pespin submitted this change.
stp: Introduce tests to validate inaccessible SP scenario
Related: OS#6892
Related: libosmo-sigtran.git Change-Id I7e89db3d82374ca03a2e71fb558c7cec9bd651c4
Change-Id: I8aa3aa902eb56c982529d8c79b7f069145b2547d
---
M stp/STP_Tests_IPA.ttcn
M stp/STP_Tests_M3UA.ttcn
M stp/expected-results.xml
3 files changed, 124 insertions(+), 1 deletion(-)
diff --git a/stp/STP_Tests_IPA.ttcn b/stp/STP_Tests_IPA.ttcn
index b110228..0a5b56c 100644
--- a/stp/STP_Tests_IPA.ttcn
+++ b/stp/STP_Tests_IPA.ttcn
@@ -638,6 +638,26 @@
f_tc_combinedlset_loadshare(true);
}
+/* test "traffic-mode override" behavior */
+testcase TC_inaccessible_sp() runs on IPA_CT {
+ var Misc_Helpers.ro_charstring asps := { "ipa-asp-override-sender" };
+ var IpaConfigs ipa_configs := ipa_build_configs(asps);
+ f_init_ipa(ipa_configs := ipa_configs);
+
+ /* bring up the 'sender' side (single ASP in AS) */
+ f_connect_ipa(0);
+ /* Here none of ipa-asp-override-receiver* is brought up on purpose, so test route failure inside IUT. */
+
+ var octetstring data := f_SCCP_UDT();
+ f_IPA_send(0, data);
+
+ /* STP discards the message to be forwarded, since its destination is not accessible. */
+ /* FIXME: DUNA doesn't exist in IPA. Sould we probably receive SCCP UDTS here? */
+ f_sleep(1.0);
+
+ setverdict(pass);
+}
+
private function f_IPA_ping(integer idx) runs on IPA_CT
{
var IpaCcmMsgtype ipa_ping_msg := IPAC_MSGT_PING;
@@ -753,6 +773,7 @@
execute( TC_unknown_client_dynamic_tmt_loadshare() );
execute( TC_combinedlset_loadshare() );
execute( TC_unknown_client_dynamic_combinedlset_loadshare() );
+ execute( TC_inaccessible_sp() );
execute( TC_beat() );
execute( TC_beat_timeout() );
diff --git a/stp/STP_Tests_M3UA.ttcn b/stp/STP_Tests_M3UA.ttcn
index ebdb6e1..4716bb4 100644
--- a/stp/STP_Tests_M3UA.ttcn
+++ b/stp/STP_Tests_M3UA.ttcn
@@ -49,6 +49,12 @@
M3uaConfigs mp_m3ua_configs := {};
integer mp_recovery_timeout_msec := 2000;
charstring mp_sccp_service_type := "mtp3_itu";
+
+ /* Some PC which is known to be inaccessible for the IUT (no route) */
+ integer mp_inaccessible_pc := 666;
+
+ /* Network Indicator of the STP (IUT) network: */
+ OCT1 mp_ni := '00'O;
}
type record M3uaConfig {
@@ -183,6 +189,30 @@
return rx;
}
+friend function f_M3UA_exp_no(integer idx, template (present) PDU_M3UA msg,
+ float timeout_val := 5.0, boolean answer_beat := true)
+runs on RAW_M3UA_CT return M3UA_RecvFrom {
+ var M3UA_RecvFrom rx;
+ timer T := timeout_val;
+ T.start;
+ alt {
+ [] M3UA[idx].receive(t_M3UA_RecvFrom(msg)) -> value rx {
+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
+ log2str("Received unexpected M3UA[", idx, "] ", rx));
+ }
+ [answer_beat] as_m3ua_beat_answer(idx);
+ [] M3UA[idx].receive(t_M3UA_RecvFrom(?)) -> value rx {
+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
+ log2str("Received unexpected M3UA[", idx, "] ", rx,
+ " before timeout expecting no ", msg));
+ }
+ [] T.timeout {
+ setverdict(pass);
+ }
+ }
+ return rx;
+}
+
/* flush any number of queued messages matching 'msg' */
friend function f_M3UA_flush(integer idx, template (present) PDU_M3UA msg) runs on RAW_M3UA_CT {
var M3UA_RecvFrom rx;
@@ -669,7 +699,7 @@
/* Test if traffic is routed from idx_tx/pc_tx to idx_rx/pc_rx */
friend function f_test_traffic(integer idx_tx, template (omit) OCT4 rctx_sender, OCT4 pc_tx,
integer idx_rx, template (omit) OCT4 rctx_receiver, OCT4 pc_rx,
- OCT1 si := '23'O, OCT1 ni := '00'O, OCT1 mp := '00'O, OCT1 sls := '00'O)
+ OCT1 si := '23'O, OCT1 ni := mp_ni, OCT1 mp := '00'O, OCT1 sls := '00'O)
runs on RAW_M3UA_CT {
var octetstring data := f_rnd_octstring_rnd_len(100);
f_M3UA_send(idx_tx, ts_M3UA_DATA(rctx_sender,
@@ -1765,6 +1795,73 @@
f_clear_m3ua();
}
+private function f_tc_inaccessible_sp_duna(integer idx_tx, OCT4 pc_sender, OCT4 rctx_sender,
+ OCT4 pc_receiver, OCT4 rctx_receiver) runs on RAW_M3UA_CT {
+ var octetstring data := f_rnd_octstring_rnd_len(100);
+ var template (value) M3UA_Protocol_Data m3ua_data;
+ /* Max for T8 is 1200 msec, so we leave some more time. to avodi race conditions: */
+ const float c_t8_max_sec := 1.2 + 0.5;
+
+ /* bring up the sender specifying a routing context */
+ f_M3UA_asp_up_act(idx_tx, rctx := rctx_sender);
+
+ /* check if DATA is accepted without Routing Context IE */
+ m3ua_data := ts_M3UA_protocol_data(pc_sender, pc_receiver, si:= '23'O, ni := mp_ni,
+ mp := '00'O, sls := '00'O, data := data);
+ f_M3UA_send(idx_tx, ts_M3UA_DATA(rctx_sender, m3ua_data), 1);
+ f_M3UA_exp(idx_tx, tr_M3UA_DUNA({ts_M3UA_PC(oct2int(pc_receiver), 0)}, rctx_sender));
+
+ /* Test Q.704 timer T8: After we received the first DUNA, if we send another message we
+ * shouldn't receive another DUNA until T8 times out. Max for T8 is 1200, so we leave
+ * some more time. */
+ f_M3UA_send(idx_tx, ts_M3UA_DATA(rctx_sender, m3ua_data), 1);
+ f_M3UA_exp_no(idx_tx, tr_M3UA_DUNA({ts_M3UA_PC(oct2int(pc_receiver), 0)}, rctx_sender),
+ timeout_val := c_t8_max_sec);
+
+ /* After T8, we should receive again a DUNA: */
+ f_M3UA_send(idx_tx, ts_M3UA_DATA(rctx_sender, m3ua_data), 1);
+ f_M3UA_exp(idx_tx, tr_M3UA_DUNA({ts_M3UA_PC(oct2int(pc_receiver), 0)}, rctx_sender));
+
+ /* Let T8 time out again: */
+ f_M3UA_send(idx_tx, ts_M3UA_DATA(rctx_sender, m3ua_data), 1);
+ f_M3UA_exp_no(idx_tx, tr_M3UA_DUNA({ts_M3UA_PC(oct2int(pc_receiver), 0)}, rctx_sender),
+ timeout_val := c_t8_max_sec);
+
+
+ f_clear_m3ua();
+}
+
+/* test whether the STP sends back a M3UA DUNA when receiving a pkt towards an inaccessible SP (non existing/routable PC) */
+testcase TC_inaccessible_sp_duna() runs on RAW_M3UA_CT {
+ var Misc_Helpers.ro_charstring asps := { "asp-sender" };
+ var M3uaConfigs m3ua_configs := m3ua_build_configs(asps);
+ var OCT4 rctx_sender := int2oct(m3ua_configs[0].routing_ctx, 4);
+ var OCT4 pc_sender := int2oct(m3ua_configs[0].point_code, 4);
+ var OCT4 rctx_receiver := int2oct(3, 4);
+ var OCT4 pc_receiver := int2oct(mp_inaccessible_pc, 4);
+
+ f_init_m3ua(m3ua_configs := m3ua_configs);
+
+ /* bring up the sender specifying a routing context */
+ f_tc_inaccessible_sp_duna(0, pc_sender, rctx_sender, pc_receiver, rctx_receiver);
+}
+
+/* test whether the STP sends back a M3UA DUNA when receiving a pkt towards an
+ * inaccessible SP (PC/AS known but no active ASPs towards it). */
+testcase TC_inaccessible_sp_duna2() runs on RAW_M3UA_CT {
+ var Misc_Helpers.ro_charstring asps := { "asp-sender", "asp-receiver0" };
+ var M3uaConfigs m3ua_configs := m3ua_build_configs(asps);
+ var OCT4 rctx_sender := int2oct(m3ua_configs[0].routing_ctx, 4);
+ var OCT4 pc_sender := int2oct(m3ua_configs[0].point_code, 4);
+ var OCT4 rctx_receiver := int2oct(m3ua_configs[1].routing_ctx, 4);
+ var OCT4 pc_receiver := int2oct(m3ua_configs[1].point_code, 4);
+
+ f_init_m3ua(m3ua_configs := m3ua_configs);
+
+ /* bring up the sender specifying a routing context */
+ f_tc_inaccessible_sp_duna(0, pc_sender, rctx_sender, pc_receiver, rctx_receiver);
+}
+
control {
/* M3UA Tests */
execute( TC_connect_asp_up() );
@@ -1782,6 +1879,8 @@
execute( TC_act_rctx_data_no_rctx() );
execute( TC_m3ua_sctp_srv_adm_shutdown() );
execute( TC_combinedlset_loadshare() );
+ execute( TC_inaccessible_sp_duna() );
+ execute( TC_inaccessible_sp_duna2() );
/* M3UA RKM tests */
execute( TC_rkm_reg_static_notpermitted() );
diff --git a/stp/expected-results.xml b/stp/expected-results.xml
index e0170de..5834abb 100644
--- a/stp/expected-results.xml
+++ b/stp/expected-results.xml
@@ -15,6 +15,8 @@
<testcase classname='STP_Tests_M3UA' name='TC_act_rctx_data_no_rctx' time='MASKED'/>
<testcase classname='STP_Tests_M3UA' name='TC_m3ua_sctp_srv_adm_shutdown' time='MASKED'/>
<testcase classname='STP_Tests_M3UA' name='TC_combinedlset_loadshare' time='MASKED'/>
+ <testcase classname='STP_Tests_M3UA' name='TC_inaccessible_sp_duna' time='MASKED'/>
+ <testcase classname='STP_Tests_M3UA' name='TC_inaccessible_sp_duna2' time='MASKED'/>
<testcase classname='STP_Tests_M3UA' name='TC_rkm_reg_static_notpermitted' time='MASKED'/>
<testcase classname='STP_Tests_M3UA' name='TC_rkm_reg_static_permitted' time='MASKED'/>
<testcase classname='STP_Tests_M3UA' name='TC_rkm_reg_dynamic_permitted' time='MASKED'/>
@@ -61,6 +63,7 @@
<testcase classname='STP_Tests_IPA' name='TC_unknown_client_dynamic_tmt_loadshare' time='MASKED'/>
<testcase classname='STP_Tests_IPA' name='TC_combinedlset_loadshare' time='MASKED'/>
<testcase classname='STP_Tests_IPA' name='TC_unknown_client_dynamic_combinedlset_loadshare' time='MASKED'/>
+ <testcase classname='STP_Tests_IPA' name='TC_inaccessible_sp' time='MASKED'/>
<testcase classname='STP_Tests_IPA' name='TC_beat' time='MASKED'/>
<testcase classname='STP_Tests_IPA' name='TC_beat_timeout' time='MASKED'/>
<testcase classname='STP_Tests_IPA' name='TC_clnt_beat_timeout' time='MASKED'/>
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