2023-10-10 17:12:26 +00:00
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module HSS_Tests {
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import from General_Types all;
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import from Osmocom_Types all;
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import from Native_Functions all;
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import from Misc_Helpers all;
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import from DIAMETER_Types all;
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import from DIAMETER_Templates all;
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2023-12-21 15:10:12 +00:00
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import from DIAMETER_ts29_272_Templates all;
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2023-10-10 17:12:26 +00:00
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import from DIAMETER_Emulation all;
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type record of hexstring SubscriberConfigs;
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modulepar {
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charstring mp_hss_hostname := "127.0.0.4";
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integer mp_hss_port := 3868;
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charstring mp_diam_local_hostname := "127.0.0.1";
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integer mp_diam_local_port := 3868;
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charstring mp_diam_orig_realm := "localdomain";
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charstring mp_diam_orig_host := "mme.localdomain";
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charstring mp_diam_dest_realm := "localdomain";
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charstring mp_diam_dest_host := "hss.localdomain";
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SubscriberConfigs subscribers := {
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/* Existing subscriber, ULA returns SERVICE_GRANTED */
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2023-10-11 15:49:39 +00:00
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'001010000000000'H,
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'001010000000001'H
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2023-10-10 17:12:26 +00:00
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};
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}
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/* main component, we typically have one per testcase */
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type component MTC_CT {
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/* emulated MME/SGSN */
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var DIAMETER_Emulation_CT vc_S6a;
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port DIAMETER_PT S6a_UNIT;
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port DIAMETEREM_PROC_PT S6a_PROC;
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/* global test case guard timer (actual timeout value is set in f_init()) */
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timer T_guard;
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}
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/* global altstep for global guard timer; */
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altstep as_Tguard() runs on MTC_CT {
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[] T_guard.timeout {
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setverdict(fail, "Timeout of T_guard");
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mtc.stop;
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}
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}
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type component DIAMETER_ConnHdlr_CT extends DIAMETER_ConnHdlr {
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port DIAMETER_Conn_PT DIAMETER_CLIENT;
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port DIAMETEREM_PROC_PT DIAMETER_PROC_CLIENT;
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}
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function f_diam_connhldr_ct_main(hexstring imsi) runs on DIAMETER_ConnHdlr_CT {
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var DIAMETER_ConnHdlr vc_conn_unused;
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var PDU_DIAMETER msg;
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var UINT32 ete_id;
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f_diameter_expect_imsi(imsi);
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while (true) {
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alt {
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[] DIAMETER_CLIENT.receive(PDU_DIAMETER:?) -> value msg {
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DIAMETER.send(msg);
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}
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[] DIAMETER.receive(PDU_DIAMETER:?) -> value msg {
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DIAMETER_CLIENT.send(msg);
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}
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[] DIAMETER_PROC_CLIENT.getcall(DIAMETEREM_register_eteid:{?,?}) -> param(ete_id, vc_conn_unused) {
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DIAMETER_PROC.call(DIAMETEREM_register_eteid:{ete_id, self}) {
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[] DIAMETER_PROC.getreply(DIAMETEREM_register_eteid:{?,?}) {};
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}
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DIAMETER_PROC_CLIENT.reply(DIAMETEREM_register_eteid:{ete_id, vc_conn_unused});
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}
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}
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}
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}
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/* per-session component; we typically have 1..N per testcase */
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type component Cli_Session_CT {
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var SessionPars g_pars;
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port DIAMETER_Conn_PT S6a;
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port DIAMETEREM_PROC_PT S6a_PROC;
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}
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function f_diam_connhldr_expect_eteid(UINT32 ete_id) runs on Cli_Session_CT {
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S6a_PROC.call(DIAMETEREM_register_eteid:{ete_id, null}) {
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[] S6a_PROC.getreply(DIAMETEREM_register_eteid:{?,?}) {};
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}
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}
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/* configuration data for a given Session */
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type record SessionPars {
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hexstring imsi,
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uint32_t s6a_next_hbh_id,
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uint32_t s6a_next_ete_id
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}
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template (value) SessionPars
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t_SessionPars(hexstring imsi, uint32_t s6a_next_hbh_id := 1000, uint32_t s6a_next_ete_id := 22220) := {
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imsi := imsi,
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s6a_next_hbh_id := s6a_next_hbh_id,
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s6a_next_ete_id := s6a_next_ete_id
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}
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type function void_fn() runs on Cli_Session_CT;
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friend function DiameterForwardUnitdataCallback(PDU_DIAMETER msg)
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runs on DIAMETER_Emulation_CT return template PDU_DIAMETER {
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DIAMETER_UNIT.send(msg);
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return omit;
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}
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friend function f_init_diameter(charstring id) runs on MTC_CT {
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var DIAMETEROps ops := {
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create_cb := refers(DIAMETER_Emulation.ExpectedCreateCallback),
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unitdata_cb := refers(DiameterForwardUnitdataCallback),
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raw := false /* handler mode (IMSI based routing) */
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};
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var DIAMETER_conn_parameters pars;
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/* S6a setup: */
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pars := {
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remote_ip := mp_hss_hostname,
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remote_sctp_port := mp_hss_port,
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local_ip := mp_diam_local_hostname,
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local_sctp_port := mp_diam_local_port,
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origin_host := mp_diam_orig_host,
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origin_realm := mp_diam_orig_realm,
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auth_app_id := omit,
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vendor_app_id := c_DIAMETER_3GPP_S6_AID
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};
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vc_S6a := DIAMETER_Emulation_CT.create(id);
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map(vc_S6a:DIAMETER, system:DIAMETER_CODEC_PT);
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connect(vc_S6a:DIAMETER_UNIT, self:S6a_UNIT);
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connect(vc_S6a:DIAMETER_PROC, self:S6a_PROC);
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vc_S6a.start(DIAMETER_Emulation.main(ops, pars, id));
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f_diameter_wait_capability(S6a_UNIT);
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/* Give some time for our emulation to get out of SUSPECT list of SUT (3 watchdong ping-pongs):
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* RFC6733 sec 5.1
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* RFC3539 sec 3.4.1 [5]
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* https://github.com/freeDiameter/freeDiameter/blob/master/libfdcore/p_psm.c#L49
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*/
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f_sleep(1.0);
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}
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private function f_init(float guard_timeout := 60.0) runs on MTC_CT {
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T_guard.start(guard_timeout);
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activate(as_Tguard());
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f_init_diameter(testcasename());
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}
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function f_start_handler(void_fn fn, template (omit) SessionPars pars_tmpl := omit)
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runs on MTC_CT return Cli_Session_CT {
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var charstring id := testcasename();
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var DIAMETER_ConnHdlr_CT vc_conn_s6a;
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var Cli_Session_CT vc_conn;
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var SessionPars pars;
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if (isvalue(pars_tmpl)) {
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pars := valueof(pars_tmpl);
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} else {
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/*TODO: set default values */
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}
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vc_conn := Cli_Session_CT.create(id);
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vc_conn_s6a := DIAMETER_ConnHdlr_CT.create(id);
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connect(vc_conn_s6a:DIAMETER, vc_S6a:DIAMETER_CLIENT);
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connect(vc_conn_s6a:DIAMETER_PROC, vc_S6a:DIAMETER_PROC);
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connect(vc_conn:S6a, vc_conn_s6a:DIAMETER_CLIENT);
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connect(vc_conn:S6a_PROC, vc_conn_s6a:DIAMETER_PROC_CLIENT);
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vc_conn_s6a.start(f_diam_connhldr_ct_main(pars.imsi));
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vc_conn.start(f_handler_init(fn, pars));
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return vc_conn;
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}
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private function f_handler_init(void_fn fn, SessionPars pars)
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runs on Cli_Session_CT {
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g_pars := valueof(pars);
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fn.apply();
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}
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/* ULR + ULA against HSS */
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2023-10-11 15:49:39 +00:00
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private function f_dia_ulr_ula(template (present) AVP_list ula_sub_data) runs on Cli_Session_CT {
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2023-10-10 17:12:26 +00:00
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var octetstring sess_id := char2oct("foobar");
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var PDU_DIAMETER rx_dia;
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var UINT32 hbh_id := int2oct(g_pars.s6a_next_hbh_id, 4);
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var UINT32 ete_id := int2oct(g_pars.s6a_next_ete_id, 4);
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/* Unlike ULR, ULA contains no IMSI. Register ete_id in DIAMETER_Emulation,
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* so AIA is forwarded back to us in DIAMETER port instead of MTC_CT.DIAMETER_UNIT.
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*/
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f_diam_connhldr_expect_eteid(ete_id);
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/* TODO: change this into a ts_DIA_ULR */
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S6a.send(ts_DIA_ULR(g_pars.imsi, '111F11'O, sess_id,
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mp_diam_orig_host, mp_diam_orig_realm,
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mp_diam_dest_realm, hbh_id, ete_id));
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g_pars.s6a_next_hbh_id := g_pars.s6a_next_hbh_id + 1;
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g_pars.s6a_next_ete_id := g_pars.s6a_next_ete_id + 1;
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alt {
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2023-10-11 15:49:39 +00:00
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[] S6a.receive(tr_DIA_ULA(ula_sub_data, sess_id, ?, ?, hbh_id, ete_id)) -> value rx_dia {
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2023-10-10 17:12:26 +00:00
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setverdict(pass);
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}
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[] S6a.receive(PDU_DIAMETER:?) -> value rx_dia {
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Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
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log2str("Received unexpected DIAMETER ", rx_dia));
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}
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}
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}
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/* create a session, expect it to succeed */
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private function f_TC_ulr_ula() runs on Cli_Session_CT {
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2023-10-11 15:49:39 +00:00
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var template (present) AVP_list sub_data := superset(
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tr_AVP_3GPP_SubscriberStatus(SERVICE_GRANTED),
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tr_AVP_3GPP_SubscrRauTauTmr(?),
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tr_AVP_3GPP_AMBR(?, ?),
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tr_AVP_3GPP_ApnConfigProfile(superset(
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tr_AVP_3GPP_ContextId(?),
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tr_AVP_3GPP_AllApnConfigsIncl,
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tr_AVP_3GPP_ApnConfig(?, ?, ?)
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))
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);
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f_dia_ulr_ula(sub_data);
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2023-10-10 17:12:26 +00:00
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setverdict(pass);
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}
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testcase TC_ulr_ula() runs on MTC_CT {
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var Cli_Session_CT vc_conn;
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var SessionPars pars := valueof(t_SessionPars(subscribers[0]));
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f_init();
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vc_conn := f_start_handler(refers(f_TC_ulr_ula), pars);
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vc_conn.done;
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}
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2023-10-11 15:49:39 +00:00
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/* Same as TC_ulr_ula, but done on a subscriber configured with
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Subscriber-Status=1 (OPERATOR_DETERMINED_BARRING) and
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Operator-Determined-Barring=7. */
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private function f_TC_ulr_ula_subscr_op_det_barring_7() runs on Cli_Session_CT {
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var template (present) AVP_list sub_data := superset(
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tr_AVP_3GPP_SubscriberStatus(OPERATOR_DETERMINED_BARRING),
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tr_AVP_3GPP_OperatorDeterminedBarring(7),
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tr_AVP_3GPP_SubscrRauTauTmr(?),
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tr_AVP_3GPP_AMBR(?, ?),
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tr_AVP_3GPP_ApnConfigProfile(superset(
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tr_AVP_3GPP_ContextId(?),
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tr_AVP_3GPP_AllApnConfigsIncl,
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tr_AVP_3GPP_ApnConfig(?, ?, ?)
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))
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);
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f_dia_ulr_ula(sub_data);
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setverdict(pass);
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}
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testcase TC_ulr_ula_subscr_op_det_barring_7() runs on MTC_CT {
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var Cli_Session_CT vc_conn;
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var SessionPars pars := valueof(t_SessionPars(subscribers[1]));
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f_init();
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vc_conn := f_start_handler(refers(f_TC_ulr_ula_subscr_op_det_barring_7), pars);
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vc_conn.done;
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}
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2023-10-10 17:12:26 +00:00
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control {
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execute( TC_ulr_ula() );
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2023-10-11 15:49:39 +00:00
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execute( TC_ulr_ula_subscr_op_det_barring_7() );
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2023-10-10 17:12:26 +00:00
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}
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}
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