pespin has submitted this change. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/34833?usp=email )
(
1 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the submitted
one.
)Change subject: epdg: Test GTPv2C CreateSession triggerd by EPDG_Tunnel Req
......................................................................
epdg: Test GTPv2C CreateSession triggerd by EPDG_Tunnel Req
Change-Id: I8f18c927b1897806233cc9d049c25694c1e639d4
---
M epdg/EPDG_Tests.ttcn
1 file changed, 84 insertions(+), 3 deletions(-)
Approvals:
Jenkins Builder: Verified
fixeria: Looks good to me, approved
osmith: Looks good to me, but someone else must approve
diff --git a/epdg/EPDG_Tests.ttcn b/epdg/EPDG_Tests.ttcn
index f93b77b..3a0c3a6 100644
--- a/epdg/EPDG_Tests.ttcn
+++ b/epdg/EPDG_Tests.ttcn
@@ -2,6 +2,7 @@
import from Misc_Helpers all;
import from General_Types all;
+import from Native_Functions all;
import from Osmocom_Types all;
import from L3_Common all;
@@ -13,6 +14,8 @@
import from DIAMETER_Templates all;
import from DIAMETER_Emulation all;
+import from GTPv2_Types all;
+import from GTPv2_Templates all;
import from GTPv2_Emulation all;
modulepar {
@@ -108,6 +111,17 @@
type record EPDG_ConnHdlrPars {
hexstring imsi,
+ charstring ue_ip,
+
+ /* TEI (Data) local side */
+ OCT4 teid,
+ /* TEI (Control) local side */
+ OCT4 teic,
+ /* TEI (Data) remote side */
+ OCT4 teid_remote optional,
+ /* TEI (Control) remote side */
+ OCT4 teic_remote optional,
+
AuthVector vec optional
};
@@ -122,11 +136,15 @@
}
}
-
private function f_init_pars(integer imsi_suffix := 1)
runs on MTC_CT return EPDG_ConnHdlrPars {
var EPDG_ConnHdlrPars pars := {
imsi := f_gen_imsi(imsi_suffix),
+ ue_ip := "192.168.123.50",
+ teid := '00000000'O,
+ teic := '00000000'O,
+ teid_remote := omit,
+ teic_remote := omit,
vec := f_gen_auth_vec_3g()
};
return pars;
@@ -231,7 +249,7 @@
use_gtpu_daemon := false /* TODO: maybe use, set to true */
};
- vc_GTP2 := GTPv2_Emulation_CT.create("GTP2_EM");
+ vc_GTP2 := GTPv2_Emulation_CT.create(id & "-GTPV2");
map(vc_GTP2:GTP2C, system:GTP2C);
connect(vc_GTP2:TEID0, self:TEID0);
vc_GTP2.start(GTPv2_Emulation.main(cfg));
@@ -255,6 +273,9 @@
/* tell GSUP dispatcher to send this IMSI to us */
f_create_gsup_expect(hex2str(g_pars.imsi));
+ /* tell GTPv2 dispatcher to send this IMSI to us */
+ f_gtp2_register_imsi(g_pars.imsi);
+
fn.apply(id);
}
@@ -266,9 +287,14 @@
vc_conn := EPDG_ConnHdlr.create(id);
+ /* GSUP */
connect(vc_conn:GSUP, vc_GSUP:GSUP_CLIENT);
connect(vc_conn:GSUP_PROC, vc_GSUP:GSUP_PROC);
+ /* GTP2 */
+ connect(vc_conn:GTP2, vc_GTP2:CLIENT);
+ connect(vc_conn:GTP2_PROC, vc_GTP2:CLIENT_PROC);
+
/* SWx */
vc_conn_swx := DIAMETER_ConnHdlr_CT.create(id);
connect(vc_conn_swx:DIAMETER, vc_SWx:DIAMETER_CLIENT);
@@ -336,6 +362,36 @@
}
}
+/* Diameter SWx SAR + SAA. */
+private altstep as_GTP2C_CreateSession_success() runs on EPDG_ConnHdlr {
+ var PDU_GTPCv2 rx_msg;
+ var template (value) FullyQualifiedTEID fteid_c_ie, fteid_u_ie;
+ var template (value) PDN_AddressAllocation paa;
+
+ [] GTP2.receive(tr_GTP2C_CreateSessionReq(g_pars.imsi)) -> value rx_msg
{
+ /* TODO: parse TEIC and TEID and store it in
g_pars.remote_tei{c,d} */
+
+ /* allocate + register TEID-C on local side */
+ g_pars.teic := f_gtp2_allocate_teid();
+ g_pars.teid := g_pars.teic;
+
+ fteid_c_ie := ts_GTP2C_FTEID(FTEID_IF_S2b_ePDG_GTPC,
g_pars.teic, 0,
+ f_inet_addr(mp_s2b_local_ip), omit);
+ fteid_u_ie := ts_GTP2C_FTEID(FTEID_IF_S2bU_ePDG_GTPU,
g_pars.teid, 2,
+ f_inet_addr(mp_s2b_local_ip), omit);
+ paa := ts_GTP2C_PdnAddrAlloc_v4(f_inet_addr(g_pars.ue_ip));
+ GTP2.send(ts_GTP2C_CreateSessionResp({ fteid_c_ie }, paa));
+ setverdict(pass);
+ }
+ [] GTP2.receive(PDU_GTPCv2:?) -> value rx_msg {
+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
log2str("Unexpected GTP2C msg rx: ", rx_msg));
+ }
+}
+private function f_GTP2C_CreateSession_success() runs on EPDG_ConnHdlr {
+ f_gtp2_register_udmsg('20'O);
+ as_GTP2C_CreateSession_success();
+}
+
/* GSUP AuthInfo Req + Resp, triggers SWx MAR + MAA. */
private function f_GSUP_AI_success() runs on EPDG_ConnHdlr {
var GSUP_PDU rx_gsup;
@@ -363,7 +419,7 @@
var template octetstring destination_name := *;
GSUP.send(ts_GSUP_UL_REQ(g_pars.imsi));
as_DIA_SWx_SA_success();
- /* Expect a positive response back to the translator; expect AIA */
+ /* Expect a positive response back to the translator */
alt {
[] GSUP.receive(tr_GSUP_UL_RES(g_pars.imsi, destination_name));
[] GSUP.receive(GSUP_PDU:?) -> value rx_gsup {
@@ -373,9 +429,25 @@
setverdict(pass);
}
+/* GSUP TunnelEPDG Tunnel Req + Resp, triggers S2b CreateSession Req +
Response. */
+private function f_GSUP_EPDGTunnel_success() runs on EPDG_ConnHdlr {
+ var GSUP_PDU rx_gsup;
+ GSUP.send(ts_GSUP_EPDGTunnel_REQ(g_pars.imsi));
+ f_GTP2C_CreateSession_success();
+ /* Expect a positive response back to the translator; */
+ alt {
+ [] GSUP.receive(tr_GSUP_EPDGTunnel_RES(g_pars.imsi));
+ [] GSUP.receive(GSUP_PDU:?) -> value rx_gsup {
+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
log2str("Unexpected GSUP msg rx: ", rx_gsup));
+ }
+ }
+ setverdict(pass);
+}
+
private function f_TC_authinfo_normal(charstring id) runs on EPDG_ConnHdlr {
f_GSUP_AI_success();
f_GSUP_LU_success();
+ f_GSUP_EPDGTunnel_success();
}
testcase TC_authinfo_normal() runs on MTC_CT {
--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I8f18c927b1897806233cc9d049c25694c1e639d4
Gerrit-Change-Number: 34833
Gerrit-PatchSet: 3
Gerrit-Owner: pespin <pes...@sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanits...@sysmocom.de>
Gerrit-Reviewer: lynxis lazus <lyn...@fe80.eu>
Gerrit-Reviewer: osmith <osm...@sysmocom.de>
Gerrit-Reviewer: pespin <pes...@sysmocom.de>
Gerrit-MessageType: merged
