| module BSC_Tests { |
| |
| /* Integration Tests for OsmoBSC |
| * (C) 2017-2018 by Harald Welte <laforge@gnumonks.org> |
| * All rights reserved. |
| * |
| * Released under the terms of GNU General Public License, Version 2 or |
| * (at your option) any later version. |
| * |
| * This test suite tests OsmoBSC while emulating both multiple BTS + MS as |
| * well as the MSC. See README for more details. |
| * |
| * There are test cases that run in so-called 'handler mode' and test cases |
| * that run directly on top of the BSSAP and RSL CodecPorts. The "handler mode" |
| * tests abstract the multiplexing/demultiplexing of multiple SCCP connections |
| * and/or RSL channels and are hence suitable for higher-level test cases, while |
| * the "raw" tests directly on top of the CodecPorts are more suitable for lower- |
| * level testing. |
| */ |
| |
| import from General_Types all; |
| import from Osmocom_Types all; |
| import from GSM_Types all; |
| import from IPL4asp_Types all; |
| |
| import from BSSAP_Types all; |
| import from BSSAP_Adapter all; |
| import from BSSAP_CodecPort all; |
| import from BSSMAP_Templates all; |
| import from IPA_Emulation all; |
| import from IPA_CodecPort all; |
| import from IPA_Types all; |
| import from IPA_Testing all; |
| import from RSL_Types all; |
| import from RSL_Emulation all; |
| import from MGCP_Emulation all; |
| import from MGCP_Templates all; |
| import from MGCP_Types all; |
| |
| import from Osmocom_CTRL_Functions all; |
| import from Osmocom_CTRL_Types all; |
| import from Osmocom_CTRL_Adapter all; |
| |
| import from Osmocom_VTY_Functions all; |
| import from TELNETasp_PortType all; |
| |
| import from MobileL3_CommonIE_Types all; |
| import from MobileL3_Types all; |
| import from MobileL3_RRM_Types all; |
| import from L3_Templates all; |
| import from GSM_RR_Types all; |
| |
| import from SCCP_Templates all; |
| import from BSSMAP_Templates all; |
| |
| import from SCCPasp_Types all; |
| |
| const integer NUM_BTS := 3; |
| const float T3101_MAX := 12.0; |
| |
| /* make sure to sync this with the osmo-bts.cfg you're using */ |
| const integer NUM_TCHH_PER_BTS := 2; |
| const integer NUM_TCHF_PER_BTS := 4; |
| const integer NUM_SDCCH_PER_BTS := 4; |
| |
| |
| /* per-BTS state which we keep */ |
| type record BTS_State { |
| /* component reference to the IPA_Client component used for RSL */ |
| IPA_Client rsl |
| } |
| |
| type component test_CT extends CTRL_Adapter_CT { |
| /* Array of per-BTS state */ |
| var BTS_State bts[NUM_BTS]; |
| /* RSL common Channel Port (for RSL_Emulation) */ |
| port RSL_CCHAN_PT RSL_CCHAN[NUM_BTS]; |
| /* array of per-BTS RSL test ports */ |
| port IPA_RSL_PT IPA_RSL[NUM_BTS]; |
| port IPA_CODEC_PT IPA; /* Required for compilation of TC_rsl_unknown_unit_id() */ |
| |
| var MGCP_Emulation_CT vc_MGCP; |
| port TELNETasp_PT BSCVTY; |
| |
| var BSSAP_Adapter g_bssap; |
| /* for old legacy-tests only */ |
| port BSSAP_CODEC_PT BSSAP; |
| |
| /* are we initialized yet */ |
| var boolean g_initialized := false; |
| |
| /* global test case guard timer */ |
| timer T_guard := 30.0; |
| |
| } |
| |
| modulepar { |
| /* IP address at which the BSC can be reached */ |
| charstring mp_bsc_ip := "127.0.0.1"; |
| /* port number to which to establish the IPA OML connections */ |
| integer mp_bsc_oml_port := 3002; |
| /* port number to which to establish the IPA RSL connections */ |
| integer mp_bsc_rsl_port := 3003; |
| /* port number to which to establish the IPA CTRL connection */ |
| integer mp_bsc_ctrl_port := 4249; |
| /* IP address at which the test binds */ |
| charstring mp_test_ip := "127.0.0.1"; |
| |
| BSSAP_Configuration mp_bssap_cfg := { |
| transport := BSSAP_TRANSPORT_AoIP, |
| sccp_service_type := "mtp3_itu", |
| sctp_addr := { 23905, "127.0.0.1", 2905, "127.0.0.1" }, |
| own_pc := 185, |
| own_ssn := 254, |
| peer_pc := 187, |
| peer_ssn := 254, |
| sio := '83'O, |
| rctx := 0 |
| }; |
| } |
| |
| private function f_gen_test_hdlr_pars() return TestHdlrParams { |
| |
| var TestHdlrParams pars := valueof(t_def_TestHdlrPars); |
| if (mp_bssap_cfg.transport == BSSAP_TRANSPORT_AoIP) { |
| pars.aoip := true; |
| } else { |
| pars.aoip := false; |
| } |
| |
| return pars; |
| } |
| |
| private function f_shutdown_helper() runs on test_CT { |
| all component.stop; |
| setverdict(pass); |
| mtc.stop; |
| } |
| |
| private function f_legacy_bssap_reset() runs on test_CT { |
| var BSSAP_N_UNITDATA_ind ud_ind; |
| timer T := 5.0; |
| BSSAP.send(ts_BSSAP_UNITDATA_req(g_bssap.sccp_addr_peer, g_bssap.sccp_addr_own, ts_BSSMAP_Reset(0))); |
| T.start; |
| alt { |
| [] BSSAP.receive(tr_BSSAP_UNITDATA_ind(g_bssap.sccp_addr_own, g_bssap.sccp_addr_peer, tr_BSSMAP_ResetAck)) { |
| log("Received RESET-ACK in response to RESET, we're ready to go!"); |
| } |
| [] BSSAP.receive(tr_BSSAP_UNITDATA_ind(?, ?, tr_BSSMAP_Reset)) -> value ud_ind { |
| log("Respoding to inbound RESET with RESET-ACK"); |
| BSSAP.send(ts_BSSAP_UNITDATA_req(ud_ind.callingAddress, ud_ind.calledAddress, |
| ts_BSSMAP_ResetAck)); |
| repeat; |
| } |
| [] BSSAP.receive { repeat; } |
| [] T.timeout { setverdict(fail, "Waiting for RESET-ACK after sending RESET"); } |
| } |
| } |
| |
| type record IPA_Client { |
| /* IPA Emulation component reference */ |
| IPA_Emulation_CT vc_IPA, |
| /* Unit-ID and other CCM parameters to use for IPA client emulation */ |
| IPA_CCM_Parameters ccm_pars, |
| /* String identifier for this IPA Client */ |
| charstring id, |
| /* Associated RSL Emulation Component (if any). Only used in "Handler mode" */ |
| RSL_Emulation_CT vc_RSL optional |
| } |
| |
| /*! Start the IPA/RSL related bits for one IPA_Client. |
| * \param clnt IPA_Client for which to establish |
| * \param bsc_host IP address / hostname of the BSC |
| * \param bsc_port TCP port number of the BSC |
| * \param i number identifying this BTS |
| * \param handler_mode Start an RSL_Emulation_CT component (true) or not (false) */ |
| function f_ipa_rsl_start(inout IPA_Client clnt, charstring bsc_host, PortNumber bsc_port, integer i, |
| boolean handler_mode := false) |
| runs on test_CT { |
| timer T := 10.0; |
| |
| clnt.id := "IPA" & int2str(i) & "-RSL"; |
| clnt.vc_IPA := IPA_Emulation_CT.create(clnt.id & "-IPA"); |
| clnt.ccm_pars := c_IPA_default_ccm_pars; |
| clnt.ccm_pars.name := "Osmocom TTCN-3 BTS Simulator"; |
| clnt.ccm_pars.unit_id := int2str(1234+i) & "/0/0"; |
| if (handler_mode) { |
| clnt.vc_RSL := RSL_Emulation_CT.create(clnt.id & "-RSL"); |
| connect(clnt.vc_RSL:CCHAN_PT, self:RSL_CCHAN[i]); |
| } |
| |
| map(clnt.vc_IPA:IPA_PORT, system:IPA_CODEC_PT); |
| if (handler_mode) { |
| connect(clnt.vc_IPA:IPA_RSL_PORT, clnt.vc_RSL:IPA_PT); |
| } else { |
| connect(clnt.vc_IPA:IPA_RSL_PORT, self:IPA_RSL[i]); |
| } |
| |
| clnt.vc_IPA.start(IPA_Emulation.main_client(bsc_host, bsc_port, "", 10000+i, clnt.ccm_pars)); |
| if (handler_mode) { |
| clnt.vc_RSL.start(RSL_Emulation.main()); |
| return; |
| } |
| |
| /* wait for IPA RSL link to connect and send ID ACK */ |
| T.start; |
| alt { |
| [] IPA_RSL[i].receive(ASP_IPA_Event:{up_down := ASP_IPA_EVENT_ID_ACK}) { |
| T.stop; |
| IPA_RSL[i].send(ts_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0,ts_RSL_PAGING_LOAD_IND(23))); |
| } |
| [] IPA_RSL[i].receive(ASP_IPA_Event:?) { repeat } |
| [] IPA_RSL[i].receive { repeat } |
| [] T.timeout { |
| setverdict(fail, "Timeout RSL waiting for ASP_IPA_EVENT_ID_ACK"); |
| mtc.stop; |
| } |
| } |
| } |
| |
| function f_ipa_rsl_stop(inout IPA_Client clnt) runs on test_CT { |
| if (not isbound(clnt) or not isbound(clnt.vc_IPA)) { |
| return; |
| } |
| clnt.vc_IPA.stop; |
| if (isbound(clnt.vc_RSL)) { |
| clnt.vc_RSL.stop; |
| } |
| } |
| |
| /* Wait for the OML connection to be brought up by the external osmo-bts-omldummy */ |
| function f_wait_oml(integer bts_nr, charstring status, float secs_max) runs on test_CT { |
| timer T := secs_max; |
| T.start; |
| while (true) { |
| if (f_ctrl_get_bts(IPA_CTRL, bts_nr, "oml-connection-state") == status) { |
| T.stop; |
| /* the 'degraded' state exists from OML connection time, and we have to wait |
| * until all MO's are initialized */ |
| T.start(1.0); |
| T.timeout; |
| return; |
| } |
| f_sleep(0.1); |
| if (not T.running) { |
| setverdict(fail, "Timeout waiting for BTS" & int2str(bts_nr) & " oml-connection-state ", status); |
| mtc.stop; |
| } |
| } |
| } |
| |
| /* global altstep for global guard timer; also takes care of responding RESET witH RESET-ACK */ |
| altstep as_Tguard() runs on test_CT { |
| var BSSAP_N_UNITDATA_ind ud_ind; |
| [] T_guard.timeout { |
| setverdict(fail, "Timeout of T_guard"); |
| mtc.stop; |
| } |
| /* always respond with RESET ACK to RESET */ |
| [] BSSAP.receive(tr_BSSAP_UNITDATA_ind(?, ?, tr_BSSMAP_Reset)) -> value ud_ind { |
| BSSAP.send(ts_BSSAP_UNITDATA_req(ud_ind.callingAddress, ud_ind.calledAddress, |
| ts_BSSMAP_ResetAck)); |
| repeat; |
| } |
| } |
| |
| altstep no_bssmap_reset() runs on test_CT { |
| [] BSSAP.receive(tr_BSSAP_UNITDATA_ind(?, ?, tr_BSSMAP_Reset)) { |
| setverdict(fail, "unexpected BSSMAP Reset"); |
| mtc.stop; |
| } |
| } |
| |
| 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 mgcp_pars := { |
| callagent_ip := mp_bsc_ip, |
| callagent_udp_port := -1, |
| mgw_ip := mp_test_ip, |
| mgw_udp_port := 2427 |
| }; |
| |
| vc_MGCP := MGCP_Emulation_CT.create(id); |
| vc_MGCP.start(MGCP_Emulation.main(ops, mgcp_pars, id)); |
| } |
| |
| function f_init_vty(charstring id := "foo") runs on test_CT { |
| if (BSCVTY.checkstate("Mapped")) { |
| /* skip initialization if already executed once */ |
| return; |
| } |
| map(self:BSCVTY, system:BSCVTY); |
| f_vty_set_prompts(BSCVTY); |
| f_vty_transceive(BSCVTY, "enable"); |
| } |
| |
| /* global initialization function |
| * \param nr_bts Number of BTSs we should start/bring up |
| * \param handler_mode Start an RSL_Emulation_CT component (true) or not (false) */ |
| function f_init(integer nr_bts := NUM_BTS, boolean handler_mode := false) runs on test_CT { |
| var integer i; |
| |
| if (g_initialized) { |
| return; |
| } |
| g_initialized := true; |
| |
| /* Call a function of our 'parent component' BSSAP_Adapter_CT to start the |
| * MSC-side BSSAP emulation */ |
| if (handler_mode) { |
| f_bssap_init(g_bssap, mp_bssap_cfg, "VirtMSC", MSC_BssmapOps); |
| f_bssap_start(g_bssap); |
| } else { |
| f_bssap_init(g_bssap, mp_bssap_cfg, "VirtMSC", omit); |
| connect(self:BSSAP, g_bssap.vc_SCCP:SCCP_SP_PORT); |
| f_bssap_start(g_bssap); |
| f_legacy_bssap_reset(); |
| } |
| |
| f_ipa_ctrl_start(mp_bsc_ip, mp_bsc_ctrl_port); |
| |
| f_init_mgcp("VirtMSC"); |
| f_init_vty("VirtMSC"); |
| |
| for (i := 0; i < nr_bts; i := i+1) { |
| /* wait until osmo-bts-omldummy has respawned */ |
| f_wait_oml(i, "degraded", 5.0); |
| /* start RSL connection */ |
| f_ipa_rsl_start(bts[i].rsl, mp_bsc_ip, mp_bsc_rsl_port, i, handler_mode); |
| /* wait until BSC tells us "connected" */ |
| f_wait_oml(i, "connected", 5.0); |
| } |
| |
| T_guard.start; |
| activate(as_Tguard()); |
| } |
| |
| /* expect to receive a RSL message matching a specified template on a given BTS / stream */ |
| function f_exp_ipa_rx(integer bts_nr, template RSL_Message t_rx, float t_secs := 2.0, IpaStreamId sid := IPAC_PROTO_RSL_TRX0) |
| runs on test_CT return RSL_Message { |
| var ASP_RSL_Unitdata rx_rsl_ud; |
| timer T := t_secs; |
| |
| T.start; |
| alt { |
| [] IPA_RSL[bts_nr].receive(tr_ASP_RSL_UD(sid, t_rx)) -> value rx_rsl_ud { |
| T.stop; |
| } |
| [] IPA_RSL[bts_nr].receive { repeat; } |
| [] T.timeout { |
| setverdict(fail, "Timeout expecting ", t_rx); |
| mtc.stop; |
| } |
| } |
| return rx_rsl_ud.rsl; |
| } |
| |
| /* helper function to transmit RSL on a given BTS/stream */ |
| function f_ipa_tx(integer bts_nr, template RSL_Message t_tx, IpaStreamId sid := IPAC_PROTO_RSL_TRX0) |
| runs on test_CT { |
| IPA_RSL[bts_nr].send(ts_ASP_RSL_UD(sid, t_tx)); |
| } |
| |
| |
| /* verify we get a CHAN_ACT after CHAN RQD */ |
| testcase TC_chan_act_noreply() runs on test_CT { |
| var BSSAP_N_UNITDATA_ind ud_ind; |
| var RSL_Message rsl_unused; |
| |
| f_init(1); |
| |
| IPA_RSL[0].send(ts_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0,ts_RSL_CHAN_RQD('23'O, 23))); |
| rsl_unused := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_CHAN_ACTIV)); |
| setverdict(pass); |
| } |
| |
| /* verify if the "chreq:total" counter increments as expected */ |
| testcase TC_chan_act_counter() runs on test_CT { |
| var BSSAP_N_UNITDATA_ind ud_ind; |
| var integer chreq_total; |
| var RSL_Message rsl_unused; |
| |
| f_init(1); |
| |
| chreq_total := f_ctrl_get_ratectr_abs(IPA_CTRL, "bts", 0, "chreq:total"); |
| IPA_RSL[0].send(ts_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0,ts_RSL_CHAN_RQD('23'O, 23))); |
| rsl_unused := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_CHAN_ACTIV)); |
| f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bts", 0, "chreq:total", chreq_total+1); |
| |
| setverdict(pass); |
| } |
| |
| /* CHAN RQD -> CHAN ACT -> CHAN ACT ACK -> RF CHAN REL */ |
| testcase TC_chan_act_ack_noest() runs on test_CT { |
| var RSL_Message rx_rsl; |
| |
| f_init(1); |
| |
| /* Send CHAN RQD and wait for allocation; acknowledge it */ |
| var RslChannelNr chan_nr := f_chreq_act_ack(); |
| |
| /* expect BSC to disable the channel again if there's no RLL EST IND */ |
| rx_rsl := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_RF_CHAN_REL), T3101_MAX); |
| |
| setverdict(pass); |
| } |
| |
| /* Test behavior if MSC never answers to CR */ |
| testcase TC_chan_act_ack_est_ind_noreply() runs on test_CT { |
| var RslLinkId main_dcch := valueof(ts_RslLinkID_DCCH(0)); |
| var IpaStreamId sid := IPAC_PROTO_RSL_TRX0; |
| var RSL_Message rx_rsl; |
| var ASP_RSL_Unitdata rx_rsl_ud; |
| |
| f_init(1); |
| |
| /* Send CHAN RQD and wait for allocation; acknowledge it */ |
| var RslChannelNr chan_nr := f_chreq_act_ack(); |
| |
| var octetstring l3 := '00010203040506'O |
| f_ipa_tx(0, ts_RSL_EST_IND(chan_nr, valueof(ts_RslLinkID_DCCH(0)), l3)); |
| |
| BSSAP.receive(tr_BSSAP_CONNECT_ind(?, ?, tr_BSSMAP_ComplL3(l3))); |
| |
| /* expect BSC to disable the channel again if there's no response from MSC */ |
| /* MS waits 20s (T3210) at LU; 10s (T3230) at CM SERV REQ and 5s (T3220) AT detach */ |
| f_expect_chan_rel(0, chan_nr, expect_rll_rel_req := false); |
| setverdict(pass); |
| } |
| |
| /* Test behavior if MSC answers with CREF to CR */ |
| testcase TC_chan_act_ack_est_ind_refused() runs on test_CT { |
| var BSSAP_N_CONNECT_ind rx_c_ind; |
| var RSL_Message rx_rsl; |
| |
| f_init(1); |
| |
| /* Send CHAN RQD and wait for allocation; acknowledge it */ |
| var RslChannelNr chan_nr := f_chreq_act_ack(); |
| |
| var octetstring l3 := '00010203040506'O |
| f_ipa_tx(0, ts_RSL_EST_IND(chan_nr, valueof(ts_RslLinkID_DCCH(0)), l3)); |
| |
| BSSAP.receive(tr_BSSAP_CONNECT_ind(?, ?, tr_BSSMAP_ComplL3(l3))) -> value rx_c_ind; |
| BSSAP.send(ts_BSSAP_DISC_req(rx_c_ind.connectionId, 0)); |
| |
| /* expect BSC to disable the channel */ |
| f_expect_chan_rel(0, chan_nr, expect_rll_rel_req := false); |
| setverdict(pass); |
| } |
| |
| /* CHAN RQD -> CHAN ACT -> CHAN ACT NACK -> RF CHAN REL */ |
| testcase TC_chan_act_nack() runs on test_CT { |
| var RSL_Message rx_rsl; |
| var integer chact_nack; |
| |
| f_init(1); |
| |
| chact_nack := f_ctrl_get_ratectr_abs(IPA_CTRL, "bts", 0, "chan_act:nack"); |
| |
| f_ipa_tx(0, ts_RSL_CHAN_RQD('33'O, 33)); |
| rx_rsl := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_CHAN_ACTIV)); |
| var RslChannelNr chan_nr := rx_rsl.ies[0].body.chan_nr; |
| |
| f_ipa_tx(0, ts_RSL_CHAN_ACT_NACK(chan_nr, RSL_ERR_EQUIPMENT_FAIL)); |
| |
| /* wait for some time to hope the NACK arrives before the CTRL GET below */ |
| f_sleep(0.5); |
| |
| f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bts", 0, "chan_act:nack", chact_nack+1); |
| |
| setverdict(pass); |
| } |
| |
| /* Test for channel exhaustion due to RACH overload */ |
| testcase TC_chan_exhaustion() runs on test_CT { |
| var ASP_RSL_Unitdata rsl_ud; |
| var integer i; |
| var integer chreq_total, chreq_nochan; |
| |
| f_init(1); |
| |
| chreq_total := f_ctrl_get_ratectr_abs(IPA_CTRL, "bts", 0, "chreq:total"); |
| chreq_nochan := f_ctrl_get_ratectr_abs(IPA_CTRL, "bts", 0, "chreq:no_channel"); |
| |
| /* expect 5xTCH/F to succeed */ |
| for (i := 0; i < NUM_TCHF_PER_BTS + NUM_TCHH_PER_BTS + NUM_SDCCH_PER_BTS; i := i+1) { |
| var RslChannelNr chan_nr := f_chreq_act_ack('23'O, i); |
| } |
| |
| IPA_RSL[0].clear; |
| |
| f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bts", 0, "chreq:total", |
| chreq_total + NUM_TCHF_PER_BTS + NUM_TCHH_PER_BTS + NUM_SDCCH_PER_BTS); |
| |
| /* now expect additional channel activations to fail */ |
| f_ipa_tx(0, ts_RSL_CHAN_RQD('42'O, 42)); |
| |
| alt { |
| [] IPA_RSL[0].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, |
| tr_RSL_MsgTypeD(RSL_MT_CHAN_ACTIV))) { |
| setverdict(fail, "Received CHAN ACT ACK without resources?!?"); |
| } |
| [] IPA_RSL[0].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, tr_RSL_IMM_ASSIGN(?))) -> value rsl_ud { |
| var GsmRrMessage rr; |
| /* match on IMM ASS REJ */ |
| rr := dec_GsmRrMessage(rsl_ud.rsl.ies[1].body.full_imm_ass_info.payload); |
| if (rr.header.message_type == IMMEDIATE_ASSIGNMENT_REJECT) { |
| f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bts", 0, "chreq:total", |
| chreq_total + NUM_TCHF_PER_BTS + NUM_TCHH_PER_BTS + NUM_SDCCH_PER_BTS+1); |
| f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bts", 0, "chreq:no_channel", |
| chreq_nochan+1); |
| setverdict(pass); |
| } else { |
| repeat; |
| } |
| } |
| [] IPA_RSL[0].receive { repeat; } |
| } |
| } |
| |
| /*********************************************************************** |
| * Assignment Testing |
| ***********************************************************************/ |
| |
| /* Verify that the BSC refuses any BSSAP connection from the MSC (They are all BSC->MSC direction, |
| * except for the inter-BSC handover, MT side) */ |
| testcase TC_outbound_connect() runs on test_CT { |
| f_init(1); |
| |
| BSSAP.send(ts_BSSAP_CONNECT_req(g_bssap.sccp_addr_peer, g_bssap.sccp_addr_own, 2342, ts_BSSMAP_AssignmentReq)); |
| BSSAP.receive(tr_BSSAP_DISC_ind(2342, ?, ?)); |
| setverdict(pass); |
| } |
| |
| /* Test behavior if MSC answers with CREF to CR */ |
| testcase TC_assignment_cic_only() runs on test_CT { |
| var BSSAP_N_CONNECT_ind rx_c_ind; |
| var RSL_Message rx_rsl; |
| var DchanTuple dt; |
| |
| f_init(1); |
| |
| dt := f_est_dchan('23'O, 23, '00000000'O); |
| if (mp_bssap_cfg.transport == BSSAP_TRANSPORT_AoIP) { |
| /* send assignment without AoIP IEs */ |
| BSSAP.send(ts_BSSAP_DATA_req(dt.sccp_conn_id, ts_BSSMAP_AssignmentReq(ts_BSSMAP_IE_CIC(0, 1)))); |
| } else { |
| /* Send assignmetn without CIC in IPA case */ |
| var BSSMAP_IE_AoIP_TransportLayerAddress tla := |
| valueof(ts_BSSMAP_IE_AoIP_TLA4('01020304'O, 2342)); |
| BSSAP.send(ts_BSSAP_DATA_req(dt.sccp_conn_id, ts_BSSMAP_AssignmentReq(omit, tla))); |
| } |
| alt { |
| [] BSSAP.receive(tr_BSSAP_DATA_ind(dt.sccp_conn_id, tr_BSSMAP_AssignmentComplete)) { |
| setverdict(fail, "AoIP BSC cannot accept ASSIGNMENT without AoIP Transport IE"); |
| } |
| /* TODO: Actually expect GSM0808_CAUSE_REQ_A_IF_TYPE_NOT_SUPP */ |
| [] BSSAP.receive(tr_BSSAP_DATA_ind(dt.sccp_conn_id, tr_BSSMAP_AssignmentFail)) { |
| setverdict(pass); |
| } |
| [] BSSAP.receive { repeat; } |
| } |
| } |
| |
| /* generate an assignment request for either AoIP or SCCPlite */ |
| function f_gen_ass_req() return PDU_BSSAP { |
| var PDU_BSSAP ass_cmd; |
| if (mp_bssap_cfg.transport == BSSAP_TRANSPORT_AoIP) { |
| var BSSMAP_IE_AoIP_TransportLayerAddress tla := |
| valueof(ts_BSSMAP_IE_AoIP_TLA4('01020304'O, 2342)); |
| ass_cmd := valueof(ts_BSSMAP_AssignmentReq(omit, tla)); |
| } else { |
| var BSSMAP_IE_CircuitIdentityCode cic := valueof(ts_BSSMAP_IE_CIC(0,1)); |
| ass_cmd := valueof(ts_BSSMAP_AssignmentReq(cic, omit)); |
| } |
| return ass_cmd; |
| } |
| |
| function f_gen_handover_req() return PDU_BSSAP { |
| var PDU_BSSAP ho_req; |
| if (mp_bssap_cfg.transport == BSSAP_TRANSPORT_AoIP) { |
| var BSSMAP_IE_AoIP_TransportLayerAddress tla := |
| valueof(ts_BSSMAP_IE_AoIP_TLA4('01020304'O, 2342)); |
| ho_req := valueof(ts_BSSMAP_HandoverRequest(omit, tla)); |
| } else { |
| var BSSMAP_IE_CircuitIdentityCode cic := valueof(ts_BSSMAP_IE_CIC(0,1)); |
| ho_req := valueof(ts_BSSMAP_HandoverRequest(cic, omit)); |
| } |
| return ho_req; |
| } |
| |
| /* generate an assignment complete template for either AoIP or SCCPlite */ |
| function f_gen_exp_compl() return template PDU_BSSAP { |
| var template PDU_BSSAP exp_compl; |
| if (mp_bssap_cfg.transport == BSSAP_TRANSPORT_AoIP) { |
| exp_compl := tr_BSSMAP_AssignmentComplete(omit, ?); |
| } else { |
| /* CIC is optional "*" as the MSC allocated it */ |
| exp_compl := tr_BSSMAP_AssignmentComplete(*, omit); |
| } |
| return exp_compl; |
| } |
| |
| /* Run everything required up to sending a caller-specified assignment command and expect response */ |
| function f_assignment_exp(PDU_BSSAP ass_cmd, template PDU_BSSAP exp, charstring fail_text) |
| runs on test_CT { |
| var BSSAP_N_CONNECT_ind rx_c_ind; |
| var RSL_Message rx_rsl; |
| var DchanTuple dt; |
| |
| f_init(1); |
| |
| dt := f_est_dchan('23'O, 23, '00000000'O); |
| /* send assignment without AoIP IEs */ |
| BSSAP.send(ts_BSSAP_DATA_req(dt.sccp_conn_id, ass_cmd)); |
| alt { |
| [] BSSAP.receive(tr_BSSAP_DATA_ind(dt.sccp_conn_id, tr_BSSMAP_AssignmentComplete)) { |
| if (ischosen(exp.pdu.bssmap.assignmentComplete)) { |
| setverdict(pass); |
| } else { |
| setverdict(fail, fail_text); |
| } |
| } |
| [] BSSAP.receive(tr_BSSAP_DATA_ind(dt.sccp_conn_id, tr_BSSMAP_AssignmentFail)) { |
| if (ischosen(exp.pdu.bssmap.assignmentFailure)) { |
| setverdict(pass); |
| } else { |
| setverdict(fail, fail_text); |
| } |
| } |
| [] BSSAP.receive { repeat; } |
| } |
| } |
| testcase TC_assignment_csd() runs on test_CT { |
| var template PDU_BSSAP exp_fail := tr_BSSMAP_AssignmentFail; |
| var PDU_BSSAP ass_cmd := f_gen_ass_req(); |
| ass_cmd.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelTypeCSD); |
| //exp_fail.pdu.bssmap.assignmentFailure.cause.causeValue := int2bit(enum2int(GSM0808_CAUSE_REQ_CODEC_TYPE_OR_CONFIG_UNAVAIL), 7); |
| f_assignment_exp(ass_cmd, exp_fail, "BSC accepted Assignment for CSD"); |
| } |
| |
| testcase TC_assignment_ctm() runs on test_CT { |
| var template PDU_BSSAP exp_fail := tr_BSSMAP_AssignmentFail; |
| var PDU_BSSAP ass_cmd := f_gen_ass_req(); |
| ass_cmd.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelTypeCTM); |
| //exp_fail.pdu.bssmap.assignmentFailure.cause.causeValue := int2bit(enum2int(GSM0808_CAUSE_REQ_CODEC_TYPE_OR_CONFIG_UNAVAIL), 7); |
| f_assignment_exp(ass_cmd, exp_fail, "BSC accepted Assignment for Speech+CTM"); |
| } |
| |
| type record DchanTuple { |
| integer sccp_conn_id, |
| RslChannelNr rsl_chan_nr |
| } |
| |
| /* Send CHAN RQD and wait for allocation; acknowledge it */ |
| private function f_chreq_act_ack(OCT1 ra := '23'O, GsmFrameNumber fn := 23) |
| runs on test_CT return RslChannelNr { |
| var RSL_Message rx_rsl; |
| f_ipa_tx(0, ts_RSL_CHAN_RQD(ra, fn)); |
| rx_rsl := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_CHAN_ACTIV)); |
| var RslChannelNr chan_nr := rx_rsl.ies[0].body.chan_nr; |
| f_ipa_tx(0, ts_RSL_CHAN_ACT_ACK(chan_nr, fn+10)); |
| rx_rsl := f_exp_ipa_rx(0, tr_RSL_IMM_ASSIGN(0)); |
| return chan_nr; |
| } |
| |
| /* helper function to establish a dedicated channel via BTS and MSC */ |
| function f_est_dchan(OCT1 ra, GsmFrameNumber fn, octetstring l3) |
| runs on test_CT return DchanTuple { |
| var BSSAP_N_CONNECT_ind rx_c_ind; |
| var DchanTuple dt; |
| |
| /* Send CHAN RQD and wait for allocation; acknowledge it */ |
| dt.rsl_chan_nr := f_chreq_act_ack(ra, fn); |
| |
| f_ipa_tx(0, ts_RSL_EST_IND(dt.rsl_chan_nr, valueof(ts_RslLinkID_DCCH(0)), l3)); |
| |
| BSSAP.receive(tr_BSSAP_CONNECT_ind(?, ?, tr_BSSMAP_ComplL3(l3))) -> value rx_c_ind; |
| dt.sccp_conn_id := rx_c_ind.connectionId; |
| BSSAP.send(ts_BSSAP_CONNECT_res(dt.sccp_conn_id)); |
| |
| return dt; |
| } |
| |
| /* expect RF CAN REL from BTS, acknowledge it and clear the MSC side */ |
| private function f_exp_chan_rel_and_clear(DchanTuple dt, integer bts_nr := 0) runs on test_CT { |
| var RSL_Message rx_rsl; |
| /* expect BSC to disable the channel */ |
| rx_rsl := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_RF_CHAN_REL), T3101_MAX); |
| /* respond with CHAN REL ACK */ |
| f_ipa_tx(0, ts_RSL_RF_CHAN_REL_ACK(dt.rsl_chan_nr)); |
| |
| /* expect Clear Complete from BSC */ |
| BSSAP.receive(tr_BSSAP_DATA_ind(dt.sccp_conn_id, tr_BSSMAP_ClearComplete)); |
| |
| /* MSC disconnects as instructed. */ |
| BSSAP.send(ts_BSSAP_DISC_req(dt.sccp_conn_id, 0)); |
| } |
| |
| /* Test behavior of channel release after unilateral RLL REL IND (DISC from MS) */ |
| testcase TC_chan_rel_rll_rel_ind() runs on test_CT { |
| var BSSAP_N_DATA_ind rx_di; |
| var DchanTuple dt; |
| |
| f_init(1); |
| |
| dt := f_est_dchan('23'O, 23, '00010203040506'O); |
| |
| /* simulate RLL REL IND */ |
| f_ipa_tx(0, ts_RSL_REL_IND(dt.rsl_chan_nr, valueof(ts_RslLinkID_DCCH(0)))); |
| |
| /* expect Clear Request on MSC side */ |
| BSSAP.receive(tr_BSSAP_DATA_ind(dt.sccp_conn_id, tr_BSSMAP_ClearRequest)) -> value rx_di; |
| |
| /* Instruct BSC to clear channel */ |
| var BssmapCause cause := bit2int(rx_di.userData.pdu.bssmap.clearRequest.cause.causeValue); |
| BSSAP.send(ts_BSSAP_DATA_req(dt.sccp_conn_id, ts_BSSMAP_ClearCommand(cause))); |
| |
| /* expect BSC to disable the channel */ |
| f_exp_chan_rel_and_clear(dt, 0); |
| |
| /* wait for SCCP emulation to do its job */ |
| f_sleep(1.0); |
| |
| setverdict(pass); |
| } |
| |
| /* Test behavior of channel release after CONN FAIL IND from BTS */ |
| testcase TC_chan_rel_conn_fail() runs on test_CT { |
| var BSSAP_N_DATA_ind rx_di; |
| var DchanTuple dt; |
| |
| f_init(1); |
| |
| dt := f_est_dchan('23'O, 23, '00010203040506'O); |
| |
| /* simulate CONN FAIL IND */ |
| f_ipa_tx(0, ts_RSL_CONN_FAIL_IND(dt.rsl_chan_nr, RSL_ERR_RADIO_LINK_FAIL)); |
| /* TODO: different cause values? */ |
| |
| /* expect Clear Request from BSC */ |
| BSSAP.receive(tr_BSSAP_DATA_ind(dt.sccp_conn_id, tr_BSSMAP_ClearRequest)) -> value rx_di; |
| |
| /* Instruct BSC to clear channel */ |
| var BssmapCause cause := bit2int(rx_di.userData.pdu.bssmap.clearRequest.cause.causeValue); |
| BSSAP.send(ts_BSSAP_DATA_req(dt.sccp_conn_id, ts_BSSMAP_ClearCommand(cause))); |
| |
| /* expect BSC to disable the channel */ |
| f_exp_chan_rel_and_clear(dt, 0); |
| |
| /* wait for SCCP emulation to do its job */ |
| f_sleep(1.0); |
| |
| setverdict(pass); |
| } |
| |
| /* Test behavior of early CONN FAIL IND from BTS (before EST IND!) */ |
| /* See also https://www.osmocom.org/issues/3182 */ |
| testcase TC_early_conn_fail() runs on test_CT { |
| var RSL_Message rx_rsl; |
| var DchanTuple dt; |
| |
| f_init(1); |
| |
| /* BTS->BSC: Send CHAN RQD and wait for allocation; acknowledge it */ |
| dt.rsl_chan_nr := f_chreq_act_ack(f_rnd_octstring(1), 23); |
| |
| /* BTS->BSC: simulate CONN FAIL IND */ |
| f_ipa_tx(0, ts_RSL_CONN_FAIL_IND(dt.rsl_chan_nr, RSL_ERR_RADIO_LINK_FAIL)); |
| |
| /* BTS->BSC: Expect RF channel release from BSC on Abis */ |
| rx_rsl := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_RF_CHAN_REL), 10.0); |
| |
| /* BTS<-BSC: respond with CHAN REL ACK */ |
| f_ipa_tx(0, ts_RSL_RF_CHAN_REL_ACK(dt.rsl_chan_nr)); |
| |
| setverdict(pass); |
| } |
| |
| /* Test behavior of late CONN FAIL IND from BTS (ater REL IND!) */ |
| /* See also https://www.osmocom.org/issues/3182 */ |
| testcase TC_late_conn_fail() runs on test_CT { |
| var RSL_Message rx_rsl; |
| var DchanTuple dt; |
| |
| f_init(1); |
| |
| dt := f_est_dchan('23'O, 23, '00010203040506'O); |
| |
| /* BSC<-MSC: Instruct BSC to clear connection */ |
| BSSAP.send(ts_BSSAP_DATA_req(dt.sccp_conn_id, ts_BSSMAP_ClearCommand(0))); |
| |
| /* BTS->BSC: expect BSC to deactivate SACCH */ |
| rx_rsl := f_exp_ipa_rx(0, tr_RSL_DEACT_SACCH(dt.rsl_chan_nr)); |
| |
| /* BTS->BSC: simulate a late CONN FAIL IND from BTS */ |
| f_ipa_tx(0, ts_RSL_CONN_FAIL_IND(dt.rsl_chan_nr, RSL_ERR_RADIO_LINK_FAIL)); |
| |
| /* BTS<-BSC: Expect RF channel release from BSC on Abis */ |
| rx_rsl := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_RF_CHAN_REL), 10.0); |
| /* BTS->BSC: respond with CHAN REL ACK */ |
| f_ipa_tx(0, ts_RSL_RF_CHAN_REL_ACK(dt.rsl_chan_nr)); |
| |
| /* BSC->MSC: expect Clear Complete from BSC */ |
| BSSAP.receive(tr_BSSAP_DATA_ind(dt.sccp_conn_id, tr_BSSMAP_ClearComplete)); |
| |
| /* BSC<-MSC: MSC disconnects as requested. */ |
| BSSAP.send(ts_BSSAP_DISC_req(dt.sccp_conn_id, 0)); |
| |
| setverdict(pass); |
| } |
| |
| function f_expect_chan_rel(integer bts_nr, RslChannelNr rsl_chan_nr, |
| boolean expect_deact_sacch := true, |
| boolean expect_rr_chan_rel := true, |
| boolean expect_rll_rel_req := true, |
| boolean handle_rll_rel := true |
| ) runs on test_CT { |
| |
| var RslLinkId main_dcch := valueof(ts_RslLinkID_DCCH(0)); |
| var octetstring l3_rr_chan_rel := '060D00'O; |
| var boolean got_deact_sacch := false; |
| var boolean got_rr_chan_rel := false; |
| var boolean got_rll_rel_req := false; |
| log("f_expect_chan_rel() expecting: expect_deact_sacch=", expect_deact_sacch, " expect_rr_chan_rel=", expect_rr_chan_rel, |
| " expect_rll_rel_req=", expect_rll_rel_req); |
| alt { |
| [] IPA_RSL[bts_nr].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, |
| tr_RSL_DEACT_SACCH(rsl_chan_nr))) { |
| got_deact_sacch := true; |
| repeat; |
| } |
| [] IPA_RSL[bts_nr].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, tr_RSL_DATA_REQ(rsl_chan_nr, ?, l3_rr_chan_rel))) { |
| got_rr_chan_rel := true; |
| repeat; |
| } |
| [] IPA_RSL[bts_nr].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, |
| tr_RSL_REL_REQ(rsl_chan_nr, ?))) { |
| got_rll_rel_req := true; |
| /* FIXME: Why are we getting this for LinkID SACCH? */ |
| if (handle_rll_rel) { |
| f_ipa_tx(0, ts_RSL_REL_CONF(rsl_chan_nr, main_dcch)); |
| } |
| repeat; |
| } |
| [] IPA_RSL[bts_nr].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, |
| tr_RSL_MsgTypeD(RSL_MT_RF_CHAN_REL))) { |
| /* respond with CHAN REL ACK */ |
| f_ipa_tx(0, ts_RSL_RF_CHAN_REL_ACK(rsl_chan_nr)); |
| } |
| /* ignore any user data */ |
| [] IPA_RSL[bts_nr].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, tr_RSL_MsgTypeR(?))) { |
| repeat; |
| } |
| } |
| |
| log("f_expect_chan_rel() summary: got_deact_sacch=", got_deact_sacch, " got_rr_chan_rel=", got_rr_chan_rel, |
| " got_rll_rel_req=", got_rll_rel_req); |
| |
| if (expect_deact_sacch != got_deact_sacch) { |
| setverdict(fail, "f_expect_chan_rel(): expect_deact_sacch=", expect_deact_sacch, " got_deact_sacch=", got_deact_sacch); |
| } |
| if (expect_rr_chan_rel != got_rr_chan_rel) { |
| setverdict(fail, "f_expect_chan_rel(): expect_rr_chan_rel=", expect_rr_chan_rel, " got_rr_chan_rel=", got_rr_chan_rel); |
| } |
| if (expect_rll_rel_req != got_rll_rel_req) { |
| setverdict(fail, "f_expect_chan_rel(): expect_rll_rel_req=", expect_rll_rel_req, " got_rll_rel_req=", got_rll_rel_req); |
| } |
| } |
| |
| /* Test behavior of channel release after hard Clear Command from MSC */ |
| testcase TC_chan_rel_hard_clear() runs on test_CT { |
| var BSSAP_N_DATA_ind rx_di; |
| var DchanTuple dt; |
| |
| f_init(1); |
| |
| dt := f_est_dchan('23'O, 23, '00010203040506'O); |
| |
| /* Instruct BSC to clear channel */ |
| var BssmapCause cause := 0; |
| BSSAP.send(ts_BSSAP_DATA_req(dt.sccp_conn_id, ts_BSSMAP_ClearCommand(cause))); |
| |
| /* expect Clear Complete from BSC on A */ |
| BSSAP.receive(tr_BSSAP_DATA_ind(dt.sccp_conn_id, tr_BSSMAP_ClearComplete)) { |
| /* release the SCCP connection */ |
| BSSAP.send(ts_BSSAP_DISC_req(dt.sccp_conn_id, 0)); |
| } |
| |
| f_expect_chan_rel(0, dt.rsl_chan_nr, expect_rll_rel_req := false); |
| setverdict(pass); |
| } |
| |
| /* Test behavior of channel release after hard RLSD from MSC */ |
| testcase TC_chan_rel_hard_rlsd() runs on test_CT { |
| var DchanTuple dt; |
| |
| f_init(1); |
| |
| dt := f_est_dchan('23'O, 23, '00010203040506'O); |
| |
| /* release the SCCP connection */ |
| BSSAP.send(ts_BSSAP_DISC_req(dt.sccp_conn_id, 0)); |
| |
| f_expect_chan_rel(0, dt.rsl_chan_nr, expect_rll_rel_req := false); |
| setverdict(pass); |
| } |
| |
| /* Test behavior of channel release after hard RLSD from MSC and MS is not responding to RLL REL REQ */ |
| testcase TC_chan_rel_hard_rlsd_ms_dead() runs on test_CT { |
| var DchanTuple dt; |
| |
| f_init(1); |
| |
| dt := f_est_dchan('23'O, 23, '00010203040506'O); |
| |
| /* release the SCCP connection */ |
| BSSAP.send(ts_BSSAP_DISC_req(dt.sccp_conn_id, 0)); |
| |
| f_expect_chan_rel(0, dt.rsl_chan_nr, expect_rll_rel_req := false); |
| setverdict(pass); |
| } |
| |
| /* Test behavior of channel release after BSSMAP RESET from MSC */ |
| testcase TC_chan_rel_a_reset() runs on test_CT { |
| var DchanTuple dt; |
| |
| f_init(1); |
| |
| dt := f_est_dchan('23'O, 23, '00010203040506'O); |
| |
| /* Clear the queue, it might still contain stuff like IMMEDIATE ASSIGN */ |
| IPA_RSL[0].clear; |
| |
| /* perform BSSAP RESET, expect RESET ACK and DISC.ind on connection */ |
| BSSAP.send(ts_BSSAP_UNITDATA_req(g_bssap.sccp_addr_peer, g_bssap.sccp_addr_own, ts_BSSMAP_Reset(0))); |
| interleave { |
| [] BSSAP.receive(tr_BSSAP_UNITDATA_ind(g_bssap.sccp_addr_own, g_bssap.sccp_addr_peer, tr_BSSMAP_ResetAck)) { } |
| [] BSSAP.receive(tr_BSSAP_DISC_ind(dt.sccp_conn_id, ?, ?)) { } |
| } |
| |
| f_expect_chan_rel(0, dt.rsl_chan_nr, expect_rll_rel_req := false); |
| setverdict(pass); |
| } |
| |
| /* Test behavior if RSL EST IND for non-active channel */ |
| testcase TC_rll_est_ind_inact_lchan() runs on test_CT { |
| timer T := 2.0; |
| |
| f_init(1); |
| |
| var octetstring l3 := '00010203040506'O; |
| var RslChannelNr chan_nr := valueof(t_RslChanNr_Bm(6)); |
| f_ipa_tx(0, ts_RSL_EST_IND(chan_nr, valueof(ts_RslLinkID_DCCH(0)), l3)); |
| |
| T.start; |
| alt { |
| [] BSSAP.receive(tr_BSSAP_CONNECT_ind(?, ?, tr_BSSMAP_ComplL3(l3))) { |
| setverdict(fail, "MSC received COMPL L3 for non-active lchan"); |
| } |
| [] BSSAP.receive {} |
| [] IPA_RSL[0].receive {} |
| [] T.timeout {} |
| } |
| |
| setverdict(pass); |
| } |
| |
| /* Test behavior if RSL EST IND for invalid SAPI */ |
| testcase TC_rll_est_ind_inval_sapi1() runs on test_CT { |
| var RslChannelNr chan_nr; |
| |
| f_init(1); |
| |
| chan_nr := f_chreq_act_ack() |
| |
| var octetstring l3 := '00010203040506'O; |
| f_ipa_tx(0, ts_RSL_EST_IND(chan_nr, valueof(ts_RslLinkID_DCCH(1)), l3)); |
| |
| timer T := 2.0; |
| T.start; |
| alt { |
| [] BSSAP.receive(tr_BSSAP_CONNECT_ind(?, ?, tr_BSSMAP_ComplL3(l3))) { |
| setverdict(fail, "MSC received COMPL L3 for invalid SAPI 1"); |
| } |
| [] BSSAP.receive { repeat; } |
| [] IPA_RSL[0].receive { repeat; } |
| [] T.timeout {} |
| } |
| |
| setverdict(pass); |
| } |
| |
| /* Test behavior if RSL EST IND for invalid SAPI */ |
| testcase TC_rll_est_ind_inval_sapi3() runs on test_CT { |
| timer T := 2.0; |
| |
| f_init(1); |
| |
| var RslChannelNr chan_nr := f_chreq_act_ack(); |
| |
| var octetstring l3 := '00010203040506'O; |
| f_ipa_tx(0, ts_RSL_EST_IND(chan_nr, valueof(ts_RslLinkID_DCCH(3)), l3)); |
| |
| T.start; |
| alt { |
| [] BSSAP.receive(tr_BSSAP_CONNECT_ind(?, ?, tr_BSSMAP_ComplL3(l3))) { |
| setverdict(fail, "MSC received COMPL L3 for invalid SAPI 3"); |
| } |
| [] BSSAP.receive { repeat; } |
| [] IPA_RSL[0].receive { repeat; } |
| [] T.timeout {} |
| } |
| |
| setverdict(pass); |
| } |
| |
| /* Test behavior if RSL EST IND for invalid SACCH */ |
| testcase TC_rll_est_ind_inval_sacch() runs on test_CT { |
| timer T := 2.0; |
| |
| f_init(1); |
| |
| var RslChannelNr chan_nr := f_chreq_act_ack(); |
| |
| var octetstring l3 := '00010203040506'O; |
| f_ipa_tx(0, ts_RSL_EST_IND(chan_nr, valueof(ts_RslLinkID_SACCH(0)), l3)); |
| |
| T.start; |
| alt { |
| [] BSSAP.receive(tr_BSSAP_CONNECT_ind(?, ?, tr_BSSMAP_ComplL3(l3))) { |
| setverdict(fail, "MSC received COMPL L3 for invalid Link SACCH"); |
| } |
| [] BSSAP.receive { repeat; } |
| [] IPA_RSL[0].receive { repeat; } |
| [] T.timeout {} |
| } |
| |
| setverdict(pass); |
| } |
| |
| |
| |
| |
| testcase TC_ctrl_msc_connection_status() runs on test_CT { |
| var charstring ctrl_resp; |
| |
| f_init(1); |
| |
| /* See https://osmocom.org/issues/2729 */ |
| f_ctrl_get_exp(IPA_CTRL, "msc_connection_status", "connected"); |
| setverdict(pass); |
| } |
| |
| testcase TC_ctrl_msc0_connection_status() runs on test_CT { |
| var charstring ctrl_resp; |
| |
| f_init(1); |
| |
| f_ctrl_get_exp(IPA_CTRL, "msc.0.connection_status", "connected"); |
| setverdict(pass); |
| } |
| |
| testcase TC_ctrl() runs on test_CT { |
| var charstring ctrl_resp; |
| |
| f_init(1); |
| |
| /* all below values must match the osmo-bsc.cfg config file used */ |
| |
| f_ctrl_get_exp(IPA_CTRL, "mcc", "001"); |
| f_ctrl_get_exp(IPA_CTRL, "mnc", "01"); |
| f_ctrl_get_exp(IPA_CTRL, "number-of-bts", "3"); |
| |
| var integer bts_nr := 0; |
| f_ctrl_get_exp_bts(IPA_CTRL, bts_nr, "location-area-code", "1"); |
| f_ctrl_get_exp_bts(IPA_CTRL, bts_nr, "cell-identity", "0"); |
| f_ctrl_get_exp_bts(IPA_CTRL, bts_nr, "oml-connection-state", "connected"); |
| f_ctrl_get_exp_bts(IPA_CTRL, bts_nr, "gprs-mode", "gprs"); |
| f_ctrl_get_exp_bts(IPA_CTRL, bts_nr, "rf_state", "operational,unlocked,on"); |
| f_ctrl_get_exp_trx(IPA_CTRL, bts_nr, 0, "arfcn", "871"); |
| f_ctrl_get_exp_trx(IPA_CTRL, bts_nr, 0, "max-power-reduction", "20"); |
| |
| var integer uptime := str2int(f_ctrl_get_bts(IPA_CTRL, bts_nr, "oml-uptime")); |
| f_sleep(2.0); |
| if (str2int(f_ctrl_get_bts(IPA_CTRL, bts_nr, "oml-uptime")) < uptime+1) { |
| setverdict(fail, "oml-uptime not incrementing as expected"); |
| } |
| /* TODO: Disconnect RSL, imply that OML is disconnected and check for uptime zero? */ |
| |
| f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bsc", 0, "paging:attempted", 0); |
| |
| setverdict(pass); |
| } |
| |
| function f_bssap_tx_ud(template PDU_BSSAP bssap) runs on test_CT { |
| BSSAP.send(ts_BSSAP_UNITDATA_req(g_bssap.sccp_addr_peer, g_bssap.sccp_addr_own, bssap)); |
| } |
| |
| |
| /*********************************************************************** |
| * Paging Testing |
| ***********************************************************************/ |
| |
| type record Cell_Identity { |
| GsmMcc mcc, |
| GsmMnc mnc, |
| GsmLac lac, |
| GsmCellId ci |
| }; |
| private const Cell_Identity cid := { '001'H, '01'H, 1, 0 }; |
| private const Cell_Identity unknown_cid := { '678'H, 'f90'H, 1, 0 }; |
| |
| type set of integer BtsIdList; |
| |
| private function f_bts_in_list(integer bts_id, BtsIdList bts_ids) return boolean { |
| for (var integer j := 0; j < sizeof(bts_ids); j := j + 1) { |
| if (bts_id == bts_ids[j]) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /* core paging test helper function; used by most paging test cases */ |
| private function f_pageing_helper(hexstring imsi, |
| template BSSMAP_FIELD_CellIdentificationList cid_list, |
| BtsIdList bts_ids := { 0 }, |
| template RSL_ChanNeeded rsl_chneed := omit, |
| template OCT4 tmsi := omit) runs on test_CT |
| { |
| var template BSSMAP_IE_ChannelNeeded bssmap_chneed; |
| var MobileIdentity mi; |
| var template octetstring id_enc; /* FIXME */ |
| var RSL_Message rx_rsl; |
| var integer paging_group := hex2int(imsi[lengthof(imsi)-1]); |
| var integer i; |
| |
| f_init(); |
| |
| /* Clear the queue, it might still contain stuff like BCCH FILLING */ |
| for (i := 0; i < NUM_BTS; i := i + 1) { |
| IPA_RSL[i].clear; |
| } |
| |
| if (isvalue(rsl_chneed)) { |
| /* The values of 08.08 3.2.2.36 and 08.58 9.3.40 are luckily identical */ |
| bssmap_chneed := ts_BSSMAP_IE_ChanNeeded(int2bit(enum2int(valueof(rsl_chneed)),2)); |
| } else { |
| bssmap_chneed := omit; |
| } |
| |
| f_bssap_tx_ud(ts_BSSMAP_Paging(imsi, cid_list, tmsi, bssmap_chneed)); |
| |
| /* FIXME: Disabled due to bugs in both GSM_RR_Types and MobileL3_CommonIE_Types IMSI encoder |
| if (isvalue(tmsi)) { |
| mi := valueof(t_Osmo_MI_TMSI(oct2int(valueof(tmsi)))); |
| } else { |
| mi := valueof(ts_Osmo_MI_IMSI(imsi)); |
| } |
| id_enc := enc_MobileIdentity(mi); |
| */ |
| id_enc := ?; |
| for (i := 0; i < sizeof(bts_ids); i := i + 1) { |
| rx_rsl := f_exp_ipa_rx(bts_ids[i], tr_RSL_PAGING_CMD(id_enc)); |
| /* check channel type, paging group */ |
| if (rx_rsl.ies[1].body.paging_group != paging_group) { |
| setverdict(fail, "Paging for wrong paging group"); |
| } |
| if (ispresent(rsl_chneed) and |
| rx_rsl.ies[3].body.chan_needed.chan_needed != valueof(rsl_chneed)) { |
| setverdict(fail, "RSL Channel Needed != BSSMAP Channel Needed"); |
| } |
| } |
| f_sleep(2.0); |
| /* do a quick check on all not-included BTSs if they received paging */ |
| for (i := 0; i < NUM_BTS; i := i + 1) { |
| timer T := 0.1; |
| if (f_bts_in_list(i, bts_ids)) { |
| continue; |
| } |
| T.start; |
| alt { |
| [] IPA_RSL[i].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, tr_RSL_PAGING_CMD(id_enc))) { |
| setverdict(fail, "Paging on BTS ", i, " which is not part of ", bts_ids); |
| } |
| [] IPA_RSL[i].receive { repeat; } |
| [] T.timeout { } |
| } |
| } |
| |
| setverdict(pass); |
| } |
| |
| const BtsIdList c_BtsId_all := { 0, 1, 2 }; |
| const BtsIdList c_BtsId_none := { }; |
| const BtsIdList c_BtsId_LAC1 := { 0, 1 }; |
| const BtsIdList c_BtsId_LAC2 := { 2 }; |
| |
| /* PAGING by IMSI + TMSI */ |
| testcase TC_paging_imsi_nochan() runs on test_CT { |
| var BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := valueof(ts_BSSMAP_CIL_noCell); |
| f_pageing_helper('001010100000001'H, cid_list, c_BtsId_all, omit, omit); |
| f_shutdown_helper(); |
| } |
| |
| /* PAGING by IMSI + TMSI */ |
| testcase TC_paging_tmsi_nochan() runs on test_CT { |
| var BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := valueof(ts_BSSMAP_CIL_noCell); |
| f_pageing_helper('001010100000001'H, cid_list, c_BtsId_all, omit, 'A1B2C301'O); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging with different "channel needed' values */ |
| testcase TC_paging_tmsi_any() runs on test_CT { |
| var BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := valueof(ts_BSSMAP_CIL_noCell); |
| f_pageing_helper('001010100000002'H, cid_list, c_BtsId_all, RSL_CHANNEED_ANY, 'A1B2C302'O); |
| f_shutdown_helper(); |
| } |
| testcase TC_paging_tmsi_sdcch() runs on test_CT { |
| var BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := valueof(ts_BSSMAP_CIL_noCell); |
| f_pageing_helper('001010100000003'H, cid_list, c_BtsId_all, RSL_CHANNEED_SDCCH, 'A1B2C303'O); |
| f_shutdown_helper(); |
| } |
| testcase TC_paging_tmsi_tch_f() runs on test_CT { |
| var BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := valueof(ts_BSSMAP_CIL_noCell); |
| f_pageing_helper('001010000000004'H, cid_list, c_BtsId_all, RSL_CHANNEED_TCH_F, 'A1B2C304'O); |
| f_shutdown_helper(); |
| } |
| testcase TC_paging_tmsi_tch_hf() runs on test_CT { |
| var BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := valueof(ts_BSSMAP_CIL_noCell); |
| f_pageing_helper('001010000000005'H, cid_list, c_BtsId_all, RSL_CHANNEED_TCH_ForH, 'A1B2C305'O); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging by CGI */ |
| testcase TC_paging_imsi_nochan_cgi() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_CGI := { ts_BSSMAP_CI_CGI(cid.mcc, cid.mnc, cid.lac, cid.ci) } }; |
| f_pageing_helper('001010000000006'H, cid_list, { 0 }); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging by LAC+CI */ |
| testcase TC_paging_imsi_nochan_lac_ci() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_LAC_CI := { ts_BSSMAP_CI_LAC_CI(cid.lac, cid.ci) } }; |
| f_pageing_helper('001010000000007'H, cid_list, { 0 }); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging by CI */ |
| testcase TC_paging_imsi_nochan_ci() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_CI := { ts_BSSMAP_CI_CI(cid.ci) } }; |
| f_pageing_helper('001010000000008'H, cid_list, { 0 }); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging by LAI */ |
| testcase TC_paging_imsi_nochan_lai() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_LAI := { ts_BSSMAP_CI_LAI(cid.mcc, cid.mnc, cid.lac) } }; |
| f_pageing_helper('001010000000009'H, cid_list, c_BtsId_LAC1); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging by LAC */ |
| testcase TC_paging_imsi_nochan_lac() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_LAC := { ts_BSSMAP_CI_LAC(cid.lac) } }; |
| f_pageing_helper('001010000000010'H, cid_list, c_BtsId_LAC1); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging by "all in BSS" */ |
| testcase TC_paging_imsi_nochan_all() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_allInBSS := ''O }; |
| f_pageing_helper('001010000000011'H, cid_list, c_BtsId_all); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging by PLMN+LAC+RNC; We do not implement this; Verify nothing is paged */ |
| testcase TC_paging_imsi_nochan_plmn_lac_rnc() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_PLMN_LAC_RNC := { ts_BSSMAP_CI_PLMN_LAC_RNC(cid.mcc, cid.mnc, cid.lac, 12) } }; |
| f_pageing_helper('001010000000012'H, cid_list, c_BtsId_none); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging by RNC; We do not implement this; Verify nothing is paged */ |
| testcase TC_paging_imsi_nochan_rnc() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_RNC := { int2oct(13, 2) } }; |
| f_pageing_helper('001010000000013'H, cid_list, c_BtsId_none); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging by LAC+RNC; We do not implement; Verify nothing is paged */ |
| testcase TC_paging_imsi_nochan_lac_rnc() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_LAC_RNC := { ts_BSSMAP_CI_LAC_RNC(cid.lac, 14) } }; |
| f_pageing_helper('001010000000014'H, cid_list, c_BtsId_none); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging on multiple cells (multiple entries in list): Verify all of them page */ |
| testcase TC_paging_imsi_nochan_lacs() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_LAC := { ts_BSSMAP_CI_LAC(1), ts_BSSMAP_CI_LAC(2) } }; |
| f_pageing_helper('001010000000015'H, cid_list, c_BtsId_all); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging on empty list: Verify none of them page */ |
| testcase TC_paging_imsi_nochan_lacs_empty() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_LAC := { } }; |
| f_pageing_helper('001010000000016'H, cid_list, c_BtsId_none); |
| f_shutdown_helper(); |
| } |
| |
| /* Paging by CGI with unknown MCC/MNC: Verify nothing is paged. */ |
| testcase TC_paging_imsi_nochan_cgi_unknown_cid() runs on test_CT { |
| var template BSSMAP_FIELD_CellIdentificationList cid_list; |
| cid_list := { cIl_CGI := { ts_BSSMAP_CI_CGI(unknown_cid.mcc, unknown_cid.mnc, unknown_cid.lac, unknown_cid.ci) } }; |
| f_pageing_helper('001010000000006'H, cid_list, c_BtsId_none); |
| f_shutdown_helper(); |
| } |
| |
| /* Verify paging retransmission interval + count */ |
| /* Verify paging stops after channel establishment */ |
| /* Test behavior under paging overload */ |
| |
| /* Verify PCH load */ |
| testcase TC_paging_imsi_load() runs on test_CT { |
| var BSSMAP_FIELD_CellIdentificationList cid_list; |
| timer T := 4.0; |
| timer T_retrans := 1.0; |
| cid_list := valueof(ts_BSSMAP_CIL_noCell); |
| f_pageing_helper('001010123456789'H, cid_list, c_BtsId_all); |
| |
| /* tell BSC there is no paging space anymore */ |
| f_ipa_tx(0, ts_RSL_PAGING_LOAD_IND(0)); |
| f_sleep(0.2); |
| IPA_RSL[0].clear; |
| |
| /* Wait for 4 seconds if any more PAGING CMD are received on RSL. Normally, |
| * there would be 8 retransmissions during 4 seconds */ |
| T.start; |
| T_retrans.start; |
| alt { |
| [] IPA_RSL[0].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, tr_RSL_PAGING_CMD(?))) { |
| setverdict(fail, "Received PAGING after LOAD_IND(0)"); |
| mtc.stop; |
| } |
| [] T_retrans.timeout { |
| /* re-trnsmit the zero-space LOAD IND to avoid BSC 'auto credit' */ |
| f_ipa_tx(0, ts_RSL_PAGING_LOAD_IND(0)); |
| T_retrans.start; |
| repeat; |
| } |
| [] T.timeout { |
| setverdict(pass); |
| } |
| } |
| |
| f_shutdown_helper(); |
| } |
| |
| /* Verify Paging Counter */ |
| testcase TC_paging_counter() runs on test_CT { |
| var BSSMAP_FIELD_CellIdentificationList cid_list; |
| timer T := 4.0; |
| var integer i; |
| var integer paging_attempted_bsc; |
| var integer paging_attempted_bts[NUM_BTS]; |
| var integer paging_expired_bts[NUM_BTS]; |
| cid_list := valueof(ts_BSSMAP_CIL_noCell); |
| |
| f_init(); |
| |
| /* read counters before paging */ |
| paging_attempted_bsc := f_ctrl_get_ratectr_abs(IPA_CTRL, "bsc", 0, "paging:attempted"); |
| for (i := 0; i < NUM_BTS; i := i+1) { |
| paging_attempted_bts[i] := f_ctrl_get_ratectr_abs(IPA_CTRL, "bts", i, "paging:attempted"); |
| paging_expired_bts[i] := f_ctrl_get_ratectr_abs(IPA_CTRL, "bts", i, "paging:expired"); |
| } |
| |
| f_pageing_helper('001230000000001'H, cid_list, c_BtsId_all); |
| |
| /* expect the attempted pages on BSC and each BTSs to have incremented by one */ |
| f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bsc", 0, "paging:attempted", paging_attempted_bsc+1); |
| for (i := 0; i < NUM_BTS; i := i+1) { |
| f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bts", i, "paging:attempted", |
| paging_attempted_bts[i]+1); |
| } |
| |
| /* assume that 12s later the paging on all BTSs have expired and hence incremented by 1 */ |
| f_sleep(12.0); |
| for (i := 0; i < NUM_BTS; i := i+1) { |
| f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bts", i, "paging:expired", |
| paging_expired_bts[i]+1); |
| } |
| |
| f_shutdown_helper(); |
| } |
| |
| |
| /* Verify paging stops after A-RESET */ |
| testcase TC_paging_imsi_a_reset() runs on test_CT { |
| var BSSMAP_FIELD_CellIdentificationList cid_list; |
| timer T := 3.0; |
| cid_list := valueof(ts_BSSMAP_CIL_noCell); |
| f_pageing_helper('001010123456789'H, cid_list, c_BtsId_all); |
| |
| /* Perform a BSSMAP Reset and wait for ACK */ |
| BSSAP.send(ts_BSSAP_UNITDATA_req(g_bssap.sccp_addr_peer, g_bssap.sccp_addr_own, ts_BSSMAP_Reset(0))); |
| alt { |
| [] BSSAP.receive(tr_BSSAP_UNITDATA_ind(g_bssap.sccp_addr_own, g_bssap.sccp_addr_peer, tr_BSSMAP_ResetAck)) { } |
| [] BSSAP.receive { repeat; } |
| } |
| |
| /* Wait to avoid a possible race condition if a paging message is |
| * received right before the reset ACK. */ |
| f_sleep(0.2); |
| |
| /* Clear the queue, it might still contain stuff like BCCH FILLING */ |
| for (var integer i := 0; i < sizeof(IPA_RSL); i := i+1) { |
| IPA_RSL[i].clear; |
| } |
| |
| /* Wait for 3 seconds if any more PAGING CMD are received on RSL */ |
| T.start; |
| alt { |
| [] IPA_RSL[0].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, tr_RSL_PAGING_CMD(?))) { |
| setverdict(fail, "Received PAGING after A-RESET"); |
| mtc.stop; |
| } |
| [] IPA_RSL[1].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, tr_RSL_PAGING_CMD(?))) { |
| setverdict(fail, "Received PAGING after A-RESET"); |
| mtc.stop; |
| } |
| [] IPA_RSL[2].receive(tr_ASP_RSL_UD(IPAC_PROTO_RSL_TRX0, tr_RSL_PAGING_CMD(?))) { |
| setverdict(fail, "Received PAGING after A-RESET"); |
| mtc.stop; |
| } |
| [] T.timeout { |
| setverdict(pass); |
| } |
| } |
| |
| f_shutdown_helper(); |
| } |
| |
| /* Test RSL link drop causes counter increment */ |
| testcase TC_rsl_drop_counter() runs on test_CT { |
| var integer rsl_fail; |
| |
| f_init(1); |
| |
| rsl_fail := f_ctrl_get_ratectr_abs(IPA_CTRL, "bts", 0, "rsl_fail"); |
| |
| bts[0].rsl.vc_IPA.stop; |
| |
| f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bts", 0, "rsl_fail", rsl_fail+1); |
| |
| setverdict(pass); |
| } |
| |
| /* TODO: Test OML link drop causes counter increment */ |
| |
| /* The body of TC_rsl_unknown_unit_id() and TC_oml_unknown_unit_id() tests. */ |
| function f_ipa_unknown_unit_id(integer mp_bsc_ipa_port) runs on test_CT return boolean { |
| timer T := 10.0; |
| |
| bts[0].rsl.id := "IPA-0-RSL"; |
| bts[0].rsl.vc_IPA := IPA_Emulation_CT.create(bts[0].rsl.id & "-IPA"); |
| bts[0].rsl.ccm_pars := c_IPA_default_ccm_pars; |
| bts[0].rsl.ccm_pars.name := "Osmocom TTCN-3 BTS Simulator"; |
| bts[0].rsl.ccm_pars.unit_id := "0/0/0"; /* value which is unknown at BTS */ |
| |
| f_ipa_ctrl_start(mp_bsc_ip, mp_bsc_ctrl_port); |
| |
| f_init_mgcp("VirtMSC"); |
| |
| /* start RSL/OML connection (XXX re-uses RSL port/protocol definitions for OML) */ |
| map(bts[0].rsl.vc_IPA:IPA_PORT, system:IPA); |
| connect(bts[0].rsl.vc_IPA:IPA_RSL_PORT, self:IPA_RSL[0]); |
| bts[0].rsl.vc_IPA.start(IPA_Emulation.main_client(mp_bsc_ip, mp_bsc_ipa_port, "", 10000, bts[0].rsl.ccm_pars)); |
| |
| /* wait for IPA OML link to connect and then disconnect */ |
| T.start; |
| alt { |
| [] IPA_RSL[0].receive(ASP_IPA_Event:{up_down := ASP_IPA_EVENT_DOWN}) { |
| T.stop; |
| return true; |
| } |
| [] IPA_RSL[0].receive { repeat } |
| [] T.timeout { |
| return false; |
| } |
| } |
| return false; |
| } |
| |
| /* BSC should close an RSL connection from a BTS with unknown unit ID (OS#2714). */ |
| testcase TC_rsl_unknown_unit_id() runs on test_CT { |
| if (f_ipa_unknown_unit_id(mp_bsc_rsl_port)) { |
| setverdict(pass); |
| } else { |
| setverdict(fail, "Timeout RSL waiting for connection to close"); |
| } |
| } |
| |
| |
| /* BSC should close an RSL connection from a BTS with unknown unit ID (OS#2714). */ |
| testcase TC_oml_unknown_unit_id() runs on test_CT { |
| if (f_ipa_unknown_unit_id(mp_bsc_oml_port)) { |
| setverdict(pass); |
| } else { |
| setverdict(fail, "Timeout OML waiting for connection to close"); |
| } |
| } |
| |
| |
| /*********************************************************************** |
| * "New world" test cases using RSL_Emulation + BSSMAP_Emulation |
| ***********************************************************************/ |
| |
| import from BSSMAP_Emulation all; |
| import from RSL_Emulation all; |
| import from MSC_ConnectionHandler all; |
| |
| type function void_fn(charstring id) runs on MSC_ConnHdlr; |
| |
| /* helper function to create and connect a MSC_ConnHdlr component */ |
| private function f_connect_handler(inout MSC_ConnHdlr vc_conn) runs on test_CT { |
| connect(vc_conn:BSSMAPEM, g_bssap.vc_BSSMAP:PROC); |
| connect(vc_conn:MGCP_PROC, vc_MGCP:MGCP_PROC); |
| connect(vc_conn:RSL, bts[0].rsl.vc_RSL:CLIENT_PT); |
| connect(vc_conn:RSL_PROC, bts[0].rsl.vc_RSL:RSL_PROC); |
| if (isvalue(bts[1])) { |
| connect(vc_conn:RSL1, bts[1].rsl.vc_RSL:CLIENT_PT); |
| connect(vc_conn:RSL1_PROC, bts[1].rsl.vc_RSL:RSL_PROC); |
| } |
| connect(vc_conn:BSSAP, g_bssap.vc_BSSMAP:CLIENT); |
| connect(vc_conn:MGCP, vc_MGCP:MGCP_CLIENT); |
| } |
| |
| function f_start_handler(void_fn fn, template (omit) TestHdlrParams pars := omit) |
| runs on test_CT return MSC_ConnHdlr { |
| var charstring id := testcasename(); |
| var MSC_ConnHdlr vc_conn; |
| vc_conn := MSC_ConnHdlr.create(id); |
| f_connect_handler(vc_conn); |
| vc_conn.start(f_handler_init(fn, id, pars)); |
| return vc_conn; |
| } |
| |
| /* first function inside ConnHdlr component; sets g_pars + starts function */ |
| private function f_handler_init(void_fn fn, charstring id, template (omit) TestHdlrParams pars := omit) |
| runs on MSC_ConnHdlr { |
| if (isvalue(pars)) { |
| g_pars := valueof(pars); |
| } |
| fn.apply(id); |
| } |
| |
| /* Establish signalling channel (non-assignment case) followed by cipher mode */ |
| private function f_tc_ciph_mode_a5(charstring id) runs on MSC_ConnHdlr { |
| var template PDU_BSSAP exp_compl := f_gen_exp_compl(); |
| var PDU_BSSAP ass_cmd := f_gen_ass_req(); |
| ass_cmd.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelTypeSIGNAL); |
| ass_cmd.pdu.bssmap.assignmentRequest.circuitIdentityCode := omit; |
| ass_cmd.pdu.bssmap.assignmentRequest.aoIPTransportLayer := omit; |
| exp_compl.pdu.bssmap.assignmentComplete.circuitIdentityCode := omit; |
| exp_compl.pdu.bssmap.assignmentComplete.aoIPTransportLayer := omit; |
| |
| f_establish_fully(ass_cmd, exp_compl); |
| } |
| testcase TC_ciph_mode_a5_0() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| pars.encr := valueof(t_EncrParams('01'O, f_rnd_octstring(8))); |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_ciph_mode_a5), pars); |
| vc_conn.done; |
| } |
| testcase TC_ciph_mode_a5_1() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| pars.encr := valueof(t_EncrParams('02'O, f_rnd_octstring(8))); |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_ciph_mode_a5), pars); |
| vc_conn.done; |
| } |
| testcase TC_ciph_mode_a5_3() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| pars.encr := valueof(t_EncrParams('08'O, f_rnd_octstring(8))); |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_ciph_mode_a5), pars); |
| vc_conn.done; |
| } |
| |
| |
| /* establish initial channel, enable ciphering followed by assignment to ciphered channel */ |
| private function f_tc_assignment_fr_a5(charstring id) runs on MSC_ConnHdlr { |
| var template PDU_BSSAP exp_compl := f_gen_exp_compl(); |
| var PDU_BSSAP ass_cmd := f_gen_ass_req(); |
| |
| ass_cmd.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType); |
| ass_cmd.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR})); |
| |
| f_establish_fully(ass_cmd, exp_compl); |
| } |
| testcase TC_assignment_fr_a5_0() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| pars.encr := valueof(t_EncrParams('01'O, f_rnd_octstring(8))); |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_assignment_fr_a5), pars); |
| vc_conn.done; |
| } |
| testcase TC_assignment_fr_a5_1() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| pars.encr := valueof(t_EncrParams('02'O, f_rnd_octstring(8))); |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_assignment_fr_a5), pars); |
| vc_conn.done; |
| } |
| testcase TC_assignment_fr_a5_3() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| pars.encr := valueof(t_EncrParams('08'O, f_rnd_octstring(8))); |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_assignment_fr_a5), pars); |
| vc_conn.done; |
| } |
| |
| /* Expect ASSIGNMENT FAIL if mandatory IE is missing */ |
| private function f_tc_assignment_fr_a5_1_codec_missing(charstring id) runs on MSC_ConnHdlr { |
| g_pars := f_gen_test_hdlr_pars(); |
| var template PDU_BSSAP exp_fail := tr_BSSMAP_AssignmentFail; |
| var PDU_BSSAP ass_cmd := f_gen_ass_req(); |
| const OCT8 kc := '0001020304050607'O; |
| |
| ass_cmd.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType); |
| /* Omit: ass_cmd.pdu.bssmap.assignmentRequest.codecList */ |
| |
| f_establish_fully(ass_cmd, exp_fail); |
| } |
| testcase TC_assignment_fr_a5_1_codec_missing() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| vc_conn := f_start_handler(refers(f_tc_assignment_fr_a5_1_codec_missing)); |
| vc_conn.done; |
| } |
| |
| private function f_tc_assignment_fr_a5_4(charstring id) runs on MSC_ConnHdlr { |
| g_pars := f_gen_test_hdlr_pars(); |
| var template PDU_BSSAP exp_compl := f_gen_exp_compl(); |
| var PDU_BSSAP ass_cmd := f_gen_ass_req(); |
| const OCT8 kc := '0001020304050607'O; |
| const OCT16 kc128 := kc & kc; |
| |
| ass_cmd.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType); |
| ass_cmd.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR})); |
| f_establish_fully(ass_cmd, exp_compl); |
| f_cipher_mode('10'O, kc, kc128, true); |
| /* TODO: expect GSM0808_CAUSE_CIPHERING_ALGORITHM_NOT_SUPPORTED cause value */ |
| } |
| testcase TC_assignment_fr_a5_4() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| vc_conn := f_start_handler(refers(f_tc_assignment_fr_a5_4)); |
| vc_conn.done; |
| } |
| |
| |
| private function f_tc_assignment_sign(charstring id) runs on MSC_ConnHdlr { |
| g_pars := f_gen_test_hdlr_pars(); |
| var template PDU_BSSAP exp_compl := tr_BSSMAP_AssignmentComplete(omit, omit); |
| var PDU_BSSAP ass_cmd := f_gen_ass_req(); |
| ass_cmd.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelTypeSIGNAL); |
| f_establish_fully(ass_cmd, exp_compl); |
| } |
| |
| testcase TC_assignment_sign() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| vc_conn := f_start_handler(refers(f_tc_assignment_sign)); |
| vc_conn.done; |
| } |
| |
| /*********************************************************************** |
| * Codec (list) testing |
| ***********************************************************************/ |
| |
| /* check if the given rsl_mode is compatible with the a_elem */ |
| private function f_match_codec(BSSMAP_FIELD_CodecElement a_elem, RSL_IE_ChannelMode rsl_mode) |
| return boolean { |
| select (a_elem.codecType) { |
| case (GSM_FR) { |
| if (match(rsl_mode, tr_RSL_ChanMode(RSL_CHRT_TCH_F, RSL_CMOD_SP_GSM1))) { |
| return true; |
| } |
| } |
| case (GSM_HR) { |
| if (match(rsl_mode, tr_RSL_ChanMode(RSL_CHRT_TCH_H, RSL_CMOD_SP_GSM1))) { |
| return true; |
| } |
| } |
| case (GSM_EFR) { |
| if (match(rsl_mode, tr_RSL_ChanMode(RSL_CHRT_TCH_F, RSL_CMOD_SP_GSM2))) { |
| return true; |
| } |
| } |
| case (FR_AMR) { |
| if (match(rsl_mode, tr_RSL_ChanMode(RSL_CHRT_TCH_F, RSL_CMOD_SP_GSM3))) { |
| return true; |
| } |
| } |
| case (HR_AMR) { |
| if (match(rsl_mode, tr_RSL_ChanMode(RSL_CHRT_TCH_H, RSL_CMOD_SP_GSM3))) { |
| return true; |
| } |
| } |
| case else { } |
| } |
| return false; |
| } |
| |
| /* check if the given rsl_mode is compatible with the a_list */ |
| private function f_match_codecs(BSSMAP_IE_SpeechCodecList a_list, RSL_IE_ChannelMode rsl_mode) |
| return boolean { |
| for (var integer i := 0; i < sizeof(a_list); i := i+1) { |
| if (f_match_codec(a_list.codecElements[i], rsl_mode)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /* determine BSSMAP_IE_ChannelType from *first* element of BSSMAP_FIELD_CodecElement */ |
| function f_BSSMAP_chtype_from_codec(BSSMAP_FIELD_CodecElement a_elem) |
| return BSSMAP_IE_ChannelType { |
| /* FIXME: actually look at all elements of BSSMAP_IE_SpeechCodecList */ |
| var BSSMAP_IE_ChannelType ret := valueof(ts_BSSMAP_IE_ChannelType); |
| select (a_elem.codecType) { |
| case (GSM_FR) { |
| ret.channelRateAndType := ChRate_TCHF; |
| ret.speechId_DataIndicator := Spdi_TCHF_FR; |
| } |
| case (GSM_HR) { |
| ret.channelRateAndType := ChRate_TCHH; |
| ret.speechId_DataIndicator := Spdi_TCHH_HR; |
| } |
| case (GSM_EFR) { |
| ret.channelRateAndType := ChRate_TCHF; |
| ret.speechId_DataIndicator := Spdi_TCHF_EFR; |
| } |
| case (FR_AMR) { |
| ret.channelRateAndType := ChRate_TCHF; |
| ret.speechId_DataIndicator := Spdi_TCHF_AMR; |
| } |
| case (HR_AMR) { |
| ret.channelRateAndType := ChRate_TCHH; |
| ret.speechId_DataIndicator := Spdi_TCHH_AMR; |
| } |
| case else { |
| setverdict(fail, "Unsupported codec ", a_elem); |
| mtc.stop; |
| } |
| } |
| return ret; |
| } |
| |
| private function f_rsl_chmod_tmpl_from_codec(BSSMAP_FIELD_CodecElement a_elem) |
| return template RSL_IE_Body { |
| var template RSL_IE_Body mode_ie := { |
| chan_mode := { |
| len := ?, |
| reserved := ?, |
| dtx_d := ?, |
| dtx_u := ?, |
| spd_ind := RSL_SPDI_SPEECH, |
| ch_rate_type := -, |
| coding_alg_rate := - |
| } |
| } |
| |
| select (a_elem.codecType) { |
| case (GSM_FR) { |
| mode_ie.chan_mode.ch_rate_type := RSL_CHRT_TCH_F; |
| mode_ie.chan_mode.coding_alg_rate := RSL_CMOD_SP_GSM1; |
| } |
| case (GSM_HR) { |
| mode_ie.chan_mode.ch_rate_type := RSL_CHRT_TCH_H; |
| mode_ie.chan_mode.coding_alg_rate := RSL_CMOD_SP_GSM1; |
| } |
| case (GSM_EFR) { |
| mode_ie.chan_mode.ch_rate_type := RSL_CHRT_TCH_F; |
| mode_ie.chan_mode.coding_alg_rate := RSL_CMOD_SP_GSM2; |
| } |
| case (FR_AMR) { |
| mode_ie.chan_mode.ch_rate_type := RSL_CHRT_TCH_F; |
| mode_ie.chan_mode.coding_alg_rate := RSL_CMOD_SP_GSM3; |
| } |
| case (HR_AMR) { |
| mode_ie.chan_mode.ch_rate_type := RSL_CHRT_TCH_H; |
| mode_ie.chan_mode.coding_alg_rate := RSL_CMOD_SP_GSM3; |
| } |
| } |
| return mode_ie; |
| } |
| |
| type record CodecListTest { |
| BSSMAP_IE_SpeechCodecList codec_list, |
| charstring id |
| } |
| type record of CodecListTest CodecListTests |
| |
| private function f_TC_assignment_codec(charstring id) runs on MSC_ConnHdlr { |
| var PDU_BSSAP ass_cmd := f_gen_ass_req(); |
| var template PDU_BSSAP exp_compl := f_gen_exp_compl(); |
| |
| /* puzzle together the ASSIGNMENT REQ for given codec[s] */ |
| if (mp_bssap_cfg.transport == BSSAP_TRANSPORT_AoIP) { |
| ass_cmd.pdu.bssmap.assignmentRequest.codecList := g_pars.ass_codec_list; |
| exp_compl.pdu.bssmap.assignmentComplete.speechCodec.codecElements[0] := |
| g_pars.ass_codec_list.codecElements[0]; |
| } |
| ass_cmd.pdu.bssmap.assignmentRequest.channelType := |
| f_BSSMAP_chtype_from_codec(g_pars.ass_codec_list.codecElements[0]); |
| log("expecting ASS COMPL like this: ", exp_compl); |
| |
| f_establish_fully(ass_cmd, exp_compl); |
| |
| /* Verify that the RSL-side activation actually matches our expectations */ |
| var RSL_Message rsl := f_rslem_get_last_act(RSL_PROC, 0, g_chan_nr); |
| |
| var RSL_IE_Body mode_ie; |
| if (f_rsl_find_ie(rsl, RSL_IE_CHAN_MODE, mode_ie) == false) { |
| setverdict(fail, "Couldn't find CHAN_MODE IE"); |
| mtc.stop; |
| } |
| var template RSL_IE_Body t_mode_ie := f_rsl_chmod_tmpl_from_codec(g_pars.ass_codec_list.codecElements[0]); |
| if (not match(mode_ie, t_mode_ie)) { |
| setverdict(fail, "RSL Channel Mode IE doesn't match expectation"); |
| } |
| |
| var RSL_IE_Body mr_conf; |
| if (g_pars.expect_mr_conf_ie != omit) { |
| if (f_rsl_find_ie(rsl, RSL_IE_MR_CONFIG, mr_conf) == false) { |
| setverdict(fail, "Missing MR CONFIG IE in RSL Chan Activ"); |
| mtc.stop; |
| } |
| log("found RSL MR CONFIG IE: ", mr_conf); |
| |
| if (not match(mr_conf, g_pars.expect_mr_conf_ie)) { |
| setverdict(fail, "RSL MR CONFIG IE does not match expectation. Expected: ", |
| g_pars.expect_mr_conf_ie); |
| } |
| } else { |
| if (f_rsl_find_ie(rsl, RSL_IE_MR_CONFIG, mr_conf) == true) { |
| log("found RSL MR CONFIG IE: ", mr_conf); |
| setverdict(fail, "Found MR CONFIG IE in RSL Chan Activ, expecting omit"); |
| mtc.stop; |
| } |
| } |
| } |
| |
| testcase TC_assignment_codec_fr() runs on test_CT { |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| var MSC_ConnHdlr vc_conn; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR})); |
| vc_conn := f_start_handler(refers(f_TC_assignment_codec), pars); |
| vc_conn.done; |
| } |
| |
| testcase TC_assignment_codec_hr() runs on test_CT { |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| var MSC_ConnHdlr vc_conn; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecHR})); |
| vc_conn := f_start_handler(refers(f_TC_assignment_codec), pars); |
| vc_conn.done; |
| } |
| |
| testcase TC_assignment_codec_efr() runs on test_CT { |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| var MSC_ConnHdlr vc_conn; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecEFR})); |
| vc_conn := f_start_handler(refers(f_TC_assignment_codec), pars); |
| vc_conn.done; |
| } |
| |
| testcase TC_assignment_codec_amr_f() runs on test_CT { |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| var MSC_ConnHdlr vc_conn; |
| |
| /* Note: This setups the codec configuration. The parameter payload in |
| * mr_conf must be consistant with the parameter codecElements in pars |
| * and also must match the amr-config in osmo-bsc.cfg! */ |
| var RSL_IE_Body mr_conf := { |
| other := { |
| len := 2, |
| payload := '2804'O |
| } |
| }; |
| |
| pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecAMR_F})); |
| pars.ass_codec_list.codecElements[0].s0_7 := '00000110'B; |
| pars.ass_codec_list.codecElements[0].s8_15 := '01010111'B; |
| pars.expect_mr_conf_ie := mr_conf; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| vc_conn := f_start_handler(refers(f_TC_assignment_codec), pars); |
| vc_conn.done; |
| } |
| |
| testcase TC_assignment_codec_amr_h() runs on test_CT { |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| var MSC_ConnHdlr vc_conn; |
| |
| /* See note above */ |
| var RSL_IE_Body mr_conf := { |
| other := { |
| len := 2, |
| payload := '2804'O |
| } |
| }; |
| |
| pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecAMR_H})); |
| pars.ass_codec_list.codecElements[0].s0_7 := '00000110'B; |
| pars.ass_codec_list.codecElements[0].s8_15 := '00000111'B; |
| pars.expect_mr_conf_ie := mr_conf; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| vc_conn := f_start_handler(refers(f_TC_assignment_codec), pars); |
| vc_conn.done; |
| } |
| |
| /* test the procedure of the MSC requesting a Classmark Update: |
| * a) BSSMAP Classmark Request should result in RR CLASSMARK ENQUIRY, |
| * b) L3 RR CLASSMARK CHANGE should result in BSSMAP CLASSMARK UPDATE */ |
| private function f_tc_classmark(charstring id) runs on MSC_ConnHdlr { |
| g_pars := f_gen_test_hdlr_pars(); |
| |
| f_create_chan_and_exp(); |
| /* we should now have a COMPL_L3 at the MSC */ |
| BSSAP.receive(tr_BSSMAP_ComplL3); |
| |
| BSSAP.send(ts_BSSMAP_ClassmarkRequest); |
| RSL.receive(tr_RSL_DATA_REQ(g_chan_nr, ?, decmatch tr_RRM_CM_ENQUIRY)); |
| |
| f_rsl_send_l3(ts_RRM_CM_CHG(valueof(ts_CM2))); |
| BSSAP.receive(tr_BSSMAP_ClassmarkUpd(?, omit)); |
| setverdict(pass); |
| } |
| testcase TC_classmark() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_classmark)); |
| vc_conn.done; |
| } |
| |
| private function f_est_single_l3(template PDU_ML3_MS_NW l3) runs on MSC_ConnHdlr { |
| g_pars := f_gen_test_hdlr_pars(); |
| f_create_chan_and_exp(); |
| /* we should now have a COMPL_L3 at the MSC */ |
| BSSAP.receive(tr_BSSMAP_ComplL3); |
| |
| /* send the single message we want to send */ |
| f_rsl_send_l3(l3); |
| } |
| |
| private function f_bssap_expect_nothing(float sec := 5.00) runs on MSC_ConnHdlr { |
| timer T := sec; |
| var PDU_BSSAP bssap; |
| T.start; |
| alt { |
| [] BSSAP.receive(PDU_BSSAP:?) -> value bssap { |
| setverdict(fail, "Unexpected BSSMAP ", bssap); |
| mtc.stop; |
| } |
| [] T.timeout { |
| setverdict(pass); |
| } |
| } |
| } |
| |
| /* unsolicited ASSIGNMENT FAIL (without ASSIGN) from MS shouldn't bring BSC down */ |
| private function f_tc_unsol_ass_fail(charstring id) runs on MSC_ConnHdlr { |
| f_est_single_l3(ts_RRM_AssignmentFailure('00'O)); |
| f_bssap_expect_nothing(); |
| } |
| testcase TC_unsol_ass_fail() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_unsol_ass_fail)); |
| vc_conn.done; |
| } |
| |
| |
| /* unsolicited ASSIGNMENT COMPLETE (without ASSIGN) from MS shouldn't bring BSC down */ |
| private function f_tc_unsol_ass_compl(charstring id) runs on MSC_ConnHdlr { |
| f_est_single_l3(ts_RRM_AssignmentComplete('00'O)); |
| f_bssap_expect_nothing(); |
| } |
| testcase TC_unsol_ass_compl() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_unsol_ass_compl)); |
| vc_conn.done; |
| } |
| |
| |
| /* unsolicited HANDOVER FAIL (without ASSIGN) from MS shouldn't bring BSC down */ |
| private function f_tc_unsol_ho_fail(charstring id) runs on MSC_ConnHdlr { |
| f_est_single_l3(ts_RRM_HandoverFailure('00'O)); |
| f_bssap_expect_nothing(); |
| } |
| testcase TC_unsol_ho_fail() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_unsol_ho_fail)); |
| vc_conn.done; |
| } |
| |
| |
| /* short message from MS should be ignored */ |
| private function f_tc_err_82_short_msg(charstring id) runs on MSC_ConnHdlr { |
| g_pars := f_gen_test_hdlr_pars(); |
| f_create_chan_and_exp(); |
| /* we should now have a COMPL_L3 at the MSC */ |
| BSSAP.receive(tr_BSSMAP_ComplL3); |
| |
| /* send short message */ |
| RSL.send(ts_RSL_DATA_IND(g_chan_nr, valueof(ts_RslLinkID_DCCH(0)), ''O)); |
| f_bssap_expect_nothing(); |
| } |
| testcase TC_err_82_short_msg() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_err_82_short_msg)); |
| vc_conn.done; |
| } |
| |
| |
| /* 24.008 8.4 Unknown message must trigger RR STATUS */ |
| private function f_tc_err_84_unknown_msg(charstring id) runs on MSC_ConnHdlr { |
| f_est_single_l3(ts_RRM_UL_REL('00'O)); |
| timer T := 3.0 |
| alt { |
| [] RSL.receive(tr_RSL_DATA_REQ(g_chan_nr, ?, decmatch tr_RRM_RR_STATUS)) { |
| setverdict(pass); |
| } |
| [] BSSAP.receive { setverdict(fail, "unexpected BSSAP"); } |
| [] T.timeout { setverdict(fail, "Timeout waiting for RR STATUS"); } |
| } |
| } |
| testcase TC_err_84_unknown_msg() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| f_init(1, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_err_84_unknown_msg)); |
| vc_conn.done; |
| } |
| |
| /*********************************************************************** |
| * Handover |
| ***********************************************************************/ |
| |
| /* execute a "bts <0-255> trx <0-255> timeslot <0-7> " command on given Dchan */ |
| private function f_vty_ts_action(charstring suffix, integer bts_nr, integer trx_nr, integer ts_nr) |
| runs on test_CT { |
| var charstring cmd := "bts "&int2str(bts_nr)&" trx "&int2str(trx_nr)& |
| " timeslot "&int2str(ts_nr)&" "; |
| f_vty_transceive(BSCVTY, cmd & suffix); |
| } |
| |
| /* execute a "bts <0-255> trx <0-255> timeslot <0-7> sub-slot <0-7>" command on given Dchan */ |
| private function f_vty_ss_action(charstring suffix, integer bts_nr, integer trx_nr, RslChannelNr chan_nr) |
| runs on MSC_ConnHdlr { |
| /* FIXME: resolve those from component-global state */ |
| var integer ts_nr := chan_nr.tn; |
| var integer ss_nr; |
| if (ischosen(chan_nr.u.ch0)) { |
| ss_nr := 0; |
| } else if (ischosen(chan_nr.u.lm)) { |
| ss_nr := chan_nr.u.lm.sub_chan; |
| } else if (ischosen(chan_nr.u.sdcch4)) { |
| ss_nr := chan_nr.u.sdcch4.sub_chan; |
| } else if (ischosen(chan_nr.u.sdcch8)) { |
| ss_nr := chan_nr.u.sdcch8.sub_chan; |
| } else { |
| setverdict(fail, "Invalid ChanNr ", chan_nr); |
| mtc.stop; |
| } |
| |
| var charstring cmd := "bts "&int2str(bts_nr)&" trx "&int2str(trx_nr)& |
| " timeslot "&int2str(ts_nr)&" sub-slot "&int2str(ss_nr)&" "; |
| f_vty_transceive(BSCVTY, cmd & suffix); |
| } |
| |
| private function f_vty_handover(integer bts_nr, integer trx_nr, RslChannelNr chan_nr, |
| integer new_bts_nr) |
| runs on MSC_ConnHdlr { |
| f_vty_ss_action("handover " & int2str(new_bts_nr), bts_nr, trx_nr, chan_nr); |
| } |
| |
| /* intra-BSC hand-over between BTS0 and BTS1 */ |
| private function f_tc_ho_int(charstring id) runs on MSC_ConnHdlr { |
| g_pars := f_gen_test_hdlr_pars(); |
| var template PDU_BSSAP exp_compl := f_gen_exp_compl(); |
| var PDU_BSSAP ass_cmd := f_gen_ass_req(); |
| const OCT8 kc := '0001020304050607'O; |
| |
| ass_cmd.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType); |
| ass_cmd.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR})); |
| |
| f_establish_fully(ass_cmd, exp_compl); |
| |
| var HandoverState hs := { |
| rr_ho_cmpl_seen := false, |
| handover_done := false, |
| old_chan_nr := - |
| }; |
| /* issue hand-over command on VTY */ |
| f_vty_handover(0, 0, g_chan_nr, 1); |
| /* temporarily suspend DChan processing on BTS1 to avoid race with RSLEM_register */ |
| f_rslem_suspend(RSL1_PROC); |
| |
| /* From the MGW perspective, a handover is is characterized by |
| * performing one MDCX operation with the MGW. So we expect to see |
| * one more MDCX during handover. */ |
| g_media.mgcp_conn[0].mdcx_seen_exp := g_media.mgcp_conn[0].crcx_seen_exp + 1; |
| |
| alt { |
| [] as_handover(hs); |
| } |
| |
| /* Check the amount of MGCP transactions is still consistant with the |
| * test expectation */ |
| f_check_mgcp_expectations() |
| f_sleep(0.5); |
| } |
| |
| testcase TC_ho_int() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| f_init(2, true); |
| f_sleep(1.0); |
| vc_conn := f_start_handler(refers(f_tc_ho_int)); |
| vc_conn.done; |
| } |
| |
| private function f_tc_ho_out_of_this_bsc(charstring id) runs on MSC_ConnHdlr { |
| g_pars := f_gen_test_hdlr_pars(); |
| |
| var PDU_BSSAP ass_req := f_gen_ass_req(); |
| ass_req.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType); |
| ass_req.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR})); |
| var template PDU_BSSAP exp_compl := f_gen_exp_compl(); |
| f_establish_fully(ass_req, exp_compl); |
| |
| f_vty_transceive(BSCVTY, "handover any to arfcn 123 bsic any"); |
| |
| BSSAP.receive(tr_BSSMAP_HandoverRequired); |
| |
| f_sleep(0.5); |
| /* The MSC negotiates Handover Request and Handover Request Ack with |
| * the other BSS and comes back with a BSSMAP Handover Command |
| * containing an RR Handover Command coming from the target BSS... */ |
| |
| var PDU_ML3_NW_MS rr_ho_cmd := valueof(ts_RR_HandoverCommand); |
| log("Remote cell's RR Handover Command passed through as L3 Info: ", rr_ho_cmd); |
| var octetstring rr_ho_cmd_enc := enc_PDU_ML3_NW_MS(rr_ho_cmd); |
| log("Remote cell's RR Handover Command passed through as L3 Info, encoded: ", rr_ho_cmd_enc); |
| BSSAP.send(ts_BSSMAP_HandoverCommand(rr_ho_cmd_enc)); |
| |
| /* expect the Handover Command to go out on RR */ |
| var RSL_Message rsl_ho_cmd |
| RSL.receive(tr_RSL_DATA_REQ(g_chan_nr, ?, ?)) -> value rsl_ho_cmd; |
| log("RSL Data Req went out to first BTS: ", rsl_ho_cmd); |
| var RSL_IE_Body rsl_ho_cmd_l3; |
| if (not f_rsl_find_ie(rsl_ho_cmd, RSL_IE_L3_INFO, rsl_ho_cmd_l3)) { |
| log("RSL message contains no L3 Info IE, expected RR Handover Command"); |
| setverdict(fail); |
| } else { |
| log("Found L3 Info: ", rsl_ho_cmd_l3); |
| if (rsl_ho_cmd_l3.l3_info.payload != rr_ho_cmd_enc) { |
| log("FAIL: the BSC sent out a different L3 Info, not matching the RR Handover Command the other BSS forwarded."); |
| setverdict(fail); |
| } else { |
| log("Success: the BSC sent out the same RR Handover Command the other BSS forwarded."); |
| setverdict(pass); |
| } |
| } |
| |
| /* When the other BSS has reported a completed handover, this side is |
| * torn down. */ |
| |
| var myBSSMAP_Cause cause_val := GSM0808_CAUSE_HANDOVER_SUCCESSFUL; |
| var BssmapCause cause := enum2int(cause_val); |
| BSSAP.send(ts_BSSMAP_ClearCommand(cause)); |
| |
| /* Expecting MGCP to DLCX the endpoint's two connections: towards BTS and towards MSC */ |
| var MgcpCommand mgcp; |
| interleave { |
| [] BSSAP.receive(tr_BSSMAP_ClearComplete); |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got first DLCX: ", mgcp); |
| } |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got second DLCX: ", mgcp); |
| } |
| } |
| setverdict(pass); |
| f_sleep(1.0); |
| } |
| testcase TC_ho_out_of_this_bsc() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| vc_conn := f_start_handler(refers(f_tc_ho_out_of_this_bsc)); |
| vc_conn.done; |
| } |
| |
| /* BSC asks for inter-BSC HO, but the MSC decides that it won't happen and |
| * simply never sends a BSSMAP Handover Command. */ |
| private function f_tc_ho_out_fail_no_msc_response(charstring id) runs on MSC_ConnHdlr { |
| g_pars := f_gen_test_hdlr_pars(); |
| |
| var PDU_BSSAP ass_req := f_gen_ass_req(); |
| ass_req.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType); |
| ass_req.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR})); |
| var template PDU_BSSAP exp_compl := f_gen_exp_compl(); |
| f_establish_fully(ass_req, exp_compl); |
| |
| f_vty_transceive(BSCVTY, "handover any to arfcn 123 bsic any"); |
| |
| BSSAP.receive(tr_BSSMAP_HandoverRequired); |
| |
| /* osmo-bsc should time out 10 seconds after the handover started. |
| * Let's give it a bit extra. */ |
| f_sleep(15.0); |
| |
| /* The old lchan and conn should still be active. See that arbitrary L3 |
| * is still going through. */ |
| var octetstring l3 := '0123456789'O; |
| RSL.send(ts_RSL_DATA_IND(g_chan_nr, valueof(ts_RslLinkID_DCCH(0)), l3)); |
| var template PDU_BSSAP exp_data := { |
| discriminator := '1'B, |
| spare := '0000000'B, |
| dlci := '00'O, |
| lengthIndicator := 5, |
| pdu := { |
| dtap := l3 |
| } |
| }; |
| BSSAP.receive(exp_data); |
| setverdict(pass); |
| f_sleep(1.0); |
| } |
| testcase TC_ho_out_fail_no_msc_response() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| vc_conn := f_start_handler(refers(f_tc_ho_out_fail_no_msc_response)); |
| vc_conn.done; |
| } |
| |
| /* BSC asks for inter-BSC HO, receives BSSMAP Handover Command, but MS reports |
| * RR Handover Failure. */ |
| private function f_tc_ho_out_fail_rr_ho_failure(charstring id) runs on MSC_ConnHdlr { |
| g_pars := f_gen_test_hdlr_pars(); |
| |
| var PDU_BSSAP ass_req := f_gen_ass_req(); |
| ass_req.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType); |
| ass_req.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR})); |
| var template PDU_BSSAP exp_compl := f_gen_exp_compl(); |
| f_establish_fully(ass_req, exp_compl); |
| |
| f_vty_transceive(BSCVTY, "handover any to arfcn 123 bsic any"); |
| |
| BSSAP.receive(tr_BSSMAP_HandoverRequired); |
| |
| f_sleep(0.5); |
| /* The MSC negotiates Handover Request and Handover Request Ack with |
| * the other BSS and comes back with a BSSMAP Handover Command |
| * containing an RR Handover Command coming from the target BSS... */ |
| |
| var PDU_ML3_NW_MS rr_ho_cmd := valueof(ts_RR_HandoverCommand); |
| log("Remote cell's RR Handover Command passed through as L3 Info: ", rr_ho_cmd); |
| var octetstring rr_ho_cmd_enc := enc_PDU_ML3_NW_MS(rr_ho_cmd); |
| log("Remote cell's RR Handover Command passed through as L3 Info, encoded: ", rr_ho_cmd_enc); |
| BSSAP.send(ts_BSSMAP_HandoverCommand(rr_ho_cmd_enc)); |
| |
| /* expect the Handover Command to go out on RR */ |
| var RSL_Message rsl_ho_cmd |
| RSL.receive(tr_RSL_DATA_REQ(g_chan_nr, ?, ?)) -> value rsl_ho_cmd; |
| log("RSL Data Req went out to first BTS: ", rsl_ho_cmd); |
| var RSL_IE_Body rsl_ho_cmd_l3; |
| if (not f_rsl_find_ie(rsl_ho_cmd, RSL_IE_L3_INFO, rsl_ho_cmd_l3)) { |
| log("RSL message contains no L3 Info IE, expected RR Handover Command"); |
| setverdict(fail); |
| } else { |
| log("Found L3 Info: ", rsl_ho_cmd_l3); |
| if (rsl_ho_cmd_l3.l3_info.payload != rr_ho_cmd_enc) { |
| log("FAIL: the BSC sent out a different L3 Info, not matching the RR Handover Command the other BSS forwarded."); |
| setverdict(fail); |
| } else { |
| log("Success: the BSC sent out the same RR Handover Command the other BSS forwarded."); |
| setverdict(pass); |
| } |
| } |
| |
| f_sleep(0.2); |
| f_rsl_send_l3(ts_RRM_HandoverFailure('00'O)); |
| |
| /* Should tell the MSC about the failure */ |
| BSSAP.receive(tr_BSSMAP_HandoverFailure); |
| |
| f_sleep(1.0); |
| |
| /* The old lchan and conn should still be active. See that arbitrary L3 |
| * is still going through. */ |
| var octetstring l3 := '0123456789'O; |
| RSL.send(ts_RSL_DATA_IND(g_chan_nr, valueof(ts_RslLinkID_DCCH(0)), l3)); |
| var template PDU_BSSAP exp_data := { |
| discriminator := '1'B, |
| spare := '0000000'B, |
| dlci := '00'O, |
| lengthIndicator := 5, |
| pdu := { |
| dtap := l3 |
| } |
| }; |
| BSSAP.receive(exp_data); |
| setverdict(pass); |
| f_sleep(1.0); |
| |
| setverdict(pass); |
| f_sleep(1.0); |
| } |
| testcase TC_ho_out_fail_rr_ho_failure() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| vc_conn := f_start_handler(refers(f_tc_ho_out_fail_rr_ho_failure)); |
| vc_conn.done; |
| } |
| |
| /* BSC asks for inter-BSC HO, receives BSSMAP Handover Command, but MS reports |
| * RR Handover Failure. */ |
| private function f_tc_ho_out_fail_no_ho_detect(charstring id) runs on MSC_ConnHdlr { |
| g_pars := f_gen_test_hdlr_pars(); |
| |
| var PDU_BSSAP ass_req := f_gen_ass_req(); |
| ass_req.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType); |
| ass_req.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR})); |
| var template PDU_BSSAP exp_compl := f_gen_exp_compl(); |
| f_establish_fully(ass_req, exp_compl); |
| |
| f_vty_transceive(BSCVTY, "handover any to arfcn 123 bsic any"); |
| |
| BSSAP.receive(tr_BSSMAP_HandoverRequired); |
| |
| f_sleep(0.5); |
| /* The MSC negotiates Handover Request and Handover Request Ack with |
| * the other BSS and comes back with a BSSMAP Handover Command |
| * containing an RR Handover Command coming from the target BSS... */ |
| |
| var PDU_ML3_NW_MS rr_ho_cmd := valueof(ts_RR_HandoverCommand); |
| log("Remote cell's RR Handover Command passed through as L3 Info: ", rr_ho_cmd); |
| var octetstring rr_ho_cmd_enc := enc_PDU_ML3_NW_MS(rr_ho_cmd); |
| log("Remote cell's RR Handover Command passed through as L3 Info, encoded: ", rr_ho_cmd_enc); |
| BSSAP.send(ts_BSSMAP_HandoverCommand(rr_ho_cmd_enc)); |
| |
| /* expect the Handover Command to go out on RR */ |
| var RSL_Message rsl_ho_cmd |
| RSL.receive(tr_RSL_DATA_REQ(g_chan_nr, ?, ?)) -> value rsl_ho_cmd; |
| log("RSL Data Req went out to first BTS: ", rsl_ho_cmd); |
| var RSL_IE_Body rsl_ho_cmd_l3; |
| if (not f_rsl_find_ie(rsl_ho_cmd, RSL_IE_L3_INFO, rsl_ho_cmd_l3)) { |
| log("RSL message contains no L3 Info IE, expected RR Handover Command"); |
| setverdict(fail); |
| } else { |
| log("Found L3 Info: ", rsl_ho_cmd_l3); |
| if (rsl_ho_cmd_l3.l3_info.payload != rr_ho_cmd_enc) { |
| log("FAIL: the BSC sent out a different L3 Info, not matching the RR Handover Command the other BSS forwarded."); |
| setverdict(fail); |
| } else { |
| log("Success: the BSC sent out the same RR Handover Command the other BSS forwarded."); |
| setverdict(pass); |
| } |
| } |
| |
| /* The MS never shows up on the remote BSS. Eventually the BSC times |
| * out and we run into 3GPP TS 48.008 3.1.5.3.3 "Abnormal Conditions": |
| * RR should be released and Clear Request should go to the MSC. */ |
| |
| var MgcpCommand mgcp; |
| var octetstring l3_rr_chan_rel := '060D00'O; |
| interleave { |
| [] RSL.receive(tr_RSL_DEACT_SACCH(g_chan_nr)) { |
| log("Got Deact SACCH"); |
| } |
| [] RSL.receive(tr_RSL_DATA_REQ(g_chan_nr, ?, l3_rr_chan_rel)) { |
| log("Got RR Release"); |
| } |
| [] RSL.receive(tr_RSL_MsgTypeD(RSL_MT_RF_CHAN_REL)) { |
| log("Got RF Chan Rel"); |
| RSL.send(ts_RSL_RF_CHAN_REL_ACK(g_chan_nr)); |
| } |
| [] BSSAP.receive(tr_BSSMAP_ClearRequest) { |
| log("Got BSSMAP Clear Request"); |
| } |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got first DLCX: ", mgcp); |
| } |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got second DLCX: ", mgcp); |
| } |
| } |
| |
| setverdict(pass); |
| f_sleep(1.0); |
| } |
| testcase TC_ho_out_fail_no_ho_detect() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| vc_conn := f_start_handler(refers(f_tc_ho_out_fail_no_ho_detect)); |
| vc_conn.done; |
| } |
| |
| private function f_tc_ho_into_this_bsc(charstring id) runs on MSC_ConnHdlr { |
| /* Hack: the proper way would be to wait for the BSSMAP Handover Request ACK and extract the |
| * actual assigned chan_nr from its L3 (RR Handover Command) message. But osmo-bsc starts acting |
| * on the lchan even before we get a chance to evaluate the BSSMAP Handover Request ACK. So we |
| * need to assume that osmo-bsc will activate TS 1 and already set up this lchan's RSL emulation |
| * before we get started. */ |
| var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1, RSL_CHAN_NR_Bm_ACCH)); |
| f_rslem_register(0, new_chan_nr); |
| g_chan_nr := new_chan_nr; |
| f_sleep(1.0); |
| |
| f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); |
| f_MscConnHdlr_init(g_pars.media_nr, "127.0.0.2", "127.0.0.3", FR_AMR); |
| activate(as_Media()); |
| |
| BSSAP.send(ts_BSSAP_Conn_Req(g_pars.handover.sccp_addr_bsc, g_pars.handover.sccp_addr_msc, |
| f_gen_handover_req())); |
| BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_CONF_IND); |
| |
| /* The RSL Emulation magically accepts the Chan Activ behind the scenes. */ |
| |
| var PDU_BSSAP rx_bssap; |
| var octetstring ho_command_str; |
| |
| BSSAP.receive(tr_BSSMAP_HandoverRequestAcknowledge(?)) -> value rx_bssap; |
| |
| ho_command_str := rx_bssap.pdu.bssmap.handoverRequestAck.layer3Information.layer3info; |
| log("Received L3 Info in HO Request Ack: ", ho_command_str); |
| var PDU_ML3_NW_MS ho_command := dec_PDU_ML3_NW_MS(ho_command_str); |
| log("L3 Info in HO Request Ack is ", ho_command); |
| |
| var GsmArfcn arfcn; |
| var RslChannelNr actual_new_chan_nr; |
| f_ChDesc2RslChanNr(ho_command.msgs.rrm.handoverCommand.channelDescription2, |
| actual_new_chan_nr, arfcn); |
| |
| if (actual_new_chan_nr != new_chan_nr) { |
| log("ERROR: osmo-bsc assigned a different lchan than we assumed above -- this test will fail now.", |
| " Assumed: ", new_chan_nr, " Assigned: ", actual_new_chan_nr); |
| setverdict(fail); |
| return; |
| } |
| log("Handover Command chan_nr is", actual_new_chan_nr); |
| |
| /* Now the MSC forwards the RR Handover Command to the other BSC, which |
| * tells the MS to handover to the new lchan. Here comes the new MS on |
| * the new lchan with a Handover RACH: */ |
| |
| /* send handover detect */ |
| |
| RSL.send(ts_RSL_HANDO_DET(new_chan_nr)); |
| |
| BSSAP.receive(tr_BSSMAP_HandoverDetect); |
| |
| /* send handover complete over the new channel */ |
| |
| var PDU_ML3_MS_NW l3_tx := valueof(ts_RRM_HandoverComplete('00'O)); |
| RSL.send(ts_RSL_EST_IND(new_chan_nr, valueof(ts_RslLinkID_DCCH(0)), |
| enc_PDU_ML3_MS_NW(l3_tx))); |
| |
| BSSAP.receive(tr_BSSMAP_HandoverComplete); |
| setverdict(pass); |
| } |
| testcase TC_ho_into_this_bsc() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| pars.handover.sccp_addr_msc := g_bssap.sccp_addr_own; |
| pars.handover.sccp_addr_bsc := g_bssap.sccp_addr_peer; |
| |
| vc_conn := f_start_handler(refers(f_tc_ho_into_this_bsc), pars); |
| vc_conn.done; |
| } |
| |
| private function f_tc_ho_in_fail_msc_clears(charstring id) runs on MSC_ConnHdlr { |
| var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1, RSL_CHAN_NR_Bm_ACCH)); |
| f_rslem_register(0, new_chan_nr); |
| g_chan_nr := new_chan_nr; |
| f_sleep(1.0); |
| |
| f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); |
| f_MscConnHdlr_init(g_pars.media_nr, "127.0.0.2", "127.0.0.3", FR_AMR); |
| activate(as_Media()); |
| |
| BSSAP.send(ts_BSSAP_Conn_Req(g_pars.handover.sccp_addr_bsc, g_pars.handover.sccp_addr_msc, |
| f_gen_handover_req())); |
| BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_CONF_IND); |
| |
| /* The RSL Emulation magically accepts the Chan Activ behind the scenes. */ |
| |
| var PDU_BSSAP rx_bssap; |
| var octetstring ho_command_str; |
| |
| BSSAP.receive(tr_BSSMAP_HandoverRequestAcknowledge(?)) -> value rx_bssap; |
| |
| ho_command_str := rx_bssap.pdu.bssmap.handoverRequestAck.layer3Information.layer3info; |
| log("Received L3 Info in HO Request Ack: ", ho_command_str); |
| var PDU_ML3_NW_MS ho_command := dec_PDU_ML3_NW_MS(ho_command_str); |
| log("L3 Info in HO Request Ack is ", ho_command); |
| |
| var GsmArfcn arfcn; |
| var RslChannelNr actual_new_chan_nr; |
| f_ChDesc2RslChanNr(ho_command.msgs.rrm.handoverCommand.channelDescription2, |
| actual_new_chan_nr, arfcn); |
| |
| if (actual_new_chan_nr != new_chan_nr) { |
| log("ERROR: osmo-bsc assigned a different lchan than we assumed above -- this test will fail now.", |
| " Assumed: ", new_chan_nr, " Assigned: ", actual_new_chan_nr); |
| setverdict(fail); |
| return; |
| } |
| log("Handover Command chan_nr is", actual_new_chan_nr); |
| |
| /* Now the MSC forwards the RR Handover Command to the other BSC, which |
| * tells the MS to handover to the new lchan. In this case, the MS |
| * reports a Handover Failure to the old BSS, which forwards a BSSMAP |
| * Handover Failure to the MSC. The procedure according to 3GPP TS |
| * 48.008 3.1.5.3.2 "Handover Failure" is then that the MSC sends a |
| * BSSMAP Clear Command: */ |
| |
| var myBSSMAP_Cause cause_val := GSM0808_CAUSE_RADIO_INTERFACE_FAILURE_REVERSION; |
| var BssmapCause cause := enum2int(cause_val); |
| BSSAP.send(ts_BSSMAP_ClearCommand(cause)); |
| |
| /* Expecting MGCP to DLCX the endpoint's two connections: towards BTS and towards MSC */ |
| var MgcpCommand mgcp; |
| interleave { |
| [] BSSAP.receive(tr_BSSMAP_ClearComplete); |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got first DLCX: ", mgcp); |
| } |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got second DLCX: ", mgcp); |
| } |
| } |
| setverdict(pass); |
| f_sleep(1.0); |
| |
| setverdict(pass); |
| } |
| testcase TC_ho_in_fail_msc_clears() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| pars.handover.sccp_addr_msc := g_bssap.sccp_addr_own; |
| pars.handover.sccp_addr_bsc := g_bssap.sccp_addr_peer; |
| |
| vc_conn := f_start_handler(refers(f_tc_ho_in_fail_msc_clears), pars); |
| vc_conn.done; |
| } |
| |
| private function f_tc_ho_in_fail_msc_clears_after_ho_detect(charstring id) runs on MSC_ConnHdlr { |
| /* Hack: the proper way would be to wait for the BSSMAP Handover Request ACK and extract the |
| * actual assigned chan_nr from its L3 (RR Handover Command) message. But osmo-bsc starts acting |
| * on the lchan even before we get a chance to evaluate the BSSMAP Handover Request ACK. So we |
| * need to assume that osmo-bsc will activate TS 1 and already set up this lchan's RSL emulation |
| * before we get started. */ |
| var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1, RSL_CHAN_NR_Bm_ACCH)); |
| f_rslem_register(0, new_chan_nr); |
| g_chan_nr := new_chan_nr; |
| f_sleep(1.0); |
| |
| f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); |
| f_MscConnHdlr_init(g_pars.media_nr, "127.0.0.2", "127.0.0.3", FR_AMR); |
| activate(as_Media()); |
| |
| BSSAP.send(ts_BSSAP_Conn_Req(g_pars.handover.sccp_addr_bsc, g_pars.handover.sccp_addr_msc, |
| f_gen_handover_req())); |
| BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_CONF_IND); |
| |
| /* The RSL Emulation magically accepts the Chan Activ behind the scenes. */ |
| |
| var PDU_BSSAP rx_bssap; |
| var octetstring ho_command_str; |
| |
| BSSAP.receive(tr_BSSMAP_HandoverRequestAcknowledge(?)) -> value rx_bssap; |
| |
| ho_command_str := rx_bssap.pdu.bssmap.handoverRequestAck.layer3Information.layer3info; |
| log("Received L3 Info in HO Request Ack: ", ho_command_str); |
| var PDU_ML3_NW_MS ho_command := dec_PDU_ML3_NW_MS(ho_command_str); |
| log("L3 Info in HO Request Ack is ", ho_command); |
| |
| var GsmArfcn arfcn; |
| var RslChannelNr actual_new_chan_nr; |
| f_ChDesc2RslChanNr(ho_command.msgs.rrm.handoverCommand.channelDescription2, |
| actual_new_chan_nr, arfcn); |
| |
| if (actual_new_chan_nr != new_chan_nr) { |
| log("ERROR: osmo-bsc assigned a different lchan than we assumed above -- this test will fail now.", |
| " Assumed: ", new_chan_nr, " Assigned: ", actual_new_chan_nr); |
| setverdict(fail); |
| return; |
| } |
| log("Handover Command chan_nr is", actual_new_chan_nr); |
| |
| /* Now the MSC forwards the RR Handover Command to the other BSC, which |
| * tells the MS to handover to the new lchan. Here comes the new MS on |
| * the new lchan with a Handover RACH: */ |
| |
| /* send handover detect */ |
| |
| RSL.send(ts_RSL_HANDO_DET(new_chan_nr)); |
| |
| BSSAP.receive(tr_BSSMAP_HandoverDetect); |
| |
| /* The MSC chooses to clear the connection now, maybe we got the |
| * Handover RACH on the new cell but the MS still signaled Handover |
| * Failure to the old BSS? */ |
| |
| var myBSSMAP_Cause cause_val := GSM0808_CAUSE_RADIO_INTERFACE_FAILURE_REVERSION; |
| var BssmapCause cause := enum2int(cause_val); |
| BSSAP.send(ts_BSSMAP_ClearCommand(cause)); |
| |
| /* Expecting MGCP to DLCX the endpoint's two connections: towards BTS and towards MSC */ |
| var MgcpCommand mgcp; |
| interleave { |
| [] BSSAP.receive(tr_BSSMAP_ClearComplete); |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got first DLCX: ", mgcp); |
| } |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got second DLCX: ", mgcp); |
| } |
| } |
| setverdict(pass); |
| f_sleep(1.0); |
| } |
| testcase TC_ho_in_fail_msc_clears_after_ho_detect() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| pars.handover.sccp_addr_msc := g_bssap.sccp_addr_own; |
| pars.handover.sccp_addr_bsc := g_bssap.sccp_addr_peer; |
| |
| vc_conn := f_start_handler(refers(f_tc_ho_in_fail_msc_clears_after_ho_detect), pars); |
| vc_conn.done; |
| } |
| |
| /* The new BSS's lchan times out before the MSC decides that handover failed. */ |
| private function f_tc_ho_in_fail_no_detect(charstring id) runs on MSC_ConnHdlr { |
| var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1, RSL_CHAN_NR_Bm_ACCH)); |
| f_rslem_register(0, new_chan_nr); |
| g_chan_nr := new_chan_nr; |
| f_sleep(1.0); |
| |
| f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); |
| f_MscConnHdlr_init(g_pars.media_nr, "127.0.0.2", "127.0.0.3", FR_AMR); |
| activate(as_Media()); |
| |
| BSSAP.send(ts_BSSAP_Conn_Req(g_pars.handover.sccp_addr_bsc, g_pars.handover.sccp_addr_msc, |
| f_gen_handover_req())); |
| BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_CONF_IND); |
| |
| /* The RSL Emulation magically accepts the Chan Activ behind the scenes. */ |
| |
| var PDU_BSSAP rx_bssap; |
| var octetstring ho_command_str; |
| |
| BSSAP.receive(tr_BSSMAP_HandoverRequestAcknowledge(?)) -> value rx_bssap; |
| |
| ho_command_str := rx_bssap.pdu.bssmap.handoverRequestAck.layer3Information.layer3info; |
| log("Received L3 Info in HO Request Ack: ", ho_command_str); |
| var PDU_ML3_NW_MS ho_command := dec_PDU_ML3_NW_MS(ho_command_str); |
| log("L3 Info in HO Request Ack is ", ho_command); |
| |
| var GsmArfcn arfcn; |
| var RslChannelNr actual_new_chan_nr; |
| f_ChDesc2RslChanNr(ho_command.msgs.rrm.handoverCommand.channelDescription2, |
| actual_new_chan_nr, arfcn); |
| |
| if (actual_new_chan_nr != new_chan_nr) { |
| log("ERROR: osmo-bsc assigned a different lchan than we assumed above -- this test will fail now.", |
| " Assumed: ", new_chan_nr, " Assigned: ", actual_new_chan_nr); |
| setverdict(fail); |
| return; |
| } |
| log("Handover Command chan_nr is", actual_new_chan_nr); |
| |
| /* Now the MSC forwards the RR Handover Command to the other BSC, which |
| * tells the MS to handover to the new lchan. But the MS never shows up |
| * on the new lchan. */ |
| |
| BSSAP.receive(tr_BSSMAP_HandoverFailure); |
| |
| /* Did osmo-bsc also send a Clear Request? */ |
| timer T := 0.5; |
| T.start; |
| alt { |
| [] BSSAP.receive(tr_BSSMAP_ClearRequest); |
| [] T.timeout { } |
| } |
| |
| /* MSC plays along with a Clear Command (no matter whether osmo-bsc |
| * asked for it, this is a Handover Failure after all). */ |
| |
| var myBSSMAP_Cause cause_val := GSM0808_CAUSE_RADIO_INTERFACE_FAILURE_REVERSION; |
| var BssmapCause cause := enum2int(cause_val); |
| BSSAP.send(ts_BSSMAP_ClearCommand(cause)); |
| |
| /* Expecting MGCP to DLCX the endpoint's two connections: towards BTS and towards MSC */ |
| var MgcpCommand mgcp; |
| interleave { |
| [] BSSAP.receive(tr_BSSMAP_ClearComplete); |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got first DLCX: ", mgcp); |
| } |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got second DLCX: ", mgcp); |
| } |
| } |
| setverdict(pass); |
| f_sleep(1.0); |
| |
| setverdict(pass); |
| } |
| testcase TC_ho_in_fail_no_detect() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| pars.handover.sccp_addr_msc := g_bssap.sccp_addr_own; |
| pars.handover.sccp_addr_bsc := g_bssap.sccp_addr_peer; |
| |
| vc_conn := f_start_handler(refers(f_tc_ho_in_fail_no_detect), pars); |
| vc_conn.done; |
| } |
| |
| /* Same as f_tc_ho_in_fail_no_detect, but MSC fails to send a Clear Command */ |
| private function f_tc_ho_in_fail_no_detect2(charstring id) runs on MSC_ConnHdlr { |
| var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1, RSL_CHAN_NR_Bm_ACCH)); |
| f_rslem_register(0, new_chan_nr); |
| g_chan_nr := new_chan_nr; |
| f_sleep(1.0); |
| |
| f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); |
| f_MscConnHdlr_init(g_pars.media_nr, "127.0.0.2", "127.0.0.3", FR_AMR); |
| activate(as_Media()); |
| |
| BSSAP.send(ts_BSSAP_Conn_Req(g_pars.handover.sccp_addr_bsc, g_pars.handover.sccp_addr_msc, |
| f_gen_handover_req())); |
| BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_CONF_IND); |
| |
| /* The RSL Emulation magically accepts the Chan Activ behind the scenes. */ |
| |
| var PDU_BSSAP rx_bssap; |
| var octetstring ho_command_str; |
| |
| BSSAP.receive(tr_BSSMAP_HandoverRequestAcknowledge(?)) -> value rx_bssap; |
| |
| ho_command_str := rx_bssap.pdu.bssmap.handoverRequestAck.layer3Information.layer3info; |
| log("Received L3 Info in HO Request Ack: ", ho_command_str); |
| var PDU_ML3_NW_MS ho_command := dec_PDU_ML3_NW_MS(ho_command_str); |
| log("L3 Info in HO Request Ack is ", ho_command); |
| |
| var GsmArfcn arfcn; |
| var RslChannelNr actual_new_chan_nr; |
| f_ChDesc2RslChanNr(ho_command.msgs.rrm.handoverCommand.channelDescription2, |
| actual_new_chan_nr, arfcn); |
| |
| if (actual_new_chan_nr != new_chan_nr) { |
| log("ERROR: osmo-bsc assigned a different lchan than we assumed above -- this test will fail now.", |
| " Assumed: ", new_chan_nr, " Assigned: ", actual_new_chan_nr); |
| setverdict(fail); |
| return; |
| } |
| log("Handover Command chan_nr is", actual_new_chan_nr); |
| |
| /* Now the MSC forwards the RR Handover Command to the other BSC, which |
| * tells the MS to handover to the new lchan. But the MS never shows up |
| * on the new lchan. */ |
| |
| BSSAP.receive(tr_BSSMAP_HandoverFailure); |
| |
| /* MSC plays dumb and sends no Clear Command */ |
| |
| /* Expecting MGCP to DLCX the endpoint's two connections: towards BTS and towards MSC */ |
| var PDU_BSSAP rx_clear_request; |
| var MgcpCommand mgcp; |
| interleave { |
| [] BSSAP.receive(tr_BSSMAP_ClearRequest) -> value rx_clear_request { |
| var BssmapCause cause := bit2int(rx_clear_request.pdu.bssmap.clearRequest.cause.causeValue); |
| BSSAP.send(ts_BSSMAP_ClearCommand(cause)); |
| }; |
| [] BSSAP.receive(tr_BSSMAP_ClearComplete); |
| |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got first DLCX: ", mgcp); |
| } |
| [] MGCP.receive(tr_DLCX()) -> value mgcp { |
| log("Got second DLCX: ", mgcp); |
| } |
| } |
| setverdict(pass); |
| f_sleep(1.0); |
| } |
| testcase TC_ho_in_fail_no_detect2() runs on test_CT { |
| var MSC_ConnHdlr vc_conn; |
| var TestHdlrParams pars := f_gen_test_hdlr_pars(); |
| |
| f_init(1, true); |
| f_sleep(1.0); |
| |
| pars.handover.sccp_addr_msc := g_bssap.sccp_addr_own; |
| pars.handover.sccp_addr_bsc := g_bssap.sccp_addr_peer; |
| |
| vc_conn := f_start_handler(refers(f_tc_ho_in_fail_no_detect2), pars); |
| vc_conn.done; |
| } |
| |
| /* OS#3041: Open and close N connections in a normal fashion, and expect no |
| * BSSMAP Reset just because of that. */ |
| testcase TC_bssap_rlsd_does_not_cause_bssmap_reset() runs on test_CT { |
| var default d; |
| var integer i; |
| var DchanTuple dt; |
| |
| f_init(); |
| |
| /* Wait for initial BSSMAP Reset to pass */ |
| f_sleep(4.0); |
| |
| d := activate(no_bssmap_reset()); |
| |
| /* Setup up a number of connections and RLSD them again from the MSC |
| * side. In the buggy behavior, the fourth one triggers BSSMAP Reset. |
| * Let's do it some more times for good measure. */ |
| for (i := 0; i < 4; i := i+1) { |
| /* Since we're doing a lot of runs, give each one a fresh |
| * T_guard from the top. */ |
| T_guard.start; |
| |
| /* Setup a BSSAP connection and clear it right away. This is |
| * the MSC telling the BSC about a planned release, it's not an |
| * erratic loss of a connection. */ |
| dt := f_est_dchan(int2oct(i,1), 23+i, '00010203040506'O); |
| |
| /* MSC disconnects (RLSD). */ |
| BSSAP.send(ts_BSSAP_DISC_req(dt.sccp_conn_id, 0)); |
| } |
| |
| /* In the buggy behavior, a timeout of 2 seconds happens between above |
| * trigger (logs "SIGTRAN connection down, reconnecting...") and the |
| * actual BSSMAP Reset. Wait a bit longer just to make sure. */ |
| f_sleep(4.0); |
| |
| deactivate(d); |
| f_shutdown_helper(); |
| } |
| |
| /* OS#3041: Open and close N connections in a normal fashion, and expect no |
| * BSSMAP Reset just because of that. Invoke the release by a BSSMAP Clear from |
| * the MSC. */ |
| testcase TC_bssmap_clear_does_not_cause_bssmap_reset() runs on test_CT { |
| var default d; |
| var integer i; |
| var DchanTuple dt; |
| var BSSAP_N_DATA_ind rx_di; |
| var myBSSMAP_Cause cause_val := GSM0808_CAUSE_CALL_CONTROL; |
| var BssmapCause cause := enum2int(cause_val); |
| |
| f_init(); |
| |
| /* Wait for initial BSSMAP Reset to pass */ |
| f_sleep(4.0); |
| |
| d := activate(no_bssmap_reset()); |
| |
| /* Setup up a number of connections and RLSD them again from the MSC |
| * side. In the buggy behavior, the fourth one triggers BSSMAP Reset. |
| * Let's do it some more times for good measure. */ |
| for (i := 0; i < 8; i := i+1) { |
| /* Since we're doing a lot of runs, give each one a fresh |
| * T_guard from the top. */ |
| T_guard.start; |
| |
| /* Setup a BSSAP connection and clear it right away. This is |
| * the MSC telling the BSC about a planned release, it's not an |
| * erratic loss of a connection. */ |
| dt := f_est_dchan(int2oct(i,1), 23+i, '00010203040506'O); |
| |
| /* Instruct BSC to clear channel */ |
| BSSAP.send(ts_BSSAP_DATA_req(dt.sccp_conn_id, ts_BSSMAP_ClearCommand(cause))); |
| |
| /* expect BSC to disable the channel */ |
| f_exp_chan_rel_and_clear(dt, 0); |
| } |
| |
| /* In the buggy behavior, a timeout of 2 seconds happens between above |
| * trigger (logs "SIGTRAN connection down, reconnecting...") and the |
| * actual BSSMAP Reset. Wait a bit longer just to make sure. */ |
| f_sleep(4.0); |
| |
| deactivate(d); |
| f_shutdown_helper(); |
| } |
| |
| /* OS#3041: Open and close N connections in a normal fashion, and expect no |
| * BSSMAP Reset just because of that. Close connections from the MS side with a |
| * Release Ind on RSL. */ |
| testcase TC_ms_rel_ind_does_not_cause_bssmap_reset() runs on test_CT { |
| var default d; |
| var integer i; |
| var DchanTuple dt; |
| var BSSAP_N_DATA_ind rx_di; |
| var integer j; |
| |
| f_init(); |
| |
| /* Wait for initial BSSMAP Reset to pass */ |
| f_sleep(4.0); |
| |
| d := activate(no_bssmap_reset()); |
| |
| /* Setup up a number of connections and RLSD them again from the MSC |
| * side. In the buggy behavior, the fourth one triggers BSSMAP Reset. |
| * Let's do it some more times for good measure. */ |
| for (i := 0; i < 8; i := i+1) { |
| /* Since we're doing a lot of runs, give each one a fresh |
| * T_guard from the top. */ |
| T_guard.start; |
| |
| /* Setup a BSSAP connection and clear it right away. This is |
| * the MSC telling the BSC about a planned release, it's not an |
| * erratic loss of a connection. */ |
| dt := f_est_dchan('23'O, 23, '00010203040506'O); |
| |
| /* simulate RLL REL IND */ |
| f_ipa_tx(0, ts_RSL_REL_IND(dt.rsl_chan_nr, valueof(ts_RslLinkID_DCCH(0)))); |
| |
| /* expect Clear Request on MSC side */ |
| BSSAP.receive(tr_BSSAP_DATA_ind(dt.sccp_conn_id, tr_BSSMAP_ClearRequest)) -> value rx_di; |
| |
| /* Instruct BSC to clear channel */ |
| var BssmapCause cause := bit2int(rx_di.userData.pdu.bssmap.clearRequest.cause.causeValue); |
| BSSAP.send(ts_BSSAP_DATA_req(dt.sccp_conn_id, ts_BSSMAP_ClearCommand(cause))); |
| |
| /* expect BSC to disable the channel */ |
| f_exp_chan_rel_and_clear(dt, 0); |
| } |
| |
| /* In the buggy behavior, a timeout of 2 seconds happens between above |
| * trigger (logs "SIGTRAN connection down, reconnecting...") and the |
| * actual BSSMAP Reset. Wait a bit longer just to make sure. */ |
| f_sleep(4.0); |
| |
| deactivate(d); |
| f_shutdown_helper(); |
| } |
| |
| /*********************************************************************** |
| * IPA style dynamic PDCH |
| ***********************************************************************/ |
| |
| private function f_dyn_ipa_pdch_act(integer bts_nr, integer trx_nr, integer ts_nr, |
| template (omit) RSL_Cause nack := omit) |
| runs on test_CT { |
| var RslChannelNr chan_nr := valueof(t_RslChanNr_Bm(ts_nr)); |
| var RSL_Message rsl_unused; |
| /* ask BSC via VTY to activate a given IPA style chan as PDCH */ |
| f_vty_ts_action("pdch activate", bts_nr, trx_nr, ts_nr); |
| /* expect the BSC to issue the related RSL command */ |
| rsl_unused := f_exp_ipa_rx(0, tr_RSL_IPA_PDCH_ACT(chan_nr)); |
| if (istemplatekind(nack, "omit")) { |
| /* respond with a related acknowledgement */ |
| f_ipa_tx(0, ts_RSL_IPA_PDCH_ACT_ACK(chan_nr, ts_RSL_IE_FrameNumber(2342))); |
| } else { |
| f_ipa_tx(0, ts_RSL_IPA_PDCH_ACT_NACK(chan_nr, valueof(nack))); |
| } |
| } |
| |
| private function f_dyn_ipa_pdch_deact(integer bts_nr, integer trx_nr, integer ts_nr, |
| template (omit) RSL_Cause nack := omit) |
| runs on test_CT { |
| var RslChannelNr chan_nr := valueof(t_RslChanNr_Bm(ts_nr)); |
| var RSL_Message rsl_unused; |
| /* ask BSC via VTY to activate a given IPA style chan as PDCH */ |
| f_vty_ts_action("pdch deactivate", bts_nr, trx_nr, ts_nr); |
| /* expect the BSC to issue the related RSL command */ |
| rsl_unused := f_exp_ipa_rx(0, tr_RSL_IPA_PDCH_DEACT(chan_nr)); |
| if (istemplatekind(nack, "omit")) { |
| /* respond with a related acknowledgement */ |
| f_ipa_tx(0, ts_RSL_IPA_PDCH_DEACT_ACK(chan_nr)); |
| } else { |
| f_ipa_tx(0, ts_RSL_IPA_PDCH_DEACT_NACK(chan_nr, valueof(nack))); |
| } |
| } |
| |
| private function f_ts_dyn_mode_get(integer bts_nr, integer trx_nr, integer ts_nr) |
| runs on test_CT return charstring { |
| var charstring cmd, resp; |
| cmd := "show timeslot "&int2str(bts_nr)&" "&int2str(trx_nr)&" "&int2str(ts_nr); |
| return f_vty_transceive_match_regexp_retry(BSCVTY, cmd, "*\((*)\)*", 0, 4, 1.0); |
| } |
| |
| private function f_ts_dyn_mode_assert(integer bts_nr, integer trx_nr, integer ts_nr, |
| template charstring exp) |
| runs on test_CT { |
| var charstring mode := f_ts_dyn_mode_get(bts_nr, trx_nr, ts_nr); |
| if (not match(mode, exp)) { |
| setverdict(fail, "Unexpected TS Mode: ", mode); |
| mtc.stop; |
| } |
| } |
| |
| private function f_ts_set_chcomb(integer bts_nr, integer trx_nr, integer ts_nr, charstring chcomb) |
| runs on test_CT { |
| f_vty_enter_cfg_ts(BSCVTY, bts_nr, trx_nr, ts_nr); |
| f_vty_transceive(BSCVTY, "phys_chan_config " & chcomb); |
| f_vty_transceive(BSCVTY, "end"); |
| } |
| |
| private const charstring TCHF_MODE := "TCH/F mode"; |
| private const charstring TCHH_MODE := "TCH/H mode"; |
| private const charstring PDCH_MODE := "PDCH mode"; |
| private const charstring NONE_MODE := "NONE mode"; |
| |
| /* Test IPA PDCH activation / deactivation triggered by VTY */ |
| testcase TC_dyn_pdch_ipa_act_deact() runs on test_CT { |
| var RSL_Message rsl_unused; |
| |
| /* change Timeslot 6 before f_init() starts RSL */ |
| f_init_vty(); |
| f_ts_set_chcomb(0, 0, 6, "TCH/F_PDCH"); |
| f_vty_transceive(BSCVTY, "drop bts connection 0 oml"); |
| |
| f_init(1, false); |
| f_sleep(1.0); |
| |
| var RslChannelNr chan_nr := valueof(t_RslChanNr_Bm(6)); |
| |
| log("TCH/F_PDCH pchan starts out in TCH/F mode:"); |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE); |
| /* The BSC will activate the dynamic PDCH by default, so confirm that */ |
| rsl_unused := f_exp_ipa_rx(0, tr_RSL_IPA_PDCH_ACT(chan_nr)); |
| f_ipa_tx(0, ts_RSL_IPA_PDCH_ACT_ACK(chan_nr, ts_RSL_IE_FrameNumber(2342))); |
| f_sleep(1.0); |
| log("TCH/F_PDCH pchan, PDCH ACT was ACKed, so now in PDCH mode:"); |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, PDCH_MODE); |
| |
| /* De-activate it via VTY */ |
| f_dyn_ipa_pdch_deact(0, 0, chan_nr.tn); |
| f_sleep(1.0); |
| log("TCH/F_PDCH pchan, PDCH DEACT via VTY, so now back in TCH/F mode:"); |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE); |
| |
| /* re-activate it via VTY */ |
| f_dyn_ipa_pdch_act(0, 0, chan_nr.tn); |
| f_sleep(1.0); |
| log("TCH/F_PDCH pchan, PDCH ACT via VTY, so now in PDCH mode:"); |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, PDCH_MODE); |
| |
| /* and finally de-activate it again */ |
| f_dyn_ipa_pdch_deact(0, 0, chan_nr.tn); |
| f_sleep(1.0); |
| log("TCH/F_PDCH pchan, PDCH DEACT via VTY, so now back in TCH/F mode:"); |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE); |
| |
| /* clean up config */ |
| f_ts_set_chcomb(0, 0, 6, "PDCH"); |
| |
| setverdict(pass); |
| } |
| |
| /* Test IPA PDCH activation NACK */ |
| testcase TC_dyn_pdch_ipa_act_nack() runs on test_CT { |
| var RSL_Message rsl_unused; |
| |
| /* change Timeslot 6 before f_init() starts RSL */ |
| f_init_vty(); |
| f_ts_set_chcomb(0, 0, 6, "TCH/F_PDCH"); |
| f_vty_transceive(BSCVTY, "drop bts connection 0 oml"); |
| |
| f_init(1, false); |
| f_sleep(1.0); |
| |
| var RslChannelNr chan_nr := valueof(t_RslChanNr_Bm(6)); |
| |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE); |
| /* The BSC will activate the dynamic PDCH by default, so confirm that */ |
| rsl_unused := f_exp_ipa_rx(0, tr_RSL_IPA_PDCH_ACT(chan_nr)); |
| f_ipa_tx(0, ts_RSL_IPA_PDCH_ACT_ACK(chan_nr, ts_RSL_IE_FrameNumber(2342))); |
| f_sleep(1.0); |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, PDCH_MODE); |
| |
| /* De-activate it via VTY */ |
| f_dyn_ipa_pdch_deact(0, 0, chan_nr.tn); |
| f_sleep(1.0); |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE); |
| |
| /* re-activate it via VTY, but fail that; check BSC still assumes TCH/F mode */ |
| f_dyn_ipa_pdch_act(0, 0, chan_nr.tn, RSL_ERR_EQUIPMENT_FAIL); |
| f_sleep(1.0); |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE); |
| |
| /* clean up config */ |
| f_ts_set_chcomb(0, 0, 6, "PDCH"); |
| |
| setverdict(pass); |
| } |
| |
| |
| /*********************************************************************** |
| * Osmocom style dynamic PDCH |
| ***********************************************************************/ |
| |
| private function f_dyn_osmo_pdch_act(integer bts_nr, integer trx_nr, integer ts_nr, |
| template (omit) RSL_Cause nack := omit) |
| runs on test_CT { |
| var RslChannelNr chan_nr := valueof(t_RslChanNr_PDCH(ts_nr)); |
| var RSL_Message rsl_unused; |
| /* ask BSC via VTY to activate a given IPA style chan as PDCH */ |
| /* FIXME: no VTY command to activate Osmocom PDCH !! */ |
| /* expect the BSC to issue the related RSL command */ |
| rsl_unused := f_exp_ipa_rx(0, tr_RSL_CHAN_ACT(chan_nr, ?)); |
| if (istemplatekind(nack, "omit")) { |
| /* respond with a related acknowledgement */ |
| f_ipa_tx(0, ts_RSL_CHAN_ACT_ACK(chan_nr, 2342)); |
| } else { |
| f_ipa_tx(0, ts_RSL_CHAN_ACT_NACK(chan_nr, valueof(nack))); |
| } |
| } |
| |
| private function f_dyn_osmo_pdch_deact(integer bts_nr, integer trx_nr, integer ts_nr, |
| template (omit) RSL_Cause nack := omit) |
| runs on test_CT { |
| var RslChannelNr chan_nr := valueof(t_RslChanNr_PDCH(ts_nr)); |
| var RSL_Message rsl_unused; |
| /* ask BSC via VTY to activate a given IPA style chan as PDCH */ |
| /* FIXME: no VTY command to activate Osmocom PDCH !! */ |
| /* expect the BSC to issue the related RSL command */ |
| rsl_unused := f_exp_ipa_rx(0, tr_RSL_RF_CHAN_REL(chan_nr)); |
| if (istemplatekind(nack, "omit")) { |
| /* respond with a related acknowledgement */ |
| f_ipa_tx(0, ts_RSL_RF_CHAN_REL_ACK(chan_nr)); |
| } else { |
| //f_ipa_tx(0, ts_RSL_RF_CHAN_REL_NACK(chan_nr, valueof(nack))); |
| } |
| } |
| |
| /* Test Osmocom dyn PDCH activation / deactivation triggered by VTY */ |
| testcase TC_dyn_pdch_osmo_act_deact() runs on test_CT { |
| var RSL_Message rsl_unused; |
| |
| /* change Timeslot 6 before f_init() starts RSL */ |
| f_init_vty(); |
| f_ts_set_chcomb(0, 0, 6, "TCH/F_TCH/H_PDCH"); |
| f_vty_transceive(BSCVTY, "drop bts connection 0 oml"); |
| |
| f_init(1, false); |
| f_sleep(1.0); |
| |
| var RslChannelNr chan_nr := valueof(t_RslChanNr_PDCH(6)); |
| |
| log("TCH/F_TCH/H_PDCH pchan starts out in disabled mode:"); |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, NONE_MODE); |
| /* The BSC will activate the dynamic PDCH by default, so confirm that */ |
| rsl_unused := f_exp_ipa_rx(0, tr_RSL_CHAN_ACT_PDCH(chan_nr, ?)); |
| |
| f_ipa_tx(0, ts_RSL_CHAN_ACT_ACK(chan_nr, 2342)); |
| f_sleep(1.0); |
| log("TCH/F_TCH/H_PDCH requested to PDCH ACT on startup, which was ACKed, so now in PDCH:"); |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, PDCH_MODE); |
| |
| /* clean up config */ |
| f_ts_set_chcomb(0, 0, 6, "PDCH"); |
| |
| setverdict(pass); |
| } |
| |
| /* Test Osmocom dyn PDCH activation NACK behavior */ |
| testcase TC_dyn_pdch_osmo_act_nack() runs on test_CT { |
| var RSL_Message rsl_unused; |
| |
| /* change Timeslot 6 before f_init() starts RSL */ |
| f_init_vty(); |
| f_ts_set_chcomb(0, 0, 6, "TCH/F_TCH/H_PDCH"); |
| f_vty_transceive(BSCVTY, "drop bts connection 0 oml"); |
| |
| f_init(1, false); |
| f_sleep(1.0); |
| |
| var RslChannelNr chan_nr := valueof(t_RslChanNr_PDCH(6)); |
| |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, NONE_MODE); |
| /* The BSC will activate the dynamic PDCH by default, so confirm that */ |
| rsl_unused := f_exp_ipa_rx(0, tr_RSL_CHAN_ACT_PDCH(chan_nr, ?)); |
| |
| /* NACK this activation and expect the "show timeslot" mode still to be NONE */ |
| f_ipa_tx(0, ts_RSL_CHAN_ACT_NACK(chan_nr, RSL_ERR_EQUIPMENT_FAIL)); |
| f_sleep(1.0); |
| f_ts_dyn_mode_assert(0, 0, chan_nr.tn, NONE_MODE); |
| |
| /* clean up config */ |
| f_ts_set_chcomb(0, 0, 6, "PDCH"); |
| |
| setverdict(pass); |
| } |
| |
| testcase TC_chopped_ipa_ping() runs on test_CT { |
| const Integers bsc_ipa_ports := {mp_bsc_rsl_port, mp_bsc_oml_port, mp_bsc_ctrl_port}; |
| for (var integer i := 0; i < lengthof(bsc_ipa_ports); i := i + 1) { |
| IPA_Testing.f_run_TC_chopped_ipa_ping(mp_bsc_ip, bsc_ipa_ports[i], CONNECT_TO_SERVER); |
| } |
| } |
| |
| testcase TC_chopped_ipa_payload() runs on test_CT { |
| const Integers bsc_ipa_ports := {mp_bsc_rsl_port, mp_bsc_oml_port |
| /* TODO: mp_bsc_ctrl_port does not work yet */}; |
| for (var integer i := 0; i < lengthof(bsc_ipa_ports); i := i + 1) { |
| IPA_Testing.f_run_TC_chopped_ipa_payload(mp_bsc_ip, bsc_ipa_ports[i], CONNECT_TO_SERVER); |
| } |
| } |
| |
| |
| /* Dyn PDCH todo: |
| * activate OSMO as TCH/F |
| * activate OSMO as TCH/H |
| * does the BSC-located PCU socket get the updated INFO? |
| * what if no PCU is connected at the time? |
| * is the info correct on delayed PCU (re)connect? |
| */ |
| |
| control { |
| /* CTRL interface testing */ |
| execute( TC_ctrl_msc_connection_status() ); |
| execute( TC_ctrl_msc0_connection_status() ); |
| execute( TC_ctrl() ); |
| |
| /* RSL DCHAN Channel ACtivation / Deactivation */ |
| execute( TC_chan_act_noreply() ); |
| execute( TC_chan_act_counter() ); |
| execute( TC_chan_act_ack_noest() ); |
| execute( TC_chan_act_ack_est_ind_noreply() ); |
| execute( TC_chan_act_ack_est_ind_refused() ); |
| execute( TC_chan_act_nack() ); |
| execute( TC_chan_exhaustion() ); |
| execute( TC_chan_rel_rll_rel_ind() ); |
| execute( TC_chan_rel_conn_fail() ); |
| execute( TC_chan_rel_hard_clear() ); |
| execute( TC_chan_rel_hard_rlsd() ); |
| execute( TC_chan_rel_hard_rlsd_ms_dead() ); |
| execute( TC_chan_rel_a_reset() ); |
| |
| execute( TC_outbound_connect() ); |
| |
| /* Assignment related */ |
| execute( TC_assignment_cic_only() ); |
| execute( TC_assignment_csd() ); |
| execute( TC_assignment_ctm() ); |
| execute( TC_assignment_sign() ); |
| execute( TC_assignment_fr_a5_0() ); |
| execute( TC_assignment_fr_a5_1() ); |
| if (mp_bssap_cfg.transport == BSSAP_TRANSPORT_AoIP) { |
| execute( TC_assignment_fr_a5_1_codec_missing() ); |
| } |
| execute( TC_assignment_fr_a5_3() ); |
| execute( TC_assignment_fr_a5_4() ); |
| execute( TC_ciph_mode_a5_0() ); |
| execute( TC_ciph_mode_a5_1() ); |
| execute( TC_ciph_mode_a5_3() ); |
| |
| execute( TC_assignment_codec_fr() ); |
| execute( TC_assignment_codec_hr() ); |
| execute( TC_assignment_codec_efr() ); |
| execute( TC_assignment_codec_amr_f() ); |
| execute( TC_assignment_codec_amr_h() ); |
| |
| /* RLL Establish Indication on inactive DCHAN / SAPI */ |
| execute( TC_rll_est_ind_inact_lchan() ); |
| execute( TC_rll_est_ind_inval_sapi1() ); |
| execute( TC_rll_est_ind_inval_sapi3() ); |
| execute( TC_rll_est_ind_inval_sacch() ); |
| |
| /* Paging related tests */ |
| execute( TC_paging_imsi_nochan() ); |
| execute( TC_paging_tmsi_nochan() ); |
| execute( TC_paging_tmsi_any() ); |
| execute( TC_paging_tmsi_sdcch() ); |
| execute( TC_paging_tmsi_tch_f() ); |
| execute( TC_paging_tmsi_tch_hf() ); |
| execute( TC_paging_imsi_nochan_cgi() ); |
| execute( TC_paging_imsi_nochan_lac_ci() ); |
| execute( TC_paging_imsi_nochan_ci() ); |
| execute( TC_paging_imsi_nochan_lai() ); |
| execute( TC_paging_imsi_nochan_lac() ); |
| execute( TC_paging_imsi_nochan_all() ); |
| execute( TC_paging_imsi_nochan_plmn_lac_rnc() ); |
| execute( TC_paging_imsi_nochan_rnc() ); |
| execute( TC_paging_imsi_nochan_lac_rnc() ); |
| execute( TC_paging_imsi_nochan_lacs() ); |
| execute( TC_paging_imsi_nochan_lacs_empty() ); |
| execute( TC_paging_imsi_nochan_cgi_unknown_cid() ); |
| execute( TC_paging_imsi_a_reset() ); |
| execute( TC_paging_imsi_load() ); |
| execute( TC_paging_counter() ); |
| |
| execute( TC_rsl_drop_counter() ); |
| execute( TC_rsl_unknown_unit_id() ); |
| |
| execute( TC_oml_unknown_unit_id() ); |
| |
| execute( TC_classmark() ); |
| execute( TC_unsol_ass_fail() ); |
| execute( TC_unsol_ass_compl() ); |
| execute( TC_unsol_ho_fail() ); |
| execute( TC_err_82_short_msg() ); |
| execute( TC_err_84_unknown_msg() ); |
| |
| execute( TC_ho_int() ); |
| |
| execute( TC_ho_out_of_this_bsc() ); |
| execute( TC_ho_out_fail_no_msc_response() ); |
| execute( TC_ho_out_fail_rr_ho_failure() ); |
| execute( TC_ho_out_fail_no_ho_detect() ); |
| |
| execute( TC_ho_into_this_bsc() ); |
| execute( TC_ho_in_fail_msc_clears() ); |
| execute( TC_ho_in_fail_msc_clears_after_ho_detect() ); |
| execute( TC_ho_in_fail_no_detect() ); |
| execute( TC_ho_in_fail_no_detect2() ); |
| |
| execute( TC_bssap_rlsd_does_not_cause_bssmap_reset() ); |
| execute( TC_bssmap_clear_does_not_cause_bssmap_reset() ); |
| execute( TC_ms_rel_ind_does_not_cause_bssmap_reset() ); |
| |
| execute( TC_dyn_pdch_ipa_act_deact() ); |
| execute( TC_dyn_pdch_ipa_act_nack() ); |
| execute( TC_dyn_pdch_osmo_act_deact() ); |
| execute( TC_dyn_pdch_osmo_act_nack() ); |
| |
| execute( TC_chopped_ipa_ping() ); |
| execute( TC_chopped_ipa_payload() ); |
| |
| /* at bottom as they might crash OsmoBSC before OS#3182 is fixed */ |
| execute( TC_early_conn_fail() ); |
| execute( TC_late_conn_fail() ); |
| |
| } |
| |
| } |