Fix #1

d4-tlsf.go

@@ -265,12 +265,7 @@ func main() {
 		}
 	}
 
-	var dec gopacket.Decoder
-	var ok bool
-	if dec, ok = gopacket.DecodersByLayerName["Ethernet"]; !ok {
-		log.Fatal("No eth decoder")
-	}
-	source := gopacket.NewPacketSource(handle, dec)
+	source := gopacket.NewPacketSource(handle, handle.LinkType())
 	source.NoCopy = true
 	Info("Starting to read packets\n")
 	count := 0
@@ -294,12 +289,32 @@ func main() {
 	w.Add(1)
 	go processCompletedSession(jobQ, &w)
 
+	var eth layers.Ethernet
+	var ip4 layers.IPv4
+	var ip6 layers.IPv6
+	parser := gopacket.NewDecodingLayerParser(layers.LayerTypeEthernet, &eth, &ip4, &ip6)
+	decoded := []gopacket.LayerType{}
+
 	for packet := range source.Packets() {
 		count++
 		Debug("PACKET #%d\n", count)
-		data := packet.Data()
-		bytes += int64(len(data))
 
+		data := packet.Data()
+
+		if err := parser.DecodeLayers(data, &decoded); err != nil {
+			// Well it sures complaing about not knowing how to decode TCP
+		}
+
+		fmt.Printf("%s\n", ip4.SrcIP)
+		//		fmt.Printf("%s", hex.Dump(decoded))
+
+		for _, layerType := range decoded {
+			switch layerType {
+			case layers.LayerTypeIPv6:
+				fmt.Println("    IP6 ", ip6.SrcIP, ip6.DstIP)
+			case layers.LayerTypeIPv4:
+
+				fmt.Println("    IP4 ", ip4.SrcIP, ip4.DstIP)
 				// defrag the IPv4 packet if required
 				if !*nodefrag {
 					ip4Layer := packet.Layer(layers.LayerTypeIPv4)
@@ -341,6 +356,11 @@ func main() {
 					assembler.AssembleWithContext(packet.NetworkLayer().NetworkFlow(), tcp, &c)
 				}
 
+			}
+		}
+
+		bytes += int64(len(data))
+
 		var done bool
 		select {
 		case <-signalChan: