def tun_callback(rawpkt):
"""
Callback when pkts arrive from the TUN
Figure out which client should receive the packet, and forward
it along along that client connection.
"""
msg = VpnMsgWrapper.pkt_msg(rawpkt)
pkt = Packet(rawpkt, read_only=True)
des_ip = pkt.get_dst()
# Lookup the client to which this pkt should be sent.
#
try:
point = VpnServerState.CLIENTS[des_ip]
point.transport.write(msg.pack())
except KeyError:
logging.getLogger('cb.vpn_dp').debug('no client, dropping')
print 'no client, dropping'
def ip_attrib_test():
p = Packet(tlspkt)
assert (p.get_src() == '\x48\x0E\xCC\x67')
assert (p.get_dst() == '\x80\x59\x50\xF8')
assert (p.get_ip_cksum() == 0xc3a7)
assert (p.protocol == 6)