fixeria has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/14450
Change subject: MSC_Tests.ttcn: introduce TC_mt_ussd_for_unknown_subscr
......................................................................
MSC_Tests.ttcn: introduce TC_mt_ussd_for_unknown_subscr
The idea of this test case is to check that OsmoMSC properly
rejects SS/USSD requests for unknown subscribers.
Running this test case against the current OsmoMSC helped
to discover several problems:
- OsmoMSC doesn't print anything in such cases;
- IMSI in the response error message is empty;
- both session state and ID IEs are omited;
which are going to be fixed soon.
Change-Id: Id35cd3ec15d1bab15260312d7bbb41e2d10349fe
Related: OS#2931
---
M msc/MSC_Tests.ttcn
1 file changed, 51 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/50/14450/1
diff --git a/msc/MSC_Tests.ttcn b/msc/MSC_Tests.ttcn
index 2c898fc..c57328f 100644
--- a/msc/MSC_Tests.ttcn
+++ b/msc/MSC_Tests.ttcn
@@ -3453,6 +3453,55 @@
f_vty_config(MSCVTY, "msc", "ncss guard-timeout 0");
}
+/* MT (network-originated) USSD for unknown subscriber */
+friend function f_tc_mt_ussd_for_unknown_subscr(charstring id,
BSC_ConnHdlrPars pars)
+runs on BSC_ConnHdlr {
+ var hexstring imsi := '000000000000000'H; /* Some unknown IMSI */
+ var OCT4 sid := '20000222'O;
+ timer T := 2.0;
+
+ f_init_handler(pars);
+ f_ran_register_imsi(imsi, 'FFFFFFFF'O);
+ f_create_gsup_expect(hex2str(imsi));
+
+ var template (value) GSUP_PDU gsup_req := ts_GSUP_PROC_SS_REQ(
+ imsi := imsi,
+ sid := sid,
+ state := OSMO_GSUP_SESSION_STATE_BEGIN,
+ ss := f_rnd_octstring(23)
+ );
+
+ /* Error with cause GMM_CAUSE_IMSI_UNKNOWN */
+ var template GSUP_PDU gsup_rsp := tr_GSUP_PROC_SS_ERR(
+ imsi := imsi,
+ sid := sid,
+ state := OSMO_GSUP_SESSION_STATE_END,
+ cause := 2 /* FIXME: introduce an enumerated type! */
+ );
+
+ /* Initiate a MT USSD notification */
+ GSUP.send(gsup_req);
+
+ /* Expect GSUP PROC_SS_ERROR message */
+ T.start;
+ alt {
+ [] GSUP.receive(gsup_rsp) {
+ setverdict(pass);
+ };
+ [] T.timeout {
+ setverdict(fail, "Timeout waiting for GSUP PROC_SS_ERROR
message");
+ }
+ /* We don't expect anything else */
+ [] as_unexp_gsup_or_bssap_msg();
+ }
+}
+testcase TC_mt_ussd_for_unknown_subscr() runs on MTC_CT {
+ var BSC_ConnHdlr vc_conn;
+ f_init();
+ vc_conn := f_start_handler(refers(f_tc_mt_ussd_for_unknown_subscr), 0);
+ vc_conn.done;
+}
+
/* A5/1 only permitted on network side; attempt an invalid CIPHER MODE
COMPLETE with A5/3 which MSC should reject. */
private function f_tc_cipher_complete_with_invalid_cipher(charstring id,
BSC_ConnHdlrPars pars) runs on BSC_ConnHdlr {
@@ -5301,6 +5350,8 @@
execute( TC_lu_and_mo_ussd_mo_release() );
execute( TC_lu_and_ss_session_timeout() );
+ execute( TC_mt_ussd_for_unknown_subscr() );
+
execute( TC_cipher_complete_with_invalid_cipher() );
execute( TC_cipher_complete_1_without_cipher() );
execute( TC_cipher_complete_3_without_cipher() );
--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Id35cd3ec15d1bab15260312d7bbb41e2d10349fe
Gerrit-Change-Number: 14450
Gerrit-PatchSet: 1
Gerrit-Owner: fixeria <axilira...@gmail.com>
Gerrit-MessageType: newchange
