DrvTAP.cpp@ 26989

Last change on this file since 26989 was 26305, checked in by vboxsync, 15 years ago
pdmnetif.h & users: sketched out a new interface that is intended to be similar to the ring-0 and raw-mode context interfaces (working on driver allocated buffers during xmit).
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 38.5 KB

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1	/* $Id: DrvTAP.cpp 26305 2010-02-05 19:00:45Z vboxsync $ */
2	/** @file
3	* DrvTAP - Universial TAP 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_TUN
26	#include <VBox/log.h>
27	#include <VBox/pdmdrv.h>
28	#include <VBox/pdmnetifs.h>
29
30	#include <iprt/asm.h>
31	#include <iprt/assert.h>
32	#include <iprt/ctype.h>
33	#include <iprt/file.h>
34	#include <iprt/path.h>
35	#include <iprt/semaphore.h>
36	#include <iprt/string.h>
37	#include <iprt/thread.h>
38	#include <iprt/uuid.h>
39	#ifdef RT_OS_SOLARIS
40	# include <iprt/process.h>
41	# include <iprt/env.h>
42	# ifdef VBOX_WITH_CROSSBOW
43	# include <iprt/mem.h>
44	# endif
45	#endif
46
47	#include <sys/ioctl.h>
48	#include <sys/poll.h>
49	#ifdef RT_OS_SOLARIS
50	# include <sys/stat.h>
51	# include <sys/ethernet.h>
52	# include <sys/sockio.h>
53	# include <netinet/in.h>
54	# include <netinet/in_systm.h>
55	# include <netinet/ip.h>
56	# include <netinet/ip_icmp.h>
57	# include <netinet/udp.h>
58	# include <netinet/tcp.h>
59	# include <net/if.h>
60	# include <stropts.h>
61	# include <fcntl.h>
62	# include <stdlib.h>
63	# include <stdio.h>
64	# ifdef VBOX_WITH_CROSSBOW
65	# include "solaris/vbox-libdlpi.h"
66	# endif
67	#else
68	# include <sys/fcntl.h>
69	#endif
70	#include <errno.h>
71	#include <unistd.h>
72
73	#ifdef RT_OS_L4
74	# include <l4/vboxserver/file.h>
75	#endif
76
77	#include "Builtins.h"
78
79
80	/*******************************************************************************
81	* Structures and Typedefs *
82	*******************************************************************************/
83	/**
84	* TAP driver instance data.
85	*
86	* @implements PDMINETWORKUP
87	*/
88	typedef struct DRVTAP
89	{
90	/** The network interface. */
91	PDMINETWORKUP INetworkUp;
92	/** The network interface. */
93	PPDMINETWORKDOWN pIAboveNet;
94	/** Pointer to the driver instance. */
95	PPDMDRVINS pDrvIns;
96	/** TAP device file handle. */
97	RTFILE FileDevice;
98	/** The configured TAP device name. */
99	char *pszDeviceName;
100	#ifdef RT_OS_SOLARIS
101	# ifdef VBOX_WITH_CROSSBOW
102	/** Crossbow: MAC address of the device. */
103	RTMAC MacAddress;
104	/** Crossbow: Handle of the NIC. */
105	dlpi_handle_t pDeviceHandle;
106	# else
107	/** IP device file handle (/dev/udp). */
108	RTFILE IPFileDevice;
109	# endif
110	/** Whether device name is obtained from setup application. */
111	bool fStatic;
112	#endif
113	/** TAP setup application. */
114	char *pszSetupApplication;
115	/** TAP terminate application. */
116	char *pszTerminateApplication;
117	/** The write end of the control pipe. */
118	RTFILE PipeWrite;
119	/** The read end of the control pipe. */
120	RTFILE PipeRead;
121	/** Reader thread. */
122	PPDMTHREAD pThread;
123
124	#ifdef VBOX_WITH_STATISTICS
125	/** Number of sent packets. */
126	STAMCOUNTER StatPktSent;
127	/** Number of sent bytes. */
128	STAMCOUNTER StatPktSentBytes;
129	/** Number of received packets. */
130	STAMCOUNTER StatPktRecv;
131	/** Number of received bytes. */
132	STAMCOUNTER StatPktRecvBytes;
133	/** Profiling packet transmit runs. */
134	STAMPROFILE StatTransmit;
135	/** Profiling packet receive runs. */
136	STAMPROFILEADV StatReceive;
137	#endif /* VBOX_WITH_STATISTICS */
138
139	#ifdef LOG_ENABLED
140	/** The nano ts of the last transfer. */
141	uint64_t u64LastTransferTS;
142	/** The nano ts of the last receive. */
143	uint64_t u64LastReceiveTS;
144	#endif
145	} DRVTAP, *PDRVTAP;
146
147
148	/** Converts a pointer to TAP::INetworkUp to a PRDVTAP. */
149	#define PDMINETWORKUP_2_DRVTAP(pInterface) ( (PDRVTAP)((uintptr_t)pInterface - RT_OFFSETOF(DRVTAP, INetworkUp)) )
150
151
152	/*******************************************************************************
153	* Internal Functions *
154	*******************************************************************************/
155	#ifdef RT_OS_SOLARIS
156	# ifdef VBOX_WITH_CROSSBOW
157	static int SolarisOpenVNIC(PDRVTAP pThis);
158	static int SolarisDLPIErr2VBoxErr(int rc);
159	# else
160	static int SolarisTAPAttach(PDRVTAP pThis);
161	# endif
162	#endif
163
164
165	/**
166	* @interface_method_impl{PDMINETWORKUP,pfnSendDeprecated}
167	*/
168	static DECLCALLBACK(int) drvTAPSendDeprecated(PPDMINETWORKUP pInterface, const void *pvBuf, size_t cb)
169	{
170	PDRVTAP pThis = PDMINETWORKUP_2_DRVTAP(pInterface);
171	STAM_COUNTER_INC(&pThis->StatPktSent);
172	STAM_COUNTER_ADD(&pThis->StatPktSentBytes, cb);
173	STAM_PROFILE_START(&pThis->StatTransmit, a);
174
175	#ifdef LOG_ENABLED
176	uint64_t u64Now = RTTimeProgramNanoTS();
177	LogFlow(("drvTAPSend: %-4d bytes at %llu ns deltas: r=%llu t=%llu\n",
178	cb, u64Now, u64Now - pThis->u64LastReceiveTS, u64Now - pThis->u64LastTransferTS));
179	pThis->u64LastTransferTS = u64Now;
180	#endif
181	Log2(("drvTAPSend: pvBuf=%p cb=%#x\n"
182	"%.*Rhxd\n",
183	pvBuf, cb, cb, pvBuf));
184
185	int rc = RTFileWrite(pThis->FileDevice, pvBuf, cb, NULL);
186
187	STAM_PROFILE_STOP(&pThis->StatTransmit, a);
188	AssertRC(rc);
189	return rc;
190	}
191
192
193	/**
194	* @interface_method_impl{PDMINETWORKUP,pfnSetPromiscuousMode}
195	*/
196	static DECLCALLBACK(void) drvTAPSetPromiscuousMode(PPDMINETWORKUP pInterface, bool fPromiscuous)
197	{
198	LogFlow(("drvTAPSetPromiscuousMode: fPromiscuous=%d\n", fPromiscuous));
199	/* nothing to do */
200	}
201
202
203	/**
204	* Notification on link status changes.
205	*
206	* @param pInterface Pointer to the interface structure containing the called function pointer.
207	* @param enmLinkState The new link state.
208	* @thread EMT
209	*/
210	static DECLCALLBACK(void) drvTAPNotifyLinkChanged(PPDMINETWORKUP pInterface, PDMNETWORKLINKSTATE enmLinkState)
211	{
212	LogFlow(("drvNATNotifyLinkChanged: enmLinkState=%d\n", enmLinkState));
213	/** @todo take action on link down and up. Stop the polling and such like. */
214	}
215
216
217	/**
218	* Asynchronous I/O thread for handling receive.
219	*
220	* @returns VINF_SUCCESS (ignored).
221	* @param Thread Thread handle.
222	* @param pvUser Pointer to a DRVTAP structure.
223	*/
224	static DECLCALLBACK(int) drvTAPAsyncIoThread(PPDMDRVINS pDrvIns, PPDMTHREAD pThread)
225	{
226	PDRVTAP pThis = PDMINS_2_DATA(pDrvIns, PDRVTAP);
227	LogFlow(("drvTAPAsyncIoThread: pThis=%p\n", pThis));
228
229	if (pThread->enmState == PDMTHREADSTATE_INITIALIZING)
230	return VINF_SUCCESS;
231
232	STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
233
234	/*
235	* Polling loop.
236	*/
237	while (pThread->enmState == PDMTHREADSTATE_RUNNING)
238	{
239	/*
240	* Wait for something to become available.
241	*/
242	struct pollfd aFDs[2];
243	aFDs[0].fd = pThis->FileDevice;
244	aFDs[0].events = POLLIN \| POLLPRI;
245	aFDs[0].revents = 0;
246	aFDs[1].fd = pThis->PipeRead;
247	aFDs[1].events = POLLIN \| POLLPRI \| POLLERR \| POLLHUP;
248	aFDs[1].revents = 0;
249	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
250	errno=0;
251	int rc = poll(&aFDs[0], RT_ELEMENTS(aFDs), -1 /* infinite */);
252
253	/* this might have changed in the meantime */
254	if (pThread->enmState != PDMTHREADSTATE_RUNNING)
255	break;
256
257	STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
258	if ( rc > 0
259	&& (aFDs[0].revents & (POLLIN \| POLLPRI))
260	&& !aFDs[1].revents)
261	{
262	/*
263	* Read the frame.
264	*/
265	char achBuf[16384];
266	size_t cbRead = 0;
267	#ifdef VBOX_WITH_CROSSBOW
268	cbRead = sizeof(achBuf);
269	rc = g_pfnLibDlpiRecv(pThis->pDeviceHandle, NULL, NULL, achBuf, &cbRead, -1, NULL);
270	rc = RT_LIKELY(rc == DLPI_SUCCESS) ? VINF_SUCCESS : SolarisDLPIErr2VBoxErr(rc);
271	#else
272	/** @note At least on Linux we will never receive more than one network packet
273	* after poll() returned successfully. I don't know why but a second
274	* RTFileRead() operation will return with VERR_TRY_AGAIN in any case. */
275	rc = RTFileRead(pThis->FileDevice, achBuf, sizeof(achBuf), &cbRead);
276	#endif
277	if (RT_SUCCESS(rc))
278	{
279	/*
280	* Wait for the device to have space for this frame.
281	* Most guests use frame-sized receive buffers, hence non-zero cbMax
282	* automatically means there is enough room for entire frame. Some
283	* guests (eg. Solaris) use large chains of small receive buffers
284	* (each 128 or so bytes large). We will still start receiving as soon
285	* as cbMax is non-zero because:
286	* - it would be quite expensive for pfnCanReceive to accurately
287	* determine free receive buffer space
288	* - if we were waiting for enough free buffers, there is a risk
289	* of deadlocking because the guest could be waiting for a receive
290	* overflow error to allocate more receive buffers
291	*/
292	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
293	int rc1 = pThis->pIAboveNet->pfnWaitReceiveAvail(pThis->pIAboveNet, RT_INDEFINITE_WAIT);
294	STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
295
296	/*
297	* A return code != VINF_SUCCESS means that we were woken up during a VM
298	* state transistion. Drop the packet and wait for the next one.
299	*/
300	if (RT_FAILURE(rc1))
301	continue;
302
303	/*
304	* Pass the data up.
305	*/
306	#ifdef LOG_ENABLED
307	uint64_t u64Now = RTTimeProgramNanoTS();
308	LogFlow(("drvTAPAsyncIoThread: %-4d bytes at %llu ns deltas: r=%llu t=%llu\n",
309	cbRead, u64Now, u64Now - pThis->u64LastReceiveTS, u64Now - pThis->u64LastTransferTS));
310	pThis->u64LastReceiveTS = u64Now;
311	#endif
312	Log2(("drvTAPAsyncIoThread: cbRead=%#x\n" "%.*Rhxd\n", cbRead, cbRead, achBuf));
313	STAM_COUNTER_INC(&pThis->StatPktRecv);
314	STAM_COUNTER_ADD(&pThis->StatPktRecvBytes, cbRead);
315	rc1 = pThis->pIAboveNet->pfnReceive(pThis->pIAboveNet, achBuf, cbRead);
316	AssertRC(rc1);
317	}
318	else
319	{
320	LogFlow(("drvTAPAsyncIoThread: RTFileRead -> %Rrc\n", rc));
321	if (rc == VERR_INVALID_HANDLE)
322	break;
323	RTThreadYield();
324	}
325	}
326	else if ( rc > 0
327	&& aFDs[1].revents)
328	{
329	LogFlow(("drvTAPAsyncIoThread: Control message: enmState=%d revents=%#x\n", pThread->enmState, aFDs[1].revents));
330	if (aFDs[1].revents & (POLLHUP \| POLLERR \| POLLNVAL))
331	break;
332
333	/* drain the pipe */
334	char ch;
335	size_t cbRead;
336	RTFileRead(pThis->PipeRead, &ch, 1, &cbRead);
337	}
338	else
339	{
340	/*
341	* poll() failed for some reason. Yield to avoid eating too much CPU.
342	*
343	* EINTR errors have been seen frequently. They should be harmless, even
344	* if they are not supposed to occur in our setup.
345	*/
346	if (errno == EINTR)
347	Log(("rc=%d revents=%#x,%#x errno=%p %s\n", rc, aFDs[0].revents, aFDs[1].revents, errno, strerror(errno)));
348	else
349	AssertMsgFailed(("rc=%d revents=%#x,%#x errno=%p %s\n", rc, aFDs[0].revents, aFDs[1].revents, errno, strerror(errno)));
350	RTThreadYield();
351	}
352	}
353
354
355	LogFlow(("drvTAPAsyncIoThread: returns %Rrc\n", VINF_SUCCESS));
356	STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
357	return VINF_SUCCESS;
358	}
359
360
361	/**
362	* Unblock the send thread so it can respond to a state change.
363	*
364	* @returns VBox status code.
365	* @param pDevIns The pcnet device instance.
366	* @param pThread The send thread.
367	*/
368	static DECLCALLBACK(int) drvTapAsyncIoWakeup(PPDMDRVINS pDrvIns, PPDMTHREAD pThread)
369	{
370	PDRVTAP pThis = PDMINS_2_DATA(pDrvIns, PDRVTAP);
371
372	int rc = RTFileWrite(pThis->PipeWrite, "", 1, NULL);
373	AssertRC(rc);
374
375	return VINF_SUCCESS;
376	}
377
378
379	#if defined(RT_OS_SOLARIS)
380	/**
381	* Calls OS-specific TAP setup application/script.
382	*
383	* @returns VBox error code.
384	* @param pThis The instance data.
385	*/
386	static int drvTAPSetupApplication(PDRVTAP pThis)
387	{
388	char szCommand[4096];
389
390	#ifdef VBOX_WITH_CROSSBOW
391	/* Convert MAC address bytes to string (required by Solaris' dladm). */
392	char *pszHex = "0123456789abcdef";
393	uint8_t *pMacAddr8 = pThis->MacAddress.au8;
394	char szMacAddress[3 * sizeof(RTMAC)];
395	for (unsigned int i = 0; i < sizeof(RTMAC); i++)
396	{
397	szMacAddress[3 * i] = pszHex[((*pMacAddr8 >> 4) & 0x0f)];
398	szMacAddress[3 * i + 1] = pszHex[(*pMacAddr8 & 0x0f)];
399	szMacAddress[3 * i + 2] = ':';
400	*pMacAddr8++;
401	}
402	szMacAddress[sizeof(szMacAddress) - 1] = 0;
403
404	RTStrPrintf(szCommand, sizeof(szCommand), "%s %s %s", pThis->pszSetupApplication,
405	szMacAddress, pThis->fStatic ? pThis->pszDeviceName : "");
406	#else
407	RTStrPrintf(szCommand, sizeof(szCommand), "%s %s", pThis->pszSetupApplication,
408	pThis->fStatic ? pThis->pszDeviceName : "");
409	#endif
410
411	/* Pipe open the setup application. */
412	Log2(("Starting TAP setup application: %s\n", szCommand));
413	FILE* pfSetupHandle = popen(szCommand, "r");
414	if (pfSetupHandle == 0)
415	{
416	LogRel(("TAP#%d: Failed to run TAP setup application: %s\n", pThis->pDrvIns->iInstance,
417	pThis->pszSetupApplication, strerror(errno)));
418	return VERR_HOSTIF_INIT_FAILED;
419	}
420	if (!pThis->fStatic)
421	{
422	/* Obtain device name from setup application. */
423	char acBuffer[64];
424	size_t cBufSize;
425	fgets(acBuffer, sizeof(acBuffer), pfSetupHandle);
426	cBufSize = strlen(acBuffer);
427	/* The script must return the name of the interface followed by a carriage return as the
428	first line of its output. We need a null-terminated string. */
429	if ((cBufSize < 2) \|\| (acBuffer[cBufSize - 1] != '\n'))
430	{
431	pclose(pfSetupHandle);
432	LogRel(("The TAP interface setup script did not return the name of a TAP device.\n"));
433	return VERR_HOSTIF_INIT_FAILED;
434	}
435	/* Overwrite the terminating newline character. */
436	acBuffer[cBufSize - 1] = 0;
437	RTStrAPrintf(&pThis->pszDeviceName, "%s", acBuffer);
438	}
439	int rc = pclose(pfSetupHandle);
440	if (!WIFEXITED(rc))
441	{
442	LogRel(("The TAP interface setup script terminated abnormally.\n"));
443	return VERR_HOSTIF_INIT_FAILED;
444	}
445	if (WEXITSTATUS(rc) != 0)
446	{
447	LogRel(("The TAP interface setup script returned a non-zero exit code.\n"));
448	return VERR_HOSTIF_INIT_FAILED;
449	}
450	return VINF_SUCCESS;
451	}
452
453
454	/**
455	* Calls OS-specific TAP terminate application/script.
456	*
457	* @returns VBox error code.
458	* @param pThis The instance data.
459	*/
460	static int drvTAPTerminateApplication(PDRVTAP pThis)
461	{
462	char *pszArgs[3];
463	pszArgs[0] = pThis->pszTerminateApplication;
464	pszArgs[1] = pThis->pszDeviceName;
465	pszArgs[2] = NULL;
466
467	Log2(("Starting TAP terminate application: %s %s\n", pThis->pszTerminateApplication, pThis->pszDeviceName));
468	RTPROCESS pid = NIL_RTPROCESS;
469	int rc = RTProcCreate(pszArgs[0], pszArgs, RTENV_DEFAULT, 0, &pid);
470	if (RT_SUCCESS(rc))
471	{
472	RTPROCSTATUS Status;
473	rc = RTProcWait(pid, 0, &Status);
474	if (RT_SUCCESS(rc))
475	{
476	if ( Status.iStatus == 0
477	&& Status.enmReason == RTPROCEXITREASON_NORMAL)
478	return VINF_SUCCESS;
479
480	LogRel(("TAP#%d: Error running TAP terminate application: %s\n", pThis->pDrvIns->iInstance, pThis->pszTerminateApplication));
481	}
482	else
483	LogRel(("TAP#%d: RTProcWait failed for: %s\n", pThis->pDrvIns->iInstance, pThis->pszTerminateApplication));
484	}
485	else
486	{
487	/* Bad. RTProcCreate() failed! */
488	LogRel(("TAP#%d: Failed to fork() process for running TAP terminate application: %s\n", pThis->pDrvIns->iInstance,
489	pThis->pszTerminateApplication, strerror(errno)));
490	}
491	return VERR_HOSTIF_TERM_FAILED;
492	}
493
494	#endif /* RT_OS_SOLARIS */
495
496
497	#ifdef RT_OS_SOLARIS
498	# ifdef VBOX_WITH_CROSSBOW
499	/**
500	* Crossbow: Open & configure the virtual NIC.
501	*
502	* @returns VBox error code.
503	* @param pThis The instance data.
504	*/
505	static int SolarisOpenVNIC(PDRVTAP pThis)
506	{
507	/*
508	* Open & bind the NIC using the datalink provider routine.
509	*/
510	int rc = g_pfnLibDlpiOpen(pThis->pszDeviceName, &pThis->pDeviceHandle, DLPI_RAW);
511	if (rc != DLPI_SUCCESS)
512	return PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
513	N_("Failed to open VNIC \"%s\" in raw mode"), pThis->pszDeviceName);
514
515	dlpi_info_t vnicInfo;
516	rc = g_pfnLibDlpiInfo(pThis->pDeviceHandle, &vnicInfo, 0);
517	if (rc == DLPI_SUCCESS)
518	{
519	if (vnicInfo.di_mactype == DL_ETHER)
520	{
521	rc = g_pfnLibDlpiBind(pThis->pDeviceHandle, DLPI_ANY_SAP, NULL);
522	if (rc == DLPI_SUCCESS)
523	{
524	rc = g_pfnLibDlpiSetPhysAddr(pThis->pDeviceHandle, DL_CURR_PHYS_ADDR, &pThis->MacAddress, ETHERADDRL);
525	if (rc == DLPI_SUCCESS)
526	{
527	rc = g_pfnLibDlpiPromiscon(pThis->pDeviceHandle, DL_PROMISC_SAP);
528	if (rc == DLPI_SUCCESS)
529	{
530	/* Need to use DL_PROMIS_PHYS (not multicast) as we cannot be sure what the guest needs. */
531	rc = g_pfnLibDlpiPromiscon(pThis->pDeviceHandle, DL_PROMISC_PHYS);
532	if (rc == DLPI_SUCCESS)
533	{
534	pThis->FileDevice = g_pfnLibDlpiFd(pThis->pDeviceHandle);
535	if (pThis->FileDevice >= 0)
536	{
537	Log(("SolarisOpenVNIC: %s -> %d\n", pThis->pszDeviceName, pThis->FileDevice));
538	return VINF_SUCCESS;
539	}
540
541	rc = PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
542	N_("Failed to obtain file descriptor for VNIC"));
543	}
544	else
545	rc = PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
546	N_("Failed to set appropriate promiscous mode"));
547	}
548	else
549	rc = PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
550	N_("Failed to activate promiscous mode for VNIC"));
551	}
552	else
553	rc = PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
554	N_("Failed to set physical address for VNIC"));
555	}
556	else
557	rc = PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
558	N_("Failed to bind VNIC"));
559	}
560	else
561	rc = PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
562	N_("VNIC type is not ethernet"));
563	}
564	else
565	rc = PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
566	N_("Failed to obtain VNIC info"));
567	g_pfnLibDlpiClose(pThis->pDeviceHandle);
568	return rc;
569	}
570
571
572	/**
573	* Crossbow: Converts a Solaris DLPI error code to a VBox error code.
574	*
575	* @returns corresponding VBox error code.
576	* @param rc DLPI error code (DLPI_* defines).
577	*/
578	static int SolarisDLPIErr2VBoxErr(int rc)
579	{
580	switch (rc)
581	{
582	case DLPI_SUCCESS: return VINF_SUCCESS;
583	case DLPI_EINVAL: return VERR_INVALID_PARAMETER;
584	case DLPI_ELINKNAMEINVAL: return VERR_INVALID_NAME;
585	case DLPI_EINHANDLE: return VERR_INVALID_HANDLE;
586	case DLPI_ETIMEDOUT: return VERR_TIMEOUT;
587	case DLPI_FAILURE: return VERR_GENERAL_FAILURE;
588
589	case DLPI_EVERNOTSUP:
590	case DLPI_EMODENOTSUP:
591	case DLPI_ERAWNOTSUP:
592	/* case DLPI_ENOTENOTSUP: */
593	case DLPI_EUNAVAILSAP: return VERR_NOT_SUPPORTED;
594
595	/* Define VBox error codes for these, if really needed. */
596	case DLPI_ENOLINK:
597	case DLPI_EBADLINK:
598	/* case DLPI_ENOTEIDINVAL: */
599	case DLPI_EBADMSG:
600	case DLPI_ENOTSTYLE2: return VERR_GENERAL_FAILURE;
601	}
602
603	AssertMsgFailed(("SolarisDLPIErr2VBoxErr: Unhandled error %d\n", rc));
604	return VERR_UNRESOLVED_ERROR;
605	}
606
607	# else /* VBOX_WITH_CROSSBOW */
608
609	/** From net/if_tun.h, installed by Universal TUN/TAP driver */
610	# define TUNNEWPPA (('T'<<16) \| 0x0001)
611	/** Whether to enable ARP for TAP. */
612	# define VBOX_SOLARIS_TAP_ARP 1
613
614	/**
615	* Creates/Attaches TAP device to IP.
616	*
617	* @returns VBox error code.
618	* @param pThis The instance data.
619	*/
620	static DECLCALLBACK(int) SolarisTAPAttach(PDRVTAP pThis)
621	{
622	LogFlow(("SolarisTapAttach: pThis=%p\n", pThis));
623
624
625	int IPFileDes = open("/dev/udp", O_RDWR, 0);
626	if (IPFileDes < 0)
627	return PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_PDM_HIF_OPEN_FAILED, RT_SRC_POS,
628	N_("Failed to open /dev/udp. errno=%d"), errno);
629
630	int TapFileDes = open("/dev/tap", O_RDWR, 0);
631	if (TapFileDes < 0)
632	return PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_PDM_HIF_OPEN_FAILED, RT_SRC_POS,
633	N_("Failed to open /dev/tap for TAP. errno=%d"), errno);
634
635	/* Use the PPA from the ifname if possible (e.g "tap2", then use 2 as PPA) */
636	int iPPA = -1;
637	if (pThis->pszDeviceName)
638	{
639	size_t cch = strlen(pThis->pszDeviceName);
640	if (cch > 1 && RT_C_IS_DIGIT(pThis->pszDeviceName[cch - 1]) != 0)
641	iPPA = pThis->pszDeviceName[cch - 1] - '0';
642	}
643
644	struct strioctl ioIF;
645	ioIF.ic_cmd = TUNNEWPPA;
646	ioIF.ic_len = sizeof(iPPA);
647	ioIF.ic_dp = (char *)(&iPPA);
648	ioIF.ic_timout = 0;
649	iPPA = ioctl(TapFileDes, I_STR, &ioIF);
650	if (iPPA < 0)
651	{
652	close(TapFileDes);
653	return PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_IOCTL, RT_SRC_POS,
654	N_("Failed to get new interface. errno=%d"), errno);
655	}
656
657	int InterfaceFD = open("/dev/tap", O_RDWR, 0);
658	if (!InterfaceFD)
659	return PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_PDM_HIF_OPEN_FAILED, RT_SRC_POS,
660	N_("Failed to open interface /dev/tap. errno=%d"), errno);
661
662	if (ioctl(InterfaceFD, I_PUSH, "ip") == -1)
663	{
664	close(InterfaceFD);
665	return PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_IOCTL, RT_SRC_POS,
666	N_("Failed to push IP. errno=%d"), errno);
667	}
668
669	struct lifreq ifReq;
670	memset(&ifReq, 0, sizeof(ifReq));
671	if (ioctl(InterfaceFD, SIOCGLIFFLAGS, &ifReq) == -1)
672	LogRel(("TAP#%d: Failed to get interface flags.\n", pThis->pDrvIns->iInstance));
673
674	ifReq.lifr_ppa = iPPA;
675	RTStrPrintf (ifReq.lifr_name, sizeof(ifReq.lifr_name), pThis->pszDeviceName);
676
677	if (ioctl(InterfaceFD, SIOCSLIFNAME, &ifReq) == -1)
678	LogRel(("TAP#%d: Failed to set PPA. errno=%d\n", pThis->pDrvIns->iInstance, errno));
679
680	if (ioctl(InterfaceFD, SIOCGLIFFLAGS, &ifReq) == -1)
681	LogRel(("TAP#%d: Failed to get interface flags after setting PPA. errno=%d\n", pThis->pDrvIns->iInstance, errno));
682
683	#ifdef VBOX_SOLARIS_TAP_ARP
684	/* Interface */
685	if (ioctl(InterfaceFD, I_PUSH, "arp") == -1)
686	LogRel(("TAP#%d: Failed to push ARP to Interface FD. errno=%d\n", pThis->pDrvIns->iInstance, errno));
687
688	/* IP */
689	if (ioctl(IPFileDes, I_POP, NULL) == -1)
690	LogRel(("TAP#%d: Failed I_POP from IP FD. errno=%d\n", pThis->pDrvIns->iInstance, errno));
691
692	if (ioctl(IPFileDes, I_PUSH, "arp") == -1)
693	LogRel(("TAP#%d: Failed to push ARP to IP FD. errno=%d\n", pThis->pDrvIns->iInstance, errno));
694
695	/* ARP */
696	int ARPFileDes = open("/dev/tap", O_RDWR, 0);
697	if (ARPFileDes < 0)
698	LogRel(("TAP#%d: Failed to open for /dev/tap for ARP. errno=%d", pThis->pDrvIns->iInstance, errno));
699
700	if (ioctl(ARPFileDes, I_PUSH, "arp") == -1)
701	LogRel(("TAP#%d: Failed to push ARP to ARP FD. errno=%d\n", pThis->pDrvIns->iInstance, errno));
702
703	ioIF.ic_cmd = SIOCSLIFNAME;
704	ioIF.ic_timout = 0;
705	ioIF.ic_len = sizeof(ifReq);
706	ioIF.ic_dp = (char *)&ifReq;
707	if (ioctl(ARPFileDes, I_STR, &ioIF) == -1)
708	LogRel(("TAP#%d: Failed to set interface name to ARP.\n", pThis->pDrvIns->iInstance));
709	#endif
710
711	/* We must use I_LINK and not I_PLINK as I_PLINK makes the link persistent.
712	* Then we would not be able unlink the interface if we reuse it.
713	* Even 'unplumb' won't work after that.
714	*/
715	int IPMuxID = ioctl(IPFileDes, I_LINK, InterfaceFD);
716	if (IPMuxID == -1)
717	{
718	close(InterfaceFD);
719	#ifdef VBOX_SOLARIS_TAP_ARP
720	close(ARPFileDes);
721	#endif
722	LogRel(("TAP#%d: Cannot link TAP device to IP.\n", pThis->pDrvIns->iInstance));
723	return PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_IOCTL, RT_SRC_POS,
724	N_("Failed to link TAP device to IP. Check TAP interface name. errno=%d"), errno);
725	}
726
727	#ifdef VBOX_SOLARIS_TAP_ARP
728	int ARPMuxID = ioctl(IPFileDes, I_LINK, ARPFileDes);
729	if (ARPMuxID == -1)
730	LogRel(("TAP#%d: Failed to link TAP device to ARP\n", pThis->pDrvIns->iInstance));
731
732	close(ARPFileDes);
733	#endif
734	close(InterfaceFD);
735
736	/* Reuse ifReq */
737	memset(&ifReq, 0, sizeof(ifReq));
738	RTStrPrintf (ifReq.lifr_name, sizeof(ifReq.lifr_name), pThis->pszDeviceName);
739	ifReq.lifr_ip_muxid = IPMuxID;
740	#ifdef VBOX_SOLARIS_TAP_ARP
741	ifReq.lifr_arp_muxid = ARPMuxID;
742	#endif
743
744	if (ioctl(IPFileDes, SIOCSLIFMUXID, &ifReq) == -1)
745	{
746	#ifdef VBOX_SOLARIS_TAP_ARP
747	ioctl(IPFileDes, I_PUNLINK, ARPMuxID);
748	#endif
749	ioctl(IPFileDes, I_PUNLINK, IPMuxID);
750	close(IPFileDes);
751	LogRel(("TAP#%d: Failed to set Mux ID.\n", pThis->pDrvIns->iInstance));
752	return PDMDrvHlpVMSetError(pThis->pDrvIns, VERR_HOSTIF_IOCTL, RT_SRC_POS,
753	N_("Failed to set Mux ID. Check TAP interface name. errno=%d"), errno);
754	}
755
756	pThis->FileDevice = (RTFILE)TapFileDes;
757	pThis->IPFileDevice = (RTFILE)IPFileDes;
758
759	return VINF_SUCCESS;
760	}
761
762	# endif /* VBOX_WITH_CROSSBOW */
763	#endif /* RT_OS_SOLARIS */
764
765	/* -=-=-=-=- PDMIBASE -=-=-=-=- */
766
767	/**
768	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
769	*/
770	static DECLCALLBACK(void ) drvTAPQueryInterface(PPDMIBASE pInterface, const char pszIID)
771	{
772	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
773	PDRVTAP pThis = PDMINS_2_DATA(pDrvIns, PDRVTAP);
774
775	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
776	PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKUP, &pThis->INetworkUp);
777	return NULL;
778	}
779
780	/* -=-=-=-=- PDMDRVREG -=-=-=-=- */
781
782	/**
783	* Destruct a driver instance.
784	*
785	* Most VM resources are freed by the VM. This callback is provided so that any non-VM
786	* resources can be freed correctly.
787	*
788	* @param pDrvIns The driver instance data.
789	*/
790	static DECLCALLBACK(void) drvTAPDestruct(PPDMDRVINS pDrvIns)
791	{
792	LogFlow(("drvTAPDestruct\n"));
793	PDRVTAP pThis = PDMINS_2_DATA(pDrvIns, PDRVTAP);
794	PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
795
796	/*
797	* Terminate the control pipe.
798	*/
799	if (pThis->PipeWrite != NIL_RTFILE)
800	{
801	int rc = RTFileClose(pThis->PipeWrite);
802	AssertRC(rc);
803	pThis->PipeWrite = NIL_RTFILE;
804	}
805	if (pThis->PipeRead != NIL_RTFILE)
806	{
807	int rc = RTFileClose(pThis->PipeRead);
808	AssertRC(rc);
809	pThis->PipeRead = NIL_RTFILE;
810	}
811
812	#ifdef RT_OS_SOLARIS
813	/** @todo r=bird: This does need checking against ConsoleImpl2.cpp if used on non-solaris systems. */
814	if (pThis->FileDevice != NIL_RTFILE)
815	{
816	int rc = RTFileClose(pThis->FileDevice);
817	AssertRC(rc);
818	pThis->FileDevice = NIL_RTFILE;
819	}
820
821	# ifndef VBOX_WITH_CROSSBOW
822	if (pThis->IPFileDevice != NIL_RTFILE)
823	{
824	int rc = RTFileClose(pThis->IPFileDevice);
825	AssertRC(rc);
826	pThis->IPFileDevice = NIL_RTFILE;
827	}
828	# endif
829
830	/*
831	* Call TerminateApplication after closing the device otherwise
832	* TerminateApplication would not be able to unplumb it.
833	*/
834	if (pThis->pszTerminateApplication)
835	drvTAPTerminateApplication(pThis);
836
837	#endif /* RT_OS_SOLARIS */
838
839	#ifdef RT_OS_SOLARIS
840	if (!pThis->fStatic)
841	RTStrFree(pThis->pszDeviceName); /* allocated by drvTAPSetupApplication */
842	else
843	MMR3HeapFree(pThis->pszDeviceName);
844	#else
845	MMR3HeapFree(pThis->pszDeviceName);
846	#endif
847	MMR3HeapFree(pThis->pszSetupApplication);
848	MMR3HeapFree(pThis->pszTerminateApplication);
849
850	#ifdef VBOX_WITH_STATISTICS
851	/*
852	* Deregister statistics.
853	*/
854	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatPktSent);
855	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatPktSentBytes);
856	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatPktRecv);
857	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatPktRecvBytes);
858	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatTransmit);
859	PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReceive);
860	#endif /* VBOX_WITH_STATISTICS */
861	}
862
863
864	/**
865	* Construct a TAP network transport driver instance.
866	*
867	* @copydoc FNPDMDRVCONSTRUCT
868	*/
869	static DECLCALLBACK(int) drvTAPConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
870	{
871	PDRVTAP pThis = PDMINS_2_DATA(pDrvIns, PDRVTAP);
872	PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
873
874	/*
875	* Init the static parts.
876	*/
877	pThis->pDrvIns = pDrvIns;
878	pThis->FileDevice = NIL_RTFILE;
879	pThis->pszDeviceName = NULL;
880	#ifdef RT_OS_SOLARIS
881	# ifdef VBOX_WITH_CROSSBOW
882	pThis->pDeviceHandle = NULL;
883	# else
884	pThis->IPFileDevice = NIL_RTFILE;
885	# endif
886	pThis->fStatic = true;
887	#endif
888	pThis->pszSetupApplication = NULL;
889	pThis->pszTerminateApplication = NULL;
890
891	/* IBase */
892	pDrvIns->IBase.pfnQueryInterface = drvTAPQueryInterface;
893	/* INetwork */
894	/** @todo implement the new INetworkUp interfaces. */
895	pThis->INetworkUp.pfnSendDeprecated = drvTAPSendDeprecated;
896	pThis->INetworkUp.pfnSetPromiscuousMode = drvTAPSetPromiscuousMode;
897	pThis->INetworkUp.pfnNotifyLinkChanged = drvTAPNotifyLinkChanged;
898
899	/*
900	* Validate the config.
901	*/
902	if (!CFGMR3AreValuesValid(pCfg, "Device\0InitProg\0TermProg\0FileHandle\0TAPSetupApplication\0TAPTerminateApplication\0MAC"))
903	return PDMDRV_SET_ERROR(pDrvIns, VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES, "");
904
905	/*
906	* Check that no-one is attached to us.
907	*/
908	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
909	("Configuration error: Not possible to attach anything to this driver!\n"),
910	VERR_PDM_DRVINS_NO_ATTACH);
911
912	/*
913	* Query the network port interface.
914	*/
915	pThis->pIAboveNet = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKDOWN);
916	if (!pThis->pIAboveNet)
917	return PDMDRV_SET_ERROR(pDrvIns, VERR_PDM_MISSING_INTERFACE_ABOVE,
918	N_("Configuration error: The above device/driver didn't export the network port interface"));
919
920	/*
921	* Read the configuration.
922	*/
923	int rc;
924	#if defined(RT_OS_SOLARIS) /** @todo Other platforms' TAP code should be moved here from ConsoleImpl & VBoxBFE. */
925	rc = CFGMR3QueryStringAlloc(pCfg, "TAPSetupApplication", &pThis->pszSetupApplication);
926	if (RT_SUCCESS(rc))
927	{
928	if (!RTPathExists(pThis->pszSetupApplication))
929	return PDMDrvHlpVMSetError(pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
930	N_("Invalid TAP setup program path: %s"), pThis->pszSetupApplication);
931	}
932	else if (rc != VERR_CFGM_VALUE_NOT_FOUND)
933	return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: failed to query \"TAPTerminateApplication\""));
934
935	rc = CFGMR3QueryStringAlloc(pCfg, "TAPTerminateApplication", &pThis->pszTerminateApplication);
936	if (RT_SUCCESS(rc))
937	{
938	if (!RTPathExists(pThis->pszTerminateApplication))
939	return PDMDrvHlpVMSetError(pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
940	N_("Invalid TAP terminate program path: %s"), pThis->pszTerminateApplication);
941	}
942	else if (rc != VERR_CFGM_VALUE_NOT_FOUND)
943	return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: failed to query \"TAPTerminateApplication\""));
944
945	# ifdef VBOX_WITH_CROSSBOW
946	rc = CFGMR3QueryBytes(pCfg, "MAC", &pThis->MacAddress, sizeof(pThis->MacAddress));
947	if (RT_FAILURE(rc))
948	return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to query \"MAC\""));
949	# endif
950
951	rc = CFGMR3QueryStringAlloc(pCfg, "Device", &pThis->pszDeviceName);
952	if (RT_FAILURE(rc))
953	pThis->fStatic = false;
954
955	/* Obtain the device name from the setup application (if none was specified). */
956	if (pThis->pszSetupApplication)
957	{
958	rc = drvTAPSetupApplication(pThis);
959	if (RT_FAILURE(rc))
960	return PDMDrvHlpVMSetError(pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
961	N_("Error running TAP setup application. rc=%d"), rc);
962	}
963
964	/*
965	* Do the setup.
966	*/
967	# ifdef VBOX_WITH_CROSSBOW
968	if (!VBoxLibDlpiFound())
969	{
970	return PDMDrvHlpVMSetError(pDrvIns, VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,
971	N_("Failed to load library %s required for host interface networking."), LIB_DLPI);
972	}
973	rc = SolarisOpenVNIC(pThis);
974	# else
975	rc = SolarisTAPAttach(pThis);
976	# endif
977	if (RT_FAILURE(rc))
978	return rc;
979
980	#else /* !RT_OS_SOLARIS */
981
982	int32_t iFile;
983	rc = CFGMR3QueryS32(pCfg, "FileHandle", &iFile);
984	if (RT_FAILURE(rc))
985	return PDMDRV_SET_ERROR(pDrvIns, rc,
986	N_("Configuration error: Query for \"FileHandle\" 32-bit signed integer failed"));
987	pThis->FileDevice = (RTFILE)iFile;
988	if (!RTFileIsValid(pThis->FileDevice))
989	return PDMDrvHlpVMSetError(pDrvIns, VERR_INVALID_HANDLE, RT_SRC_POS,
990	N_("The TAP file handle %RTfile is not valid"), pThis->FileDevice);
991	#endif /* !RT_OS_SOLARIS */
992
993	/*
994	* Make sure the descriptor is non-blocking and valid.
995	*
996	* We should actually query if it's a TAP device, but I haven't
997	* found any way to do that.
998	*/
999	if (fcntl(pThis->FileDevice, F_SETFL, O_NONBLOCK) == -1)
1000	return PDMDrvHlpVMSetError(pDrvIns, VERR_HOSTIF_IOCTL, RT_SRC_POS,
1001	N_("Configuration error: Failed to configure /dev/net/tun. errno=%d"), errno);
1002	/** @todo determine device name. This can be done by reading the link /proc/<pid>/fd/<fd> */
1003	Log(("drvTAPContruct: %d (from fd)\n", pThis->FileDevice));
1004	rc = VINF_SUCCESS;
1005
1006	/*
1007	* Create the control pipe.
1008	*/
1009	int fds[2];
1010	#ifdef RT_OS_L4
1011	/* XXX We need to tell the library which interface we are using */
1012	fds[0] = vboxrtLinuxFd2VBoxFd(VBOXRT_FT_TAP, 0);
1013	#endif
1014	if (pipe(&fds[0]) != 0) /** @todo RTPipeCreate() or something... */
1015	{
1016	rc = RTErrConvertFromErrno(errno);
1017	AssertRC(rc);
1018	return rc;
1019	}
1020	pThis->PipeRead = fds[0];
1021	pThis->PipeWrite = fds[1];
1022
1023	/*
1024	* Create the async I/O thread.
1025	*/
1026	rc = PDMDrvHlpPDMThreadCreate(pDrvIns, &pThis->pThread, pThis, drvTAPAsyncIoThread, drvTapAsyncIoWakeup, 128 * _1K, RTTHREADTYPE_IO, "TAP");
1027	AssertRCReturn(rc, rc);
1028
1029	#ifdef VBOX_WITH_STATISTICS
1030	/*
1031	* Statistics.
1032	*/
1033	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatPktSent, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of sent packets.", "/Drivers/TAP%d/Packets/Sent", pDrvIns->iInstance);
1034	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatPktSentBytes, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Number of sent bytes.", "/Drivers/TAP%d/Bytes/Sent", pDrvIns->iInstance);
1035	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatPktRecv, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of received packets.", "/Drivers/TAP%d/Packets/Received", pDrvIns->iInstance);
1036	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatPktRecvBytes, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Number of received bytes.", "/Drivers/TAP%d/Bytes/Received", pDrvIns->iInstance);
1037	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatTransmit, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling packet transmit runs.", "/Drivers/TAP%d/Transmit", pDrvIns->iInstance);
1038	PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatReceive, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling packet receive runs.", "/Drivers/TAP%d/Receive", pDrvIns->iInstance);
1039	#endif /* VBOX_WITH_STATISTICS */
1040
1041	return rc;
1042	}
1043
1044
1045	/**
1046	* TAP network transport driver registration record.
1047	*/
1048	const PDMDRVREG g_DrvHostInterface =
1049	{
1050	/* u32Version */
1051	PDM_DRVREG_VERSION,
1052	/* szName */
1053	"HostInterface",
1054	/* szRCMod */
1055	"",
1056	/* szR0Mod */
1057	"",
1058	/* pszDescription */
1059	"TAP Network Transport Driver",
1060	/* fFlags */
1061	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
1062	/* fClass. */
1063	PDM_DRVREG_CLASS_NETWORK,
1064	/* cMaxInstances */
1065	~0,
1066	/* cbInstance */
1067	sizeof(DRVTAP),
1068	/* pfnConstruct */
1069	drvTAPConstruct,
1070	/* pfnDestruct */
1071	drvTAPDestruct,
1072	/* pfnRelocate */
1073	NULL,
1074	/* pfnIOCtl */
1075	NULL,
1076	/* pfnPowerOn */
1077	NULL,
1078	/* pfnReset */
1079	NULL,
1080	/* pfnSuspend */
1081	NULL, /** @todo Do power on, suspend and resume handlers! */
1082	/* pfnResume */
1083	NULL,
1084	/* pfnAttach */
1085	NULL,
1086	/* pfnDetach */
1087	NULL,
1088	/* pfnPowerOff */
1089	NULL,
1090	/* pfnSoftReset */
1091	NULL,
1092	/* u32EndVersion */
1093	PDM_DRVREG_VERSION
1094	};
1095

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source: vbox/trunk/src/VBox/Devices/Network/DrvTAP.cpp@ 26989

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