Pau Espin Pedrol | ad4179b | 2023-10-10 19:12:26 +0200 | [diff] [blame^] | 1 | module HSS_Tests { |
| 2 | |
| 3 | import from General_Types all; |
| 4 | import from Osmocom_Types all; |
| 5 | import from Native_Functions all; |
| 6 | import from Misc_Helpers all; |
| 7 | |
| 8 | import from DIAMETER_Types all; |
| 9 | import from DIAMETER_Templates all; |
| 10 | import from DIAMETER_Emulation all; |
| 11 | |
| 12 | type record of hexstring SubscriberConfigs; |
| 13 | |
| 14 | modulepar { |
| 15 | charstring mp_hss_hostname := "127.0.0.4"; |
| 16 | integer mp_hss_port := 3868; |
| 17 | charstring mp_diam_local_hostname := "127.0.0.1"; |
| 18 | integer mp_diam_local_port := 3868; |
| 19 | charstring mp_diam_orig_realm := "localdomain"; |
| 20 | charstring mp_diam_orig_host := "mme.localdomain"; |
| 21 | charstring mp_diam_dest_realm := "localdomain"; |
| 22 | charstring mp_diam_dest_host := "hss.localdomain"; |
| 23 | SubscriberConfigs subscribers := { |
| 24 | /* Existing subscriber, ULA returns SERVICE_GRANTED */ |
| 25 | '001010000000000'H |
| 26 | }; |
| 27 | } |
| 28 | |
| 29 | /* main component, we typically have one per testcase */ |
| 30 | type component MTC_CT { |
| 31 | |
| 32 | /* emulated MME/SGSN */ |
| 33 | var DIAMETER_Emulation_CT vc_S6a; |
| 34 | port DIAMETER_PT S6a_UNIT; |
| 35 | port DIAMETEREM_PROC_PT S6a_PROC; |
| 36 | /* global test case guard timer (actual timeout value is set in f_init()) */ |
| 37 | timer T_guard; |
| 38 | } |
| 39 | |
| 40 | /* global altstep for global guard timer; */ |
| 41 | altstep as_Tguard() runs on MTC_CT { |
| 42 | [] T_guard.timeout { |
| 43 | setverdict(fail, "Timeout of T_guard"); |
| 44 | mtc.stop; |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | type component DIAMETER_ConnHdlr_CT extends DIAMETER_ConnHdlr { |
| 49 | port DIAMETER_Conn_PT DIAMETER_CLIENT; |
| 50 | port DIAMETEREM_PROC_PT DIAMETER_PROC_CLIENT; |
| 51 | } |
| 52 | |
| 53 | function f_diam_connhldr_ct_main(hexstring imsi) runs on DIAMETER_ConnHdlr_CT { |
| 54 | var DIAMETER_ConnHdlr vc_conn_unused; |
| 55 | var PDU_DIAMETER msg; |
| 56 | var UINT32 ete_id; |
| 57 | |
| 58 | f_diameter_expect_imsi(imsi); |
| 59 | |
| 60 | while (true) { |
| 61 | alt { |
| 62 | [] DIAMETER_CLIENT.receive(PDU_DIAMETER:?) -> value msg { |
| 63 | DIAMETER.send(msg); |
| 64 | } |
| 65 | [] DIAMETER.receive(PDU_DIAMETER:?) -> value msg { |
| 66 | DIAMETER_CLIENT.send(msg); |
| 67 | } |
| 68 | [] DIAMETER_PROC_CLIENT.getcall(DIAMETEREM_register_eteid:{?,?}) -> param(ete_id, vc_conn_unused) { |
| 69 | DIAMETER_PROC.call(DIAMETEREM_register_eteid:{ete_id, self}) { |
| 70 | [] DIAMETER_PROC.getreply(DIAMETEREM_register_eteid:{?,?}) {}; |
| 71 | } |
| 72 | DIAMETER_PROC_CLIENT.reply(DIAMETEREM_register_eteid:{ete_id, vc_conn_unused}); |
| 73 | } |
| 74 | } |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | /* per-session component; we typically have 1..N per testcase */ |
| 79 | type component Cli_Session_CT { |
| 80 | var SessionPars g_pars; |
| 81 | |
| 82 | port DIAMETER_Conn_PT S6a; |
| 83 | port DIAMETEREM_PROC_PT S6a_PROC; |
| 84 | } |
| 85 | function f_diam_connhldr_expect_eteid(UINT32 ete_id) runs on Cli_Session_CT { |
| 86 | S6a_PROC.call(DIAMETEREM_register_eteid:{ete_id, null}) { |
| 87 | [] S6a_PROC.getreply(DIAMETEREM_register_eteid:{?,?}) {}; |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | /* configuration data for a given Session */ |
| 92 | type record SessionPars { |
| 93 | hexstring imsi, |
| 94 | uint32_t s6a_next_hbh_id, |
| 95 | uint32_t s6a_next_ete_id |
| 96 | } |
| 97 | |
| 98 | template (value) SessionPars |
| 99 | t_SessionPars(hexstring imsi, uint32_t s6a_next_hbh_id := 1000, uint32_t s6a_next_ete_id := 22220) := { |
| 100 | imsi := imsi, |
| 101 | s6a_next_hbh_id := s6a_next_hbh_id, |
| 102 | s6a_next_ete_id := s6a_next_ete_id |
| 103 | } |
| 104 | |
| 105 | type function void_fn() runs on Cli_Session_CT; |
| 106 | |
| 107 | friend function DiameterForwardUnitdataCallback(PDU_DIAMETER msg) |
| 108 | runs on DIAMETER_Emulation_CT return template PDU_DIAMETER { |
| 109 | DIAMETER_UNIT.send(msg); |
| 110 | return omit; |
| 111 | } |
| 112 | |
| 113 | friend function f_init_diameter(charstring id) runs on MTC_CT { |
| 114 | var DIAMETEROps ops := { |
| 115 | create_cb := refers(DIAMETER_Emulation.ExpectedCreateCallback), |
| 116 | unitdata_cb := refers(DiameterForwardUnitdataCallback), |
| 117 | raw := false /* handler mode (IMSI based routing) */ |
| 118 | }; |
| 119 | var DIAMETER_conn_parameters pars; |
| 120 | |
| 121 | /* S6a setup: */ |
| 122 | pars := { |
| 123 | remote_ip := mp_hss_hostname, |
| 124 | remote_sctp_port := mp_hss_port, |
| 125 | local_ip := mp_diam_local_hostname, |
| 126 | local_sctp_port := mp_diam_local_port, |
| 127 | origin_host := mp_diam_orig_host, |
| 128 | origin_realm := mp_diam_orig_realm, |
| 129 | auth_app_id := omit, |
| 130 | vendor_app_id := c_DIAMETER_3GPP_S6_AID |
| 131 | }; |
| 132 | vc_S6a := DIAMETER_Emulation_CT.create(id); |
| 133 | map(vc_S6a:DIAMETER, system:DIAMETER_CODEC_PT); |
| 134 | connect(vc_S6a:DIAMETER_UNIT, self:S6a_UNIT); |
| 135 | connect(vc_S6a:DIAMETER_PROC, self:S6a_PROC); |
| 136 | vc_S6a.start(DIAMETER_Emulation.main(ops, pars, id)); |
| 137 | |
| 138 | f_diameter_wait_capability(S6a_UNIT); |
| 139 | /* Give some time for our emulation to get out of SUSPECT list of SUT (3 watchdong ping-pongs): |
| 140 | * RFC6733 sec 5.1 |
| 141 | * RFC3539 sec 3.4.1 [5] |
| 142 | * https://github.com/freeDiameter/freeDiameter/blob/master/libfdcore/p_psm.c#L49 |
| 143 | */ |
| 144 | f_sleep(1.0); |
| 145 | } |
| 146 | |
| 147 | private function f_init(float guard_timeout := 60.0) runs on MTC_CT { |
| 148 | T_guard.start(guard_timeout); |
| 149 | activate(as_Tguard()); |
| 150 | f_init_diameter(testcasename()); |
| 151 | } |
| 152 | |
| 153 | function f_start_handler(void_fn fn, template (omit) SessionPars pars_tmpl := omit) |
| 154 | runs on MTC_CT return Cli_Session_CT { |
| 155 | var charstring id := testcasename(); |
| 156 | var DIAMETER_ConnHdlr_CT vc_conn_s6a; |
| 157 | var Cli_Session_CT vc_conn; |
| 158 | var SessionPars pars; |
| 159 | |
| 160 | if (isvalue(pars_tmpl)) { |
| 161 | pars := valueof(pars_tmpl); |
| 162 | } else { |
| 163 | /*TODO: set default values */ |
| 164 | } |
| 165 | |
| 166 | vc_conn := Cli_Session_CT.create(id); |
| 167 | |
| 168 | vc_conn_s6a := DIAMETER_ConnHdlr_CT.create(id); |
| 169 | connect(vc_conn_s6a:DIAMETER, vc_S6a:DIAMETER_CLIENT); |
| 170 | connect(vc_conn_s6a:DIAMETER_PROC, vc_S6a:DIAMETER_PROC); |
| 171 | connect(vc_conn:S6a, vc_conn_s6a:DIAMETER_CLIENT); |
| 172 | connect(vc_conn:S6a_PROC, vc_conn_s6a:DIAMETER_PROC_CLIENT); |
| 173 | vc_conn_s6a.start(f_diam_connhldr_ct_main(pars.imsi)); |
| 174 | |
| 175 | vc_conn.start(f_handler_init(fn, pars)); |
| 176 | return vc_conn; |
| 177 | } |
| 178 | |
| 179 | private function f_handler_init(void_fn fn, SessionPars pars) |
| 180 | runs on Cli_Session_CT { |
| 181 | g_pars := valueof(pars); |
| 182 | fn.apply(); |
| 183 | } |
| 184 | |
| 185 | /* ULR + ULA against HSS */ |
| 186 | private function f_dia_ulr_ula() runs on Cli_Session_CT { |
| 187 | var octetstring sess_id := char2oct("foobar"); |
| 188 | var template (present) AVP_list sub_data; |
| 189 | var PDU_DIAMETER rx_dia; |
| 190 | var UINT32 hbh_id := int2oct(g_pars.s6a_next_hbh_id, 4); |
| 191 | var UINT32 ete_id := int2oct(g_pars.s6a_next_ete_id, 4); |
| 192 | |
| 193 | /* Unlike ULR, ULA contains no IMSI. Register ete_id in DIAMETER_Emulation, |
| 194 | * so AIA is forwarded back to us in DIAMETER port instead of MTC_CT.DIAMETER_UNIT. |
| 195 | */ |
| 196 | f_diam_connhldr_expect_eteid(ete_id); |
| 197 | |
| 198 | /* TODO: change this into a ts_DIA_ULR */ |
| 199 | S6a.send(ts_DIA_ULR(g_pars.imsi, '111F11'O, sess_id, |
| 200 | mp_diam_orig_host, mp_diam_orig_realm, |
| 201 | mp_diam_dest_realm, hbh_id, ete_id)); |
| 202 | g_pars.s6a_next_hbh_id := g_pars.s6a_next_hbh_id + 1; |
| 203 | g_pars.s6a_next_ete_id := g_pars.s6a_next_ete_id + 1; |
| 204 | |
| 205 | sub_data := superset( |
| 206 | tr_AVP_3GPP_SubscriberStatus(SERVICE_GRANTED), |
| 207 | tr_AVP_3GPP_SubscrRauTauTmr(?), |
| 208 | tr_AVP_3GPP_AMBR(?, ?), |
| 209 | tr_AVP_3GPP_ApnConfigProfile(superset( |
| 210 | tr_AVP_3GPP_ContextId(?), |
| 211 | tr_AVP_3GPP_AllApnConfigsIncl, |
| 212 | tr_AVP_3GPP_ApnConfig(?, ?, ?) |
| 213 | )) |
| 214 | ); |
| 215 | |
| 216 | alt { |
| 217 | [] S6a.receive(tr_DIA_ULA(sub_data, sess_id, ?, ?, hbh_id, ete_id)) -> value rx_dia { |
| 218 | setverdict(pass); |
| 219 | } |
| 220 | [] S6a.receive(PDU_DIAMETER:?) -> value rx_dia { |
| 221 | Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, |
| 222 | log2str("Received unexpected DIAMETER ", rx_dia)); |
| 223 | } |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | /* create a session, expect it to succeed */ |
| 228 | private function f_TC_ulr_ula() runs on Cli_Session_CT { |
| 229 | f_dia_ulr_ula(); |
| 230 | setverdict(pass); |
| 231 | } |
| 232 | testcase TC_ulr_ula() runs on MTC_CT { |
| 233 | var Cli_Session_CT vc_conn; |
| 234 | var SessionPars pars := valueof(t_SessionPars(subscribers[0])); |
| 235 | f_init(); |
| 236 | vc_conn := f_start_handler(refers(f_TC_ulr_ula), pars); |
| 237 | vc_conn.done; |
| 238 | } |
| 239 | |
| 240 | |
| 241 | control { |
| 242 | execute( TC_ulr_ula() ); |
| 243 | } |
| 244 | |
| 245 | |
| 246 | } |