public L2(PacketSpan <EthernetHeader> etherSpan)
{
this.Ethernet = default;
this.Type = PacketL2Type.Ethernet;
this.Generic = etherSpan.ToGenericSpan();
}
public L2_VLan(PacketSpan <VLanHeader> tagVlanSpan, EthernetProtocolId tpid)
{
this.TagVlan = default;
this.Type = tpid;
this.Generic = tagVlanSpan.ToGenericSpan();
}
public L7(PacketSpan <GenericHeader> l2tpPayloadSpan, L2TPPacketParsed l2tpPacketParsed)
{
this.L2TPPacketParsed = l2tpPacketParsed;
this.Generic = l2tpPayloadSpan;
this.Type = L7Type.L2TP;
}
public L7(PacketSpan <GenericHeader> payloadSpan, L7Type type)
{
this.L2TPPacketParsed = null;
this.Generic = payloadSpan;
this.Type = type;
}
public L4(PacketSpan <UDPHeader> udpSpan)
{
this.TCP = default;
this.UDP = default;
this.Type = IPProtocolNumber.UDP;
this.Generic = udpSpan.ToGenericSpan();
}
public L3(PacketSpan <PPPoESessionHeader> pppoeSpan)
{
this.IPv4 = default;
this.PPPoE = default;
this.Type = EthernetProtocolId.PPPoE_Session;
this.Generic = pppoeSpan.ToGenericSpan();
}
public L3(PacketSpan <IPv4Header> ipv4Span)
{
this.IPv4 = default;
this.PPPoE = default;
this.Type = EthernetProtocolId.IPv4;
this.Generic = ipv4Span.ToGenericSpan();
}
bool ParseL2_Ethernet(ref Packet pkt, PacketSpan <EthernetHeader> etherSpan)
{
if (etherSpan.IsEmpty(ref pkt))
{
SetError("Insufficient header data");
return(false);
}
this.L2 = new L2(etherSpan);
ref EthernetHeader ether = ref etherSpan.GetRefValue(ref pkt);
public PacketParsed(ref Packet pkt, int startPin = DefaultSize, PacketParseOption?options = null, int maxPacketSize = DefaultSize, PacketParseMode mode = PacketParseMode.Layer2, EthernetProtocolId layer3ProtocolId = EthernetProtocolId.Unknown)
{
this.ParseOption = options ?? DefaultOption;
maxPacketSize = maxPacketSize._DefaultSize(pkt.Length);
switch (mode)
{
case PacketParseMode.Layer2:
PacketSpan <EthernetHeader> etherSpan = pkt.GetSpan <EthernetHeader>(startPin._DefaultSize(pkt.PinHead), maxPacketSize: maxPacketSize);
ParseL2_Ethernet(ref pkt, etherSpan);
break;
case PacketParseMode.Layer3:
PacketSpan <GenericHeader> l3Span = pkt.GetSpan <GenericHeader>(startPin._DefaultSize(pkt.PinHead), size: 0, maxPacketSize: maxPacketSize);
ParseL3(ref pkt, l3Span, layer3ProtocolId);
break;
}
}
