def __init__(self):
PacketListField.__init__(
self,
"tlvs",
[],
_ISIS_GuessTlvClass,
count_from=None,
length_from=lambda pkt: pkt.pdulength - pkt.underlayer.hdrlen,
)
class ISIS_SRCapabilitiesSubTLV(ISIS_GenericSubTlv):
name = "ISIS SR Capabilities TLV"
fields_desc = [
ByteEnumField("type", 2, _isis_subtlv_names_3),
FieldLenField(
"len",
None,
length_of="srgb_ranges",
adjust=lambda pkt, x: x + 1,
fmt="B"),
FlagsField(
"flags", 0, 8,
["res1", "res2", "res3", "res4", "res5", "res6", "V", "I"]),
PacketListField(
"srgb_ranges",
[],
ISIS_SRGBDescriptorEntry,
length_from=lambda pkt: pkt.len - 1)
]
class IOCRBlockReq(Block):
"""IO Connection Relationship block request"""
fields_desc = [
BlockHeader,
XShortEnumField("IOCRType", 1, IOCR_TYPE),
XShortField("IOCRReference", 1),
XShortField("LT", 0x8892),
# IOCRProperties
BitField("IOCRProperties_reserved3", 0, 8),
BitField("IOCRProperties_reserved2", 0, 11),
BitField("IOCRProperties_reserved1", 0, 9),
BitEnumField("IOCRProperties_RTClass", 0, 4,
IOCR_BLOCK_REQ_IOCR_PROPERTIES),
ShortField("DataLength", 40),
XShortField("FrameID", 0x8000),
ShortField("SendClockFactor", 32),
ShortField("ReductionRatio", 32),
ShortField("Phase", 1),
ShortField("Sequence", 0),
XIntField("FrameSendOffset", 0xffffffff),
ShortField("WatchdogFactor", 10),
ShortField("DataHoldFactor", 10),
# IOCRTagHeader
BitEnumField("IOCRTagHeader_IOUserPriority", 6, 3,
{6: "IOCRPriority"}),
BitField("IOCRTagHeader_reserved", 0, 1),
BitField("IOCRTagHeader_IOCRVLANID", 0, 12),
MACField("IOCRMulticastMACAdd", None),
FieldLenField("NumberOfAPIs", None, fmt="H", count_of="APIs"),
PacketListField("APIs", [], IOCRAPI,
count_from=lambda p: p.NumberOfAPIs)
]
# default block_type value
block_type = 0x0102
def get_response(self):
"""Generate the response block of this request.
Careful: it only sets the fields which can be set from the request
"""
res = IOCRBlockRes()
for field in ["IOCRType", "IOCRReference", "FrameID"]:
res.setfieldval(field, self.getfieldval(field))
return res
class OSPF_LLS_Hdr(Packet):
name = "OSPF Link-local signaling"
fields_desc = [
XShortField("chksum", None),
FieldLenField32Bits("len",
None,
length_of="llstlv",
adjust=lambda pkt, x: (x + 4) >> 2), # noqa: E501
PacketListField("llstlv", [],
_LLSGuessPayloadClass,
length_from=lambda x: (x.len << 2) - 4)
] # noqa: E501
def post_build(self, p, pay):
p += pay
if self.chksum is None:
c = checksum(p)
p = struct.pack("!H", c) + p[2:]
return p
class GTPCreatePDPContextRequest(Packet):
# 3GPP TS 29.060 V9.1.0 (2009-12)
name = "GTP Create PDP Context Request"
fields_desc = [
PacketListField(
"IE_list",
[
IE_TEIDI(),
IE_NSAPI(),
IE_GSNAddress(), # noqa: E501
IE_GSNAddress(),
IE_NotImplementedTLV(
ietype=135, length=15, data=RandString(15))
], # noqa: E501
IE_Dispatcher)
]
def hashret(self):
return struct.pack("H", self.seq)
class OpcDaFack(Packet):
# DCE 1.1 RPC - 12.5.3.4
name = "OpcDaFack"
fields_desc = [
ShortField('version', 0),
ByteField('pad', 0),
ShortField('windowSize', 0),
IntField('maxTsdu', 0),
IntField('maxFragSize', 0),
ShortField('serialNum', 0),
FieldLenField('selackLen', 0, count_of='selack', fmt="H"),
PacketListField('selack',
None,
IntField,
count_from=lambda pkt: pkt.selackLen),
]
def extract_padding(self, p):
return b"", p
class OSPF_Router_LSA(OSPF_BaseLSA):
name = "OSPF Router LSA"
fields_desc = [
ShortField("age", 1),
OSPFOptionsField(),
ByteField("type", 1),
IPField("id", "1.1.1.1"),
IPField("adrouter", "1.1.1.1"),
XIntField("seq", 0x80000001),
XShortField("chksum", None),
ShortField("len", None),
FlagsField("flags", 0, 8, ["B", "E", "V", "W", "Nt"]),
ByteField("reserved", 0),
FieldLenField("linkcount", None, count_of="linklist"),
PacketListField("linklist", [],
OSPF_Link,
count_from=lambda pkt: pkt.linkcount,
length_from=lambda pkt: pkt.linkcount * 12)
]
class ExpectedSubmoduleAPI(Packet):
"""Description of an API in the expected submodules blocks"""
name = "API"
fields_desc = [
XIntField("API", 0),
XShortField("SlotNumber", 0),
XIntField("ModuleIdentNumber", 0),
XShortField("ModuleProperties", 0),
FieldLenField("NumberOfSubmodules",
None,
fmt="H",
count_of="Submodules"),
PacketListField("Submodules", [],
ExpectedSubmodule,
count_from=lambda p: p.NumberOfSubmodules),
]
def extract_padding(self, s):
return None, s # No extra payload
class VTPVlanInfo(Packet):
name = "VTP VLAN Info"
fields_desc = [
ByteField("len", None), # FIXME: compute length
ByteEnumField("status", 0, {
0: "active",
1: "suspended"
}),
ByteEnumField("type", 1, _VTP_VLAN_TYPE),
FieldLenField("vlannamelen", None, "vlanname", "B"),
ShortField("vlanid", 1),
ShortField("mtu", 1500),
XIntField("dot10index", None),
StrLenField("vlanname",
"default",
length_from=lambda pkt: 4 *
((pkt.vlannamelen + 3) / 4)), # noqa: E501
ConditionalField(
PacketListField("tlvlist", [],
VTPVlanInfoTlv,
length_from=lambda pkt: pkt.len - 12 -
(4 * ((pkt.vlannamelen + 3) / 4))), # noqa: E501
lambda pkt: pkt.type not in [1, 2])
]
def post_build(self, p, pay):
vlannamelen = 4 * ((len(self.vlanname) + 3) / 4)
if self.len is None:
tmp_len = vlannamelen + 12
p = chr(tmp_len & 0xff) + p[1:]
# Pad vlan name with zeros if vlannamelen > len(vlanname)
tmp_len = vlannamelen - len(self.vlanname)
if tmp_len != 0:
p += b"\x00" * tmp_len
p += pay
return p
def guess_payload_class(self, p):
return conf.padding_layer
class OpcDaBind(Packet):
# DCE 1.1 RPC - 12.6.4.3
name = "OpcDaBind"
fields_desc = [
ShortField('maxXmitFrag', 5840),
ShortField('maxRecvtFrag', 5840),
IntField('assocGroupId', 0),
ByteField('nbContextElement', 1),
ByteField('reserved', 0),
ShortField('reserved2', 0),
PacketListField('contextItem',
None,
ContextElement,
count_from=lambda pkt: pkt.nbContextElement),
PacketField('authentication', None, AuthentificationProtocol),
]
def extract_padding(self, p):
return b"", p
class HCI_LE_Meta_Advertising_Report(Packet):
name = "Advertising Report"
fields_desc = [
ByteEnumField("type", 0, {
0: "conn_und",
4: "scan_rsp"
}),
ByteEnumField("atype", 0, {
0: "public",
1: "random"
}),
LEMACField("addr", None),
FieldLenField("len", None, length_of="data", fmt="B"),
PacketListField("data", [], EIR_Hdr, length_from=lambda pkt: pkt.len),
SignedByteField("rssi", 0)
]
def extract_padding(self, s):
return '', s
class IKEv2_payload_TSr(IKEv2_class):
name = "IKEv2 Traffic Selector - Responder"
overload_fields = {IKEv2: {"next_payload": 45}}
fields_desc = [
ByteEnumField("next_payload", None, IKEv2_payload_type),
ByteField("res", 0),
FieldLenField("length",
None,
"traffic_selector",
"H",
adjust=lambda pkt, x: x + 8), # noqa: E501
ByteField("number_of_TSs", 0),
X3BytesField("res2", 0),
PacketListField("traffic_selector",
None,
TrafficSelector,
length_from=lambda x: x.length - 8,
count_from=lambda x: x.number_of_TSs), # noqa: E501
]
class CreateCqIn(Packet):
fields_desc = [
ShortField('opcode', DevxOps.MLX5_CMD_OP_CREATE_CQ),
ShortField('uid', 0),
ShortField('reserved1', 0),
ShortField('op_mod', 0),
ByteField('reserved2', 0),
BitField('cqn', 0, 24),
StrFixedLenField('reserved3', None, length=4),
PacketField('sw_cqc', SwCqc(), SwCqc),
LongField('e_mtt_pointer_or_cq_umem_offset', 0),
IntField('cq_umem_id', 0),
BitField('cq_umem_valid', 0, 1),
BitField('reserved4', 0, 31),
StrFixedLenField('reserved5', None, length=176),
PacketListField('pas', [SwPas() for x in range(0)],
SwPas,
count_from=lambda pkt: 0),
]
class SAPHDBPart(PacketNoPadded):
"""SAP HANA SQL Command Network Protocol Part
This packet represents a part within a HDB packet.
The part header is comprised of 16 bytes.
"""
name = "SAP HANA SQL Command Network Protocol Part"
fields_desc = [
EnumField("partkind", 0, hdb_partkind_values, fmt="<b"),
LESignedByteField("partattributes", 0),
FieldLenField("argumentcount", None, count_of="buffer", fmt="<h"),
LESignedIntField("bigargumentcount", 0),
FieldLenField("bufferlength", None, length_of="buffer", fmt="<i"),
LESignedIntField("buffersize", 2**17 - 32 - 24),
PadField(PacketListField("buffer", [], next_cls_cb=saphdb_determine_part_class,
count_from=lambda x: x.argumentcount,
length_from=lambda x: x.bufferlength), 8),
]
class NEGOEX_NEGO_MESSAGE(Packet):
OFFSET = 92
show_indent = 0
fields_desc = [
NEGOEX_MESSAGE_HEADER,
XStrFixedLenField("Random", b"", length=32),
LELongField("ProtocolVersion", 0),
LEIntField("AuthSchemeBufferOffset", None),
LEShortField("AuthSchemeCount", None),
LEIntField("ExtensionBufferOffset", None),
LEShortField("ExtensionCount", None),
# Payload
_NTLMPayloadField(
'Payload',
OFFSET, [
FieldListField("AuthScheme", [],
UUIDEnumField("", None, _NEGOEX_AUTH_SCHEMES),
count_from=lambda pkt: pkt.AuthSchemeCount),
PacketListField("Extension", [],
NEGOEX_EXTENSION_VECTOR,
count_from=lambda pkt: pkt.ExtensionCount),
],
length_from=lambda pkt: pkt.cbMessageLength - 92),
# TODO: dissect extensions
]
def post_build(self, pkt, pay):
# type: (bytes, bytes) -> bytes
return _NEGOEX_post_build(self, pkt, self.OFFSET, {
"AuthScheme": 96,
"Extension": 102,
}) + pay
@classmethod
def dispatch_hook(cls, _pkt=None, *args, **kargs):
if _pkt and len(_pkt) >= 12:
MessageType = struct.unpack("<I", _pkt[8:12])[0]
if MessageType in [0, 1]:
return NEGOEX_NEGO_MESSAGE
elif MessageType in [2, 3]:
return NEGOEX_EXCHANGE_MESSAGE
return cls
class NSH(Packet):
"""Network Service Header.
NSH MD-type 1 if there is no ContextHeaders"""
name = "NSH"
fields_desc = [
BitField('Ver', 0, 2),
BitField('OAM', 0, 1),
BitField('Critical', 0, 1),
BitField('Reserved', 0, 6),
BitFieldLenField('Len',
None,
6,
count_of='ContextHeaders',
adjust=lambda pkt, x: 6
if pkt.MDType == 1 else x + 2),
ByteEnumField('MDType', 1, {
1: 'Fixed Length',
2: 'Variable Length'
}),
ByteEnumField('NextProto', 3, {
1: 'IPv4',
2: 'IPv6',
3: 'Ethernet',
4: 'NSH',
5: 'MPLS'
}),
X3BytesField('NSP', 0),
ByteField('NSI', 1),
ConditionalField(XIntField('NPC', 0), lambda pkt: pkt.MDType == 1),
ConditionalField(XIntField('NSC', 0), lambda pkt: pkt.MDType == 1),
ConditionalField(XIntField('SPC', 0), lambda pkt: pkt.MDType == 1),
ConditionalField(XIntField('SSC', 0), lambda pkt: pkt.MDType == 1),
ConditionalField(
PacketListField("ContextHeaders",
None,
NSHTLV,
count_from="Length"), lambda pkt: pkt.MDType == 2)
]
def mysummary(self):
return self.sprintf("NSP: %NSP% - NSI: %NSI%")
class ISIS_RouterCapabilityTlv(ISIS_GenericTlv):
name = "ISIS Router Capability TLV"
fields_desc = [
ByteEnumField("type", 242, _isis_tlv_names),
FieldLenField(
"len",
None,
length_of="subtlvs",
adjust=lambda pkt, x: x + 5,
fmt="B"),
IPField("routerid", "0.0.0.0"),
FlagsField(
"flags", 0, 8,
["S", "D", "res1", "res2", "res3", "res4", "res5", "res6"]),
PacketListField(
"subtlvs",
[],
_ISIS_GuessSubTlvClass_4,
length_from=lambda pkt: pkt.len - 5)
]
class Dot11EltCountry(Dot11Elt):
name = "802.11 Country"
match_subclass = True
fields_desc = [
ByteField("ID", 7),
ByteField("len", None),
StrFixedLenField("country_string", b"\0\0\0", length=3),
PacketListField(
"descriptors",
[],
Dot11EltCountryConstraintTriplet,
length_from=lambda pkt: (
pkt.len - 3 - (pkt.len % 3)
)
),
ConditionalField(
ByteField("pad", 0),
lambda pkt: (len(pkt.descriptors) + 1) % 2
)
]
class Apple_BLE_Frame(Packet, LowEnergyBeaconHelper):
"""
The wrapper for a BLE manufacturer-specific data advertisement from Apple
devices.
Each advertisement is composed of one or multiple submessages.
The length of this field comes from the EIR_Hdr.
"""
name = "Apple BLE broadcast frame"
fields_desc = [
PacketListField("plist", None, Apple_BLE_Submessage)
]
def build_eir(self):
"""Builds a list of EIR messages to wrap this frame."""
return LowEnergyBeaconHelper.base_eir + [
EIR_Hdr() / EIR_Manufacturer_Specific_Data() / self
]
class SAPHDB(Packet):
"""SAP HANA SQL Command Network Protocol packet
This packet is used for the HANA SQL Command Network Protocol.
The message header is comprised of 32 bytes.
"""
name = "SAP HANA SQL Command Network Protocol"
fields_desc = [
LESignedLongField("sessionid", -1),
LESignedIntField("packetcount", 0),
FieldLenField("varpartlength", None, length_of="segments", fmt="<I"),
LEIntField("varpartsize", 2**17 - 32),
FieldLenField("noofsegm", None, count_of="segments", fmt="<h"),
EnumField("packetoptions", 0, hdb_packetoptions_values, fmt="b"),
ByteField("reserved1", None),
LEIntField("compressionvarpartlength", 0),
IntField("reserved2", None),
PacketListField("segments", None, SAPHDBSegment, count_from=lambda x: x.noofsegm),
]
class NBNSQueryResponse(Packet):
name = "NBNS query response"
fields_desc = [
NetBIOSNameField("RR_NAME", "windows"),
ShortEnumField("SUFFIX", 0x4141, _NETBIOS_SUFFIXES),
ByteField("NULL", 0),
ShortEnumField("QUESTION_TYPE", 0x20, _NETBIOS_QRTYPES),
ShortEnumField("QUESTION_CLASS", 1, _NETBIOS_QRCLASS),
IntField("TTL", 0x493e0),
FieldLenField("RDLENGTH", None, length_of="ADDR_ENTRY"),
PacketListField("ADDR_ENTRY", [NBNS_ADD_ENTRY()],
NBNS_ADD_ENTRY,
length_from=lambda pkt: pkt.RDLENGTH)
]
def mysummary(self):
if not self.ADDR_ENTRY:
return "NBNSQueryResponse"
return "NBNSQueryResponse '\\\\%s' is at %s" % (
self.RR_NAME.strip().decode(), self.ADDR_ENTRY[0].NB_ADDRESS)
class OFPTFeaturesReply(_ofp_header):
name = "OFPT_FEATURES_REPLY"
fields_desc = [
ByteEnumField("version", 0x01, ofp_version),
ByteEnumField("type", 6, ofp_type),
ShortField("len", None),
IntField("xid", 0),
LongField("datapath_id", 0),
IntField("n_buffers", 0),
ByteField("n_tables", 1),
X3BytesField("pad", 0),
FlagsField("capabilities", 0, 32, [
"FLOW_STATS", "TABLE_STATS", "PORT_STATS", "STP", "RESERVED",
"IP_REASM", "QUEUE_STATS", "ARP_MATCH_IP"
]),
FlagsField("actions", 0, 32, ofp_action_types_flags),
PacketListField("ports", [],
OFPPhyPort,
length_from=lambda pkt: pkt.len - 32)
]
class NetflowDataflowsetV9(Packet):
name = "Netflow DataFlowSet V9"
fields_desc = [ShortField("templateID", 255),
FieldLenField("length", None, length_of="records",
adjust=lambda pkt, x: x + 4 + (-x % 4)),
PadField(
PacketListField(
"records", [],
NetflowRecordV9,
length_from=lambda pkt: pkt.length - 4
), 4, padwith=b"\x00")]
@classmethod
def dispatch_hook(cls, _pkt=None, *args, **kargs):
if _pkt:
if _pkt[:2] == b"\x00\x01":
return NetflowOptionsFlowsetV9
if _pkt[:2] == b"\x00\x00":
return NetflowFlowsetV9
return cls
class HTTP2Settings(Packet):
name = "HTTP2 %s Frame" % HTTP2_FRAME_TYPES[HTTP2FrameTypes.SETTINGS]
fields_desc = [PacketListField("settings", None, HTTP2Setting)]
def do_dissect(self, s):
pos = 0
setting_len = len(HTTP2Setting())
settings = []
while pos < len(s):
if len(s[pos: pos + setting_len]) == setting_len:
setting = HTTP2Setting(s[pos: pos + setting_len])
# Populate our list of found settings
settings.append(setting)
# Move to the next settings
pos += setting_len
# Setting is too small too parse, pass it for further processing
else:
break
self.fields["settings"] = settings
return s[pos:]
class OSPFv3_Intra_Area_Prefix_LSA(OSPF_BaseLSA):
name = "OSPFv3 Intra Area Prefix LSA"
fields_desc = [
ShortField("age", 1),
ShortEnumField("type", 0x2009, _OSPFv3_LStypes),
IPField("id", "0.0.0.0"),
IPField("adrouter", "1.1.1.1"),
XIntField("seq", 0x80000001),
XShortField("chksum", None),
ShortField("len", None),
FieldLenField("prefixes", None, count_of="prefixlist",
fmt="H"), # noqa: E501
ShortEnumField("reflstype", 0, _OSPFv3_LStypes),
IPField("reflsid", "0.0.0.0"),
IPField("refadrouter", "0.0.0.0"),
PacketListField("prefixlist",
None,
OSPFv3_Prefix_Item,
count_from=lambda pkt: pkt.prefixes)
]
class MKAPotentialPeerListParamSet(MKAParamSet):
"""
Potential Peer List parameter sets (802.1X-2010, section 11.11).
"""
#########################################################################
#
# IEEE 802.1X-2010 standard
# Section 11.11
#########################################################################
#
name = "Potential Peer List Parameter Set"
fields_desc = [
PadField(ByteEnumField("param_set_type", 2, _parameter_set_types),
2,
padwith=b"\x00"),
ShortField("param_set_body_len", 0),
PacketListField("member_id_message_num", [], MKAPeerListTuple)
]
class OSPFv3_Link_LSA(OSPF_BaseLSA):
name = "OSPFv3 Link LSA"
fields_desc = [
ShortField("age", 1),
ShortEnumField("type", 0x0008, _OSPFv3_LStypes),
IPField("id", "0.0.0.0"),
IPField("adrouter", "1.1.1.1"),
XIntField("seq", 0x80000001),
XShortField("chksum", None),
ShortField("len", None),
ByteField("prio", 1),
OSPFv3OptionsField(),
IP6Field("lladdr", "fe80::"),
FieldLenField("prefixes", None, count_of="prefixlist",
fmt="I"), # noqa: E501
PacketListField("prefixlist",
None,
OSPFv3_Prefix_Item,
count_from=lambda pkt: pkt.prefixes)
]
class SMB2_Negociate_Protocol_Response_Header(Packet):
name = "SMB2 Negociate Protocol Response Header"
fields_desc = [
XLEShortField("StructureSize", 0),
FlagsField("SecurityMode", 0, 16, {
0x7: "Signing Required",
0x8: "Signing Enabled",
}),
LEShortEnumField("Dialect", 0x0, SMB_DIALECTS),
FieldLenField(
"NegociateCount", 0x0,
fmt="<H",
count_of="NegociateContexts"
),
UUIDField("ServerGUID", 0x0, uuid_fmt=UUIDField.FORMAT_LE),
# Capabilities
FlagsField("Capabilities", 0, 32, SMB2_CAPABILITIES),
LEIntField("MaxTransactionSize", 0),
LEIntField("MaxReadSize", 0),
LEIntField("MaxWriteSize", 0),
# TODO FIXME
XLongField("SystemTime", 0),
XLongField("ServerStartTime", 0),
XLEShortField("SecurityBufferOffset", 0),
FieldLenField(
"SecurityBufferLength", 0,
fmt="<H",
length_of="SecurityBuffer"
),
XLEIntField("NegociateContextOffset", 0),
# TODO FIXME
XStrLenField(
"SecurityBuffer", None,
length_from=lambda pkt: pkt.SecurityBufferLength
),
PacketListField(
"NegociateContexts", [],
SMB2_Negociate_Context,
count_from=lambda pkt: pkt.NegociateCount
),
]
class Radius(Packet):
"""
Implements a RADIUS packet (RFC 2865).
"""
name = "RADIUS"
fields_desc = [
ByteEnumField("code", 1, _packet_codes),
ByteField("id", 0),
FieldLenField(
"len",
None,
"attributes",
"H",
adjust=lambda pkt, x: len(pkt.attributes) + 20
),
XStrFixedLenField("authenticator", "", 16),
PacketListField(
"attributes",
[],
RadiusAttribute,
length_from=lambda pkt: pkt.len - 20
)
]
def compute_authenticator(self, packed_request_auth, shared_secret):
"""
Computes the authenticator field (RFC 2865 - Section 3)
"""
data = prepare_packed_data(self, packed_request_auth)
radius_mac = hashlib.md5(data + shared_secret)
return radius_mac.digest()
def post_build(self, p, pay):
p += pay
length = self.len
if length is None:
length = len(p)
p = p[:2] + struct.pack("!H", length) + p[4:]
return p
class MQTTPublish(Packet):
name = "MQTT publish"
fields_desc = [
FieldLenField("length", None, length_of="topic"),
StrLenField("topic", "", length_from=lambda pkt: pkt.length),
ConditionalField(
ShortField("msgid", None), lambda pkt:
(pkt.underlayer.QOS == 1 or pkt.underlayer.QOS == 2)),
#PUBLISH PROPERTIES
FieldLenField("proplen", None, fmt='B', length_of="properties"),
ConditionalField(
PacketListField("properties", [],
pkt_cls=MQTTProperty,
length_from=lambda pkt: pkt.proplen),
lambda pkt: pkt.proplen != 0),
StrLenField("value",
"",
length_from=lambda pkt:
(pkt.underlayer.len - pkt.length - 2)),
]
class NDRData(Packet):
"""Base NDRData to centralize some fields. It can't be instantiated"""
fields_desc = [
EndiannessField(
FieldLenField("args_length", None, fmt="I", length_of="blocks"),
endianess_from=dce_rpc_endianess),
EndiannessField(
FieldLenField("max_count", None, fmt="I", length_of="blocks"),
endianess_from=dce_rpc_endianess),
EndiannessField(
IntField("offset", 0),
endianess_from=dce_rpc_endianess),
EndiannessField(
FieldLenField("actual_count", None, fmt="I", length_of="blocks"),
endianess_from=dce_rpc_endianess),
PacketListField("blocks", [], _guess_block_class,
length_from=lambda p: p.args_length)
]
def __new__(cls, name, bases, dct):
raise NotImplementedError()
def __init__(self, name, default, cls, spkt_len=None):
"""We need that spkt_len is specified to know how to chop"""
assert spkt_len is not None
PacketListField.__init__(self, name, default, cls)
self.spkt_len = spkt_len
def __init__(self, name, default, cls, count_from=None, length_from=None, stop=None):
PacketListField.__init__(self, name, default, cls, count_from=count_from, length_from=length_from)
self.stop = stop
def __init__(self, name, default, count_from=None, length_from=None):
PacketListField.__init__(self, name, default, conf.raw_layer, count_from=count_from, length_from=length_from) # noqa: E501
