Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | 5654e93 | 2009-07-14 15:08:20 -0700 | [diff] [blame] | 24 | #include <linux/kernel.h> |
Bill Pemberton | 45da89e | 2009-07-29 17:00:15 -0400 | [diff] [blame] | 25 | #include <linux/highmem.h> |
| 26 | #include <asm/kmap_types.h> |
Greg Kroah-Hartman | fa56d36 | 2009-07-29 15:39:27 -0700 | [diff] [blame] | 27 | #include <asm/io.h> |
Bill Pemberton | 45da89e | 2009-07-29 17:00:15 -0400 | [diff] [blame] | 28 | |
Greg Kroah-Hartman | c86f3e2 | 2009-07-14 10:59:56 -0700 | [diff] [blame] | 29 | #include "include/logging.h" |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 30 | |
Greg Kroah-Hartman | c86f3e2 | 2009-07-14 10:59:56 -0700 | [diff] [blame] | 31 | #include "include/NetVscApi.h" |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 32 | #include "RndisFilter.h" |
| 33 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 34 | |
| 35 | /* Data types */ |
| 36 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 37 | |
| 38 | typedef struct _RNDIS_FILTER_DRIVER_OBJECT { |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 39 | /* The original driver */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 40 | NETVSC_DRIVER_OBJECT InnerDriver; |
| 41 | |
| 42 | } RNDIS_FILTER_DRIVER_OBJECT; |
| 43 | |
| 44 | typedef enum { |
| 45 | RNDIS_DEV_UNINITIALIZED = 0, |
| 46 | RNDIS_DEV_INITIALIZING, |
| 47 | RNDIS_DEV_INITIALIZED, |
| 48 | RNDIS_DEV_DATAINITIALIZED, |
| 49 | } RNDIS_DEVICE_STATE; |
| 50 | |
| 51 | typedef struct _RNDIS_DEVICE { |
Bill Pemberton | d1af1db7 | 2009-07-27 16:47:44 -0400 | [diff] [blame] | 52 | struct NETVSC_DEVICE *NetDevice; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 53 | |
| 54 | RNDIS_DEVICE_STATE State; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 55 | u32 LinkStatus; |
Bill Pemberton | f488841 | 2009-07-29 17:00:12 -0400 | [diff] [blame] | 56 | atomic_t NewRequestId; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 57 | |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 58 | spinlock_t request_lock; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 59 | LIST_ENTRY RequestList; |
| 60 | |
Greg Kroah-Hartman | 5947143 | 2009-07-14 15:10:26 -0700 | [diff] [blame] | 61 | unsigned char HwMacAddr[HW_MACADDR_LEN]; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 62 | } RNDIS_DEVICE; |
| 63 | |
| 64 | |
| 65 | typedef struct _RNDIS_REQUEST { |
| 66 | LIST_ENTRY ListEntry; |
Bill Pemberton | aedb444 | 2009-07-28 13:46:24 -0400 | [diff] [blame] | 67 | struct osd_waitevent *WaitEvent; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 68 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 69 | /* FIXME: We assumed a fixed size response here. If we do ever need to handle a bigger response, */ |
| 70 | /* we can either define a max response message or add a response buffer variable above this field */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 71 | RNDIS_MESSAGE ResponseMessage; |
| 72 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 73 | /* Simplify allocation by having a netvsc packet inline */ |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 74 | struct hv_netvsc_packet Packet; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 75 | PAGE_BUFFER Buffer; |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 76 | /* FIXME: We assumed a fixed size request here. */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 77 | RNDIS_MESSAGE RequestMessage; |
| 78 | } RNDIS_REQUEST; |
| 79 | |
| 80 | |
| 81 | typedef struct _RNDIS_FILTER_PACKET { |
| 82 | void *CompletionContext; |
| 83 | PFN_ON_SENDRECVCOMPLETION OnCompletion; |
| 84 | |
| 85 | RNDIS_MESSAGE Message; |
| 86 | } RNDIS_FILTER_PACKET; |
| 87 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 88 | |
| 89 | /* Internal routines */ |
| 90 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 91 | static int |
| 92 | RndisFilterSendRequest( |
| 93 | RNDIS_DEVICE *Device, |
| 94 | RNDIS_REQUEST *Request |
| 95 | ); |
| 96 | |
| 97 | static void |
| 98 | RndisFilterReceiveResponse( |
| 99 | RNDIS_DEVICE *Device, |
| 100 | RNDIS_MESSAGE *Response |
| 101 | ); |
| 102 | |
| 103 | static void |
| 104 | RndisFilterReceiveIndicateStatus( |
| 105 | RNDIS_DEVICE *Device, |
| 106 | RNDIS_MESSAGE *Response |
| 107 | ); |
| 108 | |
| 109 | static void |
| 110 | RndisFilterReceiveData( |
| 111 | RNDIS_DEVICE *Device, |
| 112 | RNDIS_MESSAGE *Message, |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 113 | struct hv_netvsc_packet *Packet |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 114 | ); |
| 115 | |
| 116 | static int |
| 117 | RndisFilterOnReceive( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 118 | struct hv_device *Device, |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 119 | struct hv_netvsc_packet *Packet |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 120 | ); |
| 121 | |
| 122 | static int |
| 123 | RndisFilterQueryDevice( |
| 124 | RNDIS_DEVICE *Device, |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 125 | u32 Oid, |
Greg Kroah-Hartman | e20f683 | 2009-07-14 15:07:21 -0700 | [diff] [blame] | 126 | void *Result, |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 127 | u32 *ResultSize |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 128 | ); |
| 129 | |
| 130 | static inline int |
| 131 | RndisFilterQueryDeviceMac( |
| 132 | RNDIS_DEVICE *Device |
| 133 | ); |
| 134 | |
| 135 | static inline int |
| 136 | RndisFilterQueryDeviceLinkStatus( |
| 137 | RNDIS_DEVICE *Device |
| 138 | ); |
| 139 | |
| 140 | static int |
| 141 | RndisFilterSetPacketFilter( |
| 142 | RNDIS_DEVICE *Device, |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 143 | u32 NewFilter |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 144 | ); |
| 145 | |
| 146 | static int |
| 147 | RndisFilterInitDevice( |
| 148 | RNDIS_DEVICE *Device |
| 149 | ); |
| 150 | |
| 151 | static int |
| 152 | RndisFilterOpenDevice( |
| 153 | RNDIS_DEVICE *Device |
| 154 | ); |
| 155 | |
| 156 | static int |
| 157 | RndisFilterCloseDevice( |
| 158 | RNDIS_DEVICE *Device |
| 159 | ); |
| 160 | |
| 161 | static int |
| 162 | RndisFilterOnDeviceAdd( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 163 | struct hv_device *Device, |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 164 | void *AdditionalInfo |
| 165 | ); |
| 166 | |
| 167 | static int |
| 168 | RndisFilterOnDeviceRemove( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 169 | struct hv_device *Device |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 170 | ); |
| 171 | |
| 172 | static void |
| 173 | RndisFilterOnCleanup( |
Nicolas Palix | 775ef25 | 2009-07-29 14:09:45 +0200 | [diff] [blame] | 174 | struct hv_driver *Driver |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 175 | ); |
| 176 | |
| 177 | static int |
| 178 | RndisFilterOnOpen( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 179 | struct hv_device *Device |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 180 | ); |
| 181 | |
| 182 | static int |
| 183 | RndisFilterOnClose( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 184 | struct hv_device *Device |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 185 | ); |
| 186 | |
| 187 | static int |
| 188 | RndisFilterOnSend( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 189 | struct hv_device *Device, |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 190 | struct hv_netvsc_packet *Packet |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 191 | ); |
| 192 | |
| 193 | static void |
| 194 | RndisFilterOnSendCompletion( |
| 195 | void *Context |
| 196 | ); |
| 197 | |
| 198 | static void |
| 199 | RndisFilterOnSendRequestCompletion( |
| 200 | void *Context |
| 201 | ); |
| 202 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 203 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 204 | /* Global var */ |
| 205 | |
| 206 | |
| 207 | /* The one and only */ |
Greg Kroah-Hartman | bd1de70 | 2009-07-29 09:04:51 -0700 | [diff] [blame] | 208 | static RNDIS_FILTER_DRIVER_OBJECT gRndisFilter; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 209 | |
| 210 | static inline RNDIS_DEVICE* GetRndisDevice(void) |
| 211 | { |
| 212 | RNDIS_DEVICE *device; |
| 213 | |
Greg Kroah-Hartman | e276a3a | 2009-07-15 12:47:43 -0700 | [diff] [blame] | 214 | device = kzalloc(sizeof(RNDIS_DEVICE), GFP_KERNEL); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 215 | if (!device) |
| 216 | { |
| 217 | return NULL; |
| 218 | } |
| 219 | |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 220 | spin_lock_init(&device->request_lock); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 221 | |
| 222 | INITIALIZE_LIST_HEAD(&device->RequestList); |
| 223 | |
| 224 | device->State = RNDIS_DEV_UNINITIALIZED; |
| 225 | |
| 226 | return device; |
| 227 | } |
| 228 | |
| 229 | static inline void PutRndisDevice(RNDIS_DEVICE *Device) |
| 230 | { |
Greg Kroah-Hartman | 8c69f52 | 2009-07-15 12:48:29 -0700 | [diff] [blame] | 231 | kfree(Device); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 232 | } |
| 233 | |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 234 | static inline RNDIS_REQUEST* GetRndisRequest(RNDIS_DEVICE *Device, u32 MessageType, u32 MessageLength) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 235 | { |
| 236 | RNDIS_REQUEST *request; |
| 237 | RNDIS_MESSAGE *rndisMessage; |
| 238 | RNDIS_SET_REQUEST *set; |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 239 | unsigned long flags; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 240 | |
Greg Kroah-Hartman | e276a3a | 2009-07-15 12:47:43 -0700 | [diff] [blame] | 241 | request = kzalloc(sizeof(RNDIS_REQUEST), GFP_KERNEL); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 242 | if (!request) |
| 243 | { |
| 244 | return NULL; |
| 245 | } |
| 246 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame^] | 247 | request->WaitEvent = osd_WaitEventCreate(); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 248 | if (!request->WaitEvent) |
| 249 | { |
Greg Kroah-Hartman | 8c69f52 | 2009-07-15 12:48:29 -0700 | [diff] [blame] | 250 | kfree(request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 251 | return NULL; |
| 252 | } |
| 253 | |
| 254 | rndisMessage = &request->RequestMessage; |
| 255 | rndisMessage->NdisMessageType = MessageType; |
| 256 | rndisMessage->MessageLength = MessageLength; |
| 257 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 258 | /* Set the request id. This field is always after the rndis header for request/response packet types so */ |
| 259 | /* we just used the SetRequest as a template */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 260 | set = &rndisMessage->Message.SetRequest; |
Bill Pemberton | f488841 | 2009-07-29 17:00:12 -0400 | [diff] [blame] | 261 | set->RequestId = atomic_inc_return(&Device->NewRequestId); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 262 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 263 | /* Add to the request list */ |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 264 | spin_lock_irqsave(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 265 | INSERT_TAIL_LIST(&Device->RequestList, &request->ListEntry); |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 266 | spin_unlock_irqrestore(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 267 | |
| 268 | return request; |
| 269 | } |
| 270 | |
| 271 | static inline void PutRndisRequest(RNDIS_DEVICE *Device, RNDIS_REQUEST *Request) |
| 272 | { |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 273 | unsigned long flags; |
| 274 | |
| 275 | spin_lock_irqsave(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 276 | REMOVE_ENTRY_LIST(&Request->ListEntry); |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 277 | spin_unlock_irqrestore(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 278 | |
Bill Pemberton | 420beac | 2009-07-29 17:00:10 -0400 | [diff] [blame] | 279 | kfree(Request->WaitEvent); |
Greg Kroah-Hartman | 8c69f52 | 2009-07-15 12:48:29 -0700 | [diff] [blame] | 280 | kfree(Request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | static inline void DumpRndisMessage(RNDIS_MESSAGE *RndisMessage) |
| 284 | { |
| 285 | switch (RndisMessage->NdisMessageType) |
| 286 | { |
| 287 | case REMOTE_NDIS_PACKET_MSG: |
| 288 | 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", |
| 289 | RndisMessage->MessageLength, |
| 290 | RndisMessage->Message.Packet.DataOffset, |
| 291 | RndisMessage->Message.Packet.DataLength, |
| 292 | RndisMessage->Message.Packet.NumOOBDataElements, |
| 293 | RndisMessage->Message.Packet.OOBDataOffset, |
| 294 | RndisMessage->Message.Packet.OOBDataLength, |
| 295 | RndisMessage->Message.Packet.PerPacketInfoOffset, |
| 296 | RndisMessage->Message.Packet.PerPacketInfoLength); |
| 297 | break; |
| 298 | |
| 299 | case REMOTE_NDIS_INITIALIZE_CMPLT: |
| 300 | 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)", |
| 301 | RndisMessage->MessageLength, |
| 302 | RndisMessage->Message.InitializeComplete.RequestId, |
| 303 | RndisMessage->Message.InitializeComplete.Status, |
| 304 | RndisMessage->Message.InitializeComplete.MajorVersion, |
| 305 | RndisMessage->Message.InitializeComplete.MinorVersion, |
| 306 | RndisMessage->Message.InitializeComplete.DeviceFlags, |
| 307 | RndisMessage->Message.InitializeComplete.MaxTransferSize, |
| 308 | RndisMessage->Message.InitializeComplete.MaxPacketsPerMessage, |
| 309 | RndisMessage->Message.InitializeComplete.PacketAlignmentFactor); |
| 310 | break; |
| 311 | |
| 312 | case REMOTE_NDIS_QUERY_CMPLT: |
| 313 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_QUERY_CMPLT (len %u, id 0x%x, status 0x%x, buf len %u, buf offset %u)", |
| 314 | RndisMessage->MessageLength, |
| 315 | RndisMessage->Message.QueryComplete.RequestId, |
| 316 | RndisMessage->Message.QueryComplete.Status, |
| 317 | RndisMessage->Message.QueryComplete.InformationBufferLength, |
| 318 | RndisMessage->Message.QueryComplete.InformationBufferOffset); |
| 319 | break; |
| 320 | |
| 321 | case REMOTE_NDIS_SET_CMPLT: |
| 322 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_SET_CMPLT (len %u, id 0x%x, status 0x%x)", |
| 323 | RndisMessage->MessageLength, |
| 324 | RndisMessage->Message.SetComplete.RequestId, |
| 325 | RndisMessage->Message.SetComplete.Status); |
| 326 | break; |
| 327 | |
| 328 | case REMOTE_NDIS_INDICATE_STATUS_MSG: |
| 329 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_INDICATE_STATUS_MSG (len %u, status 0x%x, buf len %u, buf offset %u)", |
| 330 | RndisMessage->MessageLength, |
| 331 | RndisMessage->Message.IndicateStatus.Status, |
| 332 | RndisMessage->Message.IndicateStatus.StatusBufferLength, |
| 333 | RndisMessage->Message.IndicateStatus.StatusBufferOffset); |
| 334 | break; |
| 335 | |
| 336 | default: |
| 337 | DPRINT_DBG(NETVSC, "0x%x (len %u)", |
| 338 | RndisMessage->NdisMessageType, |
| 339 | RndisMessage->MessageLength); |
| 340 | break; |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | static int |
| 345 | RndisFilterSendRequest( |
| 346 | RNDIS_DEVICE *Device, |
| 347 | RNDIS_REQUEST *Request |
| 348 | ) |
| 349 | { |
| 350 | int ret=0; |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 351 | struct hv_netvsc_packet *packet; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 352 | |
| 353 | DPRINT_ENTER(NETVSC); |
| 354 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 355 | /* Setup the packet to send it */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 356 | packet = &Request->Packet; |
| 357 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 358 | packet->IsDataPacket = false; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 359 | packet->TotalDataBufferLength = Request->RequestMessage.MessageLength; |
| 360 | packet->PageBufferCount = 1; |
| 361 | |
Greg Kroah-Hartman | fa56d36 | 2009-07-29 15:39:27 -0700 | [diff] [blame] | 362 | packet->PageBuffers[0].Pfn = virt_to_phys(&Request->RequestMessage) >> PAGE_SHIFT; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 363 | packet->PageBuffers[0].Length = Request->RequestMessage.MessageLength; |
Greg Kroah-Hartman | c4b0bc9 | 2009-07-14 15:12:46 -0700 | [diff] [blame] | 364 | packet->PageBuffers[0].Offset = (unsigned long)&Request->RequestMessage & (PAGE_SIZE -1); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 365 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 366 | packet->Completion.Send.SendCompletionContext = Request;/* packet; */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 367 | packet->Completion.Send.OnSendCompletion = RndisFilterOnSendRequestCompletion; |
Greg Kroah-Hartman | c4b0bc9 | 2009-07-14 15:12:46 -0700 | [diff] [blame] | 368 | packet->Completion.Send.SendCompletionTid = (unsigned long)Device; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 369 | |
| 370 | ret = gRndisFilter.InnerDriver.OnSend(Device->NetDevice->Device, packet); |
| 371 | DPRINT_EXIT(NETVSC); |
| 372 | return ret; |
| 373 | } |
| 374 | |
| 375 | |
| 376 | static void |
| 377 | RndisFilterReceiveResponse( |
| 378 | RNDIS_DEVICE *Device, |
| 379 | RNDIS_MESSAGE *Response |
| 380 | ) |
| 381 | { |
| 382 | LIST_ENTRY *anchor; |
| 383 | LIST_ENTRY *curr; |
| 384 | RNDIS_REQUEST *request=NULL; |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 385 | bool found = false; |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 386 | unsigned long flags; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 387 | |
| 388 | DPRINT_ENTER(NETVSC); |
| 389 | |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 390 | spin_lock_irqsave(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 391 | ITERATE_LIST_ENTRIES(anchor, curr, &Device->RequestList) |
| 392 | { |
| 393 | request = CONTAINING_RECORD(curr, RNDIS_REQUEST, ListEntry); |
| 394 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 395 | /* All request/response message contains RequestId as the 1st field */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 396 | if (request->RequestMessage.Message.InitializeRequest.RequestId == Response->Message.InitializeComplete.RequestId) |
| 397 | { |
| 398 | DPRINT_DBG(NETVSC, "found rndis request for this response (id 0x%x req type 0x%x res type 0x%x)", |
| 399 | request->RequestMessage.Message.InitializeRequest.RequestId, request->RequestMessage.NdisMessageType, Response->NdisMessageType); |
| 400 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 401 | found = true; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 402 | break; |
| 403 | } |
| 404 | } |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 405 | spin_unlock_irqrestore(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 406 | |
| 407 | if (found) |
| 408 | { |
| 409 | if (Response->MessageLength <= sizeof(RNDIS_MESSAGE)) |
| 410 | { |
| 411 | memcpy(&request->ResponseMessage, Response, Response->MessageLength); |
| 412 | } |
| 413 | else |
| 414 | { |
Greg Kroah-Hartman | b7d7ae6 | 2009-07-28 16:18:05 -0700 | [diff] [blame] | 415 | DPRINT_ERR(NETVSC, "rndis response buffer overflow detected (size %u max %zu)", Response->MessageLength, sizeof(RNDIS_FILTER_PACKET)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 416 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 417 | if (Response->NdisMessageType == REMOTE_NDIS_RESET_CMPLT) /* does not have a request id field */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 418 | { |
| 419 | request->ResponseMessage.Message.ResetComplete.Status = STATUS_BUFFER_OVERFLOW; |
| 420 | } |
| 421 | else |
| 422 | { |
| 423 | request->ResponseMessage.Message.InitializeComplete.Status = STATUS_BUFFER_OVERFLOW; |
| 424 | } |
| 425 | } |
| 426 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame^] | 427 | osd_WaitEventSet(request->WaitEvent); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 428 | } |
| 429 | else |
| 430 | { |
| 431 | DPRINT_ERR(NETVSC, "no rndis request found for this response (id 0x%x res type 0x%x)", |
| 432 | Response->Message.InitializeComplete.RequestId, Response->NdisMessageType); |
| 433 | } |
| 434 | |
| 435 | DPRINT_EXIT(NETVSC); |
| 436 | } |
| 437 | |
| 438 | static void |
| 439 | RndisFilterReceiveIndicateStatus( |
| 440 | RNDIS_DEVICE *Device, |
| 441 | RNDIS_MESSAGE *Response |
| 442 | ) |
| 443 | { |
| 444 | RNDIS_INDICATE_STATUS *indicate = &Response->Message.IndicateStatus; |
| 445 | |
| 446 | if (indicate->Status == RNDIS_STATUS_MEDIA_CONNECT) |
| 447 | { |
| 448 | gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 1); |
| 449 | } |
| 450 | else if (indicate->Status == RNDIS_STATUS_MEDIA_DISCONNECT) |
| 451 | { |
| 452 | gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 0); |
| 453 | } |
| 454 | else |
| 455 | { |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 456 | /* TODO: */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 457 | } |
| 458 | } |
| 459 | |
| 460 | static void |
| 461 | RndisFilterReceiveData( |
| 462 | RNDIS_DEVICE *Device, |
| 463 | RNDIS_MESSAGE *Message, |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 464 | struct hv_netvsc_packet *Packet |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 465 | ) |
| 466 | { |
| 467 | RNDIS_PACKET *rndisPacket; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 468 | u32 dataOffset; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 469 | |
| 470 | DPRINT_ENTER(NETVSC); |
| 471 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 472 | /* empty ethernet frame ?? */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 473 | ASSERT(Packet->PageBuffers[0].Length > RNDIS_MESSAGE_SIZE(RNDIS_PACKET)); |
| 474 | |
| 475 | rndisPacket = &Message->Message.Packet; |
| 476 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 477 | /* FIXME: Handle multiple rndis pkt msgs that maybe enclosed in this */ |
| 478 | /* netvsc packet (ie TotalDataBufferLength != MessageLength) */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 479 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 480 | /* Remove the rndis header and pass it back up the stack */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 481 | dataOffset = RNDIS_HEADER_SIZE + rndisPacket->DataOffset; |
| 482 | |
| 483 | Packet->TotalDataBufferLength -= dataOffset; |
| 484 | Packet->PageBuffers[0].Offset += dataOffset; |
| 485 | Packet->PageBuffers[0].Length -= dataOffset; |
| 486 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 487 | Packet->IsDataPacket = true; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 488 | |
| 489 | gRndisFilter.InnerDriver.OnReceiveCallback(Device->NetDevice->Device, Packet); |
| 490 | |
| 491 | DPRINT_EXIT(NETVSC); |
| 492 | } |
| 493 | |
| 494 | static int |
| 495 | RndisFilterOnReceive( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 496 | struct hv_device *Device, |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 497 | struct hv_netvsc_packet *Packet |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 498 | ) |
| 499 | { |
Bill Pemberton | d1af1db7 | 2009-07-27 16:47:44 -0400 | [diff] [blame] | 500 | struct NETVSC_DEVICE *netDevice = (struct NETVSC_DEVICE*)Device->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 501 | RNDIS_DEVICE *rndisDevice; |
| 502 | RNDIS_MESSAGE rndisMessage; |
| 503 | RNDIS_MESSAGE *rndisHeader; |
| 504 | |
| 505 | DPRINT_ENTER(NETVSC); |
| 506 | |
| 507 | ASSERT(netDevice); |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 508 | /* Make sure the rndis device state is initialized */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 509 | if (!netDevice->Extension) |
| 510 | { |
| 511 | DPRINT_ERR(NETVSC, "got rndis message but no rndis device...dropping this message!"); |
| 512 | DPRINT_EXIT(NETVSC); |
| 513 | return -1; |
| 514 | } |
| 515 | |
| 516 | rndisDevice = (RNDIS_DEVICE*)netDevice->Extension; |
| 517 | if (rndisDevice->State == RNDIS_DEV_UNINITIALIZED) |
| 518 | { |
| 519 | DPRINT_ERR(NETVSC, "got rndis message but rndis device uninitialized...dropping this message!"); |
| 520 | DPRINT_EXIT(NETVSC); |
| 521 | return -1; |
| 522 | } |
| 523 | |
Bill Pemberton | 45da89e | 2009-07-29 17:00:15 -0400 | [diff] [blame] | 524 | rndisHeader = (RNDIS_MESSAGE *)kmap_atomic(pfn_to_page(Packet->PageBuffers[0].Pfn), KM_IRQ0); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 525 | |
Greg Kroah-Hartman | c4b0bc9 | 2009-07-14 15:12:46 -0700 | [diff] [blame] | 526 | rndisHeader = (void*)((unsigned long)rndisHeader + Packet->PageBuffers[0].Offset); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 527 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 528 | /* Make sure we got a valid rndis message */ |
| 529 | /* FIXME: There seems to be a bug in set completion msg where its MessageLength is 16 bytes but */ |
| 530 | /* the ByteCount field in the xfer page range shows 52 bytes */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 531 | #if 0 |
| 532 | if ( Packet->TotalDataBufferLength != rndisHeader->MessageLength ) |
| 533 | { |
Bill Pemberton | 45da89e | 2009-07-29 17:00:15 -0400 | [diff] [blame] | 534 | kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset, KM_IRQ0); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 535 | |
| 536 | DPRINT_ERR(NETVSC, "invalid rndis message? (expected %u bytes got %u)...dropping this message!", |
| 537 | rndisHeader->MessageLength, Packet->TotalDataBufferLength); |
| 538 | DPRINT_EXIT(NETVSC); |
| 539 | return -1; |
| 540 | } |
| 541 | #endif |
| 542 | |
| 543 | if ((rndisHeader->NdisMessageType != REMOTE_NDIS_PACKET_MSG) && (rndisHeader->MessageLength > sizeof(RNDIS_MESSAGE))) |
| 544 | { |
Greg Kroah-Hartman | b7d7ae6 | 2009-07-28 16:18:05 -0700 | [diff] [blame] | 545 | DPRINT_ERR(NETVSC, "incoming rndis message buffer overflow detected (got %u, max %zu)...marking it an error!", |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 546 | rndisHeader->MessageLength, sizeof(RNDIS_MESSAGE)); |
| 547 | } |
| 548 | |
| 549 | memcpy(&rndisMessage, rndisHeader, (rndisHeader->MessageLength > sizeof(RNDIS_MESSAGE))?sizeof(RNDIS_MESSAGE):rndisHeader->MessageLength); |
| 550 | |
Bill Pemberton | 45da89e | 2009-07-29 17:00:15 -0400 | [diff] [blame] | 551 | kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset, KM_IRQ0); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 552 | |
| 553 | DumpRndisMessage(&rndisMessage); |
| 554 | |
| 555 | switch (rndisMessage.NdisMessageType) |
| 556 | { |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 557 | /* data msg */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 558 | case REMOTE_NDIS_PACKET_MSG: |
| 559 | RndisFilterReceiveData(rndisDevice, &rndisMessage, Packet); |
| 560 | break; |
| 561 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 562 | /* completion msgs */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 563 | case REMOTE_NDIS_INITIALIZE_CMPLT: |
| 564 | case REMOTE_NDIS_QUERY_CMPLT: |
| 565 | case REMOTE_NDIS_SET_CMPLT: |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 566 | /* case REMOTE_NDIS_RESET_CMPLT: */ |
| 567 | /* case REMOTE_NDIS_KEEPALIVE_CMPLT: */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 568 | RndisFilterReceiveResponse(rndisDevice, &rndisMessage); |
| 569 | break; |
| 570 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 571 | /* notification msgs */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 572 | case REMOTE_NDIS_INDICATE_STATUS_MSG: |
| 573 | RndisFilterReceiveIndicateStatus(rndisDevice, &rndisMessage); |
| 574 | break; |
| 575 | default: |
| 576 | DPRINT_ERR(NETVSC, "unhandled rndis message (type %u len %u)", rndisMessage.NdisMessageType, rndisMessage.MessageLength); |
| 577 | break; |
| 578 | } |
| 579 | |
| 580 | DPRINT_EXIT(NETVSC); |
| 581 | return 0; |
| 582 | } |
| 583 | |
| 584 | |
| 585 | static int |
| 586 | RndisFilterQueryDevice( |
| 587 | RNDIS_DEVICE *Device, |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 588 | u32 Oid, |
Greg Kroah-Hartman | e20f683 | 2009-07-14 15:07:21 -0700 | [diff] [blame] | 589 | void *Result, |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 590 | u32 *ResultSize |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 591 | ) |
| 592 | { |
| 593 | RNDIS_REQUEST *request; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 594 | u32 inresultSize = *ResultSize; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 595 | RNDIS_QUERY_REQUEST *query; |
| 596 | RNDIS_QUERY_COMPLETE *queryComplete; |
| 597 | int ret=0; |
| 598 | |
| 599 | DPRINT_ENTER(NETVSC); |
| 600 | |
| 601 | ASSERT(Result); |
| 602 | |
| 603 | *ResultSize = 0; |
| 604 | request = GetRndisRequest(Device, REMOTE_NDIS_QUERY_MSG, RNDIS_MESSAGE_SIZE(RNDIS_QUERY_REQUEST)); |
| 605 | if (!request) |
| 606 | { |
| 607 | ret = -1; |
| 608 | goto Cleanup; |
| 609 | } |
| 610 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 611 | /* Setup the rndis query */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 612 | query = &request->RequestMessage.Message.QueryRequest; |
| 613 | query->Oid = Oid; |
| 614 | query->InformationBufferOffset = sizeof(RNDIS_QUERY_REQUEST); |
| 615 | query->InformationBufferLength = 0; |
| 616 | query->DeviceVcHandle = 0; |
| 617 | |
| 618 | ret = RndisFilterSendRequest(Device, request); |
| 619 | if (ret != 0) |
| 620 | { |
| 621 | goto Cleanup; |
| 622 | } |
| 623 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame^] | 624 | osd_WaitEventWait(request->WaitEvent); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 625 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 626 | /* Copy the response back */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 627 | queryComplete = &request->ResponseMessage.Message.QueryComplete; |
| 628 | |
| 629 | if (queryComplete->InformationBufferLength > inresultSize) |
| 630 | { |
| 631 | ret = -1; |
| 632 | goto Cleanup; |
| 633 | } |
| 634 | |
| 635 | memcpy(Result, |
Greg Kroah-Hartman | c4b0bc9 | 2009-07-14 15:12:46 -0700 | [diff] [blame] | 636 | (void*)((unsigned long)queryComplete + queryComplete->InformationBufferOffset), |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 637 | queryComplete->InformationBufferLength); |
| 638 | |
| 639 | *ResultSize = queryComplete->InformationBufferLength; |
| 640 | |
| 641 | Cleanup: |
| 642 | if (request) |
| 643 | { |
| 644 | PutRndisRequest(Device, request); |
| 645 | } |
| 646 | DPRINT_EXIT(NETVSC); |
| 647 | |
| 648 | return ret; |
| 649 | } |
| 650 | |
| 651 | static inline int |
| 652 | RndisFilterQueryDeviceMac( |
| 653 | RNDIS_DEVICE *Device |
| 654 | ) |
| 655 | { |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 656 | u32 size=HW_MACADDR_LEN; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 657 | |
| 658 | return RndisFilterQueryDevice(Device, |
| 659 | RNDIS_OID_802_3_PERMANENT_ADDRESS, |
| 660 | Device->HwMacAddr, |
| 661 | &size); |
| 662 | } |
| 663 | |
| 664 | static inline int |
| 665 | RndisFilterQueryDeviceLinkStatus( |
| 666 | RNDIS_DEVICE *Device |
| 667 | ) |
| 668 | { |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 669 | u32 size=sizeof(u32); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 670 | |
| 671 | return RndisFilterQueryDevice(Device, |
| 672 | RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, |
| 673 | &Device->LinkStatus, |
| 674 | &size); |
| 675 | } |
| 676 | |
| 677 | static int |
| 678 | RndisFilterSetPacketFilter( |
| 679 | RNDIS_DEVICE *Device, |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 680 | u32 NewFilter |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 681 | ) |
| 682 | { |
| 683 | RNDIS_REQUEST *request; |
| 684 | RNDIS_SET_REQUEST *set; |
| 685 | RNDIS_SET_COMPLETE *setComplete; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 686 | u32 status; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 687 | int ret; |
| 688 | |
| 689 | DPRINT_ENTER(NETVSC); |
| 690 | |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 691 | ASSERT(RNDIS_MESSAGE_SIZE(RNDIS_SET_REQUEST) + sizeof(u32) <= sizeof(RNDIS_MESSAGE)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 692 | |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 693 | request = GetRndisRequest(Device, REMOTE_NDIS_SET_MSG, RNDIS_MESSAGE_SIZE(RNDIS_SET_REQUEST) + sizeof(u32)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 694 | if (!request) |
| 695 | { |
| 696 | ret = -1; |
| 697 | goto Cleanup; |
| 698 | } |
| 699 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 700 | /* Setup the rndis set */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 701 | set = &request->RequestMessage.Message.SetRequest; |
| 702 | set->Oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 703 | set->InformationBufferLength = sizeof(u32); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 704 | set->InformationBufferOffset = sizeof(RNDIS_SET_REQUEST); |
| 705 | |
Greg Kroah-Hartman | c4b0bc9 | 2009-07-14 15:12:46 -0700 | [diff] [blame] | 706 | memcpy((void*)(unsigned long)set + sizeof(RNDIS_SET_REQUEST), &NewFilter, sizeof(u32)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 707 | |
| 708 | ret = RndisFilterSendRequest(Device, request); |
| 709 | if (ret != 0) |
| 710 | { |
| 711 | goto Cleanup; |
| 712 | } |
| 713 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame^] | 714 | ret = osd_WaitEventWaitEx(request->WaitEvent, 2000/*2sec*/); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 715 | if (!ret) |
| 716 | { |
| 717 | ret = -1; |
| 718 | DPRINT_ERR(NETVSC, "timeout before we got a set response..."); |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 719 | /* We cant deallocate the request since we may still receive a send completion for it. */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 720 | goto Exit; |
| 721 | } |
| 722 | else |
| 723 | { |
| 724 | if (ret > 0) |
| 725 | { |
| 726 | ret = 0; |
| 727 | } |
| 728 | setComplete = &request->ResponseMessage.Message.SetComplete; |
| 729 | status = setComplete->Status; |
| 730 | } |
| 731 | |
| 732 | Cleanup: |
| 733 | if (request) |
| 734 | { |
| 735 | PutRndisRequest(Device, request); |
| 736 | } |
| 737 | Exit: |
| 738 | DPRINT_EXIT(NETVSC); |
| 739 | |
| 740 | return ret; |
| 741 | } |
| 742 | |
| 743 | int |
| 744 | RndisFilterInit( |
| 745 | NETVSC_DRIVER_OBJECT *Driver |
| 746 | ) |
| 747 | { |
| 748 | DPRINT_ENTER(NETVSC); |
| 749 | |
Greg Kroah-Hartman | b7d7ae6 | 2009-07-28 16:18:05 -0700 | [diff] [blame] | 750 | DPRINT_DBG(NETVSC, "sizeof(RNDIS_FILTER_PACKET) == %zd", sizeof(RNDIS_FILTER_PACKET)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 751 | |
| 752 | Driver->RequestExtSize = sizeof(RNDIS_FILTER_PACKET); |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 753 | Driver->AdditionalRequestPageBufferCount = 1; /* For rndis header */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 754 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 755 | /* Driver->Context = rndisDriver; */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 756 | |
| 757 | memset(&gRndisFilter, 0, sizeof(RNDIS_FILTER_DRIVER_OBJECT)); |
| 758 | |
| 759 | /*rndisDriver->Driver = Driver; |
| 760 | |
| 761 | ASSERT(Driver->OnLinkStatusChanged); |
| 762 | rndisDriver->OnLinkStatusChanged = Driver->OnLinkStatusChanged;*/ |
| 763 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 764 | /* Save the original dispatch handlers before we override it */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 765 | gRndisFilter.InnerDriver.Base.OnDeviceAdd = Driver->Base.OnDeviceAdd; |
| 766 | gRndisFilter.InnerDriver.Base.OnDeviceRemove = Driver->Base.OnDeviceRemove; |
| 767 | gRndisFilter.InnerDriver.Base.OnCleanup = Driver->Base.OnCleanup; |
| 768 | |
| 769 | ASSERT(Driver->OnSend); |
| 770 | ASSERT(Driver->OnReceiveCallback); |
| 771 | gRndisFilter.InnerDriver.OnSend = Driver->OnSend; |
| 772 | gRndisFilter.InnerDriver.OnReceiveCallback = Driver->OnReceiveCallback; |
| 773 | gRndisFilter.InnerDriver.OnLinkStatusChanged = Driver->OnLinkStatusChanged; |
| 774 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 775 | /* Override */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 776 | Driver->Base.OnDeviceAdd = RndisFilterOnDeviceAdd; |
| 777 | Driver->Base.OnDeviceRemove = RndisFilterOnDeviceRemove; |
| 778 | Driver->Base.OnCleanup = RndisFilterOnCleanup; |
| 779 | Driver->OnSend = RndisFilterOnSend; |
| 780 | Driver->OnOpen = RndisFilterOnOpen; |
| 781 | Driver->OnClose = RndisFilterOnClose; |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 782 | /* Driver->QueryLinkStatus = RndisFilterQueryDeviceLinkStatus; */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 783 | Driver->OnReceiveCallback = RndisFilterOnReceive; |
| 784 | |
| 785 | DPRINT_EXIT(NETVSC); |
| 786 | |
| 787 | return 0; |
| 788 | } |
| 789 | |
| 790 | static int |
| 791 | RndisFilterInitDevice( |
| 792 | RNDIS_DEVICE *Device |
| 793 | ) |
| 794 | { |
| 795 | RNDIS_REQUEST *request; |
| 796 | RNDIS_INITIALIZE_REQUEST *init; |
| 797 | RNDIS_INITIALIZE_COMPLETE *initComplete; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 798 | u32 status; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 799 | int ret; |
| 800 | |
| 801 | DPRINT_ENTER(NETVSC); |
| 802 | |
| 803 | request = GetRndisRequest(Device, REMOTE_NDIS_INITIALIZE_MSG, RNDIS_MESSAGE_SIZE(RNDIS_INITIALIZE_REQUEST)); |
| 804 | if (!request) |
| 805 | { |
| 806 | ret = -1; |
| 807 | goto Cleanup; |
| 808 | } |
| 809 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 810 | /* Setup the rndis set */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 811 | init = &request->RequestMessage.Message.InitializeRequest; |
| 812 | init->MajorVersion = RNDIS_MAJOR_VERSION; |
| 813 | init->MinorVersion = RNDIS_MINOR_VERSION; |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 814 | init->MaxTransferSize = 2048; /* FIXME: Use 1536 - rounded ethernet frame size */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 815 | |
| 816 | Device->State = RNDIS_DEV_INITIALIZING; |
| 817 | |
| 818 | ret = RndisFilterSendRequest(Device, request); |
| 819 | if (ret != 0) |
| 820 | { |
| 821 | Device->State = RNDIS_DEV_UNINITIALIZED; |
| 822 | goto Cleanup; |
| 823 | } |
| 824 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame^] | 825 | osd_WaitEventWait(request->WaitEvent); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 826 | |
| 827 | initComplete = &request->ResponseMessage.Message.InitializeComplete; |
| 828 | status = initComplete->Status; |
| 829 | if (status == RNDIS_STATUS_SUCCESS) |
| 830 | { |
| 831 | Device->State = RNDIS_DEV_INITIALIZED; |
| 832 | ret = 0; |
| 833 | } |
| 834 | else |
| 835 | { |
| 836 | Device->State = RNDIS_DEV_UNINITIALIZED; |
| 837 | ret = -1; |
| 838 | } |
| 839 | |
| 840 | Cleanup: |
| 841 | if (request) |
| 842 | { |
| 843 | PutRndisRequest(Device, request); |
| 844 | } |
| 845 | DPRINT_EXIT(NETVSC); |
| 846 | |
| 847 | return ret; |
| 848 | } |
| 849 | |
| 850 | static void |
| 851 | RndisFilterHaltDevice( |
| 852 | RNDIS_DEVICE *Device |
| 853 | ) |
| 854 | { |
| 855 | RNDIS_REQUEST *request; |
| 856 | RNDIS_HALT_REQUEST *halt; |
| 857 | |
| 858 | DPRINT_ENTER(NETVSC); |
| 859 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 860 | /* Attempt to do a rndis device halt */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 861 | request = GetRndisRequest(Device, REMOTE_NDIS_HALT_MSG, RNDIS_MESSAGE_SIZE(RNDIS_HALT_REQUEST)); |
| 862 | if (!request) |
| 863 | { |
| 864 | goto Cleanup; |
| 865 | } |
| 866 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 867 | /* Setup the rndis set */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 868 | halt = &request->RequestMessage.Message.HaltRequest; |
Bill Pemberton | f488841 | 2009-07-29 17:00:12 -0400 | [diff] [blame] | 869 | halt->RequestId = atomic_inc_return(&Device->NewRequestId); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 870 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 871 | /* Ignore return since this msg is optional. */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 872 | RndisFilterSendRequest(Device, request); |
| 873 | |
| 874 | Device->State = RNDIS_DEV_UNINITIALIZED; |
| 875 | |
| 876 | Cleanup: |
| 877 | if (request) |
| 878 | { |
| 879 | PutRndisRequest(Device, request); |
| 880 | } |
| 881 | DPRINT_EXIT(NETVSC); |
| 882 | return; |
| 883 | } |
| 884 | |
| 885 | |
| 886 | static int |
| 887 | RndisFilterOpenDevice( |
| 888 | RNDIS_DEVICE *Device |
| 889 | ) |
| 890 | { |
| 891 | int ret=0; |
| 892 | |
| 893 | DPRINT_ENTER(NETVSC); |
| 894 | |
| 895 | if (Device->State != RNDIS_DEV_INITIALIZED) |
| 896 | return 0; |
| 897 | |
| 898 | ret = RndisFilterSetPacketFilter(Device, NDIS_PACKET_TYPE_BROADCAST|NDIS_PACKET_TYPE_DIRECTED); |
| 899 | if (ret == 0) |
| 900 | { |
| 901 | Device->State = RNDIS_DEV_DATAINITIALIZED; |
| 902 | } |
| 903 | |
| 904 | DPRINT_EXIT(NETVSC); |
| 905 | return ret; |
| 906 | } |
| 907 | |
| 908 | static int |
| 909 | RndisFilterCloseDevice( |
| 910 | RNDIS_DEVICE *Device |
| 911 | ) |
| 912 | { |
| 913 | int ret; |
| 914 | |
| 915 | DPRINT_ENTER(NETVSC); |
| 916 | |
| 917 | if (Device->State != RNDIS_DEV_DATAINITIALIZED) |
| 918 | return 0; |
| 919 | |
| 920 | ret = RndisFilterSetPacketFilter(Device, 0); |
| 921 | if (ret == 0) |
| 922 | { |
| 923 | Device->State = RNDIS_DEV_INITIALIZED; |
| 924 | } |
| 925 | |
| 926 | DPRINT_EXIT(NETVSC); |
| 927 | |
| 928 | return ret; |
| 929 | } |
| 930 | |
| 931 | |
Greg Kroah-Hartman | bd1de70 | 2009-07-29 09:04:51 -0700 | [diff] [blame] | 932 | static int |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 933 | RndisFilterOnDeviceAdd( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 934 | struct hv_device *Device, |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 935 | void *AdditionalInfo |
| 936 | ) |
| 937 | { |
| 938 | int ret; |
Bill Pemberton | d1af1db7 | 2009-07-27 16:47:44 -0400 | [diff] [blame] | 939 | struct NETVSC_DEVICE *netDevice; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 940 | RNDIS_DEVICE *rndisDevice; |
| 941 | NETVSC_DEVICE_INFO *deviceInfo = (NETVSC_DEVICE_INFO*)AdditionalInfo; |
| 942 | |
| 943 | DPRINT_ENTER(NETVSC); |
| 944 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 945 | rndisDevice = GetRndisDevice(); |
| 946 | if (!rndisDevice) |
| 947 | { |
| 948 | DPRINT_EXIT(NETVSC); |
| 949 | return -1; |
| 950 | } |
| 951 | |
| 952 | DPRINT_DBG(NETVSC, "rndis device object allocated - %p", rndisDevice); |
| 953 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 954 | /* Let the inner driver handle this first to create the netvsc channel */ |
| 955 | /* NOTE! Once the channel is created, we may get a receive callback */ |
| 956 | /* (RndisFilterOnReceive()) before this call is completed */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 957 | ret = gRndisFilter.InnerDriver.Base.OnDeviceAdd(Device, AdditionalInfo); |
| 958 | if (ret != 0) |
| 959 | { |
| 960 | PutRndisDevice(rndisDevice); |
| 961 | DPRINT_EXIT(NETVSC); |
| 962 | return ret; |
| 963 | } |
| 964 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 965 | |
| 966 | /* Initialize the rndis device */ |
| 967 | |
Bill Pemberton | d1af1db7 | 2009-07-27 16:47:44 -0400 | [diff] [blame] | 968 | netDevice = (struct NETVSC_DEVICE*)Device->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 969 | ASSERT(netDevice); |
| 970 | ASSERT(netDevice->Device); |
| 971 | |
| 972 | netDevice->Extension = rndisDevice; |
| 973 | rndisDevice->NetDevice = netDevice; |
| 974 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 975 | /* Send the rndis initialization message */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 976 | ret = RndisFilterInitDevice(rndisDevice); |
| 977 | if (ret != 0) |
| 978 | { |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 979 | /* TODO: If rndis init failed, we will need to shut down the channel */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 980 | } |
| 981 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 982 | /* Get the mac address */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 983 | ret = RndisFilterQueryDeviceMac(rndisDevice); |
| 984 | if (ret != 0) |
| 985 | { |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 986 | /* TODO: shutdown rndis device and the channel */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 987 | } |
| 988 | |
| 989 | DPRINT_INFO(NETVSC, "Device 0x%p mac addr %02x%02x%02x%02x%02x%02x", |
| 990 | rndisDevice, |
| 991 | rndisDevice->HwMacAddr[0], |
| 992 | rndisDevice->HwMacAddr[1], |
| 993 | rndisDevice->HwMacAddr[2], |
| 994 | rndisDevice->HwMacAddr[3], |
| 995 | rndisDevice->HwMacAddr[4], |
| 996 | rndisDevice->HwMacAddr[5]); |
| 997 | |
| 998 | memcpy(deviceInfo->MacAddr, rndisDevice->HwMacAddr, HW_MACADDR_LEN); |
| 999 | |
| 1000 | RndisFilterQueryDeviceLinkStatus(rndisDevice); |
| 1001 | |
| 1002 | deviceInfo->LinkState = rndisDevice->LinkStatus; |
| 1003 | DPRINT_INFO(NETVSC, "Device 0x%p link state %s", rndisDevice, ((deviceInfo->LinkState)?("down"):("up"))); |
| 1004 | |
| 1005 | DPRINT_EXIT(NETVSC); |
| 1006 | |
| 1007 | return ret; |
| 1008 | } |
| 1009 | |
| 1010 | |
| 1011 | static int |
| 1012 | RndisFilterOnDeviceRemove( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 1013 | struct hv_device *Device |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1014 | ) |
| 1015 | { |
Bill Pemberton | d1af1db7 | 2009-07-27 16:47:44 -0400 | [diff] [blame] | 1016 | struct NETVSC_DEVICE *netDevice = (struct NETVSC_DEVICE*)Device->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1017 | RNDIS_DEVICE *rndisDevice = (RNDIS_DEVICE*)netDevice->Extension; |
| 1018 | |
| 1019 | DPRINT_ENTER(NETVSC); |
| 1020 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1021 | /* Halt and release the rndis device */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1022 | RndisFilterHaltDevice(rndisDevice); |
| 1023 | |
| 1024 | PutRndisDevice(rndisDevice); |
| 1025 | netDevice->Extension = NULL; |
| 1026 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1027 | /* Pass control to inner driver to remove the device */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1028 | gRndisFilter.InnerDriver.Base.OnDeviceRemove(Device); |
| 1029 | |
| 1030 | DPRINT_EXIT(NETVSC); |
| 1031 | |
| 1032 | return 0; |
| 1033 | } |
| 1034 | |
| 1035 | |
| 1036 | static void |
| 1037 | RndisFilterOnCleanup( |
Nicolas Palix | 775ef25 | 2009-07-29 14:09:45 +0200 | [diff] [blame] | 1038 | struct hv_driver *Driver |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1039 | ) |
| 1040 | { |
| 1041 | DPRINT_ENTER(NETVSC); |
| 1042 | |
| 1043 | DPRINT_EXIT(NETVSC); |
| 1044 | } |
| 1045 | |
| 1046 | static int |
| 1047 | RndisFilterOnOpen( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 1048 | struct hv_device *Device |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1049 | ) |
| 1050 | { |
| 1051 | int ret; |
Bill Pemberton | d1af1db7 | 2009-07-27 16:47:44 -0400 | [diff] [blame] | 1052 | struct NETVSC_DEVICE *netDevice = (struct NETVSC_DEVICE*)Device->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1053 | |
| 1054 | DPRINT_ENTER(NETVSC); |
| 1055 | |
| 1056 | ASSERT(netDevice); |
| 1057 | ret = RndisFilterOpenDevice((RNDIS_DEVICE*)netDevice->Extension); |
| 1058 | |
| 1059 | DPRINT_EXIT(NETVSC); |
| 1060 | |
| 1061 | return ret; |
| 1062 | } |
| 1063 | |
| 1064 | static int |
| 1065 | RndisFilterOnClose( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 1066 | struct hv_device *Device |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1067 | ) |
| 1068 | { |
| 1069 | int ret; |
Bill Pemberton | d1af1db7 | 2009-07-27 16:47:44 -0400 | [diff] [blame] | 1070 | struct NETVSC_DEVICE *netDevice = (struct NETVSC_DEVICE*)Device->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1071 | |
| 1072 | DPRINT_ENTER(NETVSC); |
| 1073 | |
| 1074 | ASSERT(netDevice); |
| 1075 | ret = RndisFilterCloseDevice((RNDIS_DEVICE*)netDevice->Extension); |
| 1076 | |
| 1077 | DPRINT_EXIT(NETVSC); |
| 1078 | |
| 1079 | return ret; |
| 1080 | } |
| 1081 | |
| 1082 | |
| 1083 | static int |
| 1084 | RndisFilterOnSend( |
Nicolas Palix | 3d3b551 | 2009-07-28 17:32:53 +0200 | [diff] [blame] | 1085 | struct hv_device *Device, |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 1086 | struct hv_netvsc_packet *Packet |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1087 | ) |
| 1088 | { |
| 1089 | int ret=0; |
| 1090 | RNDIS_FILTER_PACKET *filterPacket; |
| 1091 | RNDIS_MESSAGE *rndisMessage; |
| 1092 | RNDIS_PACKET *rndisPacket; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 1093 | u32 rndisMessageSize; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1094 | |
| 1095 | DPRINT_ENTER(NETVSC); |
| 1096 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1097 | /* Add the rndis header */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1098 | filterPacket = (RNDIS_FILTER_PACKET*)Packet->Extension; |
| 1099 | ASSERT(filterPacket); |
| 1100 | |
| 1101 | memset(filterPacket, 0, sizeof(RNDIS_FILTER_PACKET)); |
| 1102 | |
| 1103 | rndisMessage = &filterPacket->Message; |
| 1104 | rndisMessageSize = RNDIS_MESSAGE_SIZE(RNDIS_PACKET); |
| 1105 | |
| 1106 | rndisMessage->NdisMessageType = REMOTE_NDIS_PACKET_MSG; |
| 1107 | rndisMessage->MessageLength = Packet->TotalDataBufferLength + rndisMessageSize; |
| 1108 | |
| 1109 | rndisPacket = &rndisMessage->Message.Packet; |
| 1110 | rndisPacket->DataOffset = sizeof(RNDIS_PACKET); |
| 1111 | rndisPacket->DataLength = Packet->TotalDataBufferLength; |
| 1112 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 1113 | Packet->IsDataPacket = true; |
Greg Kroah-Hartman | fa56d36 | 2009-07-29 15:39:27 -0700 | [diff] [blame] | 1114 | Packet->PageBuffers[0].Pfn = virt_to_phys(rndisMessage) >> PAGE_SHIFT; |
Greg Kroah-Hartman | c4b0bc9 | 2009-07-14 15:12:46 -0700 | [diff] [blame] | 1115 | Packet->PageBuffers[0].Offset = (unsigned long)rndisMessage & (PAGE_SIZE-1); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1116 | Packet->PageBuffers[0].Length = rndisMessageSize; |
| 1117 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1118 | /* Save the packet send completion and context */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1119 | filterPacket->OnCompletion = Packet->Completion.Send.OnSendCompletion; |
| 1120 | filterPacket->CompletionContext = Packet->Completion.Send.SendCompletionContext; |
| 1121 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1122 | /* Use ours */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1123 | Packet->Completion.Send.OnSendCompletion = RndisFilterOnSendCompletion; |
| 1124 | Packet->Completion.Send.SendCompletionContext = filterPacket; |
| 1125 | |
| 1126 | ret = gRndisFilter.InnerDriver.OnSend(Device, Packet); |
| 1127 | if (ret != 0) |
| 1128 | { |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1129 | /* Reset the completion to originals to allow retries from above */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1130 | Packet->Completion.Send.OnSendCompletion = filterPacket->OnCompletion; |
| 1131 | Packet->Completion.Send.SendCompletionContext = filterPacket->CompletionContext; |
| 1132 | } |
| 1133 | |
| 1134 | DPRINT_EXIT(NETVSC); |
| 1135 | |
| 1136 | return ret; |
| 1137 | } |
| 1138 | |
| 1139 | static void |
| 1140 | RndisFilterOnSendCompletion( |
| 1141 | void *Context) |
| 1142 | { |
| 1143 | RNDIS_FILTER_PACKET *filterPacket = (RNDIS_FILTER_PACKET *)Context; |
| 1144 | |
| 1145 | DPRINT_ENTER(NETVSC); |
| 1146 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1147 | /* Pass it back to the original handler */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1148 | filterPacket->OnCompletion(filterPacket->CompletionContext); |
| 1149 | |
| 1150 | DPRINT_EXIT(NETVSC); |
| 1151 | } |
| 1152 | |
| 1153 | |
| 1154 | static void |
| 1155 | RndisFilterOnSendRequestCompletion( |
| 1156 | void *Context |
| 1157 | ) |
| 1158 | { |
| 1159 | DPRINT_ENTER(NETVSC); |
| 1160 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1161 | /* Noop */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1162 | DPRINT_EXIT(NETVSC); |
| 1163 | } |