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Neels Hofmeyr nhofmeyr at sysmocom.deI guess I'm again hitting the same ttcn3 wall that has caused me trouble countless times before... I'm trying to run the already existing TC_ho_into_this_bsc(), but before it starts I want to occupy all lchans. This is the working TC_ho_into_this_bsc(): 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; } I just want to insert a bit of TC_chan_exhaustion() like so: testcase TC_ho_in_fail_no_chan() runs on test_CT { var integer i; var MSC_ConnHdlr vc_conn; var TestHdlrParams pars := f_gen_test_hdlr_pars(); f_init(1, true); f_sleep(1.0); /* occupy all lchans */ 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); } 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_chan), pars); vc_conn.done; } But no matter which way I turn it, ttcn3 does not agree. * I either get: 21:36:03.008137 mtc BSC_Tests.ttcn:1553 Dynamic test case error: Using the value of an unbound component reference. 21:36:03.008163 mtc BSC_Tests.ttcn:1553 setverdict(error): none -> error This is during f_connect_handler(): connect(vc_conn:BSSMAPEM, g_bssap.vc_BSSMAP:PROC); with the log revealing [1] below * Or I get: 21:31:45.678006 mtc BSC_Tests.ttcn:366 Dynamic test case error: Port IPA_RSL[0] has neither connections nor mappings. Message cannot be sent on it. 21:31:45.678094 mtc BSC_Tests.ttcn:366 setverdict(error): none -> error This stuff really gets me steaming with ttcn... anyhow... I'm fairly certain it has to do with the 'true' arg of f_init() starting the RSL emulation, so I need to re-invent TC_chan_exhaustion() on the MSC_ConnHdlr? Sort of like the hack I have in f_tc_ho_into_this_bsc()? " /* 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); " I wish it were easier...? ~N [1] 21:36:03.008009 mtc BSC_Tests.ttcn:1552 XXXXX { vc_M3UA := VirtMSC-M3UA(4), vc_IPA := <unbound>, vc_WAIT := <unbound>, vc_SCCP := VirtMSC-SCCP(3), sccp_pars := { sio := { ni := '10'B, prio := '00'B, si := '0011'B }, opc := 185, dpc := 187, sls := 0, sccp_serviceType := "mtp3_itu", ssn := 254 }, sccp_addr_own := { addressIndicator := { pointCodeIndic := '1'B, ssnIndicator := '1'B, globalTitleIndic := '0000'B, routingIndicator := '1'B }, signPointCode := '00000010111001'B, subsystemNumber := 254, globalTitle := omit }, sccp_addr_peer := { addressIndicator := { pointCodeIndic := '1'B, ssnIndicator := '1'B, globalTitleIndic := '0000'B, routingIndicator := '1'B }, signPointCode := '00000010111011'B, subsystemNumber := 254, globalTitle := omit }, vc_BSSMAP := <unbound> } -- - Neels Hofmeyr <nhofmeyr at sysmocom.de> http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschäftsführer / Managing Directors: Harald Welte -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/openbsc/attachments/20181109/d0f991c8/attachment.bin>