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fceaf24a HJ |
1 | /* |
2 | * | |
3 | * Copyright (c) 2009, Microsoft Corporation. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms and conditions of the GNU General Public License, | |
7 | * version 2, as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple | |
16 | * Place - Suite 330, Boston, MA 02111-1307 USA. | |
17 | * | |
18 | * Authors: | |
19 | * Haiyang Zhang <haiyangz@microsoft.com> | |
20 | * Hank Janssen <hjanssen@microsoft.com> | |
21 | * | |
22 | */ | |
23 | ||
24 | ||
25 | #include "logging.h" | |
26 | ||
27 | #include "NetVscApi.h" | |
28 | #include "RndisFilter.h" | |
29 | ||
30 | // | |
31 | // Data types | |
32 | // | |
33 | ||
34 | typedef struct _RNDIS_FILTER_DRIVER_OBJECT { | |
35 | // The original driver | |
36 | NETVSC_DRIVER_OBJECT InnerDriver; | |
37 | ||
38 | } RNDIS_FILTER_DRIVER_OBJECT; | |
39 | ||
40 | typedef enum { | |
41 | RNDIS_DEV_UNINITIALIZED = 0, | |
42 | RNDIS_DEV_INITIALIZING, | |
43 | RNDIS_DEV_INITIALIZED, | |
44 | RNDIS_DEV_DATAINITIALIZED, | |
45 | } RNDIS_DEVICE_STATE; | |
46 | ||
47 | typedef struct _RNDIS_DEVICE { | |
48 | NETVSC_DEVICE *NetDevice; | |
49 | ||
50 | RNDIS_DEVICE_STATE State; | |
51 | UINT32 LinkStatus; | |
52 | UINT32 NewRequestId; | |
53 | ||
54 | HANDLE RequestLock; | |
55 | LIST_ENTRY RequestList; | |
56 | ||
57 | UCHAR HwMacAddr[HW_MACADDR_LEN]; | |
58 | } RNDIS_DEVICE; | |
59 | ||
60 | ||
61 | typedef struct _RNDIS_REQUEST { | |
62 | LIST_ENTRY ListEntry; | |
63 | HANDLE WaitEvent; | |
64 | ||
65 | // FIXME: We assumed a fixed size response here. If we do ever need to handle a bigger response, | |
66 | // we can either define a max response message or add a response buffer variable above this field | |
67 | RNDIS_MESSAGE ResponseMessage; | |
68 | ||
69 | // Simplify allocation by having a netvsc packet inline | |
70 | NETVSC_PACKET Packet; | |
71 | PAGE_BUFFER Buffer; | |
72 | // FIXME: We assumed a fixed size request here. | |
73 | RNDIS_MESSAGE RequestMessage; | |
74 | } RNDIS_REQUEST; | |
75 | ||
76 | ||
77 | typedef struct _RNDIS_FILTER_PACKET { | |
78 | void *CompletionContext; | |
79 | PFN_ON_SENDRECVCOMPLETION OnCompletion; | |
80 | ||
81 | RNDIS_MESSAGE Message; | |
82 | } RNDIS_FILTER_PACKET; | |
83 | ||
84 | // | |
85 | // Internal routines | |
86 | // | |
87 | static int | |
88 | RndisFilterSendRequest( | |
89 | RNDIS_DEVICE *Device, | |
90 | RNDIS_REQUEST *Request | |
91 | ); | |
92 | ||
93 | static void | |
94 | RndisFilterReceiveResponse( | |
95 | RNDIS_DEVICE *Device, | |
96 | RNDIS_MESSAGE *Response | |
97 | ); | |
98 | ||
99 | static void | |
100 | RndisFilterReceiveIndicateStatus( | |
101 | RNDIS_DEVICE *Device, | |
102 | RNDIS_MESSAGE *Response | |
103 | ); | |
104 | ||
105 | static void | |
106 | RndisFilterReceiveData( | |
107 | RNDIS_DEVICE *Device, | |
108 | RNDIS_MESSAGE *Message, | |
109 | NETVSC_PACKET *Packet | |
110 | ); | |
111 | ||
112 | static int | |
113 | RndisFilterOnReceive( | |
114 | DEVICE_OBJECT *Device, | |
115 | NETVSC_PACKET *Packet | |
116 | ); | |
117 | ||
118 | static int | |
119 | RndisFilterQueryDevice( | |
120 | RNDIS_DEVICE *Device, | |
121 | UINT32 Oid, | |
122 | VOID *Result, | |
123 | UINT32 *ResultSize | |
124 | ); | |
125 | ||
126 | static inline int | |
127 | RndisFilterQueryDeviceMac( | |
128 | RNDIS_DEVICE *Device | |
129 | ); | |
130 | ||
131 | static inline int | |
132 | RndisFilterQueryDeviceLinkStatus( | |
133 | RNDIS_DEVICE *Device | |
134 | ); | |
135 | ||
136 | static int | |
137 | RndisFilterSetPacketFilter( | |
138 | RNDIS_DEVICE *Device, | |
139 | UINT32 NewFilter | |
140 | ); | |
141 | ||
142 | static int | |
143 | RndisFilterInitDevice( | |
144 | RNDIS_DEVICE *Device | |
145 | ); | |
146 | ||
147 | static int | |
148 | RndisFilterOpenDevice( | |
149 | RNDIS_DEVICE *Device | |
150 | ); | |
151 | ||
152 | static int | |
153 | RndisFilterCloseDevice( | |
154 | RNDIS_DEVICE *Device | |
155 | ); | |
156 | ||
157 | static int | |
158 | RndisFilterOnDeviceAdd( | |
159 | DEVICE_OBJECT *Device, | |
160 | void *AdditionalInfo | |
161 | ); | |
162 | ||
163 | static int | |
164 | RndisFilterOnDeviceRemove( | |
165 | DEVICE_OBJECT *Device | |
166 | ); | |
167 | ||
168 | static void | |
169 | RndisFilterOnCleanup( | |
170 | DRIVER_OBJECT *Driver | |
171 | ); | |
172 | ||
173 | static int | |
174 | RndisFilterOnOpen( | |
175 | DEVICE_OBJECT *Device | |
176 | ); | |
177 | ||
178 | static int | |
179 | RndisFilterOnClose( | |
180 | DEVICE_OBJECT *Device | |
181 | ); | |
182 | ||
183 | static int | |
184 | RndisFilterOnSend( | |
185 | DEVICE_OBJECT *Device, | |
186 | NETVSC_PACKET *Packet | |
187 | ); | |
188 | ||
189 | static void | |
190 | RndisFilterOnSendCompletion( | |
191 | void *Context | |
192 | ); | |
193 | ||
194 | static void | |
195 | RndisFilterOnSendRequestCompletion( | |
196 | void *Context | |
197 | ); | |
198 | ||
199 | // | |
200 | // Global var | |
201 | // | |
202 | ||
203 | // The one and only | |
204 | RNDIS_FILTER_DRIVER_OBJECT gRndisFilter; | |
205 | ||
206 | static inline RNDIS_DEVICE* GetRndisDevice(void) | |
207 | { | |
208 | RNDIS_DEVICE *device; | |
209 | ||
210 | device = MemAllocZeroed(sizeof(RNDIS_DEVICE)); | |
211 | if (!device) | |
212 | { | |
213 | return NULL; | |
214 | } | |
215 | ||
216 | device->RequestLock = SpinlockCreate(); | |
217 | if (!device->RequestLock) | |
218 | { | |
219 | MemFree(device); | |
220 | return NULL; | |
221 | } | |
222 | ||
223 | INITIALIZE_LIST_HEAD(&device->RequestList); | |
224 | ||
225 | device->State = RNDIS_DEV_UNINITIALIZED; | |
226 | ||
227 | return device; | |
228 | } | |
229 | ||
230 | static inline void PutRndisDevice(RNDIS_DEVICE *Device) | |
231 | { | |
232 | SpinlockClose(Device->RequestLock); | |
233 | MemFree(Device); | |
234 | } | |
235 | ||
236 | static inline RNDIS_REQUEST* GetRndisRequest(RNDIS_DEVICE *Device, UINT32 MessageType, UINT32 MessageLength) | |
237 | { | |
238 | RNDIS_REQUEST *request; | |
239 | RNDIS_MESSAGE *rndisMessage; | |
240 | RNDIS_SET_REQUEST *set; | |
241 | ||
242 | request = MemAllocZeroed(sizeof(RNDIS_REQUEST)); | |
243 | if (!request) | |
244 | { | |
245 | return NULL; | |
246 | } | |
247 | ||
248 | request->WaitEvent = WaitEventCreate(); | |
249 | if (!request->WaitEvent) | |
250 | { | |
251 | MemFree(request); | |
252 | return NULL; | |
253 | } | |
254 | ||
255 | rndisMessage = &request->RequestMessage; | |
256 | rndisMessage->NdisMessageType = MessageType; | |
257 | rndisMessage->MessageLength = MessageLength; | |
258 | ||
259 | // Set the request id. This field is always after the rndis header for request/response packet types so | |
260 | // we just used the SetRequest as a template | |
261 | set = &rndisMessage->Message.SetRequest; | |
262 | set->RequestId = InterlockedIncrement((int*)&Device->NewRequestId); | |
263 | ||
264 | // Add to the request list | |
265 | SpinlockAcquire(Device->RequestLock); | |
266 | INSERT_TAIL_LIST(&Device->RequestList, &request->ListEntry); | |
267 | SpinlockRelease(Device->RequestLock); | |
268 | ||
269 | return request; | |
270 | } | |
271 | ||
272 | static inline void PutRndisRequest(RNDIS_DEVICE *Device, RNDIS_REQUEST *Request) | |
273 | { | |
274 | SpinlockAcquire(Device->RequestLock); | |
275 | REMOVE_ENTRY_LIST(&Request->ListEntry); | |
276 | SpinlockRelease(Device->RequestLock); | |
277 | ||
278 | WaitEventClose(Request->WaitEvent); | |
279 | MemFree(Request); | |
280 | } | |
281 | ||
282 | static inline void DumpRndisMessage(RNDIS_MESSAGE *RndisMessage) | |
283 | { | |
284 | switch (RndisMessage->NdisMessageType) | |
285 | { | |
286 | case REMOTE_NDIS_PACKET_MSG: | |
287 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_PACKET_MSG (len %u, data offset %u data len %u, # oob %u, oob offset %u, oob len %u, pkt offset %u, pkt len %u", | |
288 | RndisMessage->MessageLength, | |
289 | RndisMessage->Message.Packet.DataOffset, | |
290 | RndisMessage->Message.Packet.DataLength, | |
291 | RndisMessage->Message.Packet.NumOOBDataElements, | |
292 | RndisMessage->Message.Packet.OOBDataOffset, | |
293 | RndisMessage->Message.Packet.OOBDataLength, | |
294 | RndisMessage->Message.Packet.PerPacketInfoOffset, | |
295 | RndisMessage->Message.Packet.PerPacketInfoLength); | |
296 | break; | |
297 | ||
298 | case REMOTE_NDIS_INITIALIZE_CMPLT: | |
299 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_INITIALIZE_CMPLT (len %u, id 0x%x, status 0x%x, major %d, minor %d, device flags %d, max xfer size 0x%x, max pkts %u, pkt aligned %u)", | |
300 | RndisMessage->MessageLength, | |
301 | RndisMessage->Message.InitializeComplete.RequestId, | |
302 | RndisMessage->Message.InitializeComplete.Status, | |
303 | RndisMessage->Message.InitializeComplete.MajorVersion, | |
304 | RndisMessage->Message.InitializeComplete.MinorVersion, | |
305 | RndisMessage->Message.InitializeComplete.DeviceFlags, | |
306 | RndisMessage->Message.InitializeComplete.MaxTransferSize, | |
307 | RndisMessage->Message.InitializeComplete.MaxPacketsPerMessage, | |
308 | RndisMessage->Message.InitializeComplete.PacketAlignmentFactor); | |
309 | break; | |
310 | ||
311 | case REMOTE_NDIS_QUERY_CMPLT: | |
312 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_QUERY_CMPLT (len %u, id 0x%x, status 0x%x, buf len %u, buf offset %u)", | |
313 | RndisMessage->MessageLength, | |
314 | RndisMessage->Message.QueryComplete.RequestId, | |
315 | RndisMessage->Message.QueryComplete.Status, | |
316 | RndisMessage->Message.QueryComplete.InformationBufferLength, | |
317 | RndisMessage->Message.QueryComplete.InformationBufferOffset); | |
318 | break; | |
319 | ||
320 | case REMOTE_NDIS_SET_CMPLT: | |
321 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_SET_CMPLT (len %u, id 0x%x, status 0x%x)", | |
322 | RndisMessage->MessageLength, | |
323 | RndisMessage->Message.SetComplete.RequestId, | |
324 | RndisMessage->Message.SetComplete.Status); | |
325 | break; | |
326 | ||
327 | case REMOTE_NDIS_INDICATE_STATUS_MSG: | |
328 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_INDICATE_STATUS_MSG (len %u, status 0x%x, buf len %u, buf offset %u)", | |
329 | RndisMessage->MessageLength, | |
330 | RndisMessage->Message.IndicateStatus.Status, | |
331 | RndisMessage->Message.IndicateStatus.StatusBufferLength, | |
332 | RndisMessage->Message.IndicateStatus.StatusBufferOffset); | |
333 | break; | |
334 | ||
335 | default: | |
336 | DPRINT_DBG(NETVSC, "0x%x (len %u)", | |
337 | RndisMessage->NdisMessageType, | |
338 | RndisMessage->MessageLength); | |
339 | break; | |
340 | } | |
341 | } | |
342 | ||
343 | static int | |
344 | RndisFilterSendRequest( | |
345 | RNDIS_DEVICE *Device, | |
346 | RNDIS_REQUEST *Request | |
347 | ) | |
348 | { | |
349 | int ret=0; | |
350 | NETVSC_PACKET *packet; | |
351 | ||
352 | DPRINT_ENTER(NETVSC); | |
353 | ||
354 | // Setup the packet to send it | |
355 | packet = &Request->Packet; | |
356 | ||
357 | packet->IsDataPacket = FALSE; | |
358 | packet->TotalDataBufferLength = Request->RequestMessage.MessageLength; | |
359 | packet->PageBufferCount = 1; | |
360 | ||
361 | packet->PageBuffers[0].Pfn = GetPhysicalAddress(&Request->RequestMessage) >> PAGE_SHIFT; | |
362 | packet->PageBuffers[0].Length = Request->RequestMessage.MessageLength; | |
363 | packet->PageBuffers[0].Offset = (ULONG_PTR)&Request->RequestMessage & (PAGE_SIZE -1); | |
364 | ||
365 | packet->Completion.Send.SendCompletionContext = Request;//packet; | |
366 | packet->Completion.Send.OnSendCompletion = RndisFilterOnSendRequestCompletion; | |
367 | packet->Completion.Send.SendCompletionTid = (ULONG_PTR)Device; | |
368 | ||
369 | ret = gRndisFilter.InnerDriver.OnSend(Device->NetDevice->Device, packet); | |
370 | DPRINT_EXIT(NETVSC); | |
371 | return ret; | |
372 | } | |
373 | ||
374 | ||
375 | static void | |
376 | RndisFilterReceiveResponse( | |
377 | RNDIS_DEVICE *Device, | |
378 | RNDIS_MESSAGE *Response | |
379 | ) | |
380 | { | |
381 | LIST_ENTRY *anchor; | |
382 | LIST_ENTRY *curr; | |
383 | RNDIS_REQUEST *request=NULL; | |
384 | BOOL found=FALSE; | |
385 | ||
386 | DPRINT_ENTER(NETVSC); | |
387 | ||
388 | SpinlockAcquire(Device->RequestLock); | |
389 | ITERATE_LIST_ENTRIES(anchor, curr, &Device->RequestList) | |
390 | { | |
391 | request = CONTAINING_RECORD(curr, RNDIS_REQUEST, ListEntry); | |
392 | ||
393 | // All request/response message contains RequestId as the 1st field | |
394 | if (request->RequestMessage.Message.InitializeRequest.RequestId == Response->Message.InitializeComplete.RequestId) | |
395 | { | |
396 | DPRINT_DBG(NETVSC, "found rndis request for this response (id 0x%x req type 0x%x res type 0x%x)", | |
397 | request->RequestMessage.Message.InitializeRequest.RequestId, request->RequestMessage.NdisMessageType, Response->NdisMessageType); | |
398 | ||
399 | found = TRUE; | |
400 | break; | |
401 | } | |
402 | } | |
403 | SpinlockRelease(Device->RequestLock); | |
404 | ||
405 | if (found) | |
406 | { | |
407 | if (Response->MessageLength <= sizeof(RNDIS_MESSAGE)) | |
408 | { | |
409 | memcpy(&request->ResponseMessage, Response, Response->MessageLength); | |
410 | } | |
411 | else | |
412 | { | |
413 | DPRINT_ERR(NETVSC, "rndis response buffer overflow detected (size %u max %u)", Response->MessageLength, sizeof(RNDIS_FILTER_PACKET)); | |
414 | ||
415 | if (Response->NdisMessageType == REMOTE_NDIS_RESET_CMPLT) // does not have a request id field | |
416 | { | |
417 | request->ResponseMessage.Message.ResetComplete.Status = STATUS_BUFFER_OVERFLOW; | |
418 | } | |
419 | else | |
420 | { | |
421 | request->ResponseMessage.Message.InitializeComplete.Status = STATUS_BUFFER_OVERFLOW; | |
422 | } | |
423 | } | |
424 | ||
425 | WaitEventSet(request->WaitEvent); | |
426 | } | |
427 | else | |
428 | { | |
429 | DPRINT_ERR(NETVSC, "no rndis request found for this response (id 0x%x res type 0x%x)", | |
430 | Response->Message.InitializeComplete.RequestId, Response->NdisMessageType); | |
431 | } | |
432 | ||
433 | DPRINT_EXIT(NETVSC); | |
434 | } | |
435 | ||
436 | static void | |
437 | RndisFilterReceiveIndicateStatus( | |
438 | RNDIS_DEVICE *Device, | |
439 | RNDIS_MESSAGE *Response | |
440 | ) | |
441 | { | |
442 | RNDIS_INDICATE_STATUS *indicate = &Response->Message.IndicateStatus; | |
443 | ||
444 | if (indicate->Status == RNDIS_STATUS_MEDIA_CONNECT) | |
445 | { | |
446 | gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 1); | |
447 | } | |
448 | else if (indicate->Status == RNDIS_STATUS_MEDIA_DISCONNECT) | |
449 | { | |
450 | gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 0); | |
451 | } | |
452 | else | |
453 | { | |
454 | // TODO: | |
455 | } | |
456 | } | |
457 | ||
458 | static void | |
459 | RndisFilterReceiveData( | |
460 | RNDIS_DEVICE *Device, | |
461 | RNDIS_MESSAGE *Message, | |
462 | NETVSC_PACKET *Packet | |
463 | ) | |
464 | { | |
465 | RNDIS_PACKET *rndisPacket; | |
466 | UINT32 dataOffset; | |
467 | ||
468 | DPRINT_ENTER(NETVSC); | |
469 | ||
470 | // empty ethernet frame ?? | |
471 | ASSERT(Packet->PageBuffers[0].Length > RNDIS_MESSAGE_SIZE(RNDIS_PACKET)); | |
472 | ||
473 | rndisPacket = &Message->Message.Packet; | |
474 | ||
475 | // FIXME: Handle multiple rndis pkt msgs that maybe enclosed in this | |
476 | // netvsc packet (ie TotalDataBufferLength != MessageLength) | |
477 | ||
478 | // Remove the rndis header and pass it back up the stack | |
479 | dataOffset = RNDIS_HEADER_SIZE + rndisPacket->DataOffset; | |
480 | ||
481 | Packet->TotalDataBufferLength -= dataOffset; | |
482 | Packet->PageBuffers[0].Offset += dataOffset; | |
483 | Packet->PageBuffers[0].Length -= dataOffset; | |
484 | ||
485 | Packet->IsDataPacket = TRUE; | |
486 | ||
487 | gRndisFilter.InnerDriver.OnReceiveCallback(Device->NetDevice->Device, Packet); | |
488 | ||
489 | DPRINT_EXIT(NETVSC); | |
490 | } | |
491 | ||
492 | static int | |
493 | RndisFilterOnReceive( | |
494 | DEVICE_OBJECT *Device, | |
495 | NETVSC_PACKET *Packet | |
496 | ) | |
497 | { | |
498 | NETVSC_DEVICE *netDevice = (NETVSC_DEVICE*)Device->Extension; | |
499 | RNDIS_DEVICE *rndisDevice; | |
500 | RNDIS_MESSAGE rndisMessage; | |
501 | RNDIS_MESSAGE *rndisHeader; | |
502 | ||
503 | DPRINT_ENTER(NETVSC); | |
504 | ||
505 | ASSERT(netDevice); | |
506 | //Make sure the rndis device state is initialized | |
507 | if (!netDevice->Extension) | |
508 | { | |
509 | DPRINT_ERR(NETVSC, "got rndis message but no rndis device...dropping this message!"); | |
510 | DPRINT_EXIT(NETVSC); | |
511 | return -1; | |
512 | } | |
513 | ||
514 | rndisDevice = (RNDIS_DEVICE*)netDevice->Extension; | |
515 | if (rndisDevice->State == RNDIS_DEV_UNINITIALIZED) | |
516 | { | |
517 | DPRINT_ERR(NETVSC, "got rndis message but rndis device uninitialized...dropping this message!"); | |
518 | DPRINT_EXIT(NETVSC); | |
519 | return -1; | |
520 | } | |
521 | ||
522 | rndisHeader = (RNDIS_MESSAGE*)PageMapVirtualAddress(Packet->PageBuffers[0].Pfn); | |
523 | ||
524 | rndisHeader = (void*)((ULONG_PTR)rndisHeader + Packet->PageBuffers[0].Offset); | |
525 | ||
526 | // Make sure we got a valid rndis message | |
527 | // FIXME: There seems to be a bug in set completion msg where its MessageLength is 16 bytes but | |
528 | // the ByteCount field in the xfer page range shows 52 bytes | |
529 | #if 0 | |
530 | if ( Packet->TotalDataBufferLength != rndisHeader->MessageLength ) | |
531 | { | |
532 | PageUnmapVirtualAddress((void*)(ULONG_PTR)rndisHeader - Packet->PageBuffers[0].Offset); | |
533 | ||
534 | DPRINT_ERR(NETVSC, "invalid rndis message? (expected %u bytes got %u)...dropping this message!", | |
535 | rndisHeader->MessageLength, Packet->TotalDataBufferLength); | |
536 | DPRINT_EXIT(NETVSC); | |
537 | return -1; | |
538 | } | |
539 | #endif | |
540 | ||
541 | if ((rndisHeader->NdisMessageType != REMOTE_NDIS_PACKET_MSG) && (rndisHeader->MessageLength > sizeof(RNDIS_MESSAGE))) | |
542 | { | |
543 | DPRINT_ERR(NETVSC, "incoming rndis message buffer overflow detected (got %u, max %u)...marking it an error!", | |
544 | rndisHeader->MessageLength, sizeof(RNDIS_MESSAGE)); | |
545 | } | |
546 | ||
547 | memcpy(&rndisMessage, rndisHeader, (rndisHeader->MessageLength > sizeof(RNDIS_MESSAGE))?sizeof(RNDIS_MESSAGE):rndisHeader->MessageLength); | |
548 | ||
549 | PageUnmapVirtualAddress((void*)(ULONG_PTR)rndisHeader - Packet->PageBuffers[0].Offset); | |
550 | ||
551 | DumpRndisMessage(&rndisMessage); | |
552 | ||
553 | switch (rndisMessage.NdisMessageType) | |
554 | { | |
555 | // data msg | |
556 | case REMOTE_NDIS_PACKET_MSG: | |
557 | RndisFilterReceiveData(rndisDevice, &rndisMessage, Packet); | |
558 | break; | |
559 | ||
560 | // completion msgs | |
561 | case REMOTE_NDIS_INITIALIZE_CMPLT: | |
562 | case REMOTE_NDIS_QUERY_CMPLT: | |
563 | case REMOTE_NDIS_SET_CMPLT: | |
564 | //case REMOTE_NDIS_RESET_CMPLT: | |
565 | //case REMOTE_NDIS_KEEPALIVE_CMPLT: | |
566 | RndisFilterReceiveResponse(rndisDevice, &rndisMessage); | |
567 | break; | |
568 | ||
569 | // notification msgs | |
570 | case REMOTE_NDIS_INDICATE_STATUS_MSG: | |
571 | RndisFilterReceiveIndicateStatus(rndisDevice, &rndisMessage); | |
572 | break; | |
573 | default: | |
574 | DPRINT_ERR(NETVSC, "unhandled rndis message (type %u len %u)", rndisMessage.NdisMessageType, rndisMessage.MessageLength); | |
575 | break; | |
576 | } | |
577 | ||
578 | DPRINT_EXIT(NETVSC); | |
579 | return 0; | |
580 | } | |
581 | ||
582 | ||
583 | static int | |
584 | RndisFilterQueryDevice( | |
585 | RNDIS_DEVICE *Device, | |
586 | UINT32 Oid, | |
587 | VOID *Result, | |
588 | UINT32 *ResultSize | |
589 | ) | |
590 | { | |
591 | RNDIS_REQUEST *request; | |
592 | UINT32 inresultSize = *ResultSize; | |
593 | RNDIS_QUERY_REQUEST *query; | |
594 | RNDIS_QUERY_COMPLETE *queryComplete; | |
595 | int ret=0; | |
596 | ||
597 | DPRINT_ENTER(NETVSC); | |
598 | ||
599 | ASSERT(Result); | |
600 | ||
601 | *ResultSize = 0; | |
602 | request = GetRndisRequest(Device, REMOTE_NDIS_QUERY_MSG, RNDIS_MESSAGE_SIZE(RNDIS_QUERY_REQUEST)); | |
603 | if (!request) | |
604 | { | |
605 | ret = -1; | |
606 | goto Cleanup; | |
607 | } | |
608 | ||
609 | // Setup the rndis query | |
610 | query = &request->RequestMessage.Message.QueryRequest; | |
611 | query->Oid = Oid; | |
612 | query->InformationBufferOffset = sizeof(RNDIS_QUERY_REQUEST); | |
613 | query->InformationBufferLength = 0; | |
614 | query->DeviceVcHandle = 0; | |
615 | ||
616 | ret = RndisFilterSendRequest(Device, request); | |
617 | if (ret != 0) | |
618 | { | |
619 | goto Cleanup; | |
620 | } | |
621 | ||
622 | WaitEventWait(request->WaitEvent); | |
623 | ||
624 | // Copy the response back | |
625 | queryComplete = &request->ResponseMessage.Message.QueryComplete; | |
626 | ||
627 | if (queryComplete->InformationBufferLength > inresultSize) | |
628 | { | |
629 | ret = -1; | |
630 | goto Cleanup; | |
631 | } | |
632 | ||
633 | memcpy(Result, | |
634 | (void*)((ULONG_PTR)queryComplete + queryComplete->InformationBufferOffset), | |
635 | queryComplete->InformationBufferLength); | |
636 | ||
637 | *ResultSize = queryComplete->InformationBufferLength; | |
638 | ||
639 | Cleanup: | |
640 | if (request) | |
641 | { | |
642 | PutRndisRequest(Device, request); | |
643 | } | |
644 | DPRINT_EXIT(NETVSC); | |
645 | ||
646 | return ret; | |
647 | } | |
648 | ||
649 | static inline int | |
650 | RndisFilterQueryDeviceMac( | |
651 | RNDIS_DEVICE *Device | |
652 | ) | |
653 | { | |
654 | UINT32 size=HW_MACADDR_LEN; | |
655 | ||
656 | return RndisFilterQueryDevice(Device, | |
657 | RNDIS_OID_802_3_PERMANENT_ADDRESS, | |
658 | Device->HwMacAddr, | |
659 | &size); | |
660 | } | |
661 | ||
662 | static inline int | |
663 | RndisFilterQueryDeviceLinkStatus( | |
664 | RNDIS_DEVICE *Device | |
665 | ) | |
666 | { | |
667 | UINT32 size=sizeof(UINT32); | |
668 | ||
669 | return RndisFilterQueryDevice(Device, | |
670 | RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, | |
671 | &Device->LinkStatus, | |
672 | &size); | |
673 | } | |
674 | ||
675 | static int | |
676 | RndisFilterSetPacketFilter( | |
677 | RNDIS_DEVICE *Device, | |
678 | UINT32 NewFilter | |
679 | ) | |
680 | { | |
681 | RNDIS_REQUEST *request; | |
682 | RNDIS_SET_REQUEST *set; | |
683 | RNDIS_SET_COMPLETE *setComplete; | |
684 | UINT32 status; | |
685 | int ret; | |
686 | ||
687 | DPRINT_ENTER(NETVSC); | |
688 | ||
689 | ASSERT(RNDIS_MESSAGE_SIZE(RNDIS_SET_REQUEST) + sizeof(UINT32) <= sizeof(RNDIS_MESSAGE)); | |
690 | ||
691 | request = GetRndisRequest(Device, REMOTE_NDIS_SET_MSG, RNDIS_MESSAGE_SIZE(RNDIS_SET_REQUEST) + sizeof(UINT32)); | |
692 | if (!request) | |
693 | { | |
694 | ret = -1; | |
695 | goto Cleanup; | |
696 | } | |
697 | ||
698 | // Setup the rndis set | |
699 | set = &request->RequestMessage.Message.SetRequest; | |
700 | set->Oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER; | |
701 | set->InformationBufferLength = sizeof(UINT32); | |
702 | set->InformationBufferOffset = sizeof(RNDIS_SET_REQUEST); | |
703 | ||
704 | memcpy((void*)(ULONG_PTR)set + sizeof(RNDIS_SET_REQUEST), &NewFilter, sizeof(UINT32)); | |
705 | ||
706 | ret = RndisFilterSendRequest(Device, request); | |
707 | if (ret != 0) | |
708 | { | |
709 | goto Cleanup; | |
710 | } | |
711 | ||
712 | ret = WaitEventWaitEx(request->WaitEvent, 2000/*2sec*/); | |
713 | if (!ret) | |
714 | { | |
715 | ret = -1; | |
716 | DPRINT_ERR(NETVSC, "timeout before we got a set response..."); | |
717 | // We cant deallocate the request since we may still receive a send completion for it. | |
718 | goto Exit; | |
719 | } | |
720 | else | |
721 | { | |
722 | if (ret > 0) | |
723 | { | |
724 | ret = 0; | |
725 | } | |
726 | setComplete = &request->ResponseMessage.Message.SetComplete; | |
727 | status = setComplete->Status; | |
728 | } | |
729 | ||
730 | Cleanup: | |
731 | if (request) | |
732 | { | |
733 | PutRndisRequest(Device, request); | |
734 | } | |
735 | Exit: | |
736 | DPRINT_EXIT(NETVSC); | |
737 | ||
738 | return ret; | |
739 | } | |
740 | ||
741 | int | |
742 | RndisFilterInit( | |
743 | NETVSC_DRIVER_OBJECT *Driver | |
744 | ) | |
745 | { | |
746 | DPRINT_ENTER(NETVSC); | |
747 | ||
748 | DPRINT_DBG(NETVSC, "sizeof(RNDIS_FILTER_PACKET) == %d", sizeof(RNDIS_FILTER_PACKET)); | |
749 | ||
750 | Driver->RequestExtSize = sizeof(RNDIS_FILTER_PACKET); | |
751 | Driver->AdditionalRequestPageBufferCount = 1; // For rndis header | |
752 | ||
753 | //Driver->Context = rndisDriver; | |
754 | ||
755 | memset(&gRndisFilter, 0, sizeof(RNDIS_FILTER_DRIVER_OBJECT)); | |
756 | ||
757 | /*rndisDriver->Driver = Driver; | |
758 | ||
759 | ASSERT(Driver->OnLinkStatusChanged); | |
760 | rndisDriver->OnLinkStatusChanged = Driver->OnLinkStatusChanged;*/ | |
761 | ||
762 | // Save the original dispatch handlers before we override it | |
763 | gRndisFilter.InnerDriver.Base.OnDeviceAdd = Driver->Base.OnDeviceAdd; | |
764 | gRndisFilter.InnerDriver.Base.OnDeviceRemove = Driver->Base.OnDeviceRemove; | |
765 | gRndisFilter.InnerDriver.Base.OnCleanup = Driver->Base.OnCleanup; | |
766 | ||
767 | ASSERT(Driver->OnSend); | |
768 | ASSERT(Driver->OnReceiveCallback); | |
769 | gRndisFilter.InnerDriver.OnSend = Driver->OnSend; | |
770 | gRndisFilter.InnerDriver.OnReceiveCallback = Driver->OnReceiveCallback; | |
771 | gRndisFilter.InnerDriver.OnLinkStatusChanged = Driver->OnLinkStatusChanged; | |
772 | ||
773 | // Override | |
774 | Driver->Base.OnDeviceAdd = RndisFilterOnDeviceAdd; | |
775 | Driver->Base.OnDeviceRemove = RndisFilterOnDeviceRemove; | |
776 | Driver->Base.OnCleanup = RndisFilterOnCleanup; | |
777 | Driver->OnSend = RndisFilterOnSend; | |
778 | Driver->OnOpen = RndisFilterOnOpen; | |
779 | Driver->OnClose = RndisFilterOnClose; | |
780 | //Driver->QueryLinkStatus = RndisFilterQueryDeviceLinkStatus; | |
781 | Driver->OnReceiveCallback = RndisFilterOnReceive; | |
782 | ||
783 | DPRINT_EXIT(NETVSC); | |
784 | ||
785 | return 0; | |
786 | } | |
787 | ||
788 | static int | |
789 | RndisFilterInitDevice( | |
790 | RNDIS_DEVICE *Device | |
791 | ) | |
792 | { | |
793 | RNDIS_REQUEST *request; | |
794 | RNDIS_INITIALIZE_REQUEST *init; | |
795 | RNDIS_INITIALIZE_COMPLETE *initComplete; | |
796 | UINT32 status; | |
797 | int ret; | |
798 | ||
799 | DPRINT_ENTER(NETVSC); | |
800 | ||
801 | request = GetRndisRequest(Device, REMOTE_NDIS_INITIALIZE_MSG, RNDIS_MESSAGE_SIZE(RNDIS_INITIALIZE_REQUEST)); | |
802 | if (!request) | |
803 | { | |
804 | ret = -1; | |
805 | goto Cleanup; | |
806 | } | |
807 | ||
808 | // Setup the rndis set | |
809 | init = &request->RequestMessage.Message.InitializeRequest; | |
810 | init->MajorVersion = RNDIS_MAJOR_VERSION; | |
811 | init->MinorVersion = RNDIS_MINOR_VERSION; | |
812 | init->MaxTransferSize = 2048; // FIXME: Use 1536 - rounded ethernet frame size | |
813 | ||
814 | Device->State = RNDIS_DEV_INITIALIZING; | |
815 | ||
816 | ret = RndisFilterSendRequest(Device, request); | |
817 | if (ret != 0) | |
818 | { | |
819 | Device->State = RNDIS_DEV_UNINITIALIZED; | |
820 | goto Cleanup; | |
821 | } | |
822 | ||
823 | WaitEventWait(request->WaitEvent); | |
824 | ||
825 | initComplete = &request->ResponseMessage.Message.InitializeComplete; | |
826 | status = initComplete->Status; | |
827 | if (status == RNDIS_STATUS_SUCCESS) | |
828 | { | |
829 | Device->State = RNDIS_DEV_INITIALIZED; | |
830 | ret = 0; | |
831 | } | |
832 | else | |
833 | { | |
834 | Device->State = RNDIS_DEV_UNINITIALIZED; | |
835 | ret = -1; | |
836 | } | |
837 | ||
838 | Cleanup: | |
839 | if (request) | |
840 | { | |
841 | PutRndisRequest(Device, request); | |
842 | } | |
843 | DPRINT_EXIT(NETVSC); | |
844 | ||
845 | return ret; | |
846 | } | |
847 | ||
848 | static void | |
849 | RndisFilterHaltDevice( | |
850 | RNDIS_DEVICE *Device | |
851 | ) | |
852 | { | |
853 | RNDIS_REQUEST *request; | |
854 | RNDIS_HALT_REQUEST *halt; | |
855 | ||
856 | DPRINT_ENTER(NETVSC); | |
857 | ||
858 | // Attempt to do a rndis device halt | |
859 | request = GetRndisRequest(Device, REMOTE_NDIS_HALT_MSG, RNDIS_MESSAGE_SIZE(RNDIS_HALT_REQUEST)); | |
860 | if (!request) | |
861 | { | |
862 | goto Cleanup; | |
863 | } | |
864 | ||
865 | // Setup the rndis set | |
866 | halt = &request->RequestMessage.Message.HaltRequest; | |
867 | halt->RequestId = InterlockedIncrement((int*)&Device->NewRequestId); | |
868 | ||
869 | // Ignore return since this msg is optional. | |
870 | RndisFilterSendRequest(Device, request); | |
871 | ||
872 | Device->State = RNDIS_DEV_UNINITIALIZED; | |
873 | ||
874 | Cleanup: | |
875 | if (request) | |
876 | { | |
877 | PutRndisRequest(Device, request); | |
878 | } | |
879 | DPRINT_EXIT(NETVSC); | |
880 | return; | |
881 | } | |
882 | ||
883 | ||
884 | static int | |
885 | RndisFilterOpenDevice( | |
886 | RNDIS_DEVICE *Device | |
887 | ) | |
888 | { | |
889 | int ret=0; | |
890 | ||
891 | DPRINT_ENTER(NETVSC); | |
892 | ||
893 | if (Device->State != RNDIS_DEV_INITIALIZED) | |
894 | return 0; | |
895 | ||
896 | ret = RndisFilterSetPacketFilter(Device, NDIS_PACKET_TYPE_BROADCAST|NDIS_PACKET_TYPE_DIRECTED); | |
897 | if (ret == 0) | |
898 | { | |
899 | Device->State = RNDIS_DEV_DATAINITIALIZED; | |
900 | } | |
901 | ||
902 | DPRINT_EXIT(NETVSC); | |
903 | return ret; | |
904 | } | |
905 | ||
906 | static int | |
907 | RndisFilterCloseDevice( | |
908 | RNDIS_DEVICE *Device | |
909 | ) | |
910 | { | |
911 | int ret; | |
912 | ||
913 | DPRINT_ENTER(NETVSC); | |
914 | ||
915 | if (Device->State != RNDIS_DEV_DATAINITIALIZED) | |
916 | return 0; | |
917 | ||
918 | ret = RndisFilterSetPacketFilter(Device, 0); | |
919 | if (ret == 0) | |
920 | { | |
921 | Device->State = RNDIS_DEV_INITIALIZED; | |
922 | } | |
923 | ||
924 | DPRINT_EXIT(NETVSC); | |
925 | ||
926 | return ret; | |
927 | } | |
928 | ||
929 | ||
930 | int | |
931 | RndisFilterOnDeviceAdd( | |
932 | DEVICE_OBJECT *Device, | |
933 | void *AdditionalInfo | |
934 | ) | |
935 | { | |
936 | int ret; | |
937 | NETVSC_DEVICE *netDevice; | |
938 | RNDIS_DEVICE *rndisDevice; | |
939 | NETVSC_DEVICE_INFO *deviceInfo = (NETVSC_DEVICE_INFO*)AdditionalInfo; | |
940 | ||
941 | DPRINT_ENTER(NETVSC); | |
942 | ||
943 | //rndisDevice = MemAlloc(sizeof(RNDIS_DEVICE)); | |
944 | rndisDevice = GetRndisDevice(); | |
945 | if (!rndisDevice) | |
946 | { | |
947 | DPRINT_EXIT(NETVSC); | |
948 | return -1; | |
949 | } | |
950 | ||
951 | DPRINT_DBG(NETVSC, "rndis device object allocated - %p", rndisDevice); | |
952 | ||
953 | // Let the inner driver handle this first to create the netvsc channel | |
954 | // NOTE! Once the channel is created, we may get a receive callback | |
955 | // (RndisFilterOnReceive()) before this call is completed | |
956 | ret = gRndisFilter.InnerDriver.Base.OnDeviceAdd(Device, AdditionalInfo); | |
957 | if (ret != 0) | |
958 | { | |
959 | PutRndisDevice(rndisDevice); | |
960 | DPRINT_EXIT(NETVSC); | |
961 | return ret; | |
962 | } | |
963 | ||
964 | // | |
965 | // Initialize the rndis device | |
966 | // | |
967 | netDevice = (NETVSC_DEVICE*)Device->Extension; | |
968 | ASSERT(netDevice); | |
969 | ASSERT(netDevice->Device); | |
970 | ||
971 | netDevice->Extension = rndisDevice; | |
972 | rndisDevice->NetDevice = netDevice; | |
973 | ||
974 | // Send the rndis initialization message | |
975 | ret = RndisFilterInitDevice(rndisDevice); | |
976 | if (ret != 0) | |
977 | { | |
978 | // TODO: If rndis init failed, we will need to shut down the channel | |
979 | } | |
980 | ||
981 | // Get the mac address | |
982 | ret = RndisFilterQueryDeviceMac(rndisDevice); | |
983 | if (ret != 0) | |
984 | { | |
985 | // TODO: shutdown rndis device and the channel | |
986 | } | |
987 | ||
988 | DPRINT_INFO(NETVSC, "Device 0x%p mac addr %02x%02x%02x%02x%02x%02x", | |
989 | rndisDevice, | |
990 | rndisDevice->HwMacAddr[0], | |
991 | rndisDevice->HwMacAddr[1], | |
992 | rndisDevice->HwMacAddr[2], | |
993 | rndisDevice->HwMacAddr[3], | |
994 | rndisDevice->HwMacAddr[4], | |
995 | rndisDevice->HwMacAddr[5]); | |
996 | ||
997 | memcpy(deviceInfo->MacAddr, rndisDevice->HwMacAddr, HW_MACADDR_LEN); | |
998 | ||
999 | RndisFilterQueryDeviceLinkStatus(rndisDevice); | |
1000 | ||
1001 | deviceInfo->LinkState = rndisDevice->LinkStatus; | |
1002 | DPRINT_INFO(NETVSC, "Device 0x%p link state %s", rndisDevice, ((deviceInfo->LinkState)?("down"):("up"))); | |
1003 | ||
1004 | DPRINT_EXIT(NETVSC); | |
1005 | ||
1006 | return ret; | |
1007 | } | |
1008 | ||
1009 | ||
1010 | static int | |
1011 | RndisFilterOnDeviceRemove( | |
1012 | DEVICE_OBJECT *Device | |
1013 | ) | |
1014 | { | |
1015 | NETVSC_DEVICE *netDevice = (NETVSC_DEVICE*)Device->Extension; | |
1016 | RNDIS_DEVICE *rndisDevice = (RNDIS_DEVICE*)netDevice->Extension; | |
1017 | ||
1018 | DPRINT_ENTER(NETVSC); | |
1019 | ||
1020 | // Halt and release the rndis device | |
1021 | RndisFilterHaltDevice(rndisDevice); | |
1022 | ||
1023 | PutRndisDevice(rndisDevice); | |
1024 | netDevice->Extension = NULL; | |
1025 | ||
1026 | // Pass control to inner driver to remove the device | |
1027 | gRndisFilter.InnerDriver.Base.OnDeviceRemove(Device); | |
1028 | ||
1029 | DPRINT_EXIT(NETVSC); | |
1030 | ||
1031 | return 0; | |
1032 | } | |
1033 | ||
1034 | ||
1035 | static void | |
1036 | RndisFilterOnCleanup( | |
1037 | DRIVER_OBJECT *Driver | |
1038 | ) | |
1039 | { | |
1040 | DPRINT_ENTER(NETVSC); | |
1041 | ||
1042 | DPRINT_EXIT(NETVSC); | |
1043 | } | |
1044 | ||
1045 | static int | |
1046 | RndisFilterOnOpen( | |
1047 | DEVICE_OBJECT *Device | |
1048 | ) | |
1049 | { | |
1050 | int ret; | |
1051 | NETVSC_DEVICE *netDevice = (NETVSC_DEVICE*)Device->Extension; | |
1052 | ||
1053 | DPRINT_ENTER(NETVSC); | |
1054 | ||
1055 | ASSERT(netDevice); | |
1056 | ret = RndisFilterOpenDevice((RNDIS_DEVICE*)netDevice->Extension); | |
1057 | ||
1058 | DPRINT_EXIT(NETVSC); | |
1059 | ||
1060 | return ret; | |
1061 | } | |
1062 | ||
1063 | static int | |
1064 | RndisFilterOnClose( | |
1065 | DEVICE_OBJECT *Device | |
1066 | ) | |
1067 | { | |
1068 | int ret; | |
1069 | NETVSC_DEVICE *netDevice = (NETVSC_DEVICE*)Device->Extension; | |
1070 | ||
1071 | DPRINT_ENTER(NETVSC); | |
1072 | ||
1073 | ASSERT(netDevice); | |
1074 | ret = RndisFilterCloseDevice((RNDIS_DEVICE*)netDevice->Extension); | |
1075 | ||
1076 | DPRINT_EXIT(NETVSC); | |
1077 | ||
1078 | return ret; | |
1079 | } | |
1080 | ||
1081 | ||
1082 | static int | |
1083 | RndisFilterOnSend( | |
1084 | DEVICE_OBJECT *Device, | |
1085 | NETVSC_PACKET *Packet | |
1086 | ) | |
1087 | { | |
1088 | int ret=0; | |
1089 | RNDIS_FILTER_PACKET *filterPacket; | |
1090 | RNDIS_MESSAGE *rndisMessage; | |
1091 | RNDIS_PACKET *rndisPacket; | |
1092 | UINT32 rndisMessageSize; | |
1093 | ||
1094 | DPRINT_ENTER(NETVSC); | |
1095 | ||
1096 | // Add the rndis header | |
1097 | filterPacket = (RNDIS_FILTER_PACKET*)Packet->Extension; | |
1098 | ASSERT(filterPacket); | |
1099 | ||
1100 | memset(filterPacket, 0, sizeof(RNDIS_FILTER_PACKET)); | |
1101 | ||
1102 | rndisMessage = &filterPacket->Message; | |
1103 | rndisMessageSize = RNDIS_MESSAGE_SIZE(RNDIS_PACKET); | |
1104 | ||
1105 | rndisMessage->NdisMessageType = REMOTE_NDIS_PACKET_MSG; | |
1106 | rndisMessage->MessageLength = Packet->TotalDataBufferLength + rndisMessageSize; | |
1107 | ||
1108 | rndisPacket = &rndisMessage->Message.Packet; | |
1109 | rndisPacket->DataOffset = sizeof(RNDIS_PACKET); | |
1110 | rndisPacket->DataLength = Packet->TotalDataBufferLength; | |
1111 | ||
1112 | Packet->IsDataPacket = TRUE; | |
1113 | Packet->PageBuffers[0].Pfn = GetPhysicalAddress(rndisMessage) >> PAGE_SHIFT; | |
1114 | Packet->PageBuffers[0].Offset = (ULONG_PTR)rndisMessage & (PAGE_SIZE-1); | |
1115 | Packet->PageBuffers[0].Length = rndisMessageSize; | |
1116 | ||
1117 | // Save the packet send completion and context | |
1118 | filterPacket->OnCompletion = Packet->Completion.Send.OnSendCompletion; | |
1119 | filterPacket->CompletionContext = Packet->Completion.Send.SendCompletionContext; | |
1120 | ||
1121 | // Use ours | |
1122 | Packet->Completion.Send.OnSendCompletion = RndisFilterOnSendCompletion; | |
1123 | Packet->Completion.Send.SendCompletionContext = filterPacket; | |
1124 | ||
1125 | ret = gRndisFilter.InnerDriver.OnSend(Device, Packet); | |
1126 | if (ret != 0) | |
1127 | { | |
1128 | // Reset the completion to originals to allow retries from above | |
1129 | Packet->Completion.Send.OnSendCompletion = filterPacket->OnCompletion; | |
1130 | Packet->Completion.Send.SendCompletionContext = filterPacket->CompletionContext; | |
1131 | } | |
1132 | ||
1133 | DPRINT_EXIT(NETVSC); | |
1134 | ||
1135 | return ret; | |
1136 | } | |
1137 | ||
1138 | static void | |
1139 | RndisFilterOnSendCompletion( | |
1140 | void *Context) | |
1141 | { | |
1142 | RNDIS_FILTER_PACKET *filterPacket = (RNDIS_FILTER_PACKET *)Context; | |
1143 | ||
1144 | DPRINT_ENTER(NETVSC); | |
1145 | ||
1146 | // Pass it back to the original handler | |
1147 | filterPacket->OnCompletion(filterPacket->CompletionContext); | |
1148 | ||
1149 | DPRINT_EXIT(NETVSC); | |
1150 | } | |
1151 | ||
1152 | ||
1153 | static void | |
1154 | RndisFilterOnSendRequestCompletion( | |
1155 | void *Context | |
1156 | ) | |
1157 | { | |
1158 | DPRINT_ENTER(NETVSC); | |
1159 | ||
1160 | // Noop | |
1161 | DPRINT_EXIT(NETVSC); | |
1162 | } |