mme: Add GTPv2 support
this includes a GTPv2_CodecPort (for the usual transcoding) as wella as an empty GTPv2_PrivateExtensions.ttcn without which the TITAN GTPv2 ProtocolModule won't compile. Change-Id: I1c1b8409077103dd4e64e467d21d33d8c9c4ac95
This commit is contained in:
parent
95333a16eb
commit
0f7d03a787
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@ -0,0 +1,57 @@
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/* dual-faced port sitting on top of IPL4_asp UDP to encode/decode GTPv2C
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* (C) 2019 Harald Welte <laforge@gnumonks.org>
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* All rights reserved.
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*
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* Released under the terms of GNU General Public License, Version 2 or
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* (at your option) any later version.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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module GTPv2_CodecPort {
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import from IPL4asp_PortType all;
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import from IPL4asp_Types all;
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import from GTPv2C_Types all;
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/* identifies a remote peer (sender or receiver) */
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type record GtpPeer {
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ConnectionId connId,
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HostName remName,
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PortNumber remPort
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}
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/* Decoded GTP2C (Control Plane), used in send and receive direction */
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type record Gtp2cUnitdata {
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GtpPeer peer,
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PDU_GTPCv2 gtpc
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}
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/* Translation port on top of IPL4asp; ASP_Event passed through transparently */
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type port GTPv2C_PT message {
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out Gtp2cUnitdata;
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in Gtp2cUnitdata,
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ASP_ConnId_ReadyToRelease,
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ASP_Event;
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} with { extension "user IPL4asp_PT
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out(Gtp2cUnitdata -> ASP_SendTo: function(f_enc_Gtp2cUD))
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in(ASP_RecvFrom -> Gtp2cUnitdata: function(f_dec_Gtp2cUD);
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ASP_ConnId_ReadyToRelease -> ASP_ConnId_ReadyToRelease: simple;
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ASP_Event -> ASP_Event: simple)" }
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private function f_enc_Gtp2cUD(in Gtp2cUnitdata in_ud, out ASP_SendTo out_ud) {
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out_ud.connId := in_ud.peer.connId;
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out_ud.remName := in_ud.peer.remName;
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out_ud.remPort := in_ud.peer.remPort;
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out_ud.proto := { udp := {} };
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out_ud.msg := enc_PDU_GTPCv2(in_ud.gtpc);
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} with { extension "prototype(fast)" };
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private function f_dec_Gtp2cUD(in ASP_RecvFrom in_ud, out Gtp2cUnitdata out_ud) {
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out_ud.peer.connId := in_ud.connId;
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out_ud.peer.remName := in_ud.remName;
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out_ud.peer.remPort := in_ud.remPort;
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out_ud.gtpc := dec_PDU_GTPCv2(in_ud.msg);
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} with { extension "prototype(fast)" };
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}
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@ -0,0 +1,21 @@
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module GTPv2_PrivateExtensions {
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/* This is a small stub module to make GTPv2_Types.ttcn from
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* titan.ProtocolModules.GTPv2_v13.7.0 compile */
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import from General_Types all;
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type record PrivateExtension {
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OCT1 elementIdentifier,
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LIN2_BO_LAST lengthIndicator,
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BIT4 instance,
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BIT4 spare,
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octetstring data
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} with {
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variant (lengthIndicator) "LENGTHTO(data)";
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variant "PRESENCE (elementIdentifier = 'FE'O; )"
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}
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type record of PrivateExtension PrivateExtension_List;
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} with{ encode "RAW" }
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@ -0,0 +1,323 @@
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module GTPv2_Templates {
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/* (C) 2019 by Harald Welte <laforge@gnumonks.org>
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* All rights reserved.
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*
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* Released under the terms of GNU General Public License, Version 2 or
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* (at your option) any later version.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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import from General_Types all;
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import from Osmocom_Types all;
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import from GTPv2_Types all;
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private function fs_GTP2C_t_bit(template (omit) OCT4 teid) return BIT1 {
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if (istemplatekind(teid, "omit")) {
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return '0'B;
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} else {
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return '1'B;
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}
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}
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private function fs_GTP2C_p_bit(template (omit) PDU_GTPCv2 piggyback) return BIT1 {
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if (istemplatekind(piggyback, "omit")) {
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return '0'B;
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} else {
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return '1'B;
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}
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}
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template (present) PDU_GTPCv2 tr_PDU_GTP2C(template OCT4 teid := ?,
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template (present) GTPCv2_PDUs pdus := ?,
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template PDU_GTPCv2 piggyback := omit) := {
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spare := '000'B,
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t_Bit := ?,
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p_Bit := ?,
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version := '010'B,
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messageType := ?,
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lengthf := ?,
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tEID := teid,
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sequenceNumber := ?,
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spare3 := '00'O,
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gtpcv2_pdu := pdus,
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piggybackPDU_GTPCv2 := piggyback
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}
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/* 8.3 */
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template (value) IMSI ts_GTP2C_Imsi(template (value) hexstring imsi) := {
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elementIdentifier := '01'O,
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lengthIndicator := 0, /* overwritten */
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instance := '0000'B,
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spare := '0000'B,
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iMSI_Value := imsi
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}
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template (present) IMSI tr_GTP2C_Imsi(template (present) hexstring imsi) := {
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elementIdentifier := '01'O,
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lengthIndicator := ?,
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instance := ?,
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spare := '0000'B,
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iMSI_Value := imsi
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}
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/* 8.4-1 */
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/*
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type enumerated GTP2C_Cause {
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Local_Detach (2),
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Complete_Detach (3),
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RAT_changed_from_3GPP_to_Non_3GPP (4),
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ISR_deactivation (5),
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Error_Ind_from_RNC_eNB_SGSN_MME (5),
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IMSI_Detach_Only (7),
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Reactivation_Required (8),
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}
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*/
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const integer c_GTP2C_Cause_LocalDetach := 1;
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/* 8.4 */
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template (value) Cause ts_GTP2C_Cause(template (value) OCT1 cause,
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template (value) BIT1 cs) := {
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elementIdentifier := '02'O,
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lengthIndicator := 0, /* overwritten */
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instance := '0000'B,
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spare := '0000'B,
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causeValue := cause,
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cS := cs,
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bCE := '0'B,
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pCE := '0'B,
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spare2 := '00000'B,
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typeOfOffendingIE := omit,
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lengthIndicator2 := omit,
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instanceOfOffendingIE := omit,
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spare3 := omit
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}
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template (present) Cause tr_GTP2C_Cause(template (present) OCT1 cause) := {
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elementIdentifier := '02'O,
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lengthIndicator := ?,
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instance := ?,
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spare := '0000'B,
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causeValue := cause,
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cS := ?,
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bCE := ?,
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pCE := ?,
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spare2 := '00000'B,
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typeOfOffendingIE := *,
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lengthIndicator2 := *,
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instanceOfOffendingIE := *,
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spare3 := *
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}
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/* 8.5 */
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template (value) AccessPointName ts_GTP2C_APN(template (value) octetstring apn) := {
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elementIdentifier := '48'O,
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lengthIndicator := 0, /* overwritten */
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instance := '0000'B,
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spare := '0000'B,
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aPN_Value := apn
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}
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template (present) AccessPointName tr_GTP2C_APN(template (present) octetstring apn) := {
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elementIdentifier := '48'O,
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lengthIndicator := ?,
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instance := ?,
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spare := '0000'B,
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aPN_Value := apn
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}
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/* 8.14 */
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template (value) PDN_AddressAllocation
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ts_GTP2C_PdnAddrAlloc(template (value) BIT3 pdn_type,
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template (value) PDN_Address_and_Prefix addr_pfx) := {
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elementIdentifier := '4F'O,
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lengthIndicator := 0, /* overwritten */
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instance := '0000'B,
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spare := '0000'B,
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pDN_Type := pdn_type,
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spare2 := '00000'B,
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pDN_Address_and_Prefix := addr_pfx
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}
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template (present) PDN_AddressAllocation
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tr_GTP2C_PdnAddrAlloc(template (present) BIT3 pdn_type,
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template (present) PDN_Address_and_Prefix addr_pfx) := {
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elementIdentifier := '4F'O,
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lengthIndicator := ?,
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instance := ?,
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spare := '0000'B,
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pDN_Type := pdn_type,
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spare2 := '00000'B,
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pDN_Address_and_Prefix := addr_pfx
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}
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template (value) PDN_AddressAllocation
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ts_GTP2C_PdnAddrAlloc_v4(template (value) OCT4 addr) :=
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ts_GTP2C_PdnAddrAlloc('001'B, {iPv4_Address:=addr});
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template (present) PDN_AddressAllocation
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tr_GTP2C_PdnAddrAlloc_v4(template (present) OCT4 addr) :=
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ts_GTP2C_PdnAddrAlloc('001'B, {iPv4_Address:=addr});
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/* 8.17 */
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template (value) RAT_Type ts_GTP2C_RatType(template (value) integer rat) := {
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elementIdentifier := '53'O,
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lengthIndicator := 0, /* overwritten */
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instance := '0000'B,
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spare := '0000'B,
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rAT_TypeValue := rat,
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additionalOctets := omit
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}
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template (present) RAT_Type tr_GTP2C_RatType(template (present) integer rat) := {
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elementIdentifier := '53'O,
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lengthIndicator := ?,
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instance := ?,
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spare := '0000'B,
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rAT_TypeValue := rat,
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additionalOctets := *
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}
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/* 8.22 */
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private function f_bit4oct(template (omit) octetstring os) return BIT1
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{
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if (istemplatekind(os, "omit")) {
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return '0'B;
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} else {
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return '1'B;
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}
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}
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template (value) FullyQualifiedTEID
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ts_GTP2C_FTEID(integer if_type, OCT4 teid, template (omit) OCT4 v4_addr := omit,
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template (omit) OCT16 v6_addr := omit) := {
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elementIdentifier := '57'O,
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lengthIndicator := 0, /* overwritten */
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instance := '0000'B,
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spare := '0000'B,
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interfaceType := if_type,
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v6_Flag := f_bit4oct(v4_addr),
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v4_Flag := f_bit4oct(v6_addr),
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tEID_GRE_Key := teid,
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iPv4_Address := v4_addr,
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iPv6_Address := v6_addr,
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additionalOctets := omit
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}
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template (present) FullyQualifiedTEID
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tr_GTP2C_FTEID(template (present) integer if_type, template (present) OCT4 teid,
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template OCT4 v4_addr := omit,
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template OCT16 v6_addr := omit) := {
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elementIdentifier := '57'O,
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lengthIndicator := ?,
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instance := ?,
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spare := '0000'B,
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interfaceType := if_type,
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v6_Flag := ?,
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v4_Flag := ?,
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tEID_GRE_Key := teid,
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iPv4_Address := v4_addr,
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iPv6_Address := v6_addr,
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additionalOctets := omit
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}
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template (value) PDU_GTPCv2 ts_PDU_GTP2C(template (omit) OCT4 teid, template (value) OCT3 seq,
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template (value) OCT1 msg_type,
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template (value) GTPCv2_PDUs pdus,
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template (omit) PDU_GTPCv2 piggyback := omit) := {
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spare := '000'B,
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t_Bit := fs_GTP2C_t_bit(teid),
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p_Bit := fs_GTP2C_p_bit(piggyback),
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version := '010'B,
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messageType := msg_type,
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lengthf := 0, /* overwritten */
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tEID := teid,
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sequenceNumber := seq,
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spare3 := '00'O,
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gtpcv2_pdu := pdus,
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piggybackPDU_GTPCv2 := piggyback
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}
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template (present) PDU_GTPCv2
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tr_GTP2C_CreateSessionReq(template (present) hexstring imsi) := tr_PDU_GTP2C('00000000'O, {
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createSessionRequest := {
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iMSI := tr_GTP2C_Imsi(imsi),
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mSISDN := *,
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mEI := *,
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userLocationInfo := ?,
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servingNetwork := ?,
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rAT_Type := tr_GTP2C_RatType(6),
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indication := *,
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fullyQualifiedTEID := ?,
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accessPointName := tr_GTP2C_APN('012a'O), // '*'
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selectionMode := ?,
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pDN_Type := ?,
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pDN_AddressAllocation := ?,
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maxAPN_Restriction := ?,
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ambr := *,
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linkedEPS_Bearer_ID := omit,
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trustedWLANModeIndication := omit,
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protocolConfigOptions := omit,
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bearerContextGrouped := ?,
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traceInformation := *,
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recovery := omit,
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csid := omit,
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uE_TimeZone := ?,
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user_CSG_Information := omit,
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chargingCharacteristics := ?,
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lDN := omit,
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signallingPriorityIndication := *,
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iP_Addr := omit,
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portNumber := omit,
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aPCO := omit,
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trustedWLANAccessNetworkIdentifier := omit,
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cNOperatorSelectionEntity := omit,
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presenceReportingAreaInformation := omit,
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overloadControlInformationGrouped := omit,
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originationTimeStamp := *,
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maximumWaitTime := *,
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wLANLocationTimestamp := omit,
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nBIFOMContainer := omit,
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remoteUEContextGrouped := *,
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nodeIdentifier := *,
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extendedProtocolConfigOptions := omit,
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servingPLMNRateControl := omit,
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counter := omit,
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privateExtension := omit
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}});
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template (value) PDU_GTPCv2
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ts_GTP2C_CreateSessionResp(template (value) FullyQualifiedTEID_List fteids,
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template (value) PDN_AddressAllocation addr) :=
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ts_PDU_GTP2C('00000000'O, '000000'O, '20'O, {
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createSessionResponse := {
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cause := ts_GTP2C_Cause(int2oct(16, 1), '0'B),
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changeReportingAction := omit,
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cSG_InformationReportingAction := omit,
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heNBInformationReporting := omit,
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fullyQualifiedTEID := fteids,
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pDN_AddressAllocation := addr,
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aPN_Restriction := omit,
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ambr := omit,
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linkedEPS_Bearer_ID := omit,
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protocolConfigOptions := omit,
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bearerContextGrouped := omit,
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recovery := omit,
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chargingGatewayName := omit,
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chargingGatewayAddress := omit,
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csid := omit,
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lDN := omit,
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pGW_Back_OffTime := omit,
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aPCO := omit,
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trustedWLANIPv4Parameters := omit,
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indicationFlags := omit,
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presenceReportingAreaAction := omit,
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loadControlInformationGrouped := omit,
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overloadControlInformationGrouped := omit,
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nBIFOMContainer := omit,
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pDNConnectionChargingID := omit,
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extendedProtocolConfigOptions := omit,
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privateExtension := omit
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}});
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}
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@ -35,6 +35,14 @@ DIR=$BASEDIR/titan.ProtocolModules.NAS_EPS_15.2.0.1/src
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FILES="NAS_EPS_Types.ttcn"
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gen_links $DIR $FILES
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DIR=$BASEDIR/titan.ProtocolModules.GTPv2_v13.7.0/src
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FILES="GTPv2_Types.ttcn"
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gen_links $DIR $FILES
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DIR=$BASEDIR/titan.ProtocolModules.GTP_v13.5.0/src
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FILES="GTPC_EncDec.cc GTPC_Types.ttcn GTPU_EncDec.cc GTPU_Types.ttcn"
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gen_links $DIR $FILES
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DIR=../library/s1ap
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FILES="S1AP_CommonDataTypes.asn S1AP_Constants.asn S1AP_Containers.asn S1AP_IEs.asn S1AP_PDU_Contents.asn
|
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S1AP_PDU_Descriptions.asn "
|
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@ -46,7 +54,7 @@ FILES="Misc_Helpers.ttcn General_Types.ttcn GSM_Types.ttcn Osmocom_Types.ttcn Na
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FILES+="SGsAP_Templates.ttcn SGsAP_CodecPort.ttcn SGsAP_CodecPort_CtrlFunct.ttcn SGsAP_CodecPort_CtrlFunctDef.cc SGsAP_Emulation.ttcn DNS_Helpers.ttcn "
|
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FILES+="L3_Templates.ttcn "
|
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FILES+="S1AP_CodecPort.ttcn S1AP_CodecPort_CtrlFunctDef.cc S1AP_CodecPort_CtrlFunct.ttcn S1AP_Emulation.ttcn "
|
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FILES+="NAS_Templates.ttcn "
|
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FILES+="NAS_Templates.ttcn GTPv2_PrivateExtensions.ttcn GTPv2_Templates.ttcn "
|
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gen_links $DIR $FILES
|
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|
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ignore_pp_results
|
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|
|
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@ -1,6 +1,6 @@
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#!/bin/sh
|
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|
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FILES="*.ttcn *.asn *.c IPL4asp_PT.cc IPL4asp_discovery.cc Native_FunctionDefs.cc SGsAP_CodecPort_CtrlFunctDef.cc S1AP_CodecPort_CtrlFunctDef.cc TCCConversion.cc TCCEncoding.cc TCCInterface.cc TELNETasp_PT.cc S1AP_EncDec.cc LTE_CryptoFunctionDefs.cc "
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FILES="*.ttcn *.asn *.c IPL4asp_PT.cc IPL4asp_discovery.cc Native_FunctionDefs.cc SGsAP_CodecPort_CtrlFunctDef.cc S1AP_CodecPort_CtrlFunctDef.cc TCCConversion.cc TCCEncoding.cc TCCInterface.cc TELNETasp_PT.cc S1AP_EncDec.cc LTE_CryptoFunctionDefs.cc GTPU_EncDec.cc GTPC_EncDec.cc "
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export CPPFLAGS_TTCN3=""
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|
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Reference in New Issue