如何设置和查询 NDIS 虚拟微型端口驱动程序的多播地址?

Question

我想在虚拟微型端口驱动程序上添加多播支持。我有一个过滤器驱动程序绑定在每个物理网卡上。根据Microsoft文档
https://msdn.microsoft.com/en-us/library/windows/hardware/ff569073(v=vs.85).aspx

我盯着添加支持组播地址：

这些是我的步骤：在微型端口驱动程序中： 在miniport initialization期间，我在NDIS_MINIPORT_ADAPTER_GENERAL_ATTRIBUTES中添加了MaxMulticastListSize = 32。

NDIS_MINIPORT_ADAPTER_GENERAL_ATTRIBUTES MiniportAdapterGeneralAttributes;
MiniportAdapterGeneralAttributes.MediaType = NdisMedium802_3;
MiniportAdapterGeneralAttributes.PhysicalMediumType = NdisPhysicalMediumUnspecified;
MiniportAdapterGeneralAttributes.MaxMulticastListSize = 32;

我还更新了 OID_802_3_MAXIMUM_LIST_SIZE OID 中的 32 个最大地址。 接下来我更新了PacketFilters

MiniportAdapterGeneralAttributes.SupportedPacketFilters =    NDIS_PACKET_TYPE_DIRECTED |
NDIS_PACKET_TYPE_MULTICAST |
NDIS_PACKET_TYPE_BROADCAST |
NDIS_PACKET_TYPE_PROMISCUOUS |
NDIS_PACKET_TYPE_ALL_MULTICAST;

在OID_GEN_CURRENT_PACKET_FILTEROID 集请求期间，我用DATA.SET_INFORMATION.InformationBuffer值更新了数据包过滤器。

和 在OID_GEN_MAC_OPTION期间，我正在添加宏：NDIS_MAC_OPTION_NO_LOOPBACK | NDIS_MAC_OPTION_FULL_DUPLEX | NDIS_MAC_OPTION_8021P_PRIORITY ;

接下来OID_802_3_MULTICAST_LIST OID集请求中，我维护了一个组播列表

OidRequest->DATA.SET_INFORMATION.BytesNeeded = 6;
OidRequest->DATA.SET_INFORMATION.BytesRead = OidRequest->DATA.SET_INFORMATION.InformationBufferLength;
do
{
//check multicast address invalid
if(OidRequest->DATA.SET_INFORMATION.InformationBufferLength % 6){
OidRequest->DATA.SET_INFORMATION.BytesRead = 0;
status = NDIS_STATUS_INVALID_LENGTH;
break;
}
//check multicast address list full
if(OidRequest->DATA.SET_INFORMATION.InformationBufferLength > (VELAN_MAX_MCAST_LIST * 6)){
status = NDIS_STATUS_MULTICAST_FULL;
OidRequest->DATA.SET_INFORMATION.BytesNeeded = VELAN_MAX_MCAST_LIST * 6;
break;
}
//setting new multicast address list
NdisZeroMemory(m_ulMcList,VELAN_MAX_MCAST_LIST * MUX_MAC_ADDRESS);
NdisMoveMemory(m_ulMcList,OidRequest->DATA.SET_INFORMATION.InformationBuffer,OidRequest->DATA.SET_INFORMATION.InformationBufferLength);
m_ulMclistSize = OidRequest->DATA.SET_INFORMATION.InformationBufferLength / 6;
status = NDIS_STATUS_SUCCESS;
}while(FALSE);

我用NDISTester测试过。它有一个协议驱动程序，将绑定到微型端口适配器。 但是我在接收期间没有收到任何组播数据包。有什么遗漏吗？我收到像received less than expected percentage of sent这样的错误.有什么建议吗？

Answer 1

我认为您需要为OID_802_3_MAXIMUM_LIST_SIZE提供一个处理程序。