下面开始构造HTTP数据包，

IP层和TCP层使用python的Impacket库，http内容自行填写。

复制代码 代码如下:

!/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:

-------------------------------------------------------------------------------

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()

运行后抓包如下：