ttcn3
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osmo-ttcn3-hacks
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epdg: Transmit MIP6-Agent-Info AVP in S6b SAR 

Inform the AAA-server about the selected PDN-GW.
Change-Id: Ia0f00a00b6474e19bb4cdc77724c75a55ef5c1f9
This commit is contained in:
Pau Espin 2024-03-05 13:25:19 +01:00
parent 9b2ebc005f
commit 009ab6fe1c
6 changed files with 58 additions and 3 deletions
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8
epdg/EPDG_Tests.ttcn
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@ -18,6 +18,7 @@ import from GSUP_Emulation all;
import from DIAMETER_Types all;
import from DIAMETER_Templates all;
import from DIAMETER_rfc4004_Templates all;
import from DIAMETER_ts29_273_Templates all;
import from DIAMETER_Emulation all;
@ -434,6 +435,9 @@ private function f_S6b_AA_success() runs on EPDG_ConnHdlr {
var PDU_DIAMETER rx_dia;
var UINT32 hbh_id := f_rnd_octstring(4);
var UINT32 ete_id := f_rnd_octstring(4);
var template (value) MIPv4_NONE_MIP_Home_Agent_Address pgw_addr;
pgw_addr := ts_AVP_Home_Agent_Address(IP, f_inet_addr(mp_s2b_local_ip));
/* Unlike AAR, AAA contains no IMSI. Register ete_id in DIAMETER_Emulation,
* so AIA is forwarded back to us in DIAMETER port instead of MTC_CT.DIAMETER_UNIT.
@ -442,7 +446,9 @@ private function f_S6b_AA_success() runs on EPDG_ConnHdlr {
S6b.send(ts_DIA_S6b_AAR(f_nai(),
int2oct(DIA_TS29_373_MIP6_Feature_Vector_GTPv2_SUPPORTED, 8),
g_pars.apn, hbh_id := hbh_id, ete_id := ete_id));
g_pars.apn,
pgw_addr,
hbh_id := hbh_id, ete_id := ete_id));
/* AAR in S6b in AAA-Server triggers Service-Assignment Request/Answer towards HSS: */
as_DIA_SWx_SA_success();

2
epdg/gen_links.sh
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@ -55,7 +55,7 @@ FILES+="Osmocom_CTRL_Types.ttcn "
FILES+="L3_Common.ttcn "
FILES+="DNS_Helpers.ttcn "
FILES+="DIAMETER_Types.ttcn DIAMETER_CodecPort.ttcn DIAMETER_CodecPort_CtrlFunct.ttcn DIAMETER_CodecPort_CtrlFunctDef.cc DIAMETER_Emulation.ttcn "
FILES+="DIAMETER_Templates.ttcn DIAMETER_rfc5447_Templates.ttcn DIAMETER_ts29_272_Templates.ttcn DIAMETER_ts29_273_Templates.ttcn "
FILES+="DIAMETER_Templates.ttcn DIAMETER_rfc4004_Templates.ttcn DIAMETER_rfc5447_Templates.ttcn DIAMETER_ts29_272_Templates.ttcn DIAMETER_ts29_273_Templates.ttcn "
FILES+="IPA_Types.ttcn IPA_CodecPort.ttcn IPA_CodecPort_CtrlFunct.ttcn IPA_CodecPort_CtrlFunctDef.cc
IPA_Emulation.ttcnpp "
FILES+="PCO_Types.ttcn GSUP_Types.ttcn GSUP_Templates.ttcn GSUP_Emulation.ttcn "

34
library/DIAMETER_rfc4004_Templates.ttcn Normal file
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@ -0,0 +1,34 @@
module DIAMETER_rfc4004_Templates {
/* (C) 2023 by sysmocom s.f.m.c. GmbH <info@sysmocom.de
* All rights reserved.
*
* Released under the terms of GNU General Public License, Version 2 or
* (at your option) any later version.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
import from General_Types all;
import from DIAMETER_Types all;
import from DIAMETER_Templates all;
import from Osmocom_Types all;
import from Misc_Helpers all;
/* 4.2.1. MIP6-Agent-Info AVP */
template (value) MIPv4_NONE_MIP_Home_Agent_Address ts_AVP_Home_Agent_Address(template (value) AddressType addr_type,
template (value) octetstring addr_data) := {
address_type := addr_type,
address_data := addr_data
}
template (value) GenericAVP ts_AVP_MIPHomeAgentAddress(template (value) MIPv4_NONE_MIP_Home_Agent_Address addr) := {
avp := {
avp_header := ts_DIA_Hdr(c_AVP_Code_MIPv4_NONE_MIP_Home_Agent_Address),
avp_data := {
avp_MIPv4_NONE_MIP_Home_Agent_Address := addr
}
}
}
}

13
library/DIAMETER_rfc5447_Templates.ttcn
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@ -14,6 +14,19 @@ import from DIAMETER_Types all;
import from DIAMETER_Templates all;
import from Osmocom_Types all;
import from Misc_Helpers all;
import from DIAMETER_rfc4004_Templates all;
/* 4.2.1. MIP6-Agent-Info AVP */
template (value) GenericAVP ts_AVP_MIP6AgentInfo(template (value) MIPv4_NONE_MIP_Home_Agent_Address addr) := {
avp := {
avp_header := ts_DIA_Hdr(c_AVP_Code_MIPv6_NONE_MIP6_Agent_Info),
avp_data := {
avp_MIPv6_NONE_MIP6_Agent_Info := {
ts_AVP_MIPHomeAgentAddress(addr)
}
}
}
}
/* 4.2.5. MIP6-Feature-Vector AVP */
const uint64_t DIA_RFC5447_MIP6_Feature_Vector_MIP6_INTEGRATED := hex2int('0000000000000001'H);

2
library/DIAMETER_ts29_273_Templates.ttcn
View File

@ -283,6 +283,7 @@ template (value) PDU_DIAMETER
ts_DIA_S6b_AAR(template (value) charstring username_nai,
template (value) MIPv6_NONE_MIP6_Feature_Vector mip6_feat_vec,
template (value) charstring apn,
template (value) MIPv4_NONE_MIP_Home_Agent_Address pgw_addr,
template (value) octetstring sess_id := c_def_sess_id,
template (value) charstring orig_host := "pgw.localdomain",
template (value) charstring orig_realm := "localdomain",
@ -303,6 +304,7 @@ ts_DIA_S6b_AAR(template (value) charstring username_nai,
ts_AVP_DestinationRealm(dest_realm),
ts_AVP_AuthRequestType(AUTHORIZE_ONLY),
ts_AVP_UserName(char2oct(valueof(username_nai))),
ts_AVP_MIP6AgentInfo(pgw_addr),
ts_AVP_MIP6FeatureVector(mip6_feat_vec),
ts_AVP_ServiceSelection(valueof(apn))
/* TODO: Lots other optional */

2
pgw/gen_links.sh
View File

@ -64,7 +64,7 @@ FILES+="GTPv2_PrivateExtensions.ttcn GTPv2_Templates.ttcn "
FILES+="GTPv2_CodecPort.ttcn GTPv2_CodecPort_CtrlFunctDef.cc GTPv2_CodecPort_CtrlFunct.ttcn GTPv2_Emulation.ttcn "
FILES+="DNS_Helpers.ttcn "
FILES+="DIAMETER_Types.ttcn DIAMETER_CodecPort.ttcn DIAMETER_CodecPort_CtrlFunct.ttcn DIAMETER_CodecPort_CtrlFunctDef.cc DIAMETER_Emulation.ttcn "
FILES+="DIAMETER_Templates.ttcn DIAMETER_ts29_212_Templates.ttcn DIAMETER_ts29_272_Templates.ttcn DIAMETER_rfc5447_Templates.ttcn DIAMETER_ts29_273_Templates.ttcn DIAMETER_ts32_299_Templates.ttcn "
FILES+="DIAMETER_Templates.ttcn DIAMETER_rfc4004_Templates.ttcn DIAMETER_rfc5447_Templates.ttcn DIAMETER_ts29_212_Templates.ttcn DIAMETER_ts29_272_Templates.ttcn DIAMETER_ts29_273_Templates.ttcn DIAMETER_ts32_299_Templates.ttcn "
gen_links $DIR $FILES
ignore_pp_results