Question

I have a raw ethernet Frame that i want to send

How should i do that? i tried to send hex values of a frame but i still cant control packet header that contains src/dst address and ports

import socket

# the public network interface
HOST = socket.gethostbyname(socket.gethostname())
addr = ('46.165.204.237', 10000)

# create a raw socket and bind it to the public interface
s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_IP)
s.bind((HOST, 0))

netpacket = '\xDE\xB0\x7B\xE5\xA7\xCD\x4C\x17\xEB\x07\x0D\xBC\x08\x00\x45\x00\x00\x92\x68\x94\x40\x00\x78\x06\xDC\x94\x2E\xA5\xCC\xED\xC0\xA8\x01\x02\x27\x10\x07\xC8\x04\xD7\xEA\xEA\xC3\x2A\x4E\xA2\x50\x18\x01\x02\x39\xB0\x00\x00\x3C\x3F\x78\x6D\x6C\x20\x76\x65\x72\x73\x69\x6F\x6E\x3D\x22\x31\x2E\x30\x22\x3F\x3E\x3C\x50\x61\x63\x6B\x65\x74\x3E\x3C\x6F\x70\x65\x72\x61\x74\x69\x6F\x6E\x3E\x33\x3C\x2F\x6F\x70\x65\x72\x61\x74\x69\x6F\x6E\x3E\x3C\x64\x61\x74\x61\x3E\x33\x24\x30\x24\x30\x24\x30\x24\x30\x24\x30\x3C\x2F\x64\x61\x74\x61\x3E\x3C\x65\x78\x74\x64\x61\x74\x61\x3E\x3C\x2F\x65\x78\x74\x64\x61\x74\x61\x3E\x3C\x2F\x50\x61\x63\x6B\x65\x74\x3E'
#netpaket = netpacket.encode('UTF-8')
s.sendto(netpacket.encode('UTF-8'), addr)

Is there in Python a function like sendRaw() or sendRawFrame()?

I know scapy can handle this, but i need to do that many many times, and every time with various payload data. How scapy can be automated? I mean python script that launch scapy creates packet with some payload and send it.

scapy.py
packet1 = IP(dst='46.165.204.237')/TCP(sport=1992, dport=10000)/'<?xml version="1.0"?><Packet><operation>99</operation><data><![CDATA[8 fast]]></data><extdata><![CDATA[]]></extdata></Packet>.'
send(packet1)

The goal for it is to send packet from a port that already in use. If there a better solution for that problem?

Offtopic: maybe someone knows how to send packets through the Open socket id in windows (not only in python)?

Was it helpful?

Solution

You can provide Scapy with raw input by using the Raw layer.

netpacket = Raw('\xDE\xB0...')

To send packets at the ethernet layer - see the documentation for sendp.

sendp(netpacket, iface="eth1")
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