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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


             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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