Commit | Line | Data |
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fceaf24a | 1 | /* |
fceaf24a HJ |
2 | * Copyright (c) 2009, Microsoft Corporation. |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms and conditions of the GNU General Public License, | |
6 | * version 2, as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple | |
15 | * Place - Suite 330, Boston, MA 02111-1307 USA. | |
16 | * | |
17 | * Authors: | |
18 | * Haiyang Zhang <haiyangz@microsoft.com> | |
19 | * Hank Janssen <hjanssen@microsoft.com> | |
fceaf24a | 20 | */ |
5654e932 | 21 | #include <linux/kernel.h> |
45da89e5 | 22 | #include <linux/highmem.h> |
5a0e3ad6 | 23 | #include <linux/slab.h> |
0120ee0d | 24 | #include <linux/io.h> |
9f8bd8ba SH |
25 | #include <linux/if_ether.h> |
26 | ||
4983b39a | 27 | #include "osd.h" |
645954c5 | 28 | #include "logging.h" |
a82c7a2a | 29 | #include "netvsc_api.h" |
043efcc3 | 30 | #include "rndis_filter.h" |
fceaf24a | 31 | |
454f18a9 | 32 | /* Data types */ |
e681b954 | 33 | struct rndis_filter_driver_object { |
454f18a9 | 34 | /* The original driver */ |
7e23a6e9 | 35 | struct netvsc_driver InnerDriver; |
e681b954 | 36 | }; |
fceaf24a | 37 | |
e681b954 | 38 | enum rndis_device_state { |
fceaf24a HJ |
39 | RNDIS_DEV_UNINITIALIZED = 0, |
40 | RNDIS_DEV_INITIALIZING, | |
41 | RNDIS_DEV_INITIALIZED, | |
42 | RNDIS_DEV_DATAINITIALIZED, | |
e681b954 | 43 | }; |
fceaf24a | 44 | |
e681b954 | 45 | struct rndis_device { |
ce9ea4cf | 46 | struct netvsc_device *NetDevice; |
fceaf24a | 47 | |
e681b954 | 48 | enum rndis_device_state State; |
0120ee0d | 49 | u32 LinkStatus; |
f4888417 | 50 | atomic_t NewRequestId; |
fceaf24a | 51 | |
880fb89c | 52 | spinlock_t request_lock; |
1f5459bc | 53 | struct list_head RequestList; |
fceaf24a | 54 | |
9f8bd8ba | 55 | unsigned char HwMacAddr[ETH_ALEN]; |
e681b954 | 56 | }; |
fceaf24a | 57 | |
e681b954 | 58 | struct rndis_request { |
1f5459bc | 59 | struct list_head ListEntry; |
aedb444a | 60 | struct osd_waitevent *WaitEvent; |
fceaf24a | 61 | |
0120ee0d GKH |
62 | /* |
63 | * FIXME: We assumed a fixed size response here. If we do ever need to | |
64 | * handle a bigger response, we can either define a max response | |
65 | * message or add a response buffer variable above this field | |
66 | */ | |
9f33d054 | 67 | struct rndis_message ResponseMessage; |
fceaf24a | 68 | |
454f18a9 | 69 | /* Simplify allocation by having a netvsc packet inline */ |
4193d4f4 | 70 | struct hv_netvsc_packet Packet; |
ee3d7ddf | 71 | struct hv_page_buffer Buffer; |
454f18a9 | 72 | /* FIXME: We assumed a fixed size request here. */ |
9f33d054 | 73 | struct rndis_message RequestMessage; |
e681b954 | 74 | }; |
fceaf24a HJ |
75 | |
76 | ||
e681b954 | 77 | struct rndis_filter_packet { |
0120ee0d | 78 | void *CompletionContext; |
211ccd6e | 79 | void (*OnCompletion)(void *context); |
9f33d054 | 80 | struct rndis_message Message; |
e681b954 | 81 | }; |
fceaf24a | 82 | |
454f18a9 | 83 | |
0120ee0d GKH |
84 | static int RndisFilterOnDeviceAdd(struct hv_device *Device, |
85 | void *AdditionalInfo); | |
454f18a9 | 86 | |
0120ee0d | 87 | static int RndisFilterOnDeviceRemove(struct hv_device *Device); |
fceaf24a | 88 | |
0120ee0d | 89 | static void RndisFilterOnCleanup(struct hv_driver *Driver); |
fceaf24a | 90 | |
0120ee0d GKH |
91 | static int RndisFilterOnSend(struct hv_device *Device, |
92 | struct hv_netvsc_packet *Packet); | |
93 | ||
94 | static void RndisFilterOnSendCompletion(void *Context); | |
95 | ||
96 | static void RndisFilterOnSendRequestCompletion(void *Context); | |
454f18a9 BP |
97 | |
98 | ||
99 | /* The one and only */ | |
e681b954 | 100 | static struct rndis_filter_driver_object gRndisFilter; |
fceaf24a | 101 | |
0120ee0d | 102 | static struct rndis_device *GetRndisDevice(void) |
fceaf24a | 103 | { |
e681b954 | 104 | struct rndis_device *device; |
fceaf24a | 105 | |
e681b954 | 106 | device = kzalloc(sizeof(struct rndis_device), GFP_KERNEL); |
fceaf24a | 107 | if (!device) |
fceaf24a | 108 | return NULL; |
fceaf24a | 109 | |
880fb89c | 110 | spin_lock_init(&device->request_lock); |
fceaf24a | 111 | |
1f5459bc | 112 | INIT_LIST_HEAD(&device->RequestList); |
fceaf24a HJ |
113 | |
114 | device->State = RNDIS_DEV_UNINITIALIZED; | |
115 | ||
116 | return device; | |
117 | } | |
118 | ||
0120ee0d GKH |
119 | static struct rndis_request *GetRndisRequest(struct rndis_device *Device, |
120 | u32 MessageType, | |
121 | u32 MessageLength) | |
fceaf24a | 122 | { |
e681b954 | 123 | struct rndis_request *request; |
9f33d054 GKH |
124 | struct rndis_message *rndisMessage; |
125 | struct rndis_set_request *set; | |
880fb89c | 126 | unsigned long flags; |
fceaf24a | 127 | |
e681b954 | 128 | request = kzalloc(sizeof(struct rndis_request), GFP_KERNEL); |
fceaf24a | 129 | if (!request) |
fceaf24a | 130 | return NULL; |
fceaf24a | 131 | |
bfc30aae | 132 | request->WaitEvent = osd_WaitEventCreate(); |
0120ee0d | 133 | if (!request->WaitEvent) { |
8c69f52a | 134 | kfree(request); |
fceaf24a HJ |
135 | return NULL; |
136 | } | |
137 | ||
138 | rndisMessage = &request->RequestMessage; | |
139 | rndisMessage->NdisMessageType = MessageType; | |
140 | rndisMessage->MessageLength = MessageLength; | |
141 | ||
0120ee0d GKH |
142 | /* |
143 | * Set the request id. This field is always after the rndis header for | |
144 | * request/response packet types so we just used the SetRequest as a | |
145 | * template | |
146 | */ | |
fceaf24a | 147 | set = &rndisMessage->Message.SetRequest; |
f4888417 | 148 | set->RequestId = atomic_inc_return(&Device->NewRequestId); |
fceaf24a | 149 | |
454f18a9 | 150 | /* Add to the request list */ |
880fb89c | 151 | spin_lock_irqsave(&Device->request_lock, flags); |
1f5459bc | 152 | list_add_tail(&request->ListEntry, &Device->RequestList); |
880fb89c | 153 | spin_unlock_irqrestore(&Device->request_lock, flags); |
fceaf24a HJ |
154 | |
155 | return request; | |
156 | } | |
157 | ||
0120ee0d GKH |
158 | static void PutRndisRequest(struct rndis_device *Device, |
159 | struct rndis_request *Request) | |
fceaf24a | 160 | { |
880fb89c GKH |
161 | unsigned long flags; |
162 | ||
163 | spin_lock_irqsave(&Device->request_lock, flags); | |
1f5459bc | 164 | list_del(&Request->ListEntry); |
880fb89c | 165 | spin_unlock_irqrestore(&Device->request_lock, flags); |
fceaf24a | 166 | |
420beac4 | 167 | kfree(Request->WaitEvent); |
8c69f52a | 168 | kfree(Request); |
fceaf24a HJ |
169 | } |
170 | ||
0120ee0d | 171 | static void DumpRndisMessage(struct rndis_message *RndisMessage) |
fceaf24a | 172 | { |
0120ee0d | 173 | switch (RndisMessage->NdisMessageType) { |
fceaf24a | 174 | case REMOTE_NDIS_PACKET_MSG: |
0120ee0d GKH |
175 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_PACKET_MSG (len %u, " |
176 | "data offset %u data len %u, # oob %u, " | |
177 | "oob offset %u, oob len %u, pkt offset %u, " | |
178 | "pkt len %u", | |
179 | RndisMessage->MessageLength, | |
180 | RndisMessage->Message.Packet.DataOffset, | |
181 | RndisMessage->Message.Packet.DataLength, | |
182 | RndisMessage->Message.Packet.NumOOBDataElements, | |
183 | RndisMessage->Message.Packet.OOBDataOffset, | |
184 | RndisMessage->Message.Packet.OOBDataLength, | |
185 | RndisMessage->Message.Packet.PerPacketInfoOffset, | |
186 | RndisMessage->Message.Packet.PerPacketInfoLength); | |
fceaf24a HJ |
187 | break; |
188 | ||
189 | case REMOTE_NDIS_INITIALIZE_CMPLT: | |
0120ee0d GKH |
190 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_INITIALIZE_CMPLT " |
191 | "(len %u, id 0x%x, status 0x%x, major %d, minor %d, " | |
192 | "device flags %d, max xfer size 0x%x, max pkts %u, " | |
193 | "pkt aligned %u)", | |
fceaf24a HJ |
194 | RndisMessage->MessageLength, |
195 | RndisMessage->Message.InitializeComplete.RequestId, | |
196 | RndisMessage->Message.InitializeComplete.Status, | |
197 | RndisMessage->Message.InitializeComplete.MajorVersion, | |
198 | RndisMessage->Message.InitializeComplete.MinorVersion, | |
199 | RndisMessage->Message.InitializeComplete.DeviceFlags, | |
200 | RndisMessage->Message.InitializeComplete.MaxTransferSize, | |
201 | RndisMessage->Message.InitializeComplete.MaxPacketsPerMessage, | |
202 | RndisMessage->Message.InitializeComplete.PacketAlignmentFactor); | |
203 | break; | |
204 | ||
205 | case REMOTE_NDIS_QUERY_CMPLT: | |
0120ee0d GKH |
206 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_QUERY_CMPLT " |
207 | "(len %u, id 0x%x, status 0x%x, buf len %u, " | |
208 | "buf offset %u)", | |
fceaf24a HJ |
209 | RndisMessage->MessageLength, |
210 | RndisMessage->Message.QueryComplete.RequestId, | |
211 | RndisMessage->Message.QueryComplete.Status, | |
212 | RndisMessage->Message.QueryComplete.InformationBufferLength, | |
213 | RndisMessage->Message.QueryComplete.InformationBufferOffset); | |
214 | break; | |
215 | ||
216 | case REMOTE_NDIS_SET_CMPLT: | |
0120ee0d GKH |
217 | DPRINT_DBG(NETVSC, |
218 | "REMOTE_NDIS_SET_CMPLT (len %u, id 0x%x, status 0x%x)", | |
fceaf24a HJ |
219 | RndisMessage->MessageLength, |
220 | RndisMessage->Message.SetComplete.RequestId, | |
221 | RndisMessage->Message.SetComplete.Status); | |
222 | break; | |
223 | ||
224 | case REMOTE_NDIS_INDICATE_STATUS_MSG: | |
0120ee0d GKH |
225 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_INDICATE_STATUS_MSG " |
226 | "(len %u, status 0x%x, buf len %u, buf offset %u)", | |
fceaf24a HJ |
227 | RndisMessage->MessageLength, |
228 | RndisMessage->Message.IndicateStatus.Status, | |
229 | RndisMessage->Message.IndicateStatus.StatusBufferLength, | |
230 | RndisMessage->Message.IndicateStatus.StatusBufferOffset); | |
231 | break; | |
232 | ||
233 | default: | |
234 | DPRINT_DBG(NETVSC, "0x%x (len %u)", | |
235 | RndisMessage->NdisMessageType, | |
236 | RndisMessage->MessageLength); | |
237 | break; | |
238 | } | |
239 | } | |
240 | ||
0120ee0d GKH |
241 | static int RndisFilterSendRequest(struct rndis_device *Device, |
242 | struct rndis_request *Request) | |
fceaf24a | 243 | { |
0120ee0d | 244 | int ret; |
4193d4f4 | 245 | struct hv_netvsc_packet *packet; |
fceaf24a | 246 | |
454f18a9 | 247 | /* Setup the packet to send it */ |
fceaf24a HJ |
248 | packet = &Request->Packet; |
249 | ||
0e727613 | 250 | packet->IsDataPacket = false; |
fceaf24a HJ |
251 | packet->TotalDataBufferLength = Request->RequestMessage.MessageLength; |
252 | packet->PageBufferCount = 1; | |
253 | ||
0120ee0d GKH |
254 | packet->PageBuffers[0].Pfn = virt_to_phys(&Request->RequestMessage) >> |
255 | PAGE_SHIFT; | |
fceaf24a | 256 | packet->PageBuffers[0].Length = Request->RequestMessage.MessageLength; |
0120ee0d GKH |
257 | packet->PageBuffers[0].Offset = |
258 | (unsigned long)&Request->RequestMessage & (PAGE_SIZE - 1); | |
fceaf24a | 259 | |
454f18a9 | 260 | packet->Completion.Send.SendCompletionContext = Request;/* packet; */ |
0120ee0d GKH |
261 | packet->Completion.Send.OnSendCompletion = |
262 | RndisFilterOnSendRequestCompletion; | |
c4b0bc94 | 263 | packet->Completion.Send.SendCompletionTid = (unsigned long)Device; |
fceaf24a HJ |
264 | |
265 | ret = gRndisFilter.InnerDriver.OnSend(Device->NetDevice->Device, packet); | |
fceaf24a HJ |
266 | return ret; |
267 | } | |
268 | ||
e681b954 | 269 | static void RndisFilterReceiveResponse(struct rndis_device *Device, |
9f33d054 | 270 | struct rndis_message *Response) |
fceaf24a | 271 | { |
e681b954 | 272 | struct rndis_request *request = NULL; |
0e727613 | 273 | bool found = false; |
880fb89c | 274 | unsigned long flags; |
fceaf24a | 275 | |
880fb89c | 276 | spin_lock_irqsave(&Device->request_lock, flags); |
1f5459bc | 277 | list_for_each_entry(request, &Device->RequestList, ListEntry) { |
0120ee0d GKH |
278 | /* |
279 | * All request/response message contains RequestId as the 1st | |
280 | * field | |
281 | */ | |
282 | if (request->RequestMessage.Message.InitializeRequest.RequestId | |
283 | == Response->Message.InitializeComplete.RequestId) { | |
284 | DPRINT_DBG(NETVSC, "found rndis request for " | |
285 | "this response (id 0x%x req type 0x%x res " | |
286 | "type 0x%x)", | |
287 | request->RequestMessage.Message.InitializeRequest.RequestId, | |
288 | request->RequestMessage.NdisMessageType, | |
289 | Response->NdisMessageType); | |
fceaf24a | 290 | |
0e727613 | 291 | found = true; |
fceaf24a HJ |
292 | break; |
293 | } | |
294 | } | |
880fb89c | 295 | spin_unlock_irqrestore(&Device->request_lock, flags); |
fceaf24a | 296 | |
0120ee0d GKH |
297 | if (found) { |
298 | if (Response->MessageLength <= sizeof(struct rndis_message)) { | |
299 | memcpy(&request->ResponseMessage, Response, | |
300 | Response->MessageLength); | |
301 | } else { | |
302 | DPRINT_ERR(NETVSC, "rndis response buffer overflow " | |
303 | "detected (size %u max %zu)", | |
304 | Response->MessageLength, | |
305 | sizeof(struct rndis_filter_packet)); | |
306 | ||
307 | if (Response->NdisMessageType == | |
308 | REMOTE_NDIS_RESET_CMPLT) { | |
309 | /* does not have a request id field */ | |
fceaf24a | 310 | request->ResponseMessage.Message.ResetComplete.Status = STATUS_BUFFER_OVERFLOW; |
0120ee0d | 311 | } else { |
fceaf24a HJ |
312 | request->ResponseMessage.Message.InitializeComplete.Status = STATUS_BUFFER_OVERFLOW; |
313 | } | |
314 | } | |
315 | ||
bfc30aae | 316 | osd_WaitEventSet(request->WaitEvent); |
0120ee0d GKH |
317 | } else { |
318 | DPRINT_ERR(NETVSC, "no rndis request found for this response " | |
319 | "(id 0x%x res type 0x%x)", | |
320 | Response->Message.InitializeComplete.RequestId, | |
321 | Response->NdisMessageType); | |
fceaf24a | 322 | } |
fceaf24a HJ |
323 | } |
324 | ||
e681b954 | 325 | static void RndisFilterReceiveIndicateStatus(struct rndis_device *Device, |
9f33d054 | 326 | struct rndis_message *Response) |
fceaf24a | 327 | { |
0120ee0d GKH |
328 | struct rndis_indicate_status *indicate = |
329 | &Response->Message.IndicateStatus; | |
fceaf24a | 330 | |
0120ee0d | 331 | if (indicate->Status == RNDIS_STATUS_MEDIA_CONNECT) { |
fceaf24a | 332 | gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 1); |
0120ee0d | 333 | } else if (indicate->Status == RNDIS_STATUS_MEDIA_DISCONNECT) { |
fceaf24a | 334 | gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 0); |
0120ee0d GKH |
335 | } else { |
336 | /* | |
337 | * TODO: | |
338 | */ | |
fceaf24a HJ |
339 | } |
340 | } | |
341 | ||
e681b954 | 342 | static void RndisFilterReceiveData(struct rndis_device *Device, |
9f33d054 GKH |
343 | struct rndis_message *Message, |
344 | struct hv_netvsc_packet *Packet) | |
fceaf24a | 345 | { |
9f33d054 | 346 | struct rndis_packet *rndisPacket; |
4d643114 | 347 | u32 dataOffset; |
fceaf24a | 348 | |
454f18a9 | 349 | /* empty ethernet frame ?? */ |
45e44314 BP |
350 | /* ASSERT(Packet->PageBuffers[0].Length > */ |
351 | /* RNDIS_MESSAGE_SIZE(struct rndis_packet)); */ | |
fceaf24a HJ |
352 | |
353 | rndisPacket = &Message->Message.Packet; | |
354 | ||
0120ee0d GKH |
355 | /* |
356 | * FIXME: Handle multiple rndis pkt msgs that maybe enclosed in this | |
357 | * netvsc packet (ie TotalDataBufferLength != MessageLength) | |
358 | */ | |
fceaf24a | 359 | |
454f18a9 | 360 | /* Remove the rndis header and pass it back up the stack */ |
fceaf24a HJ |
361 | dataOffset = RNDIS_HEADER_SIZE + rndisPacket->DataOffset; |
362 | ||
363 | Packet->TotalDataBufferLength -= dataOffset; | |
364 | Packet->PageBuffers[0].Offset += dataOffset; | |
365 | Packet->PageBuffers[0].Length -= dataOffset; | |
366 | ||
0e727613 | 367 | Packet->IsDataPacket = true; |
fceaf24a | 368 | |
0120ee0d GKH |
369 | gRndisFilter.InnerDriver.OnReceiveCallback(Device->NetDevice->Device, |
370 | Packet); | |
fceaf24a HJ |
371 | } |
372 | ||
0120ee0d GKH |
373 | static int RndisFilterOnReceive(struct hv_device *Device, |
374 | struct hv_netvsc_packet *Packet) | |
fceaf24a | 375 | { |
ce9ea4cf | 376 | struct netvsc_device *netDevice = Device->Extension; |
e681b954 | 377 | struct rndis_device *rndisDevice; |
9f33d054 GKH |
378 | struct rndis_message rndisMessage; |
379 | struct rndis_message *rndisHeader; | |
fceaf24a | 380 | |
8a62d716 BP |
381 | if (!netDevice) |
382 | return -EINVAL; | |
383 | ||
454f18a9 | 384 | /* Make sure the rndis device state is initialized */ |
0120ee0d GKH |
385 | if (!netDevice->Extension) { |
386 | DPRINT_ERR(NETVSC, "got rndis message but no rndis device..." | |
387 | "dropping this message!"); | |
fceaf24a HJ |
388 | return -1; |
389 | } | |
390 | ||
0120ee0d GKH |
391 | rndisDevice = (struct rndis_device *)netDevice->Extension; |
392 | if (rndisDevice->State == RNDIS_DEV_UNINITIALIZED) { | |
393 | DPRINT_ERR(NETVSC, "got rndis message but rndis device " | |
394 | "uninitialized...dropping this message!"); | |
fceaf24a HJ |
395 | return -1; |
396 | } | |
397 | ||
0120ee0d GKH |
398 | rndisHeader = (struct rndis_message *)kmap_atomic( |
399 | pfn_to_page(Packet->PageBuffers[0].Pfn), KM_IRQ0); | |
fceaf24a | 400 | |
0120ee0d GKH |
401 | rndisHeader = (void *)((unsigned long)rndisHeader + |
402 | Packet->PageBuffers[0].Offset); | |
fceaf24a | 403 | |
454f18a9 | 404 | /* Make sure we got a valid rndis message */ |
0120ee0d GKH |
405 | /* |
406 | * FIXME: There seems to be a bug in set completion msg where its | |
407 | * MessageLength is 16 bytes but the ByteCount field in the xfer page | |
408 | * range shows 52 bytes | |
409 | * */ | |
fceaf24a | 410 | #if 0 |
0120ee0d GKH |
411 | if (Packet->TotalDataBufferLength != rndisHeader->MessageLength) { |
412 | kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset, | |
413 | KM_IRQ0); | |
414 | ||
415 | DPRINT_ERR(NETVSC, "invalid rndis message? (expected %u " | |
416 | "bytes got %u)...dropping this message!", | |
417 | rndisHeader->MessageLength, | |
418 | Packet->TotalDataBufferLength); | |
fceaf24a HJ |
419 | return -1; |
420 | } | |
421 | #endif | |
422 | ||
0120ee0d GKH |
423 | if ((rndisHeader->NdisMessageType != REMOTE_NDIS_PACKET_MSG) && |
424 | (rndisHeader->MessageLength > sizeof(struct rndis_message))) { | |
425 | DPRINT_ERR(NETVSC, "incoming rndis message buffer overflow " | |
426 | "detected (got %u, max %zu)...marking it an error!", | |
427 | rndisHeader->MessageLength, | |
428 | sizeof(struct rndis_message)); | |
fceaf24a HJ |
429 | } |
430 | ||
0120ee0d GKH |
431 | memcpy(&rndisMessage, rndisHeader, |
432 | (rndisHeader->MessageLength > sizeof(struct rndis_message)) ? | |
433 | sizeof(struct rndis_message) : | |
434 | rndisHeader->MessageLength); | |
fceaf24a | 435 | |
45da89e5 | 436 | kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset, KM_IRQ0); |
fceaf24a HJ |
437 | |
438 | DumpRndisMessage(&rndisMessage); | |
439 | ||
0120ee0d | 440 | switch (rndisMessage.NdisMessageType) { |
fceaf24a | 441 | case REMOTE_NDIS_PACKET_MSG: |
0120ee0d | 442 | /* data msg */ |
fceaf24a HJ |
443 | RndisFilterReceiveData(rndisDevice, &rndisMessage, Packet); |
444 | break; | |
445 | ||
fceaf24a HJ |
446 | case REMOTE_NDIS_INITIALIZE_CMPLT: |
447 | case REMOTE_NDIS_QUERY_CMPLT: | |
448 | case REMOTE_NDIS_SET_CMPLT: | |
454f18a9 BP |
449 | /* case REMOTE_NDIS_RESET_CMPLT: */ |
450 | /* case REMOTE_NDIS_KEEPALIVE_CMPLT: */ | |
0120ee0d | 451 | /* completion msgs */ |
fceaf24a HJ |
452 | RndisFilterReceiveResponse(rndisDevice, &rndisMessage); |
453 | break; | |
454 | ||
fceaf24a | 455 | case REMOTE_NDIS_INDICATE_STATUS_MSG: |
0120ee0d | 456 | /* notification msgs */ |
fceaf24a HJ |
457 | RndisFilterReceiveIndicateStatus(rndisDevice, &rndisMessage); |
458 | break; | |
459 | default: | |
0120ee0d GKH |
460 | DPRINT_ERR(NETVSC, "unhandled rndis message (type %u len %u)", |
461 | rndisMessage.NdisMessageType, | |
462 | rndisMessage.MessageLength); | |
fceaf24a HJ |
463 | break; |
464 | } | |
465 | ||
fceaf24a HJ |
466 | return 0; |
467 | } | |
468 | ||
0120ee0d GKH |
469 | static int RndisFilterQueryDevice(struct rndis_device *Device, u32 Oid, |
470 | void *Result, u32 *ResultSize) | |
fceaf24a | 471 | { |
e681b954 | 472 | struct rndis_request *request; |
4d643114 | 473 | u32 inresultSize = *ResultSize; |
9f33d054 GKH |
474 | struct rndis_query_request *query; |
475 | struct rndis_query_complete *queryComplete; | |
0120ee0d | 476 | int ret = 0; |
fceaf24a | 477 | |
8a62d716 BP |
478 | if (!Result) |
479 | return -EINVAL; | |
fceaf24a HJ |
480 | |
481 | *ResultSize = 0; | |
0120ee0d GKH |
482 | request = GetRndisRequest(Device, REMOTE_NDIS_QUERY_MSG, |
483 | RNDIS_MESSAGE_SIZE(struct rndis_query_request)); | |
484 | if (!request) { | |
fceaf24a HJ |
485 | ret = -1; |
486 | goto Cleanup; | |
487 | } | |
488 | ||
454f18a9 | 489 | /* Setup the rndis query */ |
fceaf24a HJ |
490 | query = &request->RequestMessage.Message.QueryRequest; |
491 | query->Oid = Oid; | |
9f33d054 | 492 | query->InformationBufferOffset = sizeof(struct rndis_query_request); |
fceaf24a HJ |
493 | query->InformationBufferLength = 0; |
494 | query->DeviceVcHandle = 0; | |
495 | ||
496 | ret = RndisFilterSendRequest(Device, request); | |
497 | if (ret != 0) | |
fceaf24a | 498 | goto Cleanup; |
fceaf24a | 499 | |
bfc30aae | 500 | osd_WaitEventWait(request->WaitEvent); |
fceaf24a | 501 | |
454f18a9 | 502 | /* Copy the response back */ |
fceaf24a HJ |
503 | queryComplete = &request->ResponseMessage.Message.QueryComplete; |
504 | ||
0120ee0d | 505 | if (queryComplete->InformationBufferLength > inresultSize) { |
fceaf24a HJ |
506 | ret = -1; |
507 | goto Cleanup; | |
508 | } | |
509 | ||
510 | memcpy(Result, | |
0120ee0d GKH |
511 | (void *)((unsigned long)queryComplete + |
512 | queryComplete->InformationBufferOffset), | |
513 | queryComplete->InformationBufferLength); | |
fceaf24a HJ |
514 | |
515 | *ResultSize = queryComplete->InformationBufferLength; | |
516 | ||
517 | Cleanup: | |
518 | if (request) | |
fceaf24a | 519 | PutRndisRequest(Device, request); |
fceaf24a HJ |
520 | |
521 | return ret; | |
522 | } | |
523 | ||
0120ee0d | 524 | static int RndisFilterQueryDeviceMac(struct rndis_device *Device) |
fceaf24a | 525 | { |
9f8bd8ba | 526 | u32 size = ETH_ALEN; |
fceaf24a HJ |
527 | |
528 | return RndisFilterQueryDevice(Device, | |
0120ee0d GKH |
529 | RNDIS_OID_802_3_PERMANENT_ADDRESS, |
530 | Device->HwMacAddr, &size); | |
fceaf24a HJ |
531 | } |
532 | ||
0120ee0d | 533 | static int RndisFilterQueryDeviceLinkStatus(struct rndis_device *Device) |
fceaf24a | 534 | { |
0120ee0d | 535 | u32 size = sizeof(u32); |
fceaf24a HJ |
536 | |
537 | return RndisFilterQueryDevice(Device, | |
0120ee0d GKH |
538 | RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, |
539 | &Device->LinkStatus, &size); | |
fceaf24a HJ |
540 | } |
541 | ||
0120ee0d GKH |
542 | static int RndisFilterSetPacketFilter(struct rndis_device *Device, |
543 | u32 NewFilter) | |
fceaf24a | 544 | { |
e681b954 | 545 | struct rndis_request *request; |
9f33d054 GKH |
546 | struct rndis_set_request *set; |
547 | struct rndis_set_complete *setComplete; | |
4d643114 | 548 | u32 status; |
fceaf24a HJ |
549 | int ret; |
550 | ||
45e44314 BP |
551 | /* ASSERT(RNDIS_MESSAGE_SIZE(struct rndis_set_request) + sizeof(u32) <= */ |
552 | /* sizeof(struct rndis_message)); */ | |
fceaf24a | 553 | |
0120ee0d GKH |
554 | request = GetRndisRequest(Device, REMOTE_NDIS_SET_MSG, |
555 | RNDIS_MESSAGE_SIZE(struct rndis_set_request) + | |
556 | sizeof(u32)); | |
557 | if (!request) { | |
fceaf24a HJ |
558 | ret = -1; |
559 | goto Cleanup; | |
560 | } | |
561 | ||
454f18a9 | 562 | /* Setup the rndis set */ |
fceaf24a HJ |
563 | set = &request->RequestMessage.Message.SetRequest; |
564 | set->Oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER; | |
4d643114 | 565 | set->InformationBufferLength = sizeof(u32); |
9f33d054 | 566 | set->InformationBufferOffset = sizeof(struct rndis_set_request); |
fceaf24a | 567 | |
0120ee0d GKH |
568 | memcpy((void *)(unsigned long)set + sizeof(struct rndis_set_request), |
569 | &NewFilter, sizeof(u32)); | |
fceaf24a HJ |
570 | |
571 | ret = RndisFilterSendRequest(Device, request); | |
572 | if (ret != 0) | |
fceaf24a | 573 | goto Cleanup; |
fceaf24a | 574 | |
bfc30aae | 575 | ret = osd_WaitEventWaitEx(request->WaitEvent, 2000/*2sec*/); |
0120ee0d | 576 | if (!ret) { |
fceaf24a HJ |
577 | ret = -1; |
578 | DPRINT_ERR(NETVSC, "timeout before we got a set response..."); | |
0120ee0d GKH |
579 | /* |
580 | * We cant deallocate the request since we may still receive a | |
581 | * send completion for it. | |
582 | */ | |
fceaf24a | 583 | goto Exit; |
0120ee0d | 584 | } else { |
fceaf24a | 585 | if (ret > 0) |
fceaf24a | 586 | ret = 0; |
fceaf24a HJ |
587 | setComplete = &request->ResponseMessage.Message.SetComplete; |
588 | status = setComplete->Status; | |
589 | } | |
590 | ||
591 | Cleanup: | |
592 | if (request) | |
fceaf24a | 593 | PutRndisRequest(Device, request); |
fceaf24a | 594 | Exit: |
fceaf24a HJ |
595 | return ret; |
596 | } | |
597 | ||
7e23a6e9 | 598 | int RndisFilterInit(struct netvsc_driver *Driver) |
fceaf24a | 599 | { |
0120ee0d GKH |
600 | DPRINT_DBG(NETVSC, "sizeof(struct rndis_filter_packet) == %zd", |
601 | sizeof(struct rndis_filter_packet)); | |
fceaf24a | 602 | |
e681b954 | 603 | Driver->RequestExtSize = sizeof(struct rndis_filter_packet); |
fceaf24a | 604 | |
454f18a9 | 605 | /* Driver->Context = rndisDriver; */ |
fceaf24a | 606 | |
e681b954 | 607 | memset(&gRndisFilter, 0, sizeof(struct rndis_filter_driver_object)); |
fceaf24a HJ |
608 | |
609 | /*rndisDriver->Driver = Driver; | |
610 | ||
611 | ASSERT(Driver->OnLinkStatusChanged); | |
612 | rndisDriver->OnLinkStatusChanged = Driver->OnLinkStatusChanged;*/ | |
613 | ||
454f18a9 | 614 | /* Save the original dispatch handlers before we override it */ |
fceaf24a | 615 | gRndisFilter.InnerDriver.Base.OnDeviceAdd = Driver->Base.OnDeviceAdd; |
0120ee0d GKH |
616 | gRndisFilter.InnerDriver.Base.OnDeviceRemove = |
617 | Driver->Base.OnDeviceRemove; | |
fceaf24a HJ |
618 | gRndisFilter.InnerDriver.Base.OnCleanup = Driver->Base.OnCleanup; |
619 | ||
45e44314 BP |
620 | /* ASSERT(Driver->OnSend); */ |
621 | /* ASSERT(Driver->OnReceiveCallback); */ | |
fceaf24a HJ |
622 | gRndisFilter.InnerDriver.OnSend = Driver->OnSend; |
623 | gRndisFilter.InnerDriver.OnReceiveCallback = Driver->OnReceiveCallback; | |
0120ee0d GKH |
624 | gRndisFilter.InnerDriver.OnLinkStatusChanged = |
625 | Driver->OnLinkStatusChanged; | |
fceaf24a | 626 | |
454f18a9 | 627 | /* Override */ |
fceaf24a HJ |
628 | Driver->Base.OnDeviceAdd = RndisFilterOnDeviceAdd; |
629 | Driver->Base.OnDeviceRemove = RndisFilterOnDeviceRemove; | |
630 | Driver->Base.OnCleanup = RndisFilterOnCleanup; | |
631 | Driver->OnSend = RndisFilterOnSend; | |
454f18a9 | 632 | /* Driver->QueryLinkStatus = RndisFilterQueryDeviceLinkStatus; */ |
fceaf24a HJ |
633 | Driver->OnReceiveCallback = RndisFilterOnReceive; |
634 | ||
fceaf24a HJ |
635 | return 0; |
636 | } | |
637 | ||
e681b954 | 638 | static int RndisFilterInitDevice(struct rndis_device *Device) |
fceaf24a | 639 | { |
e681b954 | 640 | struct rndis_request *request; |
9f33d054 GKH |
641 | struct rndis_initialize_request *init; |
642 | struct rndis_initialize_complete *initComplete; | |
4d643114 | 643 | u32 status; |
fceaf24a HJ |
644 | int ret; |
645 | ||
0120ee0d GKH |
646 | request = GetRndisRequest(Device, REMOTE_NDIS_INITIALIZE_MSG, |
647 | RNDIS_MESSAGE_SIZE(struct rndis_initialize_request)); | |
648 | if (!request) { | |
fceaf24a HJ |
649 | ret = -1; |
650 | goto Cleanup; | |
651 | } | |
652 | ||
454f18a9 | 653 | /* Setup the rndis set */ |
fceaf24a HJ |
654 | init = &request->RequestMessage.Message.InitializeRequest; |
655 | init->MajorVersion = RNDIS_MAJOR_VERSION; | |
656 | init->MinorVersion = RNDIS_MINOR_VERSION; | |
0120ee0d GKH |
657 | /* FIXME: Use 1536 - rounded ethernet frame size */ |
658 | init->MaxTransferSize = 2048; | |
fceaf24a HJ |
659 | |
660 | Device->State = RNDIS_DEV_INITIALIZING; | |
661 | ||
662 | ret = RndisFilterSendRequest(Device, request); | |
0120ee0d | 663 | if (ret != 0) { |
fceaf24a HJ |
664 | Device->State = RNDIS_DEV_UNINITIALIZED; |
665 | goto Cleanup; | |
666 | } | |
667 | ||
bfc30aae | 668 | osd_WaitEventWait(request->WaitEvent); |
fceaf24a HJ |
669 | |
670 | initComplete = &request->ResponseMessage.Message.InitializeComplete; | |
671 | status = initComplete->Status; | |
0120ee0d | 672 | if (status == RNDIS_STATUS_SUCCESS) { |
fceaf24a HJ |
673 | Device->State = RNDIS_DEV_INITIALIZED; |
674 | ret = 0; | |
0120ee0d | 675 | } else { |
fceaf24a HJ |
676 | Device->State = RNDIS_DEV_UNINITIALIZED; |
677 | ret = -1; | |
678 | } | |
679 | ||
680 | Cleanup: | |
681 | if (request) | |
fceaf24a | 682 | PutRndisRequest(Device, request); |
fceaf24a HJ |
683 | |
684 | return ret; | |
685 | } | |
686 | ||
e681b954 | 687 | static void RndisFilterHaltDevice(struct rndis_device *Device) |
fceaf24a | 688 | { |
e681b954 | 689 | struct rndis_request *request; |
9f33d054 | 690 | struct rndis_halt_request *halt; |
fceaf24a | 691 | |
454f18a9 | 692 | /* Attempt to do a rndis device halt */ |
0120ee0d GKH |
693 | request = GetRndisRequest(Device, REMOTE_NDIS_HALT_MSG, |
694 | RNDIS_MESSAGE_SIZE(struct rndis_halt_request)); | |
fceaf24a | 695 | if (!request) |
fceaf24a | 696 | goto Cleanup; |
fceaf24a | 697 | |
454f18a9 | 698 | /* Setup the rndis set */ |
fceaf24a | 699 | halt = &request->RequestMessage.Message.HaltRequest; |
f4888417 | 700 | halt->RequestId = atomic_inc_return(&Device->NewRequestId); |
fceaf24a | 701 | |
454f18a9 | 702 | /* Ignore return since this msg is optional. */ |
fceaf24a HJ |
703 | RndisFilterSendRequest(Device, request); |
704 | ||
705 | Device->State = RNDIS_DEV_UNINITIALIZED; | |
706 | ||
707 | Cleanup: | |
708 | if (request) | |
fceaf24a | 709 | PutRndisRequest(Device, request); |
fceaf24a HJ |
710 | return; |
711 | } | |
712 | ||
e681b954 | 713 | static int RndisFilterOpenDevice(struct rndis_device *Device) |
fceaf24a | 714 | { |
0120ee0d | 715 | int ret; |
fceaf24a | 716 | |
fceaf24a HJ |
717 | if (Device->State != RNDIS_DEV_INITIALIZED) |
718 | return 0; | |
719 | ||
0120ee0d GKH |
720 | ret = RndisFilterSetPacketFilter(Device, |
721 | NDIS_PACKET_TYPE_BROADCAST | | |
95beae90 | 722 | NDIS_PACKET_TYPE_ALL_MULTICAST | |
0120ee0d | 723 | NDIS_PACKET_TYPE_DIRECTED); |
fceaf24a | 724 | if (ret == 0) |
fceaf24a | 725 | Device->State = RNDIS_DEV_DATAINITIALIZED; |
fceaf24a | 726 | |
fceaf24a HJ |
727 | return ret; |
728 | } | |
729 | ||
e681b954 | 730 | static int RndisFilterCloseDevice(struct rndis_device *Device) |
fceaf24a HJ |
731 | { |
732 | int ret; | |
733 | ||
fceaf24a HJ |
734 | if (Device->State != RNDIS_DEV_DATAINITIALIZED) |
735 | return 0; | |
736 | ||
737 | ret = RndisFilterSetPacketFilter(Device, 0); | |
738 | if (ret == 0) | |
fceaf24a | 739 | Device->State = RNDIS_DEV_INITIALIZED; |
fceaf24a | 740 | |
fceaf24a HJ |
741 | return ret; |
742 | } | |
743 | ||
0120ee0d GKH |
744 | static int RndisFilterOnDeviceAdd(struct hv_device *Device, |
745 | void *AdditionalInfo) | |
fceaf24a HJ |
746 | { |
747 | int ret; | |
ce9ea4cf | 748 | struct netvsc_device *netDevice; |
e681b954 | 749 | struct rndis_device *rndisDevice; |
0120ee0d | 750 | struct netvsc_device_info *deviceInfo = AdditionalInfo; |
fceaf24a | 751 | |
fceaf24a | 752 | rndisDevice = GetRndisDevice(); |
83c720ea | 753 | if (!rndisDevice) |
fceaf24a | 754 | return -1; |
fceaf24a HJ |
755 | |
756 | DPRINT_DBG(NETVSC, "rndis device object allocated - %p", rndisDevice); | |
757 | ||
0120ee0d GKH |
758 | /* |
759 | * Let the inner driver handle this first to create the netvsc channel | |
760 | * NOTE! Once the channel is created, we may get a receive callback | |
761 | * (RndisFilterOnReceive()) before this call is completed | |
762 | */ | |
fceaf24a | 763 | ret = gRndisFilter.InnerDriver.Base.OnDeviceAdd(Device, AdditionalInfo); |
0120ee0d GKH |
764 | if (ret != 0) { |
765 | kfree(rndisDevice); | |
fceaf24a HJ |
766 | return ret; |
767 | } | |
768 | ||
454f18a9 BP |
769 | |
770 | /* Initialize the rndis device */ | |
0120ee0d | 771 | netDevice = Device->Extension; |
45e44314 BP |
772 | /* ASSERT(netDevice); */ |
773 | /* ASSERT(netDevice->Device); */ | |
fceaf24a HJ |
774 | |
775 | netDevice->Extension = rndisDevice; | |
776 | rndisDevice->NetDevice = netDevice; | |
777 | ||
454f18a9 | 778 | /* Send the rndis initialization message */ |
fceaf24a | 779 | ret = RndisFilterInitDevice(rndisDevice); |
0120ee0d GKH |
780 | if (ret != 0) { |
781 | /* | |
782 | * TODO: If rndis init failed, we will need to shut down the | |
783 | * channel | |
784 | */ | |
fceaf24a HJ |
785 | } |
786 | ||
454f18a9 | 787 | /* Get the mac address */ |
fceaf24a | 788 | ret = RndisFilterQueryDeviceMac(rndisDevice); |
0120ee0d GKH |
789 | if (ret != 0) { |
790 | /* | |
791 | * TODO: shutdown rndis device and the channel | |
792 | */ | |
fceaf24a HJ |
793 | } |
794 | ||
9f8bd8ba SH |
795 | DPRINT_INFO(NETVSC, "Device 0x%p mac addr %pM", |
796 | rndisDevice, rndisDevice->HwMacAddr); | |
fceaf24a | 797 | |
9f8bd8ba | 798 | memcpy(deviceInfo->MacAddr, rndisDevice->HwMacAddr, ETH_ALEN); |
fceaf24a HJ |
799 | |
800 | RndisFilterQueryDeviceLinkStatus(rndisDevice); | |
801 | ||
802 | deviceInfo->LinkState = rndisDevice->LinkStatus; | |
0120ee0d GKH |
803 | DPRINT_INFO(NETVSC, "Device 0x%p link state %s", rndisDevice, |
804 | ((deviceInfo->LinkState) ? ("down") : ("up"))); | |
fceaf24a | 805 | |
fceaf24a HJ |
806 | return ret; |
807 | } | |
808 | ||
0120ee0d | 809 | static int RndisFilterOnDeviceRemove(struct hv_device *Device) |
fceaf24a | 810 | { |
ce9ea4cf | 811 | struct netvsc_device *netDevice = Device->Extension; |
0120ee0d | 812 | struct rndis_device *rndisDevice = netDevice->Extension; |
fceaf24a | 813 | |
454f18a9 | 814 | /* Halt and release the rndis device */ |
fceaf24a HJ |
815 | RndisFilterHaltDevice(rndisDevice); |
816 | ||
0120ee0d | 817 | kfree(rndisDevice); |
fceaf24a HJ |
818 | netDevice->Extension = NULL; |
819 | ||
454f18a9 | 820 | /* Pass control to inner driver to remove the device */ |
fceaf24a HJ |
821 | gRndisFilter.InnerDriver.Base.OnDeviceRemove(Device); |
822 | ||
fceaf24a HJ |
823 | return 0; |
824 | } | |
825 | ||
0120ee0d | 826 | static void RndisFilterOnCleanup(struct hv_driver *Driver) |
fceaf24a | 827 | { |
fceaf24a HJ |
828 | } |
829 | ||
2d075346 | 830 | int RndisFilterOnOpen(struct hv_device *Device) |
fceaf24a | 831 | { |
ce9ea4cf | 832 | struct netvsc_device *netDevice = Device->Extension; |
fceaf24a | 833 | |
8a62d716 BP |
834 | if (!netDevice) |
835 | return -EINVAL; | |
836 | ||
83c720ea | 837 | return RndisFilterOpenDevice(netDevice->Extension); |
fceaf24a HJ |
838 | } |
839 | ||
4f28900b | 840 | int RndisFilterOnClose(struct hv_device *Device) |
fceaf24a | 841 | { |
ce9ea4cf | 842 | struct netvsc_device *netDevice = Device->Extension; |
fceaf24a | 843 | |
8a62d716 BP |
844 | if (!netDevice) |
845 | return -EINVAL; | |
846 | ||
83c720ea | 847 | return RndisFilterCloseDevice(netDevice->Extension); |
fceaf24a HJ |
848 | } |
849 | ||
0120ee0d GKH |
850 | static int RndisFilterOnSend(struct hv_device *Device, |
851 | struct hv_netvsc_packet *Packet) | |
fceaf24a | 852 | { |
0120ee0d | 853 | int ret; |
e681b954 | 854 | struct rndis_filter_packet *filterPacket; |
9f33d054 GKH |
855 | struct rndis_message *rndisMessage; |
856 | struct rndis_packet *rndisPacket; | |
4d643114 | 857 | u32 rndisMessageSize; |
fceaf24a | 858 | |
454f18a9 | 859 | /* Add the rndis header */ |
e681b954 | 860 | filterPacket = (struct rndis_filter_packet *)Packet->Extension; |
45e44314 | 861 | /* ASSERT(filterPacket); */ |
fceaf24a | 862 | |
e681b954 | 863 | memset(filterPacket, 0, sizeof(struct rndis_filter_packet)); |
fceaf24a HJ |
864 | |
865 | rndisMessage = &filterPacket->Message; | |
9f33d054 | 866 | rndisMessageSize = RNDIS_MESSAGE_SIZE(struct rndis_packet); |
fceaf24a HJ |
867 | |
868 | rndisMessage->NdisMessageType = REMOTE_NDIS_PACKET_MSG; | |
0120ee0d GKH |
869 | rndisMessage->MessageLength = Packet->TotalDataBufferLength + |
870 | rndisMessageSize; | |
fceaf24a HJ |
871 | |
872 | rndisPacket = &rndisMessage->Message.Packet; | |
9f33d054 | 873 | rndisPacket->DataOffset = sizeof(struct rndis_packet); |
fceaf24a HJ |
874 | rndisPacket->DataLength = Packet->TotalDataBufferLength; |
875 | ||
0e727613 | 876 | Packet->IsDataPacket = true; |
0120ee0d GKH |
877 | Packet->PageBuffers[0].Pfn = virt_to_phys(rndisMessage) >> PAGE_SHIFT; |
878 | Packet->PageBuffers[0].Offset = | |
879 | (unsigned long)rndisMessage & (PAGE_SIZE-1); | |
880 | Packet->PageBuffers[0].Length = rndisMessageSize; | |
fceaf24a | 881 | |
454f18a9 | 882 | /* Save the packet send completion and context */ |
fceaf24a | 883 | filterPacket->OnCompletion = Packet->Completion.Send.OnSendCompletion; |
0120ee0d GKH |
884 | filterPacket->CompletionContext = |
885 | Packet->Completion.Send.SendCompletionContext; | |
fceaf24a | 886 | |
454f18a9 | 887 | /* Use ours */ |
fceaf24a HJ |
888 | Packet->Completion.Send.OnSendCompletion = RndisFilterOnSendCompletion; |
889 | Packet->Completion.Send.SendCompletionContext = filterPacket; | |
890 | ||
891 | ret = gRndisFilter.InnerDriver.OnSend(Device, Packet); | |
0120ee0d GKH |
892 | if (ret != 0) { |
893 | /* | |
894 | * Reset the completion to originals to allow retries from | |
895 | * above | |
896 | */ | |
897 | Packet->Completion.Send.OnSendCompletion = | |
898 | filterPacket->OnCompletion; | |
899 | Packet->Completion.Send.SendCompletionContext = | |
900 | filterPacket->CompletionContext; | |
fceaf24a HJ |
901 | } |
902 | ||
fceaf24a HJ |
903 | return ret; |
904 | } | |
905 | ||
0120ee0d | 906 | static void RndisFilterOnSendCompletion(void *Context) |
fceaf24a | 907 | { |
0120ee0d | 908 | struct rndis_filter_packet *filterPacket = Context; |
fceaf24a | 909 | |
454f18a9 | 910 | /* Pass it back to the original handler */ |
fceaf24a | 911 | filterPacket->OnCompletion(filterPacket->CompletionContext); |
fceaf24a HJ |
912 | } |
913 | ||
914 | ||
0120ee0d | 915 | static void RndisFilterOnSendRequestCompletion(void *Context) |
fceaf24a | 916 | { |
454f18a9 | 917 | /* Noop */ |
fceaf24a | 918 | } |