neels has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/34973?usp=email )
Change subject: HNBGW_Tests.TC_second_rab_assignment
......................................................................
HNBGW_Tests.TC_second_rab_assignment
Related: SYS#6624
Change-Id: Iadaba0e5e82ad6d163ad509904ede213e2462d5c
---
M hnbgw/HNBGW_Tests.ttcn
M library/ranap/RANAP_Templates.ttcn
2 files changed, 172 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/73/34973/1
diff --git a/hnbgw/HNBGW_Tests.ttcn b/hnbgw/HNBGW_Tests.ttcn
index 505beab..c80ef89 100644
--- a/hnbgw/HNBGW_Tests.ttcn
+++ b/hnbgw/HNBGW_Tests.ttcn
@@ -2596,6 +2596,130 @@
f_shutdown_helper();
}
+/* When a HNB that is connected does another HNB Register, make sure the SCCP
links for all its UEs are disconnected in
+ * reasonable time. */
+friend function f_tc_hnb_reregister_cleanup_sccp(charstring id, TestHdlrParams
pars) runs on ConnHdlr {
+ var MgcpCommand mgcp_cmd;
+ var RANAP_PDU tx;
+
+ f_init_handler(pars, t_guard := 30.0);
+
+ /* TODO: HNBAP UE REGISTER */
+ //HNBAP.send(ts_HNBAP_UERegister())
+
+ f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit});
+
+ tx := f_build_initial_ue(g_pars);
+ f_iuh2iu_connect(tx);
+
+ f_create_rab(pars.mgcp_pars);
+
+ f_verify_talloc_count(HNBGWVTY, {
+ "sccp_connection", "hnbgw_context_map" //,
"ue_context"
+ /* TODO: "ue_context" should also be 1, but these
tests fail to do HNBAP UE REGISTER */
+ }, expect_count := 1, attempts := 5);
+ f_sleep(1.0);
+
+ /* Trigger cleanup of HNB, by sending another HNBAP HNB Register
Request */
+ var integer cell_id := g_pars.hnb_idx;
+ HNBAP.send(ts_HNBAP_HNBRegisterRequest(char2oct("TTCN3 HNodeB"),
+ '00F110'O,
+ int2bit(1 + cell_id, 28),
+ int2oct(2, 2),
+ int2oct(3, 1),
+ int2oct(4, 2)));
+
+ /* At this point I would like to confirm that SCCP was released by
osmo-hnbgw:
+ * SCCP.receive(RLSD)
+ * But this seems completely impossible. SCCP_Emulation handles RLSD
internally without letting any other layers
+ * know about it, and it seems impossible to check whether an SCCP
connection exists, either.
+ *
+ * Since that doesn't work, I am only checking whether the talloc
report has any sccp_connection instances left. */
+
+ timer T := 10.0;
+ T.start;
+ alt {
+ [] as_mgcp_dlcx(pars) {}
+ [] T.timeout {
+ setverdict(fail, "Timeout waiting for DLCX");
+ mtc.stop;
+ }
+ }
+ f_sleep(3.0);
+ f_verify_talloc_count(HNBGWVTY, {
+ "sccp_connection", "hnbgw_context_map" //,
"ue_context"
+ }, expect_count := 0);
+}
+
+testcase TC_hnb_reregister_cleanup_sccp() runs on test_CT {
+ var ConnHdlr vc_conn;
+ g_num_hnbs := 1;
+ f_init();
+
+ vc_conn :=
f_start_handler_with_pars(refers(f_tc_hnb_reregister_cleanup_sccp), t_pars(8));
+ vc_conn.done;
+
+ f_shutdown_helper();
+}
+
+/* In the field, we encountered a "normal" RAB Assignment that concludes
successfully, followed by another RAB
+ * Assignment that has different SDU subflow parameters, and does not contain
RTP information. At the time of writing,
+ * it seems that the second RAB Assignment causes a crash. Play through this
scenario. */
+friend function f_tc_second_rab_assignment(charstring id, TestHdlrParams pars)
runs on ConnHdlr {
+ var MgcpCommand mgcp_cmd;
+ var RANAP_PDU tx;
+ timer T := 5.0;
+
+ f_init_handler(pars);
+ f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit});
+
+ tx := f_build_initial_ue(g_pars);
+ f_iuh2iu_connect(tx);
+
+ f_create_rab(pars.mgcp_pars);
+
+ /* Now send a second RAB Assignment with different subflows and
omitting transportLayerAddress. (Assuming the
+ * first RAB Assignment's transportLayerAddress remains in use
unchanged.) */
+ var template RAB_SetupOrModifyList rab_sml;
+ rab_sml := ts_RAB_SML2(t_RAB_id(23),
+ ts_RabParams,
+ user_plane_info := omit,
+ transport_layer_info := omit);
+ tx := valueof(ts_RANAP_RabAssReq(rab_sml));
+ BSSAP.send(tx);
+ T.start;
+
+ // TODO: expect response
+
+ f_sleep(5.0);
+
+ /* Send Iu Release */
+ tx := valueof(ts_RANAP_IuReleaseCommand(ts_RanapCause_om_intervention));
+ f_iu2iuh(tx);
+
+ T.start;
+ alt {
+ [] as_mgcp_dlcx(pars) {}
+ [] T.timeout {
+ setverdict(fail, "Timeout waiting for DLCX");
+ }
+ }
+
+ tx := valueof(ts_RANAP_IuReleaseComplete());
+ f_iuh2iu(tx);
+}
+
+testcase TC_second_rab_assignment() runs on test_CT {
+ var ConnHdlr vc_conn;
+ g_num_hnbs := 1;
+ f_init();
+
+ vc_conn :=
f_start_handler_with_pars(refers(f_tc_second_rab_assignment), t_pars(3));
+ vc_conn.done;
+
+ f_shutdown_helper();
+}
+
control {
execute(TC_hnb_register());
execute(TC_hnb_register_duplicate());
@@ -2643,6 +2767,8 @@
execute( TC_sgsnpool_sccp_n_pcstate_detaches_cnlink() );
execute( TC_sgsnpool_sccp_n_pcstate_attaches_cnlink() );
+ execute(TC_second_rab_assignment());
+
/* Run at the end since it makes osmo-hnbgw <= 1.3.0 crash: OS#5676 */
execute(TC_hnb_reregister_reuse_sctp_assoc());
diff --git a/library/ranap/RANAP_Templates.ttcn
b/library/ranap/RANAP_Templates.ttcn
index 051195f..a713e2d 100644
--- a/library/ranap/RANAP_Templates.ttcn
+++ b/library/ranap/RANAP_Templates.ttcn
@@ -1331,6 +1331,42 @@
}
} }
+/* Like ts_RAB_SML(), but more control on presence/absence of individual IEs */
+template (value) RAB_SetupOrModifyList ts_RAB_SML2(
+ template (value) RAB_ID rab_id,
+ template (omit) RAB_Parameters rab_params,
+ template (omit) UserPlaneInformation user_plane_info,
+ template (omit) TransportLayerInformation transport_layer_info
+ ) := { {
+ {
+ id := id_RAB_SetupOrModifyItem,
+ firstCriticality := reject,
+ firstValue := {
+ rAB_SetupOrModifyItemFirst := {
+ rAB_ID := rab_id,
+ nAS_SynchronisationIndicator := omit,
+ rAB_Parameters := rab_params,
+ userPlaneInformation := user_plane_info,
+ transportLayerInformation :=
transport_layer_info,
+ service_Handover := omit,
+ iE_Extensions := omit
+ }
+ },
+ secondCriticality := ignore,
+ secondValue := {
+ rAB_SetupOrModifyItemSecond := {
+ pDP_TypeInformation := omit,
+ dataVolumeReportingIndication := omit,
+ dl_GTP_PDU_SequenceNumber := omit,
+ ul_GTP_PDU_SequenceNumber := omit,
+ dl_N_PDU_SequenceNumber := omit,
+ ul_N_PDU_SequenceNumber := omit,
+ iE_Extensions := omit
+ }
+ }
+ }
+} }
+
template (value) TransportLayerInformation ts_TLI_ps(template (value)
TransportLayerAddress tla,
template (value) GTP_TEI
gtp_tei) := {
transportLayerAddress := tla,
--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Iadaba0e5e82ad6d163ad509904ede213e2462d5c
Gerrit-Change-Number: 34973
Gerrit-PatchSet: 1
Gerrit-Owner: neels <[email protected]>
Gerrit-MessageType: newchange
