Create ICMP_TCP_UDP.py

ICMP_TCP_UDP.py

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+#using scapy library
+# install scapy with cmd pip install scapy
+from scapy.all import sniff
+
+def icmp_parser(packet):
+    return {
+        "type": packet[1].type,
+        "code": packet[1].code,
+        "checksum": packet[1].chksum,
+    }
+
+def tcp_parser(packet):
+    return {
+        "src_port": packet[1].sport,
+        "dst_port": packet[1].dport,
+        "seq": packet[1].seq,
+        "ack": packet[1].ack,
+    }
+
+def udp_parser(packet):
+    return {
+        "src_port": packet[1].sport,
+        "dst_port": packet[1].dport,
+        "length": packet[1].len,
+    }
+
+def packet_callback(packet):
+    protocol_data = None
+
+    if packet.haslayer("ICMP"):
+        protocol = "ICMP"
+        protocol_data = icmp_parser(packet)
+    elif packet.haslayer("TCP"):
+        protocol = "TCP"
+        protocol_data = tcp_parser(packet)
+    elif packet.haslayer("UDP"):
+        protocol = "UDP"
+        protocol_data = udp_parser(packet)
+    else:
+        protocol = "Unknown"
+
+    print(f"Protocol: {protocol}")
+    if protocol_data:
+        print("Parsed Data:", protocol_data)
+
+# Start sniffing
+sniff(prn=packet_callback, count=10)