pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/35167?usp=email ) Change subject: hnbgw: Introduce test TC_rab_assign_mgw_iuup_addr_chg ...................................................................... hnbgw: Introduce test TC_rab_assign_mgw_iuup_addr_chg Change-Id: Ibfc37118ed3a67e4ca3f417273bedba127be7639 Related: SYS#6657 Related: OS#6127 --- M hnbgw/HNBGW_Tests.ttcn M hnbgw/expected-results.xml 2 files changed, 50 insertions(+), 1 deletion(-) git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/67/35167/1 diff --git a/hnbgw/HNBGW_Tests.ttcn b/hnbgw/HNBGW_Tests.ttcn index d4073d1..15fc85f 100644 --- a/hnbgw/HNBGW_Tests.ttcn +++ b/hnbgw/HNBGW_Tests.ttcn @@ -606,7 +606,6 @@ /* We cannot use vc_conn.start(f_init_handler(fn, id, pars)); as we cannot have * a stand-alone 'derefers()' call, see https://www.eclipse.org/forums/index.php/t/1091364/ */ pars.hnb := g_hnb_cfg[pars.hnb_idx]; - pars.mgcp_pars := valueof(t_MgcpParams); vc_conn.start(derefers(fn)(id, pars)); } @@ -993,6 +992,7 @@ cn_idx := f_cn_idx(ps_domain, cn_nr), imsi := f_gen_imsi(imsi_suffix), ps_domain := ps_domain, + mgcp_pars := t_MgcpParams, hnb := omit, /* filled in later */ expect_separate_sccp_cr := expect_separate_sccp_cr, tx_sccp_cr_data_len := tx_sccp_cr_data_len, @@ -1276,9 +1276,13 @@ /* Expect MDCX with IP/port from RAB Assignment Response */ [] MGCP.receive(tr_MDCX(tr_SDP(pars.hnb_rtp_ip, pars.hnb_rtp_port))) -> value mgcp_cmd { var HostName mgw_rtp_ip; + var boolean exp_rua_rab_reass := false; log("MDCX1", mgcp_cmd); if (ispresent(pars.mgw_conn_ran.mgw_rtp_ip_mdcx)) { mgw_rtp_ip := pars.mgw_conn_ran.mgw_rtp_ip_mdcx; + if (pars.mgw_conn_ran.mgw_rtp_ip != pars.mgw_conn_ran.mgw_rtp_ip_mdcx) { + exp_rua_rab_reass := true; + } } else { mgw_rtp_ip := pars.mgw_conn_ran.mgw_rtp_ip; } @@ -1288,6 +1292,21 @@ { int2str(pars.rtp_payload_type) }, { valueof(ts_SDP_rtpmap(pars.rtp_payload_type, pars.rtp_sdp_format)), valueof(ts_SDP_ptime(20)) } )); var template MgcpResponse mgcp_rsp := ts_MDCX_ACK(mgcp_cmd.line.trans_id, pars.mgw_conn_ran.mgcp_connection_id, sdp); MGCP.send(valueof(mgcp_rsp)); + + /* If IP address changed, we expect HNBGW to Modify the RAB through RAB-Ass-Req: */ + if (exp_rua_rab_reass) { + var template RAB_SetupOrModifyList rab_sml; + /* Expect RAB Assignment Request with IP/port from MDCX ACK via Iuh */ + rab_sml := ts_RAB_SML(t_RAB_id(23), f_ts_RAB_TLA(pars.mgw_conn_ran.mgw_rtp_ip_mdcx), t_RAB_binding_port(pars.mgw_conn_ran.mgw_rtp_port)); + tx := valueof(ts_RANAP_RabAssReq(rab_sml)); + + f_rua_expect(tx); + /* Send back RAB Assignment Response via Iuh */ + rab_smdl := ts_RAB_SMdL(t_RAB_id(23), f_ts_RAB_TLA(pars.hnb_rtp_ip), t_RAB_binding_port(pars.hnb_rtp_port)); + tx := valueof(ts_RANAP_RabAssResp(rab_smdl)); + RUA.send(tx); + /* This shouldn't trigger any MGCP, since nothing changed on the HNB IP side. Continue below. */ + } } /* Handle CRCX for second leg of endpoint, answer with IP/port */ [] MGCP.receive(tr_CRCX(pars.mgcp_ep, tr_SDP(pars.cn_rtp_ip, pars.cn_rtp_port))) -> value mgcp_cmd { @@ -1487,6 +1506,23 @@ f_shutdown_helper(); } +/* Test case where IuUP IP address announced by HNB and updated through MDCX + * makes MGW select a new local IuUP address. HNBGW is expected to update the HNB + * through RAB-Modify-Req. */ +testcase TC_rab_assign_mgw_iuup_addr_chg() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + var template (value) TestHdlrParams pars := t_pars(3); + /* Emulate change of local IuUP IP address after rx MDCX: */ + pars.mgcp_pars.mgw_conn_ran.mgw_rtp_ip_mdcx := "127.3.2.1"; + + vc_conn := f_start_handler_with_pars(refers(f_tc_rab_assignment), pars); + vc_conn.done; + + f_shutdown_helper(); +} + /* Create an Iuh connection; send InitialUE; transceive data both directions */ friend function f_tc_ranap_bidir(charstring id, TestHdlrParams pars) runs on ConnHdlr { f_init_handler(pars); @@ -2688,6 +2724,7 @@ execute(TC_rab_release()); execute(TC_rab_assign_fail()); execute(TC_rab_assign_mgcp_to()); + execute(TC_rab_assign_mgw_iuup_addr_chg()); execute(TC_ranap_cs_mo_disconnect()); execute(TC_ranap_ps_mo_disconnect()); diff --git a/hnbgw/expected-results.xml b/hnbgw/expected-results.xml index 3b338bf..fb86108 100644 --- a/hnbgw/expected-results.xml +++ b/hnbgw/expected-results.xml @@ -13,6 +13,7 @@ <testcase classname='HNBGW_Tests' name='TC_rab_release' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_rab_assign_fail' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_rab_assign_mgcp_to' time='MASKED'/> + <testcase classname='HNBGW_Tests' name='TC_rab_assign_mgw_iuup_addr_chg' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_ranap_cs_mo_disconnect' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_ranap_ps_mo_disconnect' time='MASKED'/> <testcase classname='HNBGW_Tests' name='TC_ps_rab_assignment_without_pfcp' time='MASKED'/> -- To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/35167?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-ttcn3-hacks Gerrit-Branch: master Gerrit-Change-Id: Ibfc37118ed3a67e4ca3f417273bedba127be7639 Gerrit-Change-Number: 35167 Gerrit-PatchSet: 1 Gerrit-Owner: pespin <pespin@sysmocom.de> Gerrit-MessageType: newchange