def in6_getLocalUniquePrefix():
"""
Returns a pseudo-randomly generated Local Unique prefix. Function
follows recommandation of Section 3.2.2 of RFC 4193 for prefix
generation.
"""
# Extracted from RFC 1305 (NTP) :
# NTP timestamps are represented as a 64-bit unsigned fixed-point number,
# in seconds relative to 0h on 1 January 1900. The integer part is in the
# first 32 bits and the fraction part in the last 32 bits.
# epoch = (1900, 1, 1, 0, 0, 0, 5, 1, 0)
# x = time.time()
# from time import gmtime, strftime, gmtime, mktime
# delta = mktime(gmtime(0)) - mktime(self.epoch)
# x = x-delta
tod = time.time() # time of day. Will bother with epoch later
i = int(tod)
j = int((tod - i)*(2**32))
tod = struct.pack("!II", i,j)
# TODO: Add some check regarding system address gathering
from scapy.arch import get_if_raw_hwaddr
rawmac = get_if_raw_hwaddr(conf.iface6)[1]
mac = ":".join(map(lambda x: "%.02x" % ord(x), list(rawmac)))
# construct modified EUI-64 ID
eui64 = inet_pton(socket.AF_INET6, '::' + in6_mactoifaceid(mac))[8:]
import sha
globalid = sha.new(tod+eui64).digest()[:5]
return inet_ntop(socket.AF_INET6, '\xfd' + globalid + '\x00'*10)
def in6_getLocalUniquePrefix():
"""
Returns a pseudo-randomly generated Local Unique prefix. Function
follows recommandation of Section 3.2.2 of RFC 4193 for prefix
generation.
"""
# Extracted from RFC 1305 (NTP) :
# NTP timestamps are represented as a 64-bit unsigned fixed-point number,
# in seconds relative to 0h on 1 January 1900. The integer part is in the
# first 32 bits and the fraction part in the last 32 bits.
# epoch = (1900, 1, 1, 0, 0, 0, 5, 1, 0)
# x = time.time()
# from time import gmtime, strftime, gmtime, mktime
# delta = mktime(gmtime(0)) - mktime(self.epoch)
# x = x-delta
tod = time.time() # time of day. Will bother with epoch later
i = int(tod)
j = int((tod - i) * (2**32))
tod = struct.pack("!II", i, j)
# TODO: Add some check regarding system address gathering
from scapy.arch import get_if_raw_hwaddr
rawmac = get_if_raw_hwaddr(conf.iface6)[1]
mac = ":".join(map(lambda x: "%.02x" % ord(x), list(rawmac)))
# construct modified EUI-64 ID
eui64 = inet_pton(socket.AF_INET6, '::' + in6_mactoifaceid(mac))[8:]
import sha
globalid = sha.new(tod + eui64).digest()[:5]
return inet_ntop(socket.AF_INET6, '\xfd' + globalid + '\x00' * 10)
def parse_args(self, iface=None, server_port=None, client_port=None,
client_ip=None, server_ip=None, server_mac=None,
client_mac=None, **kargs):
# NOTE: an external program should randomize MAC prior running this.
Automaton.parse_args(self, **kargs)
logger.debug('Automaton parsing args.')
# in case iface change when going back to init?:
self.iface = iface or conf.iface
# link layer:
# in case mac change when going back to init?:
# chaddr
if client_mac is None:
_, client_mac = get_if_raw_hwaddr(self.iface)
self.client_mac = str2mac(client_mac)
else:
self.client_mac = client_mac
# upd layer
self.server_port = server_port or SERVER_PORT
self.client_port = client_port or CLIENT_PORT
# dhcp logic
self.max_discover_retries = MAX_DISCOVER_RETRIES
self.max_num_offers = MAX_OFFERS_COLLECTED
self.previous_state = None
self.current_state = 'INIT'
self.initialize(iface=iface, client_mac=client_mac,
client_ip=client_ip, server_ip=server_ip,
server_mac=server_mac)
def dhcp_request(iface=None,**kargs):
if conf.checkIPaddr != 0:
warning("conf.checkIPaddr is not 0, I may not be able to match the answer")
if iface is None:
iface = conf.iface
fam,hw = get_if_raw_hwaddr(iface)
return srp1(Ether(dst="ff:ff:ff:ff:ff:ff")/IP(src="0.0.0.0",dst="255.255.255.255")/UDP(sport=68,dport=67)
/BOOTP(chaddr=hw)/DHCP(options=[("message-type","discover"),"end"]),iface=iface,**kargs)
def __init__(self, wlanmon, target_ssid):
try:
from scapy.arch import str2mac, get_if_raw_hwaddr
except ImportError:
raise ImportError("Could not import str2mac and get_if_raw")
self.tar_ssid = target_ssid
self.iface = wlanmon
self.mac = str2mac(get_if_raw_hwaddr(wlanmon)[1])
def dhcp_request(iface=None, **kargs):
if conf.checkIPaddr != 0:
warning("conf.checkIPaddr is not 0, I may not be able to match the answer")
if iface is None:
iface = conf.iface
fam, hw = get_if_raw_hwaddr(iface)
return srp1(Ether(dst="ff:ff:ff:ff:ff:ff") / IP(src="0.0.0.0", dst="255.255.255.255") / UDP(sport=68, dport=67)
/ BOOTP(chaddr=hw) / DHCP(options=[("message-type", "discover"), "end"]), iface=iface, **kargs)
def __init__(self, iface, ssid, wap_ip=None, channel=None):
try:
from scapy.arch import str2mac, get_if_raw_hwaddr
except ImportError:
raise ImportError("Could not import str2mac and get_if_raw")
self.ssids = [i for i in ssid]
self.iface = iface
self.ch = channel if channel is not None else 1
self.mac = str2mac(get_if_raw_hwaddr(iface)[1])
self.wpa = 0
self.802_1_x = 0
self.l_filter = None
self.hidden = False
self.ip = wap_ip if wap_ip is not None else '10.10.0.1'
self.bpffilter = "not ( wlan type mgt subtype beacon ) and ((ether dst host " + self.mac +") or (ether dst host ff:ff:ff:ff:ff:ff))"
def __attrs_post_init__(self):
"""Initializes attributes after attrs __init__.
These attributes do not change during the life of the object.
"""
logger.debug('Creating new DHCPCAP obj.')
if self.iface is None:
self.iface = conf.iface
if self.client_mac is None:
_, client_mac = get_if_raw_hwaddr(self.iface)
self.client_mac = str2mac(client_mac)
if self.prl is None:
self.prl = PRL
if self.xid is None:
self.xid = gen_xid()
logger.debug('Modifying Lease obj, setting iface.')
self.lease.interface = self.iface
def __attrs_post_init__(self):
"""Initializes attributes after attrs __init__.
These attributes do not change during the life of the object.
"""
logger.debug('Creating new DHCPCAP obj.')
if self.iface is None:
self.iface = conf.iface
if self.client_mac is None:
_, client_mac = get_if_raw_hwaddr(self.iface)
self.client_mac = str2mac(client_mac)
if self.prl is None:
self.prl = PRL
if self.xid is None:
self.xid = gen_xid()
logger.debug('Modifying Lease obj, setting iface.')
self.lease.interface = self.iface
def reset(self, iface=None, client_mac=None, xid=None, scriptfile=None):
"""Reset object attributes when state is INIT."""
logger.debug('Reseting attributes.')
if iface is None:
iface = conf.iface
if client_mac is None:
# scapy for python 3 returns byte, not tuple
tempmac = get_if_raw_hwaddr(iface)
if isinstance(tempmac, tuple) and len(tempmac) == 2:
mac = tempmac[1]
else:
mac = tempmac
client_mac = str2mac(mac)
self.client = DHCPCAP(iface=iface, client_mac=client_mac, xid=xid)
if scriptfile is not None:
self.script = ClientScript(scriptfile)
else:
self.script = None
self.time_sent_request = None
self.discover_attempts = 0
self.request_attempts = 0
self.current_state = STATE_PREINIT
self.offers = list()
def use_l2_packet(self, interface):
addrfamily, mac = get_if_raw_hwaddr(interface)
return addrfamily in [ARPHDR_ETHER, ARPHDR_LOOPBACK]
def if_hwaddr(iff):
return str2mac(get_if_raw_hwaddr(iff)[1])
def get_my_addr(self, iface):
family, hwaddr = get_if_raw_hwaddr(iface)
hwaddr = binascii.hexlify(hwaddr)
hwaddr = ':'.join(hwaddr[i:i + 2] for i in range(0, 12, 2))
return hwaddr
def if_hwaddr(iff):
return str2mac(get_if_raw_hwaddr(iff)[1])
