Python Raw Socket使用示例(发送TCP SYN数据包)
2017-02-03 11:44
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import sys
import time
import socket
import struct
import random
def SendPacketData (Buffer = None , DestIP = "127.0.0.1" , DestPort = 0) :
"""SendPacketData"""
if Buffer is None :
return False
try:
Socket = socket.socket(socket.AF_INET,socket.SOCK_RAW)
Socket.setsockopt(socket.IPPROTO_IP,socket.IP_HDRINCL,1)
Socket.setsockopt(socket.SOL_SOCKET,socket.SO_SNDTIMEO,2000)
except:
Socket.close()
return False
try:
Socket.sendto(Buffer,0,(DestIP , DestPort))
except:
Socket.close()
return True
def SetPacketAddress (Number = 1) :
"""SetPakcetAddress"""
return [".".join(["%d" % random.randint(1 , 0xFF) for i in range(0,4)]) for n in range(0 , Number)]
def SetPacketData (Length = 32) :
"""SetPacketData"""
return "".join(["%s" % chr(random.randint(0 , 255)) for n in range(Length)])
def SetPacketCheckSum (Buffer = None) :
"""SetPacketCheckSum"""
if Buffer == None :
return False
if len(Buffer) % 2 :
Buffer += '/0'
return ~sum([(ord(Buffer[n + 1]) << 8) + ord(Buffer
) for n in range(0 , len(Buffer) , 2)])
#or return ~sum([ord(Buffer
) + ord(Buffer[n + 1]) * 256 for n in range(0 , len(Buffer) , 2)])
def SynSendInit (DestIP = "127.0.0.1" , DestPort = 80) :
"""SynSendInit"""
IpHdrLen = 20
TcpHdrLen = 20
IpVerlen = (4 << 4 | IpHdrLen / 4)
IpTotal_len = socket.htons(IpHdrLen + TcpHdrLen)
IpDestIP = struct.unpack('i',socket.inet_aton(DestIP))[0]
IpSourceIP = struct.unpack('i',socket.inet_aton(SetPacketAddress()[0]))[0]
TcpSport = socket.htons(random.randint(1024 , 65000))
TcpDport = socket.htons(DestPort)
TcpLenres = (TcpHdrLen / 4 << 4 | 0)
TcpSeq = socket.htonl(int(time.time()))
Buffer = struct.pack("LLBBHHHLLBBHHH",IpSourceIP,IpDestIP,0,socket.IPPROTO_TCP,socket.htons(TcpHdrLen)
,TcpSport,TcpDport,TcpSeq,0,TcpLenres,2,socket.htons(8192),0,0)
TcpChecksum = SetPacketCheckSum(Buffer)
Buffer = struct.pack("BBHHHBBHLL",IpVerlen,0,IpTotal_len,1,0x40,255,socket.IPPROTO_TCP,0,IpSourceIP,IpDestIP)
IpChecksum = SetPacketCheckSum(Buffer)
tcpcsp = struct.pack("L",TcpChecksum)
ipcsp = struct.pack("L",IpChecksum)
return struct.pack("BBHHHBBHLLHHLLBBHHH",IpVerlen,0,IpTotal_len,1,0x40,255,socket.IPPROTO_TCP
,(ord(ipcsp[1]) << 8) + ord(ipcsp[0]),IpSourceIP,IpDestIP
,TcpSport,TcpDport,TcpSeq,0,TcpLenres,2,socket.htons(8192)
,(ord(tcpcsp[1]) << 8) + ord(tcpcsp[0]),0)
def SynSendMain (DestIP = "127.0.0.1" , DestPort = 80) :
"""SynSendMain"""
return SendPacketData(SynSendInit(DestIP , DestPort) , DestIP , DestPort)
if __name__ == "__main__" :
SynSendMain()
plain copy
import sys
import time
import socket
import struct
import random
def SendPacketData (Buffer = None , DestIP = "127.0.0.1" , DestPort = 0) :
"""SendPacketData"""
if Buffer is None :
return False
try:
Socket = socket.socket(socket.AF_INET,socket.SOCK_RAW)
Socket.setsockopt(socket.IPPROTO_IP,socket.IP_HDRINCL,1)
Socket.setsockopt(socket.SOL_SOCKET,socket.SO_SNDTIMEO,2000)
except:
Socket.close()
return False
try:
Socket.sendto(Buffer,0,(DestIP , DestPort))
except:
Socket.close()
return True
def SetPacketAddress (Number = 1) :
"""SetPakcetAddress"""
return [".".join(["%d" % random.randint(1 , 0xFF) for i in range(0,4)]) for n in range(0 , Number)]
def SetPacketData (Length = 32) :
"""SetPacketData"""
return "".join(["%s" % chr(random.randint(0 , 255)) for n in range(Length)])
def SetPacketCheckSum (Buffer = None) :
"""SetPacketCheckSum"""
if Buffer == None :
return False
if len(Buffer) % 2 :
Buffer += '/0'
return ~sum([(ord(Buffer[n + 1]) << 8) + ord(Buffer
) for n in range(0 , len(Buffer) , 2)])
#or return ~sum([ord(Buffer
) + ord(Buffer[n + 1]) * 256 for n in range(0 , len(Buffer) , 2)])
def SynSendInit (DestIP = "127.0.0.1" , DestPort = 80) :
"""SynSendInit"""
IpHdrLen = 20
TcpHdrLen = 20
IpVerlen = (4 << 4 | IpHdrLen / 4)
IpTotal_len = socket.htons(IpHdrLen + TcpHdrLen)
IpDestIP = struct.unpack('i',socket.inet_aton(DestIP))[0]
IpSourceIP = struct.unpack('i',socket.inet_aton(SetPacketAddress()[0]))[0]
TcpSport = socket.htons(random.randint(1024 , 65000))
TcpDport = socket.htons(DestPort)
TcpLenres = (TcpHdrLen / 4 << 4 | 0)
TcpSeq = socket.htonl(int(time.time()))
Buffer = struct.pack("LLBBHHHLLBBHHH",IpSourceIP,IpDestIP,0,socket.IPPROTO_TCP,socket.htons(TcpHdrLen)
,TcpSport,TcpDport,TcpSeq,0,TcpLenres,2,socket.htons(8192),0,0)
TcpChecksum = SetPacketCheckSum(Buffer)
Buffer = struct.pack("BBHHHBBHLL",IpVerlen,0,IpTotal_len,1,0x40,255,socket.IPPROTO_TCP,0,IpSourceIP,IpDestIP)
IpChecksum = SetPacketCheckSum(Buffer)
tcpcsp = struct.pack("L",TcpChecksum)
ipcsp = struct.pack("L",IpChecksum)
return struct.pack("BBHHHBBHLLHHLLBBHHH",IpVerlen,0,IpTotal_len,1,0x40,255,socket.IPPROTO_TCP
,(ord(ipcsp[1]) << 8) + ord(ipcsp[0]),IpSourceIP,IpDestIP
,TcpSport,TcpDport,TcpSeq,0,TcpLenres,2,socket.htons(8192)
,(ord(tcpcsp[1]) << 8) + ord(tcpcsp[0]),0)
def SynSendMain (DestIP = "127.0.0.1" , DestPort = 80) :
"""SynSendMain"""
return SendPacketData(SynSendInit(DestIP , DestPort) , DestIP , DestPort)
if __name__ == "__main__" :
SynSendMain()
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