Wireshake grab bag, fly autumn send message, python

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# Coding=utf-8#import Socket #udp =socket.socket (socket.af_inet,socket. SOCK_DGRAM) #udp. Connect (' localhost ', 2425) #udp. Send (' 1:100:aaaaa:zhang:32:hello every body ') #udp. Send (' 1_lbt4_ 10#32899#002481627512#0#0#0:1289671407:flyingzl:flyingz l:288: A day, like March ') #coding =utf-8import dpktimport Sendpktfrom socket import Inet_aton from time import strftimeimport socketimport typesimport uuid# Local Gateway MAC address can be obtained as follows: # c:\users\administrator>arp-a# interface: 192.168.0.100---0xb# Internet address Physical Address type # 192.168.0.1 00-03-47-c a-e4-5c dynamic mask_mac= ' 4c-5e-0c-b1-50-29 ' def get_local_mac (): ' Get native MAC address ' mac=uuid.uuid1 (). HEX[-12:] return '-'. Joi N ([mac[(I-1) *2:2*i] for I in range (1,7)]) def send_msg (Kwargs): "Send message, Kwargs parameter is a Dict object" if Type (Kwargs) is not types. dicttype:return# Native IP address local_ip=kwargs.get (' src ', Socket.gethostbyname (Socket.gethostname ())) #转码后的源ip地址src_ip = Inet_aton (LOCAL_IP) #转码后的目的ip地址dst_ip =inet_aton (kwargs.get (' DST ')) #本机mac地址local_mac =kwargs.get (' Src_mac ', get_ Local_Mac ()) #转码后的源mac地址src_mac =pack_mac (Local_mac) #判断remote_ip和local_ip是否在同一个网段 # transcoding the destination MAC address Dst_mac=pack_mac ( Kwargs.get (' Dst_mac ')) if Trans (local_ip) ==trans (Kwargs.get (' DST ')) Else Pack_mac (MASK_MAC) host=kwargs.get (' Host ', Socket.gethostname ()) user=kwargs.get (' User ', ' user ') Msg=kwargs.get (' msg ', ' Hello ') #找到第一个网络端口, modify it according to your own circumstances # Students with VirtualBox, VMware, or wireless cards have to modify their own device=sendpkt.findalldevs () [0] #飞鸽监听本地的UDP 2425 Port udp=dpkt.udp.udp (dport=242 5,sport=2425) #向飞鸽发送消息命令字 #6291458表示下线 #6291457表示上线 #288表示发送信息 #如果是飞秋, 65664 This state will be displayed on each other as two suns msg= "1_lbt4_10#65664#%s# 0#0#0:%s:%s:%s:288:%s "% (local_mac.replace ('-', '), int (strftime ('%m%d%h%m%s ')) +100000000,user,host,msg) msg= Msg.encode ("Utf-8") udp.data+=msg Udp.ulen=len (UDP) Ip=dpkt.ip.ip (src=src_ip,dst=dst_ip,data=udp,p=dpkt.ip.ip_pro TO_UDP) #重新计算ip的长度, otherwise the message cannot be sent out Ip.len=len (IP) ether=dpkt.ethernet.ethernet (Dst=dst_mac, Src=src_ma C, type=0x0800, DATA=IP) sendpkt.sendpacket (str (ether), DeviCE) def trans (ip,mask= ' 255.255.255.0 '): ' Determine whether two IP addresses are in the same network segment ' ' Str=[' Ip=ip.split (".")   Mask=mask.split (".") For Index,item in Enumerate (IP): str.append (int (item) &int (Mask[index])) return str def pack_mac (mac,pattern = '-'): ' network card address switched to Ethernet MAC address for example "08-00-27-ba-f7-e5" to "\x08\x00 ' \xba\xf7\xe5" "Mac=mac.split (Pattern.lower ()) Retu RN "". Join ([Chr (int (' 0x ' +x,16)) for x in Mac]) if __name__== "__main__": s={' src ': ' 192.168.155.1 ', ' DST ' : ' 192.168.155.1 ', ' src_mac ': ' Ff-ff-ff-ff-ff-ff ', #这个地址最好别写错, you can see your friend's MAC address ' Dst_mac ' from the Flying Pigeon: ' ff-ff-ff-f  F-ff-ff ', ' host ': ' Haha ', ' user ': ' hehe ', ' msg ': ' Overtime? '   } send_msg (s)

Wireshake grab, fly autumn send message, Python