VirtualBox

source: vbox/trunk/src/VBox/Devices/Network/DrvNetSniffer.cpp@ 56743

Last change on this file since 56743 was 56292, checked in by vboxsync, 10 years ago

Devices: Updated (C) year.
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1/* $Id: DrvNetSniffer.cpp 56292 2015-06-09 14:20:46Z vboxsync $ */
2/** @file
3 * DrvNetSniffer - Network sniffer filter driver.
4 */
5
6/*
7 * Copyright (C) 2006-2015 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18
19/*******************************************************************************
20* Header Files *
21*******************************************************************************/
22#define LOG_GROUP LOG_GROUP_DRV_NAT
23#include <VBox/vmm/pdmdrv.h>
24#include <VBox/vmm/pdmnetifs.h>
25
26#include <VBox/log.h>
27#include <iprt/assert.h>
28#include <iprt/critsect.h>
29#include <iprt/file.h>
30#include <iprt/process.h>
31#include <iprt/string.h>
32#include <iprt/time.h>
33#include <iprt/uuid.h>
34#include <VBox/param.h>
35
36#include "Pcap.h"
37#include "VBoxDD.h"
38
39
40/*******************************************************************************
41* Structures and Typedefs *
42*******************************************************************************/
43/**
44 * Block driver instance data.
45 *
46 * @implements PDMINETWORKUP
47 * @implements PDMINETWORKDOWN
48 * @implements PDMINETWORKCONFIG
49 */
50typedef struct DRVNETSNIFFER
51{
52 /** The network interface. */
53 PDMINETWORKUP INetworkUp;
54 /** The network interface. */
55 PDMINETWORKDOWN INetworkDown;
56 /** The network config interface.
57 * @todo this is a main interface and shouldn't be here... */
58 PDMINETWORKCONFIG INetworkConfig;
59 /** The port we're attached to. */
60 PPDMINETWORKDOWN pIAboveNet;
61 /** The config port interface we're attached to. */
62 PPDMINETWORKCONFIG pIAboveConfig;
63 /** The connector that's attached to us. */
64 PPDMINETWORKUP pIBelowNet;
65 /** The filename. */
66 char szFilename[RTPATH_MAX];
67 /** The filehandle. */
68 RTFILE hFile;
69 /** The lock serializing the file access. */
70 RTCRITSECT Lock;
71 /** The NanoTS delta we pass to the pcap writers. */
72 uint64_t StartNanoTS;
73 /** Pointer to the driver instance. */
74 PPDMDRVINS pDrvIns;
75 /** For when we're the leaf driver. */
76 RTCRITSECT XmitLock;
77
78} DRVNETSNIFFER, *PDRVNETSNIFFER;
79
80
81
82/**
83 * @interface_method_impl{PDMINETWORKUP,pfnBeginXmit}
84 */
85static DECLCALLBACK(int) drvNetSnifferUp_BeginXmit(PPDMINETWORKUP pInterface, bool fOnWorkerThread)
86{
87 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkUp);
88 if (RT_UNLIKELY(!pThis->pIBelowNet))
89 {
90 int rc = RTCritSectTryEnter(&pThis->XmitLock);
91 if (RT_UNLIKELY(rc == VERR_SEM_BUSY))
92 rc = VERR_TRY_AGAIN;
93 return rc;
94 }
95 return pThis->pIBelowNet->pfnBeginXmit(pThis->pIBelowNet, fOnWorkerThread);
96}
97
98
99/**
100 * @interface_method_impl{PDMINETWORKUP,pfnAllocBuf}
101 */
102static DECLCALLBACK(int) drvNetSnifferUp_AllocBuf(PPDMINETWORKUP pInterface, size_t cbMin,
103 PCPDMNETWORKGSO pGso, PPPDMSCATTERGATHER ppSgBuf)
104{
105 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkUp);
106 if (RT_UNLIKELY(!pThis->pIBelowNet))
107 return VERR_NET_DOWN;
108 return pThis->pIBelowNet->pfnAllocBuf(pThis->pIBelowNet, cbMin, pGso, ppSgBuf);
109}
110
111
112/**
113 * @interface_method_impl{PDMINETWORKUP,pfnFreeBuf}
114 */
115static DECLCALLBACK(int) drvNetSnifferUp_FreeBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf)
116{
117 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkUp);
118 if (RT_UNLIKELY(!pThis->pIBelowNet))
119 return VERR_NET_DOWN;
120 return pThis->pIBelowNet->pfnFreeBuf(pThis->pIBelowNet, pSgBuf);
121}
122
123
124/**
125 * @interface_method_impl{PDMINETWORKUP,pfnSendBuf}
126 */
127static DECLCALLBACK(int) drvNetSnifferUp_SendBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf, bool fOnWorkerThread)
128{
129 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkUp);
130 if (RT_UNLIKELY(!pThis->pIBelowNet))
131 return VERR_NET_DOWN;
132
133 /* output to sniffer */
134 RTCritSectEnter(&pThis->Lock);
135 if (!pSgBuf->pvUser)
136 PcapFileFrame(pThis->hFile, pThis->StartNanoTS,
137 pSgBuf->aSegs[0].pvSeg,
138 pSgBuf->cbUsed,
139 RT_MIN(pSgBuf->cbUsed, pSgBuf->aSegs[0].cbSeg));
140 else
141 PcapFileGsoFrame(pThis->hFile, pThis->StartNanoTS, (PCPDMNETWORKGSO)pSgBuf->pvUser,
142 pSgBuf->aSegs[0].pvSeg,
143 pSgBuf->cbUsed,
144 RT_MIN(pSgBuf->cbUsed, pSgBuf->aSegs[0].cbSeg));
145 RTCritSectLeave(&pThis->Lock);
146
147 return pThis->pIBelowNet->pfnSendBuf(pThis->pIBelowNet, pSgBuf, fOnWorkerThread);
148}
149
150
151/**
152 * @interface_method_impl{PDMINETWORKUP,pfnEndXmit}
153 */
154static DECLCALLBACK(void) drvNetSnifferUp_EndXmit(PPDMINETWORKUP pInterface)
155{
156 LogFlow(("drvNetSnifferUp_EndXmit:\n"));
157 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkUp);
158 if (RT_LIKELY(pThis->pIBelowNet))
159 pThis->pIBelowNet->pfnEndXmit(pThis->pIBelowNet);
160 else
161 RTCritSectLeave(&pThis->XmitLock);
162}
163
164
165/**
166 * @interface_method_impl{PDMINETWORKUP,pfnSetPromiscuousMode}
167 */
168static DECLCALLBACK(void) drvNetSnifferUp_SetPromiscuousMode(PPDMINETWORKUP pInterface, bool fPromiscuous)
169{
170 LogFlow(("drvNetSnifferUp_SetPromiscuousMode: fPromiscuous=%d\n", fPromiscuous));
171 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkUp);
172 if (pThis->pIBelowNet)
173 pThis->pIBelowNet->pfnSetPromiscuousMode(pThis->pIBelowNet, fPromiscuous);
174}
175
176
177/**
178 * @interface_method_impl{PDMINETWORKUP,pfnNotifyLinkChanged}
179 */
180static DECLCALLBACK(void) drvNetSnifferUp_NotifyLinkChanged(PPDMINETWORKUP pInterface, PDMNETWORKLINKSTATE enmLinkState)
181{
182 LogFlow(("drvNetSnifferUp_NotifyLinkChanged: enmLinkState=%d\n", enmLinkState));
183 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkUp);
184 if (pThis->pIBelowNet)
185 pThis->pIBelowNet->pfnNotifyLinkChanged(pThis->pIBelowNet, enmLinkState);
186}
187
188
189/**
190 * @interface_method_impl{PDMINETWORKDOWN,pfnWaitReceiveAvail}
191 */
192static DECLCALLBACK(int) drvNetSnifferDown_WaitReceiveAvail(PPDMINETWORKDOWN pInterface, RTMSINTERVAL cMillies)
193{
194 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkDown);
195 return pThis->pIAboveNet->pfnWaitReceiveAvail(pThis->pIAboveNet, cMillies);
196}
197
198
199/**
200 * @interface_method_impl{PDMINETWORKDOWN,pfnReceive}
201 */
202static DECLCALLBACK(int) drvNetSnifferDown_Receive(PPDMINETWORKDOWN pInterface, const void *pvBuf, size_t cb)
203{
204 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkDown);
205
206 /* output to sniffer */
207 RTCritSectEnter(&pThis->Lock);
208 PcapFileFrame(pThis->hFile, pThis->StartNanoTS, pvBuf, cb, cb);
209 RTCritSectLeave(&pThis->Lock);
210
211 /* pass up */
212 int rc = pThis->pIAboveNet->pfnReceive(pThis->pIAboveNet, pvBuf, cb);
213#if 0
214 RTCritSectEnter(&pThis->Lock);
215 u64TS = RTTimeProgramNanoTS();
216 Hdr.ts_sec = (uint32_t)(u64TS / 1000000000);
217 Hdr.ts_usec = (uint32_t)((u64TS / 1000) % 1000000);
218 Hdr.incl_len = 0;
219 RTFileWrite(pThis->hFile, &Hdr, sizeof(Hdr), NULL);
220 RTCritSectLeave(&pThis->Lock);
221#endif
222 return rc;
223}
224
225
226/**
227 * @interface_method_impl{PDMINETWORKDOWN,pfnXmitPending}
228 */
229static DECLCALLBACK(void) drvNetSnifferDown_XmitPending(PPDMINETWORKDOWN pInterface)
230{
231 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkDown);
232 pThis->pIAboveNet->pfnXmitPending(pThis->pIAboveNet);
233}
234
235
236/**
237 * Gets the current Media Access Control (MAC) address.
238 *
239 * @returns VBox status code.
240 * @param pInterface Pointer to the interface structure containing the called function pointer.
241 * @param pMac Where to store the MAC address.
242 * @thread EMT
243 */
244static DECLCALLBACK(int) drvNetSnifferDownCfg_GetMac(PPDMINETWORKCONFIG pInterface, PRTMAC pMac)
245{
246 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkConfig);
247 return pThis->pIAboveConfig->pfnGetMac(pThis->pIAboveConfig, pMac);
248}
249
250/**
251 * Gets the new link state.
252 *
253 * @returns The current link state.
254 * @param pInterface Pointer to the interface structure containing the called function pointer.
255 * @thread EMT
256 */
257static DECLCALLBACK(PDMNETWORKLINKSTATE) drvNetSnifferDownCfg_GetLinkState(PPDMINETWORKCONFIG pInterface)
258{
259 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkConfig);
260 return pThis->pIAboveConfig->pfnGetLinkState(pThis->pIAboveConfig);
261}
262
263/**
264 * Sets the new link state.
265 *
266 * @returns VBox status code.
267 * @param pInterface Pointer to the interface structure containing the called function pointer.
268 * @param enmState The new link state
269 * @thread EMT
270 */
271static DECLCALLBACK(int) drvNetSnifferDownCfg_SetLinkState(PPDMINETWORKCONFIG pInterface, PDMNETWORKLINKSTATE enmState)
272{
273 PDRVNETSNIFFER pThis = RT_FROM_MEMBER(pInterface, DRVNETSNIFFER, INetworkConfig);
274 return pThis->pIAboveConfig->pfnSetLinkState(pThis->pIAboveConfig, enmState);
275}
276
277
278/**
279 * @interface_method_impl{PDMIBASE,pfnQueryInterface}
280 */
281static DECLCALLBACK(void *) drvNetSnifferQueryInterface(PPDMIBASE pInterface, const char *pszIID)
282{
283 PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
284 PDRVNETSNIFFER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSNIFFER);
285 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
286 PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKUP, &pThis->INetworkUp);
287 PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKDOWN, &pThis->INetworkDown);
288 PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKCONFIG, &pThis->INetworkConfig);
289 return NULL;
290}
291
292
293/**
294 * @interface_method_impl{PDMDRVREG,pfnDetach}
295 */
296static DECLCALLBACK(void) drvNetSnifferDetach(PPDMDRVINS pDrvIns, uint32_t fFlags)
297{
298 PDRVNETSNIFFER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSNIFFER);
299
300 LogFlow(("drvNetSnifferDetach: pDrvIns: %p, fFlags: %u\n", pDrvIns, fFlags));
301 RTCritSectEnter(&pThis->XmitLock);
302 pThis->pIBelowNet = NULL;
303 RTCritSectLeave(&pThis->XmitLock);
304}
305
306
307/**
308 * @interface_method_impl{PDMDRVREG,pfnAttach}
309 */
310static DECLCALLBACK(int) drvNetSnifferAttach(PPDMDRVINS pDrvIns, uint32_t fFlags)
311{
312 PDRVNETSNIFFER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSNIFFER);
313 LogFlow(("drvNetSnifferAttach/#%#x: fFlags=%#x\n", pDrvIns->iInstance, fFlags));
314 RTCritSectEnter(&pThis->XmitLock);
315
316 /*
317 * Query the network connector interface.
318 */
319 PPDMIBASE pBaseDown;
320 int rc = PDMDrvHlpAttach(pDrvIns, fFlags, &pBaseDown);
321 if ( rc == VERR_PDM_NO_ATTACHED_DRIVER
322 || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME)
323 {
324 pThis->pIBelowNet = NULL;
325 rc = VINF_SUCCESS;
326 }
327 else if (RT_SUCCESS(rc))
328 {
329 pThis->pIBelowNet = PDMIBASE_QUERY_INTERFACE(pBaseDown, PDMINETWORKUP);
330 if (pThis->pIBelowNet)
331 rc = VINF_SUCCESS;
332 else
333 {
334 AssertMsgFailed(("Configuration error: the driver below didn't export the network connector interface!\n"));
335 rc = VERR_PDM_MISSING_INTERFACE_BELOW;
336 }
337 }
338 else
339 AssertMsgFailed(("Failed to attach to driver below! rc=%Rrc\n", rc));
340
341 RTCritSectLeave(&pThis->XmitLock);
342 return VINF_SUCCESS;
343}
344
345
346/**
347 * @interface_method_impl{PDMDRVREG,pfnDestruct}
348 */
349static DECLCALLBACK(void) drvNetSnifferDestruct(PPDMDRVINS pDrvIns)
350{
351 PDRVNETSNIFFER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSNIFFER);
352 PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
353
354 if (RTCritSectIsInitialized(&pThis->Lock))
355 RTCritSectDelete(&pThis->Lock);
356
357 if (RTCritSectIsInitialized(&pThis->XmitLock))
358 RTCritSectDelete(&pThis->XmitLock);
359
360 if (pThis->hFile != NIL_RTFILE)
361 {
362 RTFileClose(pThis->hFile);
363 pThis->hFile = NIL_RTFILE;
364 }
365}
366
367
368/**
369 * @interface_method_impl{Construct a NAT network transport driver instance,
370 * PDMDRVREG,pfnDestruct}
371 */
372static DECLCALLBACK(int) drvNetSnifferConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
373{
374 PDRVNETSNIFFER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSNIFFER);
375 LogFlow(("drvNetSnifferConstruct:\n"));
376 PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
377
378 /*
379 * Init the static parts.
380 */
381 pThis->pDrvIns = pDrvIns;
382 pThis->hFile = NIL_RTFILE;
383 /* The pcap file *must* start at time offset 0,0. */
384 pThis->StartNanoTS = RTTimeNanoTS() - RTTimeProgramNanoTS();
385 /* IBase */
386 pDrvIns->IBase.pfnQueryInterface = drvNetSnifferQueryInterface;
387 /* INetworkUp */
388 pThis->INetworkUp.pfnBeginXmit = drvNetSnifferUp_BeginXmit;
389 pThis->INetworkUp.pfnAllocBuf = drvNetSnifferUp_AllocBuf;
390 pThis->INetworkUp.pfnFreeBuf = drvNetSnifferUp_FreeBuf;
391 pThis->INetworkUp.pfnSendBuf = drvNetSnifferUp_SendBuf;
392 pThis->INetworkUp.pfnEndXmit = drvNetSnifferUp_EndXmit;
393 pThis->INetworkUp.pfnSetPromiscuousMode = drvNetSnifferUp_SetPromiscuousMode;
394 pThis->INetworkUp.pfnNotifyLinkChanged = drvNetSnifferUp_NotifyLinkChanged;
395 /* INetworkDown */
396 pThis->INetworkDown.pfnWaitReceiveAvail = drvNetSnifferDown_WaitReceiveAvail;
397 pThis->INetworkDown.pfnReceive = drvNetSnifferDown_Receive;
398 pThis->INetworkDown.pfnXmitPending = drvNetSnifferDown_XmitPending;
399 /* INetworkConfig */
400 pThis->INetworkConfig.pfnGetMac = drvNetSnifferDownCfg_GetMac;
401 pThis->INetworkConfig.pfnGetLinkState = drvNetSnifferDownCfg_GetLinkState;
402 pThis->INetworkConfig.pfnSetLinkState = drvNetSnifferDownCfg_SetLinkState;
403
404 /*
405 * Create the locks.
406 */
407 int rc = RTCritSectInit(&pThis->Lock);
408 AssertRCReturn(rc, rc);
409 rc = RTCritSectInit(&pThis->XmitLock);
410 AssertRCReturn(rc, rc);
411
412 /*
413 * Validate the config.
414 */
415 if (!CFGMR3AreValuesValid(pCfg, "File\0"))
416 return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;
417
418 if (CFGMR3GetFirstChild(pCfg))
419 LogRel(("NetSniffer: Found child config entries -- are you trying to redirect ports?\n"));
420
421 /*
422 * Get the filename.
423 */
424 rc = CFGMR3QueryString(pCfg, "File", pThis->szFilename, sizeof(pThis->szFilename));
425 if (rc == VERR_CFGM_VALUE_NOT_FOUND)
426 {
427 if (pDrvIns->iInstance > 0)
428 RTStrPrintf(pThis->szFilename, sizeof(pThis->szFilename), "./VBox-%x-%u.pcap", RTProcSelf(), pDrvIns->iInstance);
429 else
430 RTStrPrintf(pThis->szFilename, sizeof(pThis->szFilename), "./VBox-%x.pcap", RTProcSelf());
431 }
432
433 else if (RT_FAILURE(rc))
434 {
435 AssertMsgFailed(("Failed to query \"File\", rc=%Rrc.\n", rc));
436 return rc;
437 }
438
439 /*
440 * Query the network port interface.
441 */
442 pThis->pIAboveNet = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKDOWN);
443 if (!pThis->pIAboveNet)
444 {
445 AssertMsgFailed(("Configuration error: the above device/driver didn't export the network port interface!\n"));
446 return VERR_PDM_MISSING_INTERFACE_ABOVE;
447 }
448
449 /*
450 * Query the network config interface.
451 */
452 pThis->pIAboveConfig = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKCONFIG);
453 if (!pThis->pIAboveConfig)
454 {
455 AssertMsgFailed(("Configuration error: the above device/driver didn't export the network config interface!\n"));
456 return VERR_PDM_MISSING_INTERFACE_ABOVE;
457 }
458
459 /*
460 * Query the network connector interface.
461 */
462 PPDMIBASE pBaseDown;
463 rc = PDMDrvHlpAttach(pDrvIns, fFlags, &pBaseDown);
464 if ( rc == VERR_PDM_NO_ATTACHED_DRIVER
465 || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME)
466 pThis->pIBelowNet = NULL;
467 else if (RT_SUCCESS(rc))
468 {
469 pThis->pIBelowNet = PDMIBASE_QUERY_INTERFACE(pBaseDown, PDMINETWORKUP);
470 if (!pThis->pIBelowNet)
471 {
472 AssertMsgFailed(("Configuration error: the driver below didn't export the network connector interface!\n"));
473 return VERR_PDM_MISSING_INTERFACE_BELOW;
474 }
475 }
476 else
477 {
478 AssertMsgFailed(("Failed to attach to driver below! rc=%Rrc\n", rc));
479 return rc;
480 }
481
482 /*
483 * Open output file / pipe.
484 */
485 rc = RTFileOpen(&pThis->hFile, pThis->szFilename,
486 RTFILE_O_WRITE | RTFILE_O_CREATE_REPLACE | RTFILE_O_DENY_WRITE);
487 if (RT_FAILURE(rc))
488 return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
489 N_("Netsniffer cannot open '%s' for writing. The directory must exist and it must be writable for the current user"), pThis->szFilename);
490
491 /*
492 * Write pcap header.
493 * Some time has gone by since capturing pThis->StartNanoTS so get the
494 * current time again.
495 */
496 PcapFileHdr(pThis->hFile, RTTimeNanoTS());
497
498 return VINF_SUCCESS;
499}
500
501
502
503/**
504 * Network sniffer filter driver registration record.
505 */
506const PDMDRVREG g_DrvNetSniffer =
507{
508 /* u32Version */
509 PDM_DRVREG_VERSION,
510 /* szName */
511 "NetSniffer",
512 /* szRCMod */
513 "",
514 /* szR0Mod */
515 "",
516 /* pszDescription */
517 "Network Sniffer Filter Driver",
518 /* fFlags */
519 PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
520 /* fClass. */
521 PDM_DRVREG_CLASS_NETWORK,
522 /* cMaxInstances */
523 UINT32_MAX,
524 /* cbInstance */
525 sizeof(DRVNETSNIFFER),
526 /* pfnConstruct */
527 drvNetSnifferConstruct,
528 /* pfnDestruct */
529 drvNetSnifferDestruct,
530 /* pfnRelocate */
531 NULL,
532 /* pfnIOCtl */
533 NULL,
534 /* pfnPowerOn */
535 NULL,
536 /* pfnReset */
537 NULL,
538 /* pfnSuspend */
539 NULL,
540 /* pfnResume */
541 NULL,
542 /* pfnAttach */
543 drvNetSnifferAttach,
544 /* pfnDetach */
545 drvNetSnifferDetach,
546 /* pfnPowerOff */
547 NULL,
548 /* pfnSoftReset */
549 NULL,
550 /* u32EndVersion */
551 PDM_DRVREG_VERSION
552};
553
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