/// <summary>
/// 截获包基本信息
/// </summary>
/// <returns></returns>
public static DevicePacket ConvertPacketToDevice(this Packet packet)
{
DevicePacket devPacket = new DevicePacket();
devPacket.Protocol = "未知";
devPacket.DataLen = packet.Bytes.Length;
EthernetPacket ethernetPacket = packet.GetPacketType <EthernetPacket>() as EthernetPacket;
if (ethernetPacket != null)
{
devPacket = packet.GetEthernetPacket(ethernetPacket, devPacket);
return(devPacket);
}
#region "暂时不处理协议"
//PPPPacket ppp = packet.GetPacketType<PPPPacket>();
//if (ppp != null)
//{
// devPacket.Protocol = "PPP";
// devPacket.SourceAddress = "---";
// devPacket.DestinationAddress = "---";
// devPacket.Desc = $"协议类型:{ppp.Protocol.ToString()}";
// return devPacket;
//}
#endregion
return(devPacket);
}
public static DevicePacket GetEthernetPacket(this Packet packet, EthernetPacket ethernetPacket, DevicePacket devPacket)
{
//如果是IP类型
IpPacket ipPacket = packet.GetPacketType <IpPacket>();
if (ipPacket != null)
{
if (ipPacket.Version == IpVersion.IPv4)
{
devPacket.Protocol = "IPv4";
}
else
{
devPacket.Protocol = "IPv6";
}
devPacket.SourceAddress = ipPacket.SourceAddress.ToString();
devPacket.DestinationAddress = ipPacket.DestinationAddress.ToString();
devPacket.Desc = $"[下层协议:{ipPacket.NextHeader.ToString()}[版本:{ipPacket.Version.ToString()}]";
TcpPacket tcpPacket = packet.GetPacketType <TcpPacket>();
if (tcpPacket != null)
{
devPacket.Protocol = "TCP";
devPacket.SourcePort = tcpPacket.SourcePort.ToString();
devPacket.DestinationPort = tcpPacket.DestinationPort.ToString();
return(devPacket);
}
UdpPacket udpPacket = packet.GetPacketType <UdpPacket>();
if (udpPacket != null)
{
devPacket.Protocol = "UDP";
devPacket.SourcePort = udpPacket.SourcePort.ToString();
devPacket.DestinationPort = udpPacket.DestinationPort.ToString();
return(devPacket);
}
#region "暂时不处理协议"
//ICMPv4Packet icmpv4Packet = packet.GetPacketType<ICMPv4Packet>();
//if (icmpv4Packet != null)
//{
// devPacket.Protocol = "ICMPv4";
// devPacket.Desc = $"校验:{icmpv4Packet.Checksum.ToString()},类型:{icmpv4Packet.TypeCode.ToString()},序列号:{icmpv4Packet.Sequence.ToString()}";
// return devPacket;
//}
//ICMPv6Packet icmpv6Packet = packet.GetPacketType<ICMPv6Packet>();
//if (icmpv6Packet != null)
//{
// devPacket.Protocol = "ICMPv6";
// devPacket.Desc = $"Code:{icmpv6Packet.Code.ToString()},Type:{icmpv6Packet.Type.ToString()}";
// return devPacket;
//}
//IGMPv2Packet imgpv2Packet = packet.GetPacketType<IGMPv2Packet>();
//if (imgpv2Packet != null)
//{
// devPacket.Protocol = "IGMPv2";
// devPacket.Desc = $"只适用于IGMPv2,组地址:{imgpv2Packet.GroupAddress.ToString()},类型:{imgpv2Packet.Type.ToString()}";
// return devPacket;
//}
#endregion
return(devPacket);
}
#region "暂时不处理协议"
//ARPPacket arpPacket = packet.GetPacketType<ARPPacket>();
//if (arpPacket != null)
//{
// devPacket.Protocol = "ARP";
// devPacket.SourceAddress = ArpHelper.CovnertMacToStr(arpPacket.SenderHardwareAddress.GetAddressBytes());
// devPacket.DestinationAddress = ArpHelper.CovnertMacToStr(arpPacket.TargetHardwareAddress.GetAddressBytes());
// devPacket.Desc = $"Arp操作方式:{arpPacket.Operation.ToString()},发送者:{arpPacket.SenderProtocolAddress.ToString()},目标:{arpPacket.TargetProtocolAddress.ToString()}";
// return devPacket;
//}
//WakeOnLanPacket wakeOnLanPacket = packet.GetPacketType<WakeOnLanPacket>();
//if (wakeOnLanPacket != null)
//{
// devPacket.Protocol = "Wake On Lan";
// devPacket.DestinationAddress = ArpHelper.CovnertMacToStr(wakeOnLanPacket.DestinationMAC.GetAddressBytes());
// devPacket.Desc = $"唤醒网络地址:{wakeOnLanPacket.DestinationMAC.ToString()},有效性:{wakeOnLanPacket.IsValid().ToString()}";
// return devPacket;
//}
//PPPoEPacket pPPoEPacket = packet.GetPacketType<PPPoEPacket>();
//if (pPPoEPacket != null)
//{
// devPacket.Protocol = "PPPoE";
// devPacket.Desc = $"{pPPoEPacket.Type.ToString()},{pPPoEPacket.Version.ToString()}";
// return devPacket;
//}
#endregion
return(devPacket);
}
