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Diffstat (limited to 'hnbgw/HNBGW_Tests.ttcn')
| -rw-r--r-- | hnbgw/HNBGW_Tests.ttcn | 3046 |
1 files changed, 3046 insertions, 0 deletions
diff --git a/hnbgw/HNBGW_Tests.ttcn b/hnbgw/HNBGW_Tests.ttcn new file mode 100644 index 00000000..86a4f3ff --- /dev/null +++ b/hnbgw/HNBGW_Tests.ttcn @@ -0,0 +1,3046 @@ +module HNBGW_Tests { + +/* Integration Tests for OsmoHNBGW + * (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de> + * All rights reserved. + * + * Released under the terms of GNU General Public License, Version 2 or + * (at your option) any later version. + * + * SPDX-License-Identifier: GPL-2.0-or-later + * + * This test suite tests OsmoHNBGW while emulating the hNodeB as well as MSC, SGSN, MGW + * See README for more details. + */ + +import from Misc_Helpers all; +import from General_Types all; +import from GSM_Types all; +import from Osmocom_Types all; +import from IPL4asp_Types all; +import from Native_Functions all; + +import from Osmocom_CTRL_Functions all; +import from Osmocom_CTRL_Types all; +import from Osmocom_CTRL_Adapter all; + +import from StatsD_Types all; +import from StatsD_CodecPort all; +import from StatsD_CodecPort_CtrlFunct all; +import from StatsD_Checker all; + +import from Osmocom_VTY_Functions all; +import from TELNETasp_PortType all; + +import from HNBAP_Templates all; +import from HNBAP_IEs all; +import from HNBAP_PDU_Descriptions all; + +import from RUA_IEs all; +import from RUA_Templates all; +import from RUA_Emulation all; + +import from Iuh_Emulation all; + +import from RANAP_Types all; +import from RANAP_PDU_Descriptions all; +import from RANAP_PDU_Contents all; +import from RANAP_IEs all; +import from RANAP_Templates all; +import from RANAP_CodecPort all; + +import from RAN_Adapter all; +import from RAN_Emulation all; + +import from MGCP_Emulation all; +import from MGCP_Types all; +import from MGCP_Templates all; +import from MGCP_CodecPort all; +import from SDP_Types all; +import from SDP_Templates all; + +import from PFCP_Types all; +import from PFCP_Emulation all; +import from PFCP_Templates all; +import from PFCP_CodecPort all; + +import from TCCConversion_Functions all; +import from MobileL3_Types all; +import from MobileL3_CommonIE_Types all; +import from MobileL3_GMM_SM_Types all; +import from L3_Templates all; +import from L3_Common all; + +import from SCCPasp_Types all; + +const integer NUM_MSC := 4; +const integer NUM_SGSN := 4; + +const integer FIRST_MSC_IDX := 0; +const integer FIRST_SGSN_IDX := NUM_MSC; + +modulepar { + /* IP address at which the HNodeB can be reached */ + charstring mp_hnodeb_ip := "127.0.0.1"; + integer mp_hnodeb_port := -1; + + /* IP address at which the test binds */ + charstring mp_hnbgw_ip := "127.0.0.1"; + integer mp_hnbgw_iuh_port := 29169; + integer mp_hnbgw_ctrl_port := 4262; + + /* Our emulated StatsD server: */ + charstring mp_local_statsd_ip := "127.0.0.1"; + integer mp_local_statsd_port := 8125; + + charstring mp_mgw_ip := "127.0.0.1"; + integer mp_mgw_port := 2427; + + RAN_Configurations mp_cn_cfg := { + /* MSCs (NUM_MSC entries) */ + { + transport := RANAP_TRANSPORT_IuCS, + sccp_service_type := "mtp3_itu", + sctp_addr := { 23905, "127.0.0.1", 2905, "127.0.0.1" }, + own_pc := 188, /* 0.23.4 first MSC emulation */ + own_ssn := 142, + peer_pc := 189, /* 0.23.5 osmo-hnbgw */ + peer_ssn := 142, + sio := '83'O, + rctx := 1 + }, + { + transport := RANAP_TRANSPORT_IuCS, + sccp_service_type := "mtp3_itu", + sctp_addr := { 23907, "127.0.0.1", 2905, "127.0.0.1" }, + own_pc := 2, /* 0.0.2 second MSC emulation */ + own_ssn := 142, + peer_pc := 189, /* 0.23.5 osmo-hnbgw */ + peer_ssn := 142, + sio := '83'O, + rctx := 3 + }, + { + transport := RANAP_TRANSPORT_IuCS, + sccp_service_type := "mtp3_itu", + sctp_addr := { 23909, "127.0.0.1", 2905, "127.0.0.1" }, + own_pc := 3, /* 0.0.3 third MSC emulation */ + own_ssn := 142, + peer_pc := 189, /* 0.23.5 osmo-hnbgw */ + peer_ssn := 142, + sio := '83'O, + rctx := 5 + }, + { + transport := RANAP_TRANSPORT_IuCS, + sccp_service_type := "mtp3_itu", + sctp_addr := { 23911, "127.0.0.1", 2905, "127.0.0.1" }, + own_pc := 4, /* 0.0.4 fourth MSC emulation */ + own_ssn := 142, + peer_pc := 189, /* 0.23.5 osmo-hnbgw */ + peer_ssn := 142, + sio := '83'O, + rctx := 7 + }, + + /* SGSNs (NUM_SGSN entries) */ + { + transport := RANAP_TRANSPORT_IuCS, + sccp_service_type := "mtp3_itu", + sctp_addr := { /* local */ 23906, "127.0.0.1", /* remote */ 2905, "127.0.0.1" }, + own_pc := 185, /* 0.23.1 first SGSN emulation */ + own_ssn := 142, + peer_pc := 189, /* 2237, 1.23.5 osmo-hnbgw */ + peer_ssn := 142, + sio := '83'O, + rctx := 2 + }, + { + transport := RANAP_TRANSPORT_IuCS, + sccp_service_type := "mtp3_itu", + sctp_addr := { /* local */ 23908, "127.0.0.1", /* remote */ 2905, "127.0.0.1" }, + own_pc := 10, /* 0.1.2 second SGSN emulation */ + own_ssn := 142, + peer_pc := 189, /* 2237, 1.23.5 osmo-hnbgw */ + peer_ssn := 142, + sio := '83'O, + rctx := 4 + }, + { + transport := RANAP_TRANSPORT_IuCS, + sccp_service_type := "mtp3_itu", + sctp_addr := { /* local */ 23910, "127.0.0.1", /* remote */ 2905, "127.0.0.1" }, + own_pc := 11, /* 0.1.3 third SGSN emulation */ + own_ssn := 142, + peer_pc := 189, /* 2237, 1.23.5 osmo-hnbgw */ + peer_ssn := 142, + sio := '83'O, + rctx := 6 + }, + { + transport := RANAP_TRANSPORT_IuCS, + sccp_service_type := "mtp3_itu", + sctp_addr := { /* local */ 23912, "127.0.0.1", /* remote */ 2905, "127.0.0.1" }, + own_pc := 12, /* 0.1.4 fourth SGSN emulation */ + own_ssn := 142, + peer_pc := 189, /* 2237, 1.23.5 osmo-hnbgw */ + peer_ssn := 142, + sio := '83'O, + rctx := 8 + } + }; + + boolean mp_enable_pfcp_tests := false; + + /* IP address at which we listen for PFCP to emulate a UPF in ttcn3 */ + charstring mp_pfcp_ip_local := "127.0.0.1"; + + /* IP address from which the SUT (osmo-hnbgw) sends PFCP requests, and to which the ttcn3 UPF emulation sends + * PFCP responses. */ + charstring mp_pfcp_ip_remote := "127.0.0.2"; + + boolean mp_validate_talloc_asn1 := true; + + /* The X31 timer configured at osmo-hnbgw (seconds). This provided an idea on + * minimum time the test must wait to consider this timer triggered */ + integer mp_hnbgw_timer_x31 := 5; +} + +function MSC_UnitdataCallback(RANAP_PDU ranap) runs on RAN_Emulation_CT return template RANAP_PDU { + // TODO: Actually implement unitdata handling + return omit; +} + +const RanOps MSC_RanOps := { + ranap_create_cb := refers(RAN_Emulation.RanapExpectedCreateCallback), + ranap_unitdata_cb := refers(MSC_UnitdataCallback), + ps_domain := false, + decode_dtap := false, + role_ms := false, + protocol := RAN_PROTOCOL_RANAP, + transport := RANAP_TRANSPORT_IuCS, + use_osmux := false, + bssap_reset_retries := 1, + sccp_addr_local := omit, + sccp_addr_peer := omit +} + +type record MgwResponse { + integer resp, + HostName mgw_rtp_ip, + /* if set, used after first received MDCX: */ + HostName mgw_rtp_ip_mdcx optional, + PortNumber mgw_rtp_port, + MgcpConnectionId mgcp_connection_id +} +type record MgcpParameters { + integer got_crcx_count, + integer got_dlcx_count, + MgcpCallId mgcp_call_id optional, + MgcpEndpoint mgcp_ep, + MgwResponse mgw_conn_ran, + MgwResponse mgw_conn_cn, + uint7_t rtp_payload_type, + charstring rtp_sdp_format, + HostName hnb_rtp_ip, + PortNumber hnb_rtp_port, + HostName cn_rtp_ip, + PortNumber cn_rtp_port, + boolean use_osmux, + integer got_osmux_count +} + +template (value) MgcpParameters t_MgcpParams := { + got_crcx_count := 0, + got_dlcx_count := 0, + mgcp_call_id := omit, + mgcp_ep := "rtpbridge/1@mgw", + mgw_conn_ran := { + resp := 1, + mgw_rtp_ip := "127.1.2.1", + mgw_rtp_ip_mdcx := omit, + mgw_rtp_port := 10000, + mgcp_connection_id := '11111'H + }, + mgw_conn_cn := { + resp := 1, + mgw_rtp_ip := "127.1.2.2", + mgw_rtp_ip_mdcx := omit, + mgw_rtp_port := 20000, + mgcp_connection_id := '22222'H + }, + rtp_payload_type := 112, + rtp_sdp_format := "VND.3GPP.IUFP", + hnb_rtp_ip := "127.1.1.1", + hnb_rtp_port := 10001, + cn_rtp_ip := "127.1.3.1", + cn_rtp_port := 20001, + use_osmux := false, + got_osmux_count := 0 +} + +type record TestHdlrParams { + integer hnb_idx, + /* cn_idx indicates which CN link from g_cn[] to connect to the test component. + * See also f_cn_idx(). */ + integer cn_idx, + hexstring imsi, + boolean ps_domain, + MgcpParameters mgcp_pars optional, + HnbConfig hnb optional, + boolean expect_separate_sccp_cr, + integer tx_sccp_cr_data_len, + charstring pfcp_local_addr, + octetstring nas_pdu optional, + /* local and remote SCCP addresses, used in TC_mscpool_paging_* */ + SCCP_PAR_Address sccp_addr_msc optional, + SCCP_PAR_Address sccp_addr_hnbgw optional, + /* RAB release cause */ + RANAP_IEs.Cause rab_rel_cause +} + +/* We extend: + * RUA_ConnHdlr (for the Iuh side, emulating the HNB) + * RAN_ConnHdlr (for the Iu side, emulating the MSC) + * MGCP_ConnHdlr (for the MGCP side, emulating the MGW) + * StatsD_ConnHdlr (for the statsd interface, verifying counters) + */ +type component ConnHdlr extends RAN_ConnHdlr, MGCP_ConnHdlr, RUA_ConnHdlr, PFCP_ConnHdlr, StatsD_ConnHdlr { + var integer g_sccp_conn_id; + var TestHdlrParams g_pars; + timer g_Tguard; + + port TELNETasp_PT HNBGWVTY; +} + + +const MGCPOps MSC_MGCPOps := { + create_cb := refers(MGCP_Emulation.ExpectedCreateCallback), + unitdata_cb := refers(MGCP_Emulation.DummyUnitdataCallback) +} + +function f_create_ranap_exp(octetstring l3_enc) runs on ConnHdlr { + BSSAP_PROC.call(RAN_register:{l3_enc, self}) { + [] BSSAP_PROC.getreply(RAN_register:{?, ?}) {}; + } +} + + +const integer NUM_HNB := 2; + +type record HnbConfig { + LocationAreaIdentification lai, + integer sac +} + +type component test_CT extends CTRL_Adapter_CT, StatsD_Checker_CT { + var boolean g_initialized := false; + + /********************* Iu side */ + var RAN_Adapter g_cn[NUM_MSC + NUM_SGSN]; + + /********************* Iuh side */ + var HnbConfig g_hnb_cfg[NUM_HNB]; + var Iuh_Emulation_CT vc_Iuh[NUM_HNB]; + var RUA_Emulation_CT vc_RUA[NUM_HNB]; + port HNBAP_PT HNBAP[NUM_HNB]; + /* Number of HNBs to be used/started by the test */ + var integer g_num_hnbs := NUM_HNB; + + var MGCP_Emulation_CT vc_MGCP; + port TELNETasp_PT HNBGWVTY; + var StatsD_Checker_CT vc_STATSD; + var PFCP_Emulation_CT vc_PFCP; + /* global test case guard timer (actual timeout value is set in f_init()) */ + timer T_guard := 30.0; + + /* The cnlink type 'msc' or 'sgsn', to be used in CTRL commands to obtain counters */ + var charstring g_ctr_cn_node_name; + /* Counter state */ + var CounterNameValsList g_ctr_cn; + var CounterNameValsList g_ctr_hnb; +} + +/* global altstep for global guard timer; */ +altstep as_Tguard() runs on test_CT { + [] T_guard.timeout { + setverdict(fail, "Timeout of T_guard"); + mtc.stop; + } +} + +function f_init_vty(charstring id := "foo") runs on test_CT { + if (HNBGWVTY.checkstate("Mapped")) { + /* skip initialization if already executed once */ + return; + } + map(self:HNBGWVTY, system:HNBGWVTY); + f_vty_set_prompts(HNBGWVTY); + f_vty_transceive(HNBGWVTY, "enable"); +} + +function f_init_mgcp(charstring id) runs on test_CT { + id := id & "-MGCP"; + var MGCPOps ops := { + create_cb := refers(MGCP_Emulation.ExpectedCreateCallback), + unitdata_cb := refers(MGCP_Emulation.DummyUnitdataCallback) + } + var MGCP_conn_parameters pars := { + callagent_ip := mp_hnbgw_ip, + callagent_udp_port := -1, + mgw_ip := mp_mgw_ip, + mgw_udp_port := mp_mgw_port, + multi_conn_mode := false + } + + vc_MGCP := MGCP_Emulation_CT.create(id); + map(vc_MGCP:MGCP, system:MGCP_CODEC_PT); + vc_MGCP.start(MGCP_Emulation.main(ops, pars, id)); +} + +function f_init_pfcp(charstring id) runs on test_CT { + id := id & "-PFCP"; + + var PFCP_Emulation_Cfg pfcp_cfg := { + pfcp_bind_ip := mp_pfcp_ip_local, + pfcp_bind_port := PFCP_PORT, + pfcp_remote_ip := mp_pfcp_ip_remote, + pfcp_remote_port := PFCP_PORT, + role := UPF + }; + + vc_PFCP := PFCP_Emulation_CT.create(id) alive; + vc_PFCP.start(PFCP_Emulation.main(pfcp_cfg)); +} + +function f_init_hnodeb(charstring id, integer hnb_idx, RuaOps rua_ops) runs on test_CT { + id := id & "-Iuh" & int2str(hnb_idx); + + /* Iuh lower layer (RUA/HNBAP demux) */ + var Iuh_conn_parameters iuh_pars; + iuh_pars.remote_ip := mp_hnbgw_ip; + iuh_pars.remote_sctp_port := mp_hnbgw_iuh_port; + iuh_pars.local_ip := mp_hnodeb_ip; + iuh_pars.local_sctp_port := mp_hnodeb_port + hnb_idx; + vc_Iuh[hnb_idx] := Iuh_Emulation_CT.create(id); + connect(self:HNBAP[hnb_idx], vc_Iuh[hnb_idx]:HNBAP); + + vc_RUA[hnb_idx] := RUA_Emulation_CT.create(id & "-RUA"); + connect(vc_RUA[hnb_idx]:RUA, vc_Iuh[hnb_idx]:RUA); + + /* Start Iuh side components */ + vc_Iuh[hnb_idx].start(Iuh_Emulation.main(iuh_pars, id)); + vc_RUA[hnb_idx].start(RUA_Emulation.main(rua_ops, id & "-RUA")); +} + +function f_drop_hnodeb(integer hnb_idx) runs on test_CT +{ + + vc_Iuh[hnb_idx].stop; + vc_RUA[hnb_idx].stop; + disconnect(self:HNBAP[hnb_idx], vc_Iuh[hnb_idx]:HNBAP); + disconnect(vc_RUA[hnb_idx]:RUA, vc_Iuh[hnb_idx]:RUA); +} + +private type record of boolean BooleanList; + +private function f_vty_cnlink_allow_attach(TELNETasp_PT pt, boolean ps_domain, BooleanList allow_attach_list) +{ + var charstring config := f_vty_transceive_ret(pt, "show running-config"); + + var charstring msc_sgsn; + if (ps_domain) { + msc_sgsn := "sgsn"; + } else { + msc_sgsn := "msc"; + } + + f_vty_enter_config(pt); + for (var integer cn_nr := 0; cn_nr < sizeof(allow_attach_list); cn_nr := cn_nr+1) { + if (f_strstr(config, "\n" & msc_sgsn & " " & int2str(cn_nr) & "\n") < 0) { + /* There is no 'msc N' for this cn_nr in the running config, so don't create an empty cn by + * stepping into that config node. */ + log(msc_sgsn, cn_nr, " is not configured, skipping"); + continue; + } + f_vty_transceive(pt, msc_sgsn & " " & int2str(cn_nr)); + + if (allow_attach_list[cn_nr]) { + /* strict := false: ignore if osmo-hnbgw does not support this config option (latest build) */ + f_vty_transceive(pt, "allow-attach", strict := false); + } else { + f_vty_transceive(pt, "no allow-attach", strict := false); + } + f_vty_transceive(pt, "exit"); + } + f_vty_transceive(pt, "exit"); +} + +/* Start RAN adapter for CN link N. + * e.g. link for 'msc 0' = (ps_domain := false, cn_nr := 0) + * link for 'sgsn 3' = (ps_domain := true, cn_nr := 3) + */ +private function f_cn_nr_init(boolean ps_domain, integer cn_nr) runs on test_CT { + var RanOps ranops := MSC_RanOps; + ranops.ps_domain := ps_domain; + var integer cn_idx := f_cn_idx(ps_domain, cn_nr); + var charstring msc_sgsn := "msc"; + if (ps_domain) { + msc_sgsn := "sgsn"; + } + f_ran_adapter_init(g_cn[cn_idx], mp_cn_cfg[cn_idx], "HNBGW_Test." & msc_sgsn & int2str(cn_nr), ranops); + f_ran_adapter_start(g_cn[cn_idx]); +} + +private function f_cn_idx_disconnect(integer cn_idx) runs on test_CT { + f_ran_adapter_cleanup(g_cn[cn_idx]); +} + +/* global initialization function */ +function f_init(charstring id := "HNBGW", float guard_timeout := 30.0, integer nr_msc := 1, integer nr_sgsn := 1, + boolean start_hnb := true) runs on test_CT { + + T_guard.start(guard_timeout); + activate(as_Tguard()); + + f_init_statsd("VirtHNBGW", vc_STATSD, mp_local_statsd_ip, mp_local_statsd_port); + + /* RUA/RANAP emulation on top of lower-layer Iuh */ + var RuaOps rua_ops := { + create_cb := refers(IuhRanapCreateCallback), + unitdata_cb := refers(IuhRanapUnitdataCallback) + }; + for (var integer i := 0; i < g_num_hnbs; i := i+1) { + g_hnb_cfg[i] := { + lai := { + mcc_mnc := '00F110'H, + lac := 2342 + i + }, + sac := 55 + }; + f_init_hnodeb(testcasename(), i, rua_ops); + } + + f_init_vty("VirtHNBGW"); + f_ipa_ctrl_start_client(mp_hnbgw_ip, mp_hnbgw_ctrl_port); + + /* MSC emulation */ + + /* Make sure each MSC's internal state is "DISCONNECTED" at first */ + for (var integer i := 0; i < NUM_MSC; i := i + 1) { + f_vty_transceive(HNBGWVTY, "msc " & int2str(i) & " ranap reset", strict := false); + } + + var BooleanList allow_attach := { false, false, false, false }; + for (var integer i := 0; i < nr_msc; i := i + 1) { + var integer cn_idx := FIRST_MSC_IDX + i; + allow_attach[i] := true; + f_cn_nr_init(ps_domain := false, cn_nr := i); + } + /* start the test with exactly all enabled MSCs allowed to attach */ + f_vty_cnlink_allow_attach(HNBGWVTY, false, allow_attach); + + /* SGSN emulation */ + + /* Make sure each SGSN's internal state is "DISCONNECTED" at first */ + for (var integer i := 0; i < NUM_SGSN; i := i + 1) { + f_vty_transceive(HNBGWVTY, "sgsn " & int2str(i) & " ranap reset", strict := false); + } + + allow_attach := { false, false, false, false }; + for (var integer i := 0; i < nr_sgsn; i := i + 1) { + var integer cn_idx := FIRST_SGSN_IDX + i; + allow_attach[i] := true; + f_cn_nr_init(ps_domain := true, cn_nr := i); + } + f_vty_cnlink_allow_attach(HNBGWVTY, true, allow_attach); + + f_init_mgcp(id); + + if (start_hnb) { + f_start_hnbs(); + } + + /* Sometimes, the RUA InitialUE-Message from a test happens too quickly, before the RANAP RESET from + * RAN_Emulation is through, after above f_cn_nr_init(). In the pcap it seems to be a matter of 50 ms. Give some + * grace. */ + f_sleep(1.0); +} + +friend function f_shutdown_helper() runs on test_CT { + if (mp_validate_talloc_asn1) { + f_verify_talloc_bytes(HNBGWVTY, {"asn1_context"}, 1); + } + + all component.stop; + setverdict(pass); + mtc.stop; +} + +/* helper function to start all of the simulated hNodeBs */ +function f_start_hnbs() runs on test_CT { + for (var integer i:= 0; i < g_num_hnbs; i := i+1) { + f_hnbap_hnb_register(i, i); + } +} + +/*********************************************************************** + * code running in test_CT, preparing start of per-UE ConnHdlr + ***********************************************************************/ + +/* inbound RUA connection establishment on Iuh side */ +function IuhRanapCreateCallback(ContextId context_id, RUA_IEs.CN_DomainIndicator domain, charstring id) +runs on RUA_Emulation_CT return RUA_ConnHdlr { + log("CreateCallback"); + return null; +} + +/* inbound RUA connectionless data on Iuh side */ +function IuhRanapUnitdataCallback(RANAP_PDU ranap) +runs on RUA_Emulation_CT return template RANAP_PDU { + log("UnitdataCallback"); + return omit; +} + +private function f_start_handler_create(TestHdlrParams pars) runs on test_CT return ConnHdlr { + var ConnHdlr vc_conn; + var charstring id := testcasename() & int2str(pars.hnb_idx); + + vc_conn := ConnHdlr.create(id); + + /* Iuh RUA part */ + connect(vc_conn:RUA, vc_RUA[pars.hnb_idx]:CLIENT); + + /* MSC or SGSN */ + connect(vc_conn:BSSAP, g_cn[pars.cn_idx].vc_RAN:CLIENT); + connect(vc_conn:BSSAP_PROC, g_cn[pars.cn_idx].vc_RAN:PROC); + + /* MGCP part */ + connect(vc_conn:MGCP, vc_MGCP:MGCP_CLIENT); + connect(vc_conn:MGCP_PROC, vc_MGCP:MGCP_PROC); + + connect(vc_conn:STATSD_PROC, vc_STATSD:STATSD_PROC); + + if (isbound(vc_PFCP)) { + connect(vc_conn:PFCP, vc_PFCP:CLIENT); + connect(vc_conn:PFCP_PROC, vc_PFCP:CLIENT_PROC); + } + + return vc_conn; +} + +private function f_start_handler_run(ConnHdlr vc_conn, void_fn fn, TestHdlrParams pars) runs on test_CT { + var charstring id := testcasename(); // & int2str(pars.ran_idx); + /* 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]; + vc_conn.start(derefers(fn)(id, pars)); +} + +function f_start_handler_with_pars(void_fn fn, template (value) TestHdlrParams pars) +runs on test_CT return ConnHdlr { + var ConnHdlr vc_conn; + vc_conn := f_start_handler_create(valueof(pars)); + f_start_handler_run(vc_conn, fn, valueof(pars)); + return vc_conn; +} + +/*********************************************************************** + * code running inside per-UE ConnHdlr + ***********************************************************************/ + +type function void_fn(charstring id, TestHdlrParams pars) runs on ConnHdlr; + +function f_init_handler(TestHdlrParams pars, float t_guard := 20.0) runs on ConnHdlr { + /* make parameters available via component variable */ + g_pars := pars; + + /* start guard timer and activate it as default */ + g_Tguard.start(t_guard); + activate(as_Tguard_ConnHdlr()); + + map(self:HNBGWVTY, system:HNBGWVTY); + f_vty_set_prompts(HNBGWVTY); + f_vty_transceive(HNBGWVTY, "enable"); + + /* TODO: CTRL? */ + + f_sleep(1.0); +} + +/* global altstep for global guard timer; */ +private altstep as_Tguard_ConnHdlr() runs on ConnHdlr { + [] g_Tguard.timeout { + setverdict(fail, "Timeout of T_guard"); + mtc.stop; + } +} + +private function f_bssap_expect(template (present) RANAP_PDU exp_rx) runs on ConnHdlr return RANAP_PDU +{ + var RANAP_PDU rx; + timer T := 5.0; + T.start; + alt { + [] BSSAP.receive(exp_rx) -> value rx { + setverdict(pass); + } + [] BSSAP.receive(RANAP_PDU:?) { + setverdict(fail, "Got an unexpected RANAP message on BSSAP port, was waiting for ", exp_rx); + mtc.stop; + } + [] T.timeout { + setverdict(fail, "Timeout waiting for RANAP on BSSAP port: ", exp_rx); + mtc.stop; + } + } + T.stop; + return rx; +} + +/* send RANAP on Iuh and expect it to show up on Iu */ +function f_iuh2iu(template (present) RANAP_PDU tx, template RANAP_PDU exp_rx := omit) +runs on ConnHdlr return RANAP_PDU { + var RANAP_PDU rx; + timer T := 5.0; + + if (istemplatekind(exp_rx, "omit")) { + exp_rx := tx; + } + + RUA.send(tx); + + return f_bssap_expect(exp_rx); +} + +/* send RANAP on Iu and expect it to show up on Iuh */ +function f_iu2iuh(template (present) RANAP_PDU tx, template RANAP_PDU exp_rx := omit) +runs on ConnHdlr return RANAP_PDU { + if (istemplatekind(exp_rx, "omit")) { + exp_rx := tx; + } + + BSSAP.send(tx); + + return f_rua_expect(exp_rx) +} + +/* expect to receive a specific RUA message on Iuh */ +private function f_rua_expect(template (present) RANAP_PDU exp_rx) runs on ConnHdlr return RANAP_PDU +{ + var RANAP_PDU rx; + timer T := 5.0; + T.start; + alt { + [] RUA.receive(exp_rx) -> value rx { + setverdict(pass); + } + [] RUA.receive(RANAP_PDU:?) { + setverdict(fail, "Got an unexpected RUA message, was waiting for ", exp_rx); + mtc.stop; + } + [] T.timeout { + setverdict(fail, "Timeout waiting for Iuh ", exp_rx); + mtc.stop; + } + } + T.stop; + return rx; +} + +/* send RANAP on Iuh and expect it to show up on Iu */ +function f_iuh2iu_connect(template (present) RANAP_PDU tx, template RANAP_PDU exp_rx := omit) +runs on ConnHdlr return RANAP_PDU { + var RANAP_PDU rx; + timer T := 5.0; + + if (istemplatekind(exp_rx, "omit")) { + exp_rx := tx; + } + + /* create an expect on the Iu side for the random NAS portion */ + if (g_pars.expect_separate_sccp_cr) { + f_ran_register_sccp_cr_without_payload(); + } else { + var template (omit) octetstring nas := f_ranap_extract_l3(valueof(tx)); + f_ran_register_exp(valueof(nas)); + } + + /* send it via Iuh (creating a RUA connection) */ + RUA.send(RUA_Conn_Req:{g_pars.ps_domain, tx}); + + if (g_pars.expect_separate_sccp_cr) { + /* Acknowledge the empty SCCP CR. RAN_Emulation does the confirmation, no need to respond. */ + BSSAP.receive(tr_RANAP_Conn_Req()); + } + + /* expect to receive it on the Iu side */ + return f_bssap_expect(exp_rx); +} + +/* 3GPP TS 48.006 9.2 Connection release: + * + * The MSC sends a SCCP released message. This message shall not contain + * any user data field. + * + * So what we expect normally is: + * + * HNBGW MSC + * RUA --id-Disconnect-------> | ---Data-Form-1(!)---> | Iu-ReleaseComplete + * | <--Released---------- | (no data) + * + * This function tests osmo-hnbgw behavior if the CN fails to send a RLSD: + * after some timeout, osmo-hnbgw should send a RLSD to the CN. + */ +function f_iuh2iu_disconnect(template (present) RANAP_PDU tx, RUA_IEs.Cause cause, + template RANAP_PDU exp_rx := omit) +runs on ConnHdlr return RANAP_PDU { + var RANAP_PDU rx + timer T := int2float(mp_hnbgw_timer_x31) + 1.0; + + if (istemplatekind(exp_rx, "omit")) { + exp_rx := tx; + } + + /* send it via Iuh (creating a RUA connection) */ + RUA.send(RUA_Disc_Req:{tx, cause}); + + /* expect to receive it on the Iu side */ + rx := f_bssap_expect(exp_rx); + + /* expect disconnect on the Iu side */ + T.start; + alt { + [] BSSAP.receive(RAN_Conn_Prim:MSC_CONN_PRIM_DISC_IND) { + setverdict(pass); + } + [] T.timeout { + setverdict(fail, "Timeout waiting for Iu disconnect"); + return rx; + } + + } + return rx; +} + +private function f_build_initial_ue_with_nas(TestHdlrParams pars, octetstring nas) + return RANAP_PDU { + var RANAP_IEs.LAI lai := { + pLMNidentity := hex2oct(pars.hnb.lai.mcc_mnc), + lAC := int2oct(pars.hnb.lai.lac, 2), + iE_Extensions := omit + }; + var RANAP_IEs.SAI sai := { + pLMNidentity := lai.pLMNidentity, + lAC := lai.lAC, + sAC := int2oct(pars.hnb.sac, 2), + iE_Extensions := omit + } + var IuSignallingConnectionIdentifier sigc_id := int2bit(f_rnd_int(1000), 24); + var GlobalRNC_ID grnc_id := { + pLMNidentity := lai.pLMNidentity, + rNC_ID := 2342 + } + var template RANAP_PDU ret; + if (pars.ps_domain) { + var RANAP_IEs.RAC rac := '00'O; + ret := ts_RANAP_initialUE_PS(lai, rac, sai, nas, sigc_id, grnc_id); + } else { + ret := ts_RANAP_initialUE_CS(lai, sai, nas, sigc_id, grnc_id); + } + return valueof(ret); +} + +/* build a RANAP InitialUE based on the TestHdlrParams */ +friend function f_build_initial_ue(TestHdlrParams pars) return RANAP_PDU { + + var octetstring nas; + + if (pars.tx_sccp_cr_data_len == 0) { + nas := f_rnd_octstring(10); + } else { + /* The test asks for an exact number of Optional Data bytes. */ + + /* First see what size the RANAP part of the payload data is, + * to adjust the NAS PDU size to the size requested by the test (pars.tx_sccp_cr_data_len). */ + var RANAP_PDU initial_ue := f_build_initial_ue_with_nas(pars, '00'O); + + var octetstring ranap_plus_one_byte_nas := enc_RANAP_PDU(initial_ue); + var integer ranap_length := lengthof(ranap_plus_one_byte_nas) - 1; + + log("ranap_plus_one_byte_nas = ", lengthof(ranap_plus_one_byte_nas), " bytes, ", initial_ue, " = ", + ranap_plus_one_byte_nas); + log("ranap_length = ", ranap_length); + + /* SCCP CR has a payload length limit of 130 bytes. To trigger this limit, the RANAP + NAS PDU has to be + * > 130 bytes. It doesn't need to be 131 bytes in the NAS PDU alone, but let's just make it definitely + * large enough. To test for this limit, pars.tx_sccp_cr_data_len asks for a specific amount of data len. */ + nas := f_rnd_octstring(pars.tx_sccp_cr_data_len - ranap_length); + } + + var RANAP_PDU ret := f_build_initial_ue_with_nas(pars, nas); + + if (pars.tx_sccp_cr_data_len != 0) { + for (var integer attempts := 0; attempts < 2; attempts := attempts + 1) { + var octetstring check_len := enc_RANAP_PDU(ret); + log("final RANAP PDU length = ", lengthof(check_len)); + if (lengthof(check_len) == pars.tx_sccp_cr_data_len) { + return ret; + } + nas := f_rnd_octstring(lengthof(nas) + (pars.tx_sccp_cr_data_len - lengthof(check_len))); + log("that was off, changed NAS length to ", lengthof(nas), " and trying again"); + ret := f_build_initial_ue_with_nas(pars, nas); + } + setverdict(fail, "Ended up with wrong Optional Data length"); + mtc.stop; + } + return ret; +} + +/* build a RANAP RAB AssignmentResponse based on the TestHdlrParams */ +friend function f_build_rab_ass_resp(TestHdlrParams pars) return RANAP_PDU { + var template RAB_SetupOrModifiedList rab_sml; + + rab_sml := ts_RAB_SMdL(t_RAB_id(23), f_ts_RAB_TLA("192.168.1.23"), t_RAB_binding_port(1234)); + + return valueof(ts_RANAP_RabAssResp(rab_sml)); +} + + +/*********************************************************************** + * HNBAP Testing + ***********************************************************************/ + + +function f_hnbap_hnb_register(integer hnb_idx := 0, integer cell_id := 0, boolean expect_reject := false) runs on test_CT +{ + timer T := 2.0; + + HNBAP[hnb_idx].send(ts_HNBAP_HNBRegisterRequest(char2oct("TTCN3-HNB-" & int2str(hnb_idx)), + hex2oct(g_hnb_cfg[hnb_idx].lai.mcc_mnc), + int2bit(1 + cell_id, 28), + int2oct(g_hnb_cfg[hnb_idx].lai.lac, 2), + int2oct(0, 1), + int2oct(g_hnb_cfg[hnb_idx].sac, 2))); + + T.start; + alt { + [] HNBAP[hnb_idx].receive(tr_HNBAP_HNBRegisterAccept(?)) { + if (expect_reject) { + setverdict(fail, "Rx HNB Register Accept while expecting reject"); + } else { + setverdict(pass); + } + } + [] HNBAP[hnb_idx].receive(tr_HNBAP_HNBRegisterReject(?)) { + if (expect_reject) { + setverdict(pass); + } else { + setverdict(fail, "Rx HNB Register Reject while expecting accept"); + } + } + [] HNBAP[hnb_idx].receive(IUHEM_Event:?) { + repeat; + } + [] T.timeout { + setverdict(fail, "Timeout waiting for HNB Register response"); + } + } +} + +function f_hnbap_ue_register(integer hnb_idx := 0, template (present) UE_Identity ue_id, boolean expect_reject := false) runs on test_CT +{ + timer T := 2.0; + + HNBAP[hnb_idx].send(ts_HNBAP_UERegisterRequest(ue_id)); + + T.start; + alt { + [] HNBAP[hnb_idx].receive(tr_HNBAP_UERegisterAccept(ue_id)) { + if (expect_reject) { + setverdict(fail, "Rx UE Register Accept while expecting reject"); + } else { + setverdict(pass); + } + } + [] HNBAP[hnb_idx].receive(tr_HNBAP_UERegisterReject(ue_id, ?)) { + if (expect_reject) { + setverdict(pass); + } else { + setverdict(fail, "Rx UE Register Reject while expecting accept"); + } + } + [] HNBAP[hnb_idx].receive(IUHEM_Event:?) { + repeat; + } + [] T.timeout { + setverdict(fail, "Timeout waiting for UE Register response"); + } + } +} + + +testcase TC_hnb_register() runs on test_CT { + g_num_hnbs := 1; + f_init(start_hnb := false); + f_hnbap_hnb_register(0); + f_shutdown_helper(); +} + +/* Try to register the same HNB from 2 different concurrent connections. Second + * one should be rejected. */ +testcase TC_hnb_register_duplicate() runs on test_CT { + g_num_hnbs := 2; + f_init(start_hnb := false); + + /* Make HNB REQ look as if it came from the same HnodeB (LAI+SAC), + * but from different IP address (underlaying link): */ + g_hnb_cfg[1] := g_hnb_cfg[0]; + f_hnbap_hnb_register(0); + f_hnbap_hnb_register(1, 0, expect_reject := true); + + f_verify_talloc_count(HNBGWVTY, {"struct hnb_context"}, expect_count := 1); + + f_shutdown_helper(); +} + +/* Try to register the same HNB in the same connection already established, aka + * duplicate HNB Register Request. It should be accepted and new configuration + * applied. TS 25.469 8.2.4 */ +testcase TC_hnb_register_duplicate_reuse_sctp_assoc() runs on test_CT { + g_num_hnbs := 1; + f_init(start_hnb := false); + f_hnbap_hnb_register(0); + f_hnbap_hnb_register(0); + f_verify_talloc_count(HNBGWVTY, {"struct hnb_context"}, expect_count := 1); + f_shutdown_helper(); +} + +/* Drop HNBAP conn (HNBAP DEREG) and reconnect it (HNBAP REG) using same SCTP association. + * Related: OS#5676, SYS#6113 */ +testcase TC_hnb_reregister_reuse_sctp_assoc() runs on test_CT { + g_num_hnbs := 1; + f_init(start_hnb := false); + f_hnbap_hnb_register(0); + HNBAP[0].send(ts_HNBAP_HNBDe_Register(ts_HnbapCause(unspecified))); + f_hnbap_hnb_register(0); + f_verify_talloc_count(HNBGWVTY, {"struct hnb_context"}, expect_count := 1); + f_shutdown_helper(); +} + +/* Default list of counters for a 'hnb' entity */ +const CounterNameVals counternames_hnb := { + { "iuh:established", 0 } +}; + +private function f_ctrs_hnb_init(integer hnb_start := 0, integer hnb_count := 1, + CounterNameVals counternames := counternames_hnb) runs on test_CT { + g_ctr_hnb := f_counter_name_vals_get_n(IPA_CTRL, "hnb", hnb_count, counternames, start_idx := hnb_start); + log("initial hnb rate counters: ", g_ctr_hnb); +} + +/* f_ctrs_hnb_init(); + * f_do_thing(on_hnb := 0); + * f_do_thing(on_hnb := 0); + * f_do_other(on_hnb := 1); + * f_ctrs_hnb_add(0, "thing", 2); + * f_ctrs_hnb_add(1, "other"); + * f_ctrs_hnb_verify(); + */ +private function f_ctrs_hnb_verify() runs on test_CT { + log("verifying hnb rate counters: ", g_ctr_hnb); + f_counter_name_vals_expect_n(IPA_CTRL, "hnb", g_ctr_hnb); +} + +/* convenience: f_ctrs_hnb_add() and f_ctrs_hnb_verify() in one call. + * f_ctrs_hnb_init(); + * f_do_thing(on_hnb := 0); + * f_do_thing(on_hnb := 0); + * f_do_thing(on_hnb := 0); + * f_ctrs_hnb_expect(0, "thing", 3); + */ +private function f_ctrs_hnb_expect(integer hnb_nr, charstring countername, integer val := 1) runs on test_CT { + f_ctrs_hnb_add(hnb_nr, countername, val); + f_ctrs_hnb_verify(); +} + +private function f_ctrs_hnb_add(integer hnb_nr, charstring countername, integer val := 1) runs on test_CT { + f_counter_name_vals_list_add(g_ctr_hnb, hnb_nr, countername, val); +} + +/* Set all counters for this hnb instance to a specific value. Useful to expect a disconnected and discarded hnb, + * because -1 is returned by f_counter_name_vals_get_n() when the hnb is not present on the CTRL interface. */ +private function f_ctrs_hnb_set_all(integer hnb_nr, integer val) runs on test_CT { + for (var integer i := 0; i < lengthof(counternames_hnb); i := i + 1) { + f_counter_name_vals_list_set(g_ctr_hnb, hnb_nr, counternames_hnb[i].name, val); + } +} + +private function f_vty_run_hnbgw(TELNETasp_PT pt, charstring cmd) +{ + f_vty_enter_config(pt); + f_vty_transceive(pt, "hnbgw"); + f_vty_transceive(pt, cmd); + f_vty_transceive(pt, "end"); +} + +testcase TC_hnb_disconnected_timeout() runs on test_CT { + g_num_hnbs := 1; + f_init(start_hnb := true); + + f_vty_run_hnbgw(HNBGWVTY, "timer hnbgw X35 5"); + + /* Init the counters when the hnb already exists. There should be a nonzero iuh:established count now. */ + f_ctrs_hnb_init(); + + /* Drop the Iuh link */ + f_drop_hnodeb(0); + f_sleep(1.0); + + /* The hNodeB persistent state should still be around, because X35 has not yet elapsed. */ + f_ctrs_hnb_verify(); + + f_sleep(5.0); + /* We get -1 counters when the CTRL interface returned an error for the requested counter, meaning that the + * hnb_persistent no longer exists. Verify that it is gone: */ + f_ctrs_hnb_set_all(0, -1); + f_ctrs_hnb_verify(); + + f_sleep(1.0); + + /* Connect again. */ + var RuaOps rua_ops := { + create_cb := refers(IuhRanapCreateCallback), + unitdata_cb := refers(IuhRanapUnitdataCallback) + }; + f_init_hnodeb(testcasename(), 0, rua_ops); + + /* still disconnected until actually registered on HNBAP */ + f_ctrs_hnb_verify(); + + f_hnbap_hnb_register(0); + /* The hNodeB has come back to existence, so expect 0, not -1 anymore: */ + f_ctrs_hnb_set_all(0, 0); + /* Also we've registered once. */ + f_ctrs_hnb_add(0, "iuh:established", 1); + f_ctrs_hnb_verify(); + f_sleep(1.0); + + /* Again drop the Iuh link, wait for X35 and see that it's gone again. */ + f_drop_hnodeb(0); + f_ctrs_hnb_verify(); + f_sleep(6.0); + f_ctrs_hnb_set_all(0, -1); + f_ctrs_hnb_verify(); + + f_shutdown_helper(); +} + +/* regular UE registration */ +testcase TC_ue_register() runs on test_CT { + var UE_Identity ue_id := { iMSI := imsi_hex2oct(f_gen_imsi(1)) }; + g_num_hnbs := 1; + f_init(start_hnb := true); + f_hnbap_ue_register(0, ue_id); + f_shutdown_helper(); +} + +/* regular UE registration (UE Identity: TMSI+LAI) */ +testcase TC_ue_register_tmsi_lai() runs on test_CT { + var UE_Identity ue_id := { tMSILAI := { tMSI := oct2bit(f_gen_tmsi(0)), + lAI := { pLMNID := '00F110'O, lAC := '2342'O } + } + }; + g_num_hnbs := 1; + f_init(start_hnb := true); + f_hnbap_ue_register(0, ue_id); + f_shutdown_helper(); +} + + +/* UE registration from unregistered HNB */ +testcase TC_ue_register_before_hnb_register() runs on test_CT { + var UE_Identity ue_id := { iMSI := imsi_hex2oct(f_gen_imsi(1)) }; + g_num_hnbs := 1; + f_init(start_hnb := false); + f_hnbap_ue_register(0, ue_id, expect_reject := true); + f_shutdown_helper(); +} + +/*********************************************************************** + * RUA / RANAP Testing + ***********************************************************************/ + +/* Translate from {msc,sgsn}x{0..n} to the proper index to use in g_cn[]. + * g_cn[] stores CN links, MSCs and SGSNs in the same array. + * For example, for 'sgsn 23', use g_cn[ f_cn_idx(ps_domain := true, cn_nr := 23) ]. + * + * Note the naming: + * cn_nr is the number used in the cfg file, as in 'msc 0'. + * cn_idx is the array index in g_cn[]. + */ +private function f_cn_idx(boolean ps_domain, integer cn_nr := 0) return integer +{ + if (ps_domain) { + return FIRST_SGSN_IDX + cn_nr; + } + return FIRST_MSC_IDX + cn_nr; +} + +private template (value) TestHdlrParams +t_pars(integer imsi_suffix, boolean ps_domain := false, integer hnb_idx := 0, + boolean expect_separate_sccp_cr := false, integer tx_sccp_cr_data_len := 0, + integer cn_nr := 0, template (value) RANAP_IEs.Cause rab_rel_cause := ts_RanapCause_nas_normal) := { + hnb_idx := hnb_idx, + 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, + pfcp_local_addr := mp_pfcp_ip_local, + nas_pdu := omit, + sccp_addr_msc := omit, + sccp_addr_hnbgw := omit, + rab_rel_cause := rab_rel_cause +} + +/* Create an Iuh connection; send InitialUE; expect it to appear on new SCCP conenction */ +friend function f_tc_initial_ue(charstring id, TestHdlrParams pars) runs on ConnHdlr { + f_init_handler(pars); + var RANAP_PDU tx := f_build_initial_ue(g_pars); + f_iuh2iu_connect(tx); +} +testcase TC_ranap_cs_initial_ue() runs on test_CT { + var ConnHdlr vc_conn; + + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_initial_ue), t_pars(1)); + vc_conn.done; + + f_shutdown_helper(); +} +testcase TC_ranap_ps_initial_ue() runs on test_CT { + var ConnHdlr vc_conn; + + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_initial_ue), t_pars(2, true)); + vc_conn.done; + + f_shutdown_helper(); +} + +private function f_vty_set_sccp_max_optional_data(TELNETasp_PT pt, integer val := -1) +{ + var charstring valstr; + if (val < 0) { + valstr := "standard"; + } else { + valstr := int2str(val); + } + f_vty_enter_config(pt); + f_vty_transceive(pt, "cs7 instance 0"); + f_vty_transceive(pt, "sccp max-optional-data " & valstr); + f_vty_transceive(pt, "end"); +} + +testcase TC_ranap_cs_initial_ue_empty_cr() runs on test_CT { + var ConnHdlr vc_conn; + + g_num_hnbs := 1; + f_init(); + + f_vty_set_sccp_max_optional_data(HNBGWVTY, 0); + + vc_conn := f_start_handler_with_pars(refers(f_tc_initial_ue), t_pars(1, expect_separate_sccp_cr := true)); + vc_conn.done; + + /* reset */ + f_vty_set_sccp_max_optional_data(HNBGWVTY); + + f_shutdown_helper(); +} +testcase TC_ranap_ps_initial_ue_empty_cr() runs on test_CT { + var ConnHdlr vc_conn; + + g_num_hnbs := 1; + f_init(); + + f_vty_set_sccp_max_optional_data(HNBGWVTY, 0); + + vc_conn := f_start_handler_with_pars(refers(f_tc_initial_ue), t_pars(2, true, expect_separate_sccp_cr := true)); + vc_conn.done; + + /* reset */ + f_vty_set_sccp_max_optional_data(HNBGWVTY); + + f_shutdown_helper(); +} + +type record Testdata_CR_Limit { + integer data_len, + integer max_optional_data, + boolean expect_separate_sccp_cr +}; +type record of Testdata_CR_Limit Testdata_CR_Limits; + +testcase TC_sccp_cr_limit() runs on test_CT { + g_num_hnbs := 1; + f_init(); + + const Testdata_CR_Limits tests := { + { data_len := 130, max_optional_data := -1, expect_separate_sccp_cr := false }, + { data_len := 131, max_optional_data := -1, expect_separate_sccp_cr := true }, + + { data_len := 100, max_optional_data := 100, expect_separate_sccp_cr := false }, + { data_len := 101, max_optional_data := 100, expect_separate_sccp_cr := true }, + + { data_len := 200, max_optional_data := 200, expect_separate_sccp_cr := false }, + { data_len := 201, max_optional_data := 200, expect_separate_sccp_cr := true } + }; + + var integer csps; + for (csps := 0; csps < 2; csps := csps + 1) { + var boolean ps_domain := (csps > 0); + + var integer i; + for (i := 0; i < lengthof(tests); i := i + 1) { + var Testdata_CR_Limit t := tests[i]; + f_logp(HNBGWVTY, + "TEST PART TC_sccp_cr_limit ps_domain=" & f_bool2str(ps_domain) + & " data_len=" & int2str(t.data_len) + & " max_optional_data=" & int2str(t.max_optional_data) + & " expect_separate_sccp_cr=" & f_bool2str(t.expect_separate_sccp_cr) + ); + + f_vty_set_sccp_max_optional_data(HNBGWVTY, t.max_optional_data); + var ConnHdlr vc_conn; + vc_conn := f_start_handler_with_pars(refers(f_tc_initial_ue), + t_pars(100 + i, + ps_domain := ps_domain, + expect_separate_sccp_cr := t.expect_separate_sccp_cr, + tx_sccp_cr_data_len := t.data_len)); + vc_conn.done; + } + } + + /* reset */ + f_vty_set_sccp_max_optional_data(HNBGWVTY); + + f_shutdown_helper(); +} + +/* Reply to a received CRCX with an OK (or the reply configured in cpars), using the given parameters. + * Return true when an OK reply was sent, false otherwise. + * Count occurrence of Osmux, include Osmux parameters in the reply if necessary. */ +function f_handle_crcx(inout MgcpParameters pars, MgcpCommand mgcp_cmd) return template MgcpResponse { + var MgwResponse conn := pars.mgw_conn_ran; + if (pars.got_crcx_count > 0) { + conn := pars.mgw_conn_cn; + } + pars.got_crcx_count := pars.got_crcx_count + 1; + + var MgcpMessage mgcp_msg := { + command := mgcp_cmd + } + var template MgcpResponse mgcp_resp; + var MgcpOsmuxCID osmux_cid; + var MgcpCallId call_id := f_MgcpCmd_extract_call_id(mgcp_cmd); + if (ispresent(pars.mgcp_call_id)) { + if (pars.mgcp_call_id != call_id) { + setverdict(fail, "CRCX contained unexpected call id. Expected:", pars.mgcp_call_id, " got:", call_id); + mtc.stop; + } + } else { + pars.mgcp_call_id := call_id; + } + + /* When the endpoint contains a wildcard we keep the endpoint + * identifier we have set up in pars. Otherwise we use the + * endpoint name that the call agent has supplied */ + if (match(mgcp_cmd.line.ep, t_MGCP_EP_wildcard) == false) { + pars.mgcp_ep := mgcp_cmd.line.ep; + } + + if (conn.resp == -1) { + /* Reply with rror */ + var MgcpResponse mgcp_rsp := { + line := { + code := "542", + trans_id := mgcp_cmd.line.trans_id, + string := "FORCED_FAIL" + }, + sdp := omit + + } + var MgcpParameter mgcp_rsp_param := { + code := "Z", + val := pars.mgcp_ep + }; + mgcp_rsp.params[0] := mgcp_rsp_param; + return mgcp_rsp; + } + + if (conn.resp == 0) { + /* Do not reply at all */ + return omit; + } + + if (conn.resp != 1) { + setverdict(fail, "Unexpected value for pars.mgw_conn_*.resp, expect -1, 0 or 1"); + mtc.stop; + } + + var SDP_Message sdp := valueof(ts_SDP(conn.mgw_rtp_ip, conn.mgw_rtp_ip, + hex2str(pars.mgcp_call_id), "42", + conn.mgw_rtp_port, + { int2str(pars.rtp_payload_type) }, + { valueof(ts_SDP_rtpmap(pars.rtp_payload_type, + pars.rtp_sdp_format)), + valueof(ts_SDP_ptime(20)) })); + + if (f_mgcp_contains_par(mgcp_msg, "X-OSMUX")) { + if (not pars.use_osmux) { + setverdict(fail, "MSC sent X-Osmux parameter in MGCP, but not expecting any Osmux"); + mtc.stop; + } + pars.got_osmux_count := pars.got_osmux_count + 1; + /* we expect MSC to use wildcard here, i.e. osmux_cid == -1 */ + osmux_cid := f_MgcpCmd_extract_osmux_cid(mgcp_cmd); + log("f_handle_crcx(): got Osmux CID: ", osmux_cid); + if (osmux_cid != -1) { + setverdict(fail, "MSC using unexpected CID " & int2str(osmux_cid) & " != -1"); + mtc.stop; + } + + osmux_cid := 0; + mgcp_resp := ts_CRCX_ACK_osmux(mgcp_cmd.line.trans_id, conn.mgcp_connection_id, osmux_cid, sdp); + } else { + mgcp_resp := ts_CRCX_ACK(mgcp_cmd.line.trans_id, conn.mgcp_connection_id, sdp); + } + + f_mgcp_par_append(mgcp_resp.params, ts_MgcpParSpecEP(pars.mgcp_ep)); + + return mgcp_resp; +} + +friend function f_create_rab(inout MgcpParameters pars) runs on ConnHdlr { + f_rab_ass_req(pars); + f_rab_ass_resp(pars); +} + +friend function f_rab_ass_req(inout MgcpParameters pars) runs on ConnHdlr { + var MgcpCommand mgcp_cmd; + var RANAP_PDU tx; + var template RAB_SetupOrModifyList rab_sml; + timer T := 5.0; + + /* Send RAB Assignment Request */ + rab_sml := ts_RAB_SML(t_RAB_id(23), f_ts_RAB_TLA(pars.cn_rtp_ip), t_RAB_binding_port(pars.cn_rtp_port)); + tx := valueof(ts_RANAP_RabAssReq(rab_sml)); + BSSAP.send(tx); + T.start; + + /* Handle MGCP CRCX */ + alt { + [] MGCP.receive(tr_CRCX) -> value mgcp_cmd { + log("CRCX1", mgcp_cmd); + var template MgcpResponse mgcp_rsp := f_handle_crcx(pars, mgcp_cmd); + MGCP.send(valueof(mgcp_rsp)); + } + [] T.timeout { + setverdict(fail, "Timeout waiting for MGCP"); + } + } + T.stop; + + /* Expect RAB Assignment Request with IP/port from CRCX ACK via Iuh */ + rab_sml := ts_RAB_SML(t_RAB_id(23), f_ts_RAB_TLA(pars.mgw_conn_ran.mgw_rtp_ip), t_RAB_binding_port(pars.mgw_conn_ran.mgw_rtp_port)); + tx := valueof(ts_RANAP_RabAssReq(rab_sml)); + + f_rua_expect(tx); +} + +friend function f_rab_ass_resp(inout MgcpParameters pars) runs on ConnHdlr { + var MgcpCommand mgcp_cmd; + var RANAP_PDU tx; + var template RAB_SetupOrModifiedList rab_smdl; + + /* 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); + + interleave { + /* 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; + } + + /* Verify SDP of MDCX */ + var SDP_Message sdp := valueof(ts_SDP(mgw_rtp_ip, mgw_rtp_ip, hex2str(pars.mgcp_call_id), "42", pars.mgw_conn_ran.mgw_rtp_port, + { 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 { + log("CRCX2", mgcp_cmd); + /* Verify SDP of CRCX */ + var template MgcpResponse mgcp_rsp := f_handle_crcx(pars, mgcp_cmd); + MGCP.send(valueof(mgcp_rsp)); + } + } + + /* Expect RAB Assignment Response with IP/port from second CRCX ACK */ + rab_smdl := ts_RAB_SMdL(t_RAB_id(23), f_ts_RAB_TLA(pars.mgw_conn_cn.mgw_rtp_ip), t_RAB_binding_port(pars.mgw_conn_cn.mgw_rtp_port)); + tx := valueof(ts_RANAP_RabAssResp(rab_smdl)); + + f_bssap_expect(tx); +} + +private altstep as_mgcp_dlcx(inout TestHdlrParams pars) runs on ConnHdlr { + var MgcpCommand mgcp_cmd; + + [] MGCP.receive(tr_DLCX(pars.mgcp_pars.mgcp_ep)) -> value mgcp_cmd { + log("DLCX", mgcp_cmd); + MGCP.send(ts_DLCX_ACK2(mgcp_cmd.line.trans_id)); + pars.mgcp_pars.got_dlcx_count := pars.mgcp_pars.got_dlcx_count + 1; + if (pars.mgcp_pars.got_dlcx_count != pars.mgcp_pars.got_crcx_count) { + repeat; + } + setverdict(pass); + } +} + +friend function f_tc_rab_assignment(charstring id, TestHdlrParams pars) runs on ConnHdlr { + const charstring hnb0_ctr_prefix := "TTCN3.hnb.001-01-L2342-R0-S55-C1."; + var MgcpCommand mgcp_cmd; + var RANAP_PDU tx; + timer T := 5.0; + + f_init_handler(pars); + f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); + + f_statsd_reset(); + + tx := f_build_initial_ue(g_pars); + f_iuh2iu_connect(tx); + + /* Expect stats to be 0 */ + var StatsDExpects expect := { + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.req", mtype := "c", min := 0, max := 0}, + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.cnf", mtype := "c", min := 0, max := 0}, + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.fail", mtype := "c", min := 0, max := 0} + }; + f_statsd_expect(expect); + + f_create_rab(pars.mgcp_pars); + + expect := { + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.req", mtype := "c", min := 1, max := 1}, + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.cnf", mtype := "c", min := 1, max := 1}, + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.fail", mtype := "c", min := 0, max := 0} + }; + f_statsd_expect(expect); + + /* Send Iu Release */ + tx := valueof(ts_RANAP_IuReleaseCommand(pars.rab_rel_cause)); + f_iu2iuh(tx); + + T.start; + alt { + [] as_mgcp_dlcx(pars) {} + [] T.timeout { + setverdict(fail, "Timeout waiting for DLCX"); + } + } + + tx := valueof(ts_RANAP_IuReleaseComplete()); + f_iuh2iu(tx); +} + +testcase TC_rab_assignment() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_rab_assignment), t_pars(3)); + vc_conn.done; + + f_shutdown_helper(); +} + +friend function f_tc_rab_assign_fail(charstring id, TestHdlrParams pars) runs on ConnHdlr { + const charstring hnb0_ctr_prefix := "TTCN3.hnb.001-01-L2342-R0-S55-C1."; + var MgcpCommand mgcp_cmd; + var RANAP_PDU tx; + timer T := 5.0; + + f_init_handler(pars); + f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); + + f_statsd_reset(); + + tx := f_build_initial_ue(g_pars); + f_iuh2iu_connect(tx); + + /* Expect stats to be 0 */ + var StatsDExpects expect := { + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.req", mtype := "c", min := 0, max := 0}, + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.cnf", mtype := "c", min := 0, max := 0}, + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.fail", mtype := "c", min := 0, max := 0} + }; + f_statsd_expect(expect); + + f_rab_ass_req(pars.mgcp_pars); + + /* Send RAB failed list in response */ + tx := valueof(ts_RANAP_RabAssResp(rab_fl := ts_RAB_FL(t_RAB_id(23), pars.rab_rel_cause))); + f_iuh2iu(tx); + + expect := { + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.req", mtype := "c", min := 1, max := 1}, + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.cnf", mtype := "c", min := 0, max := 0}, + {name := hnb0_ctr_prefix & "ranap.cs.rab_act.fail", mtype := "c", min := 1, max := 1} + }; + f_statsd_expect(expect); + + + T.start; + alt { + [] as_mgcp_dlcx(pars) {} + [] T.timeout { + setverdict(fail, "Timeout waiting for DLCX"); + } + } +} + +testcase TC_rab_assign_fail() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_rab_assign_fail), t_pars(4, rab_rel_cause := ts_RanapCause_radio_conn_lost)); + vc_conn.done; + + f_shutdown_helper(); +} + +friend function f_tc_rab_release(charstring id, TestHdlrParams pars) runs on ConnHdlr { + const charstring hnb0_ctr_prefix := "TTCN3.hnb.001-01-L2342-R0-S55-C1."; + var MgcpCommand mgcp_cmd; + var RANAP_PDU tx; + timer T := 15.0; + + f_init_handler(pars); + f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); + + f_statsd_reset(); + + tx := f_build_initial_ue(g_pars); + f_iuh2iu_connect(tx); + + f_create_rab(pars.mgcp_pars); + + var charstring ctr_name; + if (pars.rab_rel_cause == valueof(ts_RanapCause_nas_normal)) { + ctr_name := "ranap.cs.rab_rel.req.normal"; + } else { + ctr_name := "ranap.cs.rab_rel.req.abnormal"; + } + + /* Expect stats to be 0 */ + var StatsDExpects expect := { + {name := hnb0_ctr_prefix & ctr_name, mtype := "c", min := 0, max := 0} + }; + f_statsd_expect(expect); + + /* Send RAB Release */ + tx := valueof(ts_RANAP_RabAssReq(rab_rl := ts_RAB_RL(t_RAB_id(23), pars.rab_rel_cause))); + BSSAP.send(tx); + + expect := { + {name := hnb0_ctr_prefix & ctr_name, mtype := "c", min := 1, max := 1} + }; + f_statsd_expect(expect); + + T.start; + + alt { + [] as_mgcp_dlcx(pars) {} + [] T.timeout { + setverdict(fail, "Timeout waiting for DLCX"); + } + } + T.stop; + + f_rua_expect(tx); +} + +/* RAB release with Cause NAS/Normal (successful/orderly release) */ +testcase TC_rab_release() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_rab_release), t_pars(5)); + vc_conn.done; + + f_shutdown_helper(); +} + +/* RAB release with Cause abnormal */ +testcase TC_rab_release_abnormal() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_rab_release), + t_pars(8, rab_rel_cause := ts_RanapCause_radio_conn_lost)); + vc_conn.done; + + f_shutdown_helper(); +} + +friend function f_tc_rab_assign_mgcp_to(charstring id, TestHdlrParams pars) runs on ConnHdlr { + var MgcpCommand mgcp_cmd; + var RANAP_PDU tx; + var template RAB_SetupOrModifyList rab_sml; + timer T := 15.0; + + T.start; + f_init_handler(pars); + f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); + + tx := f_build_initial_ue(g_pars); + f_iuh2iu_connect(tx); + + + /* Send RAB Assignment Request */ + rab_sml := ts_RAB_SML(t_RAB_id(23), f_ts_RAB_TLA(pars.mgcp_pars.cn_rtp_ip), t_RAB_binding_port(pars.mgcp_pars.cn_rtp_port)); + tx := valueof(ts_RANAP_RabAssReq(rab_sml)); + BSSAP.send(tx); + + /* Ignore MGCP CRCX */ + alt { + [] MGCP.receive(tr_CRCX) -> value mgcp_cmd { + log("Ignoreing CRCX1", mgcp_cmd); + repeat; + } + [] BSSAP.receive(tr_RANAP_IuReleaseRequest(?)) { } + [] T.timeout { + setverdict(fail, "Timeout waiting for IuRelease"); + } + } + + /* Send Iu Release */ + tx := valueof(ts_RANAP_IuReleaseCommand(pars.rab_rel_cause)); + f_iu2iuh(tx); + + tx := valueof(ts_RANAP_IuReleaseComplete()); + f_iuh2iu(tx); +} + +testcase TC_rab_assign_mgcp_to() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_rab_assign_mgcp_to), t_pars(6)); + vc_conn.done; + + 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); + + /* HNB -> MSC: InitialUE */ + f_iuh2iu_connect(f_build_initial_ue(g_pars)); + + /* MSC <- HNB: DirectTransfer */ + f_iu2iuh(ts_RANAP_DirectTransfer(f_rnd_octstring(10))); + /* MSC -> HNB: DirectTransfer */ + f_iuh2iu(ts_RANAP_DirectTransfer(f_rnd_octstring(10))); + + /* HNB <- MSC: CommonID */ + f_iu2iuh(ts_RANAP_CommonId(hex2oct(pars.imsi))); +} +testcase TC_ranap_cs_bidir() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_ranap_bidir), t_pars(3)); + vc_conn.done; + + f_shutdown_helper(); +} +testcase TC_ranap_ps_bidir() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_ranap_bidir), t_pars(4, true)); + vc_conn.done; + + f_shutdown_helper(); +} + + +private function f_tc_ranap_mo_disconnect(charstring id, TestHdlrParams pars) runs on ConnHdlr { + f_init_handler(pars); + + /* HNB -> MSC: InitialUE */ + f_iuh2iu_connect(f_build_initial_ue(g_pars)); + + /* MSC <- HNB: DirectTransfer */ + f_iu2iuh(ts_RANAP_DirectTransfer(f_rnd_octstring(10))); + /* MSC -> HNB: DirectTransfer */ + f_iuh2iu(ts_RANAP_DirectTransfer(f_rnd_octstring(10))); + + /* MSC <- HNB: RUA disconnect */ + f_iuh2iu_disconnect(ts_RANAP_IuReleaseComplete, RUA_IEs.Cause:{misc:=processing_overload}); +} +testcase TC_ranap_cs_mo_disconnect() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_ranap_mo_disconnect), t_pars(5)); + vc_conn.done; + + f_shutdown_helper(); +} +testcase TC_ranap_ps_mo_disconnect() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_ranap_mo_disconnect), t_pars(6)); + vc_conn.done; + + f_shutdown_helper(); +} + +type record FTeid { + HostName addr, + OCT4 teid +} + +type record FTeids { + FTeid local, + FTeid remote +} + + +/* 'local' and 'remote' refer to the GTP information from the UPF's point of view: + * HNB UPF CN + * access.remote <---> access.local | core.local <---> core.remote + */ +type record GtpParameters { + FTeids core, + FTeids access +} + +/* HNB UPF CN + * access.remote <---> access.local | core.local <---> core.remote + * 127.0.0.4 127.0.0.3 127.0.0.2 127.0.0.1 + * 0x44004400 0x30303030 0x22002200 0x10101010 + */ +template GtpParameters t_GtpParameters := { + core := { + local := { + addr := "127.0.0.2", + teid := '22002200'O + }, + remote := { + addr := "127.0.0.1", + teid := '10101010'O + } + }, + access := { + local := { + addr := "127.0.0.3", + teid := '30303030'O + }, + remote := { + addr := "127.0.0.4", + teid := '44004400'O + } + } +} + +private function f_pfcp_expect(template (present) PDU_PFCP exp_rx, float wait_time := 5.0) runs on ConnHdlr return PDU_PFCP +{ + var PDU_PFCP rx; + timer T := wait_time; + T.start; + alt { + [] PFCP.receive(exp_rx) -> value rx { + setverdict(pass); + } + [] PFCP.receive(PDU_PFCP:?) { + setverdict(fail, "Got an unexpected PFCP message, was waiting for ", exp_rx); + mtc.stop; + } + [] T.timeout { + setverdict(fail, "Timeout waiting for PFCP ", exp_rx); + mtc.stop; + } + } + T.stop; + return rx; +} + +friend function f_tc_ps_rab_assignment_with_pfcp(charstring id, TestHdlrParams pars) runs on ConnHdlr { + var RANAP_PDU tx; + var RANAP_PDU rx; + + f_init_handler(pars); + + f_pfcp_register(); + + 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)); + + tx := f_build_initial_ue(g_pars); + f_iuh2iu_connect(tx); + + var GtpParameters gtp_pars := valueof(t_GtpParameters); + var template RAB_SetupOrModifyList rab_sml; + + /* Send RAB Assignment Request */ + rab_sml := ts_RAB_SML_ps(t_RAB_id(23), f_ts_RAB_TLA(gtp_pars.core.remote.addr), 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()); + 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"), '1111111111111111'O); + var template F_TEID f_teid1 := ts_PFCP_F_TEID_ipv4(gtp_pars.core.local.teid, + f_inet_addr(gtp_pars.core.local.addr)); + var template F_TEID f_teid2 := ts_PFCP_F_TEID_ipv4(gtp_pars.access.local.teid, + f_inet_addr(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(gtp_pars.access.local.addr), + 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(gtp_pars.access.remote.addr), + 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(gtp_pars.core.local.addr), gtp_pars.core.local.teid); + f_bssap_expect(tr_RANAP_RabAssResp(rab_smdl)); + + f_sleep(2.0); + tx := valueof(ts_RANAP_IuReleaseCommand(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)); + + f_sleep(2.0); +} + +testcase TC_ps_rab_assignment_with_pfcp() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + f_init_pfcp(testcasename()); + f_sleep(1.0); + + vc_conn := f_start_handler_with_pars(refers(f_tc_ps_rab_assignment_with_pfcp), t_pars(7, ps_domain := true)); + vc_conn.done; + + f_shutdown_helper(); +} + +altstep as_disallow_pfcp() runs on ConnHdlr { + [] PFCP.receive(PDU_PFCP:?) { + setverdict(fail, "Received PFCP message, but no PFCP communication expected"); + mtc.stop; + } +} + +friend function f_tc_ps_rab_assignment_without_pfcp(charstring id, TestHdlrParams pars) runs on ConnHdlr { + var RANAP_PDU tx; + var RANAP_PDU rx; + timer T := 5.0; + + f_init_handler(pars); + + f_pfcp_register(); + activate(as_disallow_pfcp()); + + tx := f_build_initial_ue(g_pars); + f_iuh2iu_connect(tx); + + var GtpParameters gtp_pars := valueof(t_GtpParameters); + var template RAB_SetupOrModifyList rab_sml; + + /* Send RAB Assignment Request */ + rab_sml := ts_RAB_SML_ps(t_RAB_id(23), f_ts_RAB_TLA(gtp_pars.core.remote.addr), 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(gtp_pars.access.remote.addr), + 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_sleep(2.0); + tx := valueof(ts_RANAP_IuReleaseCommand(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 { + var ConnHdlr vc_conn; + f_init(); + f_init_pfcp(testcasename()); + f_sleep(1.0); + + vc_conn := f_start_handler_with_pars(refers(f_tc_ps_rab_assignment_without_pfcp), t_pars(7, ps_domain := true)); + vc_conn.done; + + f_shutdown_helper(); +} + +/* Default list of counters for a 'cn' entity to test the cnpool feature. */ +const CounterNameVals counternames_cnpool := { + { "cnpool:subscr:new", 0 }, + { "cnpool:subscr:known", 0 }, + { "cnpool:subscr:reattach", 0 }, + { "cnpool:subscr:attach_lost", 0 }, + { "cnpool:subscr:paged", 0 } +}; +private function f_ctrs_cn_init(boolean ps_domain, integer cn_count := 0, + CounterNameVals counternames := counternames_cnpool) runs on test_CT { + if (ps_domain) { + g_ctr_cn_node_name := "sgsn"; + if (cn_count == 0) { + cn_count := NUM_SGSN; + } + } else { + g_ctr_cn_node_name := "msc"; + if (cn_count == 0) { + cn_count := NUM_MSC; + } + } + g_ctr_cn := f_counter_name_vals_get_n(IPA_CTRL, g_ctr_cn_node_name, cn_count, counternames); + log("initial " & g_ctr_cn_node_name & " rate counters: ", g_ctr_cn); +} + +/* f_ctrs_cn_init(); + * f_do_thing(on_cn := 0); + * f_do_thing(on_cn := 0); + * f_do_other(on_cn := 1); + * f_ctrs_cn_add(0, "thing", 2); + * f_ctrs_cn_add(1, "other"); + * f_ctrs_cn_verify(); + */ +private function f_ctrs_cn_verify() runs on test_CT { + log("verifying", g_ctr_cn_node_name, " rate counters: ", g_ctr_cn); + f_counter_name_vals_expect_n(IPA_CTRL, g_ctr_cn_node_name, g_ctr_cn); +} + +/* convenience: f_ctrs_cn_add() and f_ctrs_cn_verify() in one call. + * f_ctrs_cn_init(); + * f_do_thing(on_cn := 0); + * f_do_thing(on_cn := 0); + * f_do_thing(on_cn := 0); + * f_ctrs_cn_expect(0, "thing", 3); + */ +private function f_ctrs_cn_expect(integer cn_nr, charstring countername, integer val := 1) runs on test_CT { + f_ctrs_cn_add(cn_nr, countername, val); + f_ctrs_cn_verify(); +} + +private function f_ctrs_cn_add(integer cn_nr, charstring countername, integer val := 1) runs on test_CT { + f_counter_name_vals_list_add(g_ctr_cn, cn_nr, countername, val); +} + +private function f_perform_compl_l3(octetstring nas, boolean do_clear := true, boolean expect_iu_l3 := true) +runs on ConnHdlr { + timer T := 10.0; + + /* create an expect on the Iu side for the random NAS portion */ + if (g_pars.expect_separate_sccp_cr) { + f_ran_register_sccp_cr_without_payload(); + } else { + f_ran_register_exp(nas); + } + + /* send Connect via Iuh (creating a RUA connection) */ + var RANAP_PDU tx := f_build_initial_ue_with_nas(g_pars, nas); + RUA.send(RUA_Conn_Req:{g_pars.ps_domain, tx}); + + if (expect_iu_l3) { + /* Expect same message to arrive at CN */ + f_bssap_expect(tx); + } +} + +private function f_tc_cnpool_compl_l3(charstring id, TestHdlrParams pars) runs on ConnHdlr { + f_init_handler(pars); + f_perform_compl_l3(g_pars.nas_pdu); +} + +private function f_TC_cnpool_compl_l3(boolean ps_domain, octetstring nas_pdu, integer cn_nr, + template (omit) charstring inc_countername := omit) runs on test_CT { + var ConnHdlr vc_conn; + var template (value) TestHdlrParams pars := t_pars(0, ps_domain := ps_domain, cn_nr := cn_nr); + pars.nas_pdu := nas_pdu; + log("XXX ", pars); + vc_conn := f_start_handler_with_pars(refers(f_tc_cnpool_compl_l3), pars); + vc_conn.done; + + if (not istemplatekind(inc_countername, "omit")) { + f_ctrs_cn_expect(cn_nr, valueof(inc_countername)); + } +} + +function f_TC_cnpool_compl_l3_list(boolean ps_domain, ro_octetstring compl3, Osmocom_Types.ro_integer cn_nrs, + charstring inc_countername) runs on test_CT { + var integer n := lengthof(compl3); + if (n < lengthof(cn_nrs)) { + n := lengthof(cn_nrs); + } + for (var integer i := 0; i < n; i := i + 1) { + var integer cn_nr := cn_nrs[i mod lengthof(cn_nrs)]; + f_TC_cnpool_compl_l3(ps_domain, compl3[i mod lengthof(compl3)], cn_nr, inc_countername); + } +} + +type enumerated Compl3Type { + /* CS */ + LU, + CMSERV, + PAGRESP, + IMSIDETACH, + + /* PS */ + ATTACHREQ, + RAUREQ, + DETREQ +}; + +private function f_gen_one_compl_l3(Compl3Type compl3type, template (value) MobileIdentityLV mi, + integer ps_nri := -1 + ) return octetstring +{ + /* CS */ + if (compl3type == LU) { + return enc_PDU_ML3_MS_NW(valueof(ts_LU_REQ(LU_Type_IMSI_Attach, valueof(mi), '00F110'O))); + } + if (compl3type == CMSERV) { + return enc_PDU_ML3_MS_NW(valueof(ts_CM_SERV_REQ(CM_TYPE_MO_CALL, valueof(mi)))); + } + if (compl3type == PAGRESP) { + return enc_PDU_ML3_MS_NW(valueof(ts_PAG_RESP(valueof(mi)))); + } + if (compl3type == IMSIDETACH) { + return enc_PDU_ML3_MS_NW(valueof(ts_ML3_MO_MM_IMSI_DET_Ind(valueof(mi)))); + } + + /* PS */ + var template (omit) NetworkResourceIdentifierContainerTLV nri := omit; + if (ps_nri >= 0) { + nri := valueof(ts_GMM_NRI(ps_nri)); + } + + if (compl3type == ATTACHREQ) { + return enc_PDU_L3_MS_SGSN(valueof(ts_GMM_ATTACH_REQ(valueof(mi), f_RAI('001'H, '01'H, '2a2a'O, '17'O), + nri := nri))); + } + if (compl3type == RAUREQ) { + return enc_PDU_L3_MS_SGSN(valueof(ts_GMM_RAU_REQ(valueof(mi), GPRS_UPD_T_PERIODIC, + f_RAI('001'H, '01'H, '2a2a'O, '17'O), + nri := nri))); + } + if (compl3type == DETREQ) { + return enc_PDU_L3_MS_SGSN(valueof(ts_GMM_DET_REQ_MO_mi(c_GMM_DTT_MO_GPRS, power_off := false, + p_tmsi := valueof(ts_MI_TLV(mi.mobileIdentityV))))); + } + + setverdict(fail, "unknown complete layer 3 type"); + mtc.stop; +} + +type record of Compl3Type ro_Compl3Type; +type record of MobileIdentityLV ro_MobileIdentityLV; +type record of octetstring ro_octetstring; + +/* Generate a list of n Complete Layer 3 NAS PDUs, + * rotating through the message kinds listed in 'types' and the mobile identities in mis. + */ +private function f_gen_compl_l3(ro_Compl3Type types, ro_MobileIdentityLV mis, integer n) return ro_octetstring +{ + var ro_octetstring res := {}; + for (var integer i := 0; i < n; i := i + 1) { + var integer ti := i mod lengthof(types); + var integer mi := i mod lengthof(mis); + res[i] := f_gen_one_compl_l3(types[ti], mis[mi]); + } + return res; +} + +private function f_gen_mi_imsi(integer n) return MobileIdentityLV +{ + return valueof(ts_MI_IMSI_LV(f_gen_imsi(n))); +} + +private function f_gen_mi_imsis(integer n) return ro_MobileIdentityLV +{ + var ro_MobileIdentityLV mis := {}; + for (var integer i := 0; i < n; i := i + 1) { + mis[i] := f_gen_mi_imsi(n); + } + return mis; +} + +function f_vty_set_roundrobin_next(TELNETasp_PT VTY, boolean ps_domain, integer cn_nr) +{ + var charstring msc_sgsn; + if (ps_domain) { + msc_sgsn := "sgsn"; + } else { + msc_sgsn := "msc"; + } + f_vty_transceive(VTY, "cnpool roundrobin next " & msc_sgsn & " " & int2str(cn_nr)); +} + +private function f_gen_compl3_by_domain(boolean ps_domain, integer n, template (omit) ro_MobileIdentityLV mis := omit) return ro_octetstring{ + var ro_Compl3Type types; + if (ps_domain) { + types := { ATTACHREQ, RAUREQ, DETREQ }; + } else { + types := { LU, CMSERV, PAGRESP, IMSIDETACH }; + } + if (istemplatekind(mis, "omit")) { + mis := f_gen_mi_imsis(n); + } + return f_gen_compl_l3(types, valueof(mis), n); +} + +/* Various Complete Layer 3 by IMSI all end up with the first MSC, because the other MSCs are not connected. */ +testcase TC_mscpool_L3Compl_on_1_cnlink() runs on test_CT { + f_TC_cnpool_L3Compl_on_1_cnlink(ps_domain := false); +} +testcase TC_sgsnpool_L3Compl_on_1_cnlink() runs on test_CT { + f_TC_cnpool_L3Compl_on_1_cnlink(ps_domain := true); +} +function f_TC_cnpool_L3Compl_on_1_cnlink(boolean ps_domain) runs on test_CT { + + f_init(); + + f_ctrs_cn_init(ps_domain := ps_domain); + + var ro_octetstring compl3 := f_gen_compl3_by_domain(ps_domain, 4); + f_TC_cnpool_compl_l3_list(ps_domain, compl3, {0, 0, 0, 0}, "cnpool:subscr:new"); + + f_shutdown_helper(); +} + +/* Three Layer 3 Complete by IMSI are round-robin'ed across two connected MSCs */ +testcase TC_mscpool_L3Complete_by_imsi_round_robin() runs on test_CT { + f_TC_cnpool_L3Complete_by_imsi_round_robin(ps_domain := false); +} +testcase TC_sgsnpool_L3Complete_no_nri_round_robin() runs on test_CT { + f_TC_cnpool_L3Complete_by_imsi_round_robin(ps_domain := true); +} +function f_TC_cnpool_L3Complete_by_imsi_round_robin(boolean ps_domain) runs on test_CT { + + f_init(nr_msc := 2, nr_sgsn := 2); + f_sleep(1.0); + + /* Control which MSC gets chosen next by the round-robin, otherwise + * would be randomly affected by which other tests ran before this. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + f_ctrs_cn_init(ps_domain := ps_domain); + + var ro_octetstring compl3 := f_gen_compl3_by_domain(ps_domain, 3); + + f_TC_cnpool_compl_l3_list(ps_domain, compl3, + /* Third Complete Layer 3 wraps back to msc 0 */ + cn_nrs := {0, 1, 0}, + inc_countername := "cnpool:subscr:new"); + + f_shutdown_helper(); +} + +/* Three LU by TMSI are round-robin'ed across two connected MSCs, because they contain a NULL-NRI (0, 1) + * (configured in osmo-hnbgw.cfg). */ +testcase TC_mscpool_LU_by_tmsi_null_nri_0_round_robin() runs on test_CT { + f_TC_cnpool_LU_by_tmsi_null_nri_N_round_robin(ps_domain := false, nri_val := 0); +} +/* For NRI == 1, one of the MSC also has the NULL-NRI as part of its owned NRIs, but the NULL-NRI setting is stronger + * than that. */ +testcase TC_mscpool_LU_by_tmsi_null_nri_1_round_robin() runs on test_CT { + f_TC_cnpool_LU_by_tmsi_null_nri_N_round_robin(ps_domain := false, nri_val := 1); +} +function f_TC_cnpool_LU_by_tmsi_null_nri_N_round_robin(boolean ps_domain, integer nri_val) runs on test_CT { + + f_init(nr_msc := 2, nr_sgsn := 2); + f_sleep(1.0); + + /* Control which MSC gets chosen next by the round-robin, otherwise + * would be randomly affected by which other tests ran before this. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + f_ctrs_cn_init(ps_domain := ps_domain); + + var ro_MobileIdentityLV mis := { valueof(ts_MI_TMSI_NRI_LV(nri_val)) }; + var ro_octetstring compl3; + if (ps_domain) { + compl3 := { + f_gen_one_compl_l3(ATTACHREQ, mis[0], nri_val) + }; + } else { + compl3 := f_gen_compl_l3({LU}, mis, 1); + } + + f_TC_cnpool_compl_l3_list(ps_domain, compl3, + /* The third Complete Layer 3 wraps back to msc 0 */ + {0, 1, 0}, + "cnpool:subscr:reattach"); + f_shutdown_helper(); +} + +/* Three Layer 3 Complete by TMSI are round-robin'ed across two connected MSCs, because they contain an NRI not + * assigned to any MSC (configured in osmo-hnbgw.cfg). */ +testcase TC_mscpool_L3Complete_by_tmsi_unassigned_nri_round_robin() runs on test_CT { + f_TC_cnpool_L3Complete_by_tmsi_unassigned_nri_round_robin(ps_domain := false); +} +function f_TC_cnpool_L3Complete_by_tmsi_unassigned_nri_round_robin(boolean ps_domain) runs on test_CT { + + f_init(nr_msc := 2, nr_sgsn := 2); + f_sleep(1.0); + + /* Control which MSC gets chosen next by the round-robin, otherwise + * would be randomly affected by which other tests ran before this. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + f_ctrs_cn_init(ps_domain := ps_domain); + + /* 3 NRIs that are not assigned to any MSC */ + var ro_MobileIdentityLV mis := { + valueof(ts_MI_TMSI_NRI_LV(1000)), + valueof(ts_MI_TMSI_NRI_LV(768)), + valueof(ts_MI_TMSI_NRI_LV(819)) + }; + + var ro_octetstring compl3 := f_gen_compl3_by_domain(ps_domain, 3, mis); + f_TC_cnpool_compl_l3_list(ps_domain, compl3, { 0, 1, 0 }, "cnpool:subscr:new"); + + f_shutdown_helper(); +} + +/* Three Layer 3 Complete by TMSI are round-robin'ed across two connected MSCs, because they contain an NRI + * assigned to a CN link that is currently not connected (configured in osmo-hnbgw.cfg). */ +testcase TC_mscpool_L3Complete_by_tmsi_valid_nri_msc_not_connected_round_robin() runs on test_CT { + f_TC_cnpool_L3Complete_by_tmsi_valid_nri_msc_not_connected_round_robin(ps_domain := false); +} +function f_TC_cnpool_L3Complete_by_tmsi_valid_nri_msc_not_connected_round_robin(boolean ps_domain) runs on test_CT { + + f_init(nr_msc := 2, nr_sgsn := 2); + f_sleep(1.0); + + /* Control which MSC gets chosen next by the round-robin, otherwise + * would be randomly affected by which other tests ran before this. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + f_ctrs_cn_init(ps_domain := ps_domain); + + /* 3 NRIs that are assigned to an unconnected MSC */ + var ro_MobileIdentityLV mis := { + valueof(ts_MI_TMSI_NRI_LV(512)), + valueof(ts_MI_TMSI_NRI_LV(767)), + valueof(ts_MI_TMSI_NRI_LV(750)) + }; + + var ro_octetstring compl3 := f_gen_compl3_by_domain(ps_domain, 3, mis); + + f_TC_cnpool_compl_l3(ps_domain, compl3[0], cn_nr := 0); + f_ctrs_cn_add(2, "cnpool:subscr:attach_lost"); + f_ctrs_cn_add(0, "cnpool:subscr:new"); + f_ctrs_cn_verify(); + + f_TC_cnpool_compl_l3(ps_domain, compl3[1], cn_nr := 1); + f_ctrs_cn_add(2, "cnpool:subscr:attach_lost"); + f_ctrs_cn_add(1, "cnpool:subscr:new"); + f_ctrs_cn_verify(); + + f_TC_cnpool_compl_l3(ps_domain, compl3[2], cn_nr := 0); + f_ctrs_cn_add(2, "cnpool:subscr:attach_lost"); + f_ctrs_cn_add(0, "cnpool:subscr:new"); + f_ctrs_cn_verify(); + + f_shutdown_helper(); +} + +/* Three Layer 3 Complete by TMSI with valid NRI for the second MSC are all directed to the second MSC (configured in + * osmo-hnbgw.cfg). */ +testcase TC_mscpool_L3Complete_by_tmsi_valid_nri_1() runs on test_CT { + f_TC_cnpool_L3Complete_valid_nri_1(ps_domain := false); +} +testcase TC_sgsnpool_L3Complete_valid_nri_1() runs on test_CT { + f_TC_cnpool_L3Complete_valid_nri_1(ps_domain := true); +} +function f_TC_cnpool_L3Complete_valid_nri_1(boolean ps_domain) runs on test_CT { + + f_init(nr_msc := 2, nr_sgsn := 2); + f_sleep(1.0); + + /* All TMSIs in this test point at the second MSC, set the round robin to point at the first MSC to make sure + * this is not using round-robin. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + f_ctrs_cn_init(ps_domain := ps_domain); + + var ro_octetstring compl3; + + /* 3 NRIs of the second MSC's range (256-511) */ + var ro_MobileIdentityLV mis := { + valueof(ts_MI_TMSI_NRI_LV(256)), + valueof(ts_MI_TMSI_NRI_LV(260)), + valueof(ts_MI_TMSI_NRI_LV(511)) + }; + if (ps_domain) { + compl3 := { + f_gen_one_compl_l3(RAUREQ, mis[0], 256), + f_gen_one_compl_l3(RAUREQ, mis[1], 260), + f_gen_one_compl_l3(RAUREQ, mis[2], 511) + }; + } else { + compl3 := f_gen_compl3_by_domain(ps_domain, 3, mis); + } + + f_TC_cnpool_compl_l3_list(ps_domain, compl3, {1, 1, 1}, "cnpool:subscr:known"); + + f_shutdown_helper(); +} + +/* Layer 3 Complete by TMSI with valid NRI for the third MSC are directed to the third MSC (configured in osmo-hnbgw.cfg), + * while a round-robin remains unaffected by that. */ +testcase TC_mscpool_L3Complete_by_tmsi_valid_nri_2() runs on test_CT { + f_TC_cnpool_L3Complete_valid_nri_2(ps_domain := false); +} +testcase TC_sgsnpool_L3Complete_valid_nri_2() runs on test_CT { + f_TC_cnpool_L3Complete_valid_nri_2(ps_domain := true); +} +function f_TC_cnpool_L3Complete_valid_nri_2(boolean ps_domain) runs on test_CT { + + f_init(nr_msc := 3, nr_sgsn := 3); + f_sleep(1.0); + + /* All TMSIs in this test point at the third MSC, set the round robin to point at the second MSC to make sure + * this is not using round-robin. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 1); + + f_ctrs_cn_init(ps_domain := ps_domain); + + var ro_octetstring compl3; + + /* 2 NRIs of the third MSC's range (512-767) */ + var ro_MobileIdentityLV mis := { + valueof(ts_MI_TMSI_NRI_LV(512)), + valueof(ts_MI_TMSI_NRI_LV(678)) + }; + if (ps_domain) { + compl3 := { + f_gen_one_compl_l3(ATTACHREQ, mis[0], 512), + f_gen_one_compl_l3(ATTACHREQ, mis[1], 678) + }; + } else { + compl3 := f_gen_compl3_by_domain(ps_domain, 2, mis); + } + + f_TC_cnpool_compl_l3_list(ps_domain, compl3, {2, 2}, "cnpool:subscr:known"); + + /* The above forwardings to third MSC have not affected the round robin, which still points at the second MSC */ + f_TC_cnpool_compl_l3_list(ps_domain, f_gen_compl3_by_domain(ps_domain, 1), {1}, "cnpool:subscr:new"); + + f_shutdown_helper(); +} + +/* LU with a TMSI but indicating a different PLMN in its previous LAI: ignore the NRI. */ +testcase TC_mscpool_LU_by_tmsi_from_other_PLMN() runs on test_CT { + f_TC_cnpool_nri_from_other_PLMN(ps_domain := false); +} +testcase TC_sgsnpool_nri_from_other_PLMN() runs on test_CT { + f_TC_cnpool_nri_from_other_PLMN(ps_domain := true); +} +function f_TC_cnpool_nri_from_other_PLMN(boolean ps_domain) runs on test_CT { + + f_init(nr_msc := 3, nr_sgsn := 3); + f_sleep(1.0); + + /* The TMSIs in this test points at the second MSC, but since it is from a different PLMN, round-robin is used + * instead, and hits msc 0. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + f_ctrs_cn_init(ps_domain := ps_domain); + + var ro_octetstring compl3; + + var ro_MobileIdentityLV mis := { + valueof(ts_MI_TMSI_NRI_LV(260)), + valueof(ts_MI_TMSI_NRI_LV(555)) + }; + if (ps_domain) { + compl3 := { + /* An NRI of the second MSC's range (256-511), but a PLMN that doesn't match with osmo-hnbgw.cfg */ + enc_PDU_L3_MS_SGSN(valueof(ts_GMM_ATTACH_REQ(mis[0], f_RAI('999'H, '99'H, '2a2a'O, + '17'O), + nri := ts_GMM_NRI(260) + ))), + /* An NRI of the third MSC's range (512-767) and a matching PLMN gets directed by NRI. */ + f_gen_one_compl_l3(ATTACHREQ, mis[1], 555) + } + } else { + compl3 := { + /* An NRI of the second MSC's range (256-511), but a PLMN that doesn't match with osmo-hnbgw.cfg */ + enc_PDU_ML3_MS_NW(valueof(ts_LU_REQ(LU_Type_IMSI_Attach, mis[0], '99F999'O))), + /* An NRI of the third MSC's range (512-767) and a matching PLMN gets directed by NRI. */ + enc_PDU_ML3_MS_NW(valueof(ts_LU_REQ(LU_Type_IMSI_Attach, mis[1], '00F110'O))) + }; + } + + /* Foreign NRI: roundrobin */ + f_TC_cnpool_compl_l3(ps_domain, compl3[0], cn_nr := 0, inc_countername := "cnpool:subscr:new"); + + /* Local NRI: matching msc */ + f_TC_cnpool_compl_l3(ps_domain, compl3[1], cn_nr := 2, inc_countername := "cnpool:subscr:known"); + + f_shutdown_helper(); +} + +/* Make sure that whichever MSC paged a subscriber will also get the Paging Response. Page by IMSI, which would be + * round-robined to another MSC, to make sure the Paging->Response relation is stronger than the NRI->MSC mapping. */ +friend function f_tc_mscpool_paging_imsi(charstring id, TestHdlrParams pars) runs on ConnHdlr { + f_init_handler(pars); + + var hexstring imsi := '001010000000123'H; + var RANAP_IEs.CN_DomainIndicator domain_ind; + if (pars.ps_domain) { + domain_ind := ps_domain; + } else { + domain_ind := cs_domain; + } + var template (value) RANAP_PDU paging := ts_RANAP_Paging(domain_ind, imsi_hex2oct(imsi)); + BSSAP.send(ts_RANAP_UNITDATA_req(pars.sccp_addr_hnbgw, pars.sccp_addr_msc, paging)); + /* TODO: Expect RUA ConnectionlessTransfer Paging (on all HNB). + * We could verify the Paging sent from osmo-hnbgw to RUA with some effort, + * but, this test does not care whether the Paging was forwarded to RUA or not, only that osmo-hnbgw *received* + * the Paging. In the CN pool decisions, osmo-hnbgw should match up Paging Response to an earlier Paging. + */ + + f_sleep(1.0); + + /* Despite the round robin pointing at the second MSC ('roundrobin next msc 1'), the earlier Paging for the same IMSI + * causes this Paging Response to go to the first MSC ('msc 0'). */ + f_perform_compl_l3(f_gen_one_compl_l3(PAGRESP, ts_MI_IMSI_LV(imsi))); + f_sleep(1.0); +} + +testcase TC_mscpool_paging_imsi() runs on test_CT { + f_init(nr_msc := 3); + f_sleep(1.0); + + var boolean ps_domain := false; + + /* Testing a Paging on the first MSC to get a Paging Response back to the first MSC. Set round robin to the + * second MSC to make sure we're getting the Paging logic, not a coincidental round robin match. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + f_ctrs_cn_init(ps_domain := ps_domain); + + var ConnHdlr vc_conn1; + var template (value) TestHdlrParams pars1 := t_pars(0, ps_domain := ps_domain, cn_nr := 0); + pars1.sccp_addr_hnbgw := g_cn[valueof(pars1.cn_idx)].sccp_addr_peer; + pars1.sccp_addr_msc := g_cn[valueof(pars1.cn_idx)].sccp_addr_own; + vc_conn1 := f_start_handler_with_pars(refers(f_tc_mscpool_paging_imsi), pars1); + vc_conn1.done; + f_ctrs_cn_expect(0, "cnpool:subscr:paged"); + f_shutdown_helper(); +} + +/* Make sure that whichever MSC paged a subscriber will also get the Paging Response. Page by TMSI with an NRI value + * that matches a different MSC, to make sure the Paging->Response relation is stronger than the NRI->MSC mapping. */ +friend function f_tc_mscpool_paging_tmsi(charstring id, TestHdlrParams pars) runs on ConnHdlr { + f_init_handler(pars); + + var hexstring imsi := '001010000000124'H; + var integer nri_v := 300; /* <-- second MSC's NRI */ + var octetstring tmsi := f_gen_tmsi(suffix := 0, nri_v := nri_v); + + var RANAP_IEs.CN_DomainIndicator domain_ind; + if (pars.ps_domain) { + domain_ind := ps_domain; + } else { + domain_ind := cs_domain; + } + var template (value) RANAP_PDU paging := ts_RANAP_Paging_temp_id(domain_ind, imsi_hex2oct(imsi), + ts_RANAP_TemporaryUE_ID_TMSI(tmsi)); + BSSAP.send(ts_RANAP_UNITDATA_req(pars.sccp_addr_hnbgw, pars.sccp_addr_msc, paging)); + /* TODO: Expect RUA ConnectionlessTransfer Paging (on all HNB). + * We could verify the Paging sent from osmo-hnbgw to RUA with some effort, + * but, this test does not care whether the Paging was forwarded to RUA or not, only that osmo-hnbgw *received* + * the Paging. In the CN pool decisions, osmo-hnbgw should match up Paging Response to an earlier Paging. + */ + + f_sleep(1.0); + + /* Despite the round robin pointing at the third MSC ('roundrobin next msc 2'), the earlier Paging for the same + * TMSI causes this Paging Response to go to the first MSC ('msc 0'). */ + f_perform_compl_l3(f_gen_one_compl_l3(PAGRESP, ts_MI_TMSI_NRI_LV(nri_v))); + f_sleep(1.0); +} +testcase TC_mscpool_paging_tmsi() runs on test_CT { + f_init(nr_msc := 3); + f_sleep(1.0); + + var boolean ps_domain := false; + + /* Testing a Paging on the first MSC to get a Paging Response back to the first MSC. Set round robin to the + * third MSC to make sure we're getting the Paging logic, not a coincidental round robin match. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + f_ctrs_cn_init(ps_domain := ps_domain); + + var ConnHdlr vc_conn1; + var template (value) TestHdlrParams pars1 := t_pars(0, ps_domain := ps_domain, cn_nr := 0); + pars1.sccp_addr_hnbgw := g_cn[valueof(pars1.cn_idx)].sccp_addr_peer; + pars1.sccp_addr_msc := g_cn[valueof(pars1.cn_idx)].sccp_addr_own; + vc_conn1 := f_start_handler_with_pars(refers(f_tc_mscpool_paging_tmsi), pars1); + vc_conn1.done; + f_ctrs_cn_expect(0, "cnpool:subscr:paged"); + f_shutdown_helper(); +} + +/* For round-robin, skip a CN link that has 'no allow-attach' set. */ +testcase TC_mscpool_no_allow_attach_round_robin() runs on test_CT { + + f_init(nr_msc := 3); + f_sleep(1.0); + + var boolean ps_domain := false; + + /* Mark the second MSC as offloading, round-robin should skip this MSC now. */ + f_vty_cnlink_allow_attach(HNBGWVTY, ps_domain, {true, false, true}); + + /* Control which MSC gets chosen next by the round-robin, otherwise + * would be randomly affected by which other tests ran before this. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + f_ctrs_cn_init(ps_domain := ps_domain); + + f_TC_cnpool_compl_l3_list(ps_domain, f_gen_compl3_by_domain(ps_domain, 3), + /* msc 1 is skipped */ + {0, 2, 0}, + "cnpool:subscr:new"); + + f_shutdown_helper(); +} + +/* An MSC that has 'no allow-attach' set should still serve subscribers that are already attached according to their + * TMSI NRI. */ +testcase TC_mscpool_no_allow_attach_valid_nri() runs on test_CT { + + f_init(nr_msc := 3); + f_sleep(1.0); + + var boolean ps_domain := false; + + /* Mark the second MSC as offloading, round-robin should skip this MSC now. */ + f_vty_cnlink_allow_attach(HNBGWVTY, ps_domain, {true, false, true}); + + /* Control which MSC gets chosen next by the round-robin, otherwise + * would be randomly affected by which other tests ran before this. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + f_ctrs_cn_init(ps_domain := ps_domain); + + var ro_MobileIdentityLV mis := { + valueof(ts_MI_TMSI_NRI_LV(260)), + valueof(ts_MI_IMSI_LV('001010000000002'H)), + valueof(ts_MI_IMSI_LV('001010000000003'H)) + }; + + var ro_octetstring compl3 := f_gen_compl3_by_domain(ps_domain, 3, mis); + + /* Round robin points at msc 0, but the valid NRI directs to msc 1, even though msc 1 has 'no allow-attach'. */ + f_TC_cnpool_compl_l3(ps_domain, compl3[0], cn_nr := 1, inc_countername := "cnpool:subscr:known"); + + /* Normal round robin skips msc 1, because it has 'no allow-attach' */ + f_TC_cnpool_compl_l3(ps_domain, compl3[1], cn_nr := 0, inc_countername := "cnpool:subscr:new"); + f_TC_cnpool_compl_l3(ps_domain, compl3[2], cn_nr := 2, inc_countername := "cnpool:subscr:new"); + + f_shutdown_helper(); +} + +/* When a peer point-code gets an SCCP N-PCSTATE saying it is unreachable, immediately mark the CN link as unusable. */ +testcase TC_mscpool_sccp_n_pcstate_detaches_cnlink() runs on test_CT { + f_TC_cnpool_sccp_n_pcstate_detaches_cnlink(ps_domain := false); +} +testcase TC_sgsnpool_sccp_n_pcstate_detaches_cnlink() runs on test_CT { + f_TC_cnpool_sccp_n_pcstate_detaches_cnlink(ps_domain := true); +} +function f_TC_cnpool_sccp_n_pcstate_detaches_cnlink(boolean ps_domain) runs on test_CT +{ + + f_init(nr_msc := 2, nr_sgsn := 2); + f_sleep(1.0); + + /* Control which MSC gets chosen next by the round-robin, otherwise + * would be randomly affected by which other tests ran before this. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + f_ctrs_cn_init(ps_domain := ps_domain); + + var ro_octetstring compl3 := f_gen_compl3_by_domain(ps_domain, 3); + + f_TC_cnpool_compl_l3(ps_domain, compl3[0], cn_nr := 0, inc_countername := "cnpool:subscr:new"); + f_TC_cnpool_compl_l3(ps_domain, compl3[1], cn_nr := 1, inc_countername := "cnpool:subscr:new"); + + f_logp(HNBGWVTY, "disconnecting msc0"); + f_cn_idx_disconnect(f_cn_idx(ps_domain, 0)); + + /* Now round-robin would wrap to the first MSC, but since the first MSC is disconnected, it wraps around to the + * second. */ + f_TC_cnpool_compl_l3(ps_domain, compl3[2], cn_nr := 1, inc_countername := "cnpool:subscr:new"); + + f_shutdown_helper(); +} + +/* When a CN link point-code gets an SCCP N-PCSTATE saying it is now reachable, immediately trigger RESET and bring up the + * MSC. */ +testcase TC_mscpool_sccp_n_pcstate_attaches_cnlink() runs on test_CT { + f_TC_cnpool_sccp_n_pcstate_attaches_cnlink(ps_domain := false); +} +testcase TC_sgsnpool_sccp_n_pcstate_attaches_cnlink() runs on test_CT { + f_TC_cnpool_sccp_n_pcstate_attaches_cnlink(ps_domain := true); +} +function f_TC_cnpool_sccp_n_pcstate_attaches_cnlink(boolean ps_domain) runs on test_CT +{ + f_init(nr_msc := 1, nr_sgsn := 1); + f_sleep(1.0); + + /* Control which MSC gets chosen next by the round-robin, otherwise + * would be randomly affected by which other tests ran before this. */ + f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0); + + var ro_octetstring compl3 := f_gen_compl3_by_domain(ps_domain, 3); + + f_ctrs_cn_init(ps_domain := ps_domain); + + /* There is only one MSC, round robin stays on msc0 */ + f_TC_cnpool_compl_l3(ps_domain := ps_domain, nas_pdu := compl3[0], cn_nr := 0, inc_countername := "cnpool:subscr:new"); + f_TC_cnpool_compl_l3(ps_domain := ps_domain, nas_pdu := compl3[1], cn_nr := 0, inc_countername := "cnpool:subscr:new"); + + f_logp(HNBGWVTY, "connecting cnlink 1"); + f_cn_nr_init(ps_domain, 1); + f_vty_cnlink_allow_attach(HNBGWVTY, ps_domain, { true, true }); + f_sleep(1.0); + + /* This time round-robin wraps to the second MSC, because it is now online. */ + f_TC_cnpool_compl_l3(ps_domain := ps_domain, nas_pdu := compl3[2], cn_nr := 1, inc_countername := "cnpool:subscr:new"); + + f_shutdown_helper(); +} + +private function f_vty_add_sccp_addr(TELNETasp_PT pt, charstring addr_name, charstring pc, integer cs7_nr := 0) +{ + f_vty_enter_config(pt); + f_vty_transceive(pt, "cs7 instance 0"); + f_vty_transceive(pt, "sccp-address " & addr_name); + f_vty_transceive(pt, "point-code " & pc); + f_vty_transceive(pt, "end"); +} + +private function f_vty_set_cnlink_addr(TELNETasp_PT pt, charstring cnlink_and_nr, charstring addr_name) +{ + f_vty_enter_config(pt); + f_vty_transceive(pt, cnlink_and_nr); + f_vty_transceive(pt, "remote-addr " & addr_name); + f_vty_transceive(pt, "end"); +} + +private function f_vty_apply_sccp(TELNETasp_PT pt) +{ + f_vty_enter_config(pt); + f_vty_transceive(pt, "apply sccp"); + f_vty_transceive(pt, "end"); +} + +template (present) RUA_Disc_Req tr_RUA_Disc_Req := { + ranap := ?, + cause := ? +}; + +/* With a cnlink up, change the SCCP address, and verify that it restarts upon vty 'apply sccp' */ +private function f_tc_apply_sccp(charstring id, TestHdlrParams pars) runs on ConnHdlr +{ + f_init_handler(pars); + f_perform_compl_l3(f_gen_compl3_by_domain(pars.ps_domain, 1)[0]); + + f_sleep(1.0); + f_logp(HNBGWVTY, "Changing SCCP address, don't apply yet"); + + f_vty_add_sccp_addr(HNBGWVTY, "msc-foo", "0.42.4"); + f_vty_set_cnlink_addr(HNBGWVTY, "msc 0", "msc-foo"); + + /* No effect yet, link still open both ways */ + f_sleep(1.0); + f_iuh2iu(ts_RANAP_DirectTransfer(f_rnd_octstring(10))); + f_iu2iuh(ts_RANAP_DirectTransfer(f_rnd_octstring(10))); + + f_logp(HNBGWVTY, "Apply SCCP address changes"); + f_vty_apply_sccp(HNBGWVTY); + + /* We modified the SCCP configuration, expect disconnect of UE that was active on the aborted link. */ + RUA.receive(RUA_Disc_Ind:?); + BSSAP.receive(RAN_Conn_Prim:MSC_CONN_PRIM_DISC_IND); + + /* Would be nice to test reconnection on the other point-code, too. That would require another cnlink in + * osmo-stp.cfg and module parameters... */ + + f_sleep(1.0); +} +testcase TC_apply_sccp() runs on test_CT +{ + f_init(); + f_sleep(1.0); + + var ConnHdlr vc_conn; + var template (value) TestHdlrParams pars := t_pars(0); + vc_conn := f_start_handler_with_pars(refers(f_tc_apply_sccp), pars); + vc_conn.done; + + f_shutdown_helper(); +} + +/* In the field, we encountered a "normal" RAB Assignment that concludes successfully, followed by another RAB + * Assignment that has different SDU subflow parameters, and does not contain RTP information. At the time of writing, + * it seems that the second RAB Assignment causes a crash. Play through this scenario. */ +friend function f_tc_second_rab_assignment(charstring id, TestHdlrParams pars) runs on ConnHdlr { + var MgcpCommand mgcp_cmd; + var RANAP_PDU tx; + timer T := 5.0; + + f_init_handler(pars); + f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); + + tx := f_build_initial_ue(g_pars); + f_iuh2iu_connect(tx); + + f_create_rab(pars.mgcp_pars); + + /* Now send a second RAB Assignment with different subflows and omitting transportLayerInformation. (Assuming + * the first RAB Assignment's transportLayerInformation remains in use unchanged.) */ + var template RAB_SetupOrModifyList rab_sml; + rab_sml := ts_RAB_SML2(t_RAB_id(23), + ts_RabParams, + user_plane_info := omit, + transport_layer_info := omit); + tx := valueof(ts_RANAP_RabAssReq(rab_sml)); + BSSAP.send(tx); + T.start; + + /* Expect this secondary RAB Assignment to go through unchanged. */ + f_rua_expect(tx); + + /* I'm guessing that the RAB Assignment Response also omits transportLayerInformation, so far not known because + * osmo-hnbgw crashed before we could receive the response. */ + + /* Send back RAB Assignment Response via Iuh */ + var template RAB_SetupOrModifiedList rab_smdl; + rab_smdl := ts_RAB_SMdL_no_tla(t_RAB_id(23)); + tx := valueof(ts_RANAP_RabAssResp(rab_smdl)); + RUA.send(tx); + f_bssap_expect(tx); + + /* Send Iu Release */ + tx := valueof(ts_RANAP_IuReleaseCommand(pars.rab_rel_cause)); + f_iu2iuh(tx); + + T.start; + alt { + [] as_mgcp_dlcx(pars) {} + [] T.timeout { + setverdict(fail, "Timeout waiting for DLCX"); + } + } + + tx := valueof(ts_RANAP_IuReleaseComplete()); + f_iuh2iu(tx); +} + +testcase TC_second_rab_assignment() runs on test_CT { + var ConnHdlr vc_conn; + g_num_hnbs := 1; + f_init(); + + vc_conn := f_start_handler_with_pars(refers(f_tc_second_rab_assignment), t_pars(3)); + vc_conn.done; + + f_shutdown_helper(); +} + +control { + execute(TC_hnb_register()); + execute(TC_hnb_register_duplicate()); + execute(TC_hnb_register_duplicate_reuse_sctp_assoc()); + execute(TC_hnb_disconnected_timeout()); + execute(TC_ue_register()); + execute(TC_ue_register_tmsi_lai()); + execute(TC_ue_register_before_hnb_register()); + execute(TC_ranap_cs_initial_ue()); + execute(TC_ranap_ps_initial_ue()); + execute(TC_ranap_cs_initial_ue_empty_cr()); + execute(TC_ranap_ps_initial_ue_empty_cr()); + execute(TC_ranap_cs_bidir()); + execute(TC_ranap_ps_bidir()); + execute(TC_rab_assignment()); + execute(TC_rab_release()); + execute(TC_rab_release_abnormal()); + 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()); + + if (mp_enable_pfcp_tests) { + execute(TC_ps_rab_assignment_with_pfcp()); + } else { + execute(TC_ps_rab_assignment_without_pfcp()); + } + + execute( TC_mscpool_L3Compl_on_1_cnlink() ); + execute( TC_mscpool_L3Complete_by_imsi_round_robin() ); + execute( TC_mscpool_LU_by_tmsi_null_nri_0_round_robin() ); + execute( TC_mscpool_LU_by_tmsi_null_nri_1_round_robin() ); + execute( TC_mscpool_L3Complete_by_tmsi_unassigned_nri_round_robin() ); + execute( TC_mscpool_L3Complete_by_tmsi_valid_nri_msc_not_connected_round_robin() ); + execute( TC_mscpool_L3Complete_by_tmsi_valid_nri_1() ); + execute( TC_mscpool_L3Complete_by_tmsi_valid_nri_2() ); + execute( TC_mscpool_LU_by_tmsi_from_other_PLMN() ); + execute( TC_mscpool_paging_imsi() ); + execute( TC_mscpool_paging_tmsi() ); + execute( TC_mscpool_no_allow_attach_round_robin() ); + execute( TC_mscpool_no_allow_attach_valid_nri() ); + execute( TC_mscpool_sccp_n_pcstate_detaches_cnlink() ); + execute( TC_mscpool_sccp_n_pcstate_attaches_cnlink() ); + + execute( TC_sgsnpool_L3Compl_on_1_cnlink() ); + execute( TC_sgsnpool_L3Complete_no_nri_round_robin() ); + execute( TC_sgsnpool_L3Complete_valid_nri_1() ); + execute( TC_sgsnpool_L3Complete_valid_nri_2() ); + execute( TC_sgsnpool_nri_from_other_PLMN() ); + execute( TC_sgsnpool_sccp_n_pcstate_detaches_cnlink() ); + execute( TC_sgsnpool_sccp_n_pcstate_attaches_cnlink() ); + + execute(TC_second_rab_assignment()); + execute(TC_hnb_reregister_reuse_sctp_assoc()); + + /* Run at the end since it messes with the SCCP config */ + execute( TC_apply_sccp() ); +} + +} |