hnbgw: test SCCP CR without payload
Various tweaks are required to allow RAN_Emulation to handle, and also
to expect, an SCCP CR that has no payload data.
Related: SYS#5968
Related: If0c5c0a76e5230bf22871f527dcb2dbdf34d7328 (osmo-hnbgw)
Change-Id: I827e081eaacfb8e76684ed1560603e6c8f896c38
diff --git a/hnbgw/HNBGW_Tests.ttcn b/hnbgw/HNBGW_Tests.ttcn
index b2c491e..1b1d709 100644
--- a/hnbgw/HNBGW_Tests.ttcn
+++ b/hnbgw/HNBGW_Tests.ttcn
@@ -167,7 +167,8 @@
hexstring imsi,
boolean ps_domain,
MgcpParameters mgcp_pars optional,
- HnbConfig hnb optional
+ HnbConfig hnb optional,
+ boolean separate_sccp_cr
}
/* We extend:
@@ -498,12 +499,21 @@
}
/* create an expect on the Iu side for the random NAS portion */
- var template (omit) octetstring nas := f_ranap_extract_l3(valueof(tx));
- f_ran_register_exp(valueof(nas));
+ if (g_pars.separate_sccp_cr) {
+ f_ran_register_sccp_cr_without_payload();
+ } else {
+ var template (omit) octetstring nas := f_ranap_extract_l3(valueof(tx));
+ f_ran_register_exp(valueof(nas));
+ }
/* send it via Iuh (creating a RUA connection) */
RUA.send(RUA_Conn_Req:{g_pars.ps_domain, tx});
+ if (g_pars.separate_sccp_cr) {
+ /* Acknowledge the empty SCCP CR. RAN_Emulation does the confirmation, no need to respond. */
+ BSSAP.receive(tr_RANAP_Conn_Req());
+ }
+
/* expect to receive it on the Iu side */
T.start;
alt {
@@ -634,11 +644,13 @@
***********************************************************************/
private template (value) TestHdlrParams
-t_pars(integer imsi_suffix, boolean ps_domain := false,integer hnb_idx := 0) := {
+t_pars(integer imsi_suffix, boolean ps_domain := false, integer hnb_idx := 0,
+ boolean separate_sccp_cr := false) := {
hnb_idx := hnb_idx,
imsi := f_gen_imsi(imsi_suffix),
ps_domain := ps_domain,
- hnb := omit /* filled in later */
+ hnb := omit, /* filled in later */
+ separate_sccp_cr := separate_sccp_cr
}
/* Create an Iuh connection; send InitialUE; expect it to appear on new SCCP conenction */
@@ -666,6 +678,43 @@
vc_conn.done;
}
+private function f_vty_set_sccp_cr_max_payload_len(TELNETasp_PT pt, integer val := 999999)
+{
+ f_vty_enter_config(pt);
+ f_vty_transceive(pt, "hnbgw");
+ f_vty_transceive(pt, "sccp cr max-payload-len " & int2str(val));
+ f_vty_transceive(pt, "end");
+}
+
+testcase TC_ranap_cs_initial_ue_empty_cr() runs on test_CT {
+ var ConnHdlr vc_conn;
+
+ f_init();
+ f_start_hnbs();
+
+ f_vty_set_sccp_cr_max_payload_len(HNBGWVTY, 0);
+
+ vc_conn := f_start_handler_with_pars(refers(f_tc_initial_ue), t_pars(1, separate_sccp_cr := true));
+ vc_conn.done;
+
+ /* reset */
+ f_vty_set_sccp_cr_max_payload_len(HNBGWVTY);
+}
+testcase TC_ranap_ps_initial_ue_empty_cr() runs on test_CT {
+ var ConnHdlr vc_conn;
+
+ f_init();
+ f_start_hnbs();
+
+ f_vty_set_sccp_cr_max_payload_len(HNBGWVTY, 0);
+
+ vc_conn := f_start_handler_with_pars(refers(f_tc_initial_ue), t_pars(2, true, separate_sccp_cr := true));
+ vc_conn.done;
+
+ /* reset */
+ f_vty_set_sccp_cr_max_payload_len(HNBGWVTY);
+}
+
/* Reply to a received CRCX with an OK (or the reply configured in cpars), using the given parameters.
* Return true when an OK reply was sent, false otherwise.
* Count occurrence of Osmux, include Osmux parameters in the reply if necessary. */
@@ -1104,6 +1153,8 @@
execute(TC_hnb_register());
execute(TC_ranap_cs_initial_ue());
execute(TC_ranap_ps_initial_ue());
+ execute(TC_ranap_cs_initial_ue_empty_cr());
+ execute(TC_ranap_ps_initial_ue_empty_cr());
execute(TC_ranap_cs_bidir());
execute(TC_ranap_ps_bidir());
execute(TC_rab_assignment());