Python实现ARP攻击检测与防御

import socket
import struct
import fcntl
import sys
import time
import tkinter as tk
from tkinter import messagebox

ETH_P_ALL = 0x0003
ETH_LEN = 14
ARP_REQUEST = 0x0001
ARP_REPLY = 0x0002
ICMP_ECHO_REQUEST = 8
ICMP_ECHO_REPLY = 0
TCP_SYN = 0x02

ip_mac_dict = {}
attack_source_dict = {}

# 获取本机MAC地址
def get_mac_address(ifname):
    with open('/sys/class/net/' + ifname + '/address') as f:
        mac_address = f.read().strip()
    return mac_address

# 发送ARP请求
def send_arp_request(ifname, src_ip, src_mac, dst_ip):
    s = socket.socket(socket.AF_PACKET, socket.SOCK_RAW, socket.htons(ETH_P_ALL))
    s.bind((ifname, ETH_P_ALL))
    dst_mac = 'ff:ff:ff:ff:ff:ff'
    arp_packet = struct.pack('!6s6s2s2s1s1s2s6s4s6s4s', bytes.fromhex(dst_mac.replace(':', '')), bytes.fromhex(src_mac.replace(':', '')), bytes.fromhex('08 06'), bytes.fromhex('00 01'), bytes.fromhex('08 00'), bytes.fromhex('06 04'), bytes.fromhex('00 01'), bytes.fromhex(src_mac.replace(':', '')), socket.inet_aton(src_ip), bytes.fromhex('00 00 00 00 00 00'), socket.inet_aton(dst_ip))
    s.send(arp_packet)

# 发送ARP应答
def send_arp_reply(ifname, dst_ip, dst_mac, src_ip, src_mac):
    s = socket.socket(socket.AF_PACKET, socket.SOCK_RAW, socket.htons(ETH_P_ALL))
    s.bind((ifname, ETH_P_ALL))
    arp_packet = struct.pack('!6s6s2s2s1s1s2s6s4s6s4s', bytes.fromhex(dst_mac.replace(':', '')), bytes.fromhex(src_mac.replace(':', '')), bytes.fromhex('08 06'), bytes.fromhex('00 02'), bytes.fromhex('08 00'), bytes.fromhex('06 04'), bytes.fromhex('00 02'), bytes.fromhex(src_mac.replace(':', '')), socket.inet_aton(src_ip), bytes.fromhex(dst_mac.replace(':', '')), socket.inet_aton(dst_ip))
    s.send(arp_packet)

# 发送ICMP应答
def send_icmp_reply(ifname, dst_ip, dst_mac, src_ip):
    s = socket.socket(socket.AF_PACKET, socket.SOCK_RAW, socket.htons(ETH_P_ALL))
    s.bind((ifname, ETH_P_ALL))
    dst_mac = ip_mac_dict[dst_ip]  # 获取目标主机的MAC地址
    icmp_packet = struct.pack('!6s6s2s1s1s2s4s4s', bytes(dst_mac.replace(':', ''), 'utf-8'), bytes(src_mac.replace(':', ''), 'utf-8'), bytes.fromhex('08 00'), bytes.fromhex('45'), bytes.fromhex('00 1c'), bytes.fromhex('00 00'), bytes.fromhex('40 00'), bytes.fromhex('40 01'), bytes.fromhex('00 00 00 00'), socket.inet_aton(src_ip), socket.inet_aton(dst_ip), bytes.fromhex('00 00'), bytes.fromhex('00 00'), bytes.fromhex('08 00'), bytes.fromhex('00 00'), bytes.fromhex('b5 7d'), bytes.fromhex('00 01'), bytes.fromhex('00 00'))
    s.send(icmp_packet)

# 发送TCP SYN
def send_tcp_syn(ifname, src_ip, src_mac, dst_ip, dst_port):
    s = socket.socket(socket.AF_PACKET, socket.SOCK_RAW, socket.htons(ETH_P_ALL))
    s.bind((ifname, ETH_P_ALL))
    dst_mac = ip_mac_dict[dst_ip]  # 获取目标主机的MAC地址
    tcp_packet = struct.pack('!6s6s2s2s2s1s1s2s4s4s2s2s', bytes.fromhex(dst_mac.replace(':', '')), bytes.fromhex(src_mac.replace(':', '')), bytes.fromhex('08 00'), bytes.fromhex('45'), bytes.fromhex('00 28'), bytes.fromhex('00 00'), bytes.fromhex('40 00'), bytes.fromhex('40 06'), bytes.fromhex('00 00 00 00'), socket.inet_aton(src_ip), socket.inet_aton(dst_ip), bytes.fromhex('00 00'), bytes.fromhex('00 00'), bytes.fromhex('00 00'), bytes.fromhex('00 00'), bytes.fromhex('50 02'), bytes.fromhex('00 00'), bytes.fromhex('00 00'))
    tcp_packet += struct.pack('!H', dst_port)
    tcp_packet += struct.pack('!H', 0x1234)
    tcp_packet += struct.pack('!I', 0)
    tcp_packet += struct.pack('!I', 0)
    tcp_packet += bytes.fromhex('50 02 20 00')
    s.send(tcp_packet)

# 解析ARP包
def parse_arp_packet(packet):
    src_mac = ':'.join(['%02x' % b for b in packet[6:12]])
    src_ip = socket.inet_ntoa(packet[28:32])
    dst_ip = socket.inet_ntoa(packet[38:42])
    arp_op = struct.unpack('!H', packet[20:22])[0]
    if arp_op == ARP_REQUEST:
        send_arp_reply(ifname, dst_ip, get_mac_address(ifname), src_ip, src_mac)
    elif arp_op == ARP_REPLY:
        ip_mac_dict[src_ip] = src_mac

# 解析ICMP包
def parse_icmp_packet(packet):
    src_mac = ':'.join(['%02x' % b for b in packet[6:12]])
    src_ip = socket.inet_ntoa(packet[26:30])
    dst_ip = socket.inet_ntoa(packet[30:34])
    icmp_type = struct.unpack('!B', packet[34:35])[0]
    icmp_code = struct.unpack('!B', packet[35:36])[0]
    if icmp_type == ICMP_ECHO_REQUEST:
        send_icmp_reply(ifname, dst_ip, get_mac_address(ifname), src_ip)

# 解析TCP包
def parse_tcp_packet(packet):
    src_mac = ':'.join(['%02x' % b for b in packet[6:12]])
    src_ip = socket.inet_ntoa(packet[26:30])
    dst_ip = socket.inet_ntoa(packet[30:34])
    tcp_flags = struct.unpack('!B', packet[47:48])[0]
    if tcp_flags == TCP_SYN:
        attack_source_dict[src_ip] = src_mac

# 监听网络数据包
def sniff_packets(ifname):
    s = socket.socket(socket.AF_PACKET, socket.SOCK_RAW, socket.htons(ETH_P_ALL))
    s.bind((ifname, ETH_P_ALL))
    while True:
        packet = s.recvfrom(2048)[0]
        if len(packet) < ETH_LEN:
            continue
        eth_type = struct.unpack('!H', packet[12:14])[0]
        if eth_type == 0x0806:
            parse_arp_packet(packet)
        elif eth_type == 0x0800:
            ip_proto = struct.unpack('!B', packet[23:24])[0]
            if ip_proto == 0x01:
                parse_icmp_packet(packet)
            elif ip_proto == 0x06:
                parse_tcp_packet(packet)

# 检测ICMP Flood攻击
def detect_icmp_flood():
    if len(ip_mac_dict) == 0:
        return '并没有遭到ICMP Flood攻击'
    for ip in ip_mac_dict.keys():
        count = 0
        for src_ip in attack_source_dict.keys():
            if src_ip == ip:
                count += 1
        if count > 100:
            return '遭到ICMP Flood攻击'
    return '并没有遭到ICMP Flood攻击'

# 检测TCP攻击
def detect_tcp_attack():
    if len(ip_mac_dict) == 0:
        return '并没有遭到TCP攻击'
    for ip in ip_mac_dict.keys():
        count = 0
        for src_ip in attack_source_dict.keys():
            if src_ip == ip:
                count += 1
        if count > 10:
            return '遭到TCP攻击'
    return '并没有遭到TCP攻击'

# 检测ARP欺骗攻击
def detect_arp_spoofing():
    if len(ip_mac_dict) == 0:
        return '并没有遭到ARP欺骗攻击'
    for ip, mac in ip_mac_dict.items():
        if mac != get_mac_address(ifname):
            return '遭到ARP欺骗攻击'
    return '并没有遭到ARP欺骗攻击'

# 扫描局域网内活动主机的IP地址和MAC地址
def scan_network(ifname):
    active_hosts = {}
    for i in range(1, 255):
        dst_ip = '192.168.197.' + str(i)
        send_arp_request(ifname, '192.168.197.1', get_mac_address(ifname), dst_ip)
        time.sleep(0.1)
        # 此处需要根据实际情况修改，以获取ARP应答
        # response = send_arp_reply(ifname, timeout=1)
        # if response is not None:
        #     active_hosts[response['src_ip']] = response['src_mac']
    return active_hosts

# 保存记录到本地文件
def save_records():
    active_hosts = scan_network(ifname)
    with open('records.txt', 'w') as f:
        f.write('活动主机IP地址\t\tMAC地址\n')
        for ip, mac in ip_mac_dict.items():
            f.write(ip + '\t' + mac + '\n')
        f.write('\n攻击源IP地址\t\tMAC地址\n')
        for ip, mac in attack_source_dict.items():
            f.write(ip + '\t' + mac + '\n')
        f.write('\nICMP Flood攻击：' + detect_icmp_flood() + '\n')
        f.write('TCP攻击：' + detect_tcp_attack() + '\n')
        f.write('ARP欺骗攻击：' + detect_arp_spoofing() + '\n')
        f.write('')

# 创建可视化界面
def create_gui():
    root = tk.Tk()
    root.title('ARP攻击检测防护软件')
    root.geometry('300x200')

    # 扫描按钮
    def scan_button_click():
        scan_network(ifname)
        messagebox.showinfo('提示', '扫描完成')

    scan_button = tk.Button(root, text='扫描', command=scan_button_click)
    scan_button.pack(pady=10)

    # 检测按钮
    def detect_button_click():
        result = 'IP地址\t\tMAC地址\n'
        for ip, mac in ip_mac_dict.items():
            result += ip + '\t' + mac + '\n'
        result += '\n攻击源IP地址\t\tMAC地址\n'
        for ip, mac in attack_source_dict.items():
            result += ip + '\t' + mac + '\n'
        result += '\nICMP Flood攻击：' + detect_icmp_flood() + '\n'
        result += 'TCP攻击：' + detect_tcp_attack() + '\n'
        result += 'ARP欺骗攻击：' + detect_arp_spoofing() + '\n'
        messagebox.showinfo('检测结果', result)

    detect_button = tk.Button(root, text='检测', command=detect_button_click)
    detect_button.pack(pady=10)

    # 保存按钮
    def save_button_click():
        save_records()
        messagebox.showinfo('提示', '记录已保存到本地文件')

    save_button = tk.Button(root, text='保存', command=save_button_click)
    save_button.pack(pady=10)

    root.mainloop()

# 主函数
if __name__ == '__main__':
    if len(sys.argv) < 2:
        print('Usage: python arp_attack_detection.py <interface>')
        sys.exit(1)
    ifname = sys.argv[1]
    create_gui()