Harald Welte has uploaded this change for review. (
https://gerrit.osmocom.org/13866
Change subject: sgsn: Actual first Iu test case
......................................................................
sgsn: Actual first Iu test case
Change-Id: I66069e31c30d33934ad57cc2b8794f56ffd5c7d6
---
M sgsn/SGSN_Tests.ttcn
A sgsn/SGSN_Tests_Iu.ttcn
2 files changed, 120 insertions(+), 8 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/66/13866/1
diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index 5dae397..8bd32b1 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -1,5 +1,7 @@
module SGSN_Tests {
+friend module SGSN_Tests_Iu;
+
import from General_Types all;
import from Osmocom_Types all;
import from Native_Functions all;
@@ -455,16 +457,72 @@
f_send_llc(ts_LLC_UI(l3_enc, sapi, '0'B, n_u));
}
+/* trigger sending of a RANAP InitialUE and wait for SCCP connection
confirmation */
+function f_send_l3_initial_ue(template PDU_L3_MS_SGSN l3_mo) runs on
BSSGP_ConnHdlr {
+ log("Sending InitialUE: ", l3_mo);
+ var octetstring l3_enc := enc_PDU_L3_MS_SGSN(valueof(l3_mo));
+ var RANAP_PDU ranap;
+ var LAI lai := {
+ pLMNidentity := '62F224'O,
+ lAC := '1234'O,
+ iE_Extensions := omit
+ };
+ var SAI sai := {
+ pLMNidentity := lai.pLMNidentity,
+ lAC := lai.lAC,
+ sAC := '0000'O, /* FIXME */
+ iE_Extensions := omit
+ };
+ var IuSignallingConnectionIdentifier sigc_id := int2bit(23, 24); /*
FIXME */
+ var GlobalRNC_ID grnc_id := {
+ pLMNidentity := lai.pLMNidentity,
+ rNC_ID := 2342 /* FIXME */
+ };
+
+ ranap := valueof(ts_RANAP_initialUE_CS(lai, sai, l3_enc, sigc_id,
grnc_id));
+ BSSAP.send(ts_RANAP_Conn_Req(g_pars.sccp_addr_peer,
g_pars.sccp_addr_local, ranap));
+ alt {
+ [] BSSAP.receive(RAN_Conn_Prim:MSC_CONN_PRIM_CONF_IND) {}
+ [] BSSAP.receive(RAN_Conn_Prim:MSC_CONN_PRIM_DISC_IND) {
+ setverdict(fail, "DISC.ind from SCCP");
+ mtc.stop;
+ }
+ }
+}
+
+/* send a L3 (GMM/SM) message over whatever is the appropriate lower-layer
bearer */
+function f_send_l3(template PDU_L3_MS_SGSN l3_mo, integer gb_index := 0,
boolean initial := false) runs on BSSGP_ConnHdlr {
+ if (gb_index >= NUM_GB) {
+ if (initial) {
+ f_send_l3_initial_ue(l3_mo);
+ } else {
+ BSSAP.send(ts_PDU_DTAP_PS_MO(l3_mo));
+ }
+ } else {
+ f_send_l3_gmm_llc(l3_mo, gb_index);
+ }
+}
+
altstep as_mm_identity(integer gb_idx := 0) runs on BSSGP_ConnHdlr {
var MobileL3_CommonIE_Types.MobileIdentityLV mi;
- [] BSSGP[gb_idx].receive(tr_GMM_ID_REQ('001'B)) {
+ [gb_idx < NUM_GB] BSSGP[gb_idx].receive(tr_GMM_ID_REQ('001'B)) {
mi := valueof(ts_MI_IMSI_LV(g_pars.imsi));
- f_send_l3_gmm_llc(ts_GMM_ID_RESP(mi), gb_idx);
+ f_send_l3(ts_GMM_ID_RESP(mi), gb_idx);
repeat;
}
- [] BSSGP[gb_idx].receive(tr_GMM_ID_REQ('010'B)) {
+ [gb_idx >= NUM_GB]
BSSAP.receive(tr_PDU_DTAP_PS_MT(tr_GMM_ID_REQ('001'B))) {
+ mi := valueof(ts_MI_IMSI_LV(g_pars.imsi));
+ f_send_l3(ts_GMM_ID_RESP(mi), gb_idx);
+ repeat;
+ }
+ [gb_idx < NUM_GB] BSSGP[gb_idx].receive(tr_GMM_ID_REQ('010'B)) {
mi := valueof(ts_MI_IMEI_LV(g_pars.imei));
- f_send_l3_gmm_llc(ts_GMM_ID_RESP(mi), gb_idx);
+ f_send_l3(ts_GMM_ID_RESP(mi), gb_idx);
+ repeat;
+ }
+ [gb_idx >= NUM_GB]
BSSAP.receive(tr_PDU_DTAP_PS_MT(tr_GMM_ID_REQ('010'B))) {
+ mi := valueof(ts_MI_IMEI_LV(g_pars.imei));
+ f_send_l3(ts_GMM_ID_RESP(mi), gb_idx);
repeat;
}
}
@@ -475,7 +533,10 @@
var PDU_DTAP_PS_MT mt;
var PDU_L3_SGSN_MS l3_mt;
alt {
- [] BSSGP[gb_idx].receive(rx_tpl) -> value l3_mt { }
+ [gb_idx < NUM_GB] BSSGP[gb_idx].receive(rx_tpl) -> value l3_mt { }
+ [gb_idx >= NUM_GB] BSSAP.receive(tr_PDU_DTAP_PS_MT(rx_tpl)) -> value mt
{
+ l3_mt := mt.dtap;
+ }
}
return l3_mt;
}
@@ -543,7 +604,17 @@
l3_mo.msgs.gprs_mm.authenticationAndCipheringResponse.imeisv :=
valueof(ts_MI_IMEISV_TLV(g_pars.imei & '0'H));
}
- f_send_l3_gmm_llc(l3_mo, gb_idx);
+ f_send_l3(l3_mo, gb_idx);
+
+ /* Security Mode Command + Complete on Iu case */
+ if (gb_idx >= NUM_GB) {
+ BSSAP.receive(tr_RANAP_SecurityModeCmd(uia_algs := ?,
uia_key := oct2bit(g_pars.vec.ik),
+ key_sts := ?)) {
+ var IntegrityProtectionAlgorithm uia_chosen :=
0; /*standard_UMTS_integrity_algorithm_UIA1;*/
+
BSSAP.send(ts_RANAP_SecurityModeComplete(uia_chosen));
+
//BSSAP.receive(tr_RANAP_CommonId(imsi_hex2oct(g_pars.imsi)));
+ }
+ }
} else {
/* wait for identity procedure */
f_sleep(1.0);
@@ -649,7 +720,7 @@
* revisionLevelIndicatior is at the wrong place! */
attach_req.msgs.gprs_mm.attachRequest.msNetworkCapability.msNetworkCapabilityV.solSACapability
:= '0'B;
- f_send_l3_gmm_llc(attach_req, gb_idx);
+ f_send_l3(attach_req, gb_idx, initial := true);
f_gmm_auth(umts_aka_challenge, force_gsm_sres, gb_idx);
/* Expect SGSN to perform LU with HLR */
f_gmm_gsup_lu_isd();
@@ -658,7 +729,12 @@
f_process_attach_accept(l3_mt.msgs.gprs_mm.attachAccept);
/* FIXME: Extract P-TMSI, if any. Only send Complete if necessary */
- f_send_l3_gmm_llc(ts_GMM_ATTACH_COMPL, gb_idx);
+ f_send_l3(ts_GMM_ATTACH_COMPL, gb_idx);
+
+ /* IuPS case: Expect Iu Release */
+ if (gb_idx >= NUM_GB) {
+ as_iu_release_compl_disc();
+ }
}
private function f_TC_attach(charstring id) runs on BSSGP_ConnHdlr {
diff --git a/sgsn/SGSN_Tests_Iu.ttcn b/sgsn/SGSN_Tests_Iu.ttcn
new file mode 100644
index 0000000..2c2a8af
--- /dev/null
+++ b/sgsn/SGSN_Tests_Iu.ttcn
@@ -0,0 +1,36 @@
+module SGSN_Tests_Iu {
+
+import from Osmocom_Types all;
+
+import from SGSN_Tests all;
+
+import from RAN_Adapter all;
+import from RAN_Emulation all;
+import from RANAP_Templates all;
+import from RANAP_PDU_Descriptions all;
+import from RANAP_IEs all;
+
+
+private function f_TC_iu_attach(charstring id) runs on BSSGP_ConnHdlr {
+ var PdpActPars apars := valueof(t_PdpActPars(mp_ggsn_ip));
+
+ /* first perform regular attach */
+ f_gmm_attach(umts_aka_challenge := true, force_gsm_sres := false,
gb_idx := 3);
+ setverdict(pass);
+}
+testcase TC_iu_attach() runs on test_CT {
+ var BSSGP_ConnHdlr vc_conn;
+ f_init();
+ f_sleep(1.0);
+ vc_conn := f_start_handler(refers(f_TC_iu_attach), testcasename(),
g_gb, 1001);
+ vc_conn.done;
+}
+
+
+
+control {
+ execute( TC_iu_attach() );
+}
+
+
+}
--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I66069e31c30d33934ad57cc2b8794f56ffd5c7d6
Gerrit-Change-Number: 13866
Gerrit-PatchSet: 1
Gerrit-Owner: Harald Welte <lafo...@gnumonks.org>
