ChannelMgmt.o ChannelInterface.o ring_buffer.o
hv_storvsc-objs := storvsc_drv.o storvsc.o
hv_blkvsc-objs := blkvsc_drv.o blkvsc.o
-hv_netvsc-objs := netvsc_drv.o netvsc.o RndisFilter.o
+hv_netvsc-objs := netvsc_drv.o netvsc.o rndis_filter.o
+++ /dev/null
-/*
- * Copyright (c) 2009, Microsoft Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place - Suite 330, Boston, MA 02111-1307 USA.
- *
- * Authors:
- * Haiyang Zhang <haiyangz@microsoft.com>
- * Hank Janssen <hjanssen@microsoft.com>
- */
-#include <linux/kernel.h>
-#include <linux/highmem.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <linux/if_ether.h>
-
-#include "osd.h"
-#include "logging.h"
-#include "NetVscApi.h"
-#include "RndisFilter.h"
-
-/* Data types */
-struct rndis_filter_driver_object {
- /* The original driver */
- struct netvsc_driver InnerDriver;
-};
-
-enum rndis_device_state {
- RNDIS_DEV_UNINITIALIZED = 0,
- RNDIS_DEV_INITIALIZING,
- RNDIS_DEV_INITIALIZED,
- RNDIS_DEV_DATAINITIALIZED,
-};
-
-struct rndis_device {
- struct netvsc_device *NetDevice;
-
- enum rndis_device_state State;
- u32 LinkStatus;
- atomic_t NewRequestId;
-
- spinlock_t request_lock;
- struct list_head RequestList;
-
- unsigned char HwMacAddr[ETH_ALEN];
-};
-
-struct rndis_request {
- struct list_head ListEntry;
- struct osd_waitevent *WaitEvent;
-
- /*
- * FIXME: We assumed a fixed size response here. If we do ever need to
- * handle a bigger response, we can either define a max response
- * message or add a response buffer variable above this field
- */
- struct rndis_message ResponseMessage;
-
- /* Simplify allocation by having a netvsc packet inline */
- struct hv_netvsc_packet Packet;
- struct hv_page_buffer Buffer;
- /* FIXME: We assumed a fixed size request here. */
- struct rndis_message RequestMessage;
-};
-
-
-struct rndis_filter_packet {
- void *CompletionContext;
- void (*OnCompletion)(void *context);
- struct rndis_message Message;
-};
-
-
-static int RndisFilterOnDeviceAdd(struct hv_device *Device,
- void *AdditionalInfo);
-
-static int RndisFilterOnDeviceRemove(struct hv_device *Device);
-
-static void RndisFilterOnCleanup(struct hv_driver *Driver);
-
-static int RndisFilterOnSend(struct hv_device *Device,
- struct hv_netvsc_packet *Packet);
-
-static void RndisFilterOnSendCompletion(void *Context);
-
-static void RndisFilterOnSendRequestCompletion(void *Context);
-
-
-/* The one and only */
-static struct rndis_filter_driver_object gRndisFilter;
-
-static struct rndis_device *GetRndisDevice(void)
-{
- struct rndis_device *device;
-
- device = kzalloc(sizeof(struct rndis_device), GFP_KERNEL);
- if (!device)
- return NULL;
-
- spin_lock_init(&device->request_lock);
-
- INIT_LIST_HEAD(&device->RequestList);
-
- device->State = RNDIS_DEV_UNINITIALIZED;
-
- return device;
-}
-
-static struct rndis_request *GetRndisRequest(struct rndis_device *Device,
- u32 MessageType,
- u32 MessageLength)
-{
- struct rndis_request *request;
- struct rndis_message *rndisMessage;
- struct rndis_set_request *set;
- unsigned long flags;
-
- request = kzalloc(sizeof(struct rndis_request), GFP_KERNEL);
- if (!request)
- return NULL;
-
- request->WaitEvent = osd_WaitEventCreate();
- if (!request->WaitEvent) {
- kfree(request);
- return NULL;
- }
-
- rndisMessage = &request->RequestMessage;
- rndisMessage->NdisMessageType = MessageType;
- rndisMessage->MessageLength = MessageLength;
-
- /*
- * Set the request id. This field is always after the rndis header for
- * request/response packet types so we just used the SetRequest as a
- * template
- */
- set = &rndisMessage->Message.SetRequest;
- set->RequestId = atomic_inc_return(&Device->NewRequestId);
-
- /* Add to the request list */
- spin_lock_irqsave(&Device->request_lock, flags);
- list_add_tail(&request->ListEntry, &Device->RequestList);
- spin_unlock_irqrestore(&Device->request_lock, flags);
-
- return request;
-}
-
-static void PutRndisRequest(struct rndis_device *Device,
- struct rndis_request *Request)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&Device->request_lock, flags);
- list_del(&Request->ListEntry);
- spin_unlock_irqrestore(&Device->request_lock, flags);
-
- kfree(Request->WaitEvent);
- kfree(Request);
-}
-
-static void DumpRndisMessage(struct rndis_message *RndisMessage)
-{
- switch (RndisMessage->NdisMessageType) {
- case REMOTE_NDIS_PACKET_MSG:
- 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",
- RndisMessage->MessageLength,
- RndisMessage->Message.Packet.DataOffset,
- RndisMessage->Message.Packet.DataLength,
- RndisMessage->Message.Packet.NumOOBDataElements,
- RndisMessage->Message.Packet.OOBDataOffset,
- RndisMessage->Message.Packet.OOBDataLength,
- RndisMessage->Message.Packet.PerPacketInfoOffset,
- RndisMessage->Message.Packet.PerPacketInfoLength);
- break;
-
- case REMOTE_NDIS_INITIALIZE_CMPLT:
- 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)",
- RndisMessage->MessageLength,
- RndisMessage->Message.InitializeComplete.RequestId,
- RndisMessage->Message.InitializeComplete.Status,
- RndisMessage->Message.InitializeComplete.MajorVersion,
- RndisMessage->Message.InitializeComplete.MinorVersion,
- RndisMessage->Message.InitializeComplete.DeviceFlags,
- RndisMessage->Message.InitializeComplete.MaxTransferSize,
- RndisMessage->Message.InitializeComplete.MaxPacketsPerMessage,
- RndisMessage->Message.InitializeComplete.PacketAlignmentFactor);
- break;
-
- case REMOTE_NDIS_QUERY_CMPLT:
- DPRINT_DBG(NETVSC, "REMOTE_NDIS_QUERY_CMPLT "
- "(len %u, id 0x%x, status 0x%x, buf len %u, "
- "buf offset %u)",
- RndisMessage->MessageLength,
- RndisMessage->Message.QueryComplete.RequestId,
- RndisMessage->Message.QueryComplete.Status,
- RndisMessage->Message.QueryComplete.InformationBufferLength,
- RndisMessage->Message.QueryComplete.InformationBufferOffset);
- break;
-
- case REMOTE_NDIS_SET_CMPLT:
- DPRINT_DBG(NETVSC,
- "REMOTE_NDIS_SET_CMPLT (len %u, id 0x%x, status 0x%x)",
- RndisMessage->MessageLength,
- RndisMessage->Message.SetComplete.RequestId,
- RndisMessage->Message.SetComplete.Status);
- break;
-
- case REMOTE_NDIS_INDICATE_STATUS_MSG:
- DPRINT_DBG(NETVSC, "REMOTE_NDIS_INDICATE_STATUS_MSG "
- "(len %u, status 0x%x, buf len %u, buf offset %u)",
- RndisMessage->MessageLength,
- RndisMessage->Message.IndicateStatus.Status,
- RndisMessage->Message.IndicateStatus.StatusBufferLength,
- RndisMessage->Message.IndicateStatus.StatusBufferOffset);
- break;
-
- default:
- DPRINT_DBG(NETVSC, "0x%x (len %u)",
- RndisMessage->NdisMessageType,
- RndisMessage->MessageLength);
- break;
- }
-}
-
-static int RndisFilterSendRequest(struct rndis_device *Device,
- struct rndis_request *Request)
-{
- int ret;
- struct hv_netvsc_packet *packet;
-
- DPRINT_ENTER(NETVSC);
-
- /* Setup the packet to send it */
- packet = &Request->Packet;
-
- packet->IsDataPacket = false;
- packet->TotalDataBufferLength = Request->RequestMessage.MessageLength;
- packet->PageBufferCount = 1;
-
- packet->PageBuffers[0].Pfn = virt_to_phys(&Request->RequestMessage) >>
- PAGE_SHIFT;
- packet->PageBuffers[0].Length = Request->RequestMessage.MessageLength;
- packet->PageBuffers[0].Offset =
- (unsigned long)&Request->RequestMessage & (PAGE_SIZE - 1);
-
- packet->Completion.Send.SendCompletionContext = Request;/* packet; */
- packet->Completion.Send.OnSendCompletion =
- RndisFilterOnSendRequestCompletion;
- packet->Completion.Send.SendCompletionTid = (unsigned long)Device;
-
- ret = gRndisFilter.InnerDriver.OnSend(Device->NetDevice->Device, packet);
- DPRINT_EXIT(NETVSC);
- return ret;
-}
-
-static void RndisFilterReceiveResponse(struct rndis_device *Device,
- struct rndis_message *Response)
-{
- struct rndis_request *request = NULL;
- bool found = false;
- unsigned long flags;
-
- DPRINT_ENTER(NETVSC);
-
- spin_lock_irqsave(&Device->request_lock, flags);
- list_for_each_entry(request, &Device->RequestList, ListEntry) {
- /*
- * All request/response message contains RequestId as the 1st
- * field
- */
- if (request->RequestMessage.Message.InitializeRequest.RequestId
- == Response->Message.InitializeComplete.RequestId) {
- DPRINT_DBG(NETVSC, "found rndis request for "
- "this response (id 0x%x req type 0x%x res "
- "type 0x%x)",
- request->RequestMessage.Message.InitializeRequest.RequestId,
- request->RequestMessage.NdisMessageType,
- Response->NdisMessageType);
-
- found = true;
- break;
- }
- }
- spin_unlock_irqrestore(&Device->request_lock, flags);
-
- if (found) {
- if (Response->MessageLength <= sizeof(struct rndis_message)) {
- memcpy(&request->ResponseMessage, Response,
- Response->MessageLength);
- } else {
- DPRINT_ERR(NETVSC, "rndis response buffer overflow "
- "detected (size %u max %zu)",
- Response->MessageLength,
- sizeof(struct rndis_filter_packet));
-
- if (Response->NdisMessageType ==
- REMOTE_NDIS_RESET_CMPLT) {
- /* does not have a request id field */
- request->ResponseMessage.Message.ResetComplete.Status = STATUS_BUFFER_OVERFLOW;
- } else {
- request->ResponseMessage.Message.InitializeComplete.Status = STATUS_BUFFER_OVERFLOW;
- }
- }
-
- osd_WaitEventSet(request->WaitEvent);
- } else {
- DPRINT_ERR(NETVSC, "no rndis request found for this response "
- "(id 0x%x res type 0x%x)",
- Response->Message.InitializeComplete.RequestId,
- Response->NdisMessageType);
- }
-
- DPRINT_EXIT(NETVSC);
-}
-
-static void RndisFilterReceiveIndicateStatus(struct rndis_device *Device,
- struct rndis_message *Response)
-{
- struct rndis_indicate_status *indicate =
- &Response->Message.IndicateStatus;
-
- if (indicate->Status == RNDIS_STATUS_MEDIA_CONNECT) {
- gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 1);
- } else if (indicate->Status == RNDIS_STATUS_MEDIA_DISCONNECT) {
- gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 0);
- } else {
- /*
- * TODO:
- */
- }
-}
-
-static void RndisFilterReceiveData(struct rndis_device *Device,
- struct rndis_message *Message,
- struct hv_netvsc_packet *Packet)
-{
- struct rndis_packet *rndisPacket;
- u32 dataOffset;
-
- DPRINT_ENTER(NETVSC);
-
- /* empty ethernet frame ?? */
- /* ASSERT(Packet->PageBuffers[0].Length > */
- /* RNDIS_MESSAGE_SIZE(struct rndis_packet)); */
-
- rndisPacket = &Message->Message.Packet;
-
- /*
- * FIXME: Handle multiple rndis pkt msgs that maybe enclosed in this
- * netvsc packet (ie TotalDataBufferLength != MessageLength)
- */
-
- /* Remove the rndis header and pass it back up the stack */
- dataOffset = RNDIS_HEADER_SIZE + rndisPacket->DataOffset;
-
- Packet->TotalDataBufferLength -= dataOffset;
- Packet->PageBuffers[0].Offset += dataOffset;
- Packet->PageBuffers[0].Length -= dataOffset;
-
- Packet->IsDataPacket = true;
-
- gRndisFilter.InnerDriver.OnReceiveCallback(Device->NetDevice->Device,
- Packet);
-
- DPRINT_EXIT(NETVSC);
-}
-
-static int RndisFilterOnReceive(struct hv_device *Device,
- struct hv_netvsc_packet *Packet)
-{
- struct netvsc_device *netDevice = Device->Extension;
- struct rndis_device *rndisDevice;
- struct rndis_message rndisMessage;
- struct rndis_message *rndisHeader;
-
- DPRINT_ENTER(NETVSC);
-
- if (!netDevice)
- return -EINVAL;
-
- /* Make sure the rndis device state is initialized */
- if (!netDevice->Extension) {
- DPRINT_ERR(NETVSC, "got rndis message but no rndis device..."
- "dropping this message!");
- DPRINT_EXIT(NETVSC);
- return -1;
- }
-
- rndisDevice = (struct rndis_device *)netDevice->Extension;
- if (rndisDevice->State == RNDIS_DEV_UNINITIALIZED) {
- DPRINT_ERR(NETVSC, "got rndis message but rndis device "
- "uninitialized...dropping this message!");
- DPRINT_EXIT(NETVSC);
- return -1;
- }
-
- rndisHeader = (struct rndis_message *)kmap_atomic(
- pfn_to_page(Packet->PageBuffers[0].Pfn), KM_IRQ0);
-
- rndisHeader = (void *)((unsigned long)rndisHeader +
- Packet->PageBuffers[0].Offset);
-
- /* Make sure we got a valid rndis message */
- /*
- * FIXME: There seems to be a bug in set completion msg where its
- * MessageLength is 16 bytes but the ByteCount field in the xfer page
- * range shows 52 bytes
- * */
-#if 0
- if (Packet->TotalDataBufferLength != rndisHeader->MessageLength) {
- kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset,
- KM_IRQ0);
-
- DPRINT_ERR(NETVSC, "invalid rndis message? (expected %u "
- "bytes got %u)...dropping this message!",
- rndisHeader->MessageLength,
- Packet->TotalDataBufferLength);
- DPRINT_EXIT(NETVSC);
- return -1;
- }
-#endif
-
- if ((rndisHeader->NdisMessageType != REMOTE_NDIS_PACKET_MSG) &&
- (rndisHeader->MessageLength > sizeof(struct rndis_message))) {
- DPRINT_ERR(NETVSC, "incoming rndis message buffer overflow "
- "detected (got %u, max %zu)...marking it an error!",
- rndisHeader->MessageLength,
- sizeof(struct rndis_message));
- }
-
- memcpy(&rndisMessage, rndisHeader,
- (rndisHeader->MessageLength > sizeof(struct rndis_message)) ?
- sizeof(struct rndis_message) :
- rndisHeader->MessageLength);
-
- kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset, KM_IRQ0);
-
- DumpRndisMessage(&rndisMessage);
-
- switch (rndisMessage.NdisMessageType) {
- case REMOTE_NDIS_PACKET_MSG:
- /* data msg */
- RndisFilterReceiveData(rndisDevice, &rndisMessage, Packet);
- break;
-
- case REMOTE_NDIS_INITIALIZE_CMPLT:
- case REMOTE_NDIS_QUERY_CMPLT:
- case REMOTE_NDIS_SET_CMPLT:
- /* case REMOTE_NDIS_RESET_CMPLT: */
- /* case REMOTE_NDIS_KEEPALIVE_CMPLT: */
- /* completion msgs */
- RndisFilterReceiveResponse(rndisDevice, &rndisMessage);
- break;
-
- case REMOTE_NDIS_INDICATE_STATUS_MSG:
- /* notification msgs */
- RndisFilterReceiveIndicateStatus(rndisDevice, &rndisMessage);
- break;
- default:
- DPRINT_ERR(NETVSC, "unhandled rndis message (type %u len %u)",
- rndisMessage.NdisMessageType,
- rndisMessage.MessageLength);
- break;
- }
-
- DPRINT_EXIT(NETVSC);
- return 0;
-}
-
-static int RndisFilterQueryDevice(struct rndis_device *Device, u32 Oid,
- void *Result, u32 *ResultSize)
-{
- struct rndis_request *request;
- u32 inresultSize = *ResultSize;
- struct rndis_query_request *query;
- struct rndis_query_complete *queryComplete;
- int ret = 0;
-
- DPRINT_ENTER(NETVSC);
-
- if (!Result)
- return -EINVAL;
-
- *ResultSize = 0;
- request = GetRndisRequest(Device, REMOTE_NDIS_QUERY_MSG,
- RNDIS_MESSAGE_SIZE(struct rndis_query_request));
- if (!request) {
- ret = -1;
- goto Cleanup;
- }
-
- /* Setup the rndis query */
- query = &request->RequestMessage.Message.QueryRequest;
- query->Oid = Oid;
- query->InformationBufferOffset = sizeof(struct rndis_query_request);
- query->InformationBufferLength = 0;
- query->DeviceVcHandle = 0;
-
- ret = RndisFilterSendRequest(Device, request);
- if (ret != 0)
- goto Cleanup;
-
- osd_WaitEventWait(request->WaitEvent);
-
- /* Copy the response back */
- queryComplete = &request->ResponseMessage.Message.QueryComplete;
-
- if (queryComplete->InformationBufferLength > inresultSize) {
- ret = -1;
- goto Cleanup;
- }
-
- memcpy(Result,
- (void *)((unsigned long)queryComplete +
- queryComplete->InformationBufferOffset),
- queryComplete->InformationBufferLength);
-
- *ResultSize = queryComplete->InformationBufferLength;
-
-Cleanup:
- if (request)
- PutRndisRequest(Device, request);
- DPRINT_EXIT(NETVSC);
-
- return ret;
-}
-
-static int RndisFilterQueryDeviceMac(struct rndis_device *Device)
-{
- u32 size = ETH_ALEN;
-
- return RndisFilterQueryDevice(Device,
- RNDIS_OID_802_3_PERMANENT_ADDRESS,
- Device->HwMacAddr, &size);
-}
-
-static int RndisFilterQueryDeviceLinkStatus(struct rndis_device *Device)
-{
- u32 size = sizeof(u32);
-
- return RndisFilterQueryDevice(Device,
- RNDIS_OID_GEN_MEDIA_CONNECT_STATUS,
- &Device->LinkStatus, &size);
-}
-
-static int RndisFilterSetPacketFilter(struct rndis_device *Device,
- u32 NewFilter)
-{
- struct rndis_request *request;
- struct rndis_set_request *set;
- struct rndis_set_complete *setComplete;
- u32 status;
- int ret;
-
- DPRINT_ENTER(NETVSC);
-
- /* ASSERT(RNDIS_MESSAGE_SIZE(struct rndis_set_request) + sizeof(u32) <= */
- /* sizeof(struct rndis_message)); */
-
- request = GetRndisRequest(Device, REMOTE_NDIS_SET_MSG,
- RNDIS_MESSAGE_SIZE(struct rndis_set_request) +
- sizeof(u32));
- if (!request) {
- ret = -1;
- goto Cleanup;
- }
-
- /* Setup the rndis set */
- set = &request->RequestMessage.Message.SetRequest;
- set->Oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER;
- set->InformationBufferLength = sizeof(u32);
- set->InformationBufferOffset = sizeof(struct rndis_set_request);
-
- memcpy((void *)(unsigned long)set + sizeof(struct rndis_set_request),
- &NewFilter, sizeof(u32));
-
- ret = RndisFilterSendRequest(Device, request);
- if (ret != 0)
- goto Cleanup;
-
- ret = osd_WaitEventWaitEx(request->WaitEvent, 2000/*2sec*/);
- if (!ret) {
- ret = -1;
- DPRINT_ERR(NETVSC, "timeout before we got a set response...");
- /*
- * We cant deallocate the request since we may still receive a
- * send completion for it.
- */
- goto Exit;
- } else {
- if (ret > 0)
- ret = 0;
- setComplete = &request->ResponseMessage.Message.SetComplete;
- status = setComplete->Status;
- }
-
-Cleanup:
- if (request)
- PutRndisRequest(Device, request);
-Exit:
- DPRINT_EXIT(NETVSC);
-
- return ret;
-}
-
-int RndisFilterInit(struct netvsc_driver *Driver)
-{
- DPRINT_ENTER(NETVSC);
-
- DPRINT_DBG(NETVSC, "sizeof(struct rndis_filter_packet) == %zd",
- sizeof(struct rndis_filter_packet));
-
- Driver->RequestExtSize = sizeof(struct rndis_filter_packet);
-
- /* Driver->Context = rndisDriver; */
-
- memset(&gRndisFilter, 0, sizeof(struct rndis_filter_driver_object));
-
- /*rndisDriver->Driver = Driver;
-
- ASSERT(Driver->OnLinkStatusChanged);
- rndisDriver->OnLinkStatusChanged = Driver->OnLinkStatusChanged;*/
-
- /* Save the original dispatch handlers before we override it */
- gRndisFilter.InnerDriver.Base.OnDeviceAdd = Driver->Base.OnDeviceAdd;
- gRndisFilter.InnerDriver.Base.OnDeviceRemove =
- Driver->Base.OnDeviceRemove;
- gRndisFilter.InnerDriver.Base.OnCleanup = Driver->Base.OnCleanup;
-
- /* ASSERT(Driver->OnSend); */
- /* ASSERT(Driver->OnReceiveCallback); */
- gRndisFilter.InnerDriver.OnSend = Driver->OnSend;
- gRndisFilter.InnerDriver.OnReceiveCallback = Driver->OnReceiveCallback;
- gRndisFilter.InnerDriver.OnLinkStatusChanged =
- Driver->OnLinkStatusChanged;
-
- /* Override */
- Driver->Base.OnDeviceAdd = RndisFilterOnDeviceAdd;
- Driver->Base.OnDeviceRemove = RndisFilterOnDeviceRemove;
- Driver->Base.OnCleanup = RndisFilterOnCleanup;
- Driver->OnSend = RndisFilterOnSend;
- /* Driver->QueryLinkStatus = RndisFilterQueryDeviceLinkStatus; */
- Driver->OnReceiveCallback = RndisFilterOnReceive;
-
- DPRINT_EXIT(NETVSC);
-
- return 0;
-}
-
-static int RndisFilterInitDevice(struct rndis_device *Device)
-{
- struct rndis_request *request;
- struct rndis_initialize_request *init;
- struct rndis_initialize_complete *initComplete;
- u32 status;
- int ret;
-
- DPRINT_ENTER(NETVSC);
-
- request = GetRndisRequest(Device, REMOTE_NDIS_INITIALIZE_MSG,
- RNDIS_MESSAGE_SIZE(struct rndis_initialize_request));
- if (!request) {
- ret = -1;
- goto Cleanup;
- }
-
- /* Setup the rndis set */
- init = &request->RequestMessage.Message.InitializeRequest;
- init->MajorVersion = RNDIS_MAJOR_VERSION;
- init->MinorVersion = RNDIS_MINOR_VERSION;
- /* FIXME: Use 1536 - rounded ethernet frame size */
- init->MaxTransferSize = 2048;
-
- Device->State = RNDIS_DEV_INITIALIZING;
-
- ret = RndisFilterSendRequest(Device, request);
- if (ret != 0) {
- Device->State = RNDIS_DEV_UNINITIALIZED;
- goto Cleanup;
- }
-
- osd_WaitEventWait(request->WaitEvent);
-
- initComplete = &request->ResponseMessage.Message.InitializeComplete;
- status = initComplete->Status;
- if (status == RNDIS_STATUS_SUCCESS) {
- Device->State = RNDIS_DEV_INITIALIZED;
- ret = 0;
- } else {
- Device->State = RNDIS_DEV_UNINITIALIZED;
- ret = -1;
- }
-
-Cleanup:
- if (request)
- PutRndisRequest(Device, request);
- DPRINT_EXIT(NETVSC);
-
- return ret;
-}
-
-static void RndisFilterHaltDevice(struct rndis_device *Device)
-{
- struct rndis_request *request;
- struct rndis_halt_request *halt;
-
- DPRINT_ENTER(NETVSC);
-
- /* Attempt to do a rndis device halt */
- request = GetRndisRequest(Device, REMOTE_NDIS_HALT_MSG,
- RNDIS_MESSAGE_SIZE(struct rndis_halt_request));
- if (!request)
- goto Cleanup;
-
- /* Setup the rndis set */
- halt = &request->RequestMessage.Message.HaltRequest;
- halt->RequestId = atomic_inc_return(&Device->NewRequestId);
-
- /* Ignore return since this msg is optional. */
- RndisFilterSendRequest(Device, request);
-
- Device->State = RNDIS_DEV_UNINITIALIZED;
-
-Cleanup:
- if (request)
- PutRndisRequest(Device, request);
- DPRINT_EXIT(NETVSC);
- return;
-}
-
-static int RndisFilterOpenDevice(struct rndis_device *Device)
-{
- int ret;
-
- DPRINT_ENTER(NETVSC);
-
- if (Device->State != RNDIS_DEV_INITIALIZED)
- return 0;
-
- ret = RndisFilterSetPacketFilter(Device,
- NDIS_PACKET_TYPE_BROADCAST |
- NDIS_PACKET_TYPE_DIRECTED);
- if (ret == 0)
- Device->State = RNDIS_DEV_DATAINITIALIZED;
-
- DPRINT_EXIT(NETVSC);
- return ret;
-}
-
-static int RndisFilterCloseDevice(struct rndis_device *Device)
-{
- int ret;
-
- DPRINT_ENTER(NETVSC);
-
- if (Device->State != RNDIS_DEV_DATAINITIALIZED)
- return 0;
-
- ret = RndisFilterSetPacketFilter(Device, 0);
- if (ret == 0)
- Device->State = RNDIS_DEV_INITIALIZED;
-
- DPRINT_EXIT(NETVSC);
-
- return ret;
-}
-
-static int RndisFilterOnDeviceAdd(struct hv_device *Device,
- void *AdditionalInfo)
-{
- int ret;
- struct netvsc_device *netDevice;
- struct rndis_device *rndisDevice;
- struct netvsc_device_info *deviceInfo = AdditionalInfo;
-
- DPRINT_ENTER(NETVSC);
-
- rndisDevice = GetRndisDevice();
- if (!rndisDevice) {
- DPRINT_EXIT(NETVSC);
- return -1;
- }
-
- DPRINT_DBG(NETVSC, "rndis device object allocated - %p", rndisDevice);
-
- /*
- * Let the inner driver handle this first to create the netvsc channel
- * NOTE! Once the channel is created, we may get a receive callback
- * (RndisFilterOnReceive()) before this call is completed
- */
- ret = gRndisFilter.InnerDriver.Base.OnDeviceAdd(Device, AdditionalInfo);
- if (ret != 0) {
- kfree(rndisDevice);
- DPRINT_EXIT(NETVSC);
- return ret;
- }
-
-
- /* Initialize the rndis device */
- netDevice = Device->Extension;
- /* ASSERT(netDevice); */
- /* ASSERT(netDevice->Device); */
-
- netDevice->Extension = rndisDevice;
- rndisDevice->NetDevice = netDevice;
-
- /* Send the rndis initialization message */
- ret = RndisFilterInitDevice(rndisDevice);
- if (ret != 0) {
- /*
- * TODO: If rndis init failed, we will need to shut down the
- * channel
- */
- }
-
- /* Get the mac address */
- ret = RndisFilterQueryDeviceMac(rndisDevice);
- if (ret != 0) {
- /*
- * TODO: shutdown rndis device and the channel
- */
- }
-
- DPRINT_INFO(NETVSC, "Device 0x%p mac addr %pM",
- rndisDevice, rndisDevice->HwMacAddr);
-
- memcpy(deviceInfo->MacAddr, rndisDevice->HwMacAddr, ETH_ALEN);
-
- RndisFilterQueryDeviceLinkStatus(rndisDevice);
-
- deviceInfo->LinkState = rndisDevice->LinkStatus;
- DPRINT_INFO(NETVSC, "Device 0x%p link state %s", rndisDevice,
- ((deviceInfo->LinkState) ? ("down") : ("up")));
-
- DPRINT_EXIT(NETVSC);
-
- return ret;
-}
-
-static int RndisFilterOnDeviceRemove(struct hv_device *Device)
-{
- struct netvsc_device *netDevice = Device->Extension;
- struct rndis_device *rndisDevice = netDevice->Extension;
-
- DPRINT_ENTER(NETVSC);
-
- /* Halt and release the rndis device */
- RndisFilterHaltDevice(rndisDevice);
-
- kfree(rndisDevice);
- netDevice->Extension = NULL;
-
- /* Pass control to inner driver to remove the device */
- gRndisFilter.InnerDriver.Base.OnDeviceRemove(Device);
-
- DPRINT_EXIT(NETVSC);
-
- return 0;
-}
-
-static void RndisFilterOnCleanup(struct hv_driver *Driver)
-{
- DPRINT_ENTER(NETVSC);
-
- DPRINT_EXIT(NETVSC);
-}
-
-int RndisFilterOnOpen(struct hv_device *Device)
-{
- int ret;
- struct netvsc_device *netDevice = Device->Extension;
-
- DPRINT_ENTER(NETVSC);
-
- if (!netDevice)
- return -EINVAL;
-
- ret = RndisFilterOpenDevice(netDevice->Extension);
-
- DPRINT_EXIT(NETVSC);
-
- return ret;
-}
-
-int RndisFilterOnClose(struct hv_device *Device)
-{
- int ret;
- struct netvsc_device *netDevice = Device->Extension;
-
- DPRINT_ENTER(NETVSC);
-
- if (!netDevice)
- return -EINVAL;
-
- ret = RndisFilterCloseDevice(netDevice->Extension);
-
- DPRINT_EXIT(NETVSC);
-
- return ret;
-}
-
-static int RndisFilterOnSend(struct hv_device *Device,
- struct hv_netvsc_packet *Packet)
-{
- int ret;
- struct rndis_filter_packet *filterPacket;
- struct rndis_message *rndisMessage;
- struct rndis_packet *rndisPacket;
- u32 rndisMessageSize;
-
- DPRINT_ENTER(NETVSC);
-
- /* Add the rndis header */
- filterPacket = (struct rndis_filter_packet *)Packet->Extension;
- /* ASSERT(filterPacket); */
-
- memset(filterPacket, 0, sizeof(struct rndis_filter_packet));
-
- rndisMessage = &filterPacket->Message;
- rndisMessageSize = RNDIS_MESSAGE_SIZE(struct rndis_packet);
-
- rndisMessage->NdisMessageType = REMOTE_NDIS_PACKET_MSG;
- rndisMessage->MessageLength = Packet->TotalDataBufferLength +
- rndisMessageSize;
-
- rndisPacket = &rndisMessage->Message.Packet;
- rndisPacket->DataOffset = sizeof(struct rndis_packet);
- rndisPacket->DataLength = Packet->TotalDataBufferLength;
-
- Packet->IsDataPacket = true;
- Packet->PageBuffers[0].Pfn = virt_to_phys(rndisMessage) >> PAGE_SHIFT;
- Packet->PageBuffers[0].Offset =
- (unsigned long)rndisMessage & (PAGE_SIZE-1);
- Packet->PageBuffers[0].Length = rndisMessageSize;
-
- /* Save the packet send completion and context */
- filterPacket->OnCompletion = Packet->Completion.Send.OnSendCompletion;
- filterPacket->CompletionContext =
- Packet->Completion.Send.SendCompletionContext;
-
- /* Use ours */
- Packet->Completion.Send.OnSendCompletion = RndisFilterOnSendCompletion;
- Packet->Completion.Send.SendCompletionContext = filterPacket;
-
- ret = gRndisFilter.InnerDriver.OnSend(Device, Packet);
- if (ret != 0) {
- /*
- * Reset the completion to originals to allow retries from
- * above
- */
- Packet->Completion.Send.OnSendCompletion =
- filterPacket->OnCompletion;
- Packet->Completion.Send.SendCompletionContext =
- filterPacket->CompletionContext;
- }
-
- DPRINT_EXIT(NETVSC);
-
- return ret;
-}
-
-static void RndisFilterOnSendCompletion(void *Context)
-{
- struct rndis_filter_packet *filterPacket = Context;
-
- DPRINT_ENTER(NETVSC);
-
- /* Pass it back to the original handler */
- filterPacket->OnCompletion(filterPacket->CompletionContext);
-
- DPRINT_EXIT(NETVSC);
-}
-
-
-static void RndisFilterOnSendRequestCompletion(void *Context)
-{
- DPRINT_ENTER(NETVSC);
-
- /* Noop */
- DPRINT_EXIT(NETVSC);
-}
+++ /dev/null
-/*
- *
- * Copyright (c) 2009, Microsoft Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place - Suite 330, Boston, MA 02111-1307 USA.
- *
- * Authors:
- * Haiyang Zhang <haiyangz@microsoft.com>
- * Hank Janssen <hjanssen@microsoft.com>
- *
- */
-
-
-#ifndef _RNDISFILTER_H_
-#define _RNDISFILTER_H_
-
-#define __struct_bcount(x)
-
-#include "netvsc.h"
-
-#include "rndis.h"
-
-#define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
- sizeof(union rndis_message_container))
-
-#define NDIS_PACKET_TYPE_DIRECTED 0x00000001
-#define NDIS_PACKET_TYPE_MULTICAST 0x00000002
-#define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
-#define NDIS_PACKET_TYPE_BROADCAST 0x00000008
-#define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
-#define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
-#define NDIS_PACKET_TYPE_SMT 0x00000040
-#define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
-#define NDIS_PACKET_TYPE_GROUP 0x00000100
-#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
-#define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
-#define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
-
-
-/* Interface */
-
-extern int RndisFilterInit(struct netvsc_driver *driver);
-
-#endif /* _RNDISFILTER_H_ */
#include "osd.h"
#include "logging.h"
#include "netvsc.h"
-#include "RndisFilter.h"
+#include "rndis_filter.h"
/* Globals */
--- /dev/null
+/*
+ * Copyright (c) 2009, Microsoft Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * Authors:
+ * Haiyang Zhang <haiyangz@microsoft.com>
+ * Hank Janssen <hjanssen@microsoft.com>
+ */
+#include <linux/kernel.h>
+#include <linux/highmem.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/if_ether.h>
+
+#include "osd.h"
+#include "logging.h"
+#include "NetVscApi.h"
+#include "rndis_filter.h"
+
+/* Data types */
+struct rndis_filter_driver_object {
+ /* The original driver */
+ struct netvsc_driver InnerDriver;
+};
+
+enum rndis_device_state {
+ RNDIS_DEV_UNINITIALIZED = 0,
+ RNDIS_DEV_INITIALIZING,
+ RNDIS_DEV_INITIALIZED,
+ RNDIS_DEV_DATAINITIALIZED,
+};
+
+struct rndis_device {
+ struct netvsc_device *NetDevice;
+
+ enum rndis_device_state State;
+ u32 LinkStatus;
+ atomic_t NewRequestId;
+
+ spinlock_t request_lock;
+ struct list_head RequestList;
+
+ unsigned char HwMacAddr[ETH_ALEN];
+};
+
+struct rndis_request {
+ struct list_head ListEntry;
+ struct osd_waitevent *WaitEvent;
+
+ /*
+ * FIXME: We assumed a fixed size response here. If we do ever need to
+ * handle a bigger response, we can either define a max response
+ * message or add a response buffer variable above this field
+ */
+ struct rndis_message ResponseMessage;
+
+ /* Simplify allocation by having a netvsc packet inline */
+ struct hv_netvsc_packet Packet;
+ struct hv_page_buffer Buffer;
+ /* FIXME: We assumed a fixed size request here. */
+ struct rndis_message RequestMessage;
+};
+
+
+struct rndis_filter_packet {
+ void *CompletionContext;
+ void (*OnCompletion)(void *context);
+ struct rndis_message Message;
+};
+
+
+static int RndisFilterOnDeviceAdd(struct hv_device *Device,
+ void *AdditionalInfo);
+
+static int RndisFilterOnDeviceRemove(struct hv_device *Device);
+
+static void RndisFilterOnCleanup(struct hv_driver *Driver);
+
+static int RndisFilterOnSend(struct hv_device *Device,
+ struct hv_netvsc_packet *Packet);
+
+static void RndisFilterOnSendCompletion(void *Context);
+
+static void RndisFilterOnSendRequestCompletion(void *Context);
+
+
+/* The one and only */
+static struct rndis_filter_driver_object gRndisFilter;
+
+static struct rndis_device *GetRndisDevice(void)
+{
+ struct rndis_device *device;
+
+ device = kzalloc(sizeof(struct rndis_device), GFP_KERNEL);
+ if (!device)
+ return NULL;
+
+ spin_lock_init(&device->request_lock);
+
+ INIT_LIST_HEAD(&device->RequestList);
+
+ device->State = RNDIS_DEV_UNINITIALIZED;
+
+ return device;
+}
+
+static struct rndis_request *GetRndisRequest(struct rndis_device *Device,
+ u32 MessageType,
+ u32 MessageLength)
+{
+ struct rndis_request *request;
+ struct rndis_message *rndisMessage;
+ struct rndis_set_request *set;
+ unsigned long flags;
+
+ request = kzalloc(sizeof(struct rndis_request), GFP_KERNEL);
+ if (!request)
+ return NULL;
+
+ request->WaitEvent = osd_WaitEventCreate();
+ if (!request->WaitEvent) {
+ kfree(request);
+ return NULL;
+ }
+
+ rndisMessage = &request->RequestMessage;
+ rndisMessage->NdisMessageType = MessageType;
+ rndisMessage->MessageLength = MessageLength;
+
+ /*
+ * Set the request id. This field is always after the rndis header for
+ * request/response packet types so we just used the SetRequest as a
+ * template
+ */
+ set = &rndisMessage->Message.SetRequest;
+ set->RequestId = atomic_inc_return(&Device->NewRequestId);
+
+ /* Add to the request list */
+ spin_lock_irqsave(&Device->request_lock, flags);
+ list_add_tail(&request->ListEntry, &Device->RequestList);
+ spin_unlock_irqrestore(&Device->request_lock, flags);
+
+ return request;
+}
+
+static void PutRndisRequest(struct rndis_device *Device,
+ struct rndis_request *Request)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&Device->request_lock, flags);
+ list_del(&Request->ListEntry);
+ spin_unlock_irqrestore(&Device->request_lock, flags);
+
+ kfree(Request->WaitEvent);
+ kfree(Request);
+}
+
+static void DumpRndisMessage(struct rndis_message *RndisMessage)
+{
+ switch (RndisMessage->NdisMessageType) {
+ case REMOTE_NDIS_PACKET_MSG:
+ 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",
+ RndisMessage->MessageLength,
+ RndisMessage->Message.Packet.DataOffset,
+ RndisMessage->Message.Packet.DataLength,
+ RndisMessage->Message.Packet.NumOOBDataElements,
+ RndisMessage->Message.Packet.OOBDataOffset,
+ RndisMessage->Message.Packet.OOBDataLength,
+ RndisMessage->Message.Packet.PerPacketInfoOffset,
+ RndisMessage->Message.Packet.PerPacketInfoLength);
+ break;
+
+ case REMOTE_NDIS_INITIALIZE_CMPLT:
+ 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)",
+ RndisMessage->MessageLength,
+ RndisMessage->Message.InitializeComplete.RequestId,
+ RndisMessage->Message.InitializeComplete.Status,
+ RndisMessage->Message.InitializeComplete.MajorVersion,
+ RndisMessage->Message.InitializeComplete.MinorVersion,
+ RndisMessage->Message.InitializeComplete.DeviceFlags,
+ RndisMessage->Message.InitializeComplete.MaxTransferSize,
+ RndisMessage->Message.InitializeComplete.MaxPacketsPerMessage,
+ RndisMessage->Message.InitializeComplete.PacketAlignmentFactor);
+ break;
+
+ case REMOTE_NDIS_QUERY_CMPLT:
+ DPRINT_DBG(NETVSC, "REMOTE_NDIS_QUERY_CMPLT "
+ "(len %u, id 0x%x, status 0x%x, buf len %u, "
+ "buf offset %u)",
+ RndisMessage->MessageLength,
+ RndisMessage->Message.QueryComplete.RequestId,
+ RndisMessage->Message.QueryComplete.Status,
+ RndisMessage->Message.QueryComplete.InformationBufferLength,
+ RndisMessage->Message.QueryComplete.InformationBufferOffset);
+ break;
+
+ case REMOTE_NDIS_SET_CMPLT:
+ DPRINT_DBG(NETVSC,
+ "REMOTE_NDIS_SET_CMPLT (len %u, id 0x%x, status 0x%x)",
+ RndisMessage->MessageLength,
+ RndisMessage->Message.SetComplete.RequestId,
+ RndisMessage->Message.SetComplete.Status);
+ break;
+
+ case REMOTE_NDIS_INDICATE_STATUS_MSG:
+ DPRINT_DBG(NETVSC, "REMOTE_NDIS_INDICATE_STATUS_MSG "
+ "(len %u, status 0x%x, buf len %u, buf offset %u)",
+ RndisMessage->MessageLength,
+ RndisMessage->Message.IndicateStatus.Status,
+ RndisMessage->Message.IndicateStatus.StatusBufferLength,
+ RndisMessage->Message.IndicateStatus.StatusBufferOffset);
+ break;
+
+ default:
+ DPRINT_DBG(NETVSC, "0x%x (len %u)",
+ RndisMessage->NdisMessageType,
+ RndisMessage->MessageLength);
+ break;
+ }
+}
+
+static int RndisFilterSendRequest(struct rndis_device *Device,
+ struct rndis_request *Request)
+{
+ int ret;
+ struct hv_netvsc_packet *packet;
+
+ DPRINT_ENTER(NETVSC);
+
+ /* Setup the packet to send it */
+ packet = &Request->Packet;
+
+ packet->IsDataPacket = false;
+ packet->TotalDataBufferLength = Request->RequestMessage.MessageLength;
+ packet->PageBufferCount = 1;
+
+ packet->PageBuffers[0].Pfn = virt_to_phys(&Request->RequestMessage) >>
+ PAGE_SHIFT;
+ packet->PageBuffers[0].Length = Request->RequestMessage.MessageLength;
+ packet->PageBuffers[0].Offset =
+ (unsigned long)&Request->RequestMessage & (PAGE_SIZE - 1);
+
+ packet->Completion.Send.SendCompletionContext = Request;/* packet; */
+ packet->Completion.Send.OnSendCompletion =
+ RndisFilterOnSendRequestCompletion;
+ packet->Completion.Send.SendCompletionTid = (unsigned long)Device;
+
+ ret = gRndisFilter.InnerDriver.OnSend(Device->NetDevice->Device, packet);
+ DPRINT_EXIT(NETVSC);
+ return ret;
+}
+
+static void RndisFilterReceiveResponse(struct rndis_device *Device,
+ struct rndis_message *Response)
+{
+ struct rndis_request *request = NULL;
+ bool found = false;
+ unsigned long flags;
+
+ DPRINT_ENTER(NETVSC);
+
+ spin_lock_irqsave(&Device->request_lock, flags);
+ list_for_each_entry(request, &Device->RequestList, ListEntry) {
+ /*
+ * All request/response message contains RequestId as the 1st
+ * field
+ */
+ if (request->RequestMessage.Message.InitializeRequest.RequestId
+ == Response->Message.InitializeComplete.RequestId) {
+ DPRINT_DBG(NETVSC, "found rndis request for "
+ "this response (id 0x%x req type 0x%x res "
+ "type 0x%x)",
+ request->RequestMessage.Message.InitializeRequest.RequestId,
+ request->RequestMessage.NdisMessageType,
+ Response->NdisMessageType);
+
+ found = true;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&Device->request_lock, flags);
+
+ if (found) {
+ if (Response->MessageLength <= sizeof(struct rndis_message)) {
+ memcpy(&request->ResponseMessage, Response,
+ Response->MessageLength);
+ } else {
+ DPRINT_ERR(NETVSC, "rndis response buffer overflow "
+ "detected (size %u max %zu)",
+ Response->MessageLength,
+ sizeof(struct rndis_filter_packet));
+
+ if (Response->NdisMessageType ==
+ REMOTE_NDIS_RESET_CMPLT) {
+ /* does not have a request id field */
+ request->ResponseMessage.Message.ResetComplete.Status = STATUS_BUFFER_OVERFLOW;
+ } else {
+ request->ResponseMessage.Message.InitializeComplete.Status = STATUS_BUFFER_OVERFLOW;
+ }
+ }
+
+ osd_WaitEventSet(request->WaitEvent);
+ } else {
+ DPRINT_ERR(NETVSC, "no rndis request found for this response "
+ "(id 0x%x res type 0x%x)",
+ Response->Message.InitializeComplete.RequestId,
+ Response->NdisMessageType);
+ }
+
+ DPRINT_EXIT(NETVSC);
+}
+
+static void RndisFilterReceiveIndicateStatus(struct rndis_device *Device,
+ struct rndis_message *Response)
+{
+ struct rndis_indicate_status *indicate =
+ &Response->Message.IndicateStatus;
+
+ if (indicate->Status == RNDIS_STATUS_MEDIA_CONNECT) {
+ gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 1);
+ } else if (indicate->Status == RNDIS_STATUS_MEDIA_DISCONNECT) {
+ gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 0);
+ } else {
+ /*
+ * TODO:
+ */
+ }
+}
+
+static void RndisFilterReceiveData(struct rndis_device *Device,
+ struct rndis_message *Message,
+ struct hv_netvsc_packet *Packet)
+{
+ struct rndis_packet *rndisPacket;
+ u32 dataOffset;
+
+ DPRINT_ENTER(NETVSC);
+
+ /* empty ethernet frame ?? */
+ /* ASSERT(Packet->PageBuffers[0].Length > */
+ /* RNDIS_MESSAGE_SIZE(struct rndis_packet)); */
+
+ rndisPacket = &Message->Message.Packet;
+
+ /*
+ * FIXME: Handle multiple rndis pkt msgs that maybe enclosed in this
+ * netvsc packet (ie TotalDataBufferLength != MessageLength)
+ */
+
+ /* Remove the rndis header and pass it back up the stack */
+ dataOffset = RNDIS_HEADER_SIZE + rndisPacket->DataOffset;
+
+ Packet->TotalDataBufferLength -= dataOffset;
+ Packet->PageBuffers[0].Offset += dataOffset;
+ Packet->PageBuffers[0].Length -= dataOffset;
+
+ Packet->IsDataPacket = true;
+
+ gRndisFilter.InnerDriver.OnReceiveCallback(Device->NetDevice->Device,
+ Packet);
+
+ DPRINT_EXIT(NETVSC);
+}
+
+static int RndisFilterOnReceive(struct hv_device *Device,
+ struct hv_netvsc_packet *Packet)
+{
+ struct netvsc_device *netDevice = Device->Extension;
+ struct rndis_device *rndisDevice;
+ struct rndis_message rndisMessage;
+ struct rndis_message *rndisHeader;
+
+ DPRINT_ENTER(NETVSC);
+
+ if (!netDevice)
+ return -EINVAL;
+
+ /* Make sure the rndis device state is initialized */
+ if (!netDevice->Extension) {
+ DPRINT_ERR(NETVSC, "got rndis message but no rndis device..."
+ "dropping this message!");
+ DPRINT_EXIT(NETVSC);
+ return -1;
+ }
+
+ rndisDevice = (struct rndis_device *)netDevice->Extension;
+ if (rndisDevice->State == RNDIS_DEV_UNINITIALIZED) {
+ DPRINT_ERR(NETVSC, "got rndis message but rndis device "
+ "uninitialized...dropping this message!");
+ DPRINT_EXIT(NETVSC);
+ return -1;
+ }
+
+ rndisHeader = (struct rndis_message *)kmap_atomic(
+ pfn_to_page(Packet->PageBuffers[0].Pfn), KM_IRQ0);
+
+ rndisHeader = (void *)((unsigned long)rndisHeader +
+ Packet->PageBuffers[0].Offset);
+
+ /* Make sure we got a valid rndis message */
+ /*
+ * FIXME: There seems to be a bug in set completion msg where its
+ * MessageLength is 16 bytes but the ByteCount field in the xfer page
+ * range shows 52 bytes
+ * */
+#if 0
+ if (Packet->TotalDataBufferLength != rndisHeader->MessageLength) {
+ kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset,
+ KM_IRQ0);
+
+ DPRINT_ERR(NETVSC, "invalid rndis message? (expected %u "
+ "bytes got %u)...dropping this message!",
+ rndisHeader->MessageLength,
+ Packet->TotalDataBufferLength);
+ DPRINT_EXIT(NETVSC);
+ return -1;
+ }
+#endif
+
+ if ((rndisHeader->NdisMessageType != REMOTE_NDIS_PACKET_MSG) &&
+ (rndisHeader->MessageLength > sizeof(struct rndis_message))) {
+ DPRINT_ERR(NETVSC, "incoming rndis message buffer overflow "
+ "detected (got %u, max %zu)...marking it an error!",
+ rndisHeader->MessageLength,
+ sizeof(struct rndis_message));
+ }
+
+ memcpy(&rndisMessage, rndisHeader,
+ (rndisHeader->MessageLength > sizeof(struct rndis_message)) ?
+ sizeof(struct rndis_message) :
+ rndisHeader->MessageLength);
+
+ kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset, KM_IRQ0);
+
+ DumpRndisMessage(&rndisMessage);
+
+ switch (rndisMessage.NdisMessageType) {
+ case REMOTE_NDIS_PACKET_MSG:
+ /* data msg */
+ RndisFilterReceiveData(rndisDevice, &rndisMessage, Packet);
+ break;
+
+ case REMOTE_NDIS_INITIALIZE_CMPLT:
+ case REMOTE_NDIS_QUERY_CMPLT:
+ case REMOTE_NDIS_SET_CMPLT:
+ /* case REMOTE_NDIS_RESET_CMPLT: */
+ /* case REMOTE_NDIS_KEEPALIVE_CMPLT: */
+ /* completion msgs */
+ RndisFilterReceiveResponse(rndisDevice, &rndisMessage);
+ break;
+
+ case REMOTE_NDIS_INDICATE_STATUS_MSG:
+ /* notification msgs */
+ RndisFilterReceiveIndicateStatus(rndisDevice, &rndisMessage);
+ break;
+ default:
+ DPRINT_ERR(NETVSC, "unhandled rndis message (type %u len %u)",
+ rndisMessage.NdisMessageType,
+ rndisMessage.MessageLength);
+ break;
+ }
+
+ DPRINT_EXIT(NETVSC);
+ return 0;
+}
+
+static int RndisFilterQueryDevice(struct rndis_device *Device, u32 Oid,
+ void *Result, u32 *ResultSize)
+{
+ struct rndis_request *request;
+ u32 inresultSize = *ResultSize;
+ struct rndis_query_request *query;
+ struct rndis_query_complete *queryComplete;
+ int ret = 0;
+
+ DPRINT_ENTER(NETVSC);
+
+ if (!Result)
+ return -EINVAL;
+
+ *ResultSize = 0;
+ request = GetRndisRequest(Device, REMOTE_NDIS_QUERY_MSG,
+ RNDIS_MESSAGE_SIZE(struct rndis_query_request));
+ if (!request) {
+ ret = -1;
+ goto Cleanup;
+ }
+
+ /* Setup the rndis query */
+ query = &request->RequestMessage.Message.QueryRequest;
+ query->Oid = Oid;
+ query->InformationBufferOffset = sizeof(struct rndis_query_request);
+ query->InformationBufferLength = 0;
+ query->DeviceVcHandle = 0;
+
+ ret = RndisFilterSendRequest(Device, request);
+ if (ret != 0)
+ goto Cleanup;
+
+ osd_WaitEventWait(request->WaitEvent);
+
+ /* Copy the response back */
+ queryComplete = &request->ResponseMessage.Message.QueryComplete;
+
+ if (queryComplete->InformationBufferLength > inresultSize) {
+ ret = -1;
+ goto Cleanup;
+ }
+
+ memcpy(Result,
+ (void *)((unsigned long)queryComplete +
+ queryComplete->InformationBufferOffset),
+ queryComplete->InformationBufferLength);
+
+ *ResultSize = queryComplete->InformationBufferLength;
+
+Cleanup:
+ if (request)
+ PutRndisRequest(Device, request);
+ DPRINT_EXIT(NETVSC);
+
+ return ret;
+}
+
+static int RndisFilterQueryDeviceMac(struct rndis_device *Device)
+{
+ u32 size = ETH_ALEN;
+
+ return RndisFilterQueryDevice(Device,
+ RNDIS_OID_802_3_PERMANENT_ADDRESS,
+ Device->HwMacAddr, &size);
+}
+
+static int RndisFilterQueryDeviceLinkStatus(struct rndis_device *Device)
+{
+ u32 size = sizeof(u32);
+
+ return RndisFilterQueryDevice(Device,
+ RNDIS_OID_GEN_MEDIA_CONNECT_STATUS,
+ &Device->LinkStatus, &size);
+}
+
+static int RndisFilterSetPacketFilter(struct rndis_device *Device,
+ u32 NewFilter)
+{
+ struct rndis_request *request;
+ struct rndis_set_request *set;
+ struct rndis_set_complete *setComplete;
+ u32 status;
+ int ret;
+
+ DPRINT_ENTER(NETVSC);
+
+ /* ASSERT(RNDIS_MESSAGE_SIZE(struct rndis_set_request) + sizeof(u32) <= */
+ /* sizeof(struct rndis_message)); */
+
+ request = GetRndisRequest(Device, REMOTE_NDIS_SET_MSG,
+ RNDIS_MESSAGE_SIZE(struct rndis_set_request) +
+ sizeof(u32));
+ if (!request) {
+ ret = -1;
+ goto Cleanup;
+ }
+
+ /* Setup the rndis set */
+ set = &request->RequestMessage.Message.SetRequest;
+ set->Oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER;
+ set->InformationBufferLength = sizeof(u32);
+ set->InformationBufferOffset = sizeof(struct rndis_set_request);
+
+ memcpy((void *)(unsigned long)set + sizeof(struct rndis_set_request),
+ &NewFilter, sizeof(u32));
+
+ ret = RndisFilterSendRequest(Device, request);
+ if (ret != 0)
+ goto Cleanup;
+
+ ret = osd_WaitEventWaitEx(request->WaitEvent, 2000/*2sec*/);
+ if (!ret) {
+ ret = -1;
+ DPRINT_ERR(NETVSC, "timeout before we got a set response...");
+ /*
+ * We cant deallocate the request since we may still receive a
+ * send completion for it.
+ */
+ goto Exit;
+ } else {
+ if (ret > 0)
+ ret = 0;
+ setComplete = &request->ResponseMessage.Message.SetComplete;
+ status = setComplete->Status;
+ }
+
+Cleanup:
+ if (request)
+ PutRndisRequest(Device, request);
+Exit:
+ DPRINT_EXIT(NETVSC);
+
+ return ret;
+}
+
+int RndisFilterInit(struct netvsc_driver *Driver)
+{
+ DPRINT_ENTER(NETVSC);
+
+ DPRINT_DBG(NETVSC, "sizeof(struct rndis_filter_packet) == %zd",
+ sizeof(struct rndis_filter_packet));
+
+ Driver->RequestExtSize = sizeof(struct rndis_filter_packet);
+
+ /* Driver->Context = rndisDriver; */
+
+ memset(&gRndisFilter, 0, sizeof(struct rndis_filter_driver_object));
+
+ /*rndisDriver->Driver = Driver;
+
+ ASSERT(Driver->OnLinkStatusChanged);
+ rndisDriver->OnLinkStatusChanged = Driver->OnLinkStatusChanged;*/
+
+ /* Save the original dispatch handlers before we override it */
+ gRndisFilter.InnerDriver.Base.OnDeviceAdd = Driver->Base.OnDeviceAdd;
+ gRndisFilter.InnerDriver.Base.OnDeviceRemove =
+ Driver->Base.OnDeviceRemove;
+ gRndisFilter.InnerDriver.Base.OnCleanup = Driver->Base.OnCleanup;
+
+ /* ASSERT(Driver->OnSend); */
+ /* ASSERT(Driver->OnReceiveCallback); */
+ gRndisFilter.InnerDriver.OnSend = Driver->OnSend;
+ gRndisFilter.InnerDriver.OnReceiveCallback = Driver->OnReceiveCallback;
+ gRndisFilter.InnerDriver.OnLinkStatusChanged =
+ Driver->OnLinkStatusChanged;
+
+ /* Override */
+ Driver->Base.OnDeviceAdd = RndisFilterOnDeviceAdd;
+ Driver->Base.OnDeviceRemove = RndisFilterOnDeviceRemove;
+ Driver->Base.OnCleanup = RndisFilterOnCleanup;
+ Driver->OnSend = RndisFilterOnSend;
+ /* Driver->QueryLinkStatus = RndisFilterQueryDeviceLinkStatus; */
+ Driver->OnReceiveCallback = RndisFilterOnReceive;
+
+ DPRINT_EXIT(NETVSC);
+
+ return 0;
+}
+
+static int RndisFilterInitDevice(struct rndis_device *Device)
+{
+ struct rndis_request *request;
+ struct rndis_initialize_request *init;
+ struct rndis_initialize_complete *initComplete;
+ u32 status;
+ int ret;
+
+ DPRINT_ENTER(NETVSC);
+
+ request = GetRndisRequest(Device, REMOTE_NDIS_INITIALIZE_MSG,
+ RNDIS_MESSAGE_SIZE(struct rndis_initialize_request));
+ if (!request) {
+ ret = -1;
+ goto Cleanup;
+ }
+
+ /* Setup the rndis set */
+ init = &request->RequestMessage.Message.InitializeRequest;
+ init->MajorVersion = RNDIS_MAJOR_VERSION;
+ init->MinorVersion = RNDIS_MINOR_VERSION;
+ /* FIXME: Use 1536 - rounded ethernet frame size */
+ init->MaxTransferSize = 2048;
+
+ Device->State = RNDIS_DEV_INITIALIZING;
+
+ ret = RndisFilterSendRequest(Device, request);
+ if (ret != 0) {
+ Device->State = RNDIS_DEV_UNINITIALIZED;
+ goto Cleanup;
+ }
+
+ osd_WaitEventWait(request->WaitEvent);
+
+ initComplete = &request->ResponseMessage.Message.InitializeComplete;
+ status = initComplete->Status;
+ if (status == RNDIS_STATUS_SUCCESS) {
+ Device->State = RNDIS_DEV_INITIALIZED;
+ ret = 0;
+ } else {
+ Device->State = RNDIS_DEV_UNINITIALIZED;
+ ret = -1;
+ }
+
+Cleanup:
+ if (request)
+ PutRndisRequest(Device, request);
+ DPRINT_EXIT(NETVSC);
+
+ return ret;
+}
+
+static void RndisFilterHaltDevice(struct rndis_device *Device)
+{
+ struct rndis_request *request;
+ struct rndis_halt_request *halt;
+
+ DPRINT_ENTER(NETVSC);
+
+ /* Attempt to do a rndis device halt */
+ request = GetRndisRequest(Device, REMOTE_NDIS_HALT_MSG,
+ RNDIS_MESSAGE_SIZE(struct rndis_halt_request));
+ if (!request)
+ goto Cleanup;
+
+ /* Setup the rndis set */
+ halt = &request->RequestMessage.Message.HaltRequest;
+ halt->RequestId = atomic_inc_return(&Device->NewRequestId);
+
+ /* Ignore return since this msg is optional. */
+ RndisFilterSendRequest(Device, request);
+
+ Device->State = RNDIS_DEV_UNINITIALIZED;
+
+Cleanup:
+ if (request)
+ PutRndisRequest(Device, request);
+ DPRINT_EXIT(NETVSC);
+ return;
+}
+
+static int RndisFilterOpenDevice(struct rndis_device *Device)
+{
+ int ret;
+
+ DPRINT_ENTER(NETVSC);
+
+ if (Device->State != RNDIS_DEV_INITIALIZED)
+ return 0;
+
+ ret = RndisFilterSetPacketFilter(Device,
+ NDIS_PACKET_TYPE_BROADCAST |
+ NDIS_PACKET_TYPE_DIRECTED);
+ if (ret == 0)
+ Device->State = RNDIS_DEV_DATAINITIALIZED;
+
+ DPRINT_EXIT(NETVSC);
+ return ret;
+}
+
+static int RndisFilterCloseDevice(struct rndis_device *Device)
+{
+ int ret;
+
+ DPRINT_ENTER(NETVSC);
+
+ if (Device->State != RNDIS_DEV_DATAINITIALIZED)
+ return 0;
+
+ ret = RndisFilterSetPacketFilter(Device, 0);
+ if (ret == 0)
+ Device->State = RNDIS_DEV_INITIALIZED;
+
+ DPRINT_EXIT(NETVSC);
+
+ return ret;
+}
+
+static int RndisFilterOnDeviceAdd(struct hv_device *Device,
+ void *AdditionalInfo)
+{
+ int ret;
+ struct netvsc_device *netDevice;
+ struct rndis_device *rndisDevice;
+ struct netvsc_device_info *deviceInfo = AdditionalInfo;
+
+ DPRINT_ENTER(NETVSC);
+
+ rndisDevice = GetRndisDevice();
+ if (!rndisDevice) {
+ DPRINT_EXIT(NETVSC);
+ return -1;
+ }
+
+ DPRINT_DBG(NETVSC, "rndis device object allocated - %p", rndisDevice);
+
+ /*
+ * Let the inner driver handle this first to create the netvsc channel
+ * NOTE! Once the channel is created, we may get a receive callback
+ * (RndisFilterOnReceive()) before this call is completed
+ */
+ ret = gRndisFilter.InnerDriver.Base.OnDeviceAdd(Device, AdditionalInfo);
+ if (ret != 0) {
+ kfree(rndisDevice);
+ DPRINT_EXIT(NETVSC);
+ return ret;
+ }
+
+
+ /* Initialize the rndis device */
+ netDevice = Device->Extension;
+ /* ASSERT(netDevice); */
+ /* ASSERT(netDevice->Device); */
+
+ netDevice->Extension = rndisDevice;
+ rndisDevice->NetDevice = netDevice;
+
+ /* Send the rndis initialization message */
+ ret = RndisFilterInitDevice(rndisDevice);
+ if (ret != 0) {
+ /*
+ * TODO: If rndis init failed, we will need to shut down the
+ * channel
+ */
+ }
+
+ /* Get the mac address */
+ ret = RndisFilterQueryDeviceMac(rndisDevice);
+ if (ret != 0) {
+ /*
+ * TODO: shutdown rndis device and the channel
+ */
+ }
+
+ DPRINT_INFO(NETVSC, "Device 0x%p mac addr %pM",
+ rndisDevice, rndisDevice->HwMacAddr);
+
+ memcpy(deviceInfo->MacAddr, rndisDevice->HwMacAddr, ETH_ALEN);
+
+ RndisFilterQueryDeviceLinkStatus(rndisDevice);
+
+ deviceInfo->LinkState = rndisDevice->LinkStatus;
+ DPRINT_INFO(NETVSC, "Device 0x%p link state %s", rndisDevice,
+ ((deviceInfo->LinkState) ? ("down") : ("up")));
+
+ DPRINT_EXIT(NETVSC);
+
+ return ret;
+}
+
+static int RndisFilterOnDeviceRemove(struct hv_device *Device)
+{
+ struct netvsc_device *netDevice = Device->Extension;
+ struct rndis_device *rndisDevice = netDevice->Extension;
+
+ DPRINT_ENTER(NETVSC);
+
+ /* Halt and release the rndis device */
+ RndisFilterHaltDevice(rndisDevice);
+
+ kfree(rndisDevice);
+ netDevice->Extension = NULL;
+
+ /* Pass control to inner driver to remove the device */
+ gRndisFilter.InnerDriver.Base.OnDeviceRemove(Device);
+
+ DPRINT_EXIT(NETVSC);
+
+ return 0;
+}
+
+static void RndisFilterOnCleanup(struct hv_driver *Driver)
+{
+ DPRINT_ENTER(NETVSC);
+
+ DPRINT_EXIT(NETVSC);
+}
+
+int RndisFilterOnOpen(struct hv_device *Device)
+{
+ int ret;
+ struct netvsc_device *netDevice = Device->Extension;
+
+ DPRINT_ENTER(NETVSC);
+
+ if (!netDevice)
+ return -EINVAL;
+
+ ret = RndisFilterOpenDevice(netDevice->Extension);
+
+ DPRINT_EXIT(NETVSC);
+
+ return ret;
+}
+
+int RndisFilterOnClose(struct hv_device *Device)
+{
+ int ret;
+ struct netvsc_device *netDevice = Device->Extension;
+
+ DPRINT_ENTER(NETVSC);
+
+ if (!netDevice)
+ return -EINVAL;
+
+ ret = RndisFilterCloseDevice(netDevice->Extension);
+
+ DPRINT_EXIT(NETVSC);
+
+ return ret;
+}
+
+static int RndisFilterOnSend(struct hv_device *Device,
+ struct hv_netvsc_packet *Packet)
+{
+ int ret;
+ struct rndis_filter_packet *filterPacket;
+ struct rndis_message *rndisMessage;
+ struct rndis_packet *rndisPacket;
+ u32 rndisMessageSize;
+
+ DPRINT_ENTER(NETVSC);
+
+ /* Add the rndis header */
+ filterPacket = (struct rndis_filter_packet *)Packet->Extension;
+ /* ASSERT(filterPacket); */
+
+ memset(filterPacket, 0, sizeof(struct rndis_filter_packet));
+
+ rndisMessage = &filterPacket->Message;
+ rndisMessageSize = RNDIS_MESSAGE_SIZE(struct rndis_packet);
+
+ rndisMessage->NdisMessageType = REMOTE_NDIS_PACKET_MSG;
+ rndisMessage->MessageLength = Packet->TotalDataBufferLength +
+ rndisMessageSize;
+
+ rndisPacket = &rndisMessage->Message.Packet;
+ rndisPacket->DataOffset = sizeof(struct rndis_packet);
+ rndisPacket->DataLength = Packet->TotalDataBufferLength;
+
+ Packet->IsDataPacket = true;
+ Packet->PageBuffers[0].Pfn = virt_to_phys(rndisMessage) >> PAGE_SHIFT;
+ Packet->PageBuffers[0].Offset =
+ (unsigned long)rndisMessage & (PAGE_SIZE-1);
+ Packet->PageBuffers[0].Length = rndisMessageSize;
+
+ /* Save the packet send completion and context */
+ filterPacket->OnCompletion = Packet->Completion.Send.OnSendCompletion;
+ filterPacket->CompletionContext =
+ Packet->Completion.Send.SendCompletionContext;
+
+ /* Use ours */
+ Packet->Completion.Send.OnSendCompletion = RndisFilterOnSendCompletion;
+ Packet->Completion.Send.SendCompletionContext = filterPacket;
+
+ ret = gRndisFilter.InnerDriver.OnSend(Device, Packet);
+ if (ret != 0) {
+ /*
+ * Reset the completion to originals to allow retries from
+ * above
+ */
+ Packet->Completion.Send.OnSendCompletion =
+ filterPacket->OnCompletion;
+ Packet->Completion.Send.SendCompletionContext =
+ filterPacket->CompletionContext;
+ }
+
+ DPRINT_EXIT(NETVSC);
+
+ return ret;
+}
+
+static void RndisFilterOnSendCompletion(void *Context)
+{
+ struct rndis_filter_packet *filterPacket = Context;
+
+ DPRINT_ENTER(NETVSC);
+
+ /* Pass it back to the original handler */
+ filterPacket->OnCompletion(filterPacket->CompletionContext);
+
+ DPRINT_EXIT(NETVSC);
+}
+
+
+static void RndisFilterOnSendRequestCompletion(void *Context)
+{
+ DPRINT_ENTER(NETVSC);
+
+ /* Noop */
+ DPRINT_EXIT(NETVSC);
+}
--- /dev/null
+/*
+ *
+ * Copyright (c) 2009, Microsoft Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * Authors:
+ * Haiyang Zhang <haiyangz@microsoft.com>
+ * Hank Janssen <hjanssen@microsoft.com>
+ *
+ */
+
+
+#ifndef _RNDISFILTER_H_
+#define _RNDISFILTER_H_
+
+#define __struct_bcount(x)
+
+#include "netvsc.h"
+
+#include "rndis.h"
+
+#define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
+ sizeof(union rndis_message_container))
+
+#define NDIS_PACKET_TYPE_DIRECTED 0x00000001
+#define NDIS_PACKET_TYPE_MULTICAST 0x00000002
+#define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
+#define NDIS_PACKET_TYPE_BROADCAST 0x00000008
+#define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
+#define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
+#define NDIS_PACKET_TYPE_SMT 0x00000040
+#define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
+#define NDIS_PACKET_TYPE_GROUP 0x00000100
+#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
+#define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
+#define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
+
+
+/* Interface */
+
+extern int RndisFilterInit(struct netvsc_driver *driver);
+
+#endif /* _RNDISFILTER_H_ */
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff