/usr/share/pyshared/dpkt/stun.py is in python-dpkt 1.6+svn54-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | # $Id: stun.py 47 2008-05-27 02:10:00Z jon.oberheide $
"""Simple Traversal of UDP through NAT."""
import struct
import dpkt
# STUN - RFC 3489
# http://tools.ietf.org/html/rfc3489
# Each packet has a 20 byte header followed by 0 or more attribute TLVs.
# Message Types
BINDING_REQUEST = 0x0001
BINDING_RESPONSE = 0x0101
BINDING_ERROR_RESPONSE = 0x0111
SHARED_SECRET_REQUEST = 0x0002
SHARED_SECRET_RESPONSE = 0x0102
SHARED_SECRET_ERROR_RESPONSE = 0x0112
# Message Attributes
MAPPED_ADDRESS = 0x0001
RESPONSE_ADDRESS = 0x0002
CHANGE_REQUEST = 0x0003
SOURCE_ADDRESS = 0x0004
CHANGED_ADDRESS = 0x0005
USERNAME = 0x0006
PASSWORD = 0x0007
MESSAGE_INTEGRITY = 0x0008
ERROR_CODE = 0x0009
UNKNOWN_ATTRIBUTES = 0x000a
REFLECTED_FROM = 0x000b
class STUN(dpkt.Packet):
__hdr__ = (
('type', 'H', 0),
('len', 'H', 0),
('xid', '16s', 0)
)
def tlv(buf):
n = 4
t, l = struct.unpack('>HH', buf[:n])
v = buf[n:n+l]
buf = buf[n+l:]
return (t,l,v, buf)
|