public override IEnumerable <AbstractPacket> GetSubPackets(bool includeSelfReference)
{
if (includeSelfReference)
{
yield return(this);
}
AbstractPacket packet = null;
try {
if (this.dsap == (byte)ServiceAccessPointType.SubNetworkAccessProtocol)
{
if (PacketStartIndex + 8 < PacketEndIndex)
{
if (this.etherType == (ushort)Ethernet2Packet.EtherTypes.IPv4)//IPv4
//packet=new IPv4Packet(this.ParentFrame, PacketStartIndex+8, PacketEndIndex);
{
IPv4Packet.TryParse(this.ParentFrame, PacketStartIndex + 8, PacketEndIndex, out packet);
}
else if (this.etherType == (ushort)Ethernet2Packet.EtherTypes.ARP)//ARP
//packet=new Ethernet2Packet(this.ParentFrame, PacketStartIndex+8, PacketEndIndex);
{
packet = new ArpPacket(this.ParentFrame, PacketStartIndex + 8, PacketEndIndex);
}
else
{
packet = new RawPacket(this.ParentFrame, PacketStartIndex + 8, PacketEndIndex);
}
}
}
else if (this.dsap == (byte)ServiceAccessPointType.HpExtendedLLC && this.etherType == (ushort)Ethernet2Packet.EtherTypes.HPSW)
{
if (PacketStartIndex + 10 < PacketEndIndex)
{
//skip HP Extended LLC positions...
packet = new HpSwitchProtocolPacket(this.ParentFrame, PacketStartIndex + 3 + 3 + 2 + 2, PacketEndIndex);
}
}
else //Not 802.2 SNAP or HPSW
{
if (PacketStartIndex + 3 < PacketEndIndex)
{
packet = new RawPacket(this.ParentFrame, PacketStartIndex + 3, PacketEndIndex);
}
}
}
catch (Exception e) {
//packet=new RawPacket(this.ParentFrame, PacketStartIndex+14, PacketEndIndex);
SharedUtils.Logger.Log("Exception when parsing inner packet of LLC: " + e.Message, SharedUtils.Logger.EventLogEntryType.Error);
packet = new RawPacket(this.ParentFrame, PacketStartIndex + 3, PacketEndIndex);
}
if (packet != null)
{
yield return(packet);
foreach (AbstractPacket subPacket in packet.GetSubPackets(false))
{
yield return(subPacket);
}
}
}
internal static AbstractPacket GetPacketForType(ushort etherType, Frame parentFrame, int newPacketStartIndex, int newPacketEndIndex)
{
AbstractPacket packet;
try {
//if(this.ParentFrame.Data[PacketStartIndex+12]==0x08 && this.ParentFrame.Data[PacketStartIndex+13]==0x00) {
if (etherType == (ushort)Ethernet2Packet.EtherTypes.IPv4 && IPv4Packet.TryParse(parentFrame, newPacketStartIndex, newPacketEndIndex, out packet))
{
//IPv4 packet
//packet = new IPv4Packet(parentFrame, newPacketStartIndex, newPacketEndIndex);
}
else if (etherType == (ushort)Ethernet2Packet.EtherTypes.IPv6)
{
//IPv6 packet
packet = new IPv6Packet(parentFrame, newPacketStartIndex, newPacketEndIndex);
}
//else if(this.ParentFrame.Data[PacketStartIndex+12]==0x08 && this.ParentFrame.Data[PacketStartIndex+13]==0x06) {
else if (etherType == (ushort)Ethernet2Packet.EtherTypes.ARP)
{
packet = new ArpPacket(parentFrame, newPacketStartIndex, newPacketEndIndex);
//ARP-packet
}
else if (etherType == (ushort)Ethernet2Packet.EtherTypes.IEEE802_1Q)
{
//VLAN
packet = new IEEE_802_1Q_VlanPacket(parentFrame, newPacketStartIndex, newPacketEndIndex);
}
else if (etherType == (ushort)Ethernet2Packet.EtherTypes.MPLS)
{
packet = new Mpls(parentFrame, newPacketStartIndex, newPacketEndIndex);
}
else if (etherType == (ushort)Ethernet2Packet.EtherTypes.PPPoE)
{
packet = new PointToPointOverEthernetPacket(parentFrame, newPacketStartIndex, newPacketEndIndex);
}
else if (etherType == (ushort)Ethernet2Packet.EtherTypes.xHayesTunnel)
{
packet = new Ethernet2Packet(parentFrame, newPacketStartIndex + 4, newPacketEndIndex);
}
//etherType might actually be a content length if it is an IEEE 802.3 packet
else if (etherType < 0x0600)
{
//the etherType showed to actually be a length value
packet = new LogicalLinkControlPacket(parentFrame, newPacketStartIndex, newPacketEndIndex);
}
else
{
//something else
packet = new RawPacket(parentFrame, newPacketStartIndex, newPacketEndIndex);
}
}
catch (Exception) {
packet = new RawPacket(parentFrame, newPacketStartIndex, newPacketEndIndex);
}
return(packet);
}
public override IEnumerable <AbstractPacket> GetSubPackets(bool includeSelfReference)
{
//same as for Ethernet2Packet.cs
if (includeSelfReference)
{
yield return(this);
}
if (PacketStartIndex + 16 < PacketEndIndex)
{
AbstractPacket packet;
if (this.protocol == (ushort)Ethernet2Packet.EtherTypes.IPv4 && IPv4Packet.TryParse(this.ParentFrame, PacketStartIndex + 16, PacketEndIndex, out packet))
{
//IPv4 packet
//packet=new IPv4Packet(this.ParentFrame, PacketStartIndex+16, PacketEndIndex);
}
else if (this.protocol == (ushort)Ethernet2Packet.EtherTypes.IPv6)
{
//IPv6 packet
packet = new IPv6Packet(this.ParentFrame, PacketStartIndex + 16, PacketEndIndex);
}
//else if(this.ParentFrame.Data[PacketStartIndex+12]==0x08 && this.ParentFrame.Data[PacketStartIndex+13]==0x06) {
else if (this.protocol == (ushort)Ethernet2Packet.EtherTypes.ARP)
{
packet = new ArpPacket(this.ParentFrame, PacketStartIndex + 16, PacketEndIndex);
//ARP-packet
}
else if (this.protocol == (ushort)Ethernet2Packet.EtherTypes.IEEE802_1Q)
{
//VLAN
packet = new IEEE_802_1Q_VlanPacket(this.ParentFrame, PacketStartIndex + 16, PacketEndIndex);
}
else if (this.protocol == (ushort)Ethernet2Packet.EtherTypes.PPPoE)
{
packet = new PointToPointOverEthernetPacket(this.ParentFrame, PacketStartIndex + 16, PacketEndIndex);
}
//etherType might actually be a content length if it is an IEEE 802.3 packet
else if (this.protocol < 0x0600)
{
//the etherType showed to actually be a length value
packet = new LogicalLinkControlPacket(this.ParentFrame, PacketStartIndex + 16, PacketEndIndex);
}
else
{
//something else
packet = new RawPacket(this.ParentFrame, PacketStartIndex + 16, PacketEndIndex);
}
yield return(packet);
foreach (AbstractPacket subPacket in packet.GetSubPackets(false))
{
yield return(subPacket);
}
}
}
public override IEnumerable <AbstractPacket> GetSubPackets(bool includeSelfReference)
{
//throw new Exception("The method or operation is not implemented.");
if (includeSelfReference)
{
yield return(this);
}
if (PacketStartIndex + 4 < PacketEndIndex && this.protocolCode != null)//there is room for data
{
AbstractPacket packet;
//check the protocolCode
if (this.protocolCode.Value == (ushort)Ethernet2Packet.EtherTypes.IPv4 && IPv4Packet.TryParse(ParentFrame, PacketStartIndex + 4, PacketEndIndex, out packet))
{
//packet =new IPv4Packet(ParentFrame, PacketStartIndex+4, PacketEndIndex);
}
else if (this.protocolCode.Value == (ushort)Ethernet2Packet.EtherTypes.IPv6)
{
packet = new IPv6Packet(ParentFrame, PacketStartIndex + 4, PacketEndIndex);
}
else if (this.protocolCode.Value == (ushort)Ethernet2Packet.EtherTypes.ARP)//not sure if ARP packets are used inside cHDLC frames
{
packet = new ArpPacket(ParentFrame, PacketStartIndex + 4, PacketEndIndex);
}
else if (this.protocolCode.Value == (ushort)Ethernet2Packet.EtherTypes.IEEE802_1Q)
{
//VLAN
packet = new IEEE_802_1Q_VlanPacket(ParentFrame, PacketStartIndex + 4, PacketEndIndex);
}
else if (this.protocolCode.Value == (ushort)Ethernet2Packet.EtherTypes.PPPoE)
{
packet = new PointToPointOverEthernetPacket(ParentFrame, PacketStartIndex + 4, PacketEndIndex);
}
else
{
//something else
packet = new RawPacket(ParentFrame, PacketStartIndex + 4, PacketEndIndex);
}
yield return(packet);
foreach (AbstractPacket subPacket in packet.GetSubPackets(false))
{
yield return(subPacket);
}
}
}
