熱線電話:13121318867

登錄
首頁精彩閱讀python原始套接字編程示例分享
python原始套接字編程示例分享
2018-07-09
收藏

python原始套接字編程示例分享

在實驗中需要自己構造單獨的HTTP數據報文,而使用SOCK_STREAM進行發送數據包,需要進行完整的TCP交互。因此想使用原始套接字進行編程,直接構造數據包,并在IP層進行發送,即采用SOCK_RAW進行數據發送。使用SOCK_RAW的優勢是,可以對數據包進行完整的修改,可以處理IP層上的所有數據包,對各字段進行修改,而不受UDP和TCP的限制。

下面開始構造HTTP數據包,

IP層和TCP層使用python的Impacket庫,http內容自行填寫。

復制代碼代碼如下:

#!/usr/bin/env python

#-------------------------------------------------------------------------------
# Name:     raw_http.py
# Purpose:       construct a raw http get packet
#
# Author:    Yangjun
#
# Created:       08/02/2014
# Copyright:   (c) Yangjun 2014
# Licence:       <your licence>
#-------------------------------------------------------------------------------

import sys
import socket
from impacket import ImpactDecoder, ImpactPacket

def main():

    if len(sys.argv) < 3:
        print "Use: %s <src ip> <dst ip>" % sys.argv[0]
        print "Use: %s <src ip> <dst ip> <cnt>" % sys.argv[0]
        sys.exit(1)
    elif len(sys.argv) == 3:
        src = sys.argv[1]
        dst = sys.argv[2]
        cnt = 1
    elif len(sys.argv) ==4:
        src = sys.argv[1]
        dst = sys.argv[2]
        cnt = sys.argv[3]
    else:
        print "Input error!"
        sys.exit(1)
#print src, dst
    ip = ImpactPacket.IP()
    ip.set_ip_src(src)
    ip.set_ip_dst(dst)

    # Create a new ICMP packet of type ECHO.
    icmp = ImpactPacket.ICMP()
    tcp = ImpactPacket.TCP()
    tcp.set_th_sport(55968)
    tcp.set_th_dport(80)
    tcp.set_th_seq(1)
    tcp.set_th_ack(1)
    tcp.set_th_flags(0x18)
    tcp.set_th_win(64)

    tcp.contains( ImpactPacket.Data("GET /att/DIYLife/41264/528 HTTP/1.1\r\nHost: 192.168.111.1\r\nAccept-Encoding: identity\r\n\r\n"))

    ip.contains(tcp)

    # Open a raw socket. Special permissions are usually required.
    s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_TCP)
    s.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)
    seq_id = 0
    while cnt >= 1:
        # Calculate its checksum.
        seq_id = seq_id + 1
        tcp.set_th_seq(seq_id)
        tcp.calculate_checksum()

        # Send it to the target host.
        s.sendto(ip.get_packet(), (dst,80))
        cnt= cnt -1

if __name__ == '__main__':
    main()

運行后抓包如下:

數據分析咨詢請掃描二維碼

若不方便掃碼,搜微信號:CDAshujufenxi

數據分析師資訊
更多

OK
客服在線
立即咨詢
日韩人妻系列无码专区视频,先锋高清无码,无码免费视欧非,国精产品一区一区三区无码
客服在線
立即咨詢