如何设置和查询NDIS虚拟微型端口驱动程序的多播地址？
我想在虚拟的Miniport驱动程序上添加多播支持。我在每个物理网卡上都有一个过滤器驱动程序。根据Microsoft文档
https://msdn.microsoft.com/en-us/library/windows/hardware/ff569073(v=vs.85).aspx
我正准备添加支持多播地址：
，以下是我的步骤:在小型端口驱动程序中: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;另外，我在OID_802_3_MAXIMUM_LIST_SIZE OID中更新了32 max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_FILTER OID设置请求期间，我用DATA.SET_INFORMATION.InformationBuffer值更新了PacketFilters。
在OID_GEN_MAC_OPTION期间，我将添加宏：NDIS_MAC_OPTION_NO_LOOPBACK | NDIS_MAC_OPTION_FULL_DUPLEX | NDIS_MAC_OPTION_8021P_PRIORITY ;
接下来，在OID_802_3_MULTICAST_LIST OID设置请求中，我维护了一个多播列表
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进行了测试。它有一个协议驱动程序，它将绑定到小型端口适配器。但是在接收过程中我没有收到任何多播数据包。有东西不见了吗？我遇到了像received less than expected percentage of sent这样的错误。有什么建议吗？
回答 1
Stack Overflow用户
发布于 2017-05-31 15:59:20
我认为您需要为OID_802_3_MAXIMUM_LIST_SIZE提供一个处理程序。
https://stackoverflow.com/questions/43014599
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