scapy 中sniff指定的数据包并打印指定信息

在理解这篇文章前可以先看看这两篇文章：

https://www.cnblogs.com/liyuanhong/p/10925582.html

https://www.cnblogs.com/liyuanhong/p/10925832.html

1、抓取报文，并打印出来

#将抓取到的报文的summary打印出来
sniff(filter="icmp", prn=lambda x:x.summary(), count=10)

#抓取tcp报文，并打印目的地ip地址
sniff(filter="tcp", prn=lambda x:x[TCP].dst, count=10)

抓取源地址为172.31.100.222的端口为80的tcp报文
sniff(filter="ip src 172.31.100.222 and tcp and tcp port 80", prn=lambda x:x.summary())

或者定义一个回调函数：

def packet_callback(packet):
    print packet.show()

sniff(prn=packet_callback, count=10)

#coding:utf-8
from scapy.all import *
#显示网卡信息
#show_interfaces()

def getRaw(p):
    print("aaa")
    #判断该类是否有Raw
    if hasattr(p,"Raw"):
        pass
    else:
        print(p[Raw])
        
def getRaw1(p):
    raw = None
    p.sprintf("%IP.dst%")
    hexdump(p)
    try:
        print("=================================")
        raw = p[Raw]
        raw.show()
        #print(raw.load)
        #raw.sprintf("%Raw.load%")except:
        pass
        

dpkg = sniff(filter="tcp",count=10,prn=getRaw1)

'''
for i in dpkg:
    print("------------------------------------------")
    #i.show()
    
    
'''