From: "zhiwei.he" <zhiwei.he@intel.com>
To: dts@dpdk.org
Cc: "zhiwei.he" <zhiwei.he@intel.com>
Subject: [dts] [PATCH V1 1/2] dep/add gtp for the advanced rss feature support gtp packets in CVL
Date: Tue, 31 Dec 2019 20:07:08 +0800 [thread overview]
Message-ID: <1577794029-82969-1-git-send-email-zhiwei.he@intel.com> (raw)
From: "zhiwei.he" <zhiwei.he@intel.com>
Signed-off-by: zhiwei.he <zhiwei.he@intel.com>
---
dep/gtp.py | 909 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 909 insertions(+)
create mode 100644 dep/gtp.py
diff --git a/dep/gtp.py b/dep/gtp.py
new file mode 100644
index 0000000..7d57789
--- /dev/null
+++ b/dep/gtp.py
@@ -0,0 +1,909 @@
+#! /usr/bin/env python
+
+# Copyright (C) 2018 Leonardo Monteiro <decastromonteiro@gmail.com>
+# 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
+
+# scapy.contrib.description = GPRS Tunneling Protocol (GTP)
+# scapy.contrib.status = loads
+
+from __future__ import absolute_import
+import struct
+
+
+from scapy.compat import chb, orb
+from scapy.error import warning
+from scapy.fields import BitEnumField, BitField, ByteEnumField, ByteField, \
+ ConditionalField, FieldLenField, FieldListField, FlagsField, IntField, \
+ IPField, PacketListField, ShortField, StrFixedLenField, StrLenField, \
+ XBitField, XByteField, XIntField
+from scapy.layers.inet import IP, UDP
+from scapy.layers.inet6 import IP6Field
+from scapy.modules.six.moves import range
+from scapy.packet import bind_layers, Packet, Raw
+from scapy.volatile import RandInt, RandIP, RandNum, RandString
+
+
+# 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",
+ 27: "pdu_notification_req",
+ 31: "supported_extension_headers_notification",
+ 254: "end_marker",
+ 255: "g_pdu"}
+
+IEType = {1: "Cause",
+ 2: "IMSI",
+ 3: "RAI",
+ 4: "TLLI",
+ 5: "P_TMSI",
+ 8: "IE_ReorderingRequired",
+ 14: "Recovery",
+ 15: "SelectionMode",
+ 16: "TEIDI",
+ 17: "TEICP",
+ 19: "TeardownInd",
+ 20: "NSAPI",
+ 26: "ChargingChrt",
+ 27: "TraceReference",
+ 28: "TraceType",
+ 127: "ChargingId",
+ 128: "EndUserAddress",
+ 131: "AccessPointName",
+ 132: "ProtocolConfigurationOptions",
+ 133: "GSNAddress",
+ 134: "MSInternationalNumber",
+ 135: "QoS",
+ 148: "CommonFlags",
+ 149: "APNRestriction",
+ 151: "RatType",
+ 152: "UserLocationInformation",
+ 153: "MSTimeZone",
+ 154: "IMEI",
+ 181: "MSInfoChangeReportingAction",
+ 184: "BearerControlMode",
+ 191: "EvolvedAllocationRetentionPriority",
+ 255: "PrivateExtention"}
+
+CauseValues = {0: "Request IMSI",
+ 1: "Request IMEI",
+ 2: "Request IMSI and IMEI",
+ 3: "No identity needed",
+ 4: "MS Refuses",
+ 5: "MS is not GPRS Responding",
+ 128: "Request accepted",
+ 129: "New PDP type due to network preference",
+ 130: "New PDP type due to single address bearer only",
+ 192: "Non-existent",
+ 193: "Invalid message format",
+ 194: "IMSI not known",
+ 195: "MS is GPRS Detached",
+ 196: "MS is not GPRS Responding",
+ 197: "MS Refuses",
+ 198: "Version not supported",
+ 199: "No resources available",
+ 200: "Service not supported",
+ 201: "Mandatory IE incorrect",
+ 202: "Mandatory IE missing",
+ 203: "Optional IE incorrect",
+ 204: "System failure",
+ 205: "Roaming restriction",
+ 206: "P-TMSI Signature mismatch",
+ 207: "GPRS connection suspended",
+ 208: "Authentication failure",
+ 209: "User authentication failed",
+ 210: "Context not found",
+ 211: "All dynamic PDP addresses are occupied",
+ 212: "No memory is available",
+ 213: "Reallocation failure",
+ 214: "Unknown mandatory extension header",
+ 215: "Semantic error in the TFT operation",
+ 216: "Syntactic error in TFT operation",
+ 217: "Semantic errors in packet filter(s)",
+ 218: "Syntactic errors in packet filter(s)",
+ 219: "Missing or unknown APN",
+ 220: "Unknown PDP address or PDP type",
+ 221: "PDP context without TFT already activated",
+ 222: "APN access denied : no subscription",
+ 223: "APN Restriction type incompatibility with currently active PDP Contexts", # noqa: E501
+ 224: "MS MBMS Capabilities Insufficient",
+ 225: "Invalid Correlation : ID",
+ 226: "MBMS Bearer Context Superseded",
+ 227: "Bearer Control Mode violation",
+ 228: "Collision with network initiated request"}
+
+Selection_Mode = {11111100: "MS or APN",
+ 11111101: "MS",
+ 11111110: "NET",
+ 11111111: "FutureUse"}
+
+TrueFalse_value = {254: "False",
+ 255: "True"}
+
+# http://www.arib.or.jp/IMT-2000/V720Mar09/5_Appendix/Rel8/29/29281-800.pdf
+ExtensionHeadersTypes = {
+ 0: "No more extension headers",
+ 1: "Reserved",
+ 2: "Reserved",
+ 64: "UDP Port",
+ 192: "PDCP PDU Number",
+ 193: "Reserved",
+ 194: "Reserved"
+}
+
+
+class TBCDByteField(StrFixedLenField):
+
+ def i2h(self, pkt, val):
+ return val
+
+ def m2i(self, pkt, val):
+ ret = []
+ for v in val:
+ byte = orb(v)
+ left = byte >> 4
+ right = byte & 0xf
+ if left == 0xf:
+ ret.append(TBCD_TO_ASCII[right:right + 1])
+ else:
+ ret += [TBCD_TO_ASCII[right:right + 1], TBCD_TO_ASCII[left:left + 1]] # noqa: E501
+ return b"".join(ret)
+
+ def i2m(self, pkt, val):
+ val = str(val)
+ ret_string = ""
+ for i in range(0, len(val), 2):
+ tmp = val[i:i + 2]
+ if len(tmp) == 2:
+ ret_string += chr(int(tmp[1] + tmp[0], 16))
+ else:
+ ret_string += chr(int("F" + tmp[0], 16))
+ return ret_string
+
+
+TBCD_TO_ASCII = b"0123456789*#abc"
+
+
+class GTP_ExtensionHeader(Packet):
+ @classmethod
+ def dispatch_hook(cls, _pkt=None, *args, **kargs):
+ if _pkt is None:
+ return GTP_UDPPort_ExtensionHeader
+ return cls
+
+
+class GTP_UDPPort_ExtensionHeader(GTP_ExtensionHeader):
+ fields_desc = [ByteField("length", 0x40),
+ ShortField("udp_port", None),
+ ByteEnumField("next_ex", 0, ExtensionHeadersTypes), ]
+
+
+class GTP_PDCP_PDU_ExtensionHeader(GTP_ExtensionHeader):
+ fields_desc = [ByteField("length", 0x01),
+ ShortField("pdcp_pdu", None),
+ ByteEnumField("next_ex", 0, ExtensionHeadersTypes), ]
+
+
+class GTPHeader(Packet):
+ # 3GPP TS 29.060 V9.1.0 (2009-12)
+ name = "GTP-C Header"
+ fields_desc = [BitField("version", 1, 3),
+ BitField("PT", 1, 1),
+ BitField("reserved", 0, 1),
+ BitField("E", 0, 1),
+ BitField("S", 0, 1),
+ BitField("PN", 0, 1),
+ ByteEnumField("gtp_type", None, GTPmessageType),
+ ShortField("length", None),
+ IntField("teid", 0),
+ ConditionalField(XBitField("seq", 0, 16), lambda pkt:pkt.E == 1 or pkt.S == 1 or pkt.PN == 1), # noqa: E501
+ ConditionalField(ByteField("npdu", 0), lambda pkt:pkt.E == 1 or pkt.S == 1 or pkt.PN == 1), # noqa: E501
+ ConditionalField(ByteEnumField("next_ex", 0, ExtensionHeadersTypes), lambda pkt:pkt.E == 1 or pkt.S == 1 or pkt.PN == 1), ] # noqa: E501
+
+ def post_build(self, p, pay):
+ p += pay
+ if self.length is None:
+ tmp_len = len(p) - 8
+ p = p[:2] + struct.pack("!H", tmp_len) + p[4:]
+ return p
+
+ def hashret(self):
+ return struct.pack("B", self.version) + self.payload.hashret()
+
+ def answers(self, other):
+ return (isinstance(other, GTPHeader) and
+ self.version == other.version and
+ self.payload.answers(other.payload))
+
+ @classmethod
+ def dispatch_hook(cls, _pkt=None, *args, **kargs):
+ if _pkt and len(_pkt) >= 1:
+ if (orb(_pkt[0]) >> 5) & 0x7 == 2:
+ from . import gtp_v2
+ return gtp_v2.GTPHeader
+ if _pkt and len(_pkt) >= 8:
+ _gtp_type = orb(_pkt[1:2])
+ return GTPforcedTypes.get(_gtp_type, GTPHeader)
+ return cls
+
+
+class GTP_U_Header(GTPHeader):
+ # 3GPP TS 29.060 V9.1.0 (2009-12)
+ name = "GTP-U Header"
+ # GTP-U protocol is used to transmit T-PDUs between GSN pairs (or between an SGSN and an RNC in UMTS), # noqa: E501
+ # encapsulated in G-PDUs. A G-PDU is a packet including a GTP-U header and a T-PDU. The Path Protocol # noqa: E501
+ # defines the path and the GTP-U header defines the tunnel. Several tunnels may be multiplexed on a single path. # noqa: E501
+
+
+# Some gtp_types have to be associated with a certain type of header
+GTPforcedTypes = {
+ 16: GTPHeader,
+ 17: GTPHeader,
+ 18: GTPHeader,
+ 19: GTPHeader,
+ 20: GTPHeader,
+ 21: GTPHeader,
+ 26: GTP_U_Header,
+ 27: GTPHeader,
+ 254: GTP_U_Header,
+ 255: GTP_U_Header
+}
+
+
+class GTPEchoRequest(Packet):
+ # 3GPP TS 29.060 V9.1.0 (2009-12)
+ name = "GTP Echo Request"
+
+ def hashret(self):
+ return struct.pack("H", self.seq)
+
+
+class IE_Base(Packet):
+
+ def extract_padding(self, pkt):
+ return "", pkt
+
+
+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)]
+
+
+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
+ TBCDByteField("MNC", "", 1),
+ ShortField("LAC", None),
+ ByteField("RAC", None)]
+
+
+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("restart_counter", 24)]
+
+
+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)]
+
+
+class IE_TEIDI(IE_Base):
+ name = "Tunnel Endpoint Identifier Data"
+ fields_desc = [ByteEnumField("ietype", 16, IEType),
+ XIntField("TEIDI", RandInt())]
+
+
+class IE_TEICP(IE_Base):
+ name = "Tunnel Endpoint Identifier Control Plane"
+ fields_desc = [ByteEnumField("ietype", 17, IEType),
+ XIntField("TEICI", RandInt())]
+
+
+class IE_Teardown(IE_Base):
+ name = "Teardown Indicator"
+ fields_desc = [ByteEnumField("ietype", 19, IEType),
+ ByteEnumField("indicator", "True", TrueFalse_value)]
+
+
+class IE_NSAPI(IE_Base):
+ # Identifies a PDP context in a mobility management context specified by TEICP # noqa: E501
+ name = "NSAPI"
+ fields_desc = [ByteEnumField("ietype", 20, IEType),
+ XBitField("sparebits", 0x0000, 4),
+ XBitField("NSAPI", RandNum(0, 15), 4)]
+
+
+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),
+ # producing charging information based on operator configured triggers. # noqa: E501
+ # 0000 .... .... .... : spare
+ # .... 1... .... .... : normal charging
+ # .... .0.. .... .... : prepaid charging
+ # .... ..0. .... .... : flat rate charging
+ # .... ...0 .... .... : hot billing charging
+ # .... .... 0000 0000 : reserved
+ XBitField("Ch_ChSpare", None, 4),
+ XBitField("normal_charging", None, 1),
+ XBitField("prepaid_charging", None, 1),
+ XBitField("flat_rate_charging", None, 1),
+ XBitField("hot_billing_charging", None, 1),
+ XBitField("Ch_ChReserved", 0, 8)]
+
+
+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)]
+
+
+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)]
+
+
+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 Address"
+ fields_desc = [ByteEnumField("ietype", 128, IEType),
+ # data network accessed by the GGPRS subscribers.
+ # - Request
+ # 1 Type (1byte)
+ # 2-3 Length (2bytes) - value 2
+ # 4 Spare + PDP Type Organization
+ # 5 PDP Type Number
+ # - Response
+ # 6-n PDP Address
+ ShortField("length", 2),
+ BitField("SPARE", 15, 4),
+ BitField("PDPTypeOrganization", 1, 4),
+ XByteField("PDPTypeNumber", None),
+ ConditionalField(IPField("PDPAddress", RandIP()),
+ lambda pkt: pkt.length == 6 or pkt.length == 22), # noqa: E501
+ ConditionalField(IP6Field("IPv6_PDPAddress", '::1'),
+ lambda pkt: pkt.length == 18 or pkt.length == 22)] # noqa: E501
+
+
+class APNStrLenField(StrLenField):
+ # Inspired by DNSStrField
+ def m2i(self, pkt, s):
+ ret_s = b""
+ tmp_s = s
+ while tmp_s:
+ tmp_len = orb(tmp_s[0]) + 1
+ if tmp_len > len(tmp_s):
+ warning("APN prematured end of character-string (size=%i, remaining bytes=%i)" % (tmp_len, len(tmp_s))) # noqa: E501
+ ret_s += tmp_s[1:tmp_len]
+ tmp_s = tmp_s[tmp_len:]
+ if len(tmp_s):
+ ret_s += b"."
+ s = ret_s
+ return s
+
+ def i2m(self, pkt, s):
+ s = b"".join(chb(len(x)) + x for x in s.split("."))
+ return s
+
+
+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)] # noqa: E501
+
+ def post_build(self, p, pay):
+ if self.length is None:
+ tmp_len = len(p) - 3
+ p = p[:2] + struct.pack("!B", tmp_len) + p[3:]
+ return p
+
+
+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)]
+
+
+class IE_GSNAddress(IE_Base):
+ name = "GSN Address"
+ fields_desc = [ByteEnumField("ietype", 133, IEType),
+ ShortField("length", 4),
+ IPField("address", RandIP())]
+
+
+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"]), # noqa: E501
+ TBCDByteField("digits", "33607080910", length_from=lambda x: x.length - 1)] # noqa: E501
+
+
+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),
+ ByteField("type", 1),
+ # Only type 1 is currently supported
+ TBCDByteField("MCC", "", 2),
+ # MNC: if the third digit of MCC is 0xf, then the length of MNC is 1 byte # noqa: E501
+ TBCDByteField("MNC", "", 1),
+ ShortField("LAC", None),
+ ShortField("SAC", None)]
+
+
+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)]
+
+
+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_ExtensionHeaderList(IE_Base):
+ name = "Extension Header List"
+ fields_desc = [ByteEnumField("ietype", 141, IEType),
+ FieldLenField("length", None, length_of="extension_headers"), # noqa: E501
+ FieldListField("extension_headers", [64, 192], ByteField("", 0))] # noqa: E501
+
+
+class IE_NotImplementedTLV(Packet):
+ name = "IE not implemented"
+ fields_desc = [ByteEnumField("ietype", 0, IEType),
+ ShortField("length", None),
+ StrLenField("data", "", length_from=lambda x: x.length)]
+
+ def extract_padding(self, pkt):
+ return "", pkt
+
+
+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,
+ 141: IE_ExtensionHeaderList,
+ 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."""
+ if len(s) < 1:
+ return Raw(s)
+ # Get the IE type
+ ietype = orb(s[0])
+ cls = ietypecls.get(ietype, Raw)
+
+ # if ietype greater than 128 are TLVs
+ if cls == Raw and ietype & 128 == 128:
+ cls = IE_NotImplementedTLV
+ return cls(s)
+
+
+class GTPEchoResponse(Packet):
+ # 3GPP TS 29.060 V9.1.0 (2009-12)
+ name = "GTP Echo Response"
+ fields_desc = [PacketListField("IE_list", [], IE_Dispatcher)]
+
+ def hashret(self):
+ return struct.pack("H", self.seq)
+
+ def answers(self, other):
+ return self.seq == other.seq
+
+
+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 GTPCreatePDPContextResponse(Packet):
+ # 3GPP TS 29.060 V9.1.0 (2009-12)
+ name = "GTP Create PDP Context Response"
+ fields_desc = [PacketListField("IE_list", [], IE_Dispatcher)]
+
+ def hashret(self):
+ return struct.pack("H", self.seq)
+
+ 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 = [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 = [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"
+ fields_desc = [PacketListField("IE_list", [], IE_Dispatcher)]
+
+
+class GTPDeletePDPContextRequest(Packet):
+ # 3GPP TS 29.060 V9.1.0 (2009-12)
+ name = "GTP Delete PDP Context Request"
+ fields_desc = [PacketListField("IE_list", [], IE_Dispatcher)]
+
+
+class GTPDeletePDPContextResponse(Packet):
+ # 3GPP TS 29.060 V9.1.0 (2009-12)
+ name = "GTP Delete PDP Context Response"
+ fields_desc = [PacketListField("IE_list", [], IE_Dispatcher)]
+
+
+class GTPPDUNotificationRequest(Packet):
+ # 3GPP TS 29.060 V9.1.0 (2009-12)
+ name = "GTP PDU Notification Request"
+ fields_desc = [PacketListField("IE_list", [IE_IMSI(),
+ IE_TEICP(TEICI=RandInt()),
+ IE_EndUserAddress(PDPTypeNumber=0x21), # noqa: E501
+ IE_AccessPointName(),
+ IE_GSNAddress(address="127.0.0.1"), # noqa: E501
+ ], IE_Dispatcher)]
+
+
+class GTPSupportedExtensionHeadersNotification(Packet):
+ name = "GTP Supported Extension Headers Notification"
+ fields_desc = [PacketListField("IE_list", [IE_ExtensionHeaderList(),
+ ], IE_Dispatcher)]
+
+
+class GTPmorethan1500(Packet):
+ # 3GPP TS 29.060 V9.1.0 (2009-12)
+ name = "GTP More than 1500"
+ fields_desc = [ByteEnumField("IE_Cause", "Cause", IEType),
+ BitField("IE", 1, 12000), ]
+
+
+# Bind GTP-C
+bind_layers(UDP, GTPHeader, dport=2123)
+bind_layers(UDP, GTPHeader, sport=2123)
+bind_layers(GTPHeader, GTPEchoRequest, gtp_type=1, S=1)
+bind_layers(GTPHeader, GTPEchoResponse, gtp_type=2, S=1)
+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_layers(GTPHeader, GTPSupportedExtensionHeadersNotification, gtp_type=31, S=1) # noqa: E501
+bind_layers(GTPHeader, GTP_UDPPort_ExtensionHeader, next_ex=64, E=1)
+bind_layers(GTPHeader, GTP_PDCP_PDU_ExtensionHeader, next_ex=192, E=1)
+
+# Bind GTP-U
+bind_layers(UDP, GTP_U_Header, dport=2152)
+bind_layers(UDP, GTP_U_Header, sport=2152)
+bind_layers(GTP_U_Header, GTPErrorIndication, gtp_type=26, S=1)
+bind_layers(GTP_U_Header, IP, gtp_type=255)
--
1.8.3.1
next reply other threads:[~2019-12-31 12:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-31 12:07 zhiwei.he [this message]
2019-12-31 12:07 ` [dts] [PATCH V1 2/2] dep/add gtp_v2 for the advanced rss feature to support gtp_v2 " zhiwei.he
2020-01-02 5:32 ` [dts] [PATCH V1 1/2] dep/add gtp for the advanced rss feature support gtp " Tu, Lijuan
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