I try to implement 3-way-hadnshake with a raw socket in Python and using Scapy.
The code is:
s=socket.socket(socket.AF_PACKET, socket.SOCK_RAW, socket.IPPROTO_TCP)
ss=StreamSocket(s)
iph=IPheader()
syn = TCP(sport=TCP_SOURCE_PORT,dport=TCP_DESTINATION_PORT, flags="S")
synack = ss.sr1(iph/syn)
myack = iph/TCP(dport=synack[TCP].sport, sport=synack[TCP].dport, seq=synack[TCP].ack, ack=synack[TCP].seq+1, flags="A")
ss.send(myack)
IPheader() method return a scapy IP header.
When running the script i get this error:
ERROR: --- Error in child 3057
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/scapy/sendrecv.py", line 89, in sndrcv
pks.send(p)
File "/usr/lib/python2.7/dist-packages/scapy/supersocket.py", line 34, in send
return self.outs.send(sx)
error: [Errno 6] No such device or address