fixeria has uploaded this change for review.
sgsn: TC_sgsn_context_req_in: match PDP Context IE
Change-Id: I965c0200ea380c55dc0cd8d3f8e5110883ce2646
Related: SYS#6603, OS#6294
---
M library/GTPv1C_Templates.ttcn
M sgsn/SGSN_Tests.ttcn
2 files changed, 82 insertions(+), 7 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/01/36601/1
diff --git a/library/GTPv1C_Templates.ttcn b/library/GTPv1C_Templates.ttcn
index 2eb1d7e..ecc84ad 100644
--- a/library/GTPv1C_Templates.ttcn
+++ b/library/GTPv1C_Templates.ttcn
@@ -464,6 +464,51 @@
pdp_addresslength2 := omit,
pdp_Address2 := omit
}
+ template (present) PDP_Context_GTPC tr_PDP_Context_GTPC(template (present) octetstring pdp_addr := ?,
+ template (present) octetstring ggsn_gsn_addr := ?,
+ template (present) octetstring apn := ?,
+ template (present) OCT4 ggsn_teic := ?,
+ template (present) OCT4 ggsn_teid := ?) := {
+ type_gtpc := '82'O,
+ lengthf := ?, /* overwritten */
+ nsapi := ?,
+ order := ?,
+ asi := ?,
+ vaa := ?,
+ ea := ?,
+ sapi := ?,
+ spare1 := ?,
+ qos_subLength := ?, /* overwritten */
+ qos_sub := ?,
+ qos_reqLength := ?, /* overwritten */
+ qos_req := ?,
+ qos_negLength := ?, /* overwritten */
+ qos_neg := ?,
+ snd := ?,
+ snu := ?,
+ sendNPDUnum := ?,
+ receiveNPDUnum := ?,
+ uteidControlPlane := ggsn_teic,
+ uteidData1 := ggsn_teid,
+ pdpcontext := ?,
+ pdp_typeorg := ?,
+ spare2 := ?,
+ pdp_typenum := ?,
+ pdp_addressLength := ?, /* overwritten */
+ pdp_address := pdp_addr,
+ ggsn_addressControlPlaneLength := ?, /* overwritten */
+ ggsn_addressControlPlane := ggsn_gsn_addr,
+ ggsn_addressUserPlaneLength := ?, /* overwritten */
+ ggsn_addressUserPlane := ggsn_gsn_addr,
+ apnLength := ?, /* overwritten */
+ apn := apn,
+ transactionId := ?,
+ spare3 := ?,
+ transactionID_cont := ?,
+ pdp_typenum2 := *,
+ pdp_addresslength2 := *,
+ pdp_Address2 := *
+ }
/* template matching reception of GTP-C unit-data */
@@ -1280,7 +1325,9 @@
/* SGSN Context Response - 7.5.4 */
template (present) GTPC_PDUs tr_SGSNContextRespPDU(template (present) GTP_Cause cause := ?,
- template hexstring imsi := *) := {
+ template hexstring imsi := *,
+ template MM_Context mm_context := *,
+ template PDP_Context_GTPC_List pdp_ctx_list := *) := {
sgsn_ContextResponse := {
cause := tr_Cause_gtpc(cause),
imsi := f_tr_Imsi(imsi),
@@ -1290,8 +1337,8 @@
radioPriority := *,
packetFlowID := *,
charging_char := *,
- mm_Context := *,
- pdp_Context := *,
+ mm_Context := mm_context,
+ pdp_Context := pdp_ctx_list,
sgsn_addr_controlPlane := *,
pdpContextPriorization := *,
radioPriority_LCS := *,
diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index da1511b..6d7079e 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -3730,6 +3730,7 @@
/* SGSN terminated SGSN Context Request procedure (we request, SGSN responds)
* 3GPP TS 23.401, Figure D.3.6-1: "Gn/Gp SGSN to MME Tracking Area Update procedure" */
private function f_TC_sgsn_context_req_in(charstring id) runs on BSSGP_ConnHdlr {
+ var PdpActPars apars := valueof(t_PdpActPars(mp_ggsn_ip));
var integer seq_nr := f_rnd_int(65535);
var Gtp1cUnitdata gtpc_ud;
timer T;
@@ -3742,6 +3743,8 @@
/* The MS attaches to GERAN/UTRAN and enjoys the service */
f_gmm_attach(false, false);
+ /* The MS activates a PDP context */
+ f_pdp_ctx_act(apars);
/* The MS switches to an LTE cell and performs Tracking Area Update Request there.
* The MME requests information about the MS by sending SGSN Context Request. */
@@ -3753,14 +3756,25 @@
ptmsi_sig := ts_PTMSI_sig('010203'O));
GTP.send(ts_GTPC_SGSNContextReq(peer, seq_nr, ctx_req));
+ /* Expected PDP Context parameters */
+ var template (present) PDP_Context_GTPC pdp_ctx;
+ pdp_ctx := tr_PDP_Context_GTPC(ggsn_gsn_addr := f_inet_addr(mp_ggsn_ip),
+ apn := ''O);
+ pdp_ctx.pdp_typeorg := apars.addr.pdpTypeOrg;
+ pdp_ctx.pdp_typenum := apars.addr.pdpTypeNum;
+ pdp_ctx.pdp_address := ''O; /* omit in t_AddrIPv4dyn */
+ pdp_ctx.nsapi := apars.nsapi;
+ pdp_ctx.sapi := apars.sapi;
+
/* The SGSN responds with subscriber's IMSI */
var template (present) GTPC_PDUs ctx_rsp;
ctx_rsp := tr_SGSNContextRespPDU(cause := GTP_CAUSE_REQUEST_ACCEPTED,
- imsi := g_pars.imsi);
+ imsi := g_pars.imsi,
+ pdp_ctx_list := { pdp_ctx });
/* SGSN Address for Control Plane */
var octetstring sgsn_addr := f_inet_addr(mp_sgsn_gtp_ip);
- ctx_rsp.sgsn_ContextResponse.sgsn_addr_controlPlane := tr_GsnAddr(mp_sgsn_gtp_ip);
+ ctx_rsp.sgsn_ContextResponse.sgsn_addr_controlPlane := tr_GsnAddr(sgsn_addr);
/* Match MM Context */
if (ispresent(g_pars.vec)) {
@@ -3772,8 +3786,6 @@
* See also 3GPP TS 29.060, section 7.7.28 and Table 47A */
}
- /* TODO: match PDP Context */
-
T.start(2.0);
alt {
[] GTP.receive(tr_GTPC_SGSNContextResp(?, ?, ctx_rsp)) -> value gtpc_ud {
@@ -3793,6 +3805,12 @@
/* HLR/HSS tells SGSN to forget this MS/UE */
GSUP.send(ts_GSUP_CL_REQ(g_pars.imsi, OSMO_GSUP_CANCEL_TYPE_UPDATE));
GSUP.receive(tr_GSUP_CL_RES(g_pars.imsi));
+
+ /* SGSN deletes the PDP context at GGSN */
+ GTP.receive(tr_GTPC_MsgType(?, deletePDPContextRequest, apars.ggsn_tei_c)) -> value gtpc_ud {
+ seq_nr := oct2int(gtpc_ud.gtpc.opt_part.sequenceNumber);
+ GTP.send(ts_GTPC_DeletePdpResp(gtpc_ud.peer, seq_nr, apars.sgsn_tei_c, '7F'O));
+ }
}
testcase TC_sgsn_context_req_in() runs on test_CT {
var BSSGP_ConnHdlr vc_conn;
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