diff --git a/scapy/contrib/gtp.py b/scapy/contrib/gtp.py
index e7febc233dc517ced65ed9882eb712d682856aee..bf2a64c7965fdc3dc106199549acb38c20b87699 100644
--- a/scapy/contrib/gtp.py
+++ b/scapy/contrib/gtp.py
@@ -1,7 +1,8 @@
#! /usr/bin/env python
-## Copyright (C) 2014 Guillaume Valadon <guillaume.valadon@ssi.gouv.fr>
-## 2014 Alexis Sultan <alexis.sultan@sfr.com>
+## Copyright (C) 2017 Alexis Sultan <alexis.sultan@sfr.com>
+## 2017 Alessio Deiana <adeiana@gmail.com>
+## 2014 Guillaume Valadon <guillaume.valadon@ssi.gouv.fr>
## 2012 ffranz <ffranz@iniqua.com>
##
## This program is published under a GPLv2 license
@@ -15,13 +16,24 @@ import logging
from scapy.packet import *
from scapy.fields import *
from scapy.layers.inet import IP, UDP
+from scapy.layers.inet6 import IP6Field
# GTP Data types
+RATType = {
+ 1: "UTRAN",
+ 2: "GETRAN",
+ 3: "WLAN",
+ 4: "GAN",
+ 5: "HSPA"
+}
+
GTPmessageType = { 1: "echo_request",
2: "echo_response",
16: "create_pdp_context_req",
17: "create_pdp_context_res",
+ 18: "update_pdp_context_req",
+ 19: "update_pdp_context_resp",
20: "delete_pdp_context_req",
21: "delete_pdp_context_res",
26: "error_indication",
@@ -33,6 +45,7 @@ IEType = { 1: "Cause",
3: "RAI",
4: "TLLI",
5: "P_TMSI",
+ 8: "IE_ReorderingRequired",
14: "Recovery",
15: "SelectionMode",
16: "TEIDI",
@@ -42,6 +55,7 @@ IEType = { 1: "Cause",
26: "ChargingChrt",
27: "TraceReference",
28: "TraceType",
+ 127: "ChargingId",
128: "EndUserAddress",
131: "AccessPointName",
132: "ProtocolConfigurationOptions",
@@ -49,10 +63,15 @@ IEType = { 1: "Cause",
134: "MSInternationalNumber",
135: "QoS",
148: "CommonFlags",
+ 149: "APNRestriction",
151: "RatType",
152: "UserLocationInformation",
153: "MSTimeZone",
- 154: "IMEI" }
+ 154: "IMEI",
+ 181: "MSInfoChangeReportingAction",
+ 184: "BearerControlMode",
+ 191: "EvolvedAllocationRetentionPriority",
+ 255: "PrivateExtention"}
CauseValues = { 0: "Request IMSI",
1: "Request IMEI",
@@ -106,27 +125,32 @@ Selection_Mode = { 11111100: "MS or APN",
11111110: "NET",
11111111: "FutureUse" }
-TeardownInd_value = { 254: "False",
- 255: "True" }
-
+TrueFalse_value = {254: "False",
+ 255: "True"}
+
+
class TBCDByteField(StrFixedLenField):
def i2h(self, pkt, val):
- ret = []
- for v in val:
- byte = ord(v)
- left = byte >> 4
- right = byte & 0xF
- if left == 0xF:
- ret += [ "%d" % right ]
- else:
- ret += [ "%d" % right, "%d" % left ]
- return "".join(ret)
+ return val
def i2repr(self, pkt, x):
return repr(self.i2h(pkt,x))
+ def m2i(self, pkt, val):
+ ret = []
+ for v in val:
+ byte = ord(v)
+ left = byte >> 4
+ right = byte & 0xf
+ if left == 0xf:
+ ret += [TBCD_TO_ASCII[right]]
+ else:
+ ret += [TBCD_TO_ASCII[right], TBCD_TO_ASCII[left]]
+ return "".join(ret)
+
def i2m(self, pkt, val):
+ val = str(val)
ret_string = ""
for i in xrange(0, len(val), 2):
tmp = val[i:i+2]
@@ -136,6 +160,10 @@ class TBCDByteField(StrFixedLenField):
ret_string += chr(int("F" + tmp[0], 16))
return ret_string
+
+TBCD_TO_ASCII = "0123456789*#abc"
+
+
class GTPHeader(Packet):
# 3GPP TS 29.060 V9.1.0 (2009-12)
name = "GTP Header"
@@ -164,6 +192,7 @@ class GTPHeader(Packet):
self.version == other.version and
self.payload.answers(other.payload))
+
class GTPEchoRequest(Packet):
# 3GPP TS 29.060 V9.1.0 (2009-12)
name = "GTP Echo Request"
@@ -174,79 +203,83 @@ class GTPEchoRequest(Packet):
def hashret(self):
return struct.pack("H", self.seq)
-class IE_Cause(Packet):
- name = "Cause"
- fields_desc = [ ByteEnumField("ietype", 1, IEType),
- BitField("Response", None, 1),
- BitField("Rejection", None, 1),
- BitEnumField("CauseValue", None, 6, CauseValues) ]
+
+class IE_Base(Packet):
+
def extract_padding(self, pkt):
- return "",pkt
+ return "", pkt
+
-class IE_IMSI(Packet):
+class IE_Cause(IE_Base):
+ name = "Cause"
+ fields_desc = [ByteEnumField("ietype", 1, IEType),
+ ByteEnumField("CauseValue", None, CauseValues)]
+
+
+class IE_IMSI(IE_Base):
name = "IMSI - Subscriber identity of the MS"
- fields_desc = [ ByteEnumField("ietype", 2, IEType),
- TBCDByteField("imsi", str(RandNum(0, 999999999999999)), 8) ]
- def extract_padding(self, pkt):
- return "",pkt
+ fields_desc = [ByteEnumField("ietype", 2, IEType),
+ TBCDByteField("imsi", str(RandNum(0, 999999999999999)), 8)]
+
-class IE_Routing(Packet):
+class IE_Routing(IE_Base):
name = "Routing Area Identity"
fields_desc = [ ByteEnumField("ietype", 3, IEType),
TBCDByteField("MCC", "", 2),
- # MNC: if the third digit of MCC is 0xf, then the length of MNC is 1 byte
+ # MNC: if the third digit of MCC is 0xf,
+ # then the length of MNC is 1 byte
TBCDByteField("MNC", "", 1),
ShortField("LAC", None),
ByteField("RAC", None) ]
- def extract_padding(self, pkt):
- return "",pkt
-class IE_Recovery(Packet):
+
+class IE_ReorderingRequired(IE_Base):
+ name = "Recovery"
+ fields_desc = [ByteEnumField("ietype", 8, IEType),
+ ByteEnumField("reordering_required", 254, TrueFalse_value)]
+
+
+class IE_Recovery(IE_Base):
name = "Recovery"
fields_desc = [ ByteEnumField("ietype", 14, IEType),
- ByteField("res-counter", 24) ]
- def extract_padding(self, pkt):
- return "",pkt
+ ByteField("restart_counter", 24) ]
+
-class IE_SelectionMode(Packet):
+class IE_SelectionMode(IE_Base):
# Indicates the origin of the APN in the message
name = "Selection Mode"
fields_desc = [ ByteEnumField("ietype", 15, IEType),
- BitEnumField("SelectionMode", "MS or APN", 8, Selection_Mode) ]
- def extract_padding(self, pkt):
- return "",pkt
+ BitEnumField("SelectionMode", "MS or APN",
+ 8, Selection_Mode) ]
+
-class IE_TEIDI(Packet):
+class IE_TEIDI(IE_Base):
name = "Tunnel Endpoint Identifier Data"
fields_desc = [ ByteEnumField("ietype", 16, IEType),
XIntField("TEIDI", RandInt()) ]
- def extract_padding(self, pkt):
- return "",pkt
-class IE_TEICP(Packet):
+
+class IE_TEICP(IE_Base):
name = "Tunnel Endpoint Identifier Control Plane"
fields_desc = [ ByteEnumField("ietype", 17, IEType),
XIntField("TEICI", RandInt())]
- def extract_padding(self, pkt):
- return "",pkt
-class IE_Teardown(Packet):
+
+class IE_Teardown(IE_Base):
name = "Teardown Indicator"
fields_desc = [ ByteEnumField("ietype", 19, IEType),
- ByteEnumField("indicator", "True", TeardownInd_value) ]
- def extract_padding(self, pkt):
- return "",pkt
+ ByteEnumField("indicator", "True", TrueFalse_value) ]
+
-class IE_NSAPI(Packet):
+class IE_NSAPI(IE_Base):
# Identifies a PDP context in a mobility management context specified by TEICP
name = "NSAPI"
fields_desc = [ ByteEnumField("ietype", 20, IEType),
XBitField("sparebits", 0x0000, 4),
XBitField("NSAPI", RandNum(0, 15), 4) ]
- def extract_padding(self, pkt):
- return "",pkt
-class IE_ChargingCharacteristics(Packet):
+
+class IE_ChargingCharacteristics(IE_Base):
# Way of informing both the SGSN and GGSN of the rules for
name = "Charging Characteristics"
fields_desc = [ ByteEnumField("ietype", 26, IEType),
@@ -263,26 +296,28 @@ class IE_ChargingCharacteristics(Packet):
XBitField("flat_rate_charging", None, 1),
XBitField("hot_billing_charging", None, 1),
XBitField("Ch_ChReserved", 0, 8) ]
- def extract_padding(self, pkt):
- return "",pkt
-class IE_TraceReference(Packet):
+class IE_TraceReference(IE_Base):
# Identifies a record or a collection of records for a particular trace.
name = "Trace Reference"
fields_desc = [ ByteEnumField("ietype", 27, IEType),
XBitField("Trace_reference", None, 16) ]
- def extract_padding(self, pkt):
- return "",pkt
-class IE_TraceType(Packet):
+
+class IE_TraceType(IE_Base):
# Indicates the type of the trace
name = "Trace Type"
fields_desc = [ ByteEnumField("ietype", 28, IEType),
XBitField("Trace_type", None, 16) ]
- def extract_padding(self, pkt):
- return "",pkt
-class IE_EndUserAddress(Packet):
+
+class IE_ChargingId(IE_Base):
+ name = "Charging ID"
+ fields_desc = [ByteEnumField("ietype", 127, IEType),
+ XIntField("Charging_id", RandInt())]
+
+
+class IE_EndUserAddress(IE_Base):
# Supply protocol specific information of the external packet
name = "End User Addresss"
fields_desc = [ ByteEnumField("ietype", 128, IEType),
@@ -294,12 +329,13 @@ class IE_EndUserAddress(Packet):
# 5 PDP Type Number
# - Response
# 6-n PDP Address
- BitField("EndUserAddressLength", 2, 16),
- BitField("EndUserAddress", 1111, 4),
+ ShortField("length", 2),
+ BitField("SPARE", 15, 4),
BitField("PDPTypeOrganization", 1, 4),
- XByteField("PDPTypeNumber", None) ]
- def extract_padding(self, pkt):
- return "",pkt
+ XByteField("PDPTypeNumber", None),
+ ConditionalField(IPField("PDPAddress", RandIP()),
+ lambda pkt: pkt.length > 2)]
+
class APNStrLenField(StrLenField):
# Inspired by DNSStrField
@@ -321,46 +357,183 @@ class APNStrLenField(StrLenField):
return s
-class IE_AccessPointName(Packet):
+class IE_AccessPointName(IE_Base):
# Sent by SGSN or by GGSN as defined in 3GPP TS 23.060
name = "Access Point Name"
fields_desc = [ ByteEnumField("ietype", 131, IEType),
ShortField("length", None),
APNStrLenField("APN", "nternet", length_from=lambda x: x.length) ]
- def extract_padding(self, pkt):
- return "",pkt
+
def post_build(self, p, pay):
if self.length is None:
l = len(p)-3
p = p[:2] + struct.pack("!B", l)+ p[3:]
return p
-class IE_ProtocolConfigurationOptions(Packet):
+
+class IE_ProtocolConfigurationOptions(IE_Base):
name = "Protocol Configuration Options"
fields_desc = [ ByteEnumField("ietype", 132, IEType),
ShortField("length", 4),
- StrLenField("Protocol Configuration", "", length_from=lambda x: x.length) ]
- def extract_padding(self, pkt):
- return "",pkt
+ StrLenField("Protocol_Configuration", "",
+ length_from=lambda x: x.length) ]
+
-class IE_GSNAddress(Packet):
+class IE_GSNAddress(IE_Base):
name = "GSN Address"
fields_desc = [ ByteEnumField("ietype", 133, IEType),
ShortField("length", 4),
IPField("address", RandIP()) ]
- def extract_padding(self, pkt):
- return "",pkt
-class IE_MSInternationalNumber(Packet):
+
+class IE_MSInternationalNumber(IE_Base):
name = "MS International Number"
fields_desc = [ ByteEnumField("ietype", 134, IEType),
ShortField("length", None),
FlagsField("flags", 0x91, 8, ["Extension","","","International Number","","","","ISDN numbering"]),
TBCDByteField("digits", "33607080910", length_from=lambda x: x.length-1) ]
- def extract_padding(self, pkt):
- return "",pkt
-class IE_UserLocationInformation(Packet):
+
+class QoS_Profile(IE_Base):
+ name = "QoS profile"
+ fields_desc = [ByteField("qos_ei", 0),
+ ByteField("length", None),
+ XBitField("spare", 0x00, 2),
+ XBitField("delay_class", 0x000, 3),
+ XBitField("reliability_class", 0x000, 3),
+ XBitField("peak_troughput", 0x0000, 4),
+ BitField("spare", 0, 1),
+ XBitField("precedence_class", 0x000, 3),
+ XBitField("spare", 0x000, 3),
+ XBitField("mean_troughput", 0x00000, 5),
+ XBitField("traffic_class", 0x000, 3),
+ XBitField("delivery_order", 0x00, 2),
+ XBitField("delivery_of_err_sdu", 0x000, 3),
+ ByteField("max_sdu_size", None),
+ ByteField("max_bitrate_up", None),
+ ByteField("max_bitrate_down", None),
+ XBitField("redidual_ber", 0x0000, 4),
+ XBitField("sdu_err_ratio", 0x0000, 4),
+ XBitField("transfer_delay", 0x00000, 5),
+ XBitField("traffic_handling_prio", 0x000, 3),
+ ByteField("guaranteed_bit_rate_up", None),
+ ByteField("guaranteed_bit_rate_down", None)]
+
+
+class IE_QoS(IE_Base):
+ name = "QoS"
+ fields_desc = [ByteEnumField("ietype", 135, IEType),
+ ShortField("length", None),
+ ByteField("allocation_retention_prioiry", 1),
+
+ ConditionalField(XBitField("spare", 0x00, 2),
+ lambda pkt: pkt.length > 1),
+ ConditionalField(XBitField("delay_class", 0x000, 3),
+ lambda pkt: pkt.length > 1),
+ ConditionalField(XBitField("reliability_class", 0x000, 3),
+ lambda pkt: pkt.length > 1),
+
+ ConditionalField(XBitField("peak_troughput", 0x0000, 4),
+ lambda pkt: pkt.length > 2),
+ ConditionalField(BitField("spare", 0, 1),
+ lambda pkt: pkt.length > 2),
+ ConditionalField(XBitField("precedence_class", 0x000, 3),
+ lambda pkt: pkt.length > 2),
+
+ ConditionalField(XBitField("spare", 0x000, 3),
+ lambda pkt: pkt.length > 3),
+ ConditionalField(XBitField("mean_troughput", 0x00000, 5),
+ lambda pkt: pkt.length > 3),
+
+ ConditionalField(XBitField("traffic_class", 0x000, 3),
+ lambda pkt: pkt.length > 4),
+ ConditionalField(XBitField("delivery_order", 0x00, 2),
+ lambda pkt: pkt.length > 4),
+ ConditionalField(XBitField("delivery_of_err_sdu", 0x000, 3),
+ lambda pkt: pkt.length > 4),
+
+ ConditionalField(ByteField("max_sdu_size", None),
+ lambda pkt: pkt.length > 5),
+ ConditionalField(ByteField("max_bitrate_up", None),
+ lambda pkt: pkt.length > 6),
+ ConditionalField(ByteField("max_bitrate_down", None),
+ lambda pkt: pkt.length > 7),
+
+ ConditionalField(XBitField("redidual_ber", 0x0000, 4),
+ lambda pkt: pkt.length > 8),
+ ConditionalField(XBitField("sdu_err_ratio", 0x0000, 4),
+ lambda pkt: pkt.length > 8),
+ ConditionalField(XBitField("transfer_delay", 0x00000, 6),
+ lambda pkt: pkt.length > 9),
+ ConditionalField(XBitField("traffic_handling_prio",
+ 0x000,
+ 2),
+ lambda pkt: pkt.length > 9),
+
+ ConditionalField(ByteField("guaranteed_bit_rate_up", None),
+ lambda pkt: pkt.length > 10),
+ ConditionalField(ByteField("guaranteed_bit_rate_down",
+ None),
+ lambda pkt: pkt.length > 11),
+
+ ConditionalField(XBitField("spare", 0x000, 3),
+ lambda pkt: pkt.length > 12),
+ ConditionalField(BitField("signaling_indication", 0, 1),
+ lambda pkt: pkt.length > 12),
+ ConditionalField(XBitField("source_stats_desc", 0x0000, 4),
+ lambda pkt: pkt.length > 12),
+
+ ConditionalField(ByteField("max_bitrate_down_ext", None),
+ lambda pkt: pkt.length > 13),
+ ConditionalField(ByteField("guaranteed_bitrate_down_ext",
+ None),
+ lambda pkt: pkt.length > 14),
+ ConditionalField(ByteField("max_bitrate_up_ext", None),
+ lambda pkt: pkt.length > 15),
+ ConditionalField(ByteField("guaranteed_bitrate_up_ext",
+ None),
+ lambda pkt: pkt.length > 16),
+ ConditionalField(ByteField("max_bitrate_down_ext2", None),
+ lambda pkt: pkt.length > 17),
+ ConditionalField(ByteField("guaranteed_bitrate_down_ext2",
+ None),
+ lambda pkt: pkt.length > 18),
+ ConditionalField(ByteField("max_bitrate_up_ext2", None),
+ lambda pkt: pkt.length > 19),
+ ConditionalField(ByteField("guaranteed_bitrate_up_ext2",
+ None),
+ lambda pkt: pkt.length > 20)]
+
+
+class IE_CommonFlags(IE_Base):
+ name = "Common Flags"
+ fields_desc = [ByteEnumField("ietype", 148, IEType),
+ ShortField("length", None),
+ BitField("dual_addr_bearer_fl", 0, 1),
+ BitField("upgrade_qos_supported", 0, 1),
+ BitField("nrsn", 0, 1),
+ BitField("no_qos_nego", 0, 1),
+ BitField("mbms_cnting_info", 0, 1),
+ BitField("ran_procedure_ready", 0, 1),
+ BitField("mbms_service_type", 0, 1),
+ BitField("prohibit_payload_compression", 0, 1)]
+
+
+class IE_APNRestriction(IE_Base):
+ name = "APN Restriction"
+ fields_desc = [ByteEnumField("ietype", 149, IEType),
+ ShortField("length", 1),
+ ByteField("restriction_type_value", 0)]
+
+
+class IE_RATType(IE_Base):
+ name = "Rat Type"
+ fields_desc = [ByteEnumField("ietype", 151, IEType),
+ ShortField("length", 1),
+ ByteEnumField("RAT_Type", None, RATType)]
+
+
+class IE_UserLocationInformation(IE_Base):
name = "User Location Information"
fields_desc = [ ByteEnumField("ietype", 152, IEType),
ShortField("length", None),
@@ -371,16 +544,87 @@ class IE_UserLocationInformation(Packet):
TBCDByteField("MNC", "", 1),
ShortField("LAC", None),
ShortField("SAC", None) ]
- def extract_padding(self, pkt):
- return "",pkt
-class IE_IMEI(Packet):
+
+class IE_MSTimeZone(IE_Base):
+ name = "MS Time Zone"
+ fields_desc = [ByteEnumField("ietype", 153, IEType),
+ ShortField("length", None),
+ ByteField("timezone", 0),
+ BitField("Spare", 0, 1),
+ BitField("Spare", 0, 1),
+ BitField("Spare", 0, 1),
+ BitField("Spare", 0, 1),
+ BitField("Spare", 0, 1),
+ BitField("Spare", 0, 1),
+ XBitField("daylight_saving_time", 0x00, 2)]
+
+
+class IE_IMEI(IE_Base):
name = "IMEI"
fields_desc = [ ByteEnumField("ietype", 154, IEType),
ShortField("length", None),
TBCDByteField("IMEI", "", length_from=lambda x: x.length) ]
- def extract_padding(self, pkt):
- return "",pkt
+
+
+class IE_MSInfoChangeReportingAction(IE_Base):
+ name = "MS Info Change Reporting Action"
+ fields_desc = [ByteEnumField("ietype", 181, IEType),
+ ShortField("length", 1),
+ ByteField("Action", 0)]
+
+
+class IE_DirectTunnelFlags(IE_Base):
+ name = "Direct Tunnel Flags"
+ fields_desc = [ByteEnumField("ietype", 182, IEType),
+ ShortField("length", 1),
+ BitField("Spare", 0, 1),
+ BitField("Spare", 0, 1),
+ BitField("Spare", 0, 1),
+ BitField("Spare", 0, 1),
+ BitField("Spare", 0, 1),
+ BitField("EI", 0, 1),
+ BitField("GCSI", 0, 1),
+ BitField("DTI", 0, 1)]
+
+
+class IE_BearerControlMode(IE_Base):
+ name = "Bearer Control Mode"
+ fields_desc = [ByteEnumField("ietype", 184, IEType),
+ ShortField("length", 1),
+ ByteField("bearer_control_mode", 0)]
+
+
+class IE_EvolvedAllocationRetentionPriority(IE_Base):
+ name = "Evolved Allocation/Retention Priority"
+ fields_desc = [ByteEnumField("ietype", 191, IEType),
+ ShortField("length", 1),
+ BitField("Spare", 0, 1),
+ BitField("PCI", 0, 1),
+ XBitField("PL", 0x0000, 4),
+ BitField("Spare", 0, 1),
+ BitField("PVI", 0, 1)]
+
+
+class IE_CharginGatewayAddress(IE_Base):
+ name = "Chargin Gateway Address"
+ fields_desc = [ByteEnumField("ietype", 251, IEType),
+ ShortField("length", 4),
+ ConditionalField(IPField("ipv4_address", "127.0.0.1"),
+ lambda
+ pkt: pkt.length == 4),
+ ConditionalField(IP6Field("ipv6_address", "::1"), lambda
+ pkt: pkt.length == 16)]
+
+
+class IE_PrivateExtension(IE_Base):
+ name = "Private Extension"
+ fields_desc = [ByteEnumField("ietype", 255, IEType),
+ ShortField("length", 1),
+ ByteField("extension identifier", 0),
+ StrLenField("extention_value", "",
+ length_from=lambda x: x.length)]
+
class IE_NotImplementedTLV(Packet):
name = "IE not implemented"
@@ -390,11 +634,40 @@ class IE_NotImplementedTLV(Packet):
def extract_padding(self, pkt):
return "",pkt
-ietypecls = { 1: IE_Cause, 2: IE_IMSI, 3: IE_Routing, 14: IE_Recovery, 15: IE_SelectionMode, 16: IE_TEIDI,
- 17: IE_TEICP, 19: IE_Teardown, 20: IE_NSAPI, 26: IE_ChargingCharacteristics,
- 27: IE_TraceReference, 28: IE_TraceType,
- 128: IE_EndUserAddress, 131: IE_AccessPointName, 132: IE_ProtocolConfigurationOptions,
- 133: IE_GSNAddress, 134: IE_MSInternationalNumber, 152: IE_UserLocationInformation, 154: IE_IMEI }
+
+ietypecls = {1: IE_Cause,
+ 2: IE_IMSI,
+ 3: IE_Routing,
+ 8: IE_ReorderingRequired,
+ 14: IE_Recovery,
+ 15: IE_SelectionMode,
+ 16: IE_TEIDI,
+ 17: IE_TEICP,
+ 19: IE_Teardown,
+ 20: IE_NSAPI,
+ 26: IE_ChargingCharacteristics,
+ 27: IE_TraceReference,
+ 28: IE_TraceType,
+ 127: IE_ChargingId,
+ 128: IE_EndUserAddress,
+ 131: IE_AccessPointName,
+ 132: IE_ProtocolConfigurationOptions,
+ 133: IE_GSNAddress,
+ 134: IE_MSInternationalNumber,
+ 135: IE_QoS,
+ 148: IE_CommonFlags,
+ 149: IE_APNRestriction,
+ 151: IE_RATType,
+ 152: IE_UserLocationInformation,
+ 153: IE_MSTimeZone,
+ 154: IE_IMEI,
+ 181: IE_MSInfoChangeReportingAction,
+ 182: IE_DirectTunnelFlags,
+ 184: IE_BearerControlMode,
+ 191: IE_EvolvedAllocationRetentionPriority,
+ 251: IE_CharginGatewayAddress,
+ 255: IE_PrivateExtension}
+
def IE_Dispatcher(s):
"""Choose the correct Information Element class."""
@@ -454,6 +727,51 @@ class GTPCreatePDPContextResponse(Packet):
def answers(self, other):
return self.seq == other.seq
+
+class GTPUpdatePDPContextRequest(Packet):
+ # 3GPP TS 29.060 V9.1.0 (2009-12)
+ name = "GTP Update PDP Context Request"
+ fields_desc = [ShortField("seq", RandShort()),
+ ByteField("npdu", 0),
+ ByteField("next_ex", 0),
+ PacketListField("IE_list", [
+ IE_Cause(),
+ IE_Recovery(),
+ IE_TEIDI(),
+ IE_TEICP(),
+ IE_ChargingId(),
+ IE_ProtocolConfigurationOptions(),
+ IE_GSNAddress(),
+ IE_GSNAddress(),
+ IE_GSNAddress(),
+ IE_GSNAddress(),
+ IE_QoS(),
+ IE_CharginGatewayAddress(),
+ IE_CharginGatewayAddress(),
+ IE_CommonFlags(),
+ IE_APNRestriction(),
+ IE_BearerControlMode(),
+ IE_MSInfoChangeReportingAction(),
+ IE_EvolvedAllocationRetentionPriority(),
+ IE_PrivateExtension()],
+ IE_Dispatcher)]
+
+ def hashret(self):
+ return struct.pack("H", self.seq)
+
+
+class GTPUpdatePDPContextResponse(Packet):
+ # 3GPP TS 29.060 V9.1.0 (2009-12)
+ name = "GTP Update PDP Context Response"
+ fields_desc = [ShortField("seq", RandShort()),
+ ByteField("npdu", 0),
+ ByteField("next_ex", 0),
+ PacketListField("IE_list", None, IE_Dispatcher)]
+
+ def hashret(self):
+ return struct.pack("H", self.seq)
+
+
class GTPErrorIndication(Packet):
# 3GPP TS 29.060 V9.1.0 (2009-12)
name = "GTP Error Indication"
@@ -527,13 +845,15 @@ class GTPmorethan1500(Packet):
# Bind GTP-C
bind_layers(UDP, GTPHeader, dport = 2123)
bind_layers(UDP, GTPHeader, sport = 2123)
-bind_layers(GTPHeader, GTPEchoRequest, gtp_type = 1)
-bind_layers(GTPHeader, GTPEchoResponse, gtp_type = 2)
-bind_layers(GTPHeader, GTPCreatePDPContextRequest, gtp_type = 16)
-bind_layers(GTPHeader, GTPCreatePDPContextResponse, gtp_type = 17)
-bind_layers(GTPHeader, GTPDeletePDPContextRequest, gtp_type = 20)
-bind_layers(GTPHeader, GTPDeletePDPContextResponse, gtp_type = 21)
-bind_layers(GTPHeader, GTPPDUNotificationRequest, gtp_type = 27)
+bind_layers(GTPHeader, GTPEchoRequest, gtp_type=1)
+bind_layers(GTPHeader, GTPEchoResponse, gtp_type=2)
+bind_layers(GTPHeader, GTPCreatePDPContextRequest, gtp_type=16)
+bind_layers(GTPHeader, GTPCreatePDPContextResponse, gtp_type=17)
+bind_layers(GTPHeader, GTPUpdatePDPContextRequest, gtp_type=18)
+bind_layers(GTPHeader, GTPUpdatePDPContextResponse, gtp_type=19)
+bind_layers(GTPHeader, GTPDeletePDPContextRequest, gtp_type=20)
+bind_layers(GTPHeader, GTPDeletePDPContextResponse, gtp_type=21)
+bind_layers(GTPHeader, GTPPDUNotificationRequest, gtp_type=27)
# Bind GTP-U
bind_layers(UDP, GTP_U_Header, dport = 2152)
diff --git a/scapy/contrib/gtp.uts b/scapy/contrib/gtp.uts
index 007ad764357ab2d7288cf5beeb56af739a7b2d3e..9d4da9df4698d895babc1ad15555feb7bc1e679c 100644
--- a/scapy/contrib/gtp.uts
+++ b/scapy/contrib/gtp.uts
@@ -12,3 +12,278 @@ gtp.dport == 2123 and gtp.teid == 2807 and len(gtp.IE_list) == 5
= GTPCreatePDPContextRequest(), basic dissection
random.seed(2807)
str(gtp) == "E\x00\x00O\x00\x01\x00\x00@\x11|\x9b\x7f\x00\x00\x01\x7f\x00\x00\x01\x08K\x08K\x00;\xb9{2\x10\x00+\x00\x00\n\xf7\x8d\x9e\x00\x00\x10\xa6\xb2\xdc.\x14\t\x85\x00\x04\x83~:N\x85\x00\x04\xe0^\x96\xe7\x87\x00\x0fRmhqmG3QvzvsT3G"
+
+= GTPV1UpdatePDPContextRequest(), dissect
+h = "3333333333332222222222228100a38408004588006800000000fd1134820a2a00010a2a00024aa5084b005408bb32120044ed99aea9386f0000100000530514058500040a2a00018500040a2a000187000c0213921f739680fe74f2ffff94000130970001019800080112f41004d204d29900024000b6000101"
+gtp = Ether(h.decode('hex'))
+gtp.gtp_type == 18
+
+= GTPV1UpdatePDPContextResponse(), dissect
+h = "3333333333332222222222228100838408004588005400000000fd1182850a2a00010a2a0002084b084b00406b46321300305843da17f07300000180100000032c7f4a0f58108500040a2a00018500040a2a000187000f0213921f7396d1fe7482ffff004a00f7a71e0a"
+gtp = Ether(h.decode('hex'))
+gtp.gtp_type == 19
+
+= IE_Cause(), dissect
+h = "3333333333332222222222228100838408004588005400000000fd1182850a2a00010a2a0002084b084b00406b4632130030f15422be19ed0000018010000046a97f4a0f58108500040a2a00018500040a2a000187000f0213921f7396d1fe7482ffff004a00f7a71e0a"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[0]
+ie.ietype == 1 and ie.CauseValue == 128
+
+= IE_Cause(), basic instantiation
+ie = IE_Cause(CauseValue='IMSI not known')
+ie.ietype == 1 and ie.CauseValue == 194
+
+= IE_IMSI(), dissect
+h = "333333333333222222222222810083840800458800ba00000000fc1185060a2a00010a2a00024ace084b00a68204321000960eeec43e99ae00000202081132547600000332f42004d27b0ffc102c0787b611b2f9023914051a0400800002f1218300070661616161616184001480802110010100108106000000008306000000008500040a2a00018500040a2a00018600079111111111111187000d0213621f7396737374f2ffff0094000120970001029800080032f42004d204d299000240009a00081111111111110000d111193b"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[0]
+ie.ietype == 2 and ie.imsi == '2080112345670000'
+
+= IE_IMSI(), basic instantiation
+ie = IE_IMSI(imsi='208103397660354')
+ie.ietype == 2 and ie.imsi == '208103397660354'
+
+= IE_Routing(), dissect
+h = "33333333333322222222222281008384080045880072647100003e11dcf60a2a00010a2a0002084b084b005e78d93212004ef51a4ac3a291ff000332f42004d27b10eb3981b414058500040a2a00018500040a2a000187000f0213921f7396d1fe7482ffff004a0094000110970001019800080132f42004d204d299000240fcb60001015bf2090f"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[0]
+ie.ietype == 3 and ie.MCC == '234' and ie.MNC == '02' and ie.LAC == 1234 and ie.RAC == 123
+
+= IE_Routing(), basic instantiation
+ie = IE_Routing(MCC='234', MNC='02', LAC=1234, RAC=123)
+ie.ietype == 3 and ie.MCC == '234' and ie.MNC == '02' and ie.LAC == 1234 and ie.RAC == 123
+
+= IE_Recovery(), dissect
+h = "3333333333332222222222228100038408004500002ac6e60000fd11ccbc0a2a00010a2a0002084b084b001659db32020006c192a26c8cb400000e0e00000000f4b40b31"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[0]
+ie.ietype == 14 and ie.restart_counter == 14
+
+= IE_Recovery(), basic instantiation
+ie = IE_Recovery(restart_counter=14)
+ie.ietype == 14 and ie.restart_counter == 14
+
+= IE_SelectionMode(), dissect
+h = "333333333333222222222222810083840800458800c500000000fc1184df0a2a00010a2a00024a55084b00b1f62a321000a11c025b77dccc00000202081132547600000332f42004d27b0ffc1055080923117c347b6a14051a0a00800002f1218300070661616161616184001d8080211001000010810600000000830600000000000d00000a000005008500040a2a00018500040a2a00018600079111111111111187000f0213921f7396d3fe74f2ffff00640094000120970001019800080132f42004d204d299000240009a00081111111111110000eea69220"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[2]
+ie.ietype == 15 and ie.SelectionMode == 252
+
+= IE_SelectionMode(), basic instantiation
+ie = IE_SelectionMode(SelectionMode=252)
+ie.ietype == 15 and ie.SelectionMode == 252
+
+= IE_TEIDI(), dissect
+h = "3333333333332222222222228100838408004588005400000000fd1182850a2a00010a2a0002084b084b00406b46321300303f0ff4fb966f00000180109a0f08ef7f3af826978500040a2a00018500040a2a000187000f0213921f7396d1fe7482ffff004a00f7a71e0a"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[1]
+ie.ietype == 16 and ie.TEIDI == 0x9a0f08ef
+
+= IE_TEIDI(), basic instantiation
+ie = IE_TEIDI(TEIDI=0x9a0f08ef)
+ie.ietype == 16 and ie.TEIDI == 0x9a0f08ef
+
+= IE_TEICP(), dissect
+h = "333333333333222222222222810083840800458800c500000000fc1184df0a2a00010a2a00024a55084b00b1f62a321000a1b75eb617464800000202081132547600000332f42004d27b0ffc10db5c765711ba5d87ba14051a0a00800002f1218300070661616161616184001d8080211001000010810600000000830600000000000d00000a000005008500040a2a00018500040a2a00018600079111111111111187000f0213921f7396d3fe74f2ffff00640094000120970001019800080132f42004d204d299000240009a00081111111111110000eea69220"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[4]
+ie.ietype == 17 and ie.TEICI == 0xba5d87ba
+
+= IE_TEICP(), basic instantiation
+ie = IE_TEICP(TEICI=0xba5d87ba)
+ie.ietype == 17 and ie.TEICI == 0xba5d87ba
+
+= IE_Teardown(), dissect
+h = "3333333333332222222222228100838408004588002c00000000fd1184640a2a00010a2a00023d66084b00184c2232140008ba66ce5b6efe000013ff14050000c309006c"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[0]
+ie.ietype == 19 and ie.indicator == 255
+
+= IE_Teardown(), basic instantiation
+ie = IE_Teardown(indicator='True')
+ie.ietype == 19 and ie.indicator == 255
+
+= IE_NSAPI(), dissect
+h = "3333333333332222222222228100838408004588002c00000000fd1184640a2a00010a2a00023d66084b00184c2232140008dafc273ee7ab000013ff14050000c309006c"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[1]
+ie.ietype == 20 and ie.NSAPI == 5
+
+= IE_NSAPI(), basic instantiation
+ie = IE_NSAPI(NSAPI=5)
+ie.ietype == 20 and ie.NSAPI == 5
+
+= IE_ChargingCharacteristics(), dissect
+h = "333333333333222222222222810083840800458800bc00000000fc1184c90a2a00010a2a00024acf084b00a87bbb32100098a3e2565004a400000202081132547600000332f42004d27b0ffc10b87f17ad11c53c5e1b14051a0400800002f1218300070661616161616184001480802110010000108106000000008306000000008500040a2a00018500040a2a00018600079111111111111187000f0213921f7396d3fe74f2ffff004a0094000120970001019800080132f42004d204d299000240009a00081111111111110000951c5bbe"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[6]
+ie.ietype == 26 and ie.normal_charging == 0 and ie.prepaid_charging == 1 and ie.flat_rate_charging == 0
+
+= IE_ChargingCharacteristics(), basic instantiation
+ie = IE_ChargingCharacteristics(
+ normal_charging=0, prepaid_charging=1, flat_rate_charging=0)
+ie.ietype == 26 and ie.normal_charging == 0 and ie.prepaid_charging == 1 and ie.flat_rate_charging == 0
+
+= IE_TraceReference(), basic instantiation
+ie = IE_TraceReference(Trace_reference=0x1212)
+ie.ietype == 27 and ie.Trace_reference == 0x1212
+
+= IE_TraceType(), basic instantiation
+ie = IE_TraceType(Trace_type=0x1212)
+ie.ietype == 28 and ie.Trace_type == 0x1212
+
+= IE_ChargingId(), dissect
+h = "3333333333332222222222228100838408004588005400000000fd1182850a2a00010a2a0002084b084b00406b4632130030e77ffb7e30410000018010ed654ff37fff1bc3f28500040a2a00018500040a2a000187000f0213921f7396d1fe7482ffff004a00f7a71e0a"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[2]
+ie.ietype == 127 and ie.Charging_id == 0xff1bc3f2
+
+= IE_ChargingId(), basic instantiation
+ie = IE_ChargingId(Charging_id=0xff1bc3f2)
+ie.ietype == 127 and ie.Charging_id == 0xff1bc3f2
+
+= IE_EndUserAddress(), dissect
+h = "3333333333332222222222228100838408004588008500000000fd11840b0a2a00010a2a0002084b4a6c00717c8a32110061c1b9728f356a0000018008fe10af709e9011e3cb6a4b7fb60e1b28800006f1210a2a00038400218080210a0301000a03060ab0aa93802110030100108106ac14020a8306ac1402278500040a2a00018500040a2a000187000c0213621f7396486874f2ffff44ded108"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[5]
+ie.ietype == 128 and ie.length == 6 and ie.PDPTypeOrganization == 1 and ie.PDPTypeNumber == 0x21 and ie.PDPAddress == '10.42.0.3'
+
+= IE_EndUserAddress(), basic instantiation
+ie = IE_EndUserAddress(
+ length=6, PDPTypeOrganization=1, PDPTypeNumber=0x21, PDPAddress='10.42.0.3')
+ie.ietype == 128 and ie.length == 6 and ie.PDPTypeOrganization == 1 and ie.PDPTypeNumber == 0x21 and ie.PDPAddress == '10.42.0.3'
+
+= IE_AccessPointName(), dissect
+h = "333333333333222222222222810083840800458800bc00000000fc1184c90a2a00010a2a00024acf084b00a87bbb3210009867fe972185e800000202081132547600000332f42004d27b0ffc1093b20c3f11940eb2bf14051a0400800002f1218300070661616161616184001480802110010000108106000000008306000000008500040a2a00018500040a2a00018600079111111111111187000f0213921f7396d3fe74f2ffff004a0094000120970001019800080132f42004d204d299000240009a000811111111111100001b1212951c5bbe"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[8]
+ie.ietype == 131 and ie.APN == 'aaaaaa'
+
+= IE_AccessPointName(), basic instantiation
+ie = IE_AccessPointName(APN='aaaaaa')
+ie.ietype == 131 and ie.APN == 'aaaaaa'
+
+= IE_ProtocolConfigurationOptions(), dissect
+h = "333333333333222222222222810083840800458800c300000000fc1184e50a2a00010a2a00024a4d084b00af41993210009fdef90e15440900000202081132547600000332f42004d27b0ffc10c29998b81145c6c9ee14051a0a00800002f1218300070661616161616184001d80c02306010100060000802110010100108106000000008306000000008500040a2a00018500040a2a00018600079111111111111187000d0213621f73967373741affff0094000120970001029800080032f42004d204d299000240009a0008111111111111000081182fb2"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[9]
+ie.ietype == 132 and ie.Protocol_Configuration == '\x80\xc0#\x06\x01\x01\x00\x06\x00\x00\x80!\x10\x01\x01\x00\x10\x81\x06\x00\x00\x00\x00\x83\x06\x00\x00\x00\x00'
+
+= IE_ProtocolConfigurationOptions(), basic instantiation
+ie = IE_ProtocolConfigurationOptions(
+ length=29, Protocol_Configuration='\x80\xc0#\x06\x01\x01\x00\x06\x00\x00\x80!\x10\x01\x01\x00\x10\x81\x06\x00\x00\x00\x00\x83\x06\x00\x00\x00\x00')
+ie.ietype == 132 and ie.Protocol_Configuration == '\x80\xc0#\x06\x01\x01\x00\x06\x00\x00\x80!\x10\x01\x01\x00\x10\x81\x06\x00\x00\x00\x00\x83\x06\x00\x00\x00\x00'
+
+= IE_GSNAddress(), dissect
+h = "3333333333332222222222228100838408004588005400000000fd1182850a2a00010a2a0002084b084b00406b463213003031146413c18000000180109181ba027fcf701a8c8500040a2a00018500040a2a000187000f0213921f7396d1fe7482ffff004a00f7a71e0a"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[3]
+ie.ietype == 133 and ie.address == '10.42.0.1'
+
+= IE_GSNAddress(), basic instantiation
+ie = IE_GSNAddress(address='10.42.0.1')
+ie.ietype == 133 and ie.address == '10.42.0.1'
+
+= IE_MSInternationalNumber(), dissect
+h = "333333333333222222222222810083840800458800c300000000fc1184e50a2a00010a2a00024a4d084b00af41993210009f79504a3e048e00000202081132547600000332f42004d27b0ffc10a692773d1158da9e2214051a0a00800002f1218300070661616161616184001d80c02306010100060000802110010100108106000000008306000000008500040a2a00018500040a2a00018600079111111111111187000d0213621f73967373741affff0094000120970001029800080032f42004d204d299000240009a0008111111111111000081182fb2"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[12]
+ie.ietype == 134 and ie.flags == 145 and ie.digits == '111111111111'
+
+= IE_MSInternationalNumber(), basic instantiation
+ie = IE_MSInternationalNumber(flags=145, digits='111111111111')
+ie.ietype == 134 and ie.flags == 145 and ie.digits == '111111111111'
+
+= IE_QoS(), dissect
+h = "3333333333332222222222228100838408004588005400000000fd1182850a2a00010a2a0002084b084b00406b4632130030afe9d3a3317e0000018010bd82f3997f9febcaf58500040a2a00018500040a2a000187000f0213921f7396d1fe7482ffff004a00f7a71e0a"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[5]
+ie.ietype == 135 and ie.allocation_retention_prioiry == 2 and ie.delay_class == 2 and ie.traffic_class == 3
+
+= IE_QoS(), basic instantiation
+ie = IE_QoS(
+ allocation_retention_prioiry=2, delay_class=2, traffic_class=3)
+ie.ietype == 135 and ie.allocation_retention_prioiry == 2 and ie.delay_class == 2 and ie.traffic_class == 3
+
+= IE_CommonFlags(), dissect
+h = "3333333333332222222222228100a38408004588006800000000fd1134820a2a00010a2a00024aa5084b005408bb32120044623f97e3ac610000104d82c69214058500040a2a00018500040a2a000187000c0213921f739680fe74f2ffff94000130970001019800080132f42004d204d29900024000b6000101"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[5]
+ie.ietype == 148 and ie.nrsn == 1 and ie.no_qos_nego == 1 and ie.prohibit_payload_compression == 0
+
+= IE_CommonFlags(), basic instantiation
+ie = IE_CommonFlags(nrsn=1, no_qos_nego=1)
+ie.ietype == 148 and ie.nrsn == 1 and ie.no_qos_nego == 1 and ie.prohibit_payload_compression == 0
+
+= IE_APNRestriction(), basic instantiation
+ie = IE_APNRestriction(restriction_type_value=12)
+ie.ietype == 149 and ie.restriction_type_value == 12
+
+= IE_RATType(), dissect
+h = "3333333333332222222222228100a38408004588006800000000fd1134820a2a00010a2a00024aa5084b005408bb321200442f686a89d33c000010530ec20a14058500040a2a00018500040a2a000187000c0213921f739680fe74f2ffff94000130970001019800080132f42004d204d29900024000b6000101"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[6]
+ie.ietype == 151 and ie.RAT_Type == 1
+
+= IE_RATType(), basic instantiation
+ie = IE_RATType(RAT_Type=1)
+ie.ietype == 151 and ie.RAT_Type == 1
+
+= IE_UserLocationInformation(), dissect
+h = "3333333333332222222222228100a38408004588006800000000fd1134820a2a00010a2a00024aa5084b005408bb32120044981eb5dcb29400001016e85d9f14058500040a2a00018500040a2a000187000c0213921f739680fe74f2ffff94000130970001019800080132f42004d204d29900024000b6000101"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[7]
+ie.MCC == '234' and ie.MNC == '02' and ie.LAC == 1234 and ie.SAC == 1234
+
+= IE_UserLocationInformation(), basic instantiation
+ie = IE_UserLocationInformation(MCC='234', MNC='02', LAC=1234, SAC=1234)
+ie.ietype == 152 and ie.MCC == '234' and ie.MNC == '02' and ie.LAC == 1234 and ie.SAC == 1234
+
+= IE_MSTimeZone(), dissect
+h = "3333333333332222222222228100a38408004588006800000000fd1134820a2a00010a2a00024aa5084b005408bb32120044f24a4d5825290000102ca9c8c314058500040a2a00018500040a2a000187000c0213921f739680fe74f2ffff94000130970001019800080132f42004d204d29900024000b6000101"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[8]
+ie.ietype == 153 and ie.timezone == 64 and ie.daylight_saving_time == 0
+
+= IE_MSTimeZone(), basic instantiation
+ie = IE_MSTimeZone(timezone=64)
+ie.ietype == 153 and ie.timezone == 64 and ie.daylight_saving_time == 0
+
+= IE_IMEI(), dissect
+h = "333333333333222222222222810083840800458800c300000000fc1184e50a2a00010a2a00024a4d084b00af41993210009f2f3ae0eb7b9c00000202081132547600000332f42004d27b0ffc10424a10c8117ca21aba14051a0a00800002f1218300070661616161616184001d80c02306010100060000802110010100108106000000008306000000008500040a2a00018500040a2a00018600079111111111111187000d0213621f73967373741affff0094000120970001029800080032f42004d204d299000240009a0008111111111111000081182fb2"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[18] and ie.ietype == 154 and ie.IMEI == '0132750094080322'
+
+= IE_IMEI(), basic instantiation
+ie = IE_IMEI(IMEI='0132750094080322')
+ie.ietype == 154 and ie.IMEI == '0132750094080322'
+
+= IE_MSInfoChangeReportingAction(), basic instantiation
+ie = IE_MSInfoChangeReportingAction(Action=12)
+ie.ietype == 181 and ie.Action == 12
+
+= IE_DirectTunnelFlags(), dissect
+h = "3333333333332222222222228100a38408004588006800000000fd1134820a2a00010a2a00024aa5084b005408bb32120044d2a7dffabfb70000108caa6b0b14058500040a2a00018500040a2a000187000c0213921f739680fe74f2ffff94000130970001019800080132f42004d204d29900024000b6000101"
+gtp = Ether(h.decode('hex'))
+ie = gtp.IE_list[9]
+ie.ietype == 182 and ie.EI == 0 and ie.GCSI == 0 and ie.DTI == 1
+
+= IE_DirectTunnelFlags(), basic instantiation
+ie = IE_DirectTunnelFlags(DTI=1)
+ie.ietype == 182 and ie.EI == 0 and ie.GCSI == 0 and ie.DTI == 1
+
+= IE_BearerControlMode(), basic instantiation
+ie = IE_BearerControlMode(bearer_control_mode=1)
+ie.ietype == 184 and ie.bearer_control_mode == 1
+
+= IE_EvolvedAllocationRetentionPriority(), basic instantiation
+ie = IE_EvolvedAllocationRetentionPriority(PCI=1)
+ie.ietype == 191 and ie.PCI == 1
+
+= IE_CharginGatewayAddress(), basic instantiation
+ie = IE_CharginGatewayAddress()
+ie.ietype == 251 and ie.ipv4_address == '127.0.0.1' and ie.ipv6_address == '::1'
+
+= IE_PrivateExtension(), basic instantiation
+ie = IE_PrivateExtension(extention_value='hello')
+ie.ietype == 255 and ie.extention_value == 'hello'