Raw sockets and sendto in python

Question

I am working on integrating scapy with twisted, but I ran into this very weird bug on OSX that I can\'t seem to figure out.

Basically I am unable to send a valid TCP pac

Answer 1

Python 2.7.1+ (r271:86832, Apr 11 2011, 18:13:53) 
[GCC 4.5.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import socket
>>> from scapy.all import IP, TCP
WARNING: No route found for IPv6 destination :: (no default route?)
>>> pkt = IP(src='0.0.0.0', dst='127.0.0.1')/TCP()
>>> spkt1 = str(pkt)
>>> 
>>> outs = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_RAW)
>>> outs.setsockopt(socket.SOL_IP, socket.IP_HDRINCL, 1)
>>> outs.sendto(spkt1, ('127.0.0.1', 0))
40

I don't seem to have any error writing that specific set of packets - I'm using x86_64 with a 2.6.38-* Gnu/Linux kernel.

Perhaps your issue is related to some Mac OS X brain damage with raw sockets?