private void AnalyzeICMPv6Packet(Packet packet)
{
if (!(packet.PayloadPacket.PayloadPacket is ICMPv6Packet))
{
return;
}
try
{
ICMPv6Types type = ((ICMPv6Packet)packet.PayloadPacket.PayloadPacket).Type;
switch (type)
{
case ICMPv6Types.NeighborSolicitation: // Neighbor solicitation
OnNewICMPv6Solicitation(new PacketEventArgs(packet));
break;
case ICMPv6Types.NeighborAdvertisement: // Neighbor advertisement
OnNewICMPv6Advertisement(new PacketEventArgs(packet));
break;
}
}
catch (ArgumentOutOfRangeException)
{
}
}
private static void AnalyzeICMPv6Packet(Packet packet)
{
if (!(packet.PayloadPacket.PayloadPacket is ICMPv6Packet))
{
return;
}
try
{
ICMPv6Types type = ((ICMPv6Packet)packet.PayloadPacket.PayloadPacket).Type;
if (type == ICMPv6Types.NeighborAdvertisement)
{
ushort payloadLen = ((IPv6Packet)packet.PayloadPacket).PayloadLength;
byte[] flags = new byte[4];
flags[0] = (packet.PayloadPacket.PayloadPacket).Bytes[4];
flags[1] = (packet.PayloadPacket.PayloadPacket).Bytes[5];
flags[2] = (packet.PayloadPacket.PayloadPacket).Bytes[6];
flags[3] = (packet.PayloadPacket.PayloadPacket).Bytes[7];
Data.Neighbor neighbor = Program.CurrentProject.data.GetNeighbor(((EthernetPacket)packet).SourceHwAddress);
if (neighbor != null)
{
// Si el payload UDP es 24 bytes, y los flags son 0x40000000 (sol) puede ser un linux, y no un windows (0x60000000, sol ovr).
if ((flags[0] == 0x40) && (flags[1] == 0x00) && (flags[2] == 0x00) && (flags[3] == 0x00))
{
// Linux
if (neighbor.osPlatform == Data.Platform.Unknow)
{
neighbor.osPlatform = Data.Platform.Linux;
}
}
else if ((flags[0] == 0x60) && (flags[1] == 0x00) && (flags[2] == 0x00) && (flags[3] == 0x00))
{
// Windows
if (neighbor.osPlatform == Data.Platform.Unknow)
{
neighbor.osPlatform = Data.Platform.Windows;
}
}
}
}
}
catch (ArgumentOutOfRangeException)
{
}
}
