame type %RX16! offRead=%#x\n",
447	pHdr->u16Type, pRingBuf->offReadX));
448	INTNETRingSkipFrame(pRingBuf);
449	}
450	else
451	{
452	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
453	LogFlow(("drvR3IntNetAsyncIoRun: returns %Rrc (wait-for-space)\n", rc));
454	return rc;
455	}
456	}
457	}
458	}
459	else
460	{
461	/*
462	* Link down or unknown frame - skip to the next frame.
463	*/
464	AssertMsg(pHdr->u16Type == INTNETHDR_TYPE_FRAME, ("Unknown frame type %RX16! offRead=%#x\n",
465	pHdr->u16Type, pRingBuf->offReadX));
466	INTNETRingSkipFrame(pRingBuf);
467	STAM_REL_COUNTER_INC(&pBuf->cStatBadFrames);
468	}
469	} /* while more received data */
470
471	/*
472	* Wait for data, checking the state before we block.
473	*/
474	if (pThis->enmState != ASYNCSTATE_RUNNING)
475	{
476	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
477	LogFlow(("drvR3IntNetAsyncIoRun: returns VINF_SUCCESS (state changed - #1)\n"));
478	return VERR_STATE_CHANGED;
479	}
480	INTNETIFWAITREQ WaitReq;
481	WaitReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
482	WaitReq.Hdr.cbReq = sizeof(WaitReq);
483	WaitReq.pSession = NIL_RTR0PTR;
484	WaitReq.hIf = pThis->hIf;
485	WaitReq.cMillies = 30000; /* 30s - don't wait forever, timeout now and then. */
486	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
487	int rc = PDMDrvHlpSUPCallVMMR0Ex(pDrvIns, VMMR0_DO_INTNET_IF_WAIT, &WaitReq, sizeof(WaitReq));
488	if ( RT_FAILURE(rc)
489	&& rc != VERR_TIMEOUT
490	&& rc != VERR_INTERRUPTED)
491	{
492	LogFlow(("drvR3IntNetAsyncIoRun: returns %Rrc\n", rc));
493	return rc;
494	}
495	STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
496	}
497	}
498
499
500	/**
501	* Asynchronous I/O thread for handling receive.
502	*
503	* @returns VINF_SUCCESS (ignored).
504	* @param ThreadSelf Thread handle.
505	* @param pvUser Pointer to a DRVINTNET structure.
506	*/
507	static DECLCALLBACK(int) drvR3IntNetAsyncIoThread(RTTHREAD ThreadSelf, void *pvUser)
508	{
509	PDRVINTNET pThis = (PDRVINTNET)pvUser;
510	LogFlow(("drvR3IntNetAsyncIoThread: pThis=%p\n", pThis));
511	STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
512
513	/*
514	* The main loop - acting on state.
515	*/
516	for (;;)
517	{
518	ASYNCSTATE enmState = pThis->enmState;
519	switch (enmState)
520	{
521	case ASYNCSTATE_SUSPENDED:
522	{
523	int rc = RTSemEventWait(pThis->hEvtSuspended, 30000);
524	if ( RT_FAILURE(rc)
525	&& rc != VERR_TIMEOUT)
526	{
527	LogFlow(("drvR3IntNetAsyncIoThread: returns %Rrc\n", rc));
528	return rc;
529	}
530	break;
531	}
532
533	case ASYNCSTATE_RUNNING:
534	{
535	int rc = drvR3IntNetAsyncIoRun(pThis);
536	if ( rc != VERR_STATE_CHANGED
537	&& RT_FAILURE(rc))
538	{
539	LogFlow(("drvR3IntNetAsyncIoThread: returns %Rrc\n", rc));
540	return rc;
541	}
542	break;
543	}
544
545	default:
546	AssertMsgFailed(("Invalid state %d\n", enmState));
547	case ASYNCSTATE_TERMINATE:
548	LogFlow(("drvR3IntNetAsyncIoThread: returns VINF_SUCCESS\n"));
549	return VINF_SUCCESS;
550	}
551	}
552	}
553
554	/* -=-=-=-=- PDMIBASERC -=-=-=-=- */
555
556	/**
557	* @interface_method_impl{PDMIBASERC,pfnQueryInterface}
558	*/
559	static DECLCALLBACK(RTRCPTR) drvR3IntNetIBaseRC_QueryInterface(PPDMIBASERC pInterface, const char *pszIID)
560	{
561	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, IBaseRC);
562
563	PDMIBASERC_RETURN_INTERFACE(pThis->pDrvInsR3, pszIID, PDMIBASERC, &pThis->IBaseRC);
564	return NIL_RTRCPTR;
565	}
566
567	/* -=-=-=-=- PDMIBASER0 -=-=-=-=- */
568
569	/**
570	* @interface_method_impl{PDMIBASER0,pfnQueryInterface}
571	*/
572	static DECLCALLBACK(RTR0PTR) drvR3IntNetIBaseR0_QueryInterface(PPDMIBASER0 pInterface, const char *pszIID)
573	{
574	PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, IBaseR0);
575
576	PDMIBASER0_RETURN_INTERFACE(pThis->pDrvInsR3, pszIID, PDMIBASER0, &pThis->IBaseR0);
577	return NIL_RTR0PTR;
578	}
579
580	/* -=-=-=-=- PDMIBASE -=-=-=-=- */
581
582	/**
583	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
584	*/
585	static DECLCALLBACK(void ) drvR3IntNetIBase_QueryInterface(PPDMIBASE pInterface, const char pszIID)
586	{
587	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
588	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
589
590	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
591	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASER0, &pThis->IBaseR0);
592	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASERC, &pThis->IBaseRC);
593	PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKUP, &pThis->INetworkUpR3);
594	return NULL;
595	}
596
597	/* -=-=-=-=- PDMDRVREG -=-=-=-=- */
598
599	/**
600	* Power Off notification.
601	*
602	* @param pDrvIns The driver instance.
603	*/
604	static DECLCALLBACK(void) drvR3IntNetPowerOff(PPDMDRVINS pDrvIns)
605	{
606	LogFlow(("drvR3IntNetPowerOff\n"));
607	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
608	if (!pThis->fActivateEarlyDeactivateLate)
609	{
610	ASMAtomicXchgSize(&pThis->enmState, ASYNCSTATE_SUSPENDED);
611	drvR3IntNetSetActive(pThis, false /* fActive */);
612	}
613	}
614
615
616	/**
617	* Resume notification.
618	*
619	* @param pDrvIns The driver instance.
620	*/
621	static DECLCALLBACK(void) drvR3IntNetResume(PPDMDRVINS pDrvIns)
622	{
623	LogFlow(("drvR3IntNetPowerResume\n"));
624	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
625	if (!pThis->fActivateEarlyDeactivateLate)
626	{
627	ASMAtomicXchgSize(&pThis->enmState, ASYNCSTATE_RUNNING);
628	RTSemEventSignal(pThis->hEvtSuspended);
629	drvR3IntNetUpdateMacAddress(pThis); /* (could be a state restore) */
630	drvR3IntNetSetActive(pThis, true /* fActive */);
631	}
632	if ( PDMDrvHlpVMTeleportedAndNotFullyResumedYet(pDrvIns)
633	&& pThis->pIAboveConfigR3)
634	{
635	/*
636	* We've just been teleported and need to drop a hint to the switch
637	* since we're likely to have changed to a different port. We just
638	* push out some ethernet frame that doesn't mean anything to anyone.
639	* For this purpose ethertype 0x801e was chosen since it was registered
640	* to Sun (dunno what it is/was used for though).
641	*/
642	union
643	{
644	RTNETETHERHDR Hdr;
645	uint8_t ab[128];
646	} Frame;
647	RT_ZERO(Frame);
648	Frame.Hdr.DstMac.au16[0] = 0xffff;
649	Frame.Hdr.DstMac.au16[1] = 0xffff;
650	Frame.Hdr.DstMac.au16[2] = 0xffff;
651	Frame.Hdr.EtherType = RT_H2BE_U16(0x801e);
652	int rc = pThis->pIAboveConfigR3->pfnGetMac(pThis->pIAboveConfigR3, &Frame.Hdr.SrcMac);
653	if (RT_SUCCESS(rc))
654	rc = drvR3IntNetUp_SendDeprecated(&pThis->INetworkUpR3, &Frame, sizeof(Frame));
655	if (RT_FAILURE(rc))
656	LogRel(("IntNet#%u: Sending dummy frame failed: %Rrc\n", pDrvIns->iInstance, rc));
657	}
658	}
659
660
661	/**
662	* Suspend notification.
663	*
664	* @param pDrvIns The driver instance.
665	*/
666	static DECLCALLBACK(void) drvR3IntNetSuspend(PPDMDRVINS pDrvIns)
667	{
668	LogFlow(("drvR3IntNetPowerSuspend\n"));
669	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
670	if (!pThis->fActivateEarlyDeactivateLate)
671	{
672	ASMAtomicXchgSize(&pThis->enmState, ASYNCSTATE_SUSPENDED);
673	drvR3IntNetSetActive(pThis, false /* fActive */);
674	}
675	}
676
677
678	/**
679	* Power On notification.
680	*
681	* @param pDrvIns The driver instance.
682	*/
683	static DECLCALLBACK(void) drvR3IntNetPowerOn(PPDMDRVINS pDrvIns)
684	{
685	LogFlow(("drvR3IntNetPowerOn\n"));
686	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
687	if (!pThis->fActivateEarlyDeactivateLate)
688	{
689	ASMAtomicXchgSize(&pThis->enmState, ASYNCSTATE_RUNNING);
690	RTSemEventSignal(pThis->hEvtSuspended);
691	drvR3IntNetUpdateMacAddress(pThis);
692	drvR3IntNetSetActive(pThis, true /* fActive */);
693	}
694	}
695
696
697	/**
698	* Destruct a driver instance.
699	*
700	* Most VM resources are freed by the VM. This callback is provided so that any non-VM
701	* resources can be freed correctly.
702	*
703	* @param pDrvIns The driver instance data.
704	*/
705	static DECLCALLBACK(void) drvR3IntNetDestruct(PPDMDRVINS pDrvIns)
706	{
707	LogFlow(("drvR3IntNetDestruct\n"));
708	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
709	PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
710
711	/*
712	* Indicate to the thread that it's time to quit.
713	*/
714	ASMAtomicXchgSize(&pThis->enmState, ASYNCSTATE_TERMINATE);
715	ASMAtomicXchgSize(&pThis->fLinkDown, true);
716	RTSEMEVENT hEvtSuspended = pThis->hEvtSuspended;
717	pThis->hEvtSuspended = NIL_RTSEMEVENT;
718
719	/*
720	* Close the interface
721	*/
722	if (pThis->hIf != INTNET_HANDLE_INVALID)
723	{
724	INTNETIFCLOSEREQ CloseReq;
725	CloseReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
726	CloseReq.Hdr.cbReq = sizeof(CloseReq);
727	CloseReq.pSession = NIL_RTR0PTR;
728	CloseReq.hIf = pThis->hIf;
729	pThis->hIf = INTNET_HANDLE_INVALID;
730	int rc = PDMDrvHlpSUPCallVMMR0Ex(pDrvIns, VMMR0_DO_INTNET_IF_CLOSE, &CloseReq, sizeof(CloseReq));
731	AssertRC(rc);
732	}
733
734	/*
735	* Wait for the thread to terminate.
736	*/
737	if (pThis->Thread != NIL_RTTHREAD)
738	{
739	if (hEvtSuspended != NIL_RTSEMEVENT)
740	RTSemEventSignal(hEvtSuspended);
741	int rc = RTThreadWait(pThis->Thread, 5000, NULL);
742	AssertRC(rc);
743	pThis->Thread = NIL_RTTHREAD;
744	}
745
746	/*
747	* Destroy the semaphore and S/G cache.
748	*/
749	if (hEvtSuspended != NIL_RTSEMEVENT)
750	RTSemEventDestroy(hEvtSuspended);
751
752	RTMemCacheDestroy(pThis->hSgCache);
753	pThis->hSgCache = NIL_RTMEMCACHE;
754
755	/*
756	* Deregister statistics in case we're being detached.
757	*/
758	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Recv.cStatFrames);
759	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Recv.cbStatWritten);
760	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Recv.cOverflows);
761	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Send.cStatFrames);
762	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Send.cbStatWritten);
763	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Send.cOverflows);
764	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatYieldsOk);
765	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatYieldsNok);
766	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatLost);
767	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatBadFrames);
768	#ifdef VBOX_WITH_STATISTICS
769	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReceive);
770	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatTransmit);
771	#endif
772	}
773
774
775	/**
776	* Construct a TAP network transport driver instance.
777	*
778	* @copydoc FNPDMDRVCONSTRUCT
779	*/
780	static DECLCALLBACK(int) drvR3IntNetConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
781	{
782	PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET);
783	bool f;
784	PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
785
786	/*
787	* Init the static parts.
788	*/
789	pThis->pDrvInsR3 = pDrvIns;
790	pThis->hIf = INTNET_HANDLE_INVALID;
791	pThis->Thread = NIL_RTTHREAD;
792	pThis->hEvtSuspended = NIL_RTSEMEVENT;
793	pThis->hSgCache = NIL_RTMEMCACHE;
794	pThis->enmState = ASYNCSTATE_SUSPENDED;
795	pThis->fActivateEarlyDeactivateLate = false;
796	/* IBase* */
797	pDrvIns->IBase.pfnQueryInterface = drvR3IntNetIBase_QueryInterface;
798	pThis->IBaseR0.pfnQueryInterface = drvR3IntNetIBaseR0_QueryInterface;
799	pThis->IBaseRC.pfnQueryInterface = drvR3IntNetIBaseRC_QueryInterface;
800	/* INetworkUp */
801	pThis->INetworkUpR3.pfnAllocBuf = drvR3IntNetUp_AllocBuf;
802	pThis->INetworkUpR3.pfnSendBuf = drvR3IntNetUp_SendBuf;
803	pThis->INetworkUpR3.pfnSendDeprecated = drvR3IntNetUp_SendDeprecated;
804	pThis->INetworkUpR3.pfnSetPromiscuousMode = drvR3IntNetUp_SetPromiscuousMode;
805	pThis->INetworkUpR3.pfnNotifyLinkChanged = drvR3IntNetUp_NotifyLinkChanged;
806
807	/*
808	* Validate the config.
809	*/
810	if (!CFGMR3AreValuesValid(pCfg,
811	"Network\0"
812	"Trunk\0"
813	"TrunkType\0"
814	"ReceiveBufferSize\0"
815	"SendBufferSize\0"
816	"RestrictAccess\0"
817	"SharedMacOnWire\0"
818	"IgnoreAllPromisc\0"
819	"QuietlyIgnoreAllPromisc\0"
820	"IgnoreClientPromisc\0"
821	"QuietlyIgnoreClientPromisc\0"
822	"IgnoreTrunkWirePromisc\0"
823	"QuietlyIgnoreTrunkWirePromisc\0"
824	"IgnoreTrunkHostPromisc\0"
825	"QuietlyIgnoreTrunkHostPromisc\0"
826	"IsService\0"))
827	return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;
828
829	/*
830	* Check that no-one is attached to us.
831	*/
832	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
833	("Configuration error: Not possible to attach anything to this driver!\n"),
834	VERR_PDM_DRVINS_NO_ATTACH);
835
836	/*
837	* Query the network port interface.
838	*/
839	pThis->pIAboveNet = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKDOWN);
840	if (!pThis->pIAboveNet)
841	{
842	AssertMsgFailed(("Configuration error: the above device/driver didn't export the network port interface!\n"));
843	return VERR_PDM_MISSING_INTERFACE_ABOVE;
844	}
845	pThis->pIAboveConfigR3 = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKCONFIG);
846
847	/*
848	* Read the configuration.
849	*/
850	INTNETOPENREQ OpenReq;
851	memset(&OpenReq, 0, sizeof(OpenReq));
852	OpenReq.Hdr.cbReq = sizeof(OpenReq);
853	OpenReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
854	OpenReq.pSession = NIL_RTR0PTR;
855
856	/** @cfgm{Network, string}
857	* The name of the internal network to connect to.
858	*/
859	int rc = CFGMR3QueryString(pCfg, "Network", OpenReq.szNetwork, sizeof(OpenReq.szNetwork));
860	if (RT_FAILURE(rc))
861	return PDMDRV_SET_ERROR(pDrvIns, rc,
862	N_("Configuration error: Failed to get the \"Network\" value"));
863	strcpy(pThis->szNetwork, OpenReq.szNetwork);
864
865	/** @cfgm{TrunkType, uint32_t, kIntNetTrunkType_None}
866	* The trunk connection type see INTNETTRUNKTYPE.
867	*/
868	uint32_t u32TrunkType;
869	rc = CFGMR3QueryU32(pCfg, "TrunkType", &u32TrunkType);
870	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
871	u32TrunkType = kIntNetTrunkType_None;
872	else if (RT_FAILURE(rc))
873	return PDMDRV_SET_ERROR(pDrvIns, rc,
874	N_("Configuration error: Failed to get the \"TrunkType\" value"));
875	OpenReq.enmTrunkType = (INTNETTRUNKTYPE)u32TrunkType;
876
877	/** @cfgm{Trunk, string, ""}
878	* The name of the trunk connection.
879	*/
880	rc = CFGMR3QueryString(pCfg, "Trunk", OpenReq.szTrunk, sizeof(OpenReq.szTrunk));
881	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
882	OpenReq.szTrunk[0] = '\0';
883	else if (RT_FAILURE(rc))
884	return PDMDRV_SET_ERROR(pDrvIns, rc,
885	N_("Configuration error: Failed to get the \"Trunk\" value"));
886
887	/** @cfgm{RestrictAccess, boolean, true}
888	* Whether to restrict the access to the network or if it should be public. Everyone on
889	* the computer can connect to a public network. Don't change this.
890	*/
891	bool fRestrictAccess;
892	rc = CFGMR3QueryBool(pCfg, "RestrictAccess", &fRestrictAccess);
893	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
894	fRestrictAccess = true;
895	else if (RT_FAILURE(rc))
896	return PDMDRV_SET_ERROR(pDrvIns, rc,
897	N_("Configuration error: Failed to get the \"RestrictAccess\" value"));
898	OpenReq.fFlags = fRestrictAccess ? 0 : INTNET_OPEN_FLAGS_PUBLIC;
899
900	/** @cfgm{IgnoreAllPromisc, boolean, false}
901	* When set all request for operating any interface or trunk in promiscuous
902	* mode will be ignored. */
903	rc = CFGMR3QueryBoolDef(pCfg, "IgnoreAllPromisc", &f, false);
904	if (RT_FAILURE(rc))
905	return PDMDRV_SET_ERROR(pDrvIns, rc,
906	N_("Configuration error: Failed to get the \"IgnoreAllPromisc\" value"));
907	if (f)
908	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_IGNORE_PROMISC;
909
910	/** @cfgm{QuietlyIgnoreAllPromisc, boolean, false}
911	* When set all request for operating any interface or trunk in promiscuous
912	* mode will be ignored. This differs from IgnoreAllPromisc in that clients
913	* won't get VERR_INTNET_INCOMPATIBLE_FLAGS. */
914	rc = CFGMR3QueryBoolDef(pCfg, "QuietlyIgnoreAllPromisc", &f, false);
915	if (RT_FAILURE(rc))
916	return PDMDRV_SET_ERROR(pDrvIns, rc,
917	N_("Configuration error: Failed to get the \"QuietlyIgnoreAllPromisc\" value"));
918	if (f)
919	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_QUIETLY_IGNORE_PROMISC;
920
921	/** @cfgm{IgnoreClientPromisc, boolean, false}
922	* When set all request for operating any non-trunk interface in promiscuous
923	* mode will be ignored. */
924	rc = CFGMR3QueryBoolDef(pCfg, "IgnoreClientPromisc", &f, false);
925	if (RT_FAILURE(rc))
926	return PDMDRV_SET_ERROR(pDrvIns, rc,
927	N_("Configuration error: Failed to get the \"IgnoreClientPromisc\" value"));
928	if (f)
929	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_IGNORE_PROMISC; /** @todo add special flag for this. */
930
931	/** @cfgm{QuietlyIgnoreClientPromisc, boolean, false}
932	* When set all request for operating any non-trunk interface promiscuous mode
933	* will be ignored. This differs from IgnoreClientPromisc in that clients won't
934	* get VERR_INTNET_INCOMPATIBLE_FLAGS. */
935	rc = CFGMR3QueryBoolDef(pCfg, "QuietlyIgnoreClientPromisc", &f, false);
936	if (RT_FAILURE(rc))
937	return PDMDRV_SET_ERROR(pDrvIns, rc,
938	N_("Configuration error: Failed to get the \"QuietlyIgnoreClientPromisc\" value"));
939	if (f)
940	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_QUIETLY_IGNORE_PROMISC; /** @todo add special flag for this. */
941
942	/** @cfgm{IgnoreTrunkWirePromisc, boolean, false}
943	* When set all request for operating the trunk-wire connection in promiscuous
944	* mode will be ignored. */
945	rc = CFGMR3QueryBoolDef(pCfg, "IgnoreTrunkWirePromisc", &f, false);
946	if (RT_FAILURE(rc))
947	return PDMDRV_SET_ERROR(pDrvIns, rc,
948	N_("Configuration error: Failed to get the \"IgnoreTrunkWirePromisc\" value"));
949	if (f)
950	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_IGNORE_PROMISC_TRUNK_WIRE;
951
952	/** @cfgm{QuietlyIgnoreTrunkWirePromisc, boolean, false}
953	* When set all request for operating any trunk-wire connection promiscuous mode
954	* will be ignored. This differs from IgnoreTrunkWirePromisc in that clients
955	* won't get VERR_INTNET_INCOMPATIBLE_FLAGS. */
956	rc = CFGMR3QueryBoolDef(pCfg, "QuietlyIgnoreTrunkWirePromisc", &f, false);
957	if (RT_FAILURE(rc))
958	return PDMDRV_SET_ERROR(pDrvIns, rc,
959	N_("Configuration error: Failed to get the \"QuietlyIgnoreTrunkWirePromisc\" value"));
960	if (f)
961	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_QUIETLY_IGNORE_PROMISC_TRUNK_WIRE;
962
963	/** @cfgm{IgnoreTrunkHostPromisc, boolean, false}
964	* When set all request for operating the trunk-host connection in promiscuous
965	* mode will be ignored. */
966	rc = CFGMR3QueryBoolDef(pCfg, "IgnoreTrunkHostPromisc", &f, false);
967	if (RT_FAILURE(rc))
968	return PDMDRV_SET_ERROR(pDrvIns, rc,
969	N_("Configuration error: Failed to get the \"IgnoreTrunkHostPromisc\" value"));
970	if (f)
971	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_IGNORE_PROMISC_TRUNK_HOST;
972
973	/** @cfgm{QuietlyIgnoreTrunkHostPromisc, boolean, false}
974	* When set all request for operating any trunk-host connection promiscuous mode
975	* will be ignored. This differs from IgnoreTrunkHostPromisc in that clients
976	* won't get VERR_INTNET_INCOMPATIBLE_FLAGS. */
977	rc = CFGMR3QueryBoolDef(pCfg, "QuietlyIgnoreTrunkHostPromisc", &f, false);
978	if (RT_FAILURE(rc))
979	return PDMDRV_SET_ERROR(pDrvIns, rc,
980	N_("Configuration error: Failed to get the \"QuietlyIgnoreTrunkHostPromisc\" value"));
981	if (f)
982	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_QUIETLY_IGNORE_PROMISC_TRUNK_HOST;
983
984	/** @todo flags for not sending to the host and for setting the trunk-wire
985	* connection in promiscuous mode. */
986
987
988	/** @cfgm{SharedMacOnWire, boolean, false}
989	* Whether to shared the MAC address of the host interface when using the wire. When
990	* attaching to a wireless NIC this option is usally a requirement.
991	*/
992	bool fSharedMacOnWire;
993	rc = CFGMR3QueryBoolDef(pCfg, "SharedMacOnWire", &fSharedMacOnWire, false);
994	if (RT_FAILURE(rc))
995	return PDMDRV_SET_ERROR(pDrvIns, rc,
996	N_("Configuration error: Failed to get the \"SharedMacOnWire\" value"));
997	if (fSharedMacOnWire)
998	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE;
999
1000	/** @cfgm{ReceiveBufferSize, uint32_t, 218 KB}
1001	* The size of the receive buffer.
1002	*/
1003	rc = CFGMR3QueryU32(pCfg, "ReceiveBufferSize", &OpenReq.cbRecv);
1004	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1005	OpenReq.cbRecv = 218 * _1K ;
1006	else if (RT_FAILURE(rc))
1007	return PDMDRV_SET_ERROR(pDrvIns, rc,
1008	N_("Configuration error: Failed to get the \"ReceiveBufferSize\" value"));
1009
1010	/** @cfgm{SendBufferSize, uint32_t, 36 KB}
1011	* The size of the send (transmit) buffer.
1012	* This should be more than twice the size of the larges frame size because
1013	* the ring buffer is very simple and doesn't support splitting up frames
1014	* nor inserting padding. So, if this is too close to the frame size the
1015	* header will fragment the buffer such that the frame won't fit on either
1016	* side of it and the code will get very upset about it all.
1017	*/
1018	rc = CFGMR3QueryU32(pCfg, "SendBufferSize", &OpenReq.cbSend);
1019	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1020	OpenReq.cbSend = 36*_1K;
1021	else if (RT_FAILURE(rc))
1022	return PDMDRV_SET_ERROR(pDrvIns, rc,
1023	N_("Configuration error: Failed to get the \"SendBufferSize\" value"));
1024	if (OpenReq.cbSend < 32)
1025	return PDMDRV_SET_ERROR(pDrvIns, rc,
1026	N_("Configuration error: The \"SendBufferSize\" value is too small"));
1027	if (OpenReq.cbSend < 16384*2 + 64)
1028	LogRel(("DrvIntNet: Warning! SendBufferSize=%u, Recommended minimum size %u butes.\n", OpenReq.cbSend, 16384*2 + 64));
1029
1030	/** @cfgm{IsService, boolean, true}
1031	* This alterns the way the thread is suspended and resumed. When it's being used by
1032	* a service such as LWIP/iSCSI it shouldn't suspend immediately like for a NIC.
1033	*/
1034	rc = CFGMR3QueryBool(pCfg, "IsService", &pThis->fActivateEarlyDeactivateLate);
1035	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1036	pThis->fActivateEarlyDeactivateLate = false;
1037	else if (RT_FAILURE(rc))
1038	return PDMDRV_SET_ERROR(pDrvIns, rc,
1039	N_("Configuration error: Failed to get the \"IsService\" value"));
1040
1041	LogRel(("IntNet#%u: szNetwork={%s} enmTrunkType=%d szTrunk={%s} fFlags=%#x cbRecv=%u cbSend=%u\n",
1042	pDrvIns->iInstance, OpenReq.szNetwork, OpenReq.enmTrunkType, OpenReq.szTrunk, OpenReq.fFlags,
1043	OpenReq.cbRecv, OpenReq.cbSend));
1044
1045	#ifdef RT_OS_DARWIN
1046	/* Temporary hack: attach to a network with the name 'if=en0' and you're hitting the wire. */
1047	if ( !OpenReq.szTrunk[0]
1048	&& OpenReq.enmTrunkType == kIntNetTrunkType_None
1049	&& !strncmp(pThis->szNetwork, "if=en", sizeof("if=en") - 1)
1050	&& RT_C_IS_DIGIT(pThis->szNetwork[sizeof("if=en") - 1])
1051	&& !pThis->szNetwork[sizeof("if=en")])
1052	{
1053	OpenReq.enmTrunkType = kIntNetTrunkType_NetFlt;
1054	strcpy(OpenReq.szTrunk, &pThis->szNetwork[sizeof("if=") - 1]);
1055	}
1056	/* Temporary hack: attach to a network with the name 'wif=en0' and you're on the air. */
1057	if ( !OpenReq.szTrunk[0]
1058	&& OpenReq.enmTrunkType == kIntNetTrunkType_None
1059	&& !strncmp(pThis->szNetwork, "wif=en", sizeof("wif=en") - 1)
1060	&& RT_C_IS_DIGIT(pThis->szNetwork[sizeof("wif=en") - 1])
1061	&& !pThis->szNetwork[sizeof("wif=en")])
1062	{
1063	OpenReq.enmTrunkType = kIntNetTrunkType_NetFlt;
1064	OpenReq.fFlags \|= INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE;
1065	strcpy(OpenReq.szTrunk, &pThis->szNetwork[sizeof("wif=") - 1]);
1066	}
1067	#endif /* DARWIN */
1068
1069	/*
1070	* Create the event semaphore and S/G cache.
1071	*/
1072	rc = RTSemEventCreate(&pThis->hEvtSuspended);
1073	if (RT_FAILURE(rc))
1074	return rc;
1075	rc = RTMemCacheCreate(&pThis->hSgCache, sizeof(PDMSCATTERGATHER), 0, UINT32_MAX, NULL, NULL, pThis, 0);
1076	if (RT_FAILURE(rc))
1077	return rc;
1078
1079	/*
1080	* Create the interface.
1081	*/
1082	OpenReq.hIf = INTNET_HANDLE_INVALID;
1083	rc = PDMDrvHlpSUPCallVMMR0Ex(pDrvIns, VMMR0_DO_INTNET_OPEN, &OpenReq, sizeof(OpenReq));
1084	if (RT_FAILURE(rc))
1085	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
1086	N_("Failed to open/create the internal network '%s'"), pThis->szNetwork);
1087	AssertRelease(OpenReq.hIf != INTNET_HANDLE_INVALID);
1088	pThis->hIf = OpenReq.hIf;
1089	Log(("IntNet%d: hIf=%RX32 '%s'\n", pDrvIns->iInstance, pThis->hIf, pThis->szNetwork));
1090
1091	/*
1092	* Get default buffer.
1093	*/
1094	INTNETIFGETRING3BUFFERREQ GetRing3BufferReq;
1095	GetRing3BufferReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
1096	GetRing3BufferReq.Hdr.cbReq = sizeof(GetRing3BufferReq);
1097	GetRing3BufferReq.pSession = NIL_RTR0PTR;
1098	GetRing3BufferReq.hIf = pThis->hIf;
1099	GetRing3BufferReq.pRing3Buf = NULL;
1100	rc = PDMDrvHlpSUPCallVMMR0Ex(pDrvIns, VMMR0_DO_INTNET_IF_GET_RING3_BUFFER, &GetRing3BufferReq, sizeof(GetRing3BufferReq));
1101	if (RT_FAILURE(rc))
1102	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
1103	N_("Failed to get ring-3 buffer for the newly created interface to '%s'"), pThis->szNetwork);
1104	AssertRelease(VALID_PTR(GetRing3BufferReq.pRing3Buf));
1105	pThis->pBufR3 = GetRing3BufferReq.pRing3Buf;
1106
1107	/*
1108	* Create the async I/O thread.
1109	* Note! Using a PDM thread here doesn't fit with the IsService=true operation.
1110	*/
1111	rc = RTThreadCreate(&pThis->Thread, drvR3IntNetAsyncIoThread, pThis, _128K, RTTHREADTYPE_IO, RTTHREADFLAGS_WAITABLE, "INTNET");
1112	if (RT_FAILURE(rc))
1113	{
1114	AssertRC(rc);
1115	return rc;
1116	}
1117	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->pBufR3->Recv.cbStatWritten, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Number of received bytes.", "/Net/IntNet%d/Bytes/Received", pDrvIns->iInstance);
1118	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->pBufR3->Send.cbStatWritten, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Number of sent bytes.", "/Net/IntNet%d/Bytes/Sent", pDrvIns->iInstance);
1119	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->pBufR3->Recv.cOverflows, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number overflows.", "/Net/IntNet%d/Overflows/Recv", pDrvIns->iInstance);
1120	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->pBufR3->Send.cOverflows, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number overflows.", "/Net/IntNet%d/Overflows/Sent", pDrvIns->iInstance);
1121	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->pBufR3->Recv.cStatFrames, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number of received packets.", "/Net/IntNet%d/Packets/Received", pDrvIns->iInstance);
1122	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->pBufR3->Send.cStatFrames, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number of sent packets.", "/Net/IntNet%d/Packets/Sent", pDrvIns->iInstance);
1123	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->pBufR3->cStatLost, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number of lost packets.", "/Net/IntNet%d/Packets/Lost", pDrvIns->iInstance);
1124	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->pBufR3->cStatYieldsNok, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number of times yielding helped fix an overflow.", "/Net/IntNet%d/YieldOk", pDrvIns->iInstance);
1125	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->pBufR3->cStatYieldsOk, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number of times yielding didn't help fix an overflow.", "/Net/IntNet%d/YieldNok", pDrvIns->iInstance);
1126	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->pBufR3->cStatBadFrames, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number of bad frames seed by the consumers.", "/Net/IntNet%d/BadFrames", pDrvIns->iInstance);
1127	#ifdef VBOX_WITH_STATISTICS
1128	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatReceive, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling packet receive runs.", "/Net/IntNet%d/Receive", pDrvIns->iInstance);
1129	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatTransmit, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling packet transmit runs.", "/Net/IntNet%d/Transmit", pDrvIns->iInstance);
1130	#endif
1131
1132	/*
1133	* Activate data transmission as early as possible
1134	*/
1135	if (pThis->fActivateEarlyDeactivateLate)
1136	{
1137	ASMAtomicXchgSize(&pThis->enmState, ASYNCSTATE_RUNNING);
1138	RTSemEventSignal(pThis->hEvtSuspended);
1139	drvR3IntNetUpdateMacAddress(pThis);
1140	drvR3IntNetSetActive(pThis, true /* fActive */);
1141	}
1142
1143	return rc;
1144	}
1145
1146
1147	/**
1148	* Internal networking transport driver registration record.
1149	*/
1150	const PDMDRVREG g_DrvIntNet =
1151	{
1152	/* u32Version */
1153	PDM_DRVREG_VERSION,
1154	/* szName */
1155	"IntNet",
1156	/* szRCMod */
1157	"VBoxDD",
1158	/* szR0Mod */
1159	"VBoxDD",
1160	/* pszDescription */
1161	"Internal Networking Transport Driver",
1162	/* fFlags */
1163	#ifdef VBOX_WITH_R0_AND_RC_DRIVERS
1164	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT \| PDM_DRVREG_FLAGS_R0 \| PDM_DRVREG_FLAGS_RC,
1165	#else
1166	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
1167	#endif
1168	/* fClass. */
1169	PDM_DRVREG_CLASS_NETWORK,
1170	/* cMaxInstances */
1171	~0,
1172	/* cbInstance */
1173	sizeof(DRVINTNET),
1174	/* pfnConstruct */
1175	drvR3IntNetConstruct,
1176	/* pfnDestruct */
1177	drvR3IntNetDestruct,
1178	/* pfnRelocate */
1179	NULL,
1180	/* pfnIOCtl */
1181	NULL,
1182	/* pfnPowerOn */
1183	drvR3IntNetPowerOn,
1184	/* pfnReset */
1185	NULL,
1186	/* pfnSuspend */
1187	drvR3IntNetSuspend,
1188	/* pfnResume */
1189	drvR3IntNetResume,
1190	/* pfnAttach */
1191	NULL,
1192	/* pfnDetach */
1193	NULL,
1194	/* pfnPowerOff */
1195	drvR3IntNetPowerOff,
1196	/* pfnSoftReset */
1197	NULL,
1198	/* u32EndVersion */
1199	PDM_DRVREG_VERSION
1200	};
1201
1202	#endif /* IN_RING3 */
1203

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source: vbox/trunk/src/VBox/Devices/Network/DrvIntNet.cpp@ 26597

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