Sample Code

Windows Driver Samples/ Hyper-V Extensible Switch extension filter driver/ C++/ samples/ passthrough/ MsPassthroughExt.c/

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
/*++
 
Copyright (c) Microsoft Corporation. All Rights Reserved.
 
Module Name:
 
    MsPassthroughExt.c
 
Abstract:
 
    This file contains the implementation of a passthrough filter
    utilizing SxBase.lib.
 
 
--*/
 
#include "precomp.h"
 
UCHAR SxExtMajorNdisVersion = NDIS_FILTER_MAJOR_VERSION;
UCHAR SxExtMinorNdisVersion = NDIS_FILTER_MINOR_VERSION;
PWCHAR SxExtFriendlyName = L"Microsoft Sample Passthrough Extension";
PWCHAR SxExtUniqueName = L"{2A06F1CB-1B9B-43A8-ADF7-B7D44A9EE71C}";
PWCHAR SxExtServiceName = L"MsPassthroughExt";
ULONG SxExtAllocationTag = 'tPsM';
ULONG SxExtOidRequestId = 'tPsM';
 
 
NDIS_STATUS
SxExtInitialize()
{
    return NDIS_STATUS_SUCCESS;
}
 
 
VOID
SxExtUninitialize()
{
    return;
}
 
 
_Use_decl_annotations_
NDIS_STATUS
SxExtCreateSwitch(
    PSX_SWITCH_OBJECT Switch,
    PNDIS_HANDLE *ExtensionContext
    )
{
    UNREFERENCED_PARAMETER(Switch);
     
    *ExtensionContext = NULL;
    return NDIS_STATUS_SUCCESS;
}
 
 
_Use_decl_annotations_
VOID
SxExtDeleteSwitch(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
     
    return;
}
 
 
_Use_decl_annotations_
VOID
SxExtActivateSwitch(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
     
    return;
}
 
 
_Use_decl_annotations_
NDIS_STATUS
SxExtRestartSwitch(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
 
    return NDIS_STATUS_SUCCESS;
}
 
 
_Use_decl_annotations_
VOID
SxExtPauseSwitch(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
     
    return;
}
 
 
_Use_decl_annotations_
NDIS_STATUS
SxExtCreatePort(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_PORT_PARAMETERS Port
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(Port);
     
    return NDIS_STATUS_SUCCESS;
}
 
 
_Use_decl_annotations_
VOID
SxExtUpdatePort(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_PORT_PARAMETERS Port
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(Port);
     
    return;
}
 
 
_Use_decl_annotations_
NDIS_STATUS
SxExtCreateNic(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_NIC_PARAMETERS Nic
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(Nic);
     
    return NDIS_STATUS_SUCCESS;
}
 
 
_Use_decl_annotations_
VOID
SxExtConnectNic(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_NIC_PARAMETERS Nic
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(Nic);
     
    return;
}
 
 
_Use_decl_annotations_
VOID
SxExtUpdateNic(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_NIC_PARAMETERS Nic
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(Nic);
     
    return;
}
 
 
_Use_decl_annotations_
VOID
SxExtDisconnectNic(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_NIC_PARAMETERS Nic
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(Nic);
     
    return;
}
 
 
_Use_decl_annotations_
VOID
SxExtDeleteNic(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_NIC_PARAMETERS Nic
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(Nic);
     
    return;
}
 
 
_Use_decl_annotations_
VOID
SxExtTeardownPort(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_PORT_PARAMETERS Port
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(Port);
     
    return;
}
 
 
_Use_decl_annotations_
VOID
SxExtDeletePort( 
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_PORT_PARAMETERS Port
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(Port);
     
    return;
}
 
 
_Use_decl_annotations_
NDIS_STATUS
SxExtSaveNic( 
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_NIC_SAVE_STATE SaveState,
    PULONG BytesWritten,
    PULONG BytesNeeded
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(SaveState);
     
    *BytesWritten = 0;
    *BytesNeeded = 0;
    return NDIS_STATUS_SUCCESS;
}
 
 
_Use_decl_annotations_
VOID
SxExtSaveNicComplete( 
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_NIC_SAVE_STATE SaveState
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(SaveState);
     
    return;
}
 
 
_Use_decl_annotations_ 
NDIS_STATUS
SxExtNicRestore( 
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_NIC_SAVE_STATE SaveState,
    PULONG BytesRestored
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(SaveState);
     
    *BytesRestored = 0;
    return NDIS_STATUS_SUCCESS;
}
 
 
_Use_decl_annotations_
VOID
SxExtNicRestoreComplete( 
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_NIC_SAVE_STATE SaveState
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(SaveState);
     
    return;
}
 
 
_Use_decl_annotations_
NDIS_STATUS
SxExtAddSwitchProperty(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_PROPERTY_PARAMETERS SwitchProperty
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(SwitchProperty);
     
    return NDIS_STATUS_NOT_SUPPORTED;
}
 
 
_Use_decl_annotations_
NDIS_STATUS
SxExtUpdateSwitchProperty(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_PROPERTY_PARAMETERS SwitchProperty
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(SwitchProperty);
     
    return NDIS_STATUS_NOT_SUPPORTED;
}
 
 
_Use_decl_annotations_
BOOLEAN
SxExtDeleteSwitchProperty(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_PROPERTY_DELETE_PARAMETERS SwitchProperty
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(SwitchProperty);
     
    return FALSE;
}
 
 
_Use_decl_annotations_
NDIS_STATUS
SxExtAddPortProperty(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_PORT_PROPERTY_PARAMETERS PortProperty
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(PortProperty);
     
    return NDIS_STATUS_NOT_SUPPORTED;
}
 
 
_Use_decl_annotations_
NDIS_STATUS
SxExtUpdatePortProperty(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_PORT_PROPERTY_PARAMETERS PortProperty
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(PortProperty);
     
    return NDIS_STATUS_NOT_SUPPORTED;
}
 
 
_Use_decl_annotations_
BOOLEAN
SxExtDeletePortProperty(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_PORT_PROPERTY_DELETE_PARAMETERS PortProperty
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(PortProperty);
     
    return FALSE;
}
 
 
_Use_decl_annotations_
BOOLEAN
SxExtQuerySwitchFeatureStatus(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_FEATURE_STATUS_PARAMETERS SwitchFeatureStatus,
    PULONG BytesNeeded
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(SwitchFeatureStatus);
    UNREFERENCED_PARAMETER(BytesNeeded);
     
    return FALSE;
}
 
 
_Use_decl_annotations_
BOOLEAN
SxExtQueryPortFeatureStatus(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_SWITCH_PORT_FEATURE_STATUS_PARAMETERS PortFeatureStatus,
    PULONG BytesNeeded
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(PortFeatureStatus);
    UNREFERENCED_PARAMETER(BytesNeeded);
     
    return FALSE;
}
     
 
_Use_decl_annotations_
NDIS_STATUS
SxExtProcessNicRequest(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_OID_REQUEST OidRequest,
    PNDIS_SWITCH_PORT_ID SourcePortId,
    PNDIS_SWITCH_NIC_INDEX SourceNicIndex,
    PNDIS_SWITCH_PORT_ID DestinationPortId,
    PNDIS_SWITCH_NIC_INDEX DestinationNicIndex
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(OidRequest);
    UNREFERENCED_PARAMETER(SourcePortId);
    UNREFERENCED_PARAMETER(SourceNicIndex);
    UNREFERENCED_PARAMETER(DestinationPortId);
    UNREFERENCED_PARAMETER(DestinationNicIndex);
     
    return NDIS_STATUS_SUCCESS;
}
 
 
_Use_decl_annotations_
NDIS_STATUS
SxExtProcessNicRequestComplete(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_OID_REQUEST OidRequest,
    NDIS_SWITCH_PORT_ID SourcePortId,
    NDIS_SWITCH_NIC_INDEX SourceNicIndex,
    NDIS_SWITCH_PORT_ID DestinationPortId,
    NDIS_SWITCH_NIC_INDEX DestinationNicIndex,
    NDIS_STATUS Status
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(OidRequest);
    UNREFERENCED_PARAMETER(SourcePortId);
    UNREFERENCED_PARAMETER(SourceNicIndex);
    UNREFERENCED_PARAMETER(DestinationPortId);
    UNREFERENCED_PARAMETER(DestinationNicIndex);
    UNREFERENCED_PARAMETER(Status);
     
    return NDIS_STATUS_SUCCESS;
}
     
 
_Use_decl_annotations_
NDIS_STATUS
SxExtProcessNicStatus(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNDIS_STATUS_INDICATION StatusIndication,
    NDIS_SWITCH_PORT_ID SourcePortId,
    NDIS_SWITCH_NIC_INDEX SourceNicIndex
    )
{
    UNREFERENCED_PARAMETER(Switch);
    UNREFERENCED_PARAMETER(ExtensionContext);
    UNREFERENCED_PARAMETER(StatusIndication);
    UNREFERENCED_PARAMETER(SourcePortId);
    UNREFERENCED_PARAMETER(SourceNicIndex);
     
    return NDIS_STATUS_SUCCESS;
}
 
 
_Use_decl_annotations_
VOID
SxExtStartNetBufferListsIngress(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNET_BUFFER_LIST NetBufferLists,
    ULONG SendFlags
    )
{
    UNREFERENCED_PARAMETER(ExtensionContext);
     
    SxLibSendNetBufferListsIngress(Switch,
                                   NetBufferLists,
                                   SendFlags,
                                   0);
}
 
 
_Use_decl_annotations_
VOID
SxExtStartNetBufferListsEgress(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNET_BUFFER_LIST NetBufferLists,
    ULONG NumberOfNetBufferLists,
    ULONG ReceiveFlags
    )
{
    UNREFERENCED_PARAMETER(ExtensionContext);
     
    SxLibSendNetBufferListsEgress(Switch,
                                  NetBufferLists,
                                  NumberOfNetBufferLists,
                                  ReceiveFlags);
}
 
 
_Use_decl_annotations_
VOID
SxExtStartCompleteNetBufferListsEgress(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNET_BUFFER_LIST NetBufferLists,
    ULONG ReturnFlags
    )
{
    UNREFERENCED_PARAMETER(ExtensionContext);
     
    SxLibCompleteNetBufferListsEgress(Switch,
                                      NetBufferLists,
                                      ReturnFlags);
}
 
 
_Use_decl_annotations_
VOID
SxExtStartCompleteNetBufferListsIngress(
    PSX_SWITCH_OBJECT Switch,
    NDIS_HANDLE ExtensionContext,
    PNET_BUFFER_LIST NetBufferLists,
    ULONG SendCompleteFlags
    )
{
    UNREFERENCED_PARAMETER(ExtensionContext);
     
    SxLibCompleteNetBufferListsIngress(Switch,
                                       NetBufferLists,
                                       SendCompleteFlags);
}
    

Our Services

  • What our customers say about us?

    Read our customer testimonials to find out why our clients keep returning for their projects.

    View Testimonials

© 2011-2025 All Rights Reserved. Joya Systems. 4425 South Mopac Building II Suite 101 Austin, TX 78735 Tel: 800-DEV-KERNEL

Privacy Policy. Terms of use. Valid XHTML & CSS