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pespin gerrit-no-reply at lists.osmocom.orgpespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/22842 ) Change subject: pcu: Introduce tests checking Pkt Cell Chg Notif different msg retrans ...................................................................... pcu: Introduce tests checking Pkt Cell Chg Notif different msg retrans Tests verify MS retransmitting a Pkt cell Chg Notif with different target cell (hence a different NACC procedure) will be handled correctly if PCU state was in the middle of handling a different NACC request. Related: SYS#4909 Change-Id: I68c749aaabe9fe8272fc43045be09a46852359e5 --- M pcu/PCU_Tests.ttcn 1 file changed, 169 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/42/22842/1 diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn index f7687f5..251ccee 100644 --- a/pcu/PCU_Tests.ttcn +++ b/pcu/PCU_Tests.ttcn @@ -4313,6 +4313,174 @@ f_shutdown(__BFILE__, __LINE__, final := true); } +/* Test MS sending Pkt Cell Change Notify twice (different tgt cell each time) + * while waiting for CTRL resolution */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_twice() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chf_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chf_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chf_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_ipa_ctrl_wait_link_up(); + var charstring ctrl_var := "neighbor_resolve_cgi_ps_from_lac_ci." & + int2str(info_ind.lac) & "." & + int2str(info_ind.cell_id) & "." & + int2str(req_arfcn) & "." & + int2str(req_bsic); + IPA_CTRL.receive(tr_CtrlMsgGet(?, ctrl_var)) -> value rx_ctrl; + /* Before receiving CTRL response, MS retransmits Pkt cell Chg Notif with different tgt arfcn */ + cell_chf_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn + 1, req_bsic + 1); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chf_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + f_sleep(0.2); /* let some time to avoid race conditons between CTRL and RLCMAC */ + IPA_CTRL.send(ts_CtrlMsgGetRepl(rx_ctrl.cmd.id, valueof(ctrl_var), valueof("023-43-423-2-5"))); + /* We should now receive a 2nd CTRL request with the new ARFCN+BSIC */ + ctrl_var := "neighbor_resolve_cgi_ps_from_lac_ci." & + int2str(info_ind.lac) & "." & + int2str(info_ind.cell_id) & "." & + int2str(req_arfcn + 1) & "." & + int2str(req_bsic + 1); + f_ctrl_exp_get(IPA_CTRL, ctrl_var, "023-43-423-2-5"); + + /* And finally everything continues as usual with RIN procedure */ + as_outbound_nacc_rim_resolve(info_ind); + + /* Announce SI back to MS, continue NACC procedure */ + f_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test MS sending Pkt Cell Change Notify twice (different tgt cell each time) + * while waiting for SI resolution */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_twice2() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chf_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chf_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chf_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_ipa_ctrl_wait_link_up(); + var charstring ctrl_var := "neighbor_resolve_cgi_ps_from_lac_ci." & + int2str(info_ind.lac) & "." & + int2str(info_ind.cell_id) & "." & + int2str(req_arfcn) & "." & + int2str(req_bsic); + f_ctrl_exp_get(IPA_CTRL, ctrl_var, "023-43-423-2-5"); + as_outbound_nacc_rim_resolve(info_ind, do_answer := false); + /* Before receiving RIM response, MS retransmits Pkt cell Chg Notif with different tgt cell: */ + cell_chf_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn + 1, req_bsic + 1); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chf_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + f_sleep(0.2); /* let some time to avoid race conditons between CTRL and RLCMAC */ + f_outbound_nacc_rim_tx_resp(info_ind); + + /* As a result, CTRL + RIM resolution for new tgt cell should now be done: */ + ctrl_var := "neighbor_resolve_cgi_ps_from_lac_ci." & + int2str(info_ind.lac) & "." & + int2str(info_ind.cell_id) & "." & + int2str(req_arfcn + 1) & "." & + int2str(req_bsic + 1); + f_ctrl_exp_get(IPA_CTRL, ctrl_var, "023-43-423-2-5"); + + /* And finally everything continues as usual with RIN procedure */ + as_outbound_nacc_rim_resolve(info_ind); + + /* Announce SI back to MS, continue NACC procedure */ + f_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + /* Send a RIM RAN info request to the PCU and verify the response, we expect * getting the system information back which we have transfered to the PCU via * PCUIF on startup. */ @@ -4542,6 +4710,7 @@ execute( TC_nacc_outbound_si_resolve_timeout() ); execute( TC_nacc_outbound_pkt_cell_chg_notif_dup() ); execute( TC_nacc_outbound_pkt_cell_chg_notif_dup2() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_twice() ); execute( TC_rim_ran_info_req_single_rep() ); execute( TC_rim_ran_info_req_single_rep_no_si() ); -- To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/22842 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-ttcn3-hacks Gerrit-Branch: master Gerrit-Change-Id: I68c749aaabe9fe8272fc43045be09a46852359e5 Gerrit-Change-Number: 22842 Gerrit-PatchSet: 1 Gerrit-Owner: pespin <pespin at sysmocom.de> Gerrit-MessageType: newchange -------------- next part -------------- An HTML attachment was scrubbed... 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