code
string | signature
string | docstring
string | loss_without_docstring
float64 | loss_with_docstring
float64 | factor
float64 |
|---|---|---|---|---|---|
_resv = self._read_fileng(2)
_keys = self._read_unpack(1)
_alen = self._read_unpack(1)
_seqn = self._read_unpack(4)
auth = dict(
key_id=_keys,
len=_alen,
seq=_seqn,
)
return auth | def _read_encrypt_auth(self) | Read Authentication field when Cryptographic Authentication is employed.
Structure of Cryptographic Authentication [RFC 2328]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | Key ID | Auth Data Len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Cryptographic sequence number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 - Reserved (must be zero)
2 16 ospf.auth.key_id Key ID
3 24 ospf.auth.len Auth Data Length
4 32 ospf.auth.seq Cryptographic Sequence Number | 5.794355 | 4.385906 | 1.321131 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, numbers.Integral):
name = type(var).__name__
raise ComplexError(
f'Function {func} expected integral number, {name} got instead.') | def int_check(*args, func=None) | Check if arguments are integrals. | 5.261915 | 4.563182 | 1.153124 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, numbers.Real):
name = type(var).__name__
raise ComplexError(
f'Function {func} expected real number, {name} got instead.') | def real_check(*args, func=None) | Check if arguments are real numbers. | 5.248132 | 4.301405 | 1.220097 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, numbers.Complex):
name = type(var).__name__
raise ComplexError(
f'Function {func} expected complex number, {name} got instead.') | def complex_check(*args, func=None) | Check if arguments are complex numbers. | 4.893411 | 4.299806 | 1.138054 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, numbers.Number):
name = type(var).__name__
raise DigitError(
f'Function {func} expected number, {name} got instead.') | def number_check(*args, func=None) | Check if arguments are numbers. | 5.174087 | 4.583232 | 1.128917 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, (bytes, collections.abc.ByteString)):
name = type(var).__name__
raise BytesError(
f'Function {func} expected bytes, {name} got instead.') | def bytes_check(*args, func=None) | Check if arguments are bytes type. | 5.229712 | 4.612471 | 1.13382 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, (bytearray, collections.abc.ByteString, collections.abc.MutableSequence)):
name = type(var).__name__
raise BytearrayError(
f'Function {func} expected bytearray, {name} got instead.') | def bytearray_check(*args, func=None) | Check if arguments are bytearray type. | 4.483716 | 4.060209 | 1.104307 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, (str, collections.UserString, collections.abc.Sequence)):
name = type(var).__name__
raise StringError(
f'Function {func} expected str, {name} got instead.') | def str_check(*args, func=None) | Check if arguments are str type. | 5.553167 | 5.070527 | 1.095185 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, bool):
name = type(var).__name__
raise BoolError(
f'Function {func} expected bool, {name} got instead.') | def bool_check(*args, func=None) | Check if arguments are bytes type. | 5.497958 | 4.996364 | 1.100392 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, (list, collections.UserList, collections.abc.MutableSequence)):
name = type(var).__name__
raise ListError(
f'Function {func} expected list, {name} got instead.') | def list_check(*args, func=None) | Check if arguments are list type. | 5.420522 | 4.837774 | 1.120458 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, (dict, collections.UserDict, collections.abc.MutableMapping)):
name = type(var).__name__
raise DictError(
f'Function {func} expected dict, {name} got instead.') | def dict_check(*args, func=None) | Check if arguments are dict type. | 4.864711 | 4.566705 | 1.065256 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, (tuple, collections.abc.Sequence)):
name = type(var).__name__
raise TupleError(
f'Function {func} expected tuple, {name} got instead.') | def tuple_check(*args, func=None) | Check if arguments are tuple type. | 4.763874 | 4.275981 | 1.114101 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, io.IOBase):
name = type(var).__name__
raise IOObjError(
f'Function {func} expected file-like object, {name} got instead.') | def io_check(*args, func=None) | Check if arguments are file-like object. | 5.370134 | 4.234899 | 1.268067 |
from pcapkit.corekit.infoclass import Info
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, Info):
name = type(var).__name__
raise InfoError(
f'Function {func} expected Info instance, {name} got instead.') | def info_check(*args, func=None) | Check if arguments are Info instance. | 5.200924 | 4.50248 | 1.155124 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, ipaddress._IPAddressBase):
name = type(var).__name__
raise IPError(
f'Function {func} expected IP address, {name} got instead.') | def ip_check(*args, func=None) | Check if arguments are IP addresses. | 5.708911 | 5.039999 | 1.132721 |
func = func or inspect.stack()[2][3]
for var in args:
if not isinstance(var, (enum.EnumMeta, aenum.EnumMeta)):
name = type(var).__name__
raise EnumError(
f'Function {func} expected enumeration, {name} got instead.') | def enum_check(*args, func=None) | Check if arguments are of protocol type. | 5.471378 | 4.998597 | 1.094583 |
func = func or inspect.stack()[2][3]
if 'IP' in protocol:
_ip_frag_check(*args, func=func)
elif 'TCP' in protocol:
_tcp_frag_check(*args, func=func)
else:
raise FragmentError(f'Unknown fragmented protocol {protocol}.') | def frag_check(*args, protocol, func=None) | Check if arguments are valid fragments. | 3.343638 | 2.985109 | 1.120106 |
func = func or inspect.stack()[2][3]
for var in args:
dict_check(var, func=func)
bufid = var.get('bufid')
str_check(bufid[3], func=func)
bool_check(var.get('mf'), func=func)
ip_check(bufid[0], bufid[1], func=func)
bytearray_check(var.get('header'), var.get('payload'), func=func)
int_check(bufid[2], var.get('num'), var.get('fo'),
var.get('ihl'), var.get('tl'), func=func) | def _ip_frag_check(*args, func=None) | Check if arguments are valid IP fragments. | 4.395572 | 4.1907 | 1.048887 |
func = func or inspect.stack()[2][3]
for var in args:
dict_check(var, func=func)
dict_check(var.get('frame'), func=func)
enum_check(var.get('protocol'), func=func)
real_check(var.get('timestamp'), func=func)
ip_check(var.get('src'), var.get('dst'), func=func)
bool_check(var.get('syn'), var.get('fin'), func=func)
int_check(var.get('srcport'), var.get('dstport'), var.get('index'), func=func) | def pkt_check(*args, func=None) | Check if arguments are valid packets. | 2.973686 | 2.794975 | 1.06394 |
if self._newflg:
self._newflg = False
temp_dtgram = copy.deepcopy(self._dtgram)
for (bufid, buffer) in self._buffer.items():
temp_dtgram += self.submit(buffer, bufid=bufid)
return tuple(temp_dtgram)
return tuple(self._dtgram) | def fetch(self) | Fetch datagram. | 6.249832 | 5.445486 | 1.147709 |
int_check(pkt_num)
for counter, datagram in enumerate(self.datagram):
if pkt_num in datagram.index:
return counter
return None | def index(self, pkt_num) | Return datagram index. | 7.377694 | 5.06461 | 1.456715 |
for packet in packets:
frag_check(packet, protocol=self.protocol)
info = Info(packet)
self.reassembly(info)
self._newflg = True | def run(self, packets) | Run automatically.
Positional arguments:
* packets -- list<dict>, list of packet dicts to be reassembled | 14.253448 | 18.839838 | 0.756559 |
if length is None:
length = len(self)
_next = self._read_protos(1)
_hlen = self._read_unpack(1)
_type = self._read_unpack(1)
_temp = self._read_fileng(1)
_csum = self._read_fileng(2)
# _data = self._read_fileng((_hlen+1)*8)
mh = dict(
next=_next,
length=(_hlen + 1) * 8,
type=_MOBILITY_TYPE.get(_type, 'Unassigned'),
chksum=_csum,
)
length -= mh['length']
mh['packet'] = self._read_packet(header=mh['length'], payload=length)
if extension:
self._protos = None
return mh
return self._decode_next_layer(mh, _next, length) | def read_mh(self, length, extension) | Read Mobility Header.
Structure of MH header [RFC 6275]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Payload Proto | Header Len | MH Type | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Checksum | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| |
. .
. Message Data .
. .
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 mh.next Next Header
1 8 mh.length Header Length
2 16 mh.type Mobility Header Type
3 24 - Reserved
4 32 mh.chksum Checksum
6 48 mh.data Message Data | 5.072417 | 4.21231 | 1.204189 |
if isinstance(key, int):
return DI(key)
if key not in DI._member_map_:
extend_enum(DI, key, default)
return DI[key] | def get(key, default=-1) | Backport support for original codes. | 7.669672 | 6.563574 | 1.168521 |
if isinstance(key, int):
return Certificate(key)
if key not in Certificate._member_map_:
extend_enum(Certificate, key, default)
return Certificate[key] | def get(key, default=-1) | Backport support for original codes. | 7.167058 | 6.423409 | 1.115772 |
if length is None:
length = len(self)
_srcp = self._read_unpack(2)
_dstp = self._read_unpack(2)
_tlen = self._read_unpack(2)
_csum = self._read_fileng(2)
udp = dict(
srcport=_srcp,
dstport=_dstp,
len=_tlen,
checksum=_csum,
)
length = udp['len'] - 8
udp['packet'] = self._read_packet(header=8, payload=length)
return self._decode_next_layer(udp, None, length) | def read_udp(self, length) | Read User Datagram Protocol (UDP).
Structure of UDP header [RFC 768]:
0 7 8 15 16 23 24 31
+--------+--------+--------+--------+
| Source | Destination |
| Port | Port |
+--------+--------+--------+--------+
| | |
| Length | Checksum |
+--------+--------+--------+--------+
|
| data octets ...
+---------------- ...
Octets Bits Name Description
0 0 udp.srcport Source Port
2 16 udp.dstport Destination Port
4 32 udp.len Length (header includes)
6 48 udp.checksum Checksum | 3.936729 | 3.626405 | 1.085573 |
if length is None:
length = len(self)
_csum = self._read_fileng(2)
_tlen = self._read_unpack(2)
_ctrl = self._read_unpack(1)
_type = self._read_unpack(1)
_dsta = self._read_ipx_address()
_srca = self._read_ipx_address()
ipx = dict(
chksum=_csum,
len=_tlen,
count=_ctrl,
type=TYPE.get(_type),
dst=_dsta,
src=_srca,
)
proto = ipx['type']
length = ipx['len'] - 30
ipx['packet'] = self._read_packet(header=30, payload=length)
return self._decode_next_layer(ipx, proto, length) | def read_ipx(self, length) | Read Internetwork Packet Exchange.
Structure of IPX header [RFC 1132]:
Octets Bits Name Description
0 0 ipx.cksum Checksum
2 16 ipx.len Packet Length (header includes)
4 32 ipx.count Transport Control (hop count)
5 40 ipx.type Packet Type
6 48 ipx.dst Destination Address
18 144 ipx.src Source Address | 3.904575 | 3.366942 | 1.15968 |
# Address Number
_byte = self._read_fileng(4)
_ntwk = ':'.join(textwrap.wrap(_byte.hex(), 2))
# Node Number (MAC)
_byte = self._read_fileng(6)
_node = ':'.join(textwrap.wrap(_byte.hex(), 2))
_maca = '-'.join(textwrap.wrap(_byte.hex(), 2))
# Socket Number
_sock = self._read_fileng(2)
# Whole Address
_list = [_ntwk, _node, _sock.hex()]
_addr = ':'.join(_list)
addr = dict(
network=_ntwk,
node=_maca,
socket=SOCK.get(int(_sock.hex(), base=16)) or _sock,
addr=_addr,
)
return addr | def _read_ipx_address(self) | Read IPX address field.
Structure of IPX address:
Octets Bits Name Description
0 0 ipx.addr.network Network Number
4 32 ipx.addr.node Node Number
10 80 ipx.addr.socket Socket Number | 4.247075 | 4.029067 | 1.054109 |
if isinstance(key, int):
return Group(key)
if key not in Group._member_map_:
extend_enum(Group, key, default)
return Group[key] | def get(key, default=-1) | Backport support for original codes. | 6.341535 | 5.210846 | 1.216988 |
if length is None:
length = len(self)
_hwty = self._read_unpack(2)
_ptty = self._read_unpack(2)
_hlen = self._read_unpack(1)
_plen = self._read_unpack(1)
_oper = self._read_unpack(2)
_shwa = self._read_addr_resolve(_hlen, _hwty)
_spta = self._read_proto_resolve(_plen, _ptty)
_thwa = self._read_addr_resolve(_hlen, _hwty)
_tpta = self._read_proto_resolve(_plen, _ptty)
if _oper in (5, 6, 7):
self._acnm = 'DRARP'
self._name = 'Dynamic Reverse Address Resolution Protocol'
elif _oper in (8, 9):
self._acnm = 'InARP'
self._name = 'Inverse Address Resolution Protocol'
elif _oper in (3, 4):
self._acnm = 'RARP'
self._name = 'Reverse Address Resolution Protocol'
else:
self._acnm = 'ARP'
self._name = 'Address Resolution Protocol'
_htype = HRD.get(_hwty)
if re.match(r'.*Ethernet.*', _htype, re.IGNORECASE):
_ptype = ETHERTYPE.get(_ptty)
else:
_ptype = f'Unknown [{_ptty}]'
arp = dict(
htype=_htype,
ptype=_ptype,
hlen=_hlen,
plen=_plen,
oper=OPER.get(_oper),
sha=_shwa,
spa=_spta,
tha=_thwa,
tpa=_tpta,
len=8 + _hlen * 2 + _plen * 2,
)
length -= arp['len']
arp['packet'] = self._read_packet(header=arp['len'], payload=length)
return self._decode_next_layer(arp, None, length) | def read_arp(self, length) | Read Address Resolution Protocol.
Structure of ARP header [RFC 826]:
Octets Bits Name Description
0 0 arp.htype Hardware Type
2 16 arp.ptype Protocol Type
4 32 arp.hlen Hardware Address Length
5 40 arp.plen Protocol Address Length
6 48 arp.oper Operation
8 64 arp.sha Sender Hardware Address
14 112 arp.spa Sender Protocol Address
18 144 arp.tha Target Hardware Address
24 192 arp.tpa Target Protocol Address | 3.004964 | 2.716878 | 1.106036 |
if htype == 1: # Ethernet
_byte = self._read_fileng(6)
_addr = '-'.join(textwrap.wrap(_byte.hex(), 2))
else:
_addr = self._read_fileng(length)
return _addr | def _read_addr_resolve(self, length, htype) | Resolve MAC address according to protocol.
Positional arguments:
* length -- int, hardware address length
* htype -- int, hardware type
Returns:
* str -- MAC address | 4.696834 | 4.836373 | 0.971148 |
# if ptype == '0800': # IPv4
# _byte = self._read_fileng(4)
# _addr = '.'.join([str(_) for _ in _byte])
# elif ptype == '86dd': # IPv6
# adlt = [] # list of IPv6 hexadecimal address
# ctr_ = collections.defaultdict(int)
# # counter for consecutive groups of zero value
# ptr_ = 0 # start pointer of consecutive groups of zero value
# last = False # if last hextet/group is zero value
# omit = False # omitted flag, since IPv6 address can omit to `::` only once
# for index in range(8):
# hex_ = self._read_fileng(2).hex().lstrip('0')
# if hex_: # if hextet is not '', directly append
# adlt.append(hex_)
# last = False
# else: # if hextet is '', append '0'
# adlt.append('0')
# if last: # if last hextet is '', ascend counter
# ctr_[ptr_] += 1
# else: # if last hextet is not '', record pointer
# ptr_ = index
# last = True
# ctr_[ptr_] = 1
# ptr_ = max(ctr_, key=ctr_.get) if ctr_ else 0 # fetch start pointer with longest zero values
# end_ = ptr_ + ctr_[ptr_] # calculate end pointer
# if ctr_[ptr_] > 1: # only omit if zero values are in a consecutive group
# del adlt[ptr_:end_] # remove zero values
# if ptr_ == 0 and end_ == 8: # insert `::` if IPv6 unspecified address (::)
# adlt.insert(ptr_, '::')
# elif ptr_ == 0 or end_ == 8: # insert `:` if zero values are from start or at end
# adlt.insert(ptr_, ':')
# else: # insert '' otherwise
# adlt.insert(ptr_, '')
# _addr = ':'.join(adlt)
# else:
# _addr = self._read_fileng(length)
# return _addr
if ptype == '0800': # IPv4
return ipaddress.ip_address(self._read_fileng(4))
elif ptype == '86dd': # IPv6
return ipaddress.ip_address(self._read_fileng(16))
else:
return self._read_fileng(length) | def _read_proto_resolve(self, length, ptype) | Resolve IP address according to protocol.
Positional arguments:
* length -- int, protocol address length
* ptype -- int, protocol type
Returns:
* str -- IP address | 3.743573 | 3.681486 | 1.016865 |
if isinstance(key, int):
return Setting(key)
if key not in Setting._member_map_:
extend_enum(Setting, key, default)
return Setting[key] | def get(key, default=-1) | Backport support for original codes. | 6.737927 | 5.813331 | 1.159048 |
if isinstance(key, int):
return Transport(key)
if key not in Transport._member_map_:
extend_enum(Transport, key, default)
return Transport[key] | def get(key, default=-1) | Backport support for original codes. | 7.01059 | 6.056963 | 1.157443 |
if isinstance(key, int):
return TOS_DEL(key)
if key not in TOS_DEL._member_map_:
extend_enum(TOS_DEL, key, default)
return TOS_DEL[key] | def get(key, default=-1) | Backport support for original codes. | 5.956742 | 5.557714 | 1.071797 |
if isinstance(key, int):
return EtherType(key)
if key not in EtherType._member_map_:
extend_enum(EtherType, key, default)
return EtherType[key] | def get(key, default=-1) | Backport support for original codes. | 4.918379 | 4.51947 | 1.088265 |
if isinstance(key, int):
return TOS_ECN(key)
if key not in TOS_ECN._member_map_:
extend_enum(TOS_ECN, key, default)
return TOS_ECN[key] | def get(key, default=-1) | Backport support for original codes. | 4.681132 | 4.398568 | 1.06424 |
if isinstance(key, int):
return Frame(key)
if key not in Frame._member_map_:
extend_enum(Frame, key, default)
return Frame[key] | def get(key, default=-1) | Backport support for original codes. | 6.792215 | 5.95616 | 1.140368 |
if not (isinstance(value, int) and 0x00 <= value <= 0xFF):
raise ValueError('%r is not a valid %s' % (value, cls.__name__))
if 0x0D <= value <= 0xEF:
extend_enum(cls, 'Unassigned [0x%s]' % hex(value)[2:].upper().zfill(2), value)
return cls(value)
if 0xF0 <= value <= 0xFF:
# [RFC 7540]
extend_enum(cls, 'Reserved for Experimental Use [0x%s]' % hex(value)[2:].upper().zfill(2), value)
return cls(value)
super()._missing_(value) | def _missing_(cls, value) | Lookup function used when value is not found. | 3.074729 | 3.163337 | 0.971989 |
if 'IPv4' in frame:
ipv4 = frame['IPv4'].info
if ipv4.flags.df: # dismiss not fragmented frame
return False, None
data = dict(
bufid=(
ipv4.src, # source IP address
ipv4.dst, # destination IP address
ipv4.id, # identification
ipv4.proto.name, # payload protocol type
),
num=frame.info.number, # original packet range number
fo=ipv4.frag_offset, # fragment offset
ihl=ipv4.hdr_len, # internet header length
mf=ipv4.flags.mf, # more fragment flag
tl=ipv4.len, # total length, header includes
header=bytearray(ipv4.packet.header), # raw bytearray type header
payload=bytearray(ipv4.packet.payload or b''), # raw bytearray type payload
)
return True, data
return False, None | def ipv4_reassembly(frame) | Make data for IPv4 reassembly. | 5.225379 | 5.103569 | 1.023868 |
if 'IPv6' in frame:
ipv6 = frame['IPv6'].info
if 'frag' not in ipv6: # dismiss not fragmented frame
return False, None
data = dict(
bufid=(
ipv6.src, # source IP address
ipv6.dst, # destination IP address
ipv6.label, # label
ipv6.ipv6_frag.next.name, # next header field in IPv6 Fragment Header
),
num=frame.info.number, # original packet range number
fo=ipv6.ipv6_frag.offset, # fragment offset
ihl=ipv6.hdr_len, # header length, only headers before IPv6-Frag
mf=ipv6.ipv6_frag.mf, # more fragment flag
tl=ipv6.hdr_len + ipv6.raw_len, # total length, header includes
header=bytearray(ipv6.fragment.header), # raw bytearray type header before IPv6-Frag
payload=bytearray(ipv6.fragment.payload or b''), # raw bytearray type payload after IPv6-Frag
)
return True, data
return False, None | def ipv6_reassembly(frame) | Make data for IPv6 reassembly. | 5.54193 | 5.415977 | 1.023256 |
if 'TCP' in frame:
ip = (frame['IPv4'] if 'IPv4' in frame else frame['IPv6']).info
tcp = frame['TCP'].info
data = dict(
bufid=(
ip.src, # source IP address
ip.dst, # destination IP address
tcp.srcport, # source port
tcp.dstport, # destination port
),
num=frame.info.number, # original packet range number
ack=tcp.ack, # acknowledgement
dsn=tcp.seq, # data sequence number
syn=tcp.flags.syn, # synchronise flag
fin=tcp.flags.fin, # finish flag
rst=tcp.flags.rst, # reset connection flag
payload=bytearray(tcp.packet.payload or b''), # raw bytearray type payload
)
raw_len = len(data['payload']) # payload length, header excludes
data['first'] = tcp.seq # this sequence number
data['last'] = tcp.seq + raw_len # next (wanted) sequence number
data['len'] = raw_len # payload length, header excludes
return True, data
return False, None | def tcp_reassembly(frame) | Make data for TCP reassembly. | 4.320276 | 4.20076 | 1.028451 |
if 'TCP' in frame:
ip = (frame['IPv4'] if 'IPv4' in frame else frame['IPv6']).info
tcp = frame['TCP'].info
data = dict(
protocol=data_link, # data link type from global header
index=frame.info.number, # frame number
frame=frame.info, # extracted frame info
syn=tcp.flags.syn, # TCP synchronise (SYN) flag
fin=tcp.flags.fin, # TCP finish (FIN) flag
src=ip.src, # source IP
dst=ip.dst, # destination IP
srcport=tcp.srcport, # TCP source port
dstport=tcp.dstport, # TCP destination port
timestamp=frame.info.time_epoch, # frame timestamp
)
return True, data
return False, None | def tcp_traceflow(frame, *, data_link) | Trace packet flow for TCP. | 3.558325 | 3.471468 | 1.02502 |
if isinstance(key, int):
return TOS_REL(key)
if key not in TOS_REL._member_map_:
extend_enum(TOS_REL, key, default)
return TOS_REL[key] | def get(key, default=-1) | Backport support for original codes. | 5.406889 | 5.047052 | 1.071296 |
BUFID = info.bufid # Buffer Identifier
FO = info.fo # Fragment Offset
IHL = info.ihl # Internet Header Length
MF = info.mf # More Fragments flag
TL = info.tl # Total Length
# when non-fragmented (possibly discarded) packet received
if not FO and not MF:
if BUFID in self._buffer:
self._dtgram += self.submit(self._buffer[BUFID])
del self._buffer[BUFID]
return
# initialise buffer with BUFID
if BUFID not in self._buffer:
self._buffer[BUFID] = dict(
TDL=0, # Total Data Length
RCVBT=bytearray(8191), # Fragment Received Bit Table
index=list(), # index record
header=bytearray(), # header buffer
datagram=bytearray(65535), # data buffer
)
# append packet index
self._buffer[BUFID]['index'].append(info.num)
# put data into data buffer
start = FO
stop = TL - IHL + FO
self._buffer[BUFID]['datagram'][start:stop] = info.payload
# set RCVBT bits (in 8 octets)
start = FO // 8
stop = FO // 8 + (TL - IHL + 7) // 8
self._buffer[BUFID]['RCVBT'][start:stop] = b'\x01' * (stop - start + 1)
# get total data length (header excludes)
if not MF:
TDL = TL - IHL + FO
# put header into header buffer
if not FO:
self._buffer[BUFID]['header'] = info.header
# when datagram is reassembled in whole
start = 0
stop = (TDL + 7) // 8
if TDL and all(self._buffer[BUFID]['RCVBT'][start:stop]):
self._dtgram += self.submit(self._buffer[BUFID], checked=True)
del self._buffer[BUFID] | def reassembly(self, info) | Reassembly procedure.
Positional arguments:
* info -- Info, info dict of packets to be reassembled | 4.599947 | 4.651062 | 0.98901 |
TDL = buf['TDL']
RCVBT = buf['RCVBT']
index = buf['index']
header = buf['header']
datagram = buf['datagram']
start = 0
stop = (TDL + 7) // 8
flag = checked or (TDL and all(RCVBT[start:stop]))
# if datagram is not implemented
if not flag and self._strflg:
data = list()
byte = bytearray()
# extract received payload
for (bctr, bit) in enumerate(RCVBT):
if bit: # received bit
this = bctr * 8
that = this + 8
byte += datagram[this:that]
else: # missing bit
if byte: # strip empty payload
data.append(bytes(byte))
byte = bytearray()
# strip empty packets
if data or header:
packet = Info(
NotImplemented=True,
index=tuple(index),
header=header or None,
payload=tuple(data) or None,
)
# if datagram is reassembled in whole
else:
payload = datagram[:TDL]
packet = Info(
NotImplemented=False,
index=tuple(index),
packet=(bytes(header) + bytes(payload)) or None,
)
return [packet] | def submit(self, buf, *, checked=False) | Submit reassembled payload.
Positional arguments:
* buf -- dict, buffer dict of reassembled packets
Keyword arguments:
* bufid -- tuple, buffer identifier
Returns:
* list -- reassembled packets | 6.162082 | 6.055474 | 1.017605 |
if length is None:
length = len(self)
_htet = self._read_ip_hextet()
_plen = self._read_unpack(2)
_next = self._read_protos(1)
_hlmt = self._read_unpack(1)
_srca = self._read_ip_addr()
_dsta = self._read_ip_addr()
ipv6 = dict(
version=_htet[0],
tclass=_htet[1],
label=_htet[2],
payload=_plen,
next=_next,
limit=_hlmt,
src=_srca,
dst=_dsta,
)
hdr_len = 40
raw_len = ipv6['payload']
ipv6['packet'] = self._read_packet(header=hdr_len, payload=raw_len)
return self._decode_next_layer(ipv6, _next, raw_len) | def read_ipv6(self, length) | Read Internet Protocol version 6 (IPv6).
Structure of IPv6 header [RFC 2460]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Version| Traffic Class | Flow Label |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Payload Length | Next Header | Hop Limit |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Source Address +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Destination Address +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 ip.version Version (6)
0 4 ip.class Traffic Class
1 12 ip.label Flow Label
4 32 ip.payload Payload Length (header excludes)
6 48 ip.next Next Header
7 56 ip.limit Hop Limit
8 64 ip.src Source Address
24 192 ip.dst Destination Address | 3.904551 | 3.310102 | 1.179586 |
_htet = self._read_fileng(4).hex()
_vers = _htet[0] # version number (6)
_tcls = int(_htet[0:2], base=16) # traffic class
_flow = int(_htet[2:], base=16) # flow label
return (_vers, _tcls, _flow) | def _read_ip_hextet(self) | Read first four hextets of IPv6. | 5.765831 | 4.686666 | 1.230263 |
hdr_len = 40 # header length
raw_len = ipv6['payload'] # payload length
_protos = list() # ProtoChain buffer
# traverse if next header is an extensive header
while proto in EXT_HDR:
# keep original data after fragment header
if proto.value == 44:
ipv6['fragment'] = self._read_packet(header=hdr_len, payload=raw_len)
# # directly break when No Next Header occurs
# if proto.name == 'IPv6-NoNxt':
# proto = None
# break
# make protocol name
next_ = self._import_next_layer(proto, version=6, extension=True)
info = next_.info
name = next_.alias.lstrip('IPv6-').lower()
ipv6[name] = info
# record protocol name
# self._protos = ProtoChain(name, chain, alias)
_protos.append(next_)
proto = info.next # pylint: disable=E1101
# update header & payload length
hdr_len += info.length # pylint: disable=E1101
raw_len -= info.length # pylint: disable=E1101
# record real header & payload length (headers exclude)
ipv6['hdr_len'] = hdr_len
ipv6['raw_len'] = raw_len
# update next header
ipv6['protocol'] = proto
return super()._decode_next_layer(ipv6, proto, raw_len, ipv6_exthdr=_protos) | def _decode_next_layer(self, ipv6, proto=None, length=None) | Decode next layer extractor.
Positional arguments:
* ipv6 -- dict, info buffer
* proto -- str, next layer protocol name
* length -- int, valid (not padding) length
Returns:
* dict -- current protocol with next layer extracted | 6.500879 | 6.615775 | 0.982633 |
_byte = self._read_unpack(size)
_prot = TP_PROTO.get(_byte)
return _prot | def _read_protos(self, size) | Read next layer protocol type.
Positional arguments:
* size -- int, buffer size
Returns:
* str -- next layer's protocol name | 12.660256 | 12.72099 | 0.995226 |
if self._onerror:
next_ = beholder(self._import_next_layer)(self, proto, length, version=version)
else:
next_ = self._import_next_layer(proto, length, version=version)
info, chain = next_.info, next_.protochain
# make next layer protocol name
layer = next_.alias.lower()
# proto = next_.__class__.__name__
# write info and protocol chain into dict
dict_[layer] = info
self._next = next_
if ipv6_exthdr is not None:
for proto in reversed(ipv6_exthdr):
chain = ProtoChain(proto.__class__, proto.alias, basis=chain)
self._protos = ProtoChain(self.__class__, self.alias, basis=chain)
return dict_ | def _decode_next_layer(self, dict_, proto=None, length=None, *, version=4, ipv6_exthdr=None) | Decode next layer extractor.
Positional arguments:
* dict_ -- dict, info buffer
* proto -- str, next layer protocol name
* length -- int, valid (not padding) length
Keyword Arguments:
* version -- int, IP version (4 in default)
<keyword> 4 / 6
* ext_proto -- ProtoChain, ProtoChain of IPv6 extension headers
Returns:
* dict -- current protocol with next layer extracted | 5.89928 | 5.57629 | 1.057922 |
if length == 0:
from pcapkit.protocols.null import NoPayload as Protocol
elif self._sigterm or proto == 59:
from pcapkit.protocols.raw import Raw as Protocol
elif proto == 51:
from pcapkit.protocols.internet.ah import AH as Protocol
elif proto == 139:
from pcapkit.protocols.internet.hip import HIP as Protocol
elif proto == 0:
from pcapkit.protocols.internet.hopopt import HOPOPT as Protocol
elif proto == 44:
from pcapkit.protocols.internet.ipv6_frag import IPv6_Frag as Protocol
elif proto == 60:
from pcapkit.protocols.internet.ipv6_opts import IPv6_Opts as Protocol
elif proto == 43:
from pcapkit.protocols.internet.ipv6_route import IPv6_Route as Protocol
elif proto == 135:
from pcapkit.protocols.internet.mh import MH as Protocol
elif proto == 4:
from pcapkit.protocols.internet.ipv4 import IPv4 as Protocol
elif proto == 41:
from pcapkit.protocols.internet.ipv6 import IPv6 as Protocol
elif proto == 6:
from pcapkit.protocols.transport.tcp import TCP as Protocol
elif proto == 17:
from pcapkit.protocols.transport.udp import UDP as Protocol
else:
from pcapkit.protocols.raw import Raw as Protocol
next_ = Protocol(self._file, length, version=version, extension=extension,
error=self._onerror, layer=self._exlayer, protocol=self._exproto)
return next_ | def _import_next_layer(self, proto, length=None, *, version=4, extension=False) | Import next layer extractor.
Positional arguments:
* proto -- str, next layer protocol name
* length -- int, valid (not padding) length
Keyword Arguments:
* version -- int, IP version (4 in default)
<keyword> 4 / 6
* extension -- bool, if is extension header (False in default)
<keyword> True / False
Returns:
* bool -- flag if extraction of next layer succeeded
* Info -- info of next layer
* ProtoChain -- protocol chain of next layer
* str -- alias of next layer
Protocols:
* IPv4 -- internet layer
* IPv6 -- internet layer
* AH -- internet layer
* TCP -- transport layer
* UDP -- transport layer | 2.397974 | 2.438436 | 0.983407 |
if length is None:
length = len(self)
_next = self._read_protos(1)
_hlen = self._read_unpack(1)
_type = self._read_binary(1)
if _type[0] != '0':
raise ProtocolError('HIP: invalid format')
_vers = self._read_binary(1)
if _vers[7] != '1':
raise ProtocolError('HIP: invalid format')
_csum = self._read_fileng(2)
_ctrl = self._read_binary(2)
_shit = self._read_unpack(16)
_rhit = self._read_unpack(16)
hip = dict(
next=_next,
length=(_hlen + 1) * 8,
type=_HIP_TYPES.get(int(_type[1:], base=2), 'Unassigned'),
version=int(_vers[:4], base=2),
chksum=_csum,
control=dict(
anonymous=True if int(_ctrl[15], base=2) else False,
),
shit=_shit,
rhit=_rhit,
)
_prml = _hlen - 38
if _prml:
parameters = self._read_hip_para(_prml, version=hip['version'])
hip['parameters'] = parameters[0] # tuple of parameter acronyms
hip.update(parameters[1]) # merge parameters info to buffer
length -= hip['length']
hip['packet'] = self._read_packet(header=hip['length'], payload=length)
if extension:
self._protos = None
return hip
return self._decode_next_layer(hip, _next, length) | def read_hip(self, length, extension) | Read Host Identity Protocol.
Structure of HIP header [RFC 5201][RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Header Length |0| Packet Type |Version| RES.|1|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Checksum | Controls |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sender's Host Identity Tag (HIT) |
| |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Receiver's Host Identity Tag (HIT) |
| |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
/ HIP Parameters /
/ /
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip.next Next Header
1 8 hip.length Header Length
2 16 - Reserved (0)
2 17 hip.type Packet Type
3 24 hip.version Version
3 28 - Reserved
3 31 - Reserved (1)
4 32 hip.chksum Checksum
6 48 hip.control Controls
8 64 hip.shit Sender's Host Identity Tag
24 192 hip.rhit Receiver's Host Identity Tag
40 320 hip.parameters HIP Parameters | 4.539284 | 3.634942 | 1.248791 |
counter = 0 # length of read parameters
optkind = list() # parameter type list
options = dict() # dict of parameter data
while counter < length:
# break when eol triggered
kind = self._read_binary(2)
if not kind:
break
# get parameter type & C-bit
code = int(kind, base=2)
cbit = True if int(kind[15], base=2) else False
# get parameter length
clen = self._read_unpack(2)
plen = 11 + clen - (clen + 3) % 8
# extract parameter
dscp = _HIP_PARA.get(code, 'Unassigned')
# if 0 <= code <= 1023 or 61440 <= code <= 65535:
# desc = f'{dscp} (IETF Review)'
# elif 1024 <= code <= 32767 or 49152 <= code <= 61439:
# desc = f'{dscp} (Specification Required)'
# elif 32768 <= code <= 49151:
# desc = f'{dscp} (Reserved for Private Use)'
# else:
# raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid parameter')
data = _HIP_PROC(dscp)(self, code, cbit, clen, desc=dscp, length=plen, version=version)
# record parameter data
counter += plen
if dscp in optkind:
if isinstance(options[dscp], tuple):
options[dscp] += (Info(data),)
else:
options[dscp] = (Info(options[dscp]), Info(data))
else:
optkind.append(dscp)
options[dscp] = data
# check threshold
if counter != length:
raise ProtocolError(f'HIPv{version}: invalid format')
return tuple(optkind), options | def _read_hip_para(self, length, *, version) | Read HIP parameters.
Positional arguments:
* length -- int, length of parameters
Keyword arguments:
* version -- int, HIP version
Returns:
* dict -- extracted HIP parameters | 4.508835 | 4.48476 | 1.005368 |
unassigned = dict(
type=desc,
critical=cbit,
length=clen,
contents=self._read_fileng(clen),
)
plen = length - clen
if plen:
self._read_fileng(plen)
return unassigned | def _read_para_unassigned(self, code, cbit, clen, *, desc, length, version) | Read HIP unassigned parameters.
Structure of HIP unassigned parameters [RFC 5201][RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type |C| Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
/ Contents /
/ +-+-+-+-+-+-+-+-+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 para.type Parameter Type
1 15 para.critical Critical Bit
2 16 para.length Length of Contents
4 32 para.contents Contents
- - - Padding | 4.96014 | 3.881894 | 1.277763 |
if clen != 12:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_resv = self._read_fileng(2)
_kind = self._read_unpack(2)
_olds = self._read_unpack(2)
_news = self._read_unpack(2)
esp_info = dict(
type=desc,
critical=cbit,
length=clen,
index=_kind,
old_spi=_olds,
new_spi=_news,
)
return esp_info | def _read_para_esp_info(self, code, cbit, clen, *, desc, length, version) | Read HIP ESP_INFO parameter.
Structure of HIP ESP_INFO parameter [RFC 7402]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved | KEYMAT Index |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| OLD SPI |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| NEW SPI |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 esp_info.type Parameter Type
1 15 esp_info.critical Critical Bit
2 16 esp_info.length Length of Contents
4 32 - Reserved
6 48 esp_info.index KEYMAT Index
8 64 esp_info.old_spi OLD SPI
12 96 esp_info.new_spi NEW SPI | 6.414338 | 4.278646 | 1.499152 |
if clen != 12:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
if code == 128 and version != 1:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid parameter')
_resv = self._read_fileng(4)
_genc = self._read_unpack(8)
r1_counter = dict(
type=desc,
critical=cbit,
length=clen,
count=_genc,
)
return r1_counter | def _read_para_r1_counter(self, code, cbit, clen, *, desc, length, version) | Read HIP R1_COUNTER parameter.
Structure of HIP R1_COUNTER parameter [RFC 5201][RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved, 4 bytes |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| R1 generation counter, 8 bytes |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 ri_counter.type Parameter Type
1 15 ri_counter.critical Critical Bit
2 16 ri_counter.length Length of Contents
4 32 - Reserved
8 64 ri_counter.count Generation of Valid Puzzles | 6.742385 | 5.044722 | 1.336523 |
def _read_locator(kind, size):
if kind == 0 and size == 16:
return ipaddress.ip_address(self._read_fileng(16))
elif kind == 1 and size == 20:
return dict(
spi=self._read_unpack(4),
ip=ipaddress.ip_address(self._read_fileng(16)),
)
else:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_size = 0 # length of read locators
_locs = list() # list of locators
while _size < clen:
_traf = self._read_unpack(1)
_loct = self._read_unpack(1)
_locl = self._read_unpack(1) * 4
_resp = self._read_binary(1)
_life = self._read_unpack(4)
_lobj = _read_locator(_loct, _locl)
_locs.append(Info(
traffic=_traf,
type=_loct,
length=_locl,
preferred=int(_resp[7], base=2),
lifetime=_life,
object=_lobj,
))
locator_set = dict(
type=desc,
critical=cbit,
length=clen,
locator=tuple(_locs),
)
return locator_set | def _read_para_locator_set(self, code, cbit, clen, *, desc, length, version) | Read HIP LOCATOR_SET parameter.
Structure of HIP LOCATOR_SET parameter [RFC 8046]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Traffic Type | Locator Type | Locator Length | Reserved |P|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Locator Lifetime |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Locator |
| |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
. .
. .
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Traffic Type | Locator Type | Locator Length | Reserved |P|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Locator Lifetime |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Locator |
| |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 locator_set.type Parameter Type
1 15 locator_set.critical Critical Bit
2 16 locator_set.length Length of Contents
4 32 locator.traffic Traffic Type
5 40 locator.type Locator Type
6 48 locator.length Locator Length
7 56 - Reserved
7 63 locator.preferred Preferred Locator
8 64 locator.lifetime Locator Lifetime
12 96 locator.object Locator
............ | 4.520866 | 3.75155 | 1.205066 |
if version == 1 and clen != 12:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_numk = self._read_unpack(1)
_time = self._read_unpack(1)
_opak = self._read_fileng(2)
_rand = self._read_unpack(clen-4)
puzzle = dict(
type=desc,
critical=cbit,
length=clen,
number=_numk,
lifetime=2 ** (_time - 32),
opaque=_opak,
random=_rand,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return puzzle | def _read_para_puzzle(self, code, cbit, clen, *, desc, length, version) | Read HIP PUZZLE parameter.
Structure of HIP PUZZLE parameter [RFC 5201][RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| #K, 1 byte | Lifetime | Opaque, 2 bytes |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Random #I, RHASH_len / 8 bytes |
/ /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 puzzle.type Parameter Type
1 15 puzzle.critical Critical Bit
2 16 puzzle.length Length of Contents
4 32 puzzle.number Number of Verified Bits
5 40 puzzle.lifetime Lifetime
6 48 puzzle.opaque Opaque
8 64 puzzle.random Random Number | 5.972285 | 4.179821 | 1.428837 |
if clen != 4:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_upid = self._read_unpack(4)
seq = dict(
type=desc,
critical=cbit,
length=clen,
id=_upid,
)
return seq | def _read_para_seq(self, code, cbit, clen, *, desc, length, version) | Read HIP SEQ parameter.
Structure of HIP SEQ parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Update ID |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 seq.type Parameter Type
1 15 seq.critical Critical Bit
2 16 seq.length Length of Contents
4 32 seq.id Update ID | 12.143195 | 7.543375 | 1.609783 |
if clen % 4 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_upid = list()
for _ in range(clen // 4):
_upid.append(self._read_unpack(4))
ack = dict(
type=desc,
critical=cbit,
length=clen,
id=tuple(_upid),
)
return ack | def _read_para_ack(self, code, cbit, clen, *, desc, length, version) | Read HIP ACK parameter.
Structure of HIP ACK parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| peer Update ID 1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ peer Update ID n |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 ack.type Parameter Type
1 15 ack.critical Critical Bit
2 16 ack.length Length of Contents
4 32 ack.id Peer Update ID | 6.782451 | 5.003679 | 1.355493 |
_dhid = list()
for _ in range(clen):
_dhid.append(_GROUP_ID.get(self._read_unpack(1), 'Unassigned'))
dh_group_list = dict(
type=desc,
critical=cbit,
length=clen,
id=tuple(_dhid),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return dh_group_list | def _read_para_dh_group_list(self, code, cbit, clen, *, desc, length, version) | Read HIP DH_GROUP_LIST parameter.
Structure of HIP DH_GROUP_LIST parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| DH GROUP ID #1| DH GROUP ID #2| DH GROUP ID #3| DH GROUP ID #4|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| DH GROUP ID #n| Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 dh_group_list.type Parameter Type
1 15 dh_group_list.critical Critical Bit
2 16 dh_group_list.length Length of Contents
4 32 dh_group_list.id DH GROUP ID | 4.977359 | 4.059136 | 1.226211 |
_gpid = self._read_unpack(1)
_vlen = self._read_unpack(2)
_pval = self._read_fileng(_vlen)
diffie_hellman = dict(
type=desc,
critical=cbit,
length=clen,
id=_GROUP_ID.get(_gpid, 'Unassigned'),
pub_len=_vlen,
pub_val=_pval,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return diffie_hellman | def _read_para_diffie_hellman(self, code, cbit, clen, *, desc, length, version) | Read HIP DIFFIE_HELLMAN parameter.
Structure of HIP DIFFIE_HELLMAN parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Group ID | Public Value Length | Public Value /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 diffie_hellman.type Parameter Type
1 15 diffie_hellman.critical Critical Bit
2 16 diffie_hellman.length Length of Contents
4 32 diffie_hellman.id Group ID
5 40 diffie_hellman.pub_len Public Value Length
6 48 diffie_hellman.pub_val Public Value
? ? - Padding | 4.768718 | 3.28159 | 1.453173 |
if version != 1:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid parameter')
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_stid = list()
for _ in range(clen // 2):
_stid.append(_SUITE_ID.get(self._read_unpack(2), 'Unassigned'))
hip_transform = dict(
type=desc,
critical=cbit,
length=clen,
id=_stid,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_transform | def _read_para_hip_transform(self, code, cbit, clen, *, desc, length, version) | Read HIP HIP_TRANSFORM parameter.
Structure of HIP HIP_TRANSFORM parameter [RFC 5201]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Suite ID #1 | Suite ID #2 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Suite ID #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_transform.type Parameter Type
1 15 hip_transform.critical Critical Bit
2 16 hip_transform.length Length of Contents
4 32 hip_transform.id Group ID
............
? ? - Padding | 5.145652 | 4.070499 | 1.264133 |
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_cpid = list()
for _ in range(clen // 2):
_cpid.append(_CIPHER_ID.get(self._read_unpack(2), 'Unassigned'))
hip_cipher = dict(
type=desc,
critical=cbit,
length=clen,
id=_cpid,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_cipher | def _read_para_hip_cipher(self, code, cbit, clen, *, desc, length, version) | Read HIP HIP_CIPHER parameter.
Structure of HIP HIP_CIPHER parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Cipher ID #1 | Cipher ID #2 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Cipher ID #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_cipher.type Parameter Type
1 15 hip_cipher.critical Critical Bit
2 16 hip_cipher.length Length of Contents
4 32 hip_cipher.id Cipher ID
............
? ? - Padding | 6.087323 | 5.026024 | 1.211161 |
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_resv = self._read_fileng(2)
_mdid = list()
for _ in range((clen - 2) // 2):
_mdid.append(_MODE_ID.get(self._read_unpack(2), 'Unassigned'))
nat_traversal_mode = dict(
type=desc,
critical=cbit,
length=clen,
id=_mdid,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return nat_traversal_mode | def _read_para_nat_traversal_mode(self, code, cbit, clen, *, desc, length, version) | Read HIP NAT_TRAVERSAL_MODE parameter.
Structure of HIP NAT_TRAVERSAL_MODE parameter [RFC 5770]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved | Mode ID #1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Mode ID #2 | Mode ID #3 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Mode ID #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 nat_traversal_mode.type Parameter Type
1 15 nat_traversal_mode.critical Critical Bit
2 16 nat_traversal_mode.length Length of Contents
4 32 - Reserved
6 48 nat_traversal_mode.id Mode ID
............
? ? - Padding | 6.120308 | 5.130375 | 1.192955 |
if clen != 4:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_data = self._read_unpack(4)
transaction_pacing = dict(
type=desc,
critical=cbit,
length=clen,
min_ta=_data,
)
return transaction_pacing | def _read_para_transaction_pacing(self, code, cbit, clen, *, desc, length, version) | Read HIP TRANSACTION_PACING parameter.
Structure of HIP TRANSACTION_PACING parameter [RFC 5770]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Min Ta |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 transaction_pacing.type Parameter Type
1 15 transaction_pacing.critical Critical Bit
2 16 transaction_pacing.length Length of Contents
4 32 transaction_pacing.min_ta Min Ta | 10.035397 | 5.375309 | 1.866943 |
_resv = self._read_fileng(4)
_data = self._read_fileng(clen-4)
encrypted = dict(
type=desc,
critical=cbit,
length=clen,
raw=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return encrypted | def _read_para_encrypted(self, code, cbit, clen, *, desc, length, version) | Read HIP ENCRYPTED parameter.
Structure of HIP ENCRYPTED parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| IV /
/ /
/ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ /
/ Encrypted data /
/ /
/ +-------------------------------+
/ | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 encrypted.type Parameter Type
1 15 encrypted.critical Critical Bit
2 16 encrypted.length Length of Contents
4 32 - Reserved
8 48 encrypted.iv Initialization Vector
? ? encrypted.data Encrypted data
? ? - Padding | 5.014655 | 4.244836 | 1.181354 |
def _read_host_identifier(length, code):
algorithm = _HI_ALGORITHM.get(code, 'Unassigned')
if algorithm == 'ECDSA':
host_id = dict(
curve=_ECDSA_CURVE.get(self._read_unpack(2)),
pubkey=self._read_fileng(length-2),
)
elif algorithm == 'ECDSA_LOW':
host_id = dict(
curve=_ECDSA_LOW_CURVE.get(self._read_unpack(2)),
pubkey=self._read_fileng(length-2),
)
else:
host_id = self._read_fileng(length)
return algorithm, host_id
def _read_domain_identifier(di_data):
di_type = _DI_TYPE.get(int(di_data[:4], base=2), 'Unassigned')
di_len = int(di_data[4:], base=2)
domain_id = self._read_fileng(di_len)
return di_type, di_len, domain_id
_hlen = self._read_unpack(2)
_didt = self._read_binary(2)
_algo = self._read_unpack(2)
_hidf = _read_host_identifier(_hlen, _algo)
_didf = _read_domain_identifier(_didt)
host_id = dict(
type=desc,
critical=cbit,
length=clen,
id_len=_hlen,
di_type=_didf[0],
di_len=_didf[1],
algorithm=_hidf[0],
host_id=_hidf[1],
domain_id=_didf[2],
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return host_id | def _read_para_host_id(self, code, cbit, clen, *, desc, length, version) | Read HIP HOST_ID parameter.
Structure of HIP HOST_ID parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| HI Length |DI-Type| DI Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Algorithm | Host Identity /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ | Domain Identifier /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 host_id.type Parameter Type
1 15 host_id.critical Critical Bit
2 16 host_id.length Length of Contents
4 32 host_id.id_len Host Identity Length
6 48 host_id.di_type Domain Identifier Type
6 52 host_id.di_len Domain Identifier Length
8 64 host_id.algorithm Algorithm
10 80 host_id.host_id Host Identity
? ? host_id.domain_id Domain Identifier
? ? - Padding | 2.789326 | 2.332926 | 1.195634 |
_hsid = list()
for _ in range(clen):
_hsid.append(_HIT_SUITE_ID.get(self._read_unpack(1), 'Unassigned'))
hit_suite_list = dict(
type=desc,
critical=cbit,
length=clen,
id=tuple(_hsid),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hit_suite_list | def _read_para_hit_suite_list(self, code, cbit, clen, *, desc, length, version) | Read HIP HIT_SUITE_LIST parameter.
Structure of HIP HIT_SUITE_LIST parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| ID #1 | ID #2 | ID #3 | ID #4 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| ID #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hit_suite_list.type Parameter Type
1 15 hit_suite_list.critical Critical Bit
2 16 hit_suite_list.length Length of Contents
4 32 hit_suite_list.id HIT Suite ID
............
? ? - Padding | 5.074521 | 3.926154 | 1.292491 |
_ctgp = self._read_unpack(1)
_ctct = self._read_unpack(1)
_ctid = self._read_unpack(1)
_cttp = self._read_unpack(1)
_ctdt = self._read_fileng(clen-4)
cert = dict(
type=desc,
critical=cbit,
length=clen,
group=_GROUP_ID.get(_ctgp, 'Unassigned'),
count=_ctct,
id=_ctid,
cert_type=_CERT_TYPE.get(_cttp, 'Unassigned'),
certificate=_ctdt,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return cert | def _read_para_cert(self, code, cbit, clen, *, desc, length, version) | Read HIP CERT parameter.
Structure of HIP CERT parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| CERT group | CERT count | CERT ID | CERT type |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Certificate /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ | Padding (variable length) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 cert.type Parameter Type
1 15 cert.critical Critical Bit
2 16 cert.length Length of Contents
4 32 cert.group CERT Group
5 40 cert.count CERT Count
6 48 cert.id CERT ID
7 56 cert.cert_type CERT Type
8 64 cert.certificate Certificate
? ? - Padding | 3.826371 | 2.923468 | 1.308847 |
_resv = self._read_fileng(2)
_code = self._read_unpack(2)
_data = self._read_fileng(2)
_type = _NOTIFICATION_TYPE.get(_code)
if _type is None:
if 1 <= _code <= 50:
_type = 'Unassigned (IETF Review)'
elif 51 <= _code <= 8191:
_type = 'Unassigned (Specification Required; Error Message)'
elif 8192 <= _code <= 16383:
_type = 'Unassigned (Reserved for Private Use; Error Message)'
elif 16384 <= _code <= 40959:
_type = 'Unassigned (Specification Required; Status Message)'
elif 40960 <= _code <= 65535:
_type = 'Unassigned (Reserved for Private Use; Status Message)'
else:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
notification = dict(
type=desc,
critical=cbit,
length=clen,
msg_type=_type,
data=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return notification | def _read_para_notification(self, code, cbit, clen, *, desc, length, version) | Read HIP NOTIFICATION parameter.
Structure of HIP NOTIFICATION parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved | Notify Message Type |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| /
/ Notification Data /
/ +---------------+
/ | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 notification.type Parameter Type
1 15 notification.critical Critical Bit
2 16 notification.length Length of Contents
4 32 - Reserved
6 48 notification.msg_type Notify Message Type
8 64 notification.data Notification Data
? ? - Padding | 3.616491 | 3.373756 | 1.071948 |
_data = self._read_fileng(clen)
echo_request_signed = dict(
type=desc,
critical=cbit,
length=clen,
data=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return echo_request_signed | def _read_para_echo_request_signed(self, code, cbit, clen, *, desc, length, version) | Read HIP ECHO_REQUEST_SIGNED parameter.
Structure of HIP ECHO_REQUEST_SIGNED parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Opaque data (variable length) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 echo_request_signed.type Parameter Type
1 15 echo_request_signed.critical Critical Bit
2 16 echo_request_signed.length Length of Contents
4 32 echo_request_signed.data Opaque Data | 3.992866 | 3.285066 | 1.21546 |
_life = collections.namedtuple('Lifetime', ('min', 'max'))
_mint = self._read_unpack(1)
_maxt = self._read_unpack(1)
_type = list()
for _ in range(clen-2):
_code = self._read_unpack(1)
_kind = _REG_FAILURE_TYPE.get(_code)
if _kind is None:
if 0 <= _code <= 200:
_kind = 'Unassigned (IETF Review)'
elif 201 <= _code <= 255:
_kind = 'Unassigned (Reserved for Private Use)'
else:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_type.append(_kind)
reg_failed = dict(
type=desc,
critical=cbit,
length=clen,
lifetime=_life(_mint, _maxt),
reg_type=tuple(_type),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return reg_failed | def _read_para_reg_failed(self, code, cbit, clen, *, desc, length, version) | Read HIP REG_FAILED parameter.
Structure of HIP REG_FAILED parameter [RFC 8003]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Lifetime | Reg Type #1 | Reg Type #2 | Reg Type #3 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| ... | ... | Reg Type #n | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Padding +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 reg_failed.type Parameter Type
1 15 reg_failed.critical Critical Bit
2 16 reg_failed.length Length of Contents
4 32 reg_failed.lifetime Lifetime
4 32 reg_failed.lifetime.min Min Lifetime
5 40 reg_failed.lifetime.max Max Lifetime
6 48 reg_failed.reg_typetype Reg Type
...........
? ? - Padding | 4.764068 | 3.927832 | 1.2129 |
if clen != 20:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_port = self._read_unpack(2)
_ptcl = self._read_unpack(1)
_resv = self._read_fileng(1)
_addr = self._read_fileng(16)
reg_from = dict(
type=desc,
critical=cbit,
length=clen,
port=_port,
protocol=TP_PROTO.get(_ptcl),
ip=ipaddress.ip_address(_addr),
)
return reg_from | def _read_para_reg_from(self, code, cbit, clen, *, desc, length, version) | Read HIP REG_FROM parameter.
Structure of HIP REG_FROM parameter [RFC 5770]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Port | Protocol | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 reg_from.type Parameter Type
1 15 reg_from.critical Critical Bit
2 16 reg_from.length Length of Contents
4 32 reg_from.port Port
6 48 reg_from.protocol Protocol
7 56 - Reserved
8 64 reg_from.ip Address (IPv6) | 6.469426 | 4.357806 | 1.48456 |
_data = self._read_fileng(clen)
echo_response_signed = dict(
type=desc,
critical=cbit,
length=clen,
data=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return echo_response_signed | def _read_para_echo_response_signed(self, code, cbit, clen, *, desc, length, version) | Read HIP ECHO_RESPONSE_SIGNED parameter.
Structure of HIP ECHO_RESPONSE_SIGNED parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Opaque data (variable length) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 echo_response_signed.type Parameter Type
1 15 echo_response_signed.critical Critical Bit
2 16 echo_response_signed.length Length of Contents
4 32 echo_response_signed.data Opaque Data | 3.960182 | 3.267492 | 1.211995 |
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_tfid = list()
for _ in range(clen // 2):
_tfid.append(self._read_unpack(2))
transport_format_list = dict(
type=desc,
critical=cbit,
length=clen,
tf_type=tuple(_tfid),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return transport_format_list | def _read_para_transport_format_list(self, code, cbit, clen, *, desc, length, version) | Read HIP TRANSPORT_FORMAT_LIST parameter.
Structure of HIP TRANSPORT_FORMAT_LIST parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| TF type #1 | TF type #2 /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ TF type #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 transport_format_list.type Parameter Type
1 15 transport_format_list.critical Critical Bit
2 16 transport_format_list.length Length of Contents
4 32 transport_format_list.tf_type TF Type
............
? ? - Padding | 5.624038 | 4.266928 | 1.318053 |
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_resv = self._read_fileng(2)
_stid = list()
for _ in range((clen - 2) // 2):
_stid.append(_ESP_SUITE_ID.get(self._read_unpack(2), 'Unassigned'))
esp_transform = dict(
type=desc,
critical=cbit,
length=clen,
id=tuple(_stid),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return esp_transform | def _read_para_esp_transform(self, code, cbit, clen, *, desc, length, version) | Read HIP ESP_TRANSFORM parameter.
Structure of HIP ESP_TRANSFORM parameter [RFC 7402]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved | Suite ID #1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Suite ID #2 | Suite ID #3 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Suite ID #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 esp_transform.type Parameter Type
1 15 esp_transform.critical Critical Bit
2 16 esp_transform.length Length of Contents
4 32 - Reserved
6 48 esp_transform.id Suite ID
............
? ? - Padding | 6.35317 | 5.094151 | 1.24715 |
if clen != 4:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_seqn = self._read_unpack(4)
seq_data = dict(
type=desc,
critical=cbit,
length=clen,
seq=_seqn,
)
return seq_data | def _read_para_seq_data(self, code, cbit, clen, *, desc, length, version) | Read HIP SEQ_DATA parameter.
Structure of HIP SEQ_DATA parameter [RFC 6078]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 seq_data.type Parameter Type
1 15 seq_data.critical Critical Bit
2 16 seq_data.length Length of Contents
4 32 seq_data.seq Sequence number | 9.599232 | 6.478459 | 1.481715 |
if clen % 4 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_ackn = list()
for _ in range(clen // 4):
_ackn.append(self._read_unpack(4))
ack_data = dict(
type=desc,
critical=cbit,
length=clen,
ack=tuple(_ackn),
)
return ack_data | def _read_para_ack_data(self, code, cbit, clen, *, desc, length, version) | Read HIP ACK_DATA parameter.
Structure of HIP ACK_DATA parameter [RFC 6078]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Acked Sequence number /
/ /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 ack_data.type Parameter Type
1 15 ack_data.critical Critical Bit
2 16 ack_data.length Length of Contents
4 32 ack_data.ack Acked Sequence number | 5.886178 | 4.728151 | 1.244922 |
_next = self._read_unpack(1)
_resv = self._read_fileng(3)
_data = self._read_fileng(4)
_micv = self._read_fileng(clen-8)
payload_mic = dict(
type=desc,
critical=cbit,
length=clen,
next=TP_PROTO.get(_next),
data=_data,
value=_micv,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return payload_mic | def _read_para_payload_mic(self, code, cbit, clen, *, desc, length, version) | Read HIP ACK_DATA parameter.
Structure of HIP ACK_DATA parameter [RFC 6078]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Payload Data |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
/ MIC Value /
/ +-+-+-+-+-+-+-+-+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 payload_mic.type Parameter Type
1 15 payload_mic.critical Critical Bit
2 16 payload_mic.length Length of Contents
4 32 payload_mic.next Next Header
5 40 - Reserved
8 64 payload_mic.data Payload Data
12 96 payload_mic.value MIC Value
? ? - Padding | 4.6696 | 3.734748 | 1.250312 |
_tsid = self._read_unpack(clen)
transaction_id = dict(
type=desc,
critical=cbit,
length=clen,
id=_tsid,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return transaction_id | def _read_para_transaction_id(self, code, cbit, clen, *, desc, length, version) | Read HIP TRANSACTION_ID parameter.
Structure of HIP TRANSACTION_ID parameter [RFC 6078]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Identifier /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 transaction_id.type Parameter Type
1 15 transaction_id.critical Critical Bit
2 16 transaction_id.length Length of Contents
4 32 transaction_id.id Identifier | 5.257873 | 4.199193 | 1.252115 |
_olid = self._read_unpack(clen)
overlay_id = dict(
type=desc,
critical=cbit,
length=clen,
id=_olid,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return overlay_id | def _read_para_overlay_id(self, code, cbit, clen, *, desc, length, version) | Read HIP TRANSACTION_ID parameter.
Structure of HIP TRANSACTION_ID parameter [RFC 6079]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Identifier /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 overlay_id.type Parameter Type
1 15 overlay_id.critical Critical Bit
2 16 overlay_id.length Length of Contents
4 32 overlay_id.id Identifier | 5.158573 | 4.381285 | 1.177411 |
if (clen - 4) % 16 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_flag = self._read_binary(2)
_resv = self._read_fileng(2)
_addr = list()
for _ in range((clen - 4) // 16):
_addr.append(ipaddress.ip_address(self._read_fileng(16)))
route_dst = dict(
type=desc,
critical=cbit,
length=clen,
flags=dict(
symmetric=True if int(_flag[0], base=2) else False,
must_follow=True if int(_flag[1], base=2) else False,
),
ip=tuple(_addr),
)
return route_dst | def _read_para_route_dst(self, code, cbit, clen, *, desc, length, version) | Read HIP ROUTE_DST parameter.
Structure of HIP ROUTE_DST parameter [RFC 6028]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Flags | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HIT #1 |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
. . .
. . .
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HIT #n |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 route_dst.type Parameter Type
1 15 route_dst.critical Critical Bit
2 16 route_dst.length Length of Contents
4 32 route_dst.flags Flags
4 32 route_dst.flags.symmetric SYMMETRIC [RFC 6028]
4 33 route_dst.flags.must_follow MUST_FOLLOW [RFC 6028]
6 48 - Reserved
8 64 route_dst.ip HIT
............ | 4.456692 | 3.416002 | 1.304651 |
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_port = self._read_unpack(2)
_mdid = list()
for _ in range((clen - 2) // 2):
_mdid.append(_TP_MODE_ID.get(self._read_unpack(2), 'Unassigned'))
hip_transport_mode = dict(
type=desc,
critical=cbit,
length=clen,
port=_port,
id=tuple(_mdid),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_transport_mode | def _read_para_hip_transport_mode(self, code, cbit, clen, *, desc, length, version) | Read HIP HIP_TRANSPORT_MODE parameter.
Structure of HIP HIP_TRANSPORT_MODE parameter [RFC 6261]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Port | Mode ID #1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Mode ID #2 | Mode ID #3 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Mode ID #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_transport_mode.type Parameter Type
1 15 hip_transport_mode.critical Critical Bit
2 16 hip_transport_mode.length Length of Contents
4 32 hip_transport_mode.port Port
6 48 hip_transport_mode.id Mode ID
............
? ? - Padding | 5.475774 | 4.378584 | 1.250581 |
_hmac = self._read_fileng(clen)
hip_mac = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_mac | def _read_para_hip_mac(self, code, cbit, clen, *, desc, length, version) | Read HIP HIP_MAC parameter.
Structure of HIP HIP_MAC parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_mac.type Parameter Type
1 15 hip_mac.critical Critical Bit
2 16 hip_mac.length Length of Contents
4 32 hip_mac.hmac HMAC
? ? - Padding | 4.448202 | 3.425693 | 1.298482 |
_hmac = self._read_fileng(clen)
hip_mac_2 = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_mac_2 | def _read_para_hip_mac_2(self, code, cbit, clen, *, desc, length, version) | Read HIP HIP_MAC_2 parameter.
Structure of HIP HIP_MAC_2 parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_mac_2.type Parameter Type
1 15 hip_mac_2.critical Critical Bit
2 16 hip_mac_2.length Length of Contents
4 32 hip_mac_2.hmac HMAC
? ? - Padding | 4.122571 | 3.209229 | 1.284598 |
_algo = self._read_unpack(2)
_sign = self._read_fileng(clen-2)
hip_signature_2 = dict(
type=desc,
critical=cbit,
length=clen,
algorithm=_HI_ALGORITHM.get(_algo, 'Unassigned'),
signature=_sign,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_signature_2 | def _read_para_hip_signature_2(self, code, cbit, clen, *, desc, length, version) | Read HIP HIP_SIGNATURE_2 parameter.
Structure of HIP HIP_SIGNATURE_2 parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SIG alg | Signature /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_signature_2.type Parameter Type
1 15 hip_signature_2.critical Critical Bit
2 16 hip_signature_2.length Length of Contents
4 32 hip_signature_2.algorithm SIG Algorithm
6 48 hip_signature_2.signature Signature
? ? - Padding | 5.143594 | 3.985769 | 1.29049 |
_data = self._read_fileng(clen)
echo_request_unsigned = dict(
type=desc,
critical=cbit,
length=clen,
data=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return echo_request_unsigned | def _read_para_echo_request_unsigned(self, code, cbit, clen, *, desc, length, version) | Read HIP ECHO_REQUEST_UNSIGNED parameter.
Structure of HIP ECHO_REQUEST_UNSIGNED parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Opaque data (variable length) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 echo_request_unsigned.type Parameter Type
1 15 echo_request_unsigned.critical Critical Bit
2 16 echo_request_unsigned.length Length of Contents
4 32 echo_request_unsigned.data Opaque Data | 4.073941 | 3.324292 | 1.225506 |
_data = self._read_fileng(clen)
echo_response_unsigned = dict(
type=desc,
critical=cbit,
length=clen,
data=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return echo_response_unsigned | def _read_para_echo_response_unsigned(self, code, cbit, clen, *, desc, length, version) | Read HIP ECHO_RESPONSE_UNSIGNED parameter.
Structure of HIP ECHO_RESPONSE_UNSIGNED parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Opaque data (variable length) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 echo_response_unsigned.type Parameter Type
1 15 echo_response_unsigned.critical Critical Bit
2 16 echo_response_unsigned.length Length of Contents
4 32 echo_response_unsigned.data Opaque Data | 4.074225 | 3.280403 | 1.241989 |
if clen != 4:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_ttln = self._read_unpack(2)
overlay_ttl = dict(
type=desc,
critical=cbit,
length=clen,
ttl=_ttln,
)
return overlay_ttl | def _read_para_overlay_ttl(self, code, cbit, clen, *, desc, length, version) | Read HIP OVERLAY_TTL parameter.
Structure of HIP OVERLAY_TTL parameter [RFC 6078]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| TTL | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 overlay_ttl.type Parameter Type
1 15 overlay_ttl.critical Critical Bit
2 16 overlay_ttl.length Length of Contents
4 32 overlay_ttl.ttl TTL
6 48 - Reserved | 8.589677 | 7.120255 | 1.206372 |
if clen != 16:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_addr = self._read_fileng(16)
from_ = dict(
type=desc,
critical=cbit,
length=clen,
ip=ipaddress.ip_address(_addr),
)
return from_ | def _read_para_from(self, code, cbit, clen, *, desc, length, version) | Read HIP FROM parameter.
Structure of HIP FROM parameter [RFC 8004]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 from.type Parameter Type
1 15 from.critical Critical Bit
2 16 from.length Length of Contents
4 32 from.ip Address | 9.673621 | 6.528733 | 1.4817 |
_hmac = self._read_fileng(clen)
rvs_hmac = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return rvs_hmac | def _read_para_rvs_hmac(self, code, cbit, clen, *, desc, length, version) | Read HIP RVS_HMAC parameter.
Structure of HIP RVS_HMAC parameter [RFC 8004]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 rvs_hmac.type Parameter Type
1 15 rvs_hmac.critical Critical Bit
2 16 rvs_hmac.length Length of Contents
4 32 rvs_hmac.hmac HMAC
? ? - Padding | 4.277079 | 3.425964 | 1.248431 |
if clen % 16 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_addr = list()
for _ in range(clen // 16):
_addr.append(ipaddress.ip_address(self._read_fileng(16)))
via_rvs = dict(
type=desc,
critical=cbit,
length=clen,
ip=tuple(_addr),
)
return via_rvs | def _read_para_via_rvs(self, code, cbit, clen, *, desc, length, version) | Read HIP VIA_RVS parameter.
Structure of HIP VIA_RVS parameter [RFC 6028]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
. . .
. . .
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 via_rvs.type Parameter Type
1 15 via_rvs.critical Critical Bit
2 16 via_rvs.length Length of Contents
4 32 via_rvs.ip Address
............ | 6.595158 | 4.41546 | 1.493652 |
_hmac = self._read_fileng(clen)
relay_hmac = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return relay_hmac | def _read_para_relay_hmac(self, code, cbit, clen, *, desc, length, version) | Read HIP RELAY_HMAC parameter.
Structure of HIP RELAY_HMAC parameter [RFC 5770]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 relay_hmac.type Parameter Type
1 15 relay_hmac.critical Critical Bit
2 16 relay_hmac.length Length of Contents
4 32 relay_hmac.hmac HMAC
? ? - Padding | 4.075726 | 3.369635 | 1.209545 |
pcapkit = f'{os.path.sep}pcapkit{os.path.sep}'
tb = traceback.extract_stack()
for index, tbitem in enumerate(tb):
if pcapkit in tbitem[0]:
break
else:
index = len(tb)
return (index-1) | def stacklevel() | Fetch current stack level. | 4.816233 | 4.532772 | 1.062536 |
if isinstance(key, int):
return LinkType(key)
if key not in LinkType._member_map_:
extend_enum(LinkType, key, default)
return LinkType[key] | def get(key, default=-1) | Backport support for original codes. | 4.335323 | 3.851614 | 1.125586 |
@functools.wraps(func)
def seekcur(self, *args, **kw):
seek_cur = self._file.tell()
self._file.seek(self._seekset, os.SEEK_SET)
return_ = func(self, *args, **kw)
self._file.seek(seek_cur, os.SEEK_SET)
return return_
return seekcur | def seekset(func) | [ClassMethod] Read file from start then set back to original. | 2.28481 | 2.299948 | 0.993418 |
@functools.wraps(func)
def seekcur(file, *args, seekset=os.SEEK_SET, **kw):
# seek_cur = file.tell()
file.seek(seekset, os.SEEK_SET)
return_ = func(file, *args, seekset=seekset, **kw)
# file.seek(seek_cur, os.SEEK_SET)
return return_
return seekcur | def seekset_ng(func) | Read file from start then set back to original. | 2.627379 | 2.623126 | 1.001621 |
@functools.wraps(func)
def behold(self, proto, length, *args, **kwargs):
seek_cur = self._file.tell()
try:
return func(proto, length, *args, **kwargs)
except Exception:
from pcapkit.protocols.raw import Raw
error = traceback.format_exc(limit=1).strip().split(os.linesep)[-1]
# error = traceback.format_exc()
self._file.seek(seek_cur, os.SEEK_SET)
next_ = Raw(io.BytesIO(self._read_fileng(length)), length, error=error)
return next_
return behold | def beholder(func) | [ClassMethod] Behold extraction procedure. | 3.883914 | 3.968122 | 0.978779 |
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