pespin has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/38594?usp=email )
Change subject: hnbgw: Introduce PfcpParameters in TestHdlrParameters
......................................................................
hnbgw: Introduce PfcpParameters in TestHdlrParameters
This allows creating generic functions to establish PS RABs based on
test setup configuration.
Change-Id: I5de50bb7032891a073e4e4e25b2dc86bc84e3d60
---
M hnbgw/ConnHdlr.ttcn
M hnbgw/HNBGW_Tests.ttcn
2 files changed, 170 insertions(+), 113 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/94/38594/1
diff --git a/hnbgw/ConnHdlr.ttcn b/hnbgw/ConnHdlr.ttcn
index 46cd6f2..47dbd21 100644
--- a/hnbgw/ConnHdlr.ttcn
+++ b/hnbgw/ConnHdlr.ttcn
@@ -193,6 +193,26 @@
}
}
+const OCT8 c_SEID0 := '0000000000000000'O;
+const OCT8 c_SEID1 := '1111111111111111'O;
+type record PfcpParameters {
+ /* whether we expect HNBGW to manage a UPF through PFCP: */
+ boolean pfcp_enabled,
+ charstring pfcp_local_addr,
+ Node_ID upf_node_id,
+ F_SEID up_f_seid,
+ F_SEID hnbgw_f_seid optional
+}
+
+template (value) PfcpParameters t_PfcpParams(boolean pfcp_enabled := false,
+ charstring pfcp_local_addr :=
"127.0.0.1") := {
+ pfcp_enabled := pfcp_enabled,
+ pfcp_local_addr := pfcp_local_addr,
+ upf_node_id := valueof(ts_PFCP_Node_ID_fqdn("\07osmocom\03org")),
+ up_f_seid := ts_PFCP_F_SEID_ipv4(f_inet_addr(pfcp_local_addr), c_SEID1),
+ hnbgw_f_seid := omit
+}
+
type record HnbConfig {
LocationAreaIdentification lai,
integer sac
@@ -211,7 +231,7 @@
boolean expect_separate_sccp_cr,
integer tx_sccp_cr_data_len,
boolean expect_compl_l3_success,
- charstring pfcp_local_addr,
+ PfcpParameters pfcp_pars,
octetstring nas_pdu optional,
/* local and remote SCCP addresses, used to transmit conectionless
* (unitdata) messages: */
@@ -232,7 +252,7 @@
integer tx_sccp_cr_data_len := 0,
boolean expect_compl_l3_success := true,
integer cn_idx := 0,
- charstring pfcp_local_addr := "127.0.0.1",
+ template (value) PfcpParameters pfcp_pars := t_PfcpParams(),
template (value) RANAP_IEs.Cause rab_rel_cause :=
ts_RanapCause_nas_normal,
integer hnbgw_timer_x31 := 5,
float t_guard := 20.0) := {
@@ -246,7 +266,7 @@
expect_separate_sccp_cr := expect_separate_sccp_cr,
tx_sccp_cr_data_len := tx_sccp_cr_data_len,
expect_compl_l3_success := expect_compl_l3_success,
- pfcp_local_addr := pfcp_local_addr,
+ pfcp_pars := pfcp_pars,
nas_pdu := omit,
sccp_addr_msc := omit,
sccp_addr_hnbgw := omit,
@@ -715,6 +735,141 @@
f_rab_ass_resp_cs();
}
+function f_pfcp_wait_assoc_setup_req() runs on ConnHdlr {
+ /* ask PFCPEM to route all PDUs to us */
+ f_PFCPEM_subscribe_bcast();
+
+ var PDU_PFCP m;
+
+ m := f_pfcp_expect(tr_PFCP_Assoc_Setup_Req(), wait_time := 15.0);
+ PFCP.send(ts_PFCP_Assoc_Setup_Resp(m.sequence_number,
g_pars.pfcp_pars.upf_node_id,
+ ts_PFCP_Cause(REQUEST_ACCEPTED),
1234));
+ /* ask PFCPEM to *not* route all PDUs to us anymore */
+ f_PFCPEM_unsubscribe_bcast();
+}
+
+function f_rab_ass_req_ps_with_pfcp() runs on ConnHdlr {
+ var RANAP_PDU tx;
+ var RANAP_PDU rx;
+ var PDU_PFCP m;
+
+ /* Subscribe for PFCP Session Establishment Request PDU(s), which are
+ * expected to have SEID set to 0, as per 3GPP TS 29.244, section
7.2.2.4.2. */
+ f_PFCPEM_subscribe_seid(c_SEID0);
+
+ /* Send RAB Assignment Request */
+ var template RAB_SetupOrModifyList rab_sml;
+ rab_sml := ts_RAB_SML_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.core.remote.addr),
g_pars.gtp_pars.core.remote.teid);
+ tx := valueof(ts_RANAP_RabAssReq(rab_sml));
+ BSSAP.send(tx);
+
+ /* Expect PFCP Session Establishment Request. */
+ m := f_pfcp_expect(tr_PFCP_Session_Est_Req());
+ /* Ask PFCPEM to route PDUs with to be indicated F-SEID to us. */
+ f_PFCPEM_subscribe_seid(c_SEID1);
+ /* We no longer expect to receive PFCP Session Establishment Request
PDU(s). */
+ f_PFCPEM_unsubscribe_seid(c_SEID0);
+
+ var PFCP_Session_Establishment_Request serq :=
m.message_body.pfcp_session_establishment_request;
+ /* Store HNBGW F-SEID for later: */
+ g_pars.pfcp_pars.hnbgw_f_seid := serq.CP_F_SEID;
+
+ /* Acting as UPF, invent a new PFCP SEID to send to HNBGW. Respond to
the Session Establishment.
+ * The PFCP response must have the same sequence_number as the request.
*/
+ var template F_TEID f_teid1 :=
ts_PFCP_F_TEID_ipv4(g_pars.gtp_pars.core.local.teid,
+
f_inet_addr(g_pars.gtp_pars.core.local.addr));
+ var template F_TEID f_teid2 :=
ts_PFCP_F_TEID_ipv4(g_pars.gtp_pars.access.local.teid,
+
f_inet_addr(g_pars.gtp_pars.access.local.addr));
+ var template Created_PDR pdr1 := ts_PFCP_Created_PDR(pdr_id :=
serq.create_PDR_list[0].grouped_ie.pdr_id,
+ local_F_TEID :=
f_teid1);
+ var template Created_PDR pdr2 := ts_PFCP_Created_PDR(pdr_id :=
serq.create_PDR_list[1].grouped_ie.pdr_id,
+ local_F_TEID :=
f_teid2);
+ var template PDU_PFCP r := ts_PFCP_Session_Est_Resp(seq_nr :=
m.sequence_number,
+ node_id :=
g_pars.pfcp_pars.upf_node_id,
+ seid :=
g_pars.pfcp_pars.hnbgw_f_seid.seid,
+ f_seid :=
g_pars.pfcp_pars.up_f_seid,
+ created_pdr :=
{pdr1, pdr2});
+ PFCP.send(r);
+
+ /* Expect on Iuh: RAB Assignment Request with IP/port from PFCP Session
Est Resp */
+ rab_sml := ts_RAB_SML_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.access.local.addr),
+ g_pars.gtp_pars.access.local.teid);
+ rx := valueof(ts_RANAP_RabAssReq(rab_sml));
+ f_rua_expect(rx);
+}
+
+function f_rab_ass_resp_ps_with_pfcp() runs on ConnHdlr {
+ var RANAP_PDU tx;
+ var RANAP_PDU rx;
+ var template PDU_PFCP r;
+ var PDU_PFCP m;
+
+ /* Send back RAB Assignment Response via Iuh */
+ var template RAB_SetupOrModifiedList rab_smdl;
+ rab_smdl := ts_RAB_SMdL_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.access.remote.addr),
+ g_pars.gtp_pars.access.remote.teid);
+ tx := valueof(ts_RANAP_RabAssResp(rab_smdl));
+ RUA.send(tx);
+
+ m :=
f_pfcp_expect(tr_PFCP_Session_Mod_Req(g_pars.pfcp_pars.up_f_seid.seid));
+ r := ts_PFCP_Session_Mod_Resp(m.sequence_number,
g_pars.pfcp_pars.hnbgw_f_seid.seid);
+ PFCP.send(r);
+
+ rab_smdl := ts_RAB_SMdL_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.core.local.addr), g_pars.gtp_pars.core.local.teid);
+ f_bssap_expect(tr_RANAP_RabAssResp(rab_smdl));
+}
+
+function f_create_rab_ps_with_pfcp() runs on ConnHdlr {
+ f_rab_ass_req_ps_with_pfcp();
+ f_rab_ass_resp_ps_with_pfcp();
+}
+
+function f_rab_ass_req_ps_without_pfcp() runs on ConnHdlr {
+ var RANAP_PDU tx;
+ var RANAP_PDU rx;
+
+ /* ask PFCPEM to route all PDUs to us */
+ f_PFCPEM_subscribe_bcast();
+ activate(as_disallow_pfcp());
+
+ var template RAB_SetupOrModifyList rab_sml;
+ rab_sml := ts_RAB_SML_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.core.remote.addr),
g_pars.gtp_pars.core.remote.teid);
+ tx := valueof(ts_RANAP_RabAssReq(rab_sml));
+ BSSAP.send(tx);
+
+ /* Expect on Iuh: unmodified RAB Assignment Request */
+ rx := valueof(ts_RANAP_RabAssReq(rab_sml));
+ f_rua_expect(rx);
+}
+
+function f_rab_ass_resp_ps_without_pfcp() runs on ConnHdlr {
+ var RANAP_PDU tx;
+ var RANAP_PDU rx;
+
+ /* Send back RAB Assignment Response via Iuh */
+ var template RAB_SetupOrModifiedList rab_smdl;
+ rab_smdl := ts_RAB_SMdL_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.access.remote.addr),
+ g_pars.gtp_pars.access.remote.teid);
+ tx := valueof(ts_RANAP_RabAssResp(rab_smdl));
+ RUA.send(tx);
+
+ /* Expect on IuPS: unmodified RAB Assignment Response */
+ f_bssap_expect(tr_RANAP_RabAssResp(rab_smdl));
+}
+
+function f_create_rab_ps_without_pfcp() runs on ConnHdlr {
+ f_rab_ass_req_ps_without_pfcp();
+ f_rab_ass_resp_ps_without_pfcp();
+}
+
+function f_create_rab_ps() runs on ConnHdlr {
+ if (g_pars.pfcp_pars.pfcp_enabled) {
+ f_create_rab_ps_with_pfcp();
+ } else {
+ f_create_rab_ps_without_pfcp();
+ }
+}
+
altstep as_mgcp_dlcx() runs on ConnHdlr {
var MgcpCommand mgcp_cmd;
diff --git a/hnbgw/HNBGW_Tests.ttcn b/hnbgw/HNBGW_Tests.ttcn
index a4c9703..e89a07f 100644
--- a/hnbgw/HNBGW_Tests.ttcn
+++ b/hnbgw/HNBGW_Tests.ttcn
@@ -512,13 +512,17 @@
template (value) RANAP_IEs.Cause
rab_rel_cause := ts_RanapCause_nas_normal)
runs on test_CT return TestHdlrParams {
var template (value) TestHdlrParams pars;
+ var template (value) PfcpParameters pfcp_pars;
+
+ pfcp_pars := t_PfcpParams(pfcp_enabled := mp_enable_pfcp_tests,
+ pfcp_local_addr := mp_pfcp_ip_local);
pars := t_pars(imsi_suffix,
ps_domain := ps_domain,
expect_separate_sccp_cr := expect_separate_sccp_cr,
tx_sccp_cr_data_len := tx_sccp_cr_data_len,
expect_compl_l3_success := expect_compl_l3_success,
cn_idx := f_cn_idx(ps_domain, cn_nr),
- pfcp_local_addr := mp_pfcp_ip_local,
+ pfcp_pars := pfcp_pars,
rab_rel_cause := rab_rel_cause,
hnbgw_timer_x31 := mp_hnbgw_timer_x31);
pars.sccp_addr_hnbgw := g_cn[valueof(pars.cn_idx)].sccp_addr_peer;
@@ -1380,99 +1384,25 @@
}
friend function f_tc_ps_rab_assignment_with_pfcp(charstring id) runs on
ConnHdlr {
- const OCT8 c_SEID0 := '0000000000000000'O;
- const OCT8 c_SEID1 := '1111111111111111'O;
var RANAP_PDU tx;
- var RANAP_PDU rx;
-
- /* ask PFCPEM to route all PDUs to us */
- f_PFCPEM_subscribe_bcast();
-
var PDU_PFCP m;
- var Node_ID upf_node_id :=
valueof(ts_PFCP_Node_ID_fqdn("\07osmocom\03org"));
-
- m := f_pfcp_expect(tr_PFCP_Assoc_Setup_Req(), wait_time := 15.0);
- PFCP.send(ts_PFCP_Assoc_Setup_Resp(m.sequence_number, upf_node_id,
- ts_PFCP_Cause(REQUEST_ACCEPTED),
1234));
-
- /* Subscribe for PFCP Session Establishment Request PDU(s), which are
- * expected to have SEID set to 0, as per 3GPP TS 29.244, section
7.2.2.4.2. */
- f_PFCPEM_subscribe_seid(c_SEID0);
-
- /* ask PFCPEM to *not* route all PDUs to us anymore */
- f_PFCPEM_unsubscribe_bcast();
+ f_pfcp_wait_assoc_setup_req();
tx := f_build_initial_ue(g_pars);
f_iuh2iu_connect(tx);
- /* Send RAB Assignment Request */
- var template RAB_SetupOrModifyList rab_sml;
- rab_sml := ts_RAB_SML_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.core.remote.addr),
g_pars.gtp_pars.core.remote.teid);
- tx := valueof(ts_RANAP_RabAssReq(rab_sml));
- BSSAP.send(tx);
-
- /* Expect PFCP Session Establishment Request. */
- m := f_pfcp_expect(tr_PFCP_Session_Est_Req());
- /* Ask PFCPEM to route PDUs with to be indicated F-SEID to us. */
- f_PFCPEM_subscribe_seid(c_SEID1);
- /* We no longer expect to receive PFCP Session Establishment Request
PDU(s). */
- f_PFCPEM_unsubscribe_seid(c_SEID0);
-
- var PFCP_Session_Establishment_Request serq :=
m.message_body.pfcp_session_establishment_request;
- var F_SEID hnbgw_f_seid := serq.CP_F_SEID;
-
- /* Acting as UPF, invent a new PFCP SEID to send to HNBGW. Respond to
the Session Establishment.
- * The PFCP response must have the same sequence_number as the request.
*/
- var template F_SEID up_f_seid :=
ts_PFCP_F_SEID_ipv4(f_inet_addr("127.0.0.1"), c_SEID1);
- var template F_TEID f_teid1 :=
ts_PFCP_F_TEID_ipv4(g_pars.gtp_pars.core.local.teid,
-
f_inet_addr(g_pars.gtp_pars.core.local.addr));
- var template F_TEID f_teid2 :=
ts_PFCP_F_TEID_ipv4(g_pars.gtp_pars.access.local.teid,
-
f_inet_addr(g_pars.gtp_pars.access.local.addr));
- var template Created_PDR pdr1 := ts_PFCP_Created_PDR(pdr_id :=
serq.create_PDR_list[0].grouped_ie.pdr_id,
- local_F_TEID :=
f_teid1);
- var template Created_PDR pdr2 := ts_PFCP_Created_PDR(pdr_id :=
serq.create_PDR_list[1].grouped_ie.pdr_id,
- local_F_TEID :=
f_teid2);
- var template PDU_PFCP r := ts_PFCP_Session_Est_Resp(seq_nr :=
m.sequence_number,
- node_id :=
upf_node_id,
- seid :=
hnbgw_f_seid.seid,
- f_seid := up_f_seid,
- created_pdr :=
{pdr1, pdr2});
- PFCP.send(r);
-
- /* Expect on Iuh: RAB Assignment Request with IP/port from PFCP Session
Est Resp */
- rab_sml := ts_RAB_SML_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.access.local.addr),
- g_pars.gtp_pars.access.local.teid);
- rx := valueof(ts_RANAP_RabAssReq(rab_sml));
- f_rua_expect(rx);
-
- /* Send back RAB Assignment Response via Iuh */
- var template RAB_SetupOrModifiedList rab_smdl;
- rab_smdl := ts_RAB_SMdL_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.access.remote.addr),
- g_pars.gtp_pars.access.remote.teid);
- tx := valueof(ts_RANAP_RabAssResp(rab_smdl));
- RUA.send(tx);
-
- m := f_pfcp_expect(tr_PFCP_Session_Mod_Req(up_f_seid.seid));
- r := ts_PFCP_Session_Mod_Resp(m.sequence_number, hnbgw_f_seid.seid);
- PFCP.send(r);
-
- rab_smdl := ts_RAB_SMdL_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.core.local.addr), g_pars.gtp_pars.core.local.teid);
- f_bssap_expect(tr_RANAP_RabAssResp(rab_smdl));
-
+ f_create_rab_ps_with_pfcp();
f_sleep(2.0);
+
tx := valueof(ts_RANAP_IuReleaseCommand(g_pars.rab_rel_cause));
f_iu2iuh(tx);
-
tx := valueof(ts_RANAP_IuReleaseComplete());
f_iuh2iu(tx);
- m := f_pfcp_expect(tr_PFCP_Session_Del_Req(up_f_seid.seid));
- PFCP.send(ts_PFCP_Session_Del_Resp(m.sequence_number,
hnbgw_f_seid.seid));
-
+ m :=
f_pfcp_expect(tr_PFCP_Session_Del_Req(g_pars.pfcp_pars.up_f_seid.seid));
+ PFCP.send(ts_PFCP_Session_Del_Resp(m.sequence_number,
g_pars.pfcp_pars.hnbgw_f_seid.seid));
/* ask PFCPEM to *not* route PDUs with this specific SEID to us */
f_PFCPEM_unsubscribe_seid(c_SEID1);
-
- f_sleep(2.0);
}
testcase TC_ps_rab_assignment_with_pfcp() runs on test_CT {
@@ -1490,44 +1420,16 @@
friend function f_tc_ps_rab_assignment_without_pfcp(charstring id) runs on
ConnHdlr {
var RANAP_PDU tx;
- var RANAP_PDU rx;
- timer T := 5.0;
-
- /* ask PFCPEM to route all PDUs to us */
- f_PFCPEM_subscribe_bcast();
- activate(as_disallow_pfcp());
-
tx := f_build_initial_ue(g_pars);
f_iuh2iu_connect(tx);
- /* Send RAB Assignment Request */
- var template RAB_SetupOrModifyList rab_sml;
- rab_sml := ts_RAB_SML_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.core.remote.addr),
g_pars.gtp_pars.core.remote.teid);
- tx := valueof(ts_RANAP_RabAssReq(rab_sml));
- BSSAP.send(tx);
-
- /* Expect on Iuh: unmodified RAB Assignment Request */
- rx := valueof(ts_RANAP_RabAssReq(rab_sml));
- f_rua_expect(rx);
-
- /* Send back RAB Assignment Response via Iuh */
- var template RAB_SetupOrModifiedList rab_smdl;
- rab_smdl := ts_RAB_SMdL_ps(t_RAB_id(23),
f_ts_RAB_TLA(g_pars.gtp_pars.access.remote.addr),
- g_pars.gtp_pars.access.remote.teid);
- tx := valueof(ts_RANAP_RabAssResp(rab_smdl));
- RUA.send(tx);
-
- /* Expect on IuPS: unmodified RAB Assignment Response */
- f_bssap_expect(tr_RANAP_RabAssResp(rab_smdl));
-
+ f_create_rab_ps_without_pfcp();
f_sleep(2.0);
+
tx := valueof(ts_RANAP_IuReleaseCommand(g_pars.rab_rel_cause));
f_iu2iuh(tx);
-
tx := valueof(ts_RANAP_IuReleaseComplete());
f_iuh2iu(tx);
-
- f_sleep(2.0);
}
testcase TC_ps_rab_assignment_without_pfcp() runs on test_CT {
--
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Gerrit-MessageType: newchange
Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I5de50bb7032891a073e4e4e25b2dc86bc84e3d60
Gerrit-Change-Number: 38594
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <[email protected]>
