import os import random import time import numpy from math import sqrt, ceil, log from operator import itemgetter # TODO: double check this import # does it complain because libpcapreader is not a .py? import ID2TLib.libpcapreader as pr import matplotlib import Core.StatsDatabase as statsDB import ID2TLib.PcapFile as PcapFile import ID2TLib.Utility as Util from ID2TLib.IPv4 import IPAddress matplotlib.use('Agg', force=True) import matplotlib.pyplot as plt class Statistics: def __init__(self, pcap_file: PcapFile.PcapFile): """ Creates a new Statistics object. :param pcap_file: A reference to the PcapFile object """ # Fields self.pcap_filepath = pcap_file.pcap_file_path self.pcap_proc = None self.do_extra_tests = False self.file_info = None # Create folder for statistics database if required self.path_db = pcap_file.get_db_path() path_dir = os.path.dirname(self.path_db) if not os.path.isdir(path_dir): os.makedirs(path_dir) # Class instances self.stats_db = statsDB.StatsDatabase(self.path_db) def load_pcap_statistics(self, flag_write_file: bool, flag_recalculate_stats: bool, flag_print_statistics: bool, flag_non_verbose: bool): """ Loads the PCAP statistics for the file specified by pcap_filepath. If the database is not existing yet, the statistics are calculated by the PCAP file processor and saved into the newly created database. Otherwise the statistics are gathered directly from the existing database. :param flag_write_file: Indicates whether the statistics should be written additionally into a text file (True) or not (False) :param flag_recalculate_stats: Indicates whether eventually existing statistics should be recalculated :param flag_print_statistics: Indicates whether the gathered basic statistics should be printed to the terminal :param flag_non_verbose: Indicates whether certain prints should be made or not, to reduce terminal clutter """ # Load pcap and get loading time time_start = time.clock() # Inform user about recalculation of statistics and its reason if flag_recalculate_stats: print("Flag -r/--recalculate found. Recalculating statistics.") # Recalculate statistics if database does not exist OR param -r/--recalculate is provided if (not self.stats_db.get_db_exists()) or flag_recalculate_stats or self.stats_db.get_db_outdated(): self.pcap_proc = pr.pcap_processor(self.pcap_filepath, str(self.do_extra_tests)) self.pcap_proc.collect_statistics() self.pcap_proc.write_to_database(self.path_db) outstring_datasource = "by PCAP file processor." # only print summary of new db if -s flag not set if not flag_print_statistics and not flag_non_verbose: self.stats_summary_new_db() else: outstring_datasource = "from statistics database." # Load statistics from database self.file_info = self.stats_db.get_file_info() time_end = time.clock() print("Loaded file statistics in " + str(time_end - time_start)[:4] + " sec " + outstring_datasource) # Write statistics if param -e/--export provided if flag_write_file: self.write_statistics_to_file() # Print statistics if param -s/--statistics provided if flag_print_statistics: self.print_statistics() def get_file_information(self): """ Returns a list of tuples, each containing a information of the file. :return: a list of tuples, each consisting of (description, value, unit), where unit is optional. """ pdu_count = self.process_db_query("SELECT SUM(pktCount) FROM unrecognized_pdus") pdu_share = pdu_count / self.get_packet_count() * 100 last_pdu_timestamp = self.process_db_query( "SELECT MAX(timestampLastOccurrence) FROM unrecognized_pdus") return [("Pcap file path", self.pcap_filepath), ("Total packet count", self.get_packet_count(), "packets"), ("Recognized packets", self.get_packet_count() - pdu_count, "packets"), ("Unrecognized packets", pdu_count, "PDUs"), ("% Recognized packets", 100 - pdu_share, "%"), ("% Unrecognized packets", pdu_share, "%"), ("Last unknown PDU", last_pdu_timestamp), ("Capture duration", self.get_capture_duration(), "seconds"), ("Capture start", "\t" + str(self.get_pcap_timestamp_start())), ("Capture end", "\t" + str(self.get_pcap_timestamp_end()))] def get_general_file_statistics(self): """ Returns a list of tuples, each containing a file statistic. :return: a list of tuples, each consisting of (description, value, unit). """ return [("Avg. packet rate", self.file_info['avgPacketRate'], "packets/sec"), ("Avg. packet size", self.file_info['avgPacketSize'], "kbytes"), ("Avg. packets sent", self.file_info['avgPacketsSentPerHost'], "packets"), ("Avg. bandwidth in", self.file_info['avgBandwidthIn'], "kbit/s"), ("Avg. bandwidth out", self.file_info['avgBandwidthOut'], "kbit/s")] @staticmethod def write_list(desc_val_unit_list, func, line_ending="\n"): """ Takes a list of tuples (statistic name, statistic value, unit) as input, generates a string of these three values and applies the function func on this string. Before generating the string, it identifies text containing a float number, casts the string to a float and rounds the value to two decimal digits. :param desc_val_unit_list: The list of tuples consisting of (description, value, unit) :param func: The function to be applied to each generated string :param line_ending: The formatting string to be applied at the end of each string """ for entry in desc_val_unit_list: # Convert text containing float into float (description, value) = entry[0:2] if isinstance(value, str) and "." in value: try: value = float(value) except ValueError: pass # do nothing -> value was not a float # round float if isinstance(value, float): value = round(value, 4) # write into file if len(entry) == 3: unit = entry[2] func(description + ":\t" + str(value) + " " + unit + line_ending) else: func(description + ":\t" + str(value) + line_ending) def print_statistics(self): """ Prints the basic file statistics to the terminal. """ print("\nPCAP FILE INFORMATION ------------------------------") Statistics.write_list(self.get_file_information(), print, "") print("\nGENERAL FILE STATISTICS ----------------------------") Statistics.write_list(self.get_general_file_statistics(), print, "") print("\n") @staticmethod def calculate_entropy(frequency: list, normalized: bool = False): """ Calculates entropy and normalized entropy of list of elements that have specific frequency :param frequency: The frequency of the elements. :param normalized: Calculate normalized entropy :return: entropy or (entropy, normalized entropy) """ entropy, normalized_ent, n = 0, 0, 0 sum_freq = sum(frequency) for i, x in enumerate(frequency): p_x = float(frequency[i] / sum_freq) if p_x > 0: n += 1 entropy += - p_x * log(p_x, 2) if normalized: if log(n) > 0: normalized_ent = entropy / log(n, 2) return entropy, normalized_ent else: return entropy def calculate_complement_packet_rates(self, pps): """ Calculates the complement packet rates of the background traffic packet rates for each interval. Then normalize it to maximum boundary, which is the input parameter pps :return: normalized packet rates for each time interval. """ result = self.process_db_query( "SELECT lastPktTimestamp,pktsCount FROM interval_statistics ORDER BY lastPktTimestamp") # print(result) bg_interval_pps = [] complement_interval_pps = [] intervals_sum = 0 if result: # Get the interval in seconds for i, row in enumerate(result): if i < len(result) - 1: intervals_sum += ceil((int(result[i + 1][0]) * 10 ** -6) - (int(row[0]) * 10 ** -6)) interval = intervals_sum / (len(result) - 1) # Convert timestamp from micro to seconds, convert packet rate "per interval" to "per second" for row in result: bg_interval_pps.append((int(row[0]) * 10 ** -6, int(row[1] / interval))) # Find max PPS max_pps = max(bg_interval_pps, key=itemgetter(1))[1] for row in bg_interval_pps: complement_interval_pps.append((row[0], int(pps * (max_pps - row[1]) / max_pps))) return complement_interval_pps def get_tests_statistics(self): """ Writes the calculated basic defects tests statistics into a file. """ # self.stats_db.process_user_defined_query output is list of tuples, thus, we ned [0][0] to access data def count_frequncy(values_list): """ TODO : FILL ME :param values_list: :return: """ values, freq_output = [], [] for x in values_list: if x in values: freq_output[values.index(x)] += 1 else: values.append(x) freq_output.append(1) return values, freq_output # Payload Tests sum_payload_count = self.stats_db.process_user_defined_query("SELECT sum(payloadCount) FROM " "interval_statistics") pkt_count = self.stats_db.process_user_defined_query("SELECT packetCount FROM file_statistics") if sum_payload_count and pkt_count: payload_ratio = 0 if pkt_count[0][0] != 0: payload_ratio = float(sum_payload_count[0][0] / pkt_count[0][0] * 100) else: payload_ratio = -1 # TCP checksum Tests incorrect_checksum_count = self.stats_db.process_user_defined_query( "SELECT sum(incorrectTCPChecksumCount) FROM interval_statistics") correct_checksum_count = self.stats_db.process_user_defined_query( "SELECT avg(correctTCPChecksumCount) FROM interval_statistics") if incorrect_checksum_count and correct_checksum_count: incorrect_checksum_ratio = 0 if (incorrect_checksum_count[0][0] + correct_checksum_count[0][0]) != 0: incorrect_checksum_ratio = float(incorrect_checksum_count[0][0] / (incorrect_checksum_count[0][0] + correct_checksum_count[0][0]) * 100) else: incorrect_checksum_ratio = -1 # IP Src & Dst Tests result = self.stats_db.process_user_defined_query("SELECT ipAddress,pktsSent,pktsReceived FROM ip_statistics") data, src_frequency, dst_frequency = [], [], [] if result: for row in result: src_frequency.append(row[1]) dst_frequency.append(row[2]) ip_src_entropy, ip_src_norm_entropy = self.calculate_entropy(src_frequency, True) ip_dst_entropy, ip_dst_norm_entropy = self.calculate_entropy(dst_frequency, True) new_ip_count = self.stats_db.process_user_defined_query("SELECT newIPCount FROM interval_statistics") ip_novels_per_interval, ip_novels_per_interval_frequency = count_frequncy(new_ip_count) ip_novelty_dist_entropy = self.calculate_entropy(ip_novels_per_interval_frequency) # Ports Tests port0_count = self.stats_db.process_user_defined_query( "SELECT SUM(portCount) FROM ip_ports WHERE portNumber = 0") if not port0_count[0][0]: port0_count = 0 else: port0_count = port0_count[0][0] # FIXME: could be extended reserved_port_count = self.stats_db.process_user_defined_query( "SELECT SUM(portCount) FROM ip_ports WHERE portNumber IN (100,114,1023,1024,49151,49152,65535)") if not reserved_port_count[0][0]: reserved_port_count = 0 else: reserved_port_count = reserved_port_count[0][0] # TTL Tests result = self.stats_db.process_user_defined_query( "SELECT ttlValue,SUM(ttlCount) FROM ip_ttl GROUP BY ttlValue") data, frequency = [], [] for row in result: frequency.append(row[1]) ttl_entropy, ttl_norm_entropy = self.calculate_entropy(frequency, True) new_ttl_count = self.stats_db.process_user_defined_query("SELECT newTTLCount FROM interval_statistics") ttl_novels_per_interval, ttl_novels_per_interval_frequency = count_frequncy(new_ttl_count) ttl_novelty_dist_entropy = self.calculate_entropy(ttl_novels_per_interval_frequency) # Window Size Tests result = self.stats_db.process_user_defined_query("SELECT winSize,SUM(winCount) FROM tcp_win GROUP BY winSize") data, frequency = [], [] for row in result: frequency.append(row[1]) win_entropy, win_norm_entropy = self.calculate_entropy(frequency, True) new_win_size_count = self.stats_db.process_user_defined_query("SELECT newWinSizeCount FROM interval_statistics") win_novels_per_interval, win_novels_per_interval_frequency = count_frequncy(new_win_size_count) win_novelty_dist_entropy = self.calculate_entropy(win_novels_per_interval_frequency) # ToS Tests result = self.stats_db.process_user_defined_query( "SELECT tosValue,SUM(tosCount) FROM ip_tos GROUP BY tosValue") data, frequency = [], [] for row in result: frequency.append(row[1]) tos_entropy, tos_norm_entropy = self.calculate_entropy(frequency, True) new_tos_count = self.stats_db.process_user_defined_query("SELECT newToSCount FROM interval_statistics") tos_novels_per_interval, tos_novels_per_interval_frequency = count_frequncy(new_tos_count) tos_novelty_dist_entropy = self.calculate_entropy(tos_novels_per_interval_frequency) # MSS Tests result = self.stats_db.process_user_defined_query( "SELECT mssValue,SUM(mssCount) FROM tcp_mss GROUP BY mssValue") data, frequency = [], [] for row in result: frequency.append(row[1]) mss_entropy, mss_norm_entropy = self.calculate_entropy(frequency, True) new_mss_count = self.stats_db.process_user_defined_query("SELECT newMSSCount FROM interval_statistics") mss_novels_per_interval, mss_novels_per_interval_frequency = count_frequncy(new_mss_count) mss_novelty_dist_entropy = self.calculate_entropy(mss_novels_per_interval_frequency) result = self.stats_db.process_user_defined_query("SELECT SUM(mssCount) FROM tcp_mss WHERE mssValue > 1460") # The most used MSS < 1460. Calculate the ratio of the values bigger that 1460. if not result[0][0]: result = 0 else: result = result[0][0] big_mss = (result / sum(frequency)) * 100 output = [] if self.do_extra_tests: output = [("Payload ratio", payload_ratio, "%"), ("Incorrect TCP checksum ratio", incorrect_checksum_ratio, "%")] output = output + [("# IP addresses", sum([x[0] for x in new_ip_count]), ""), ("IP Src Entropy", ip_src_entropy, ""), ("IP Src Normalized Entropy", ip_src_norm_entropy, ""), ("IP Dst Entropy", ip_dst_entropy, ""), ("IP Dst Normalized Entropy", ip_dst_norm_entropy, ""), ("IP Novelty Distribution Entropy", ip_novelty_dist_entropy, ""), ("# TTL values", sum([x[0] for x in new_ttl_count]), ""), ("TTL Entropy", ttl_entropy, ""), ("TTL Normalized Entropy", ttl_norm_entropy, ""), ("TTL Novelty Distribution Entropy", ttl_novelty_dist_entropy, ""), ("# WinSize values", sum([x[0] for x in new_win_size_count]), ""), ("WinSize Entropy", win_entropy, ""), ("WinSize Normalized Entropy", win_norm_entropy, ""), ("WinSize Novelty Distribution Entropy", win_novelty_dist_entropy, ""), ("# ToS values", sum([x[0] for x in new_tos_count]), ""), ("ToS Entropy", tos_entropy, ""), ("ToS Normalized Entropy", tos_norm_entropy, ""), ("ToS Novelty Distribution Entropy", tos_novelty_dist_entropy, ""), ("# MSS values", sum([x[0] for x in new_mss_count]), ""), ("MSS Entropy", mss_entropy, ""), ("MSS Normalized Entropy", mss_norm_entropy, ""), ("MSS Novelty Distribution Entropy", mss_novelty_dist_entropy, ""), ("======================", "", "")] # Reasoning the statistics values if self.do_extra_tests: if payload_ratio > 80: output.append(("WARNING: Too high payload ratio", payload_ratio, "%.")) if payload_ratio < 30: output.append(("WARNING: Too low payload ratio", payload_ratio, "% (Injecting attacks that are carried " "out in the packet payloads is not " "recommmanded).")) if incorrect_checksum_ratio > 5: output.append(("WARNING: High incorrect TCP checksum ratio", incorrect_checksum_ratio, "%.")) if ip_src_norm_entropy > 0.65: output.append(("WARNING: High IP source normalized entropy", ip_src_norm_entropy, ".")) if ip_src_norm_entropy < 0.2: output.append(("WARNING: Low IP source normalized entropy", ip_src_norm_entropy, ".")) if ip_dst_norm_entropy > 0.65: output.append(("WARNING: High IP destination normalized entropy", ip_dst_norm_entropy, ".")) if ip_dst_norm_entropy < 0.2: output.append(("WARNING: Low IP destination normalized entropy", ip_dst_norm_entropy, ".")) if ttl_norm_entropy > 0.65: output.append(("WARNING: High TTL normalized entropy", ttl_norm_entropy, ".")) if ttl_norm_entropy < 0.2: output.append(("WARNING: Low TTL normalized entropy", ttl_norm_entropy, ".")) if ttl_novelty_dist_entropy < 1: output.append(("WARNING: Too low TTL novelty distribution entropy", ttl_novelty_dist_entropy, "(The distribution of the novel TTL values is suspicious).")) if win_norm_entropy > 0.6: output.append(("WARNING: High Window Size normalized entropy", win_norm_entropy, ".")) if win_norm_entropy < 0.1: output.append(("WARNING: Low Window Size normalized entropy", win_norm_entropy, ".")) if win_novelty_dist_entropy < 4: output.append(("WARNING: Low Window Size novelty distribution entropy", win_novelty_dist_entropy, "(The distribution of the novel Window Size values is suspicious).")) if tos_norm_entropy > 0.4: output.append(("WARNING: High ToS normalized entropy", tos_norm_entropy, ".")) if tos_norm_entropy < 0.1: output.append(("WARNING: Low ToS normalized entropy", tos_norm_entropy, ".")) if tos_novelty_dist_entropy < 0.5: output.append(("WARNING: Low ToS novelty distribution entropy", tos_novelty_dist_entropy, "(The distribution of the novel ToS values is suspicious).")) if mss_norm_entropy > 0.4: output.append(("WARNING: High MSS normalized entropy", mss_norm_entropy, ".")) if mss_norm_entropy < 0.1: output.append(("WARNING: Low MSS normalized entropy", mss_norm_entropy, ".")) if mss_novelty_dist_entropy < 0.5: output.append(("WARNING: Low MSS novelty distribution entropy", mss_novelty_dist_entropy, "(The distribution of the novel MSS values is suspicious).")) if big_mss > 50: output.append(("WARNING: High ratio of MSS > 1460", big_mss, "% (High fragmentation rate in Ethernet).")) if port0_count > 0: output.append(("WARNING: Port number 0 is used in ", port0_count, "packets (awkward-looking port).")) if reserved_port_count > 0: output.append(("WARNING: Reserved port numbers are used in ", reserved_port_count, "packets (uncommonly-used ports).")) return output def write_statistics_to_file(self): """ Writes the calculated basic statistics into a file. """ def _write_header(title: str): """ Writes the section header into the open file. :param title: The section title """ target.write("====================== \n") target.write(title + " \n") target.write("====================== \n") target = open(self.pcap_filepath + ".stat", 'w') target.truncate() _write_header("PCAP file information") Statistics.write_list(self.get_file_information(), target.write) _write_header("General statistics") Statistics.write_list(self.get_general_file_statistics(), target.write) _write_header("Tests statistics") Statistics.write_list(self.get_tests_statistics(), target.write) target.close() def get_capture_duration(self): """ :return: The duration of the capture in seconds """ return self.file_info['captureDuration'] def get_pcap_timestamp_start(self): """ :return: The timestamp of the first packet in the PCAP file """ return self.file_info['timestampFirstPacket'] def get_pcap_timestamp_end(self): """ :return: The timestamp of the last packet in the PCAP file """ return self.file_info['timestampLastPacket'] def get_pps_sent(self, ip_address: str): """ Calculates the sent packets per seconds for a given IP address. :param ip_address: The IP address whose packets per second should be calculated :return: The sent packets per seconds for the given IP address """ packets_sent = self.stats_db.process_db_query("SELECT pktsSent from ip_statistics WHERE ipAddress=?", False, (ip_address,)) capture_duration = float(self.get_capture_duration()) return int(float(packets_sent) / capture_duration) def get_pps_received(self, ip_address: str): """ Calculate the packets per second received for a given IP address. :param ip_address: The IP address used for the calculation :return: The number of packets per second received """ packets_received = self.stats_db.process_db_query("SELECT pktsReceived FROM ip_statistics WHERE ipAddress=?", False, (ip_address,)) capture_duration = float(self.get_capture_duration()) return int(float(packets_received) / capture_duration) def get_packet_count(self): """ :return: The number of packets in the loaded PCAP file """ return self.file_info['packetCount'] def get_most_used_ip_address(self): """ :return: The IP address/addresses with the highest sum of packets sent and received """ return Util.handle_most_used_outputs(self.process_db_query("most_used(ipAddress)")) def get_ttl_distribution(self, ip_address: str): """ TODO: FILL ME :param ip_address: :return: """ result = self.process_db_query('SELECT ttlValue, ttlCount from ip_ttl WHERE ipAddress="' + ip_address + '"') result_dict = {key: value for (key, value) in result} return result_dict def get_mss_distribution(self, ip_address: str): """ TODO: FILL ME :param ip_address: :return: """ result = self.process_db_query('SELECT mssValue, mssCount from tcp_mss WHERE ipAddress="' + ip_address + '"') result_dict = {key: value for (key, value) in result} return result_dict def get_win_distribution(self, ip_address: str): """ TODO: FILL ME :param ip_address: :return: """ result = self.process_db_query('SELECT winSize, winCount from tcp_win WHERE ipAddress="' + ip_address + '"') result_dict = {key: value for (key, value) in result} return result_dict def get_tos_distribution(self, ip_address: str): """ TODO: FILL ME :param ip_address: :return: """ result = self.process_db_query('SELECT tosValue, tosCount from ip_tos WHERE ipAddress="' + ip_address + '"') result_dict = {key: value for (key, value) in result} return result_dict def get_ip_address_count(self): """ TODO: FILL ME :return: """ return self.process_db_query("SELECT COUNT(*) FROM ip_statistics") def get_ip_addresses(self): """ TODO: FILL ME :return: """ return self.process_db_query("SELECT ipAddress FROM ip_statistics") def get_random_ip_address(self, count: int = 1): """ :param count: The number of IP addresses to return :return: A randomly chosen IP address from the dataset or iff param count is greater than one, a list of randomly chosen IP addresses """ ip_address_list = self.process_db_query("SELECT ipAddress from ip_statistics ORDER BY ipAddress ASC") if count == 1: return random.choice(ip_address_list) else: result_list = [] for i in range(0, count): random_ip = random.choice(ip_address_list) result_list.append(random_ip) ip_address_list.remove(random_ip) return result_list def get_ip_address_from_mac(self, mac_address: str): """ :param mac_address: the MAC address of which the IP shall be returned, if existing in DB :return: the IP address used in the dataset by a given MAC address """ return self.process_db_query("SELECT DISTINCT ipAddress FROM ip_mac WHERE macAddress = '" + mac_address + "'") def get_mac_addresses(self, ip_addresses: list): """ :return: The MAC addresses used in the dataset for the given IP addresses as a dictionary. """ return dict(self.process_db_query("SELECT DISTINCT ipAddress, macAddress from ip_mac WHERE ipAddress in (" + str(ip_addresses)[1:-1] + ")")) def get_mac_address(self, ip_address: str): """ :return: The MAC address used in the dataset for the given IP address. """ return self.process_db_query("SELECT DISTINCT macAddress from ip_mac WHERE ipAddress = '" + ip_address + "'") def get_most_used_ttl_value(self): """ :return: The most used TTL value. """ return self.process_db_query("SELECT ttlValue FROM (SELECT ttlValue, SUM(ttlCount) as occ FROM ip_ttl GROUP BY " "ttlValue) WHERE occ=(SELECT SUM(ttlCount) as occ FROM ip_ttl GROUP BY ttlValue " "ORDER BY occ DESC LIMIT 1) ORDER BY ttlValue ASC") def get_most_used_ip_class(self): """ :return: The most used IP class. """ return self.process_db_query("SELECT ipClass FROM (SELECT ipClass, COUNT(*) as occ from ip_statistics GROUP BY " "ipClass ORDER BY occ DESC) WHERE occ=(SELECT COUNT(*) as occ from ip_statistics " "GROUP BY ipClass ORDER BY occ DESC LIMIT 1) ORDER BY ipClass ASC") def get_most_used_win_size(self): """ :return: The most used window size. """ return self.process_db_query("SELECT winSize FROM (SELECT winSize, SUM(winCount) as occ FROM tcp_win GROUP BY " "winSize) WHERE occ=(SELECT SUM(winCount) as occ FROM tcp_win GROUP BY winSize " "ORDER BY occ DESC LIMIT 1) ORDER BY winSize ASC") def get_most_used_mss_value(self): """ :return: The most used mss value. """ return self.process_db_query("SELECT mssValue FROM (SELECT mssValue, SUM(mssCount) as occ FROM tcp_mss GROUP BY" " mssValue) WHERE occ=(SELECT SUM(mssCount) as occ FROM tcp_mss GROUP BY mssValue " "ORDER BY occ DESC LIMIT 1) ORDER BY mssValue ASC") def get_most_used_mss(self, ip_address: str): """ :param ip_address: The IP address whose used MSS should be determined :return: The TCP MSS value used by the IP address, or if the IP addresses never specified a MSS, then None is returned """ mss_value = self.process_db_query('SELECT mssValue from tcp_mss WHERE ipAddress="' + ip_address + '" AND mssCount == (SELECT MAX(mssCount) from tcp_mss WHERE ipAddress="' + ip_address + '")') if isinstance(mss_value, int): return mss_value elif isinstance(mss_value, list): if len(mss_value) == 0: return None else: mss_value.sort() return mss_value[0] else: return None def get_most_used_ttl(self, ip_address: str): """ :param ip_address: The IP address whose used TTL should be determined :return: The TTL value used by the IP address, or if the IP addresses never specified a TTL, then None is returned """ ttl_value = self.process_db_query('SELECT ttlValue from ip_ttl WHERE ipAddress="' + ip_address + '" AND ttlCount == (SELECT MAX(ttlCount) from ip_ttl WHERE ipAddress="' + ip_address + '")') if isinstance(ttl_value, int): return ttl_value elif isinstance(ttl_value, list): if len(ttl_value) == 0: return None else: ttl_value.sort() return ttl_value[0] else: return None def get_avg_delay_local_ext(self): """ Calculates the average delay of a packet for external and local communication, based on the tcp handshakes :return: tuple consisting of avg delay for local and external communication, (local, external) """ conv_delays = self.stats_db.process_user_defined_query("SELECT ipAddressA, ipAddressB, avgDelay FROM conv_statistics") if(conv_delays): external_conv = [] local_conv = [] for conv in conv_delays: IPA = IPAddress.parse(conv[0]) IPB = IPAddress.parse(conv[1]) #split into local and external conversations if(not IPA.is_private() or not IPB.is_private()): external_conv.append(conv) else: local_conv.append(conv) # calculate avg local and external delay by summing up the respective delays and dividing them by the number of conversations avg_delay_external = 0.0 avg_delay_local = 0.0 default_ext = False default_local = False if(local_conv): for conv in local_conv: avg_delay_local += conv[2] avg_delay_local = (avg_delay_local/len(local_conv)) * 0.001 #ms else: # no local conversations in statistics found avg_delay_local = 0.055 default_local = True if(external_conv): for conv in external_conv: avg_delay_external += conv[2] avg_delay_external = (avg_delay_external/len(external_conv)) * 0.001 #ms else: # no external conversations in statistics found avg_delay_external = 0.09 default_ext = True else: #if no statistics were found, use these numbers avg_delay_external = 0.09 avg_delay_local = 0.055 default_ext = True default_local = True # check whether delay numbers are consistent if avg_delay_local > avg_delay_external: avg_delay_external = avg_delay_local*1.2 # print information, that (default) values are used, that are not collected from the Input PCAP if default_ext or default_local: if default_ext and default_local: print("Warning: Could not collect average delays for local or external communication, using following values:") elif default_ext: print("Warning: Could not collect average delays for external communication, using following values:") elif default_local: print("Warning: Could not collect average delays for local communication, using following values:") print("Avg delay of external communication: {0}s, Avg delay of local communication: {1}s".format(avg_delay_external, avg_delay_local)) return avg_delay_local, avg_delay_external def get_filtered_degree(self, degree_type: str): """ gets the desired type of degree statistics and filters IPs with degree value zero :param degree_type: the desired type of degrees, one of the following: inDegree, outDegree, overallDegree :return: the filtered degrees """ degrees_raw = self.stats_db.process_user_defined_query( "SELECT ipAddress, %s FROM ip_degrees" % degree_type) degrees = [] if(degrees_raw): for deg in degrees_raw: if int(deg[1]) > 0: degrees.append(deg) return degrees def get_rnd_win_size(self, pkts_num): """ :param pkts_num: maximum number of window sizes, that should be returned :return: A list of randomly chosen window sizes with given length. """ sql_return = self.process_db_query("SELECT DISTINCT winSize FROM tcp_win ORDER BY winsize ASC;") if not isinstance(sql_return, list): return [sql_return] result = [] for i in range(0, min(pkts_num, len(sql_return))): result.append(random.choice(sql_return)) sql_return.remove(result[i]) return result def get_statistics_database(self): """ :return: A reference to the statistics database object """ return self.stats_db def process_db_query(self, query_string_in: str, print_results: bool = False): """ Executes a string identified previously as a query. This can be a standard SQL SELECT/INSERT query or a named query. :param query_string_in: The query to be processed :param print_results: Indicates whether the results should be printed to terminal :return: The result of the query """ return self.stats_db.process_db_query(query_string_in, print_results) def is_query(self, value: str): """ Checks whether the given string is a standard SQL query (SELECT, INSERT) or a named query. :param value: The string to be checked :return: True if the string is recognized as a query, otherwise False. """ if not isinstance(value, str): return False else: return (any(x in value.lower().strip() for x in self.stats_db.get_all_named_query_keywords()) or any(x in value.lower().strip() for x in self.stats_db.get_all_sql_query_keywords())) @staticmethod def calculate_standard_deviation(lst): """ Calculates the standard deviation of a list of numbers. :param lst: The list of numbers to calculate its SD. """ num_items = len(lst) mean = sum(lst) / num_items differences = [x - mean for x in lst] sq_differences = [d ** 2 for d in differences] ssd = sum(sq_differences) variance = ssd / num_items sd = sqrt(variance) return sd def plot_statistics(self, entropy: int, file_format: str = 'pdf'): # 'png' """ Plots the statistics associated with the dataset. :param entropy: the statistics entropy :param file_format: The format to be used to save the statistics diagrams. """ def plot_distribution(query_output, title, x_label, y_label, file_ending: str): """ TODO: FILL ME :param query_output: :param title: :param x_label: :param y_label: :param file_ending: :return: """ plt.gcf().clear() graphx, graphy = [], [] for row in query_output: graphx.append(row[0]) graphy.append(row[1]) plt.autoscale(enable=True, axis='both') plt.title(title) plt.xlabel(x_label) plt.ylabel(y_label) width = 0.1 plt.xlim([0, (max(graphx) * 1.1)]) plt.grid(True) plt.bar(graphx, graphy, width, align='center', linewidth=1, color='red', edgecolor='red') out = self.pcap_filepath.replace('.pcap', '_plot-' + title + file_ending) plt.savefig(out, dpi=500) return out def plot_ttl(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT ttlValue, SUM(ttlCount) FROM ip_ttl GROUP BY ttlValue") title = "TTL Distribution" x_label = "TTL Value" y_label = "Number of Packets" if query_output: return plot_distribution(query_output, title, x_label, y_label, file_ending) def plot_mss(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT mssValue, SUM(mssCount) FROM tcp_mss GROUP BY mssValue") title = "MSS Distribution" x_label = "MSS Value" y_label = "Number of Packets" if query_output: return plot_distribution(query_output, title, x_label, y_label, file_ending) def plot_win(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT winSize, SUM(winCount) FROM tcp_win GROUP BY winSize") title = "Window Size Distribution" x_label = "Window Size" y_label = "Number of Packets" if query_output: return plot_distribution(query_output, title, x_label, y_label, file_ending) def plot_protocol(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ plt.gcf().clear() result = self.stats_db.process_user_defined_query( "SELECT protocolName, SUM(protocolCount) FROM ip_protocols GROUP BY protocolName") if result: graphx, graphy = [], [] for row in result: graphx.append(row[0]) graphy.append(row[1]) plt.autoscale(enable=True, axis='both') plt.title("Protocols Distribution") plt.xlabel('Protocols') plt.ylabel('Number of Packets') width = 0.1 plt.xlim([0, len(graphx)]) plt.grid(True) # Protocols' names on x-axis x = range(0, len(graphx)) my_xticks = graphx plt.xticks(x, my_xticks) plt.bar(x, graphy, width, align='center', linewidth=1, color='red', edgecolor='red') out = self.pcap_filepath.replace('.pcap', '_plot-protocol' + file_ending) plt.savefig(out, dpi=500) return out else: print("Error plot protocol: No protocol values found!") def plot_port(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ plt.gcf().clear() result = self.stats_db.process_user_defined_query( "SELECT portNumber, SUM(portCount) FROM ip_ports GROUP BY portNumber") graphx, graphy = [], [] for row in result: graphx.append(row[0]) graphy.append(row[1]) plt.autoscale(enable=True, axis='both') plt.title("Ports Distribution") plt.xlabel('Ports Numbers') plt.ylabel('Number of Packets') width = 0.1 plt.xlim([0, max(graphx)]) plt.grid(True) plt.bar(graphx, graphy, width, align='center', linewidth=1, color='red', edgecolor='red') out = self.pcap_filepath.replace('.pcap', '_plot-port' + file_ending) plt.savefig(out, dpi=500) return out # This distribution is not drawable for big datasets def plot_ip_src(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ plt.gcf().clear() result = self.stats_db.process_user_defined_query( "SELECT ipAddress, pktsSent FROM ip_statistics") graphx, graphy = [], [] for row in result: graphx.append(row[0]) graphy.append(row[1]) plt.autoscale(enable=True, axis='both') plt.title("Source IP Distribution") plt.xlabel('Source IP') plt.ylabel('Number of Packets') width = 0.1 plt.xlim([0, len(graphx)]) plt.grid(True) # IPs on x-axis x = range(0, len(graphx)) my_xticks = graphx plt.xticks(x, my_xticks, rotation='vertical', fontsize=5) plt.tight_layout() # limit the number of xticks plt.locator_params(axis='x', nbins=20) plt.bar(x, graphy, width, align='center', linewidth=1, color='red', edgecolor='red') out = self.pcap_filepath.replace('.pcap', '_plot-ip-src' + file_ending) plt.savefig(out, dpi=500) return out # This distribution is not drawable for big datasets def plot_ip_dst(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ plt.gcf().clear() result = self.stats_db.process_user_defined_query( "SELECT ipAddress, pktsReceived FROM ip_statistics") graphx, graphy = [], [] for row in result: graphx.append(row[0]) graphy.append(row[1]) plt.autoscale(enable=True, axis='both') plt.title("Destination IP Distribution") plt.xlabel('Destination IP') plt.ylabel('Number of Packets') width = 0.1 plt.xlim([0, len(graphx)]) plt.grid(True) # IPs on x-axis x = range(0, len(graphx)) my_xticks = graphx plt.xticks(x, my_xticks, rotation='vertical', fontsize=5) plt.tight_layout() # limit the number of xticks plt.locator_params(axis='x', nbins=20) plt.bar(x, graphy, width, align='center', linewidth=1, color='red', edgecolor='red') out = self.pcap_filepath.replace('.pcap', '_plot-ip-dst' + file_ending) plt.savefig(out, dpi=500) return out def plot_interval_statistics(query_output, title, x_label, y_label, file_ending: str): """ TODO: FILL ME :param query_output: :param title: :param x_label: :param y_label: :param file_ending: :return: """ plt.gcf().clear() graphx, graphy = [], [] for row in query_output: graphx.append(row[0]) graphy.append(row[1]) plt.autoscale(enable=True, axis='both') plt.title(title) plt.xlabel(x_label) plt.ylabel(y_label) width = 0.5 plt.xlim([0, len(graphx)]) plt.grid(True) # timestamp on x-axis x = range(0, len(graphx)) # limit the number of xticks plt.locator_params(axis='x', nbins=20) plt.bar(x, graphy, width, align='center', linewidth=1, color='red', edgecolor='red') out = self.pcap_filepath.replace('.pcap', '_plot-' + title + file_ending) plt.savefig(out, dpi=500) return out def plot_interval_pkt_count(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT lastPktTimestamp, pktsCount FROM interval_statistics ORDER BY lastPktTimestamp") title = "Packet Rate" x_label = "Time Interval" y_label = "Number of Packets" if query_output: return plot_interval_statistics(query_output, title, x_label, y_label, file_ending) def plot_interval_ip_src_ent(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT lastPktTimestamp, ipSrcEntropy FROM interval_statistics ORDER BY lastPktTimestamp") title = "Source IP Entropy" x_label = "Time Interval" y_label = "Entropy" if query_output: return plot_interval_statistics(query_output, title, x_label, y_label, file_ending) def plot_interval_ip_dst_ent(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT lastPktTimestamp, ipDstEntropy FROM interval_statistics ORDER BY lastPktTimestamp") title = "Destination IP Entropy" x_label = "Time Interval" y_label = "Entropy" if query_output: return plot_interval_statistics(query_output, title, x_label, y_label, file_ending) def plot_interval_new_ip(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT lastPktTimestamp, newIPCount FROM interval_statistics ORDER BY lastPktTimestamp") title = "IP Novelty Distribution" x_label = "Time Interval" y_label = "Novel values count" if query_output: return plot_interval_statistics(query_output, title, x_label, y_label, file_ending) def plot_interval_new_port(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT lastPktTimestamp, newPortCount FROM interval_statistics ORDER BY lastPktTimestamp") title = "Port Novelty Distribution" x_label = "Time Interval" y_label = "Novel values count" if query_output: return plot_interval_statistics(query_output, title, x_label, y_label, file_ending) def plot_interval_new_ttl(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT lastPktTimestamp, newTTLCount FROM interval_statistics ORDER BY lastPktTimestamp") title = "TTL Novelty Distribution" x_label = "Time Interval" y_label = "Novel values count" if query_output: return plot_interval_statistics(query_output, title, x_label, y_label, file_ending) def plot_interval_new_tos(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT lastPktTimestamp, newToSCount FROM interval_statistics ORDER BY lastPktTimestamp") title = "ToS Novelty Distribution" x_label = "Time Interval" y_label = "Novel values count" if query_output: return plot_interval_statistics(query_output, title, x_label, y_label, file_ending) def plot_interval_new_win_size(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT lastPktTimestamp, newWinSizeCount FROM interval_statistics ORDER BY lastPktTimestamp") title = "Window Size Novelty Distribution" x_label = "Time Interval" y_label = "Novel values count" if query_output: return plot_interval_statistics(query_output, title, x_label, y_label, file_ending) def plot_interval_new_mss(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ query_output = self.stats_db.process_user_defined_query( "SELECT lastPktTimestamp, newMSSCount FROM interval_statistics ORDER BY lastPktTimestamp") title = "MSS Novelty Distribution" x_label = "Time Interval" y_label = "Novel values count" if query_output: return plot_interval_statistics(query_output, title, x_label, y_label, file_ending) def plot_interval_ip_dst_cum_ent(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ plt.gcf().clear() result = self.stats_db.process_user_defined_query( "SELECT lastPktTimestamp, ipDstCumEntropy FROM interval_statistics ORDER BY lastPktTimestamp") graphx, graphy = [], [] for row in result: graphx.append(row[0]) graphy.append(row[1]) # If entropy was not calculated do not plot the graph if graphy[0] != -1: plt.autoscale(enable=True, axis='both') plt.title("Destination IP Cumulative Entropy") # plt.xlabel('Timestamp') plt.xlabel('Time Interval') plt.ylabel('Entropy') plt.xlim([0, len(graphx)]) plt.grid(True) # timestamp on x-axis x = range(0, len(graphx)) # my_xticks = graphx # plt.xticks(x, my_xticks, rotation='vertical', fontsize=5) # plt.tight_layout() # limit the number of xticks plt.locator_params(axis='x', nbins=20) plt.plot(x, graphy, 'r') out = self.pcap_filepath.replace('.pcap', '_plot-interval-ip-dst-cum-ent' + file_ending) plt.savefig(out, dpi=500) return out def plot_interval_ip_src_cum_ent(file_ending: str): """ TODO: FILL ME :param file_ending: :return: """ plt.gcf().clear() result = self.stats_db.process_user_defined_query( "SELECT lastPktTimestamp, ipSrcCumEntropy FROM interval_statistics ORDER BY lastPktTimestamp") graphx, graphy = [], [] for row in result: graphx.append(row[0]) graphy.append(row[1]) # If entropy was not calculated do not plot the graph if graphy[0] != -1: plt.autoscale(enable=True, axis='both') plt.title("Source IP Cumulative Entropy") # plt.xlabel('Timestamp') plt.xlabel('Time Interval') plt.ylabel('Entropy') plt.xlim([0, len(graphx)]) plt.grid(True) # timestamp on x-axis x = range(0, len(graphx)) # my_xticks = graphx # plt.xticks(x, my_xticks, rotation='vertical', fontsize=5) # plt.tight_layout() # limit the number of xticks plt.locator_params(axis='x', nbins=20) plt.plot(x, graphy, 'r') out = self.pcap_filepath.replace('.pcap', '_plot-interval-ip-src-cum-ent' + file_ending) plt.savefig(out, dpi=500) return out def plot_in_degree(file_ending: str): """ Creates a Plot, visualizing the in-degree for every IP Address :param file_ending: The file extension for the output file containing the plot, e.g. "pdf" :return: A filepath to the file containing the created plot """ plt.gcf().clear() # retrieve data in_degree = self.get_filtered_degree("inDegree") graphx, graphy = [], [] for entry in in_degree: # degree values graphx.append(entry[1]) # IP labels graphy.append(entry[0]) # set labels plt.title("Indegree per IP Address") plt.ylabel('IpAddress') plt.xlabel('Indegree') #set width of the bars width = 0.3 # set scalings plt.figure(figsize=(int(len(graphx))/20 + 5, int(len(graphy)/5) + 5)) # these proportions just worked well #set limits of the axis plt.ylim([0, len(graphy)]) plt.xlim([0, max(graphx) + 10]) # display numbers at each bar for i, v in enumerate(graphx): plt.text(v + 1, i + .1, str(v), color='blue', fontweight='bold') # display grid for better visuals plt.grid(True) # plot the bar labels = graphy graphy = list(range(len(graphx))) plt.barh(graphy, graphx, width, align='center', linewidth=1, color='red', edgecolor='red') plt.yticks(graphy, labels) out = self.pcap_filepath.replace('.pcap', '_plot-In Degree of an IP' + file_ending) plt.tight_layout() plt.savefig(out,dpi=500) return out def plot_out_degree(file_ending: str): """ Creates a Plot, visualizing the out-degree for every IP Address :param file_ending: The file extension for the output file containing the plot, e.g. "pdf" :return: A filepath to the file containing the created plot """ plt.gcf().clear() # retrieve data out_degree = self.get_filtered_degree("outDegree") graphx, graphy = [], [] for entry in out_degree: # degree values graphx.append(entry[1]) # IP labels graphy.append(entry[0]) # set labels plt.title("Outdegree per IP Address") plt.ylabel('IpAddress') plt.xlabel('Outdegree') #set width of the bars width = 0.3 # set scalings plt.figure(figsize=(int(len(graphx))/20 + 5, int(len(graphy)/5) + 5)) # these proportions just worked well #set limits of the axis plt.ylim([0, len(graphy)]) plt.xlim([0, max(graphx) + 10]) # display numbers at each bar for i, v in enumerate(graphx): plt.text(v + 1, i + .1, str(v), color='blue', fontweight='bold') # display grid for better visuals plt.grid(True) # plot the bar labels = graphy graphy = list(range(len(graphx))) plt.barh(graphy, graphx, width, align='center', linewidth=1, color='red', edgecolor='red') plt.yticks(graphy, labels) out = self.pcap_filepath.replace('.pcap', '_plot-Out Degree of an IP' + file_ending) plt.tight_layout() plt.savefig(out,dpi=500) return out def plot_overall_degree(file_ending: str): """ Creates a Plot, visualizing the overall-degree for every IP Address :param file_ending: The file extension for the output file containing the plot, e.g. "pdf" :return: A filepath to the file containing the created plot """ plt.gcf().clear() # retrieve data overall_degree = self.get_filtered_degree("overallDegree") graphx, graphy = [], [] for entry in overall_degree: # degree values graphx.append(entry[1]) # IP labels graphy.append(entry[0]) # set labels plt.title("Overalldegree per IP Address") plt.ylabel('IpAddress') plt.xlabel('Overalldegree') #set width of the bars width = 0.3 # set scalings plt.figure(figsize=(int(len(graphx))/20 + 5, int(len(graphy)/5) + 5)) # these proportions just worked well #set limits of the axis plt.ylim([0, len(graphy)]) plt.xlim([0, max(graphx) + 10]) # display numbers at each bar for i, v in enumerate(graphx): plt.text(v + 1, i + .1, str(v), color='blue', fontweight='bold') # display grid for better visuals plt.grid(True) # plot the bar labels = graphy graphy = list(range(len(graphx))) plt.barh(graphy, graphx, width, align='center', linewidth=1, color='red', edgecolor='red') plt.yticks(graphy, labels) out = self.pcap_filepath.replace('.pcap', '_plot-Overall Degree of an IP' + file_ending) plt.tight_layout() plt.savefig(out,dpi=500) return out def plot_big_conv_ext_stat(attr:str, title:str, xlabel:str, suffix:str): """ Plots the desired statistc per connection as horizontal bar plot. Included are 'half-open' connections, where only one packet is exchanged. The given statistics table has to have at least the attributes 'ipAddressA', 'portA', 'ipAddressB', 'portB' and the specified additional attribute. Note: there may be cutoff/scaling problems within the plot if there is too little data. :param attr: The desired statistic, named with respect to its attribute in the given statistics table :param table: The statistics table :param title: The title of the created plot :param xlabel: The name of the x-axis of the created plot :param suffix: The suffix of the created file, including file extension :return: A filepath to the file containing the created plot """ plt.gcf().clear() result = self.stats_db.process_user_defined_query( "SELECT ipAddressA, portA, ipAddressB, portB, %s FROM conv_statistics_extended" % attr) if (result): graphy, graphx = [], [] # plot data in descending order result = sorted(result, key=lambda row: row[4]) # compute plot data for i, row in enumerate(result): addr1, addr2 = "%s:%d" % (row[0], row[1]), "%s:%d" % (row[2], row[3]) # adjust the justification of strings to improve appearance len_max = max(len(addr1), len(addr2)) addr1 = addr1.ljust(len_max) addr2 = addr2.ljust(len_max) # add plot data graphy.append("%s\n%s" % (addr1, addr2)) graphx.append(row[4]) # have x axis and its label appear at the top (instead of bottom) fig, ax = plt.subplots() ax.xaxis.tick_top() ax.xaxis.set_label_position("top") # compute plot height in inches for scaling the plot dist_mult_height = 0.55 # this value turned out to work well plt_height = len(graphy) * dist_mult_height title_distance = 1 + 0.012*52.8/plt_height # orginally, a good title distance turned out to be 1.012 with a plot height of 52.8 plt.gcf().set_size_inches(plt.gcf().get_size_inches()[0], plt_height) # set plot height plt.gcf().subplots_adjust(left=0.35) # set additional plot parameters plt.title(title, y=title_distance) plt.xlabel(xlabel) plt.ylabel('Connection') width = 0.5 plt.grid(True) plt.gca().margins(y=0) # removes the space between data and x-axis within the plot # plot the above data, first use plain numbers as graphy to maintain sorting plt.barh(range(len(graphy)), graphx, width, align='center', linewidth=0.5, color='red', edgecolor='red') # now change the y numbers to the respective address labels plt.yticks(range(len(graphy)), graphy) # save created figure out = self.pcap_filepath.replace('.pcap', suffix) plt.savefig(out, dpi=500, bbox_inches='tight', pad=0.2) return out def plot_packets_per_connection(file_ending: str): """ Plots the total number of exchanged packets per connection. :param file_ending: The file extension for the output file containing the plot :return: A filepath to the file containing the created plot """ title = 'Number of exchanged packets per connection' suffix = '_plot-PktCount per Connection Distribution' + file_ending # plot data and return outpath return plot_big_conv_ext_stat("pktsCount", title, "Number of packets", suffix) def plot_avg_pkts_per_comm_interval(file_ending: str): """ Plots the average number of exchanged packets per communication interval for every connection. :param file_ending: The file extension for the output file containing the plot :return: A filepath to the file containing the created plot """ title = 'Average number of exchanged packets per communication interval' suffix = '_plot-Avg PktCount Communication Interval Distribution' + file_ending # plot data and return outpath return plot_big_conv_ext_stat("avgIntervalPktCount", title, "Number of packets", suffix) def plot_avg_time_between_comm_interval(file_ending: str): """ Plots the average time between the communication intervals of every connection. :param file_ending: The file extension for the output file containing the plot :return: A filepath to the file containing the created plot """ title = 'Average time between communication intervals in seconds' suffix = '_plot-Avg Time Between Communication Intervals Distribution' + file_ending # plot data and return outpath return plot_big_conv_ext_stat("avgTimeBetweenIntervals", title, 'Average time between intervals', suffix) def plot_avg_comm_interval_time(file_ending: str): """ Plots the average duration of a communication interval of every connection. :param file_ending: The file extension for the output file containing the plot :return: A filepath to the file containing the created plot """ title = 'Average duration of a communication interval in seconds' suffix = '_plot-Avg Duration Communication Interval Distribution' + file_ending # plot data and return outpath return plot_big_conv_ext_stat("avgIntervalTime", title, 'Average interval time', suffix) def plot_total_comm_duration(file_ending: str): """ Plots the total communication duration of every connection. :param file_ending: The file extension for the output file containing the plot :return: A filepath to the file containing the created plot """ title = 'Total communication duration in seconds' suffix = '_plot-Total Communication Duration Distribution' + file_ending # plot data and return outpath return plot_big_conv_ext_stat("totalConversationDuration", title, 'Duration', suffix) def plot_comm_histogram(attr:str, title:str, label:str, suffix:str): """ Plots a histogram about the specified attribute for communications. :param attr: The statistics attribute for this histogram :param title: The title of the histogram :param label: The xlabel of the histogram :param suffix: The file suffix :return: The path to the created plot """ plt.gcf().clear() result_raw = self.stats_db.process_user_defined_query( "SELECT %s FROM conv_statistics_extended" % attr) # return without plotting if no data available if not result_raw: return None result = [] for entry in result_raw: result.append(entry[0]) # if title would be cut off, set minimum width plt_size = plt.gcf().get_size_inches() min_width = len(title) * 0.12 if plt_size[0] < min_width: plt.gcf().set_size_inches(min_width, plt_size[1]) # set plot size # set additional plot parameters plt.title(title) plt.ylabel("Relative frequency of connections") plt.xlabel(label) width = 0.5 plt.grid(True) # create 11 bins bins = [] max_val = max(result) for i in range(0, 11): bins.append(i * max_val/10) # set weights normalize histogram weights = numpy.ones_like(result)/float(len(result)) # plot the above data, first use plain numbers as graphy to maintain sorting plt.hist(result, bins=bins, weights=weights, color='red', edgecolor='red', align="mid", rwidth=0.5) plt.xticks(bins) # save created figure out = self.pcap_filepath.replace('.pcap', suffix) plt.savefig(out, dpi=500, bbox_inches='tight', pad=0.2) return out def plot_histogram_degree(degree_type:str, title:str, label:str, suffix:str): """ Plots a histogram about the specified type for the degree of an IP. :param degree_type: The type of degree, i.e. inDegree, outDegree or overallDegree :param title: The title of the histogram :param label: The xlabel of the histogram :param suffix: The file suffix :return: The path to the created plot """ plt.gcf().clear() result_raw = self.get_filtered_degree(degree_type) # return without plotting if no data available if not result_raw: return None result = [] for entry in result_raw: result.append(entry[1]) # set additional plot parameters plt.title(title) plt.ylabel("Relative frequency of IPs") plt.xlabel(label) width = 0.5 plt.grid(True) # create 11 bins bins = [] max_val = max(result) for i in range(0, 11): bins.append(int(i * max_val/10)) # set weights normalize histogram weights = numpy.ones_like(result)/float(len(result)) # plot the above data, first use plain numbers as graphy to maintain sorting plt.hist(result, bins=bins, weights=weights, color='red', edgecolor='red', align="mid", rwidth=0.5) plt.xticks(bins) # save created figure out = self.pcap_filepath.replace('.pcap', suffix) plt.savefig(out, dpi=500, bbox_inches='tight', pad=0.2) return out ttl_out_path = plot_ttl('.' + file_format) print(".", end="", flush=True) mss_out_path = plot_mss('.' + file_format) print(".", end="", flush=True) win_out_path = plot_win('.' + file_format) print(".", end="", flush=True) protocol_out_path = plot_protocol('.' + file_format) print(".", end="", flush=True) plot_interval_pktCount = plot_interval_pkt_count('.' + file_format) print(".", end="", flush=True) if entropy: plot_interval_ip_src_ent = plot_interval_ip_src_ent('.' + file_format) print(".", end="", flush=True) plot_interval_ip_dst_ent = plot_interval_ip_dst_ent('.' + file_format) print(".", end="", flush=True) plot_interval_ip_src_cum_ent = plot_interval_ip_src_cum_ent('.' + file_format) print(".", end="", flush=True) plot_interval_ip_dst_cum_ent = plot_interval_ip_dst_cum_ent('.' + file_format) print(".", end="", flush=True) plot_interval_new_ip = plot_interval_new_ip('.' + file_format) print(".", end="", flush=True) plot_interval_new_port = plot_interval_new_port('.' + file_format) print(".", end="", flush=True) plot_interval_new_ttl = plot_interval_new_ttl('.' + file_format) print(".", end="", flush=True) plot_interval_new_tos = plot_interval_new_tos('.' + file_format) print(".", end="", flush=True) plot_interval_new_win_size = plot_interval_new_win_size('.' + file_format) print(".", end="", flush=True) plot_interval_new_mss = plot_interval_new_mss('.' + file_format) print(".", end="", flush=True) plot_hist_indegree_out = plot_histogram_degree("inDegree", "Histogram - Ingoing degree per IP Address", "Ingoing degree", "_plot-Histogram Ingoing Degree per IP" + file_format) print(".", end="", flush=True) plot_hist_outdegree_out = plot_histogram_degree("outDegree", "Histogram - Outgoing degree per IP Address", "Outgoing degree", "_plot-Histogram Outgoing Degree per IP" + file_format) print(".", end="", flush=True) plot_hist_overalldegree_out = plot_histogram_degree("overallDegree", "Histogram - Overall degree per IP Address", "Overall degree", "_plot-Histogram Overall Degree per IP" + file_format) print(".", end="", flush=True) plot_hist_pkts_per_connection_out = plot_comm_histogram("pktsCount", "Histogram - Number of exchanged packets per connection", "Number of packets", "_plot-Histogram PktCount per Connection" + "." + file_format) print(".", end="", flush=True) plot_hist_avgpkts_per_commint_out = plot_comm_histogram("avgIntervalPktCount", "Histogram - Average number of exchanged packets per communication interval", "Average number of packets", "_plot-Histogram Avg PktCount per Interval per Connection" + "." + file_format) print(".", end="", flush=True) plot_hist_avgtime_betw_commints_out = plot_comm_histogram("avgTimeBetweenIntervals", "Histogram - Average time between communication intervals in seconds", "Average time between intervals", "_plot-Histogram Avg Time Between Intervals per Connection" + "." + file_format) print(".", end="", flush=True) plot_hist_avg_int_time_per_connection_out = plot_comm_histogram("avgIntervalTime", "Histogram - Average duration of a communication interval in seconds", "Average interval time", "_plot-Histogram Avg Interval Time per Connection" + "." + file_format) print(".", end="", flush=True) plot_hist_total_comm_duration_out = plot_comm_histogram("totalConversationDuration", "Histogram - Total communication duration in seconds", "Duration", "_plot-Histogram Communication Duration per Connection" + "." + file_format) print(".", end="", flush=True) plot_out_degree = plot_out_degree('.' + file_format) print(".", end="", flush=True) plot_in_degree = plot_in_degree('.' + file_format) print(".", end="", flush=True) plot_overall_degree = plot_overall_degree('.' + file_format) print(".", end="", flush=True) plot_packets_per_connection_out = plot_packets_per_connection('.' + file_format) print(".", end="", flush=True) plot_avg_pkts_per_comm_interval_out = plot_avg_pkts_per_comm_interval('.' + file_format) print(".", end="", flush=True) plot_avg_time_between_comm_interval_out = plot_avg_time_between_comm_interval('.' + file_format) print(".", end="", flush=True) plot_avg_comm_interval_time_out = plot_avg_comm_interval_time("." + file_format) print(".", end="", flush=True) plot_total_comm_duration_out = plot_total_comm_duration("." + file_format) print(" done.") # Time consuming plot # port_out_path = plot_port('.' + format) # Not drawable for too many IPs # ip_src_out_path = plot_ip_src('.' + format) # ip_dst_out_path = plot_ip_dst('.' + format) print("Saved plots in the input PCAP directory.") def stats_summary_post_attack(self, added_packets): """ Prints a summary of relevant statistics after an attack is injected :param added_packets: sum of packets added by attacks, gets updated if more than one attack :return: None """ total_packet_count = self.get_packet_count() + added_packets added_packets_share = added_packets / total_packet_count * 100 timespan = self.get_capture_duration() summary = [("Total packet count", total_packet_count, "packets"), ("Added packet count", added_packets, "packets"), ("Share of added packets", added_packets_share, "%"), ("Capture duration", timespan, "seconds")] print("\nPOST INJECTION STATISTICS SUMMARY --------------------------") self.write_list(summary, print, "") print("------------------------------------------------------------") def stats_summary_new_db(self): """ Prints a summary of relevant statistics when a new db is created :return: None """ self.file_info = self.stats_db.get_file_info() print("\nNew database has been generated, printing statistics summary... ") total_packet_count = self.get_packet_count() pdu_count = self.process_db_query("SELECT SUM(pktCount) FROM unrecognized_pdus") if pdu_count is None: pdu_count = 0 pdu_share = pdu_count / total_packet_count * 100 last_pdu_timestamp = self.process_db_query( "SELECT MAX(timestampLastOccurrence) FROM unrecognized_pdus") timespan = self.get_capture_duration() summary = [("Total packet count", total_packet_count, "packets"), ("Recognized packets", total_packet_count - pdu_count, "packets"), ("Unrecognized packets", pdu_count, "PDUs"), ("% Recognized packets", 100 - pdu_share, "%"), ("% Unrecognized packets", pdu_share, "%"), ("Last unknown PDU", last_pdu_timestamp), ("Capture duration", timespan, "seconds")] print("\nPCAP FILE STATISTICS SUMMARY ------------------------------") self.write_list(summary, print, "") print("------------------------------------------------------------")