pespin has submitted this change. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/38576?usp=email )

Change subject: hnbgw: Introduce test TC_cs_iu_release_req_rua_disconnect ......................................................................

hnbgw: Introduce test TC_cs_iu_release_req_rua_disconnect

Related: SYS#6602 Change-Id: I6782920c4a86d3311eb54239ab13a18e393c1ec0 --- M hnbgw/HNBGW_Tests.ttcn M hnbgw/expected-results.xml M library/ranap/RANAP_Templates.ttcn 3 files changed, 56 insertions(+), 1 deletion(-)

Approvals: laforge: Looks good to me, but someone else must approve osmith: Looks good to me, but someone else must approve pespin: Looks good to me, approved Jenkins Builder: Verified

diff --git a/hnbgw/HNBGW_Tests.ttcn b/hnbgw/HNBGW_Tests.ttcn index 8a263d5..44f0e43 100644 --- a/hnbgw/HNBGW_Tests.ttcn +++ b/hnbgw/HNBGW_Tests.ttcn @@ -1325,6 +1325,58 @@ f_tc_ranap_creq_cref(8, true); }

+/* Scenario: HNB tears down the RUA/Iu conn by first sending RUA_DATA[RANAP + * IuReleaseReq], followed shortly by a RUA Disconnect with no RANAP and + * Cause!=Normal. HNBGW should release the SCCP connection through RLSD since it's + * impossible to terminate the Iu connection in a normal condition. (SYS#6602) */ +private function f_tc_cs_iu_release_req_rua_disconnect(charstring id) runs on ConnHdlr { + var RANAP_PDU tx; + timer T := 5.0; + + f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); + + tx := f_build_initial_ue(g_pars); + f_iuh2iu_connect(tx); + + f_create_rab(g_pars.mgcp_pars); + + RUA.send(ts_RANAP_IuReleaseRequest(ts_RanapCause_radio_rab_preempted)); + BSSAP.receive(tr_RANAP_IuReleaseRequest(ts_RanapCause_radio_rab_preempted)); + + RUA.send(RUA_Disc_Req:{{misc:=unspecified}, omit}); + + /* HNBGW tears down related MGW sessions: */ + T.start; + alt { + [] as_mgcp_dlcx() {} + [] T.timeout { + setverdict(fail, "Timeout waiting for DLCX"); + } + } + T.stop; + + /* We cannot guarantee we can send Iu-ReleaseCommand at RANAP_Emulation + * before it receives the RLSD from HNBGW, hence we don't send it. If we + * sent it, it would be ignored by HNBGW since the RUA conn is already + * disconnected: + * BSSAP.send(ts_RANAP_IuReleaseCommand(ts_RanapCause_radio_rab_preempted)); + */ + + BSSAP.receive(tr_MSC_CONN_PRIM_DISC_IND); + /* Let RAN_Emulation some time to answer RLSD with RLC: */ + f_sleep(1.0); +} +testcase TC_cs_iu_release_req_rua_disconnect() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_cs_iu_release_req_rua_disconnect), f_TestHdlrParams(9)); + vc_conn.done; + + f_shutdown_helper(); +} + type record FTeid { HostName addr, OCT4 teid @@ -2439,6 +2491,7 @@ execute(TC_ranap_ps_mo_disconnect()); execute(TC_ranap_cs_creq_cref()); execute(TC_ranap_ps_creq_cref()); + execute(TC_cs_iu_release_req_rua_disconnect());

if (mp_enable_pfcp_tests) { execute(TC_ps_rab_assignment_with_pfcp()); diff --git a/hnbgw/expected-results.xml b/hnbgw/expected-results.xml index 0b67ec6..7d8bbbf 100644 --- a/hnbgw/expected-results.xml +++ b/hnbgw/expected-results.xml @@ -1,5 +1,5 @@ <?xml version="1.0"?> -<testsuite name='Titan' tests='42' failures='0' errors='0' skipped='0' inconc='0' time='MASKED'> +<testsuite name='Titan' tests='50' failures='0' errors='0' skipped='0' inconc='0' time='MASKED'> <testcase classname='HNBGW_Tests' name='TC_hnb_register' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_hnb_register_duplicate' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_hnb_register_duplicate_reuse_sctp_assoc' time='MASKED'/> @@ -23,6 +23,7 @@ <testcase classname='HNBGW_Tests' name='TC_ranap_ps_mo_disconnect' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_ranap_cs_creq_cref' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_ranap_ps_creq_cref' time='MASKED'/> + <testcase classname='HNBGW_Tests' name='TC_cs_iu_release_req_rua_disconnect' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_ps_rab_assignment_without_pfcp' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_mscpool_L3Compl_on_1_cnlink' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_mscpool_L3Complete_by_imsi_round_robin' time='MASKED'/> diff --git a/library/ranap/RANAP_Templates.ttcn b/library/ranap/RANAP_Templates.ttcn index 3f9c497..b09d23e 100644 --- a/library/ranap/RANAP_Templates.ttcn +++ b/library/ranap/RANAP_Templates.ttcn @@ -13,6 +13,7 @@

template (value) Cause ts_RanapCause_om_intervention := { misc := 113 }; template (value) Cause ts_RanapCause_nas_normal := { nAS := 83 }; +template (value) Cause ts_RanapCause_radio_rab_preempted := { radioNetwork := 1 }; template (value) Cause ts_RanapCause_radio_conn_release := { radioNetwork := 40 }; template (value) Cause ts_RanapCause_radio_conn_lost := { radioNetwork := 46 };