private void PrepareSendDBD(IPAddress destinationAddress, DBDOptions dbdOptions, Boolean sendLsaHeaderData = false)
{
lock (Lock)
{
//++ parsers build the header
ushort mtu = Interface.OspfNetworkType == OspfNetworkType.VirtualLink ? (ushort)0 : OspfDbdHeader.EthernetAndP2PMtu;
var ospfLlsDataBlockTlv = (OspfLlsDataBlockTlv)_controller.GetSingletonHandler("OSPFLLSDATABLOCKTLV").Build();
var ospfLlsDataBlockHeader = (OspfLlsDataBlockHeader)_controller.GetSingletonHandler("OSPFLLSDATABLOCK").Build();
List<OspfLsaHeader> headerList = null;
if (sendLsaHeaderData)
{
headerList = DBSummaryList;
}
var dbdHeader = (OspfDbdHeader)_controller.GetSingletonHandler("OSPFDBD").Build(
Value.Raw("OspfDbdHeader:Mtu", mtu),
Value.Raw("OspfDbdHeader:Options", (byte)Interface.Area.GetOptions(supportOBit: true)),
Value.Raw("OspfDbdHeader:Flags", (byte)dbdOptions),
Value.Raw("OspfDbdHeader:SequenceNumber", DDSequenceNumber));
dbdHeader.LsaList = headerList;
_dbdSendList.Add(DDSequenceNumber, new Tuple<IPAddress, OspfDbdHeader, OspfLlsDataBlockHeader, OspfLlsDataBlockTlv>(destinationAddress, dbdHeader, ospfLlsDataBlockHeader, ospfLlsDataBlockTlv));
SendDBDReady();
}
}
private DBDOptions GetDBDOptions(bool isFirstRun, bool hasMore)
{
var options = new DBDOptions();
if (isFirstRun)
{
options |= DBDOptions.Initial;
}
if (LocalMSState == MasterSlaveState.Master)
{
options |= DBDOptions.Master;
}
if (hasMore)
{
options |= DBDOptions.More;
}
return options;
}