LUFA/Drivers/USB/Class/Device/RNDIS.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2010.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 #define  __INCLUDE_FROM_USB_DRIVER
  32 #include "../../HighLevel/USBMode.h"
  33 #if defined(USB_CAN_BE_DEVICE)
  34
  35 #define  __INCLUDE_FROM_RNDIS_CLASS_DEVICE_C
  36 #define  __INCLUDE_FROM_RNDIS_DRIVER
  37 #include "RNDIS.h"
  38
  39 static const uint32_t PROGMEM AdapterSupportedOIDList[]  =
  40         {
  41                 OID_GEN_SUPPORTED_LIST,
  42                 OID_GEN_PHYSICAL_MEDIUM,
  43                 OID_GEN_HARDWARE_STATUS,
  44                 OID_GEN_MEDIA_SUPPORTED,
  45                 OID_GEN_MEDIA_IN_USE,
  46                 OID_GEN_MAXIMUM_FRAME_SIZE,
  47                 OID_GEN_MAXIMUM_TOTAL_SIZE,
  48                 OID_GEN_LINK_SPEED,
  49                 OID_GEN_TRANSMIT_BLOCK_SIZE,
  50                 OID_GEN_RECEIVE_BLOCK_SIZE,
  51                 OID_GEN_VENDOR_ID,
  52                 OID_GEN_VENDOR_DESCRIPTION,
  53                 OID_GEN_CURRENT_PACKET_FILTER,
  54                 OID_GEN_MAXIMUM_TOTAL_SIZE,
  55                 OID_GEN_MEDIA_CONNECT_STATUS,
  56                 OID_GEN_XMIT_OK,
  57                 OID_GEN_RCV_OK,
  58                 OID_GEN_XMIT_ERROR,
  59                 OID_GEN_RCV_ERROR,
  60                 OID_GEN_RCV_NO_BUFFER,
  61                 OID_802_3_PERMANENT_ADDRESS,
  62                 OID_802_3_CURRENT_ADDRESS,
  63                 OID_802_3_MULTICAST_LIST,
  64                 OID_802_3_MAXIMUM_LIST_SIZE,
  65                 OID_802_3_RCV_ERROR_ALIGNMENT,
  66                 OID_802_3_XMIT_ONE_COLLISION,
  67                 OID_802_3_XMIT_MORE_COLLISIONS,
  68         };
  69
  70 void RNDIS_Device_ProcessControlRequest(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo)
  71 {
  72         if (!(Endpoint_IsSETUPReceived()))
  73           return;
  74
  75         if (USB_ControlRequest.wIndex != RNDISInterfaceInfo->Config.ControlInterfaceNumber)
  76           return;
  77
  78         switch (USB_ControlRequest.bRequest)
  79         {
  80                 case RNDIS_REQ_SendEncapsulatedCommand:
  81                         if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
  82                         {
  83                                 Endpoint_ClearSETUP();
  84                                 Endpoint_Read_Control_Stream_LE(RNDISInterfaceInfo->State.RNDISMessageBuffer, USB_ControlRequest.wLength);
  85                                 Endpoint_ClearIN();
  86
  87                                 RNDIS_Device_ProcessRNDISControlMessage(RNDISInterfaceInfo);
  88                         }
  89
  90                         break;
  91                 case RNDIS_REQ_GetEncapsulatedResponse:
  92                         if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
  93                         {
  94                                 RNDIS_Message_Header_t* MessageHeader = (RNDIS_Message_Header_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
  95
  96                                 if (!(MessageHeader->MessageLength))
  97                                 {
  98                                         RNDISInterfaceInfo->State.RNDISMessageBuffer[0] = 0;
  99                                         MessageHeader->MessageLength = 1;
 100                                 }
 101
 102                                 Endpoint_ClearSETUP();
 103                                 Endpoint_Write_Control_Stream_LE(RNDISInterfaceInfo->State.RNDISMessageBuffer, MessageHeader->MessageLength);
 104                                 Endpoint_ClearOUT();
 105
 106                                 MessageHeader->MessageLength = 0;
 107                         }
 108
 109                         break;
 110         }
 111 }
 112
 113 bool RNDIS_Device_ConfigureEndpoints(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo)
 114 {
 115         memset(&RNDISInterfaceInfo->State, 0x00, sizeof(RNDISInterfaceInfo->State));
 116
 117         for (uint8_t EndpointNum = 1; EndpointNum < ENDPOINT_TOTAL_ENDPOINTS; EndpointNum++)
 118         {
 119                 uint16_t Size;
 120                 uint8_t  Type;
 121                 uint8_t  Direction;
 122                 bool     DoubleBanked;
 123
 124                 if (EndpointNum == RNDISInterfaceInfo->Config.DataINEndpointNumber)
 125                 {
 126                         Size         = RNDISInterfaceInfo->Config.DataINEndpointSize;
 127                         Direction    = ENDPOINT_DIR_IN;
 128                         Type         = EP_TYPE_BULK;
 129                         DoubleBanked = RNDISInterfaceInfo->Config.DataINEndpointDoubleBank;
 130                 }
 131                 else if (EndpointNum == RNDISInterfaceInfo->Config.DataOUTEndpointNumber)
 132                 {
 133                         Size         = RNDISInterfaceInfo->Config.DataOUTEndpointSize;
 134                         Direction    = ENDPOINT_DIR_OUT;
 135                         Type         = EP_TYPE_BULK;
 136                         DoubleBanked = RNDISInterfaceInfo->Config.DataOUTEndpointDoubleBank;
 137                 }
 138                 else if (EndpointNum == RNDISInterfaceInfo->Config.NotificationEndpointNumber)
 139                 {
 140                         Size         = RNDISInterfaceInfo->Config.NotificationEndpointSize;
 141                         Direction    = ENDPOINT_DIR_IN;
 142                         Type         = EP_TYPE_INTERRUPT;
 143                         DoubleBanked = RNDISInterfaceInfo->Config.NotificationEndpointDoubleBank;
 144                 }
 145                 else
 146                 {
 147                         continue;
 148                 }
 149
 150                 if (!(Endpoint_ConfigureEndpoint(EndpointNum, Type, Direction, Size,
 151                                                                                  DoubleBanked ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE)))
 152                 {
 153                         return false;
 154                 }
 155         }
 156
 157         return true;
 158 }
 159
 160 void RNDIS_Device_USBTask(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo)
 161 {
 162         if (USB_DeviceState != DEVICE_STATE_Configured)
 163           return;
 164
 165         RNDIS_Message_Header_t* MessageHeader = (RNDIS_Message_Header_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
 166
 167         Endpoint_SelectEndpoint(RNDISInterfaceInfo->Config.NotificationEndpointNumber);
 168
 169         if (Endpoint_IsINReady() && RNDISInterfaceInfo->State.ResponseReady)
 170         {
 171                 USB_Request_Header_t Notification = (USB_Request_Header_t)
 172                         {
 173                                 .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
 174                                 .bRequest      = RNDIS_NOTIF_ResponseAvailable,
 175                                 .wValue        = 0,
 176                                 .wIndex        = 0,
 177                                 .wLength       = 0,
 178                         };
 179
 180                 Endpoint_Write_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NO_STREAM_CALLBACK);
 181
 182                 Endpoint_ClearIN();
 183
 184                 RNDISInterfaceInfo->State.ResponseReady = false;
 185         }
 186
 187         if ((RNDISInterfaceInfo->State.CurrRNDISState == RNDIS_Data_Initialized) && !(MessageHeader->MessageLength))
 188         {
 189                 RNDIS_Packet_Message_t RNDISPacketHeader;
 190
 191                 Endpoint_SelectEndpoint(RNDISInterfaceInfo->Config.DataOUTEndpointNumber);
 192
 193                 if (Endpoint_IsOUTReceived() && !(RNDISInterfaceInfo->State.FrameIN.FrameInBuffer))
 194                 {
 195                         Endpoint_Read_Stream_LE(&RNDISPacketHeader, sizeof(RNDIS_Packet_Message_t), NO_STREAM_CALLBACK);
 196
 197                         if (RNDISPacketHeader.DataLength > ETHERNET_FRAME_SIZE_MAX)
 198                         {
 199                                 Endpoint_StallTransaction();
 200                                 return;
 201                         }
 202
 203                         Endpoint_Read_Stream_LE(RNDISInterfaceInfo->State.FrameIN.FrameData, RNDISPacketHeader.DataLength, NO_STREAM_CALLBACK);
 204
 205                         Endpoint_ClearOUT();
 206
 207                         RNDISInterfaceInfo->State.FrameIN.FrameLength = RNDISPacketHeader.DataLength;
 208
 209                         RNDISInterfaceInfo->State.FrameIN.FrameInBuffer = true;
 210                 }
 211
 212                 Endpoint_SelectEndpoint(RNDISInterfaceInfo->Config.DataINEndpointNumber);
 213
 214                 if (Endpoint_IsINReady() && RNDISInterfaceInfo->State.FrameOUT.FrameInBuffer)
 215                 {
 216                         memset(&RNDISPacketHeader, 0, sizeof(RNDIS_Packet_Message_t));
 217
 218                         RNDISPacketHeader.MessageType   = REMOTE_NDIS_PACKET_MSG;
 219                         RNDISPacketHeader.MessageLength = (sizeof(RNDIS_Packet_Message_t) + RNDISInterfaceInfo->State.FrameOUT.FrameLength);
 220                         RNDISPacketHeader.DataOffset    = (sizeof(RNDIS_Packet_Message_t) - sizeof(RNDIS_Message_Header_t));
 221                         RNDISPacketHeader.DataLength    = RNDISInterfaceInfo->State.FrameOUT.FrameLength;
 222
 223                         Endpoint_Write_Stream_LE(&RNDISPacketHeader, sizeof(RNDIS_Packet_Message_t), NO_STREAM_CALLBACK);
 224                         Endpoint_Write_Stream_LE(RNDISInterfaceInfo->State.FrameOUT.FrameData, RNDISPacketHeader.DataLength, NO_STREAM_CALLBACK);
 225                         Endpoint_ClearIN();
 226
 227                         RNDISInterfaceInfo->State.FrameOUT.FrameInBuffer = false;
 228                 }
 229         }
 230 }
 231
 232 void RNDIS_Device_ProcessRNDISControlMessage(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo)
 233 {
 234         /* Note: Only a single buffer is used for both the received message and its response to save SRAM. Because of
 235                  this, response bytes should be filled in order so that they do not clobber unread data in the buffer. */
 236
 237         RNDIS_Message_Header_t* MessageHeader = (RNDIS_Message_Header_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
 238
 239         switch (MessageHeader->MessageType)
 240         {
 241                 case REMOTE_NDIS_INITIALIZE_MSG:
 242                         RNDISInterfaceInfo->State.ResponseReady = true;
 243
 244                         RNDIS_Initialize_Message_t*  INITIALIZE_Message  =
 245                                        (RNDIS_Initialize_Message_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
 246                         RNDIS_Initialize_Complete_t* INITIALIZE_Response =
 247                                        (RNDIS_Initialize_Complete_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
 248
 249                         INITIALIZE_Response->MessageType           = REMOTE_NDIS_INITIALIZE_CMPLT;
 250                         INITIALIZE_Response->MessageLength         = sizeof(RNDIS_Initialize_Complete_t);
 251                         INITIALIZE_Response->RequestId             = INITIALIZE_Message->RequestId;
 252                         INITIALIZE_Response->Status                = REMOTE_NDIS_STATUS_SUCCESS;
 253
 254                         INITIALIZE_Response->MajorVersion          = REMOTE_NDIS_VERSION_MAJOR;
 255                         INITIALIZE_Response->MinorVersion          = REMOTE_NDIS_VERSION_MINOR;
 256                         INITIALIZE_Response->DeviceFlags           = REMOTE_NDIS_DF_CONNECTIONLESS;
 257                         INITIALIZE_Response->Medium                = REMOTE_NDIS_MEDIUM_802_3;
 258                         INITIALIZE_Response->MaxPacketsPerTransfer = 1;
 259                         INITIALIZE_Response->MaxTransferSize       = (sizeof(RNDIS_Packet_Message_t) + ETHERNET_FRAME_SIZE_MAX);
 260                         INITIALIZE_Response->PacketAlignmentFactor = 0;
 261                         INITIALIZE_Response->AFListOffset          = 0;
 262                         INITIALIZE_Response->AFListSize            = 0;
 263
 264                         RNDISInterfaceInfo->State.CurrRNDISState = RNDIS_Initialized;
 265
 266                         break;
 267                 case REMOTE_NDIS_HALT_MSG:
 268                         RNDISInterfaceInfo->State.ResponseReady = false;
 269                         MessageHeader->MessageLength = 0;
 270
 271                         RNDISInterfaceInfo->State.CurrRNDISState = RNDIS_Uninitialized;
 272
 273                         break;
 274                 case REMOTE_NDIS_QUERY_MSG:
 275                         RNDISInterfaceInfo->State.ResponseReady = true;
 276
 277                         RNDIS_Query_Message_t*  QUERY_Message  = (RNDIS_Query_Message_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
 278                         RNDIS_Query_Complete_t* QUERY_Response = (RNDIS_Query_Complete_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
 279                         uint32_t                Query_Oid      = QUERY_Message->Oid;
 280
 281                         void*     QueryData = &RNDISInterfaceInfo->State.RNDISMessageBuffer[sizeof(RNDIS_Message_Header_t) +
 282                                                                                             QUERY_Message->InformationBufferOffset];
 283                         void*     ResponseData = &RNDISInterfaceInfo->State.RNDISMessageBuffer[sizeof(RNDIS_Query_Complete_t)];
 284                         uint16_t  ResponseSize;
 285
 286                         QUERY_Response->MessageType   = REMOTE_NDIS_QUERY_CMPLT;
 287                         QUERY_Response->MessageLength = sizeof(RNDIS_Query_Complete_t);
 288
 289                         if (RNDIS_Device_ProcessNDISQuery(RNDISInterfaceInfo, Query_Oid, QueryData, QUERY_Message->InformationBufferLength,
 290                                                           ResponseData, &ResponseSize))
 291                         {
 292                                 QUERY_Response->Status                  = REMOTE_NDIS_STATUS_SUCCESS;
 293                                 QUERY_Response->MessageLength          += ResponseSize;
 294
 295                                 QUERY_Response->InformationBufferLength = ResponseSize;
 296                                 QUERY_Response->InformationBufferOffset = (sizeof(RNDIS_Query_Complete_t) - sizeof(RNDIS_Message_Header_t));
 297                         }
 298                         else
 299                         {
 300                                 QUERY_Response->Status                  = REMOTE_NDIS_STATUS_NOT_SUPPORTED;
 301
 302                                 QUERY_Response->InformationBufferLength = 0;
 303                                 QUERY_Response->InformationBufferOffset = 0;
 304                         }
 305
 306                         break;
 307                 case REMOTE_NDIS_SET_MSG:
 308                         RNDISInterfaceInfo->State.ResponseReady = true;
 309
 310                         RNDIS_Set_Message_t*  SET_Message  = (RNDIS_Set_Message_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
 311                         RNDIS_Set_Complete_t* SET_Response = (RNDIS_Set_Complete_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
 312                         uint32_t              SET_Oid      = SET_Message->Oid;
 313
 314                         SET_Response->MessageType   = REMOTE_NDIS_SET_CMPLT;
 315                         SET_Response->MessageLength = sizeof(RNDIS_Set_Complete_t);
 316                         SET_Response->RequestId     = SET_Message->RequestId;
 317
 318                         void* SetData = &RNDISInterfaceInfo->State.RNDISMessageBuffer[sizeof(RNDIS_Message_Header_t) +
 319                                                                                       SET_Message->InformationBufferOffset];
 320
 321                         SET_Response->Status = RNDIS_Device_ProcessNDISSet(RNDISInterfaceInfo, SET_Oid, SetData,
 322                                                                            SET_Message->InformationBufferLength) ?
 323                                                                            REMOTE_NDIS_STATUS_SUCCESS : REMOTE_NDIS_STATUS_NOT_SUPPORTED;
 324                         break;
 325                 case REMOTE_NDIS_RESET_MSG:
 326                         RNDISInterfaceInfo->State.ResponseReady = true;
 327
 328                         RNDIS_Reset_Complete_t* RESET_Response = (RNDIS_Reset_Complete_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
 329
 330                         RESET_Response->MessageType     = REMOTE_NDIS_RESET_CMPLT;
 331                         RESET_Response->MessageLength   = sizeof(RNDIS_Reset_Complete_t);
 332                         RESET_Response->Status          = REMOTE_NDIS_STATUS_SUCCESS;
 333                         RESET_Response->AddressingReset = 0;
 334
 335                         break;
 336                 case REMOTE_NDIS_KEEPALIVE_MSG:
 337                         RNDISInterfaceInfo->State.ResponseReady = true;
 338
 339                         RNDIS_KeepAlive_Message_t*  KEEPALIVE_Message  =
 340                                         (RNDIS_KeepAlive_Message_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
 341                         RNDIS_KeepAlive_Complete_t* KEEPALIVE_Response =
 342                                         (RNDIS_KeepAlive_Complete_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
 343
 344                         KEEPALIVE_Response->MessageType   = REMOTE_NDIS_KEEPALIVE_CMPLT;
 345                         KEEPALIVE_Response->MessageLength = sizeof(RNDIS_KeepAlive_Complete_t);
 346                         KEEPALIVE_Response->RequestId     = KEEPALIVE_Message->RequestId;
 347                         KEEPALIVE_Response->Status        = REMOTE_NDIS_STATUS_SUCCESS;
 348
 349                         break;
 350         }
 351 }
 352
 353 static bool RNDIS_Device_ProcessNDISQuery(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
 354                                           const uint32_t OId,
 355                                           void* const QueryData,
 356                                           const uint16_t QuerySize,
 357                                           void* ResponseData,
 358                                           uint16_t* const ResponseSize)
 359 {
 360         (void)QueryData;
 361         (void)QuerySize;
 362
 363         switch (OId)
 364         {
 365                 case OID_GEN_SUPPORTED_LIST:
 366                         *ResponseSize = sizeof(AdapterSupportedOIDList);
 367
 368                         memcpy_P(ResponseData, AdapterSupportedOIDList, sizeof(AdapterSupportedOIDList));
 369
 370                         return true;
 371                 case OID_GEN_PHYSICAL_MEDIUM:
 372                         *ResponseSize = sizeof(uint32_t);
 373
 374                         /* Indicate that the device is a true ethernet link */
 375                         *((uint32_t*)ResponseData) = 0;
 376
 377                         return true;
 378                 case OID_GEN_HARDWARE_STATUS:
 379                         *ResponseSize = sizeof(uint32_t);
 380
 381                         *((uint32_t*)ResponseData) = NDIS_HardwareStatus_Ready;
 382
 383                         return true;
 384                 case OID_GEN_MEDIA_SUPPORTED:
 385                 case OID_GEN_MEDIA_IN_USE:
 386                         *ResponseSize = sizeof(uint32_t);
 387
 388                         *((uint32_t*)ResponseData) = REMOTE_NDIS_MEDIUM_802_3;
 389
 390                         return true;
 391                 case OID_GEN_VENDOR_ID:
 392                         *ResponseSize = sizeof(uint32_t);
 393
 394                         /* Vendor ID 0x0xFFFFFF is reserved for vendors who have not purchased a NDIS VID */
 395                         *((uint32_t*)ResponseData) = 0x00FFFFFF;
 396
 397                         return true;
 398                 case OID_GEN_MAXIMUM_FRAME_SIZE:
 399                 case OID_GEN_TRANSMIT_BLOCK_SIZE:
 400                 case OID_GEN_RECEIVE_BLOCK_SIZE:
 401                         *ResponseSize = sizeof(uint32_t);
 402
 403                         *((uint32_t*)ResponseData) = ETHERNET_FRAME_SIZE_MAX;
 404
 405                         return true;
 406                 case OID_GEN_VENDOR_DESCRIPTION:
 407                         *ResponseSize = (strlen(RNDISInterfaceInfo->Config.AdapterVendorDescription) + 1);
 408
 409                         memcpy(ResponseData, RNDISInterfaceInfo->Config.AdapterVendorDescription, *ResponseSize);
 410
 411                         return true;
 412                 case OID_GEN_MEDIA_CONNECT_STATUS:
 413                         *ResponseSize = sizeof(uint32_t);
 414
 415                         *((uint32_t*)ResponseData) = REMOTE_NDIS_MEDIA_STATE_CONNECTED;
 416
 417                         return true;
 418                 case OID_GEN_LINK_SPEED:
 419                         *ResponseSize = sizeof(uint32_t);
 420
 421                         /* Indicate 10Mb/s link speed */
 422                         *((uint32_t*)ResponseData) = 100000;
 423
 424                         return true;
 425                 case OID_802_3_PERMANENT_ADDRESS:
 426                 case OID_802_3_CURRENT_ADDRESS:
 427                         *ResponseSize = sizeof(MAC_Address_t);
 428
 429                         memcpy(ResponseData, &RNDISInterfaceInfo->Config.AdapterMACAddress, sizeof(MAC_Address_t));
 430
 431                         return true;
 432                 case OID_802_3_MAXIMUM_LIST_SIZE:
 433                         *ResponseSize = sizeof(uint32_t);
 434
 435                         /* Indicate only one multicast address supported */
 436                         *((uint32_t*)ResponseData) = 1;
 437
 438                         return true;
 439                 case OID_GEN_CURRENT_PACKET_FILTER:
 440                         *ResponseSize = sizeof(uint32_t);
 441
 442                         *((uint32_t*)ResponseData) = RNDISInterfaceInfo->State.CurrPacketFilter;
 443
 444                         return true;
 445                 case OID_GEN_XMIT_OK:
 446                 case OID_GEN_RCV_OK:
 447                 case OID_GEN_XMIT_ERROR:
 448                 case OID_GEN_RCV_ERROR:
 449                 case OID_GEN_RCV_NO_BUFFER:
 450                 case OID_802_3_RCV_ERROR_ALIGNMENT:
 451                 case OID_802_3_XMIT_ONE_COLLISION:
 452                 case OID_802_3_XMIT_MORE_COLLISIONS:
 453                         *ResponseSize = sizeof(uint32_t);
 454
 455                         /* Unused statistic OIDs - always return 0 for each */
 456                         *((uint32_t*)ResponseData) = 0;
 457
 458                         return true;
 459                 case OID_GEN_MAXIMUM_TOTAL_SIZE:
 460                         *ResponseSize = sizeof(uint32_t);
 461
 462                         /* Indicate maximum overall buffer (Ethernet frame and RNDIS header) the adapter can handle */
 463                         *((uint32_t*)ResponseData) = (RNDIS_MESSAGE_BUFFER_SIZE + ETHERNET_FRAME_SIZE_MAX);
 464
 465                         return true;
 466                 default:
 467                         return false;
 468         }
 469 }
 470
 471 static bool RNDIS_Device_ProcessNDISSet(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
 472                                         const uint32_t OId,
 473                                         const void* SetData,
 474                                         const uint16_t SetSize)
 475 {
 476         (void)SetSize;
 477
 478         switch (OId)
 479         {
 480                 case OID_GEN_CURRENT_PACKET_FILTER:
 481                         RNDISInterfaceInfo->State.CurrPacketFilter = *((uint32_t*)SetData);
 482                         RNDISInterfaceInfo->State.CurrRNDISState = ((RNDISInterfaceInfo->State.CurrPacketFilter) ?
 483                                                               RNDIS_Data_Initialized : RNDIS_Data_Initialized);
 484
 485                         return true;
 486                 case OID_802_3_MULTICAST_LIST:
 487                         /* Do nothing - throw away the value from the host as it is unused */
 488
 489                         return true;
 490                 default:
 491                         return false;
 492         }
 493 }
 494
 495 #endif