I need help building a dictionary for the unique packets that this script captures that will then add them to the created PrettyTable. It needs to also keep track of the number times that the unique packets occur. The below is the code I have and what the dictionary needs. Thank you for your help! You will create a dictionary entry for each unique packet observered Unique Packets combination of SRC-IP, DST-IP, Protocol you will keep track of the count of each unique packet in the dictionary STRUCT UNPACK FORMATTING NOTES Format C Type Python type Standard size x pad byte no value c char bytes of length 1 b signed char integer 1 B unsigned char integer 1 ? _Bool bool 1 h short integer 2 H unsigned short integer 2 i int integer 4 I unsigned int integer 4 l long integer 4 L unsigned long integer 4 q long long integer 8 Q unsigned long long integer 8 n ssize_t integer N size_t integer e (6) float 2 f float float 4 d double float 8 s char[] bytes p char[] bytes P void* integer ENCODING Character Byte order Size Alignment big-endian standard none ! network (= big-endian) standard none IP Packet ''' import socket import os from prettytable import PrettyTable # Get the HOST to Sniff From hostname = socket.gethostname() HOST = socket.gethostbyname(hostname) #HOST = 'localhost' import ipaddress import struct class IP: def __init__(self, buff=None): header = struct.unpack('> 4 self.ihl = header[0] & 0xF self.tos = header[1] self.len = header[2] self.id = header[3] self.offset = header[4] self.ttl = header[5] self.protocol_num = header[6] self.sum = header[7] self.src = header[8] self.dst = header[9] # human readable IP addresses self.src_address = ipaddress.ip_address(self.src) self.dst_address = ipaddress.ip_address(self.dst) # map protocol constants to their names self.protocol_map = {1: "ICMP", 6: "TCP", 17: "UDP"} def main(): socket_protocol = socket.IPPROTO_IP sniffer = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket_protocol) sniffer.bind((HOST,0)) sniffer.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1) sniffer.ioctl(socket.SIO_RCVALL, socket.RCVALL_ON) captureDict = {} for i in range(1,10000): packet = sniffer.recvfrom(65565) # Wait for Packet basePacket = packet[0] # Extract Packet Data from tuple pckHeader = basePacket[0:20] # Extract the packet header ipOBJ = IP(pckHeader) # Create the IP Object # Lookup the protocol name try: protocolName = ipOBJ.protocol_map[ipOBJ.protocol_num] except: protocolName = "Unknown" print("SRC-IP :", ipOBJ.src_address) print("DST-IP :", ipOBJ.dst_address) print("Protocol:", protocolName) ''' Dictionary code HERE Once you have processed 10,000 packets update load your results into the prettytable and display. ''' tbl = PrettyTable(["Occurs", "SRC", "DST", "Protocol"]) print(tbl.get_string(reversesort=True)) sniffer.ioctl(socket.SIO_RCVALL, socket.RCVALL_OFF) if __name__ == '__main__': main().

1. I need help building a dictionary for the unique packets that this script captures that will then add
them to the created PrettyTable. It needs to also keep track of the number times that the unique
packets occur. The below is the code I have and what the dictionary needs. Thank you for your
help! You will create a dictionary entry for each unique packet observered Unique Packets
combination of SRC-IP, DST-IP, Protocol you will keep track of the count of each unique packet in
the dictionary STRUCT UNPACK FORMATTING NOTES Format C Type Python type Standard
size x pad byte no value c char bytes of length 1 b signed char integer 1 B unsigned char integer 1
? _Bool bool 1 h short integer 2 H unsigned short integer 2 i int integer 4 I unsigned int integer 4 l
long integer 4 L unsigned long integer 4 q long long integer 8 Q unsigned long long integer 8 n
ssize_t integer N size_t integer e (6) float 2 f float float 4 d double float 8 s char[] bytes p char[]
bytes P void* integer ENCODING Character Byte order Size Alignment big-endian standard none !
network (= big-endian) standard none IP Packet ''' import socket import os from prettytable import
PrettyTable # Get the HOST to Sniff From hostname = socket.gethostname() HOST =
socket.gethostbyname(hostname) #HOST = 'localhost' import ipaddress import struct class IP: def
__init__(self, buff=None): header = struct.unpack('> 4 self.ihl = header[0] & 0xF self.tos =
header[1] self.len = header[2] self.id = header[3] self.offset = header[4] self.ttl = header[5]
self.protocol_num = header[6] self.sum = header[7] self.src = header[8] self.dst = header[9] #
human readable IP addresses self.src_address = ipaddress.ip_address(self.src) self.dst_address
= ipaddress.ip_address(self.dst) # map protocol constants to their names self.protocol_map = {1:
"ICMP", 6: "TCP", 17: "UDP"} def main(): socket_protocol = socket.IPPROTO_IP sniffer =
socket.socket(socket.AF_INET, socket.SOCK_RAW, socket_protocol) sniffer.bind((HOST,0))
sniffer.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1) sniffer.ioctl(socket.SIO_RCVALL,
socket.RCVALL_ON) captureDict = {} for i in range(1,10000): packet = sniffer.recvfrom(65565) #
Wait for Packet basePacket = packet[0] # Extract Packet Data from tuple pckHeader =
basePacket[0:20] # Extract the packet header ipOBJ = IP(pckHeader) # Create the IP Object #
Lookup the protocol name try: protocolName = ipOBJ.protocol_map[ipOBJ.protocol_num] except:
protocolName = "Unknown" print("SRC-IP :", ipOBJ.src_address) print("DST-IP :",
ipOBJ.dst_address) print("Protocol:", protocolName) ''' Dictionary code HERE Once you have
processed 10,000 packets update load your results into the prettytable and display. ''' tbl =
PrettyTable(["Occurs", "SRC", "DST", "Protocol"]) print(tbl.get_string(reversesort=True))
sniffer.ioctl(socket.SIO_RCVALL, socket.RCVALL_OFF) if __name__ == '__main__': main()