[M] Change in osmo-ttcn3-hacks[master]: sgsn: TC_sgsn_context_req_in: match PDP Context IE
fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/36601?usp=email )
Change subject: sgsn: TC_sgsn_context_req_in: match PDP Context IE ......................................................................
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;
-
fixeria